Commit Graph

8958 Commits

Author SHA1 Message Date
Andrew Lunn
11ca3c4261 net: ethtool: netlink: Add support for triggering a cable test
Add new ethtool netlink calls to trigger the starting of a PHY cable
test.

Add Kconfig'ury to ETHTOOL_NETLINK so that PHYLIB is not a module when
ETHTOOL_NETLINK is builtin, which would result in kernel linking errors.

v2:
Remove unwanted white space change
Remove ethnl_cable_test_act_ops and use doit handler
Rename cable_test_set_policy cable_test_act_policy
Remove ETHTOOL_MSG_CABLE_TEST_ACT_REPLY

v3:
Remove ETHTOOL_MSG_CABLE_TEST_ACT_REPLY from documentation
Remove unused cable_test_get_policy
Add Reviewed-by tags

v4:
Remove unwanted blank line

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-10 12:28:41 -07:00
Yonghong Song
492e639f0c bpf: Add bpf_seq_printf and bpf_seq_write helpers
Two helpers bpf_seq_printf and bpf_seq_write, are added for
writing data to the seq_file buffer.

bpf_seq_printf supports common format string flag/width/type
fields so at least I can get identical results for
netlink and ipv6_route targets.

For bpf_seq_printf and bpf_seq_write, return value -EOVERFLOW
specifically indicates a write failure due to overflow, which
means the object will be repeated in the next bpf invocation
if object collection stays the same. Note that if the object
collection is changed, depending how collection traversal is
done, even if the object still in the collection, it may not
be visited.

For bpf_seq_printf, format %s, %p{i,I}{4,6} needs to
read kernel memory. Reading kernel memory may fail in
the following two cases:
  - invalid kernel address, or
  - valid kernel address but requiring a major fault
If reading kernel memory failed, the %s string will be
an empty string and %p{i,I}{4,6} will be all 0.
Not returning error to bpf program is consistent with
what bpf_trace_printk() does for now.

bpf_seq_printf may return -EBUSY meaning that internal percpu
buffer for memory copy of strings or other pointees is
not available. Bpf program can return 1 to indicate it
wants the same object to be repeated. Right now, this should not
happen on no-RT kernels since migrate_disable(), which guards
bpf prog call, calls preempt_disable().

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200509175914.2476661-1-yhs@fb.com
2020-05-09 17:05:26 -07:00
Yonghong Song
ac51d99bf8 bpf: Create anonymous bpf iterator
A new bpf command BPF_ITER_CREATE is added.

The anonymous bpf iterator is seq_file based.
The seq_file private data are referenced by targets.
The bpf_iter infrastructure allocated additional space
at seq_file->private before the space used by targets
to store some meta data, e.g.,
  prog:       prog to run
  session_id: an unique id for each opened seq_file
  seq_num:    how many times bpf programs are queried in this session
  done_stop:  an internal state to decide whether bpf program
              should be called in seq_ops->stop() or not

The seq_num will start from 0 for valid objects.
The bpf program may see the same seq_num more than once if
 - seq_file buffer overflow happens and the same object
   is retried by bpf_seq_read(), or
 - the bpf program explicitly requests a retry of the
   same object

Since module is not supported for bpf_iter, all target
registeration happens at __init time, so there is no
need to change bpf_iter_unreg_target() as it is used
mostly in error path of the init function at which time
no bpf iterators have been created yet.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200509175905.2475770-1-yhs@fb.com
2020-05-09 17:05:26 -07:00
Yonghong Song
de4e05cac4 bpf: Support bpf tracing/iter programs for BPF_LINK_CREATE
Given a bpf program, the step to create an anonymous bpf iterator is:
  - create a bpf_iter_link, which combines bpf program and the target.
    In the future, there could be more information recorded in the link.
    A link_fd will be returned to the user space.
  - create an anonymous bpf iterator with the given link_fd.

The bpf_iter_link can be pinned to bpffs mount file system to
create a file based bpf iterator as well.

The benefit to use of bpf_iter_link:
  - using bpf link simplifies design and implementation as bpf link
    is used for other tracing bpf programs.
  - for file based bpf iterator, bpf_iter_link provides a standard
    way to replace underlying bpf programs.
  - for both anonymous and free based iterators, bpf link query
    capability can be leveraged.

The patch added support of tracing/iter programs for BPF_LINK_CREATE.
A new link type BPF_LINK_TYPE_ITER is added to facilitate link
querying. Currently, only prog_id is needed, so there is no
additional in-kernel show_fdinfo() and fill_link_info() hook
is needed for BPF_LINK_TYPE_ITER link.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200509175901.2475084-1-yhs@fb.com
2020-05-09 17:05:26 -07:00
Yonghong Song
15d83c4d7c bpf: Allow loading of a bpf_iter program
A bpf_iter program is a tracing program with attach type
BPF_TRACE_ITER. The load attribute
  attach_btf_id
is used by the verifier against a particular kernel function,
which represents a target, e.g., __bpf_iter__bpf_map
for target bpf_map which is implemented later.

The program return value must be 0 or 1 for now.
  0 : successful, except potential seq_file buffer overflow
      which is handled by seq_file reader.
  1 : request to restart the same object

In the future, other return values may be used for filtering or
teminating the iterator.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200509175900.2474947-1-yhs@fb.com
2020-05-09 17:05:26 -07:00
Stanislav Fomichev
8086fbaf49 bpf: Allow any port in bpf_bind helper
We want to have a tighter control on what ports we bind to in
the BPF_CGROUP_INET{4,6}_CONNECT hooks even if it means
connect() becomes slightly more expensive. The expensive part
comes from the fact that we now need to call inet_csk_get_port()
that verifies that the port is not used and allocates an entry
in the hash table for it.

Since we can't rely on "snum || !bind_address_no_port" to prevent
us from calling POST_BIND hook anymore, let's add another bind flag
to indicate that the call site is BPF program.

v5:
* fix wrong AF_INET (should be AF_INET6) in the bpf program for v6

v3:
* More bpf_bind documentation refinements (Martin KaFai Lau)
* Add UDP tests as well (Martin KaFai Lau)
* Don't start the thread, just do socket+bind+listen (Martin KaFai Lau)

v2:
* Update documentation (Andrey Ignatov)
* Pass BIND_FORCE_ADDRESS_NO_PORT conditionally (Andrey Ignatov)

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrey Ignatov <rdna@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200508174611.228805-5-sdf@google.com
2020-05-09 00:48:20 +02:00
Mika Kahola
50b6f619a0 uapi/drm/drm_fourcc.h: Note on platform specificity for format modifiers
Make an additional note on DRM format modifiers for x and y tiling. These
format modifiers are defined for BDW+ platforms and therefore definition
is not valid for older gens. This is due to address swizzling for tiled
surfaces is no longer used. For newer platforms main memory controller has
a more effective address swizzling algorithm.

v2: Rephrase comment (Daniel)

Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200506120827.12250-1-mika.kahola@intel.com
2020-05-08 12:12:58 +02:00
Dave Airlie
370fb6b0aa Merge tag 'amd-drm-next-5.8-2020-04-30' of git://people.freedesktop.org/~agd5f/linux into drm-next
amd-drm-next-5.8-2020-04-30:

amdgpu:
- SR-IOV fixes
- SDMA fix for Navi
- VCN 2.5 DPG fixes
- Display fixes
- Display stuttering fixes for pageflip and cursor
- Add support for handling encrypted GPU memory
- Add UAPI for encrypted GPU memory
- Rework IB pool handling

amdkfd:
- Expose asic revision in topology
- Add UAPI for GWS (Global Wave Sync) resource management

UAPI:
- Add amdgpu UAPI for encrypted GPU memory
  Used by: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4401
- Add amdkfd UAPI for GWS (Global Wave Sync) resource management
  Thunk usage of KFD ioctl: https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface/blob/roc-2.8.0/src/queues.c#L840
  ROCr usage of Thunk API: https://github.com/RadeonOpenCompute/ROCR-Runtime/blob/roc-3.1.0/src/core/runtime/amd_gpu_agent.cpp#L597
  HCC code using ROCr API: 98ee9f3494/lib/hsa/mcwamp_hsa.cpp (L2161)
  HIP code using HCC API: cf8589b8c8/src/hip_module.cpp (L567)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200430212951.3902-1-alexander.deucher@amd.com
2020-05-08 13:31:08 +10:00
David S. Miller
3793faad7b Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts were all overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-06 22:10:13 -07:00
Oleksij Rempel
bdbdac7649 ethtool: provide UAPI for PHY master/slave configuration.
This UAPI is needed for BroadR-Reach 100BASE-T1 devices. Due to lack of
auto-negotiation support, we needed to be able to configure the
MASTER-SLAVE role of the port manually or from an application in user
space.

The same UAPI can be used for 1000BASE-T or MultiGBASE-T devices to
force MASTER or SLAVE role. See IEEE 802.3-2018:
22.2.4.3.7 MASTER-SLAVE control register (Register 9)
22.2.4.3.8 MASTER-SLAVE status register (Register 10)
40.5.2 MASTER-SLAVE configuration resolution
45.2.1.185.1 MASTER-SLAVE config value (1.2100.14)
45.2.7.10 MultiGBASE-T AN control 1 register (Register 7.32)

The MASTER-SLAVE role affects the clock configuration:

-------------------------------------------------------------------------------
When the  PHY is configured as MASTER, the PMA Transmit function shall
source TX_TCLK from a local clock source. When configured as SLAVE, the
PMA Transmit function shall source TX_TCLK from the clock recovered from
data stream provided by MASTER.

iMX6Q                     KSZ9031                XXX
------\                /-----------\        /------------\
      |                |           |        |            |
 MAC  |<----RGMII----->| PHY Slave |<------>| PHY Master |
      |<--- 125 MHz ---+-<------/  |        | \          |
------/                \-----------/        \------------/
                                               ^
                                                \-TX_TCLK

-------------------------------------------------------------------------------

Since some clock or link related issues are only reproducible in a
specific MASTER-SLAVE-role, MAC and PHY configuration, it is beneficial
to provide generic (not 100BASE-T1 specific) interface to the user space
for configuration flexibility and trouble shooting.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-06 17:45:45 -07:00
Alexei Starovoitov
f87b87a1c9 CAP_PERFMON for BPF
-----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAl6zMIUTHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYoTEOEACWUbZlswquZqSAr6pESTjAbjSPZ58s
 QfmiY218aXvyvwJeINfJduYIjtVjPL9F0qbqmm5Sh4CFflgF9QRUZLxsyuu6K7uY
 Bsy7hjHWUCO79anxgjie1rqhCxT/orW39E0nlDW72AlrebVwPRc4PmERsV9bl/9z
 Z7M7aJzza60938K8qN24A63Q4wb3uCfygUYDGkeaN46jmwlHLj8Qwu/L2pVv2/3O
 7FHEHYFK0UuvVw6byRpbPoHDbBEGApYszRlEUMRtkk/7zsvdIQJGHQpPMD5PkGY1
 kS6x1a7sdnA7++A7Oin7Uq+0y7sgVNeJyPO9o+u9wZgePZL4t87YZlwIL5NlyXIL
 JHDrz0DAckSYEAYuPnFrXtYW2AQ9TZxVuIHGsJdKW8KOdkHkYUqtXwLuj+0xf8v/
 szeJR+l6mOJzDHML7W7KzZdl+AJB/+GE55cLaRPs0bBFyLpUs/vL8BjkoDiDm3/i
 okGIWQkh8PwpujiS/mHDHqoXuVpVHYAcHD0X+zuLIUVCzKf71Kq7y2fIiHyTR4Wo
 +x5aeOFWHYOC2DwFdUQ1EiOUCtLbORqq1CDsnIE4KCtsfx1K6IHmqI8X77D8CTEp
 oSPz0kd8kgBfHwPhCepQ7DnBA1cJTiRbs6/++frU0S5R2HhIOGeLN6hrhrMjNhYD
 07jorSqL6hjjog==
 =+J1X
 -----END PGP SIGNATURE-----

Merge tag 'perf-for-bpf-2020-05-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into bpf-next

CAP_PERFMON for BPF
2020-05-06 17:12:44 -07:00
Laurent Pinchart
e5b6b07a1b media: v4l2: Extend VIDIOC_ENUM_FMT to support MC-centric devices
The VIDIOC_ENUM_FMT ioctl enumerates all formats supported by a video
node. For MC-centric devices, its behaviour has always been ill-defined,
with drivers implementing one of the following behaviours:

- No support for VIDIOC_ENUM_FMT at all
- Enumerating all formats supported by the video node, regardless of the
  configuration of the pipeline
- Enumerating formats supported by the video node for the active
  configuration of the connected subdevice

The first behaviour is obviously useless for applications. The second
behaviour provides the most information, but doesn't offer a way to find
what formats are compatible with a given pipeline configuration. The
third behaviour fixes that, but with the drawback that applications
can't enumerate all supported formats anymore, and have to modify the
active configuration of the pipeline to enumerate formats.

The situation is messy as none of the implemented behaviours are ideal,
and userspace can't predict what will happen as the behaviour is
driver-specific.

To fix this, let's extend the VIDIOC_ENUM_FMT with a missing capability:
enumerating pixel formats for a given media bus code. The media bus code
is passed through the v4l2_fmtdesc structure in a new mbus_code field
(repurposed from the reserved fields). With this capability in place,
applications can enumerate pixel formats for a given media bus code
without modifying the active configuration of the device.

The current behaviour of the ioctl is preserved when the new mbus_code
field is set to 0, ensuring compatibility with existing userspace. The
API extension is documented as mandatory for MC-centric devices (as
advertised through the V4L2_CAP_IO_MC capability), allowing applications
and compliance tools to easily determine the availability of the
VIDIOC_ENUM_FMT extension.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-05-06 12:09:04 +02:00
Niklas Söderlund
f645e6256b media: v4l2-dev/ioctl: Add V4L2_CAP_IO_MC
Add a video device capability flag to indicate that its inputs and/or
outputs are controlled by the Media Controller instead of the V4L2 API.
When this flag is set, ioctl for enum inputs and outputs are
automatically enabled and programmed to call a helper function.

Suggested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-05-06 12:08:25 +02:00
Will Deacon
80e4e56132 Merge branch 'for-next/bti-user' into for-next/bti
Merge in user support for Branch Target Identification, which narrowly
missed the cut for 5.7 after a late ABI concern.

* for-next/bti-user:
  arm64: bti: Document behaviour for dynamically linked binaries
  arm64: elf: Fix allnoconfig kernel build with !ARCH_USE_GNU_PROPERTY
  arm64: BTI: Add Kconfig entry for userspace BTI
  mm: smaps: Report arm64 guarded pages in smaps
  arm64: mm: Display guarded pages in ptdump
  KVM: arm64: BTI: Reset BTYPE when skipping emulated instructions
  arm64: BTI: Reset BTYPE when skipping emulated instructions
  arm64: traps: Shuffle code to eliminate forward declarations
  arm64: unify native/compat instruction skipping
  arm64: BTI: Decode BYTPE bits when printing PSTATE
  arm64: elf: Enable BTI at exec based on ELF program properties
  elf: Allow arch to tweak initial mmap prot flags
  arm64: Basic Branch Target Identification support
  ELF: Add ELF program property parsing support
  ELF: UAPI and Kconfig additions for ELF program properties
2020-05-05 15:15:58 +01:00
Eric Dumazet
39d010504e net_sched: sch_fq: add horizon attribute
QUIC servers would like to use SO_TXTIME, without having CAP_NET_ADMIN,
to efficiently pace UDP packets.

As far as sch_fq is concerned, we need to add safety checks, so
that a buggy application does not fill the qdisc with packets
having delivery time far in the future.

This patch adds a configurable horizon (default: 10 seconds),
and a configurable policy when a packet is beyond the horizon
at enqueue() time:
- either drop the packet (default policy)
- or cap its delivery time to the horizon.

$ tc -s -d qd sh dev eth0
qdisc fq 8022: root refcnt 257 limit 10000p flow_limit 100p buckets 1024
 orphan_mask 1023 quantum 10Kb initial_quantum 51160b low_rate_threshold 550Kbit
 refill_delay 40.0ms timer_slack 10.000us horizon 10.000s
 Sent 1234215879 bytes 837099 pkt (dropped 21, overlimits 0 requeues 6)
 backlog 0b 0p requeues 6
  flows 1191 (inactive 1177 throttled 0)
  gc 0 highprio 0 throttled 692 latency 11.480us
  pkts_too_long 0 alloc_errors 0 horizon_drops 21 horizon_caps 0

v2: fixed an overflow on 32bit kernels in fq_init(), reported
    by kbuild test robot <lkp@intel.com>

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-04 11:56:17 -07:00
Gustavo A. R. Silva
1e6e9d0f48 uapi: revert flexible-array conversions
These structures can get embedded in other structures in user-space
and cause all sorts of warnings and problems. So, we better don't take
any chances and keep the zero-length arrays in place for now.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2020-05-04 11:30:15 -05:00
Ira Weiny
712b2698e4 fs/stat: Define DAX statx attribute
In order for users to determine if a file is currently operating in DAX
state (effective DAX).  Define a statx attribute value and set that
attribute if the effective DAX flag is set.

To go along with this we propose the following addition to the statx man
page:

STATX_ATTR_DAX

	The file is in the DAX (cpu direct access) state.  DAX state
	attempts to minimize software cache effects for both I/O and
	memory mappings of this file.  It requires a file system which
	has been configured to support DAX.

	DAX generally assumes all accesses are via cpu load / store
	instructions which can minimize overhead for small accesses, but
	may adversely affect cpu utilization for large transfers.

	File I/O is done directly to/from user-space buffers and memory
	mapped I/O may be performed with direct memory mappings that
	bypass kernel page cache.

	While the DAX property tends to result in data being transferred
	synchronously, it does not give the same guarantees of O_SYNC
	where data and the necessary metadata are transferred together.

	A DAX file may support being mapped with the MAP_SYNC flag,
	which enables a program to use CPU cache flush instructions to
	persist CPU store operations without an explicit fsync(2).  See
	mmap(2) for more information.

Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-04 08:49:39 -07:00
Vincent Cheng
d3f1cbd29f ptp: Add adjust_phase to ptp_clock_caps capability.
Add adjust_phase to ptp_clock_caps capability to allow
user to query if a PHC driver supports adjust phase with
ioctl PTP_CLOCK_GETCAPS command.

Signed-off-by: Vincent Cheng <vincent.cheng.xh@renesas.com>
Reviewed-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-02 16:31:45 -07:00
David S. Miller
115506fea4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:

====================
pull-request: bpf-next 2020-05-01 (v2)

The following pull-request contains BPF updates for your *net-next* tree.

We've added 61 non-merge commits during the last 6 day(s) which contain
a total of 153 files changed, 6739 insertions(+), 3367 deletions(-).

The main changes are:

1) pulled work.sysctl from vfs tree with sysctl bpf changes.

2) bpf_link observability, from Andrii.

3) BTF-defined map in map, from Andrii.

4) asan fixes for selftests, from Andrii.

5) Allow bpf_map_lookup_elem for SOCKMAP and SOCKHASH, from Jakub.

6) production cloudflare classifier as a selftes, from Lorenz.

7) bpf_ktime_get_*_ns() helper improvements, from Maciej.

8) unprivileged bpftool feature probe, from Quentin.

9) BPF_ENABLE_STATS command, from Song.

10) enable bpf_[gs]etsockopt() helpers for sock_ops progs, from Stanislav.

11) enable a bunch of common helpers for cg-device, sysctl, sockopt progs,
 from Stanislav.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01 17:02:27 -07:00
Po Liu
a51c328df3 net: qos: introduce a gate control flow action
Introduce a ingress frame gate control flow action.
Tc gate action does the work like this:
Assume there is a gate allow specified ingress frames can be passed at
specific time slot, and be dropped at specific time slot. Tc filter
chooses the ingress frames, and tc gate action would specify what slot
does these frames can be passed to device and what time slot would be
dropped.
Tc gate action would provide an entry list to tell how much time gate
keep open and how much time gate keep state close. Gate action also
assign a start time to tell when the entry list start. Then driver would
repeat the gate entry list cyclically.
For the software simulation, gate action requires the user assign a time
clock type.

Below is the setting example in user space. Tc filter a stream source ip
address is 192.168.0.20 and gate action own two time slots. One is last
200ms gate open let frame pass another is last 100ms gate close let
frames dropped. When the ingress frames have reach total frames over
8000000 bytes, the excessive frames will be dropped in that 200000000ns
time slot.

> tc qdisc add dev eth0 ingress

> tc filter add dev eth0 parent ffff: protocol ip \
	   flower src_ip 192.168.0.20 \
	   action gate index 2 clockid CLOCK_TAI \
	   sched-entry open 200000000 -1 8000000 \
	   sched-entry close 100000000 -1 -1

> tc chain del dev eth0 ingress chain 0

"sched-entry" follow the name taprio style. Gate state is
"open"/"close". Follow with period nanosecond. Then next item is internal
priority value means which ingress queue should put. "-1" means
wildcard. The last value optional specifies the maximum number of
MSDU octets that are permitted to pass the gate during the specified
time interval.
Base-time is not set will be 0 as default, as result start time would
be ((N + 1) * cycletime) which is the minimal of future time.

Below example shows filtering a stream with destination mac address is
10:00:80:00:00:00 and ip type is ICMP, follow the action gate. The gate
action would run with one close time slot which means always keep close.
The time cycle is total 200000000ns. The base-time would calculate by:

 1357000000000 + (N + 1) * cycletime

When the total value is the future time, it will be the start time.
The cycletime here would be 200000000ns for this case.

> tc filter add dev eth0 parent ffff:  protocol ip \
	   flower skip_hw ip_proto icmp dst_mac 10:00:80:00:00:00 \
	   action gate index 12 base-time 1357000000000 \
	   sched-entry close 200000000 -1 -1 \
	   clockid CLOCK_TAI

Signed-off-by: Po Liu <Po.Liu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01 16:08:19 -07:00
Stanislav Fomichev
beecf11bc2 bpf: Bpf_{g,s}etsockopt for struct bpf_sock_addr
Currently, bpf_getsockopt and bpf_setsockopt helpers operate on the
'struct bpf_sock_ops' context in BPF_PROG_TYPE_SOCK_OPS program.
Let's generalize them and make them available for 'struct bpf_sock_addr'.
That way, in the future, we can allow those helpers in more places.

As an example, let's expose those 'struct bpf_sock_addr' based helpers to
BPF_CGROUP_INET{4,6}_CONNECT hooks. That way we can override CC before the
connection is made.

v3:
* Expose custom helpers for bpf_sock_addr context instead of doing
  generic bpf_sock argument (as suggested by Daniel). Even with
  try_socket_lock that doesn't sleep we have a problem where context sk
  is already locked and socket lock is non-nestable.

v2:
* s/BPF_PROG_TYPE_CGROUP_SOCKOPT/BPF_PROG_TYPE_SOCK_OPS/

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200430233152.199403-1-sdf@google.com
2020-05-01 12:44:28 -07:00
Mauro Carvalho Chehab
883780af72 docs: networking: convert x25-iface.txt to ReST
Not much to be done here:

- add SPDX header;
- adjust title markup;
- remove a tail whitespace;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01 12:24:40 -07:00
Linus Torvalds
477bfeb9a3 drm fixes for 5.7-rc4
core:
 - EDID off by one DTD fix
 - DP mst write return code fix
 
 dma-buf:
 - fix SET_NAME ioctl uapi
 - doc fixes
 
 amdgpu:
 - Fix a green screen on resume issue
 - PM fixes for SR-IOV
  SDMA fix for navi
 - Renoir display fixes
 - Cursor and pageflip stuttering fixes
 - Misc additional display fixes
 - (uapi) Add additional DCC tiling flags for navi1x
 
 i915:
 - Fix selftest refcnt leak (Xiyu)
 - Fix gem vma lock (Chris)
 - Fix gt's i915_request.timeline acquire by checking if cacheline is valid (Chris)
 - Fix IRQ postinistall fault masks (Matt)
 
 qxl:
 - use after gree fix
 - fix lost kunmap
 - release leak fix
 
 virtio:
 - context destruction fix
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJeq5AAAAoJEAx081l5xIa+Id8P/0JLdvrRpHkJgTKwZq2ZDXYn
 fSfEuj5TUnIeRX4G6Z8KOuKEZwCNL3NdCfDhg3WGhpZ1MBoYEfOOOgejRKeS3UrG
 ziY+zoxaZIVFpS30TC5XiWO79RjW8dJDJogF5XgBcm26aX2j27dzzaHeJZtdAjrS
 HTKZgneYd3+B7Aa/UfZmQinHKXee0AykM/gJNbqPqp4FPSHdfEEwn72MmVHyTh1H
 zrtmzC4tVx7mHbUlwrZCPUJQcbxVuA9E0bmsk8K1xDtnI1r/lB5LldkvV/HjaI9x
 b5VEAMRoBjgZOqaXC+C/RLBIh8eP4drcKXfjt4MMCXIB6IpqEcr54wVnC7JTA4KF
 pCYa3UChnmYceqAW+Yz+37F7PbWvfWnA4YQTWR4JwG+42rbR4nc6pRAh2HHCLPGR
 M+ZiqSOYs0/ROdR2nzD2XsUjSYFksjLGCpyq2OqqOkhm6kbF8eZsL2Rxj9VPwHLk
 PJhVR/d3Kc7fQpgbEeDvf/4jFlkodNv1/FauIpWRmXtt4WJM/vKPWwx80WvekhNh
 IOqTrVW3XOZM2XYXVw/xSebBVMbs4+PtO1hRmaA5+yJwQNqU2rc6qLptUVxpib6/
 Gwxyp8Wb+7K4vIC8+5QrcKaYByiLBiaFNTIH5vo6vUv/FZHo9veZaiMqKxBptCRq
 LWONsaxPQqpdHSc/R25Q
 =4eA4
 -----END PGP SIGNATURE-----

Merge tag 'drm-fixes-2020-05-01' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Regular scheduled fixes for graphics. Nothing to extreme bunch of
  amdgpu fixes, i915 and qxl fixes, along with some misc ones.

  All seems to be progressing normally.

  core:
   - EDID off by one DTD fix
   - DP mst write return code fix

  dma-buf:
   - fix SET_NAME ioctl uapi
   - doc fixes

  amdgpu:
   - Fix a green screen on resume issue
   - PM fixes for SR-IOV SDMA fix for navi
   - Renoir display fixes
   - Cursor and pageflip stuttering fixes
   - Misc additional display fixes
   - (uapi) Add additional DCC tiling flags for navi1x

  i915:
   - Fix selftest refcnt leak (Xiyu)
   - Fix gem vma lock (Chris)
   - Fix gt's i915_request.timeline acquire by checking if cacheline is
     valid (Chris)
   - Fix IRQ postinistall fault masks (Matt)

  qxl:
   - use after gree fix
   - fix lost kunmap
   - release leak fix

  virtio:
   - context destruction fix"

* tag 'drm-fixes-2020-05-01' of git://anongit.freedesktop.org/drm/drm: (26 commits)
  dma-buf: fix documentation build warnings
  drm/qxl: qxl_release use after free
  drm/qxl: lost qxl_bo_kunmap_atomic_page in qxl_image_init_helper()
  drm/i915: Use proper fault mask in interrupt postinstall too
  drm/amd/display: Use cursor locking to prevent flip delays
  drm/amd/display: Update downspread percent to match spreadsheet for DCN2.1
  drm/amd/display: Defer cursor update around VUPDATE for all ASIC
  drm/amd/display: fix rn soc bb update
  drm/amd/display: check if REFCLK_CNTL register is present
  drm/amdgpu: bump version for invalidate L2 before SDMA IBs
  drm/amdgpu: invalidate L2 before SDMA IBs (v2)
  drm/amdgpu: add tiling flags from Mesa
  drm/amd/powerplay: avoid using pm_en before it is initialized revised
  Revert "drm/amd/powerplay: avoid using pm_en before it is initialized"
  drm/qxl: qxl_release leak in qxl_hw_surface_alloc()
  drm/qxl: qxl_release leak in qxl_draw_dirty_fb()
  drm/virtio: only destroy created contexts
  drm/dp_mst: Fix drm_dp_send_dpcd_write() return code
  drm/i915/gt: Check cacheline is valid before acquiring
  drm/i915/gem: Hold obj->vma.lock over for_each_ggtt_vma()
  ...
2020-05-01 11:01:51 -07:00
Song Liu
d46edd671a bpf: Sharing bpf runtime stats with BPF_ENABLE_STATS
Currently, sysctl kernel.bpf_stats_enabled controls BPF runtime stats.
Typical userspace tools use kernel.bpf_stats_enabled as follows:

  1. Enable kernel.bpf_stats_enabled;
  2. Check program run_time_ns;
  3. Sleep for the monitoring period;
  4. Check program run_time_ns again, calculate the difference;
  5. Disable kernel.bpf_stats_enabled.

The problem with this approach is that only one userspace tool can toggle
this sysctl. If multiple tools toggle the sysctl at the same time, the
measurement may be inaccurate.

To fix this problem while keep backward compatibility, introduce a new
bpf command BPF_ENABLE_STATS. On success, this command enables stats and
returns a valid fd. BPF_ENABLE_STATS takes argument "type". Currently,
only one type, BPF_STATS_RUN_TIME, is supported. We can extend the
command to support other types of stats in the future.

With BPF_ENABLE_STATS, user space tool would have the following flow:

  1. Get a fd with BPF_ENABLE_STATS, and make sure it is valid;
  2. Check program run_time_ns;
  3. Sleep for the monitoring period;
  4. Check program run_time_ns again, calculate the difference;
  5. Close the fd.

Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200430071506.1408910-2-songliubraving@fb.com
2020-05-01 10:36:32 -07:00
Felix Kuehling
0aeaaf64e6 drm/amdkfd: Fix comment formatting
Corrected two function names. Added a missing space.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-01 10:00:19 -04:00
Dave Airlie
e3dcd86b3b Merge tag 'amd-drm-fixes-5.7-2020-04-29' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.7-2020-04-29:

amdgpu:
- Fix a green screen on resume issue
- PM fixes for SR-IOV
- SDMA fix for navi
- Renoir display fixes
- Cursor and pageflip stuttering fixes
- Misc additional display fixes

UAPI:
- Add additional DCC tiling flags for navi1x
  Used by: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4697

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200429212008.4306-1-alexander.deucher@amd.com
2020-05-01 11:19:55 +10:00
Johannes Berg
d07dcf9aad netlink: add infrastructure to expose policies to userspace
Add, and use in generic netlink, helpers to dump out a netlink
policy to userspace, including all the range validation data,
nested policies etc.

This lets userspace discover what the kernel understands.

For families/commands other than generic netlink, the helpers
need to be used directly in an appropriate command, or we can
add some infrastructure (a new netlink family) that those can
register their policies with for introspection. I'm not that
familiar with non-generic netlink, so that's left out for now.

The data exposed to userspace also includes min and max length
for binary/string data, I've done that instead of letting the
userspace tools figure out whether min/max is intended based
on the type so that we can extend this later in the kernel, we
might want to just use the range data for example.

Because of this, I opted to not directly expose the NLA_*
values, even if some of them are already exposed via BPF, as
with min/max length we don't need to have different types here
for NLA_BINARY/NLA_MIN_LEN/NLA_EXACT_LEN, we just make them
all NL_ATTR_TYPE_BINARY with min/max length optionally set.

Similarly, we don't really need NLA_MSECS, and perhaps can
remove it in the future - but not if we encode it into the
userspace API now. It gets mapped to NL_ATTR_TYPE_U64 here.

Note that the exposing here corresponds to the strict policy
interpretation, and NLA_UNSPEC items are omitted entirely.
To get those, change them to NLA_MIN_LEN which behaves in
exactly the same way, but is exposed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 17:51:42 -07:00
Dave Airlie
c62098c991 A few resources-related fixes for qxl, some doc build warnings and ioctl
fixes for dma-buf, an off-by-one fix in edid, and a return code fix in
 DP-MST
 -----BEGIN PGP SIGNATURE-----
 
 iHQEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCXqrvVgAKCRDj7w1vZxhR
 xazeAPMFYoHj36L2cbr7lrUDER2s6cNdCpUGN0tuQx9fYjmQAP0RRCXpbfyFESvf
 MG5BBZvARO7OUtUCujogiPbmAVn1DQ==
 =r+Az
 -----END PGP SIGNATURE-----

Merge tag 'drm-misc-fixes-2020-04-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

A few resources-related fixes for qxl, some doc build warnings and ioctl
fixes for dma-buf, an off-by-one fix in edid, and a return code fix in
DP-MST

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200430153201.wx6of2b2gsoip7bk@gilmour.lan
2020-05-01 10:42:09 +10:00
Mauro Carvalho Chehab
06bfa47e72 docs: networking: convert timestamping.txt to ReST
- add SPDX header;
- add a document title;
- adjust titles and chapters, adding proper markups;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines where needed;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:56:38 -07:00
Dmitry Yakunin
b1f3e43dbf inet_diag: add support for cgroup filter
This patch adds ability to filter sockets based on cgroup v2 ID.
Such filter is helpful in ss utility for filtering sockets by
cgroup pathname.

Signed-off-by: Dmitry Yakunin <zeil@yandex-team.ru>
Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:54:02 -07:00
Dmitry Yakunin
6e3a401fc8 inet_diag: add cgroup id attribute
This patch adds cgroup v2 ID to common inet diag message attributes.
Cgroup v2 ID is kernfs ID (ino or ino+gen). This attribute allows filter
inet diag output by cgroup ID obtained by name_to_handle_at() syscall.
When net_cls or net_prio cgroup is activated this ID is equal to 1 (root
cgroup ID) for newly created sockets.

Some notes about this ID:

1) gets initialized in socket() syscall
2) incoming socket gets ID from listening socket
   (not during accept() syscall)
3) not changed when process get moved to another cgroup
4) can point to deleted cgroup (refcounting)

v2:
  - use CONFIG_SOCK_CGROUP_DATA instead if CONFIG_CGROUPS

v3:
  - fix attr size by using nla_total_size_64bit() (Eric Dumazet)
  - more detailed commit message (Konstantin Khlebnikov)

Signed-off-by: Dmitry Yakunin <zeil@yandex-team.ru>
Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Acked-By: Tejun Heo <tj@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:54:01 -07:00
Tom Lendacky
97f9ac3db6 crypto: ccp - Add support for SEV-ES to the PSP driver
To provide support for SEV-ES, the hypervisor must provide an area of
memory to the PSP. Once this Trusted Memory Region (TMR) is provided to
the PSP, the contents of this area of memory are no longer available to
the x86.

Update the PSP driver to allocate a 1MB region for the TMR that is 1MB
aligned and then provide it to the PSP through the SEV INIT command.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Reviewed-by: Brijesh Singh <brijesh.singh@amd.com>
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-04-30 15:19:33 +10:00
David S. Miller
323e395f19 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

The following patchset contains Netfilter updates for nf-next:

1) Add IPS_HW_OFFLOAD status bit, from Bodong Wang.

2) Remove 128-bit limit on the set element data area, rise it
   to 64 bytes.

3) Report EOPNOTSUPP for unsupported NAT types and flags.

4) Set up nft_nat flags from the control plane path.

5) Add helper functions to set up the nf_nat_range2 structure.

6) Add netmap support for nft_nat.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29 14:14:44 -07:00
Andrii Nakryiko
f2e10bff16 bpf: Add support for BPF_OBJ_GET_INFO_BY_FD for bpf_link
Add ability to fetch bpf_link details through BPF_OBJ_GET_INFO_BY_FD command.
Also enhance show_fdinfo to potentially include bpf_link type-specific
information (similarly to obj_info).

Also introduce enum bpf_link_type stored in bpf_link itself and expose it in
UAPI. bpf_link_tracing also now will store and return bpf_attach_type.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200429001614.1544-5-andriin@fb.com
2020-04-28 17:27:08 -07:00
Andrii Nakryiko
2d602c8cf4 bpf: Support GET_FD_BY_ID and GET_NEXT_ID for bpf_link
Add support to look up bpf_link by ID and iterate over all existing bpf_links
in the system. GET_FD_BY_ID code handles not-yet-ready bpf_link by checking
that its ID hasn't been set to non-zero value yet. Setting bpf_link's ID is
done as the very last step in finalizing bpf_link, together with installing
FD. This approach allows users of bpf_link in kernel code to not worry about
races between user-space and kernel code that hasn't finished attaching and
initializing bpf_link.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200429001614.1544-4-andriin@fb.com
2020-04-28 17:27:08 -07:00
Andrii Nakryiko
a3b80e1078 bpf: Allocate ID for bpf_link
Generate ID for each bpf_link using IDR, similarly to bpf_map and bpf_prog.
bpf_link creation, initialization, attachment, and exposing to user-space
through FD and ID is a complicated multi-step process, abstract it away
through bpf_link_primer and bpf_link_prime(), bpf_link_settle(), and
bpf_link_cleanup() internal API. They guarantee that until bpf_link is
properly attached, user-space won't be able to access partially-initialized
bpf_link either from FD or ID. All this allows to simplify bpf_link attachment
and error handling code.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200429001614.1544-3-andriin@fb.com
2020-04-28 17:27:08 -07:00
Oak Zeng
5bb4b78be9 drm/amdkfd: New IOCTL to allocate queue GWS (v2)
Add a new kfd ioctl to allocate queue GWS. Queue
GWS is released on queue destroy.

v2: re-introduce this API with the following fixes squashed in:
- drm/amdkfd: fix null pointer dereference on dev
- drm/amdkfd: Return proper error code for gws alloc API
- drm/amdkfd: Remove GPU ID in GWS queue creation

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-28 16:20:30 -04:00
Luben Tuikov
0bb5d5b03f drm/amdgpu: Move to a per-IB secure flag (TMZ)
Move from a per-CS secure flag (TMZ) to a per-IB
secure flag.

Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-28 16:20:29 -04:00
Alex Deucher
4baa8ff069 drm/amdgpu: move CS secure flag next the structs where it's used
So it's not mixed up with the CTX stuff.

Reviewed-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-28 16:20:29 -04:00
Luben Tuikov
e90c2b210b drm/amdgpu: add UAPI to create secure commands (v3)
Add a flag to the command submission IOCTL
structure which when present indicates that this
command submission should be treated as
secure. The kernel driver uses this flag to
determine whether the engine should be
transitioned to secure or unsecure, or the work
can be submitted to a secure queue depending on
the IP.

v3: the flag is now at command submission IOCTL

Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-28 16:20:28 -04:00
Alex Deucher
35ce006004 drm/amdgpu: add UAPI for creating encrypted buffers
Add a flag to the GEM_CREATE ioctl to create encrypted buffers.
Buffers with this flag set will be created with the TMZ bit set
in the PTEs or engines accessing them.  This is required in order
to properly access the data from the engines.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2020-04-28 16:20:28 -04:00
Marek Olšák
c938628c44 drm/amdgpu: add tiling flags from Mesa
DCC_INDEPENDENT_128B is needed for displayble DCC on gfx10.
SCANOUT is not needed by the kernel, but Mesa uses it.

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-28 15:29:27 -04:00
Marek Olšák
c57053725d drm/amdgpu: add tiling flags from Mesa
DCC_INDEPENDENT_128B is needed for displayble DCC on gfx10.
SCANOUT is not needed by the kernel, but Mesa uses it.

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-28 11:50:46 -04:00
Pablo Neira Ayuso
3ff7ddb135 netfilter: nft_nat: add netmap support
This patch allows you to NAT the network address prefix onto another
network address prefix, a.k.a. netmapping.

Userspace must specify the NF_NAT_RANGE_NETMAP flag and the prefix
address through the NFTA_NAT_REG_ADDR_MIN and NFTA_NAT_REG_ADDR_MAX
netlink attributes.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-04-28 00:53:54 +02:00
Richard Guy Briggs
9d2161bed4 audit: log audit netlink multicast bind and unbind
Log information about programs connecting to and disconnecting from the
audit netlink multicast socket. This is needed so that during
investigations a security officer can tell who or what had access to the
audit trail.  This helps to meet the FAU_SAR.2 requirement for Common
Criteria.

Here is the systemd startup event:
type=PROCTITLE msg=audit(2020-04-22 10:10:21.787:10) : proctitle=/init
type=SYSCALL msg=audit(2020-04-22 10:10:21.787:10) : arch=x86_64 syscall=bind success=yes exit=0 a0=0x19 a1=0x555f4aac7e90 a2=0xc a3=0x7ffcb792ff44 items=0 ppid=0 pid=1 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=systemd exe=/usr/lib/systemd/systemd subj=kernel key=(null)
type=UNKNOWN[1335] msg=audit(2020-04-22 10:10:21.787:10) : pid=1 uid=root auid=unset tty=(none) ses=unset subj=kernel comm=systemd exe=/usr/lib/systemd/systemd nl-mcgrp=1 op=connect res=yes

And events from the test suite that just uses close():
type=PROCTITLE msg=audit(2020-04-22 11:47:08.501:442) : proctitle=/usr/bin/perl -w amcast_joinpart/test
type=SYSCALL msg=audit(2020-04-22 11:47:08.501:442) : arch=x86_64 syscall=bind success=yes exit=0 a0=0x7 a1=0x563004378760 a2=0xc a3=0x0 items=0 ppid=815 pid=818 auid=root uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=ttyS0 ses=1 comm=perl exe=/usr/bin/perl subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)
type=UNKNOWN[1335] msg=audit(2020-04-22 11:47:08.501:442) : pid=818 uid=root auid=root tty=ttyS0 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 comm=perl exe=/usr/bin/perl nl-mcgrp=1 op=connect res=yes

type=UNKNOWN[1335] msg=audit(2020-04-22 11:47:08.501:443) : pid=818 uid=root auid=root tty=ttyS0 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 comm=perl exe=/usr/bin/perl nl-mcgrp=1 op=disconnect res=yes

And the events from the test suite using setsockopt with NETLINK_DROP_MEMBERSHIP:
type=PROCTITLE msg=audit(2020-04-22 11:39:53.291:439) : proctitle=/usr/bin/perl -w amcast_joinpart/test
type=SYSCALL msg=audit(2020-04-22 11:39:53.291:439) : arch=x86_64 syscall=bind success=yes exit=0 a0=0x7 a1=0x5560877c2d20 a2=0xc a3=0x0 items=0 ppid=772 pid=775 auid=root uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=ttyS0 ses=1 comm=perl exe=/usr/bin/perl subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)
type=UNKNOWN[1335] msg=audit(2020-04-22 11:39:53.291:439) : pid=775 uid=root auid=root tty=ttyS0 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 comm=perl exe=/usr/bin/perl nl-mcgrp=1 op=connect res=yes

type=PROCTITLE msg=audit(2020-04-22 11:39:53.292:440) : proctitle=/usr/bin/perl -w amcast_joinpart/test
type=SYSCALL msg=audit(2020-04-22 11:39:53.292:440) : arch=x86_64 syscall=setsockopt success=yes exit=0 a0=0x7 a1=SOL_NETLINK a2=0x2 a3=0x7ffc8366f000 items=0 ppid=772 pid=775 auid=root uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=ttyS0 ses=1 comm=perl exe=/usr/bin/perl subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)
type=UNKNOWN[1335] msg=audit(2020-04-22 11:39:53.292:440) : pid=775 uid=root auid=root tty=ttyS0 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 comm=perl exe=/usr/bin/perl nl-mcgrp=1 op=disconnect res=yes

Please see the upstream issue tracker at
  https://github.com/linux-audit/audit-kernel/issues/28
With the feature description at
  https://github.com/linux-audit/audit-kernel/wiki/RFE-Audit-Multicast-Socket-Join-Part
The testsuite support is at
  https://github.com/rgbriggs/audit-testsuite/compare/ghak28-mcast-part-join
  https://github.com/linux-audit/audit-testsuite/pull/93
And the userspace support patch is at
  https://github.com/linux-audit/audit-userspace/pull/114

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2020-04-27 18:49:31 -04:00
Linus Torvalds
869997be0e hyperv-fixes for 5.7-rc4
-----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCAAxFiEEIbPD0id6easf0xsudhRwX5BBoF4FAl6mwOETHHdlaS5saXVA
 a2VybmVsLm9yZwAKCRB2FHBfkEGgXrFLB/4yKsrl41WwYRbTKgiir576/LA0vGxQ
 cZjUQwkVv3S5/AfhvpwiGFV4dBV6j81KtNhRE6luaa3FBHObnjrx5tNqMw/P8a0j
 HZGZ68n4qE+OPVtTxj54s81iWIi9vgT/La92GPYhuXoiVPTd5zJ2lwY3so04BSFJ
 p30+RZFKNkTjNYZNZSHcoodr+js4Uws8JSn8OmpCJr8Gt+FJqkujQROG3HMKhJlk
 KlJlCJhV48tj/nlgcbGHBF0Yy5l8DVCaKIz+MiF5F/i+P8r0cErfyihc9Ene0/un
 LNFhIVGn8/MTi0CVrltcnur2qFH1qPCuLolKSpd/FKd6H2UDgK16XgAd
 =NJP/
 -----END PGP SIGNATURE-----

Merge tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull Hyper-V fixes from Wei Liu:

 - Two patches from Dexuan fixing suspension bugs

 - Three cleanup patches from Andy and Michael

* tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  hyper-v: Remove internal types from UAPI header
  hyper-v: Use UUID API for exporting the GUID
  x86/hyperv: Suspend/resume the VP assist page for hibernation
  Drivers: hv: Move AEOI determination to architecture dependent code
  Drivers: hv: vmbus: Fix Suspend-to-Idle for Generation-2 VM
2020-04-27 13:28:27 -07:00
Horatiu Vultur
3e54442c93 net: bridge: Add port attribute IFLA_BRPORT_MRP_RING_OPEN
This patch adds a new port attribute, IFLA_BRPORT_MRP_RING_OPEN, which allows
to notify the userspace when the port lost the continuite of MRP frames.

This attribute is set by kernel whenever the SW or HW detects that the ring is
being open or closed.

Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-27 11:40:25 -07:00
Horatiu Vultur
4714d13791 bridge: uapi: mrp: Add mrp attributes.
Add new nested netlink attribute to configure the MRP. These attributes are used
by the userspace to add/delete/configure MRP instances and by the kernel to
notify the userspace when the MRP ring gets open/closed. MRP nested attribute
has the following attributes:

IFLA_BRIDGE_MRP_INSTANCE - the parameter type is br_mrp_instance which contains
  the instance id, and the ifindex of the two ports. The ports can't be part of
  multiple instances. This is used to create/delete MRP instances.

IFLA_BRIDGE_MRP_PORT_STATE - the parameter type is u32. Which can be forwarding,
  blocking or disabled.

IFLA_BRIDGE_MRP_PORT_ROLE - the parameter type is br_mrp_port_role which
  contains the instance id and the role. The role can be primary or secondary.

IFLA_BRIDGE_MRP_RING_STATE - the parameter type is br_mrp_ring_state which
  contains the instance id and the state. The state can be open or closed.

IFLA_BRIDGE_MRP_RING_ROLE - the parameter type is br_mrp_ring_role which
  contains the instance id and the ring role. The role can be MRM or MRC.

IFLA_BRIDGE_MRP_START_TEST - the parameter type is br_mrp_start_test which
  contains the instance id, the interval at which to send the MRP_Test frames,
  how many test frames can be missed before declaring the ring open and the
  period which represent for how long to send the test frames.

Also add the file include/uapi/linux/mrp_bridge.h which defines all the types
used by MRP that are also needed by the userpace.

Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-27 11:40:25 -07:00
Mateusz Gorski
2d744ecf2b
ASoC: Intel: Skylake: Automatic DMIC format configuration according to information from NHLT
Automatically choose DMIC pipeline format configuration depending on
information included in NHLT.
Change the access rights of appropriate kcontrols to read-only in order
to prevent user interference.

Signed-off-by: Mateusz Gorski <mateusz.gorski@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200427132727.24942-4-mateusz.gorski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-27 16:02:26 +01:00
Mateusz Gorski
1b450791d5
ASoC: Intel: Multiple I/O PCM format support for pipe
For pipes supporting multiple input/output formats, kcontrol is
created and selection of pipe input and output configuration
is done based on control set.

If more than one configuration is supported, then this patch
allows user to select configuration of choice
using amixer settings.

Signed-off-by: Mateusz Gorski <mateusz.gorski@linux.intel.com>
Signed-off-by: Pavan K S <pavan.k.s@intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200427132727.24942-3-mateusz.gorski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-27 16:02:25 +01:00
Daniel Vetter
a5bff92eaa dma-buf: Fix SET_NAME ioctl uapi
The uapi is the same on 32 and 64 bit, but the number isn't. Everyone
who botched this please re-read:

https://www.kernel.org/doc/html/v5.4-preprc-cpu/ioctl/botching-up-ioctls.html

Also, the type argument for the ioctl macros is for the type the void
__user *arg pointer points at, which in this case would be the
variable-sized char[] of a 0 terminated string. So this was botched in
more than just the usual ways.

Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Chenbo Feng <fengc@google.com>
Cc: Greg Hackmann <ghackmann@google.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: minchan@kernel.org
Cc: surenb@google.com
Cc: jenhaochen@google.com
Cc: Martin Liu <liumartin@google.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Tested-by: Martin Liu <liumartin@google.com>
Reviewed-by: Martin Liu <liumartin@google.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
  [sumits: updated some checkpatch fixes, corrected author email]
Link: https://patchwork.freedesktop.org/patch/msgid/20200407133002.3486387-1-daniel.vetter@ffwll.ch
2020-04-27 16:29:41 +05:30
Bodong Wang
74f99482ea netfilter: nf_conntrack: add IPS_HW_OFFLOAD status bit
This bit indicates that the conntrack entry is offloaded to hardware
flow table. nf_conntrack entry will be tagged with [HW_OFFLOAD] if
it's offload to hardware.

cat /proc/net/nf_conntrack
	ipv4 2 tcp 6 \
	src=1.1.1.17 dst=1.1.1.16 sport=56394 dport=5001 \
	src=1.1.1.16 dst=1.1.1.17 sport=5001 dport=56394 [HW_OFFLOAD] \
	mark=0 zone=0 use=3

Note that HW_OFFLOAD/OFFLOAD/ASSURED are mutually exclusive.

Changelog:

* V1->V2:
- Remove check of lastused from stats. It was meant for cases such
  as removing driver module while traffic still running. Better to
  handle such cases from garbage collector.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-04-26 23:54:35 +02:00
Maciej Żenczykowski
71d1921477 bpf: add bpf_ktime_get_boot_ns()
On a device like a cellphone which is constantly suspending
and resuming CLOCK_MONOTONIC is not particularly useful for
keeping track of or reacting to external network events.
Instead you want to use CLOCK_BOOTTIME.

Hence add bpf_ktime_get_boot_ns() as a mirror of bpf_ktime_get_ns()
based around CLOCK_BOOTTIME instead of CLOCK_MONOTONIC.

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-04-26 09:43:05 -07:00
David S. Miller
d483389678 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Simple overlapping changes to linux/vermagic.h

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-25 20:18:53 -07:00
Linus Torvalds
ab51cac00e Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) Fix memory leak in netfilter flowtable, from Roi Dayan.

 2) Ref-count leaks in netrom and tipc, from Xiyu Yang.

 3) Fix warning when mptcp socket is never accepted before close, from
    Florian Westphal.

 4) Missed locking in ovs_ct_exit(), from Tonghao Zhang.

 5) Fix large delays during PTP synchornization in cxgb4, from Rahul
    Lakkireddy.

 6) team_mode_get() can hang, from Taehee Yoo.

 7) Need to use kvzalloc() when allocating fw tracer in mlx5 driver,
    from Niklas Schnelle.

 8) Fix handling of bpf XADD on BTF memory, from Jann Horn.

 9) Fix BPF_STX/BPF_B encoding in x86 bpf jit, from Luke Nelson.

10) Missing queue memory release in iwlwifi pcie code, from Johannes
    Berg.

11) Fix NULL deref in macvlan device event, from Taehee Yoo.

12) Initialize lan87xx phy correctly, from Yuiko Oshino.

13) Fix looping between VRF and XFRM lookups, from David Ahern.

14) etf packet scheduler assumes all sockets are full sockets, which is
    not necessarily true. From Eric Dumazet.

15) Fix mptcp data_fin handling in RX path, from Paolo Abeni.

16) fib_select_default() needs to handle nexthop objects, from David
    Ahern.

17) Use GFP_ATOMIC under spinlock in mac80211_hwsim, from Wei Yongjun.

18) vxlan and geneve use wrong nlattr array, from Sabrina Dubroca.

19) Correct rx/tx stats in bcmgenet driver, from Doug Berger.

20) BPF_LDX zero-extension is encoded improperly in x86_32 bpf jit, fix
    from Luke Nelson.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (100 commits)
  selftests/bpf: Fix a couple of broken test_btf cases
  tools/runqslower: Ensure own vmlinux.h is picked up first
  bpf: Make bpf_link_fops static
  bpftool: Respect the -d option in struct_ops cmd
  selftests/bpf: Add test for freplace program with expected_attach_type
  bpf: Propagate expected_attach_type when verifying freplace programs
  bpf: Fix leak in LINK_UPDATE and enforce empty old_prog_fd
  bpf, x86_32: Fix logic error in BPF_LDX zero-extension
  bpf, x86_32: Fix clobbering of dst for BPF_JSET
  bpf, x86_32: Fix incorrect encoding in BPF_LDX zero-extension
  bpf: Fix reStructuredText markup
  net: systemport: suppress warnings on failed Rx SKB allocations
  net: bcmgenet: suppress warnings on failed Rx SKB allocations
  macsec: avoid to set wrong mtu
  mac80211: sta_info: Add lockdep condition for RCU list usage
  mac80211: populate debugfs only after cfg80211 init
  net: bcmgenet: correct per TX/RX ring statistics
  net: meth: remove spurious copyright text
  net: phy: bcm84881: clear settings on link down
  chcr: Fix CPU hard lockup
  ...
2020-04-24 19:17:30 -07:00
Jakub Wilk
a33d314794 bpf: Fix reStructuredText markup
The patch fixes:
$ scripts/bpf_helpers_doc.py > bpf-helpers.rst
$ rst2man bpf-helpers.rst > bpf-helpers.7
bpf-helpers.rst:1105: (WARNING/2) Inline strong start-string without end-string.

Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20200422082324.2030-1-jwilk@jwilk.net
2020-04-24 17:01:26 -07:00
David Matlack
acd05785e4 kvm: add capability for halt polling
KVM_CAP_HALT_POLL is a per-VM capability that lets userspace
control the halt-polling time, allowing halt-polling to be tuned or
disabled on particular VMs.

With dynamic halt-polling, a VM's VCPUs can poll from anywhere from
[0, halt_poll_ns] on each halt. KVM_CAP_HALT_POLL sets the
upper limit on the poll time.

Signed-off-by: David Matlack <dmatlack@google.com>
Signed-off-by: Jon Cargille <jcargill@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Message-Id: <20200417221446.108733-1-jcargill@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-04-24 12:53:17 -04:00
Johannes Berg
155d7c7338 nl80211: allow client-only BIGTK support
The current NL80211_EXT_FEATURE_BEACON_PROTECTION feature flag
requires both AP and client support, add a new one called
NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT that enables only
support in client (and P2P-client) modes.

Link: https://lore.kernel.org/r/20200420140559.6ba704053a5a.Ifeb869fb0b48e52fe0cb9c15572b93ac8a924f8d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-04-24 12:33:41 +02:00
Johannes Berg
9dba48a6ec cfg80211: support multicast RX registration
For DPP, there's a need to receive multicast action frames,
but many drivers need a special filter configuration for this.

Support announcing from userspace in the management registration
that multicast RX is required, with an extended feature flag if
the driver handles this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20200417124013.c46238801048.Ib041d437ce0bff28a0c6d5dc915f68f1d8591002@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-04-24 12:33:41 +02:00
Jouni Malinen
4d797fce78 cfg80211: Unprotected Beacon frame RX indication
Extend cfg80211_rx_unprot_mlme_mgmt() to cover indication of unprotected
Beacon frames in addition to the previously used Deauthentication and
Disassociation frames. The Beacon frame case is quite similar, but has
couple of exceptions: this is used both with fully unprotected and also
incorrectly protected frames and there is a rate limit on the events to
avoid unnecessary flooding netlink events in case something goes wrong.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20200401142548.6990-1-jouni@codeaurora.org
[add missing kernel-doc]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-04-24 12:33:40 +02:00
Andy Shevchenko
f081bbb3fd hyper-v: Remove internal types from UAPI header
The uuid_le mistakenly comes to be an UAPI type. Since it's luckily not used by
Hyper-V APIs, we may replace with POD types, i.e. __u8 array.

Note, previously shared uuid_be had been removed from UAPI few releases ago.
This is a continuation of that process towards removing uuid_le one.

Note, there is no ABI change!

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200422131818.23088-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
2020-04-22 21:10:05 +01:00
Ingo Molnar
87cfeb1920 perf/core fixes and improvements:
kernel + tools/perf:
 
   Alexey Budankov:
 
   - Introduce CAP_PERFMON to kernel and user space.
 
 callchains:
 
   Adrian Hunter:
 
   - Allow using Intel PT to synthesize callchains for regular events.
 
   Kan Liang:
 
   - Stitch LBR records from multiple samples to get deeper backtraces,
     there are caveats, see the csets for details.
 
 perf script:
 
   Andreas Gerstmayr:
 
   - Add flamegraph.py script
 
 BPF:
 
   Jiri Olsa:
 
   - Synthesize bpf_trampoline/dispatcher ksymbol events.
 
 perf stat:
 
   Arnaldo Carvalho de Melo:
 
   - Honour --timeout for forked workloads.
 
   Stephane Eranian:
 
   - Force error in fallback on :k events, to avoid counting nothing when
     the user asks for kernel events but is not allowed to.
 
 perf bench:
 
   Ian Rogers:
 
   - Add event synthesis benchmark.
 
 tools api fs:
 
   Stephane Eranian:
 
  - Make xxx__mountpoint() more scalable
 
 libtraceevent:
 
   He Zhe:
 
   - Handle return value of asprintf.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCXp2LlQAKCRCyPKLppCJ+
 J95oAP0ZihVUhESv/gdeX0IDE5g6Rd2V6LNcRj+jb7gX9NlQkwD/UfS454WV1ftQ
 qTwrkKPzY/5Tm2cLuVE7r7fJ6naDHgU=
 =FHm4
 -----END PGP SIGNATURE-----

Merge tag 'perf-core-for-mingo-5.8-20200420' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core fixes and improvements from Arnaldo Carvalho de Melo:

kernel + tools/perf:

  Alexey Budankov:

  - Introduce CAP_PERFMON to kernel and user space.

callchains:

  Adrian Hunter:

  - Allow using Intel PT to synthesize callchains for regular events.

  Kan Liang:

  - Stitch LBR records from multiple samples to get deeper backtraces,
    there are caveats, see the csets for details.

perf script:

  Andreas Gerstmayr:

  - Add flamegraph.py script

BPF:

  Jiri Olsa:

  - Synthesize bpf_trampoline/dispatcher ksymbol events.

perf stat:

  Arnaldo Carvalho de Melo:

  - Honour --timeout for forked workloads.

  Stephane Eranian:

  - Force error in fallback on :k events, to avoid counting nothing when
    the user asks for kernel events but is not allowed to.

perf bench:

  Ian Rogers:

  - Add event synthesis benchmark.

tools api fs:

  Stephane Eranian:

 - Make xxx__mountpoint() more scalable

libtraceevent:

  He Zhe:

  - Handle return value of asprintf.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-04-22 14:08:28 +02:00
Mark Brown
d8e25a10ef
ASoC: SOF: Fix build
The recent batch of SOF changes failed to build on some x86
configurations including an allmodconfig, revert the commits:

e150ef4169  ASoC: SOF: Introduce extended manifest
3710914178  ASoC: SOF: ext_manifest: parse firmware version
7c024b948c  ASoC: SOF: ext_manifest: parse compiler version
9e72f13ee5  ASoC: SOF: ext_manifest: parse windows

to fix this.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-22 12:23:51 +01:00
Dave Airlie
774f1eeb18 Merge tag 'drm-intel-next-2020-04-17' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
UAPI Changes:

- drm/i915/perf: introduce global sseu pinning
  Allow userspace to request at perf/OA open full SSEU configuration
  on the system to be able to benchmark 3D workloads, at the cost of not
  being able to run media workloads. (Lionel)

  Userspace changes: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4021

- drm/i915/perf: add new open param to configure polling of OA buffer
  Let application choose how often the OA buffer should be checked on
  the CPU side for data availability for choosig between CPU overhead
  and realtime nature of data.

  Userspace changes: https://patchwork.freedesktop.org/series/74655/

  (i915 perf recorder is a tool to capture i915 perf data for viewing
  in GPUVis.)

- drm/i915/perf: remove generated code
  Removal of the machine generated perf/OA test configurations from i915.
  Used by Mesa v17.1-18.0, and shortly replaced by userspace supplied OA
  configurations. Removal of configs causes affected Mesa versions to
  fall back to earlier kernel behaviour (potentially missing metrics).
  (Lionel)

Cross-subsystem Changes:

- Backmerge of drm-next

- Includes tag 'topic/phy-compliance-2020-04-08' from
  git://anongit.freedesktop.org/drm/drm-misc

Driver Changes:

- Fix for GitLab issue #27: Support 5k tiled dual DP display on SKL (Ville)
- Fix https://github.com/thesofproject/linux/issues/1719: Broken audio after
  S3 resume on JSL platforms. (Kai)
- Add new Tigerlake PCI IDs (Swathi D.)
- Add missing Tigerlake W/As (Matt R.)
- Extended Wa_2006604312 to EHL (Matt A)
- Add DPCD link_rate quirk for Apple 15" MBP 2017 (v3) (Mario)
- Make Wa_14010229206 apply to all Tigerlake steppings (Swathi d)
- Extend hotplug detect retry on TypeC connectors to 5 seconds (Imre)
- Yield the timeslice if caught waiting on a user semaphore (Chris)
- Limit the residual W/A batch to Haswell due to instability on IVB/BYT (Chris)
- TBT AUX should use TC power well ops on Tigerlake (Matt R)
- Update PMINTRMSK holding fw to make it effective for RPS (Francisco, Chris)
- Add YUV444 packed format support for skl+ (Stanislav)
- Invalidate OA TLB when closing perf stream to avoid corruption (Umesh)
- HDCP: fix Ri prime check done during link check (Oliver)
- Rearm heartbeat on sysfs interval change (Chris)
- Fix crtc nv12 etc. plane bitmasks for DPMS off (Ville)
- Treat idling as a RPS downclock event (Chris)
- Leave rps->cur_freq on unpark (Chris)
- Ignore short pulse when EDP panel powered off (Anshuman)
- Keep the engine awake until the next jiffie, to avoid ping-pong on
  moderate load (Chris)
- Select the deepest available parking mode for rc6 on IVB (Chris)
- Optimizations to direct submission execlist path (Chris)
- Avoid NULL pointer dereference at intel_read_infoframe() (Chris)
- Fix mode private_flags comparison at atomic_check (Uma, Ville)
- Use forced codec wake on all gen9+ platforms (Kai)
- Schedule oa_config after modifying the contexts (Chris, Lionel)
- Explicitly reset both reg and context runtime on GPU reset (Chris)
- Don't enable DDI IO power on a TypeC port in TBT mode (Imre)
- Fixes to TGL, ICL and EHL vswing tables (Jose)
- Fill all the unused space in the GGTT (Chris, imre)
- Ignore readonly failures when updating relocs (Chris)
- Attempt to find free space earlier for non-pinned VMAs (Chris)
- Only wait for GPU activity before unbinding a GGTT fence (Chris)
- Avoid data loss on small userspace perf OA polling (Ashutosh)
- Watch out for unevictable nodes during eviction (Matt A)
- Reinforce the barrier after GTT updates for Ironlake (Chris)

- Convert various parts of driver to use drm_device based logging (Wambui, Jani)
- Avoid dereferencing already closed context for engine (Chris)
- Enable non-contiguous pipe fusing (Anshuman)
- Add HW readout of Gamma LUT on ICL (Swati S.)
- Use explicit flag to mark unreachable intel_context (Chris)
- Cancel a hung context if already closed (Chris)
- Add DP VSC/HDR SDP data structures and write routines (Gwan-gyeong)
- Report context-is-closed prior to pinning at execbuf (Chris)
- Mark timeline->cacheline as destroyed after rcu grace period (Chris)
- Avoid live-lock with i915_vma_parked() (Chris)
- Avoid gem_context->mutex for simple vma lookup (Chris)
- Rely on direct submission to the queue (Chris)
- Configure DSI transcoder to operate in TE GATE command mode (Vandita)
- Add DI vblank calculation for command mode (Vandita)
- Disable periodic command mode if programmed by GOP (Vandita)
- Use private flags to indicate TE in cmd mode (Vandita)
- Make fences a nice-to-have for FBC on GEN9+ (Jose)
- Fix work queuing issue with mixed virtual engine/physical engine
  submissions (Chris)
- Drop final few uses of drm_i915_private.engine (Chris)
- Return early after MISSING_CASE for write_dp_sdp (Chris)
- Include port sync state in the state dump (Ville)
- ELSP workaround switching back to a completed context (Chris)
- Include priority info in trace_ports (Chris)
- Allow for different modes of interruptible i915_active_wait (Chris)
- Split eb_vma into its own allocation (Chris)
- Don't read perf head/tail pointers outside critical section (Lionel)
- Pause CS flow before execlists reset (Chris)
- Make fence revocation unequivocal (Chris)
- Drop cached obj->bind_count (Chris)
- Peek at the next submission for error interrupts (Chris)
- Utilize rcu iteration of context engines (Chris)
- Keep a per-engine request pool for power management ops (Chris)
- Refactor port sync code into normal modeset flow (Ville)
- Check current i915_vma.pin_count status first on unbind (Chris)
- Free request pool from virtual engines (Chris)
- Flush all the reloc_gpu batch (Chris)
- Make exclusive awaits on i915_active optional and allow async waits (Chris)
- Wait until the context is finally retired before releasing engines (Chris)

- Prefer '%ps' for printing function symbol names (Chris)
- Allow setting generic data pointer on intel GT debugfs (Andi)
- Constify DP link computation code more (Ville)
- Simplify MST master transcoder computation (Ville)
- Move TRANS_DDI_FUNC_CTL2 programming where it belongs (Ville)
- Move icl_get_trans_port_sync_config() into the DDI code (Ville)
- Add definitions for VRR registers and bits (Aditya)
- Refactor hardware fence code (Chris)
- Start passing latency as parameter to WM calculation (Stanislav)
- Kernel selftest and debug tracing improvements (Matt A, Chris, Mika)
- Fixes to CI found corner cases and lockdep splats (Chris)
- Overall fixes and refactoring to GEM code (Chris)
- Overall fixes and refactoring to display code (Ville)
- GuC/HuC code improvements (Daniele, Michal Wa)
- Static code checker fixes (Nathan, Ville, Colin, Chris)
- Fix spelling mistake (Chen)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200417111548.GA15033@jlahtine-desk.ger.corp.intel.com
2020-04-22 07:03:57 +10:00
Linus Torvalds
189522da8b virtio: fixes, cleanups
Some bug fixes.
 Cleanup a couple of issues that surfaced meanwhile.
 Disable vhost on ARM with OABI for now - to be fixed
 fully later in the cycle or in the next release.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAl6d6ZgPHG1zdEByZWRo
 YXQuY29tAAoJECgfDbjSjVRpH3oH/0bJ6o+FiAi8xXgYqm9XXmswrZoZLahjyPay
 dA7Sz5nNKVtdSGH9o0wRdcekt0SOI3ilZSkv9nwt9ep/5YzC3brf2hry+nPvMTsA
 MhI3IAa7sK1vCXkftwOlx+SIeDfIwsqr+h4SCfMRxlIT0yAmOC8fl2ByT2dIbqnj
 dlzwczecHI9LPUEmRWiKH/4Tj5MPZN5IeFSIAE+nA/9cl5h4qVSfYtWD3Y4VQ82g
 Rv3mvVE+chaVbPxewaBZ8Y0Avti4tMyzsE0MY+dz5xfh+75hqMfygg//1osbEAbz
 SiL5dDcANe8Q+QOc/BxHdj4dqpqUp1ldV+3Lge9k4lWAGnsEMEk=
 =GZb2
 -----END PGP SIGNATURE-----

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio fixes and cleanups from Michael Tsirkin:

 - Some bug fixes

 - Cleanup a couple of issues that surfaced meanwhile

 - Disable vhost on ARM with OABI for now - to be fixed fully later in
   the cycle or in the next release.

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (24 commits)
  vhost: disable for OABI
  virtio: drop vringh.h dependency
  virtio_blk: add a missing include
  virtio-balloon: Avoid using the word 'report' when referring to free page hinting
  virtio-balloon: make virtballoon_free_page_report() static
  vdpa: fix comment of vdpa_register_device()
  vdpa: make vhost, virtio depend on menu
  vdpa: allow a 32 bit vq alignment
  drm/virtio: fix up for include file changes
  remoteproc: pull in slab.h
  rpmsg: pull in slab.h
  virtio_input: pull in slab.h
  remoteproc: pull in slab.h
  virtio-rng: pull in slab.h
  virtgpu: pull in uaccess.h
  tools/virtio: make asm/barrier.h self contained
  tools/virtio: define aligned attribute
  virtio/test: fix up after IOTLB changes
  vhost: Create accessors for virtqueues private_data
  vdpasim: Return status in vdpasim_get_status
  ...
2020-04-21 12:27:18 -07:00
Maheshwar Ajja
1ca3cb46a9 media: v4l2-ctrl: Add H264 profile and levels
Add H264 profile "Contrained High" and H264 levels "5.2",
"6.0", "6.1" and "6.2".

Signed-off-by: Maheshwar Ajja <majja@codeaurora.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-21 13:26:26 +02:00
Mauro Carvalho Chehab
af690f4593 firewire: firewire-cdev.hL get rid of a docs warning
This warning:

	./include/uapi/linux/firewire-cdev.h:312: WARNING: Inline literal start-string without end-string.

is because %FOO doesn't work if there's a parenthesis at the
string (as a parenthesis may indicate a function). So, mark
the literal block using the alternate ``FOO`` syntax.

Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/9b2501a41eba27ccdd4603cac2353c0efba7a90a.1586881715.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-20 15:45:41 -06:00
Mauro Carvalho Chehab
3ecad8c2c1 docs: fix broken references for ReST files that moved around
Some broken references happened due to shifting files around
and ReST renames. Those can't be auto-fixed by the script,
so let's fix them manually.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Link: https://lore.kernel.org/r/64773a12b4410aaf3e3be89e3ec7e34de2484eea.1586881715.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-20 15:45:03 -06:00
Mauro Carvalho Chehab
72ef5e52b3 docs: fix broken references to text files
Several references got broken due to txt to ReST conversion.

Several of them can be automatically fixed with:

	scripts/documentation-file-ref-check --fix

Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> # hwtracing/coresight/Kconfig
Reviewed-by: Paul E. McKenney <paulmck@kernel.org> # memory-barrier.txt
Acked-by: Alex Shi <alex.shi@linux.alibaba.com> # translations/zh_CN
Acked-by: Federico Vaga <federico.vaga@vaga.pv.it> # translations/it_IT
Acked-by: Marc Zyngier <maz@kernel.org> # kvm/arm64
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/6f919ddb83a33b5f2a63b6b5f0575737bb2b36aa.1586881715.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-20 15:35:59 -06:00
Andrew Lunn
eec517cdb4 net: Add IF_OPER_TESTING
RFC 2863 defines the operational state testing. Add support for this
state, both as a IF_LINK_MODE_ and __LINK_STATE_.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-20 12:43:24 -07:00
Sumit Garg
104edb94cc tee: add private login method for kernel clients
There are use-cases where user-space shouldn't be allowed to communicate
directly with a TEE device which is dedicated to provide a specific
service for a kernel client. So add a private login method for kernel
clients and disallow user-space to open-session using GP implementation
defined login method range: (0x80000000 - 0xBFFFFFFF).

Reviewed-by: Jerome Forissier <jerome@forissier.org>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2020-04-20 16:18:14 +02:00
Antony Antony
29e4276667 xfrm: fix error in comment
s/xfrm_state_offload/xfrm_user_offload/

Fixes: d77e38e612 ("xfrm: Add an IPsec hardware offloading API")
Signed-off-by: Antony Antony <antony@phenome.org>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2020-04-20 07:26:42 +02:00
Linus Torvalds
1340283741 flexible-array member convertion patches for 5.7-rc2
Hi Linus,
 
 Please, pull the following patches that replace zero-length arrays with
 flexible-array members.
 
 The current codebase makes use of the zero-length array language
 extension to the C90 standard, but the preferred mechanism to declare
 variable-length types such as these ones is a flexible array member[1][2],
 introduced in C99:
 
 struct foo {
         int stuff;
         struct boo array[];
 };
 
 By making use of the mechanism above, we will get a compiler warning
 in case the flexible array does not occur last in the structure, which
 will help us prevent some kind of undefined behavior bugs from being
 inadvertently introduced[3] to the codebase from now on.
 
 Also, notice that, dynamic memory allocations won't be affected by
 this change:
 
 "Flexible array members have incomplete type, and so the sizeof operator
 may not be applied. As a quirk of the original implementation of
 zero-length arrays, sizeof evaluates to zero."[1]
 
 sizeof(flexible-array-member) triggers a warning because flexible array
 members have incomplete type[1]. There are some instances of code in
 which the sizeof operator is being incorrectly/erroneously applied to
 zero-length arrays and the result is zero. Such instances may be hiding
 some bugs. So, this work (flexible-array member convertions) will also
 help to get completely rid of those sorts of issues.
 
 Notice that all of these patches have been baking in linux-next for
 quite a while now and, 238 more of these patches have already been
 merged into 5.7-rc1.
 
 There are a couple hundred more of these issues waiting to be addressed
 in the whole codebase.
 
 [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
 [2] https://github.com/KSPP/linux/issues/21
 [3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
 
 Thanks
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEkmRahXBSurMIg1YvRwW0y0cG2zEFAl6bccgACgkQRwW0y0cG
 2zFYvBAAl5tsoZsb6h5o7+XpWetl2BfA8lRelXWg1la9mF+Zqgqz8raubs+EbR8f
 65yz1lvoOl3jgeu1pQnx+AaDdG88Yu66BjPpFz/n8WWBjNC0z3M4Xcu+pFUanEzO
 QqkCPryj6RlqCYL/WlSCifo+ZOAeM7jlw/2kkX1ILVwjYItFPJIw+5IEPrM0ucN2
 tFp9H3iKOlA6PDuj4JO2xCnlUkL5aZk101qKqm41yZLLiS8zE8or4+s8Y7c7yDDP
 ajQ+uCzJpt/VCn6Iyri0oZ5hp+gI6jJ8ox1Vo0UCuWQ2RJ7E2FE5qhhctwB4UYsg
 +B6c1yckJqUoJ1c7Bbj00gsNMns3A7uLHFDOGBKQTjkRCn5+QV1wVvv5TJx2LJYL
 EBt07IfS0YAv0EBIbJyxqzmWCt0unKCu3i1KePp/FYqq291dpr39olUMCa1+Qg98
 v1VTGUlOvONy3v41tDx+Bfkt/0ebT8pogyenA51cjsD0bUZ3I/BsGxigXf0myLuy
 6yFjx7f6ng2I3uBDSZ+H/KUM51H6yhB9UCQuQCSqHDU3iEHvh7dDdumD3A9OJyLw
 nPC2HQhTOHVkbtg/E0KFh/ak1PoELCH3CR1Kgj/NSOG2Mz5tgtBfoxa+GwJTvJha
 9m5JrBQcT7qF7pGtZU0NDQICrhhvUEX/Hwo3QAtYInWPsV3S+5U=
 =GsIm
 -----END PGP SIGNATURE-----

Merge tag 'flexible-array-member-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull flexible-array member conversion from Gustavo Silva:
 "The current codebase makes use of the zero-length array language
  extension to the C90 standard, but the preferred mechanism to declare
  variable-length types such as these ones is a flexible array
  member[1][2], introduced in C99:

    struct foo {
        int stuff;
        struct boo array[];
    };

  By making use of the mechanism above, we will get a compiler warning
  in case the flexible array does not occur last in the structure, which
  will help us prevent some kind of undefined behavior bugs from being
  inadvertently introduced[3] to the codebase from now on.

  Also, notice that, dynamic memory allocations won't be affected by
  this change:

   "Flexible array members have incomplete type, and so the sizeof
    operator may not be applied. As a quirk of the original
    implementation of zero-length arrays, sizeof evaluates to zero."[1]

  sizeof(flexible-array-member) triggers a warning because flexible
  array members have incomplete type[1]. There are some instances of
  code in which the sizeof operator is being incorrectly/erroneously
  applied to zero-length arrays and the result is zero. Such instances
  may be hiding some bugs. So, this work (flexible-array member
  convertions) will also help to get completely rid of those sorts of
  issues.

  Notice that all of these patches have been baking in linux-next for
  quite a while now and, 238 more of these patches have already been
  merged into 5.7-rc1.

  There are a couple hundred more of these issues waiting to be
  addressed in the whole codebase"

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")

* tag 'flexible-array-member-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: (28 commits)
  xattr.h: Replace zero-length array with flexible-array member
  uapi: linux: fiemap.h: Replace zero-length array with flexible-array member
  uapi: linux: dlm_device.h: Replace zero-length array with flexible-array member
  tpm_eventlog.h: Replace zero-length array with flexible-array member
  ti_wilink_st.h: Replace zero-length array with flexible-array member
  swap.h: Replace zero-length array with flexible-array member
  skbuff.h: Replace zero-length array with flexible-array member
  sched: topology.h: Replace zero-length array with flexible-array member
  rslib.h: Replace zero-length array with flexible-array member
  rio.h: Replace zero-length array with flexible-array member
  posix_acl.h: Replace zero-length array with flexible-array member
  platform_data: wilco-ec.h: Replace zero-length array with flexible-array member
  memcontrol.h: Replace zero-length array with flexible-array member
  list_lru.h: Replace zero-length array with flexible-array member
  lib: cpu_rmap: Replace zero-length array with flexible-array member
  irq.h: Replace zero-length array with flexible-array member
  ihex.h: Replace zero-length array with flexible-array member
  igmp.h: Replace zero-length array with flexible-array member
  genalloc.h: Replace zero-length array with flexible-array member
  ethtool.h: Replace zero-length array with flexible-array member
  ...
2020-04-19 10:34:30 -07:00
Gustavo A. R. Silva
6e88abb862 uapi: linux: fiemap.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2020-04-18 15:44:56 -05:00
Gustavo A. R. Silva
d6cdad8703 uapi: linux: dlm_device.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2020-04-18 15:44:56 -05:00
Alexander Duyck
31ba514b2f virtio-balloon: Avoid using the word 'report' when referring to free page hinting
It can be confusing to have multiple features within the same driver that
are using the same verbage. As such this patch is creating a union of
free_page_report_cmd_id with free_page_hint_cmd_id so that we can clean-up
the userspace code a bit in terms of readability while maintaining the
functionality of legacy code.

Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Link: https://lore.kernel.org/r/20200415174318.13597.99753.stgit@localhost.localdomain
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-04-17 06:05:30 -04:00
Linus Torvalds
c8372665b4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) Disable RISCV BPF JIT builds when !MMU, from Björn Töpel.

 2) nf_tables leaves dangling pointer after free, fix from Eric Dumazet.

 3) Out of boundary write in __xsk_rcv_memcpy(), fix from Li RongQing.

 4) Adjust icmp6 message source address selection when routes have a
    preferred source address set, from Tim Stallard.

 5) Be sure to validate HSR protocol version when creating new links,
    from Taehee Yoo.

 6) CAP_NET_ADMIN should be sufficient to manage l2tp tunnels even in
    non-initial namespaces, from Michael Weiß.

 7) Missing release firmware call in mlx5, from Eran Ben Elisha.

 8) Fix variable type in macsec_changelink(), caught by KASAN. Fix from
    Taehee Yoo.

 9) Fix pause frame negotiation in marvell phy driver, from Clemens
    Gruber.

10) Record RX queue early enough in tun packet paths such that XDP
    programs will see the correct RX queue index, from Gilberto Bertin.

11) Fix double unlock in mptcp, from Florian Westphal.

12) Fix offset overflow in ARM bpf JIT, from Luke Nelson.

13) marvell10g needs to soft reset PHY when coming out of low power
    mode, from Russell King.

14) Fix MTU setting regression in stmmac for some chip types, from
    Florian Fainelli.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (101 commits)
  amd-xgbe: Use __napi_schedule() in BH context
  mISDN: make dmril and dmrim static
  net: stmmac: dwmac-sunxi: Provide TX and RX fifo sizes
  net: dsa: mt7530: fix tagged frames pass-through in VLAN-unaware mode
  tipc: fix incorrect increasing of link window
  Documentation: Fix tcp_challenge_ack_limit default value
  net: tulip: make early_486_chipsets static
  dt-bindings: net: ethernet-phy: add desciption for ethernet-phy-id1234.d400
  ipv6: remove redundant assignment to variable err
  net/rds: Use ERR_PTR for rds_message_alloc_sgs()
  net: mscc: ocelot: fix untagged packet drops when enslaving to vlan aware bridge
  selftests/bpf: Check for correct program attach/detach in xdp_attach test
  libbpf: Fix type of old_fd in bpf_xdp_set_link_opts
  libbpf: Always specify expected_attach_type on program load if supported
  xsk: Add missing check on user supplied headroom size
  mac80211: fix channel switch trigger from unknown mesh peer
  mac80211: fix race in ieee80211_register_hw()
  net: marvell10g: soft-reset the PHY when coming out of low power
  net: marvell10g: report firmware version
  net/cxgb4: Check the return from t4_query_params properly
  ...
2020-04-16 14:52:29 -07:00
Alexey Budankov
9807372822 capabilities: Introduce CAP_PERFMON to kernel and user space
Introduce the CAP_PERFMON capability designed to secure system
performance monitoring and observability operations so that CAP_PERFMON
can assist CAP_SYS_ADMIN capability in its governing role for
performance monitoring and observability subsystems.

CAP_PERFMON hardens system security and integrity during performance
monitoring and observability operations by decreasing attack surface that
is available to a CAP_SYS_ADMIN privileged process [2]. Providing the access
to system performance monitoring and observability operations under CAP_PERFMON
capability singly, without the rest of CAP_SYS_ADMIN credentials, excludes
chances to misuse the credentials and makes the operation more secure.

Thus, CAP_PERFMON implements the principle of least privilege for
performance monitoring and observability operations (POSIX IEEE 1003.1e:
2.2.2.39 principle of least privilege: A security design principle that
  states that a process or program be granted only those privileges
(e.g., capabilities) necessary to accomplish its legitimate function,
and only for the time that such privileges are actually required)

CAP_PERFMON meets the demand to secure system performance monitoring and
observability operations for adoption in security sensitive, restricted,
multiuser production environments (e.g. HPC clusters, cloud and virtual compute
environments), where root or CAP_SYS_ADMIN credentials are not available to
mass users of a system, and securely unblocks applicability and scalability
of system performance monitoring and observability operations beyond root
and CAP_SYS_ADMIN use cases.

CAP_PERFMON takes over CAP_SYS_ADMIN credentials related to system performance
monitoring and observability operations and balances amount of CAP_SYS_ADMIN
credentials following the recommendations in the capabilities man page [1]
for CAP_SYS_ADMIN: "Note: this capability is overloaded; see Notes to kernel
developers, below." For backward compatibility reasons access to system
performance monitoring and observability subsystems of the kernel remains
open for CAP_SYS_ADMIN privileged processes but CAP_SYS_ADMIN capability
usage for secure system performance monitoring and observability operations
is discouraged with respect to the designed CAP_PERFMON capability.

Although the software running under CAP_PERFMON can not ensure avoidance
of related hardware issues, the software can still mitigate these issues
following the official hardware issues mitigation procedure [2]. The bugs
in the software itself can be fixed following the standard kernel development
process [3] to maintain and harden security of system performance monitoring
and observability operations.

[1] http://man7.org/linux/man-pages/man7/capabilities.7.html
[2] https://www.kernel.org/doc/html/latest/process/embargoed-hardware-issues.html
[3] https://www.kernel.org/doc/html/latest/admin-guide/security-bugs.html

Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Acked-by: James Morris <jamorris@linux.microsoft.com>
Acked-by: Serge E. Hallyn <serge@hallyn.com>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Igor Lubashev <ilubashe@akamai.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: intel-gfx@lists.freedesktop.org
Cc: linux-doc@vger.kernel.org
Cc: linux-man@vger.kernel.org
Cc: linux-security-module@vger.kernel.org
Cc: selinux@vger.kernel.org
Link: http://lore.kernel.org/lkml/5590d543-82c6-490a-6544-08e6a5517db0@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-04-16 12:19:06 -03:00
Joonas Lahtinen
2b703bbda2 Merge drm/drm-next into drm-intel-next-queued
Backmerging in order to pull "topic/phy-compliance".

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2020-04-16 14:35:16 +03:00
Bard Liao
18aaab64fb
ASoC: SOF: topology: Get HDA rate and channels from topology
FW interface for HDA DAI parameters was extended with information on
sampling rate and channel count in version 3.16. Align kernel header
with the FW change. This change is backwards compatible. Old firmware
will ignore the values.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200415202816.934-23-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-16 00:23:17 +01:00
Bard Liao
c7fc96dfc4
ASoC: SOF: topology: Get ALH rate amd channels from topology
FW will need these params for synchronized playback over multiple
DAIs.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Sławomir Błauciak <slawomir.blauciak@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200415202816.934-21-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-16 00:23:15 +01:00
Pan Xiuli
a9a9cbf081
ASoC: SOF: make sof_ipc_cc_version to fixed length
Align struct sof_ipc_cc_version to firmware definition in SOF ABI 3.15.0.

The struct definition was changed due to errors in FW build.
The Cadence XCC compiler produces incorrect linkage section sizes, when a
variable length array is used in the compiler version struct. The firmware
definition was changed to a fixed 32 byte compiler description string.
This length covers all released firmware binaries and thus only a minor
ABI change is needed.

As the same structure is used in IPC messages between driver and firmware,
the kernel needs to be aligned to firmware change.

Signed-off-by: Pan Xiuli <xiuli.pan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200415202816.934-15-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-16 00:23:10 +01:00
Pan Xiuli
786d651687
ASoC: SOF: add probe support extend data
Share how many injection probe DMAs and how many probe points
driver can request from FW.
injection_dmas_max 0 means injection is not supported
probe_points_max 0 means whole probes subsystem in FW is not enabled
and not compiled in.

ABI version change to 3.14.0

Signed-off-by: Pan Xiuli <xiuli.pan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20200415202816.934-10-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-16 00:23:05 +01:00
Karol Trzcinski
7c024b948c
ASoC: SOF: ext_manifest: parse compiler version
The compiler version and description can be extracted from the
extended manifest content. This information known at build time
does not need to be provided in a mailbox.

Signed-off-by: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200415202816.934-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-16 00:23:04 +01:00
Karol Trzcinski
9e72f13ee5
ASoC: SOF: ext_manifest: parse windows
The window description can be extracted from the extended manifest
content. This information known at build time does not need to be
provided in a mailbox.

Signed-off-by: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200415202816.934-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-16 00:23:03 +01:00
Karol Trzcinski
3710914178
ASoC: SOF: ext_manifest: parse firmware version
The firmware version can be extracted from the extended
manifest content. This information known at build time
does not need to be provided in a mailbox.

Signed-off-by: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200415202816.934-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-16 00:23:02 +01:00
Karol Trzcinski
e150ef4169
ASoC: SOF: Introduce extended manifest
Extended manifest is a place to store build time known firmware
metadata, for example firmware version or used compiler description.
Given information is read on host side before firmware startup.
This part of output binary is located as a first structure in binary
file.
Extended manifest should be skipped in firmware loading routine.

Signed-off-by: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20200415202816.934-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-16 00:23:01 +01:00
Linus Torvalds
6cc9306b8f for-5.7-rc1-tag
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE8rQSAMVO+zA4DBdWxWXV+ddtWDsFAl6VskEACgkQxWXV+ddt
 WDurrhAAhkxlh6yrdZqr753DcpdEVAQhyHDsJ66GAKWuW8sn7ypTiZhNgKxvEGuz
 UhwtXTlzZ7K9/h3TsVeih2iqEj6oc8ick+Th+Wf/7s0jhUXDcWi2OqBjTnIiH2Za
 efrwGMiOEAHYqQ7tHjEbZiJGcQ2tE7+2Le4g3aFnv/kRT0jXDikzLTa/viMG73k5
 9llSm+GJYl2KQNcUPmxGKrwwiiV5c5xNCGuEuY4lw+3OVn1QU4rayZDB/5GxZ/nC
 72Efl9CxoDunBviys2NWxYTt/Ts3R/+yhnGX0kM6BovkN0bo1pA7HuWkADqYPnNN
 r8z8X/zFYi7jZBwpPq4alcHW2IaMC7UEseEyZHlj9ce8pK8MnHFlBtfBcUzbvFl5
 Wtt23AvAZ9CiQ40Sf5UBt6pliUQhr/BpBz88jatZ619ij1GLxeO++I5bIz3/YFQH
 UEP7okhoqpxgKLFGRcpxkw0ggOipp7isFyfss2qaRMPebmNMKnuuUoEy5BDlHs2f
 ewxbyuSUVXVBJMB4R6u77Nk5KLrTO67kfiCROaVKkzhYDESpbB4Trdl+kvzPSFb6
 p3NYpJoGnkOKngG/vg5MoQGOp1oi4h3RH2Ck1Yes7jmBgYLSCQokCUXkm52PGfId
 25P45yOzwS4W7sVFXsR3rygpexXlcNAIGG+2xtiw/AyFIQo5AZ4=
 =pkZ2
 -----END PGP SIGNATURE-----

Merge tag 'for-5.7-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "We have a few regressions and one fix for stable:

   - revert fsync optimization

   - fix lost i_size update

   - fix a space accounting leak

   - build fix, add back definition of a deprecated ioctl flag

   - fix search condition for old roots in relocation"

* tag 'for-5.7-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: re-instantiate the removed BTRFS_SUBVOL_CREATE_ASYNC definition
  btrfs: fix reclaim counter leak of space_info objects
  btrfs: make full fsyncs always operate on the entire file again
  btrfs: fix lost i_size update after cloning inline extent
  btrfs: check commit root generation in should_ignore_root
2020-04-14 11:51:30 -07:00
Eugene Syromiatnikov
34c51814b2 btrfs: re-instantiate the removed BTRFS_SUBVOL_CREATE_ASYNC definition
The commit 9c1036fdb1 ("btrfs: Remove BTRFS_SUBVOL_CREATE_ASYNC
support") breaks strace build with the kernel headers from git:

    btrfs.c: In function "btrfs_test_subvol_ioctls":
    btrfs.c:531:23: error: "BTRFS_SUBVOL_CREATE_ASYNC" undeclared (first use
    in this function)
       vol_args_v2.flags = BTRFS_SUBVOL_CREATE_ASYNC;

Moreover, it is improper to break UAPI, strace uses the definitions to
decode ioctls that are considered part of public API.

Restore the macro definition and put it under "#ifndef __KERNEL__"
in order to prevent inadvertent in-kernel usage.

Fixes: 9c1036fdb1 ("btrfs: Remove BTRFS_SUBVOL_CREATE_ASYNC support")
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2020-04-10 18:48:27 +02:00
Linus Torvalds
0906d8b975 IOMMU Updates for Linux v5.7
Including:
 
 	- ARM-SMMU support for the TLB range invalidation command in
 	  SMMUv3.2.
 
 	- ARM-SMMU introduction of command batching helpers to batch up
 	  CD and ATC invalidation.
 
 	- ARM-SMMU support for PCI PASID, along with necessary PCI
 	  symbol exports.
 
 	- Introduce a generic (actually rename an existing) IOMMU
 	  related pointer in struct device and reduce the IOMMU related
 	  pointers.
 
 	- Some fixes for the OMAP IOMMU driver to make it build on 64bit
 	  architectures.
 
 	- Various smaller fixes and improvements.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEr9jSbILcajRFYWYyK/BELZcBGuMFAl6MmlQACgkQK/BELZcB
 GuP9ug//QtyPYRYdO4ltD6mPvfB7V0qdXksJz+ZVbPOMvqUs1jr1FVYFH1HkOVu5
 mFD6OJuQQJrrGukXMERyVgDhUqNr+xHrkGS+X67NrOkUrguyvUfLYSU/GmOH/kdk
 w1Smp7pTcHHAMmxGyQWTSFa9jSxKes5ZYBo065Z3/SlcIcTTkbw7V87N3RPrlnCX
 s/K7CtSGnKJMpL9DVuNH27eqGlfiuIrQhj/vTQVSn1nF7TjaGKXaRXj+3fcUgrIt
 KAfflWiTJncMY6WLjz65iiUtUvgA2Mmgn3CKJnWjgECd70+NybLQ9OAvQO+A2H6s
 8XO9DsOOe8HFq/ljev1JGSw5LgB5Ip1RtSk7Ost6mkUFzLlaeTBJFQeHbECI9dne
 hksRYL4R8bwiQu+MkQe7HLa6TDb+asqjsayIO3M1oIpF+8mIz/oNOGCeP0cqSiuj
 lVMnblAWatrsZrf+AlxZKddIJWiduXoTjtpV64HTTvZeL4/g3kY0ykBXpS4xLj5V
 s0KvR6kjR1LYUgpe9jJ3CJTdIlU4MzSlrtq4CYFZvRa7rBLmk2cGsR1jiA3GTGpn
 bcqOQNgb5X1mpAzmOZb//pbjozgvCjQpQexyU4tRzs38yk+TK5OnOe5z4M1srHPY
 7dTZoUEpAcRm4K+JFQ3+yOtxRTsINYyFUL/Qt8ALbWy4hXluRGY=
 =nhuS
 -----END PGP SIGNATURE-----

Merge tag 'iommu-updates-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:

 - ARM-SMMU support for the TLB range invalidation command in SMMUv3.2

 - ARM-SMMU introduction of command batching helpers to batch up CD and
   ATC invalidation

 - ARM-SMMU support for PCI PASID, along with necessary PCI symbol
   exports

 - Introduce a generic (actually rename an existing) IOMMU related
   pointer in struct device and reduce the IOMMU related pointers

 - Some fixes for the OMAP IOMMU driver to make it build on 64bit
   architectures

 - Various smaller fixes and improvements

* tag 'iommu-updates-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (39 commits)
  iommu: Move fwspec->iommu_priv to struct dev_iommu
  iommu/virtio: Use accessor functions for iommu private data
  iommu/qcom: Use accessor functions for iommu private data
  iommu/mediatek: Use accessor functions for iommu private data
  iommu/renesas: Use accessor functions for iommu private data
  iommu/arm-smmu: Use accessor functions for iommu private data
  iommu/arm-smmu: Refactor master_cfg/fwspec usage
  iommu/arm-smmu-v3: Use accessor functions for iommu private data
  iommu: Introduce accessors for iommu private data
  iommu/arm-smmu: Fix uninitilized variable warning
  iommu: Move iommu_fwspec to struct dev_iommu
  iommu: Rename struct iommu_param to dev_iommu
  iommu/tegra-gart: Remove direct access of dev->iommu_fwspec
  drm/msm/mdp5: Remove direct access of dev->iommu_fwspec
  ACPI/IORT: Remove direct access of dev->iommu_fwspec
  iommu: Define dev_iommu_fwspec_get() for !CONFIG_IOMMU_API
  iommu/virtio: Reject IOMMU page granule larger than PAGE_SIZE
  iommu/virtio: Fix freeing of incomplete domains
  iommu/virtio: Fix sparse warning
  iommu/vt-d: Add build dependency on IOASID
  ...
2020-04-08 11:00:00 -07:00
Linus Torvalds
9bb715260e virtio: fixes, vdpa
Some bug fixes.
 The new vdpa subsystem with two first drivers.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAl6MS7wPHG1zdEByZWRo
 YXQuY29tAAoJECgfDbjSjVRpGp8H/2H49Gya1cfVbGU13qgmBSQqQXC8hS3iNLuG
 ltRgU+jafJT//kvkdm3/DUzfK3eRUWUfqZLKEbAQDtMY0OGHi/KGEBYVLDde7Zxt
 Lg4VnwBhkYDR/f01ZZDbHxzj9JAr83i28nILjLIqf3a1BX4zf203+ZE0/JM8a7wL
 dOPoH7NAfyz5ul2F67bR1IOF8vC6TidpavzR2+HC/MocHYXb6Bgfvt+i4EcrfuMf
 9lnBfajgklKr9sNJniwvvR1pWVg+YyG3VeC6T8tIC/xzbCmIoNT+5b3q2XPSIHq1
 EuQTeXH9CBFXS0qcFlq2ktR1xd1Lx95hKwZpqLwLFDmfgjhV2QU=
 =/84P
 -----END PGP SIGNATURE-----

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:

 - Some bug fixes

 - The new vdpa subsystem with two first drivers

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio-balloon: Revert "virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM"
  vdpa: move to drivers/vdpa
  virtio: Intel IFC VF driver for VDPA
  vdpasim: vDPA device simulator
  vhost: introduce vDPA-based backend
  virtio: introduce a vDPA based transport
  vDPA: introduce vDPA bus
  vringh: IOTLB support
  vhost: factor out IOTLB
  vhost: allow per device message handler
  vhost: refine vhost and vringh kconfig
  virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
  virtio-net: Introduce hash report feature
  virtio-net: Introduce RSS receive steering feature
  virtio-net: Introduce extended RSC feature
  tools/virtio: option to build an out of tree module
2020-04-08 10:51:53 -07:00
Linus Torvalds
9ebe5422ad Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "An update to the Goodix touchscreen driver to enable it work properly
  on various Bay Trail and Cherry Trail devices, and a few other
  assorted changes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (26 commits)
  Input: update SPDX tag for input-event-codes.h
  Input: i8042 - add Acer Aspire 5738z to nomux list
  Input: goodix - fix compilation when ACPI support is disabled
  dt-bindings: touchscreen: Convert edt-ft5x06 to json-schema
  Input: of_touchscreen - explicitly choose axis
  Input: goodix - support gt9147 touchpanel
  dt-bindings: touchscreen: goodix: support of gt9147
  Input: goodix - add support for Goodix GT917S
  Input: goodix - use string-based chip ID
  dt-bindings: input: touchscreen: add compatible string for Goodix GT917S
  Input: goodix - add support for more then one touch-key
  Input: goodix - fix spurious key release events
  Input: goodix - try to reset the controller if the i2c-test fails
  Input: goodix - restore config on resume if necessary
  Input: goodix - make goodix_send_cfg() take a raw buffer as argument
  Input: goodix - add minimum firmware size check
  Input: goodix - save a copy of the config from goodix_read_config()
  Input: goodix - move defines to above struct goodix_ts_data declaration
  Input: goodix - add support for controlling the IRQ pin through ACPI methods
  Input: goodix - add support for getting IRQ + reset GPIOs on Bay Trail devices
  ...
2020-04-07 20:20:12 -07:00
David S. Miller
c2c1128902 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net, they are:

1) Fix spurious overlap condition in the rbtree tree, from Stefano Brivio.

2) Fix possible uninitialized pointer dereference in nft_lookup.

3) IDLETIMER v1 target matches the Android layout, from
   Maciej Zenczykowski.

4) Dangling pointer in nf_tables_set_alloc_name, from Eric Dumazet.

5) Fix RCU warning splat in ipset find_set_type(), from Amol Grover.

6) Report EOPNOTSUPP on unsupported set flags and object types in sets.

7) Add NFT_SET_CONCAT flag to provide consistent error reporting
   when users defines set with ranges in concatenations in old kernels.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-07 18:08:06 -07:00
Linus Torvalds
63bef48fd6 Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:

 - a lot more of MM, quite a bit more yet to come: (memcg, pagemap,
   vmalloc, pagealloc, migration, thp, ksm, madvise, virtio,
   userfaultfd, memory-hotplug, shmem, rmap, zswap, zsmalloc, cleanups)

 - various other subsystems (procfs, misc, MAINTAINERS, bitops, lib,
   checkpatch, epoll, binfmt, kallsyms, reiserfs, kmod, gcov, kconfig,
   ubsan, fault-injection, ipc)

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (158 commits)
  ipc/shm.c: make compat_ksys_shmctl() static
  ipc/mqueue.c: fix a brace coding style issue
  lib/Kconfig.debug: fix a typo "capabilitiy" -> "capability"
  ubsan: include bug type in report header
  kasan: unset panic_on_warn before calling panic()
  ubsan: check panic_on_warn
  drivers/misc/lkdtm/bugs.c: add arithmetic overflow and array bounds checks
  ubsan: split "bounds" checker from other options
  ubsan: add trap instrumentation option
  init/Kconfig: clean up ANON_INODES and old IO schedulers options
  kernel/gcov/fs.c: replace zero-length array with flexible-array member
  gcov: gcc_3_4: replace zero-length array with flexible-array member
  gcov: gcc_4_7: replace zero-length array with flexible-array member
  kernel/kmod.c: fix a typo "assuems" -> "assumes"
  reiserfs: clean up several indentation issues
  kallsyms: unexport kallsyms_lookup_name() and kallsyms_on_each_symbol()
  samples/hw_breakpoint: drop use of kallsyms_lookup_name()
  samples/hw_breakpoint: drop HW_BREAKPOINT_R when reporting writes
  fs/binfmt_elf.c: don't free interpreter's ELF pheaders on common path
  fs/binfmt_elf.c: allocate less for static executable
  ...
2020-04-07 14:11:54 -07:00
Linus Torvalds
762a9f2f01 This pull request contains the following changes for UML:
- New mode for time travel, external via virtio
 - Fixes for ubd to make sure no requests can get lost
 - Fixes for vector networking
 - Allow CONFIG_STATIC_LINK only when possible
 - Minor cleanups and fixes
 -----BEGIN PGP SIGNATURE-----
 
 iQJKBAABCAA0FiEEdgfidid8lnn52cLTZvlZhesYu8EFAl6MbGYWHHJpY2hhcmRA
 c2lnbWEtc3Rhci5hdAAKCRBm+VmF6xi7wSY2D/4k1kb3A5pZ6OEXCkKmRU63j0RC
 na0bsa4lztMuABgOWKXP09cqL2ZhJ1rVVRUMV7jgVFKj7rKkJHHGHgdBeEkXOcb8
 skOVxln1X/i3T9q9QQ4ofkSk0U8gHCZA3pqrn7TFI9ZmrosOUYwhQKkqcNHvSfPc
 XEjKUx1GCS+wA0mw5yLyDZqDGkZgMNSmNezR7Oq3EB9wi8K2n6Racn6//S/uqiS6
 I8HHE7R2ci0YfflP+xE8i1qg8/TY2wj2oCP33b9o/XefyyNSndVj7KQUI3KRBmSh
 M0k2sbOqegVzSH/l5YFIZ7zbDcqkYeGWopPIuYWo3en7ZmfJfP2KD31c8gPOuElC
 HuUvQyS1VDpLn6JBa8Y456e8IrKl/QquXfZDc2qG5HYTR6g9nv9y8VNtx4dSQ+sB
 AfgErKofx7x2JQNRfg+0BYKgw/MawGAjiSZm5qVNfvFM3YDWZSUZ9gEAcX6qto/z
 P+66Zrhatdt9TaQdy9vbQKDWSJk9ood2mQYU0JJSfzgsotWslyvCsc6ANtwfkc7R
 sLxnsa6EA7CYogbMJ7wRxD5spCNZrRZvepHhe5uft/nWG/qGM1jy7Vk16Or03sVH
 sScIp6m+yDyhhEjJOT8Mq6WbM3mIfILMb42FyDJQIpJ9JcXSxzbiZu7RSK38yoEG
 +WYGOYdTGgzxIWsRmQ==
 =WVcL
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

Pull UML updates from Richard Weinberger:

 - New mode for time travel, external via virtio

 - Fixes for ubd to make sure no requests can get lost

 - Fixes for vector networking

 - Allow CONFIG_STATIC_LINK only when possible

 - Minor cleanups and fixes

* tag 'for-linus-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: Remove some unnecessary NULL checks in vector_user.c
  um: vector: Avoid NULL ptr deference if transport is unset
  um: Make CONFIG_STATIC_LINK actually static
  um: Implement cpu_relax() as ndelay(1) for time-travel
  um: Implement ndelay/udelay in time-travel mode
  um: Implement time-travel=ext
  um: virtio: Implement VHOST_USER_PROTOCOL_F_INBAND_NOTIFICATIONS
  um: time-travel: Rewrite as an event scheduler
  um: Move timer-internal.h to non-shared
  hostfs: Use kasprintf() instead of fixed buffer formatting
  um: falloc.h needs to be directly included for older libc
  um: ubd: Retry buffer read on any kind of error
  um: ubd: Prevent buffer overrun on command completion
  um: Fix overlapping ELF segments when statically linked
  um: Delete never executed timer
  um: Don't overwrite ethtool driver version
  um: Fix len of file in create_pid_file
  um: Don't use console_drivers directly
  um: Cleanup CONFIG_IOSCHED_CFQ
2020-04-07 12:36:09 -07:00
Shaohua Li
e06f1e1dd4 userfaultfd: wp: enabled write protection in userfaultfd API
Now it's safe to enable write protection in userfaultfd API

Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Bobby Powers <bobbypowers@gmail.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Denis Plotnikov <dplotnikov@virtuozzo.com>
Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com>
Cc: Martin Cracauer <cracauer@cons.org>
Cc: Marty McFadden <mcfadden8@llnl.gov>
Cc: Maya Gokhale <gokhale2@llnl.gov>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Link: http://lkml.kernel.org/r/20200220163112.11409-15-peterx@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07 10:43:39 -07:00
Andrea Arcangeli
63b2d4174c userfaultfd: wp: add the writeprotect API to userfaultfd ioctl
Introduce the new uffd-wp APIs for userspace.

Firstly, we'll allow to do UFFDIO_REGISTER with write protection tracking
using the new UFFDIO_REGISTER_MODE_WP flag.  Note that this flag can
co-exist with the existing UFFDIO_REGISTER_MODE_MISSING, in which case the
userspace program can not only resolve missing page faults, and at the
same time tracking page data changes along the way.

Secondly, we introduced the new UFFDIO_WRITEPROTECT API to do page level
write protection tracking.  Note that we will need to register the memory
region with UFFDIO_REGISTER_MODE_WP before that.

[peterx@redhat.com: write up the commit message]
[peterx@redhat.com: remove useless block, write commit message, check against
 VM_MAYWRITE rather than VM_WRITE when register]
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Cc: Bobby Powers <bobbypowers@gmail.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Denis Plotnikov <dplotnikov@virtuozzo.com>
Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Kirill A . Shutemov" <kirill@shutemov.name>
Cc: Martin Cracauer <cracauer@cons.org>
Cc: Marty McFadden <mcfadden8@llnl.gov>
Cc: Maya Gokhale <gokhale2@llnl.gov>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Shaohua Li <shli@fb.com>
Link: http://lkml.kernel.org/r/20200220163112.11409-14-peterx@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07 10:43:39 -07:00
Andrea Arcangeli
72981e0e7b userfaultfd: wp: add UFFDIO_COPY_MODE_WP
This allows UFFDIO_COPY to map pages write-protected.

[peterx@redhat.com: switch to VM_WARN_ON_ONCE in mfill_atomic_pte; add brackets
 around "dst_vma->vm_flags & VM_WRITE"; fix wordings in comments and
 commit messages]
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Bobby Powers <bobbypowers@gmail.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Denis Plotnikov <dplotnikov@virtuozzo.com>
Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Kirill A . Shutemov" <kirill@shutemov.name>
Cc: Martin Cracauer <cracauer@cons.org>
Cc: Marty McFadden <mcfadden8@llnl.gov>
Cc: Maya Gokhale <gokhale2@llnl.gov>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Shaohua Li <shli@fb.com>
Link: http://lkml.kernel.org/r/20200220163112.11409-6-peterx@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07 10:43:39 -07:00
Alexander Duyck
b0c504f154 virtio-balloon: add support for providing free page reports to host
Add support for the page reporting feature provided by virtio-balloon.
Reporting differs from the regular balloon functionality in that is is
much less durable than a standard memory balloon.  Instead of creating a
list of pages that cannot be accessed the pages are only inaccessible
while they are being indicated to the virtio interface.  Once the
interface has acknowledged them they are placed back into their respective
free lists and are once again accessible by the guest system.

Unlike a standard balloon we don't inflate and deflate the pages.  Instead
we perform the reporting, and once the reporting is completed it is
assumed that the page has been dropped from the guest and will be faulted
back in the next time the page is accessed.

Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Nitesh Narayan Lal <nitesh@redhat.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Pankaj Gupta <pagupta@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Wang <wei.w.wang@intel.com>
Cc: Yang Zhang <yang.zhang.wz@gmail.com>
Cc: wei qi <weiqi4@huawei.com>
Link: http://lkml.kernel.org/r/20200211224657.29318.68624.stgit@localhost.localdomain
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07 10:43:39 -07:00
Pablo Neira Ayuso
ef516e8625 netfilter: nf_tables: reintroduce the NFT_SET_CONCAT flag
Stefano originally proposed to introduce this flag, users hit EOPNOTSUPP
in new binaries with old kernels when defining a set with ranges in
a concatenation.

Fixes: f3a2181e16 ("netfilter: nf_tables: Support for sets with multiple ranged fields")
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-04-07 18:23:04 +02:00
Dmitry Torokhov
cd510679f4 Merge branch 'next' into for-linus
Prepare input updates for 5.7 merge window.
2020-04-06 20:56:50 -07:00
Linus Torvalds
b6ff10700d \n
-----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAl6LFJ0ACgkQnJ2qBz9k
 QNkSUQgAzwaescnHeVTF7/Zg9Uj2xrfrTJZ1E+Mn9qnd/0/z/asVV+RKfY7Gnu7h
 g19inDI4ZESFz2gWz4jwJD1c2/yMZb8vnae4ye3dtCv2yjG/0JxCeue6vjwsWqmO
 4jbSgk8YNQqzwEFVMzNp43ZJr3CFooLCIsJcL8q4yYk8Kt4pDUPmQ1vBvAc6k9vK
 BKMBvp926tbomP27nq0n0CjvHy7ipDGMl4H6i4vBxHRfbDPih2x9VEklK3JatC1n
 4AKS6IYJrkZVdOjli+DrResbcWxyT4db5tPio5MU0RDnVhNZT2cHyNVXf5EpRJqP
 72pa7gfPu1Rx1+tU8bDR/daSveou2A==
 =fkCV
 -----END PGP SIGNATURE-----

Merge tag 'fsnotify_for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull fsnotify updates from Jan Kara:
 "This implements the fanotify FAN_DIR_MODIFY event.

  This event reports the name in a directory under which a change
  happened and together with the directory filehandle and fstatat()
  allows reliable and efficient implementation of directory
  synchronization"

* tag 'fsnotify_for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fanotify: Fix the checks in fanotify_fsid_equal
  fanotify: report name info for FAN_DIR_MODIFY event
  fanotify: record name info for FAN_DIR_MODIFY event
  fanotify: Drop fanotify_event_has_fid()
  fanotify: prepare to report both parent and child fid's
  fanotify: send FAN_DIR_MODIFY event flavor with dir inode and name
  fanotify: divorce fanotify_path_event and fanotify_fid_event
  fanotify: Store fanotify handles differently
  fanotify: Simplify create_fd()
  fanotify: fix merging marks masks with FAN_ONDIR
  fanotify: merge duplicate events on parent and child
  fsnotify: replace inode pointer with an object id
  fsnotify: simplify arguments passing to fsnotify_parent()
  fsnotify: use helpers to access data by data_type
  fsnotify: funnel all dirent events through fsnotify_name()
  fsnotify: factor helpers fsnotify_dentry() and fsnotify_file()
  fsnotify: tidy up FS_ and FAN_ constants
2020-04-06 08:58:42 -07:00
Maciej Żenczykowski
bc9fe6143d netfilter: xt_IDLETIMER: target v1 - match Android layout
Android has long had an extension to IDLETIMER to send netlink
messages to userspace, see:
  https://android.googlesource.com/kernel/common/+/refs/heads/android-mainline/include/uapi/linux/netfilter/xt_IDLETIMER.h#42
Note: this is idletimer target rev 1, there is no rev 0 in
the Android common kernel sources, see registration at:
  https://android.googlesource.com/kernel/common/+/refs/heads/android-mainline/net/netfilter/xt_IDLETIMER.c#483

When we compare that to upstream's new idletimer target rev 1:
  https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git/tree/include/uapi/linux/netfilter/xt_IDLETIMER.h#n46

We immediately notice that these two rev 1 structs are the
same size and layout, and that while timer_type and send_nl_msg
are differently named and serve a different purpose, they're
at the same offset.

This makes them impossible to tell apart - and thus one cannot
know in a mixed Android/vanilla environment whether one means
timer_type or send_nl_msg.

Since this is iptables/netfilter uapi it introduces a problem
between iptables (vanilla vs Android) userspace and kernel
(vanilla vs Android) if the two don't match each other.

Additionally when at some point in the future Android picks up
5.7+ it's not at all clear how to resolve the resulting merge
conflict.

Furthermore, since upgrading the kernel on old Android phones
is pretty much impossible there does not seem to be an easy way
out of this predicament.

The only thing I've been able to come up with is some super
disgusting kernel version >= 5.7 check in the iptables binary
to flip between different struct layouts.

By adding a dummy field to the vanilla Linux kernel header file
we can force the two structs to be compatible with each other.

Long term I think I would like to deprecate send_nl_msg out of
Android entirely, but I haven't quite been able to figure out
exactly how we depend on it.  It seems to be very similar to
sysfs notifications but with some extra info.

Currently it's actually always enabled whenever Android uses
the IDLETIMER target, so we could also probably entirely
remove it from the uapi in favour of just always enabling it,
but again we can't upgrade old kernels already in the field.

(Also note that this doesn't change the structure's size,
as it is simply fitting into the pre-existing padding, and
that since 5.7 hasn't been released yet, there's still time
to make this uapi visible change)

Cc: Manoj Basapathi <manojbm@codeaurora.org>
Cc: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-04-05 23:26:37 +02:00
Linus Torvalds
c48b07226b perf updates all over the place:
core:
 
    - Support for cgroup tracking in samples to allow cgroup based
      analysis
 
  tools:
 
    - Support for cgroup analysis
 
    - Commandline option and hotkey for perf top to change the sort order
 
    - A set of fixes all over the place
 
    - Various build system related improvements
 
    - Updates of the X86 pmu event JSON data
 
    - Documentation updates
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAl6J2iATHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYoXMEEACy6WaNabX7EzkLUnX0WCgxnZVSryNR
 4EnxLJSg5lChEe4q2mOS3mRMpzlXHQieWcFxlwda7kjIbFlgQvjJQUiYlAvxRRO/
 giY/GwCtTi/Flcb+7wKxTgMYmtAUOZDWeQbBZUlFLi9vyeCHVkjget9EyVsgbe/W
 EmRsrPuKOVMUTeEwm3zpIE051DObpiWLNge++My70q5W/yNsS94PbNydgKO7osqk
 pX37YVyBFpI2IQxMGzaE3yK7OxXRjYljZaz1tONFDMEYOX9gmxpDsCCflsP1ZOzL
 4/P4faRvAOElwxtYBelKmRl8eboqhRpTEK0Et0TI0LYbUZrE2nisDi0LTKPWQb0k
 Om2Qi6AfZs67PVzx9htlx6rfee72+sUluz5BDKOGH0pNJ8CFy70ns8InLsZqbBZ7
 SgFVNjx6bHxB58VuVE9WEzr/KVs6zI/SuJlH7WG7FLXbm5j0cETfCjg40JlDpSNh
 CZs+Epky1zyytrVJ9Gc7KnRlw8VB2eWEQ2cQ0sqj5w7WxhfrnsCmQf1zk4sofhOF
 iz3Dvb9Llz/pYWGZbEiQAuI+8bo0psJptidzpmpbIXs/woKDhW49w1FxqowJQMWe
 +lGWcauSfo3gjgEnTkOWAx3yiH4i9rvRChX8Jh0Z07d6Kwf19YYfxcuhlkx0Wutj
 eKaaErWDtWAxpA==
 =2UUD
 -----END PGP SIGNATURE-----

Merge tag 'perf-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull more perf updates from Thomas Gleixner:
 "Perf updates all over the place:

  core:

   - Support for cgroup tracking in samples to allow cgroup based
     analysis

  tools:

   - Support for cgroup analysis

   - Commandline option and hotkey for perf top to change the sort order

   - A set of fixes all over the place

   - Various build system related improvements

   - Updates of the X86 pmu event JSON data

   - Documentation updates"

* tag 'perf-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (55 commits)
  perf python: Fix clang detection to strip out options passed in $CC
  perf tools: Support Python 3.8+ in Makefile
  perf script: Fix invalid read of directory entry after closedir()
  perf script report: Fix SEGFAULT when using DWARF mode
  perf script: add -S/--symbols documentation
  perf pmu-events x86: Use CPU_CLK_UNHALTED.THREAD in Kernel_Utilization metric
  perf events parser: Add missing Intel CPU events to parser
  perf script: Allow --symbol to accept hexadecimal addresses
  perf report/top TUI: Fix title line formatting
  perf top: Support hotkey to change sort order
  perf top: Support --group-sort-idx to change the sort order
  perf symbols: Fix arm64 gap between kernel start and module end
  perf build-test: Honour JOBS to override detection of number of cores
  perf script: Add --show-cgroup-events option
  perf top: Add --all-cgroups option
  perf record: Add --all-cgroups option
  perf record: Support synthesizing cgroup events
  perf report: Add 'cgroup' sort key
  perf cgroup: Maintain cgroup hierarchy
  perf tools: Basic support for CGROUP event
  ...
2020-04-05 12:26:24 -07:00
Linus Torvalds
bdabb68931 RTC for 5.7
Subsystem:
  - The rtc_time_to_tm and rtc_tm_to_time wrappers have finally been removed and
    only the 64bit version remain.
  - hctosys now works with drivers compiled as modules
 
 New driver:
  - MediaTek MT2712 SoC based RTC
 
 Drivers:
  - set range for 88pm860x, au1xxx, cpcap, da9052, davinci, ds1305, ds1374,
    mcp5121, pl030, pl031, pm8xxx, puv3, sa1100, sirfsoc, starfire, sun6i
  - ds1307: DS1388 oscillator failure detection and watchdog support
  - jz4740: JZ4760 support
  - pcf85063: clock out pin support
  - sun6i: external 32k oscillator is now optional, the range is now handled by
    the core, providing a solution for 2034.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEycoQi/giopmpPgB12wIijOdRNOUFAl6IgdAACgkQ2wIijOdR
 NOVH9Q//evfZmRDQb9Lm8YuSOt+U6lBaCuvRP8H4s7i02jsw0tt1oT6+rGo+1N+k
 pi64+iwPqDj7h+eds06jVur7yWZDNNfCSywlMU8ODGLQcc/hXMTvaIeJtdXG+I+7
 dpIVTs9Artiey2Qb3qZalSMYzrE2rQG6Yuyb/tHx7Pohvje1wKnAE3T64W6sfvir
 zjAwAr/+s9n82mjGtGLapz0onao7dSN4p6b3UIkph9KxPdeHjItd7cRiJuzioysj
 LE8WRUek++uha32PzghK9MoUpRKf8PJtGbsAIRhdwvmwub1Pqs6Uvk5IHQvdiFZx
 af1Qnw/4qUH03HVUuq8VdEkwa8mdthcZ72b8uzUWOqP+uPkeTTlQOGOd1dRECijK
 Qic+SKlEznwgKC9WuDufUQg5i2WjFBnBlA+dCE12/t91SbSlZdYjb53nQLHve1b9
 e4VfyKnS5Ghn/dfizzzSPdcWuPW1rqq2dHTiOvFVqlLn1Fkt1AKaJzGAeCe6PWp4
 AJVqPu+D1eQ/qmvEPXI7dQpCxdI+p6FNJgQvQLMssaq7mpf2fiRoLx23ikFG0v0k
 BeNkNWpLz2ACwHpsOa/RWLwa/FC2+KBHaRWf+As7te63byeDQC8hUEi7F5K78lSS
 yhfZ8SJR04SIIGKjuwAzPmaaIJ0hJT+eaxkFAJU7P5hD7KElsuM=
 =6Veu
 -----END PGP SIGNATURE-----

Merge tag 'rtc-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "More cleanup this cycle, with the final goal of removing the
  rtc_time_to_tm and rtc_tm_to_time wrappers. All the drivers that have
  been modified for this now are ready for the end of times (whether it
  happens in 2033, 2038, 2106, 2127 or even 4052). There is also a
  single new driver and the usual fixes and features.

  Summary:

  Subsystem:

   - The rtc_time_to_tm and rtc_tm_to_time wrappers have finally been
     removed and only the 64bit version remain.

   - hctosys now works with drivers compiled as modules

  New driver:

   - MediaTek MT2712 SoC based RTC

  Drivers:

   - set range for 88pm860x, au1xxx, cpcap, da9052, davinci, ds1305,
     ds1374, mcp5121, pl030, pl031, pm8xxx, puv3, sa1100, sirfsoc,
     starfire, sun6i

   - ds1307: DS1388 oscillator failure detection and watchdog support

   - jz4740: JZ4760 support

   - pcf85063: clock out pin support

   - sun6i: external 32k oscillator is now optional, the range is now
     handled by the core, providing a solution for 2034"

* tag 'rtc-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (87 commits)
  rtc: ds1307: check for failed memory allocation on wdt
  rtc: class: remove redundant assignment to variable err
  rtc: remove rtc_time_to_tm and rtc_tm_to_time
  rtc: sun6i: let the core handle rtc range
  rtc: sun6i: switch to rtc_time64_to_tm/rtc_tm_to_time64
  rtc: ds1307: add support for watchdog timer on ds1388
  rtc: da9052: switch to rtc_time64_to_tm/rtc_tm_to_time64
  rtc: da9052: set range
  rtc: da9052: convert to devm_rtc_allocate_device
  rtc: imx-sc: Align imx sc msg structs to 4
  rtc: fsl-ftm-alarm: report alarm to core
  rtc: pcf85063: Add pcf85063 clkout control to common clock framework
  rtc: make definitions in include/uapi/linux/rtc.h actually useful for user space
  rtc: class: avoid unnecessary lookup in hctosys
  dt-bindings: rtc: Convert and update jz4740-rtc doc to YAML
  rtc: jz4740: Rename vendor-specific DT properties
  rtc: jz4740: Add support for JZ4760 SoC
  rtc: class: support hctosys from modular RTC drivers
  rtc: pm8xxx: clear alarm register when alarm is not enabled
  rtc: omap: drop unused dt-bindings header
  ...
2020-04-04 10:38:01 -07:00
Linus Torvalds
828907ef25 This is the bulk of GPIO development for the v5.7 kernel cycle.
Core and userspace API:
 
 - The userspace API KFIFOs have been imoproved with locks that
   do not block interrupts. This makes us better at getting
   events to userspace without blocking or disturbing new events
   arriving in the same time. This was reviewed by the KFIFO
   maintainer Stefani. This is a generic improvement which
   paves the road for similar improvements in other subsystems.
 
 - We provide a new ioctl() for monitoring changes in the line
   information, such as when multiple clients are taking lines
   and giving them back, possibly reconfiguring them in the
   process: we can now monitor that and not get stuck with stale
   static information.
 
 - An example tool 'gpio-watch' is provided to showcase this
   functionality.
 
 - Timestamps for events are switched to ktime_get_ns() which is
   monotonic. We previously had a 'realtime' stamp which could
   move forward and *backward* in time, which probably would just
   cause silent bugs and weird behaviour. In the long run we
   see two relevant timestamps: ktime_get_ns() or the timestamp
   sometimes provided by the GPIO hardware itself, if that
   exists.
 
 - Device Tree overlay support for GPIO hogs. On systems that
   load overlays, these overlays can now contain hogs, and will
   then be respected.
 
 - Handle pin control interaction with nonexisting pin ranges
   in the GPIO library core instead of in the individual
   drivers.
 
 New drivers:
 
 - New driver for the Mellanox BlueField 2 GPIO controller.
 
 Driver improvements:
 
 - Introduce the BGPIOF_NO_SET_ON_INPUT flag to the generic
   MMIO GPIO library and use this flag in the MT7621 driver.
 
 - Texas Instruments OMAP CPU power management improvements,
   such as blocking of idle on pending GPIO interrupts.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEElDRnuGcz/wPCXQWMQRCzN7AZXXMFAl6IWUAACgkQQRCzN7AZ
 XXPReQ//WUHALqbLOL/DZR8kVyygVZXV8JC4jcuMQgX+Mvm1DQuGp1T8VPlG1wC7
 vy5eTz3oPc+jAaHGQgGiSGdPRQtDkAW5+Wo4hzcHJ5ATlzT7cgNywK3Jk6+YlPlF
 CuhHB6aPEymQ45/GseUwEb5AuWWKS03P3XdOBj2IdDhuRHRfyjHi+31s0lh6bfNs
 kC2eP+VtddVqLbOdPE1GKjZi+Iq9ffFRmiNTduHbl3o6ZoE6WnMvn2wsC6zPpJr4
 AM8zpj9JFUq1DYaQf8bJJLTm8lItcyyUUhq8oKUxBpecjWfhUYwEYHGxqWIk9fbM
 oyJ3zBlU0G7bc4gu1VG3cTacUf//BTmQG3iZNSSw9w17I1hOMX9wNJan22VkEbJD
 8X+6AcgkldNwnAVWcVgg1lkfgdxlWURMYXl1uQPQZSj2SQL6gFcdkAhKwlgl8jOi
 RctUfZ69tD+4ul2b+MhL6BtIk16o2RIBJF53ESxrR4qftRZ3ywW4JQ/AwNoQalxM
 Xg8U3axFm8kitOzemVoXGr/AIee9KpcA4NK8yQLEPmSFgBaVzaVlP9Q7Klr7QGXg
 RvK45uRULrWnvSyoVY7Ox+ie1NiG8JAbaxKBxkV8n+z+gVMh82xcyQX+5SgWxwW0
 dzeEx1B0mCW4WDAK29CcdQVE6m4K2u/fabhZq5IhgS1mQoTC894=
 =EFm/
 -----END PGP SIGNATURE-----

Merge tag 'gpio-v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO development for the v5.7 kernel cycle.

  Core and userspace API:

   - The userspace API KFIFOs have been imoproved with locks that do not
     block interrupts. This makes us better at getting events to
     userspace without blocking or disturbing new events arriving in the
     same time. This was reviewed by the KFIFO maintainer Stefani. This
     is a generic improvement which paves the road for similar
     improvements in other subsystems.

   - We provide a new ioctl() for monitoring changes in the line
     information, such as when multiple clients are taking lines and
     giving them back, possibly reconfiguring them in the process: we
     can now monitor that and not get stuck with stale static
     information.

   - An example tool 'gpio-watch' is provided to showcase this
     functionality.

   - Timestamps for events are switched to ktime_get_ns() which is
     monotonic. We previously had a 'realtime' stamp which could move
     forward and *backward* in time, which probably would just cause
     silent bugs and weird behaviour. In the long run we see two
     relevant timestamps: ktime_get_ns() or the timestamp sometimes
     provided by the GPIO hardware itself, if that exists.

   - Device Tree overlay support for GPIO hogs. On systems that load
     overlays, these overlays can now contain hogs, and will then be
     respected.

   - Handle pin control interaction with nonexisting pin ranges in the
     GPIO library core instead of in the individual drivers.

  New drivers:

   - New driver for the Mellanox BlueField 2 GPIO controller.

  Driver improvements:

   - Introduce the BGPIOF_NO_SET_ON_INPUT flag to the generic MMIO GPIO
     library and use this flag in the MT7621 driver.

   - Texas Instruments OMAP CPU power management improvements, such as
     blocking of idle on pending GPIO interrupts"

* tag 'gpio-v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (59 commits)
  Revert "gpio: eic-sprd: Use devm_platform_ioremap_resource()"
  pinctrl: Unconditionally assign .request()/.free()
  gpio: Unconditionally assign .request()/.free()
  gpio: export of_pinctrl_get to modules
  pinctrl: Define of_pinctrl_get() dummy for !PINCTRL
  gpio: Rename variable in core APIs
  gpio: Avoid using pin ranges with !PINCTRL
  gpiolib: Remove unused gpio_chip parameter from gpio_set_bias()
  gpiolib: Pass gpio_desc to gpio_set_config()
  gpiolib: Introduce gpiod_set_config()
  tools: gpio: Fix out-of-tree build regression
  gpio: gpiolib: fix a doc warning
  gpio: tegra186: Add Tegra194 pin ranges for GG.0 and GG.1
  gpio: tegra186: Add support for pin ranges
  gpio: Support GPIO controllers without pin-ranges
  ARM: integrator: impd1: Use GPIO_LOOKUP() helper macro
  gpio: brcmstb: support gpio-line-names property
  tools: gpio: Fix typo in gpio-utils
  tools: gpio-hammer: Apply scripts/Lindent and retain good changes
  gpiolib: gpio_name_to_desc: factor out !name check
  ...
2020-04-04 10:27:00 -07:00
Linus Torvalds
2fb732b33b VFIO updates for v5.7-rc1
- vfio-pci SR-IOV support (Alex Williamson)
 
  - vfio DMA read/write interface (Yan Zhao)
 
  - Fix vfio-platform erroneous IRQ error log (Eric Auger)
 
  - Fix shared ATSD support for NVLink on POWER (Sam Bobroff)
 
  - Fix init error without CONFIG_IOMMU_DMA (Andre Przywara)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.14 (GNU/Linux)
 
 iQIcBAABAgAGBQJeh7XVAAoJECObm247sIsihpgP/A3xkJ4bS4KALoeKJwYOtWfP
 /KHNYZwlSno7WZxREsYxQvZpdbOmwj00IRl/ckvTNGZ5Urs3Po8PtZ1mmMmzqPj7
 oiLbusA2HapZUCncjtDtaiOhaaIP3bMc2SejtmBm8pWkNvCZNQm2MhjxKIS5jYbG
 XLRWN/OnRl6sk+w6QRYIMgYeXNXK25FVfE3NPlp/c1u75GU9cXOqO/oRwGJ4VcXJ
 ClGJUJQeGrQx6RNt2380e/SXCnYfnW92FqUVWmYuW1/4uznBbhdJ/OtRQz3eJ3AU
 i8jTWdvATIiQQsTwbFZIjOdQJbLPtFd4g5Q8tBb0sFTSkAnUamAqUeVn/bH9swNI
 9cq3xAcRx6ch1KDREIvO7M+SCrLTvIYcvGUc0QY8tPeUaH0aHXCU4tF3asxFU91P
 RCusvTK8bdjx0K90XsgXexzy45377uTnrwXzJaWlCFp6cZxL+QELLfvUrQ4ZOBFV
 MNilILh9/Beig6rxrzCB4K8A3YoMHAS6PnYyyb5iBLu86xbrxVk+LgUIt3eH7jGb
 n9+9UbPCPzVuMZfXV3bkh6zr/bOYu+LsASOptlOAQp29Kp0R5Al0o7IloDlBlFRX
 q7lIaHneC1IgKolj3Q+w4TXFvAtA6+GPdqkckDKwp9Ho5v7/4PlkuYpzEM67+cTx
 V79mNUyqw7zF/hyvVrew
 =RZWJ
 -----END PGP SIGNATURE-----

Merge tag 'vfio-v5.7-rc1' of git://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

 - vfio-pci SR-IOV support (Alex Williamson)

 - vfio DMA read/write interface (Yan Zhao)

 - Fix vfio-platform erroneous IRQ error log (Eric Auger)

 - Fix shared ATSD support for NVLink on POWER (Sam Bobroff)

 - Fix init error without CONFIG_IOMMU_DMA (Andre Przywara)

* tag 'vfio-v5.7-rc1' of git://github.com/awilliam/linux-vfio:
  vfio: Ignore -ENODEV when getting MSI cookie
  vfio-pci/nvlink2: Allow fallback to ibm,mmio-atsd[0]
  vfio/pci: Cleanup .probe() exit paths
  vfio/pci: Remove dev_fmt definition
  vfio/pci: Add sriov_configure support
  vfio: Introduce VFIO_DEVICE_FEATURE ioctl and first user
  vfio/pci: Introduce VF token
  vfio/pci: Implement match ops
  vfio: Include optional device match in vfio_device_ops callbacks
  vfio: avoid inefficient operations on VFIO group in vfio_pin/unpin_pages
  vfio: introduce vfio_dma_rw to read/write a range of IOVAs
  vfio: allow external user to get vfio group from device
  vfio: platform: Switch to platform_get_irq_optional()
2020-04-04 09:57:42 -07:00
Ingo Molnar
7dc41b9b99 perf/urgent fixes and improvements:
perf python:
 
   Arnaldo Carvalho de Melo:
 
   - Fix clang detection to strip out options passed in $CC.
 
 build:
 
   He Zhe:
 
   - Normalize gcc parameter when generating arch errno table, fixing
     the build by removing options from $(CC).
 
   Sam Lunt:
 
   - Support Python 3.8+ in Makefile.
 
 perf report/top:
 
   Arnaldo Carvalho de Melo:
 
   - Fix title line formatting.
 
 perf script:
 
   Andreas Gerstmayr:
 
   - Fix SEGFAULT when using DWARF mode.
 
   - Fix invalid read of directory entry after closedir(), found with valgrind.
 
   Hagen Paul Pfeifer:
 
   - Introduce --deltatime option.
 
   Stephane Eranian:
 
   - Allow --symbol to accept hexadecimal addresses.
 
   Ian Rogers:
 
   - Add -S/--symbols documentation
 
   Namhyung Kim:
 
   - Add --show-cgroup-events option.
 
 perf python:
 
   Arnaldo Carvalho de Melo:
 
   - Include rwsem.c in the python binding, needed by the cgroups improvements.
 
 build-test:
 
   Arnaldo Carvalho de Melo:
 
   - Honour JOBS to override detection of number of cores
 
 perf top:
 
   Jin Yao:
 
   - Support --group-sort-idx to change the sort order
 
   - perf top: Support hotkey to change sort order
 
 perf pmu-events x86:
 
   Jin Yao:
 
   - Use CPU_CLK_UNHALTED.THREAD in Kernel_Utilization metric
 
 perf symbols arm64:
 
   Kemeng Shi:
 
   - Fix arm64 gap between kernel start and module end
 
 kernel perf subsystem:
 
   Namhyung Kim:
 
   - Add PERF_RECORD_CGROUP event and Add PERF_SAMPLE_CGROUP feature,
     to allow cgroup tracking, saving a link between cgroup path and
     its id number.
 
 perf cgroup:
 
   Namhyung Kim:
 
   - Maintain cgroup hierarchy.
 
 perf report:
 
   Namhyung Kim:
 
   - Add 'cgroup' sort key.
 
 perf record:
 
   Namhyung Kim:
 
   - Support synthesizing cgroup events for pre-existing cgroups.
 
   - Add --all-cgroups option
 
 Documentation:
 
   Tony Jones:
 
   - Update docs regarding kernel/user space unwinding.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCXodMtwAKCRCyPKLppCJ+
 J+leAP0Ws0dGzMSIwcMVc7zvK1IsYOTlZ8lYXJePxD+Po/YPdAEA6Squf4gwZ2wm
 b9R7w50dlCkMJ9LaueCeZZjh/4asFwQ=
 =auOb
 -----END PGP SIGNATURE-----

Merge tag 'perf-urgent-for-mingo-5.7-20200403' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes and improvements from Arnaldo Carvalho de Melo:

perf python:

  Arnaldo Carvalho de Melo:

  - Fix clang detection to strip out options passed in $CC.

build:

  He Zhe:

  - Normalize gcc parameter when generating arch errno table, fixing
    the build by removing options from $(CC).

  Sam Lunt:

  - Support Python 3.8+ in Makefile.

perf report/top:

  Arnaldo Carvalho de Melo:

  - Fix title line formatting.

perf script:

  Andreas Gerstmayr:

  - Fix SEGFAULT when using DWARF mode.

  - Fix invalid read of directory entry after closedir(), found with valgrind.

  Hagen Paul Pfeifer:

  - Introduce --deltatime option.

  Stephane Eranian:

  - Allow --symbol to accept hexadecimal addresses.

  Ian Rogers:

  - Add -S/--symbols documentation

  Namhyung Kim:

  - Add --show-cgroup-events option.

perf python:

  Arnaldo Carvalho de Melo:

  - Include rwsem.c in the python binding, needed by the cgroups improvements.

build-test:

  Arnaldo Carvalho de Melo:

  - Honour JOBS to override detection of number of cores

perf top:

  Jin Yao:

  - Support --group-sort-idx to change the sort order

  - perf top: Support hotkey to change sort order

perf pmu-events x86:

  Jin Yao:

  - Use CPU_CLK_UNHALTED.THREAD in Kernel_Utilization metric

perf symbols arm64:

  Kemeng Shi:

  - Fix arm64 gap between kernel start and module end

kernel perf subsystem:

  Namhyung Kim:

  - Add PERF_RECORD_CGROUP event and Add PERF_SAMPLE_CGROUP feature,
    to allow cgroup tracking, saving a link between cgroup path and
    its id number.

perf cgroup:

  Namhyung Kim:

  - Maintain cgroup hierarchy.

perf report:

  Namhyung Kim:

  - Add 'cgroup' sort key.

perf record:

  Namhyung Kim:

  - Support synthesizing cgroup events for pre-existing cgroups.

  - Add --all-cgroups option

Documentation:

  Tony Jones:

  - Update docs regarding kernel/user space unwinding.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-04-04 10:35:15 +02:00
Linus Torvalds
86f26a77cb pci-v5.7-changes
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCgAyFiEEgMe7l+5h9hnxdsnuWYigwDrT+vwFAl6GTQMUHGJoZWxnYWFz
 QGdvb2dsZS5jb20ACgkQWYigwDrT+vy3PhAAmqpYBRobOsG8QbmKDjoJEFtkqdvD
 z6+4zf/R+hF11RyXjMDwihIe8d+tkQ4eAaYu6Oh5PrTyanz0G0PgeCrivZeytULk
 thqQIWzDQMVA5vN/2/Vy8s5s+3HzP8z/MZOFScJ7+xA1MndXptPRTNmFUbjx+GAv
 x8/pTp0u9AF6m7itX65DxXvwkzjWamt+Ar4Yx2IcuKAU/M5RtfuZO3PpDnqn7/wk
 JFlkRoYeFB6qNnnkPdeyPHl9dALhuhzgdTyklQEnKVW3nf3xThYDhcEwdh6kBQgl
 0dH8lL5LXy7PKGN8RES4wB0Vqndw/HlsCF5O4wkkfItbnbJxGJtS139e5973m0ud
 sgWvF4yJAT2jCKhIeNz34sePQJMyWALhv0XzZCsJ0YeGHsrV1jrHELkwUT1+eIsT
 3UV0iZ6aL06zQJDyKUbbIcQzEQ/wwBC+x9VgsyL54K1quCQZ1N1Nl/dvrb4cRG9m
 m9EhJK/brDf4c0uFlOmMTSxV1t5J+z6ZSQnh1ShD/o5yBsxqN6q5brDT6LEs+jbM
 LsIkA18jJOd4OyiDs98YiFKvIfFQbQ0LEBQpJwhF0snvfBFMMbUYN/T/NYneWON/
 F0TpkFoP7PXDuq55iNaLdnObfzrpC9kdzUyWvePUvjxIl55bkf+/qtUny+H48t4L
 dNggvW052d7BHes=
 =deWu
 -----END PGP SIGNATURE-----

Merge tag 'pci-v5.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
 "Enumeration:

   - Revert sysfs "rescan" renames that broke apps (Kelsey Skunberg)

   - Add more 32 GT/s link speed decoding and improve the implementation
     (Yicong Yang)

  Resource management:

   - Add support for sizing programmable host bridge apertures and fix a
     related alpha Nautilus regression (Ivan Kokshaysky)

  Interrupts:

   - Add boot interrupt quirk mechanism for Xeon chipsets and document
     boot interrupts (Sean V Kelley)

  PCIe native device hotplug:

   - When possible, disable in-band presence detect and use PDS
     (Alexandru Gagniuc)

   - Add DMI table for devices that don't use in-band presence detection
     but don't advertise that correctly (Stuart Hayes)

   - Fix hang when powering slots up/down via sysfs (Lukas Wunner)

   - Fix an MSI interrupt race (Stuart Hayes)

  Virtualization:

   - Add ACS quirks for Zhaoxin devices (Raymond Pang)

  Error handling:

   - Add Error Disconnect Recover (EDR) support so firmware can report
     devices disconnected via DPC and we can try to recover (Kuppuswamy
     Sathyanarayanan)

  Peer-to-peer DMA:

   - Add Intel Sky Lake-E Root Ports B, C, D to the whitelist (Andrew
     Maier)

  ASPM:

   - Reduce severity of common clock config message (Chris Packham)

   - Clear the correct bits when enabling L1 substates, so we don't go
     to the wrong state (Yicong Yang)

  Endpoint framework:

   - Replace EPF linkup ops with notifier call chain and improve locking
     (Kishon Vijay Abraham I)

   - Fix concurrent memory allocation in OB address region (Kishon Vijay
     Abraham I)

   - Move PF function number assignment to EPC core to support multiple
     function creation methods (Kishon Vijay Abraham I)

   - Fix issue with clearing configfs "start" entry (Kunihiko Hayashi)

   - Fix issue with endpoint MSI-X ignoring BAR Indicator and Table
     Offset (Kishon Vijay Abraham I)

   - Add support for testing DMA transfers (Kishon Vijay Abraham I)

   - Add support for testing > 10 endpoint devices (Kishon Vijay Abraham I)

   - Add support for tests to clear IRQ (Kishon Vijay Abraham I)

   - Add common DT schema for endpoint controllers (Kishon Vijay Abraham I)

  Amlogic Meson PCIe controller driver:

   - Add DT bindings for AXG PCIe PHY, shared MIPI/PCIe analog PHY (Remi
     Pommarel)

   - Add Amlogic AXG PCIe PHY, AXG MIPI/PCIe analog PHY drivers (Remi
     Pommarel)

  Cadence PCIe controller driver:

   - Add Root Complex/Endpoint DT schema for Cadence PCIe (Kishon Vijay
     Abraham I)

  Intel VMD host bridge driver:

   - Add two VMD Device IDs that require bus restriction mode (Sushma
     Kalakota)

  Mobiveil PCIe controller driver:

   - Refactor and modularize mobiveil driver (Hou Zhiqiang)

   - Add support for Mobiveil GPEX Gen4 host (Hou Zhiqiang)

  Microsoft Hyper-V host bridge driver:

   - Add support for Hyper-V PCI protocol version 1.3 and
     PCI_BUS_RELATIONS2 (Long Li)

   - Refactor to prepare for virtual PCI on non-x86 architectures (Boqun
     Feng)

   - Fix memory leak in hv_pci_probe()'s error path (Dexuan Cui)

  NVIDIA Tegra PCIe controller driver:

   - Use pci_parse_request_of_pci_ranges() (Rob Herring)

   - Add support for endpoint mode and related DT updates (Vidya Sagar)

   - Reduce -EPROBE_DEFER error message log level (Thierry Reding)

  Qualcomm PCIe controller driver:

   - Restrict class fixup to specific Qualcomm devices (Bjorn Andersson)

  Synopsys DesignWare PCIe controller driver:

   - Refactor core initialization code for endpoint mode (Vidya Sagar)

   - Fix endpoint MSI-X to use correct table address (Kishon Vijay
     Abraham I)

  TI DRA7xx PCIe controller driver:

   - Fix MSI IRQ handling (Vignesh Raghavendra)

  TI Keystone PCIe controller driver:

   - Allow AM654 endpoint to raise MSI-X interrupt (Kishon Vijay Abraham I)

  Miscellaneous:

   - Quirk ASMedia XHCI USB to avoid "PME# from D0" defect (Kai-Heng
     Feng)

   - Use ioremap(), not phys_to_virt(), for platform ROM to fix video
     ROM mapping with CONFIG_HIGHMEM (Mikel Rychliski)"

* tag 'pci-v5.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (96 commits)
  misc: pci_endpoint_test: remove duplicate macro PCI_ENDPOINT_TEST_STATUS
  PCI: tegra: Print -EPROBE_DEFER error message at debug level
  misc: pci_endpoint_test: Use full pci-endpoint-test name in request_irq()
  misc: pci_endpoint_test: Fix to support > 10 pci-endpoint-test devices
  tools: PCI: Add 'e' to clear IRQ
  misc: pci_endpoint_test: Add ioctl to clear IRQ
  misc: pci_endpoint_test: Avoid using module parameter to determine irqtype
  PCI: keystone: Allow AM654 PCIe Endpoint to raise MSI-X interrupt
  PCI: dwc: Fix dw_pcie_ep_raise_msix_irq() to get correct MSI-X table address
  PCI: endpoint: Fix ->set_msix() to take BIR and offset as arguments
  misc: pci_endpoint_test: Add support to get DMA option from userspace
  tools: PCI: Add 'd' command line option to support DMA
  misc: pci_endpoint_test: Use streaming DMA APIs for buffer allocation
  PCI: endpoint: functions/pci-epf-test: Print throughput information
  PCI: endpoint: functions/pci-epf-test: Add DMA support to transfer data
  PCI: pciehp: Fix MSI interrupt race
  PCI: pciehp: Fix indefinite wait on sysfs requests
  PCI: endpoint: Fix clearing start entry in configfs
  PCI: tegra: Add support for PCIe endpoint mode in Tegra194
  PCI: sysfs: Revert "rescan" file renames
  ...
2020-04-03 14:25:02 -07:00
Linus Torvalds
0ad5b053d4 Char/Misc driver patches for 5.7-rc1
Here is the big set of char/misc/other driver patches for 5.7-rc1.
 
 Lots of things in here, and it's later than expected due to some reverts
 to resolve some reported issues.  All is now clean with no reported
 problems in linux-next.
 
 Included in here is:
 	- interconnect updates
 	- mei driver updates
 	- uio updates
 	- nvmem driver updates
 	- soundwire updates
 	- binderfs updates
 	- coresight updates
 	- habanalabs updates
 	- mhi new bus type and core
 	- extcon driver updates
 	- some Kconfig cleanups
 	- other small misc driver cleanups and updates
 
 As mentioned, all have been in linux-next for a while, and with the last
 two reverts, all is calm and good.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXodfvA8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ynzCQCfROhar3E8EhYEqSOP6xq6uhX9uegAnRgGY2rs
 rN4JJpOcTddvZcVlD+vo
 =ocWk
 -----END PGP SIGNATURE-----

Merge tag 'char-misc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big set of char/misc/other driver patches for 5.7-rc1.

  Lots of things in here, and it's later than expected due to some
  reverts to resolve some reported issues. All is now clean with no
  reported problems in linux-next.

  Included in here is:
   - interconnect updates
   - mei driver updates
   - uio updates
   - nvmem driver updates
   - soundwire updates
   - binderfs updates
   - coresight updates
   - habanalabs updates
   - mhi new bus type and core
   - extcon driver updates
   - some Kconfig cleanups
   - other small misc driver cleanups and updates

  As mentioned, all have been in linux-next for a while, and with the
  last two reverts, all is calm and good"

* tag 'char-misc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (174 commits)
  Revert "driver core: platform: Initialize dma_parms for platform devices"
  Revert "amba: Initialize dma_parms for amba devices"
  amba: Initialize dma_parms for amba devices
  driver core: platform: Initialize dma_parms for platform devices
  bus: mhi: core: Drop the references to mhi_dev in mhi_destroy_device()
  bus: mhi: core: Initialize bhie field in mhi_cntrl for RDDM capture
  bus: mhi: core: Add support for reading MHI info from device
  misc: rtsx: set correct pcr_ops for rts522A
  speakup: misc: Use dynamic minor numbers for speakup devices
  mei: me: add cedar fork device ids
  coresight: do not use the BIT() macro in the UAPI header
  Documentation: provide IBM contacts for embargoed hardware
  nvmem: core: remove nvmem_sysfs_get_groups()
  nvmem: core: use is_bin_visible for permissions
  nvmem: core: use device_register and device_unregister
  nvmem: core: add root_only member to nvmem device struct
  extcon: axp288: Add wakeup support
  extcon: Mark extcon_get_edev_name() function as exported symbol
  extcon: palmas: Hide error messages if gpio returns -EPROBE_DEFER
  dt-bindings: extcon: usbc-cros-ec: convert extcon-usbc-cros-ec.txt to yaml format
  ...
2020-04-03 13:22:40 -07:00
Linus Torvalds
d883600523 Merge branch 'for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:

 - Christian extended clone3 so that processes can be spawned into
   cgroups directly.

   This is not only neat in terms of semantics but also avoids grabbing
   the global cgroup_threadgroup_rwsem for migration.

 - Daniel added !root xattr support to cgroupfs.

   Userland already uses xattrs on cgroupfs for bookkeeping. This will
   allow delegated cgroups to support such usages.

 - Prateek tried to make cpuset hotplug handling synchronous but that
   led to possible deadlock scenarios. Reverted.

 - Other minor changes including release_agent_path handling cleanup.

* 'for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  docs: cgroup-v1: Document the cpuset_v2_mode mount option
  Revert "cpuset: Make cpuset hotplug synchronous"
  cgroupfs: Support user xattrs
  kernfs: Add option to enable user xattrs
  kernfs: Add removed_size out param for simple_xattr_set
  kernfs: kvmalloc xattr value instead of kmalloc
  cgroup: Restructure release_agent_path handling
  selftests/cgroup: add tests for cloning into cgroups
  clone3: allow spawning processes into cgroups
  cgroup: add cgroup_may_write() helper
  cgroup: refactor fork helpers
  cgroup: add cgroup_get_from_file() helper
  cgroup: unify attach permission checking
  cpuset: Make cpuset hotplug synchronous
  cgroup.c: Use built-in RCU list checking
  kselftest/cgroup: add cgroup destruction test
  cgroup: Clean up css_set task traversal
2020-04-03 11:30:20 -07:00
Linus Torvalds
79f51b7b9c SCSI misc on 20200402
update changing all our txt files to rst ones.  Excluding that, we
 have the usual driver updates (qla2xxx, ufs, lpfc, zfcp, ibmvfc,
 pm80xx, aacraid), a treewide update for scnprintf and some other minor
 updates.  The major core update is Hannes moving functions out of the
 aacraid driver and into the core.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCXoYKiyYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishSasAP4iGwSB
 Y8tFaZgWadu76+wj5MdqTBoXdhnIuFF0rZG3pQEAiIKdsfQlbSFdm75+gUtx5hG/
 GOilX/pJczTRJDCGNis=
 =g7Sk
 -----END PGP SIGNATURE-----

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This series has a huge amount of churn because it pulls in Mauro's doc
  update changing all our txt files to rst ones.

  Excluding that, we have the usual driver updates (qla2xxx, ufs, lpfc,
  zfcp, ibmvfc, pm80xx, aacraid), a treewide update for scnprintf and
  some other minor updates.

  The major core change is Hannes moving functions out of the aacraid
  driver and into the core"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (223 commits)
  scsi: aic7xxx: aic97xx: Remove FreeBSD-specific code
  scsi: ufs: Do not rely on prefetched data
  scsi: dc395x: remove dc395x_bios_param
  scsi: libiscsi: Fix error count for active session
  scsi: hpsa: correct race condition in offload enabled
  scsi: message: fusion: Replace zero-length array with flexible-array member
  scsi: qedi: Add PCI shutdown handler support
  scsi: qedi: Add MFW error recovery process
  scsi: ufs: Enable block layer runtime PM for well-known logical units
  scsi: ufs-qcom: Override devfreq parameters
  scsi: ufshcd: Let vendor override devfreq parameters
  scsi: ufshcd: Update the set frequency to devfreq
  scsi: ufs: Resume ufs host before accessing ufs device
  scsi: ufs-mediatek: customize the delay for enabling host
  scsi: ufs: make HCE polling more compact to improve initialization latency
  scsi: ufs: allow custom delay prior to host enabling
  scsi: ufs-mediatek: use common delay function
  scsi: ufs: introduce common and flexible delay function
  scsi: ufs: use an enum for host capabilities
  scsi: ufs: fix uninitialized tx_lanes in ufshcd_disable_tx_lcc()
  ...
2020-04-02 17:03:53 -07:00
Linus Torvalds
e964f1e04a dmaengine updates for v5.7-rc1
- Core:
     - Some code cleanup and optimization in core by Andy
     - Debugfs support for displaying dmaengine channels by Peter
 
   - Drivers:
     - New driver for uniphier-xdmac controller
     - Updates to stm32 dma, mdma and dmamux drivers and PM support
     - More updates to idxd drivers
     - Bunch of changes in tegra-apb driver and cleaning up of pm functions
     - Bunch of spelling fixes and Replace zero-length array patches
     - Shutdown hook for fsl-dpaa2-qdma driver
     - Support for interleaved transfers for ti-edma and virtualization
       support for k3-dma driver
     - Support for reset and updates in xilinx_dma driver
     - Improvements and locking updates in at_hdma driver
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE+vs47OPLdNbVcHzyfBQHDyUjg0cFAl6FyokACgkQfBQHDyUj
 g0dnFRAAj9lvpflrL+b9eWBZkY1ElV1jAdxsTs4HnYdXQM3ijw8yOosVVSqiuiOy
 2qMfSRTP7qU9gqZ7oa1fnh05DqPmuTc3OF2IZlvGzkU9CiGQ735WGGGG8FfK/dZe
 F4OgQGwA45b47hNIbvM4acwWZYPL+pBuYusKdjdHkouqVM4SORiNM8aRrCJ59xIn
 P9TER//sMpdMEASuRuUIQnXb+OzSNPn1mLiP3zT0XHSM/nBMTAm7AnCDNT/Tjs9f
 hwk2j8rLrwllHGqeZln8cWLhUCPrZFNe5pBWtWyV3MyY/nxlrcUX0ndJUGJIDtsb
 nfXc4QKemOeF1RsC8DsQ/AY8jl6HFvRzWEEkq742IrLPCu/nTnxia4dbXW9MJ0Dp
 BI7IPwoaOoYqBdRkBnSVS2F4x3813egsEReznlu/sUorTIG2g9sWtmuzv6eRt4ow
 HczGgfdJXfCvIKbRg5TIXpbaJogbbB+1YrUlWq9vrZyhVw0ULtfxlWVKDy5VI1cL
 0Kiz/ZIGuoQ9h6E4G3jCpaQTV49tNbYp+vimU9kizmcm+WXrTXR7rgD4AI5tH2DQ
 pxYXNEl4gm1NRtWL1zzJ+B1C0MPXpc1Xafl92W39D6rphEGOdVVzay8meVIaQKDU
 qQaZ1dEK4uuSxwj8NrF7sXHSClafF888FFJBEMArde1HVql/HRU=
 =+UJ7
 -----END PGP SIGNATURE-----

Merge tag 'dmaengine-5.7-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine updates from Vinod Koul:
 "Core:
   - Some code cleanup and optimization in core by Andy

   - Debugfs support for displaying dmaengine channels by Peter

  Drivers:
   - New driver for uniphier-xdmac controller

   - Updates to stm32 dma, mdma and dmamux drivers and PM support

   - More updates to idxd drivers

   - Bunch of changes in tegra-apb driver and cleaning up of pm
     functions

   - Bunch of spelling fixes and Replace zero-length array patches

   - Shutdown hook for fsl-dpaa2-qdma driver

   - Support for interleaved transfers for ti-edma and virtualization
     support for k3-dma driver

   - Support for reset and updates in xilinx_dma driver

   - Improvements and locking updates in at_hdma driver"

* tag 'dmaengine-5.7-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (89 commits)
  dt-bindings: dma: renesas,usb-dmac: add r8a77961 support
  dmaengine: uniphier-xdmac: Remove redandant error log for platform_get_irq
  dmaengine: tegra-apb: Improve DMA synchronization
  dmaengine: tegra-apb: Don't save/restore IRQ flags in interrupt handler
  dmaengine: tegra-apb: mark PM functions as __maybe_unused
  dmaengine: fix spelling mistake "exceds" -> "exceeds"
  dmaengine: sprd: Set request pending flag when DMA controller is active
  dmaengine: ppc4xx: Use scnprintf() for avoiding potential buffer overflow
  dmaengine: idxd: remove global token limit check
  dmaengine: idxd: reflect shadow copy of traffic class programming
  dmaengine: idxd: Merge definition of dsa_batch_desc into dsa_hw_desc
  dmaengine: Create debug directories for DMA devices
  dmaengine: ti: k3-udma: Implement custom dbg_summary_show for debugfs
  dmaengine: Add basic debugfs support
  dmaengine: fsl-dpaa2-qdma: remove set but not used variable 'dpaa2_qdma'
  dmaengine: ti: edma: fix null dereference because of a typo in pointer name
  dmaengine: fsl-dpaa2-qdma: Adding shutdown hook
  dmaengine: uniphier-xdmac: Add UniPhier external DMA controller driver
  dt-bindings: dmaengine: Add UniPhier external DMA controller bindings
  dmaengine: ti: k3-udma: Implement support for atype (for virtualization)
  ...
2020-04-02 16:04:42 -07:00
Linus Torvalds
848960e576 sound updates for 5.7-rc1
This became again a busy development cycle. There are a few ALSA
 core updates (merely API cleanups and sparse fixes), while majority
 of other changes are found in ASoC scene.
 
 Here are some highlights:
 
 * ALSA core:
 - More helper macros for sparse warning fixes (e.g. bitwise types)
 - Slight optimization of PCM OSS locks
 - Make common handling for PCM / compress buffers (for SOF)
 
 * ASoC:
 - Lots of code refactoring and modernization for (still ongoing)
   componentization works
 - Conversion of SND_SOC_ALL_CODECS to use imply
 - Continued refactoring and fixing of the Intel SOF/SST support,
   including the initial (but still incomplete) SoundWire support
 - SoundWire and more advanced clocking support for Realtek RT5682
 - Support for amlogic GX, Meson 8, Meson 8B and T9015 DAC, Broadcom
   DSL/PON, Ingenic JZ4760 and JZ4770, Realtek RL6231, and TI TAS2563
   and TLV320ADCX140
 
 * HD-audio:
 - Optimizations in HDMI jack handling
 - A few new quirks and fixups for Realtek codecs
 
 * USB-audio:
 - Delayed registration support
 - New quirks for Motu, Kingston, Presonus
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAl6Fr0oOHHRpd2FpQHN1
 c2UuZGUACgkQLtJE4w1nLE+MFA//XZD6a6sVDCp1JvcT4yLn+xcpXPgT/HC/pUJb
 fH4T629gGUG2OGmEQXWf86c8UkrKjNsdkK5ZNjg6PlYagGZEO5RlQA35EV0/6QTK
 hQuRu8ALuVUnQBrB+knQRnlfa8hzXIaXWkriNi0s6V04iAlLJB1XqZ8/ckq3kWs2
 UqQ7vkTRODRAivdH0a4KcN2hENSvPfBkNTjhTn+Gp86FC3PIGbN6XqcZWM0rpXQ7
 qi9H9jVbavRCpHTPiV5DSZ6JyqqL/pT3LQ4GZIAf+i+frMGTIurB/7VUVIIuCFGT
 hf1MRrEFo47ox+7RyhJpgPPJxHhNdY+z7uUQDc/hoN1tDlLhGeS2Wjmy3soLZ172
 yVbun2z6jfVgm5lyHMqDnY71nCUVAgSWZwFbBtKMroLkw06X3P8ahTmad7Pnnut0
 XbrYt29aKOkuf+ejeMaUAtuyW0nKUg68DqlX8wP1RvO1bvY4kGrEkVj3K3ktNZEr
 GeZFLDDSMumxxXduX8vv/O5Z6MOGhq/toGjnYwnIOyzKR8uLEbUI4DIptUMoelgK
 b7zIMbLjeoZ4ckeUKNdbmEuhbrWZ3oM6owKCPt4D9EBunK9nu//cq2nsfGuJGBbT
 Swa+POYH89Au/22pYS0q3/fMAbEHctove/hvFiWoMRa3fNA2My2rMWwyaIAeW1Gl
 CAwOXk8=
 =fAMQ
 -----END PGP SIGNATURE-----

Merge tag 'sound-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "This became again a busy development cycle.  There are few ALSA core
  updates (merely API cleanups and sparse fixes), with the majority of
  other changes are found in ASoC scene.

  Here are some highlights:

  ALSA core:
   - More helper macros for sparse warning fixes (e.g. bitwise types)
   - Slight optimization of PCM OSS locks
   - Make common handling for PCM / compress buffers (for SOF)

  ASoC:
   - Lots of code refactoring and modernization for (still ongoing)
     componentization works
   - Conversion of SND_SOC_ALL_CODECS to use imply
   - Continued refactoring and fixing of the Intel SOF/SST support,
     including the initial (but still incomplete) SoundWire support
   - SoundWire and more advanced clocking support for Realtek RT5682
   - Support for amlogic GX, Meson 8, Meson 8B and T9015 DAC, Broadcom
     DSL/PON, Ingenic JZ4760 and JZ4770, Realtek RL6231, and TI TAS2563
     and TLV320ADCX140

  HD-audio:
   - Optimizations in HDMI jack handling
   - A few new quirks and fixups for Realtek codecs

  USB-audio:
   - Delayed registration support
   - New quirks for Motu, Kingston, Presonus"

* tag 'sound-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (415 commits)
  ALSA: usb-audio: Fix case when USB MIDI interface has more than one extra endpoint descriptor
  Revert "ALSA: uapi: Drop asound.h inclusion from asoc.h"
  ALSA: hda/realtek - Remove now-unnecessary XPS 13 headphone noise fixups
  ALSA: hda/realtek - Set principled PC Beep configuration for ALC256
  ALSA: doc: Document PC Beep Hidden Register on Realtek ALC256
  ALSA: hda/realtek - a fake key event is triggered by running shutup
  ALSA: hda: default enable CA0132 DSP support
  ASoC: amd: acp3x-pcm-dma: clean up two indentation issues
  ASoC: tlv320adcx140: Remove undocumented property
  ASoC: Intel: sof_sdw: Add Volteer support with RT5682 SNDW helper function
  ASoC: Intel: common: add match table for TGL RT5682 SoundWire driver
  ASoC: Intel: boards: add sof_sdw machine driver
  ASoC: Intel: soc-acpi: update topology and driver name for SoundWire platforms
  ASoC: rt5682: move DAI clock registry to I2S mode
  ASoC: pxa: magician: convert to use i2c_new_client_device()
  ASoC: SOF: Intel: hda-ctrl: add reset cycle before parsing capabilities
  Asoc: SOF: Intel: hda: check SoundWire wakeen interrupt in irq thread
  ASoC: SOF: Intel: hda: add WAKEEN interrupt support for SoundWire
  ASoC: SOF: Intel: hda: add parameter to control SoundWire clock stop quirks
  ASoC: SOF: Intel: hda: merge IPC, stream and SoundWire interrupt handlers
  ...
2020-04-02 15:50:04 -07:00
Linus Torvalds
8c1b724ddb ARM:
* GICv4.1 support
 * 32bit host removal
 
 PPC:
 * secure (encrypted) using under the Protected Execution Framework
 ultravisor
 
 s390:
 * allow disabling GISA (hardware interrupt injection) and protected
 VMs/ultravisor support.
 
 x86:
 * New dirty bitmap flag that sets all bits in the bitmap when dirty
 page logging is enabled; this is faster because it doesn't require bulk
 modification of the page tables.
 * Initial work on making nested SVM event injection more similar to VMX,
 and less buggy.
 * Various cleanups to MMU code (though the big ones and related
 optimizations were delayed to 5.8).  Instead of using cr3 in function
 names which occasionally means eptp, KVM too has standardized on "pgd".
 * A large refactoring of CPUID features, which now use an array that
 parallels the core x86_features.
 * Some removal of pointer chasing from kvm_x86_ops, which will also be
 switched to static calls as soon as they are available.
 * New Tigerlake CPUID features.
 * More bugfixes, optimizations and cleanups.
 
 Generic:
 * selftests: cleanups, new MMU notifier stress test, steal-time test
 * CSV output for kvm_stat.
 
 KVM/MIPS has been broken since 5.5, it does not compile due to a patch committed
 by MIPS maintainers.  I had already prepared a fix, but the MIPS maintainers
 prefer to fix it in generic code rather than KVM so they are taking care of it.
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl6GOnIUHHBib256aW5p
 QHJlZGhhdC5jb20ACgkQv/vSX3jHroMfxwf/ZKLZiRoaovXCOG71M/eHtQb8ZIqU
 3MPy+On3eC5Sk/aBxWUL9EFZsbYG6kYdbZ1VOvG9XPBoLlnkDSm/IR0kaELHtnjj
 oGVda/tvGn46Ne39y8xBptmb91WDcWH0vFthT/CwlMxAw3xjr+gG7Qyo+8F2CW6m
 SSSuLiHSBnyO1cQKruBTHZ8qnR8LlnfXEqtd6Y4LFLic0LbLIoIdRcT3wjQrcZrm
 Djd7wbTEYZjUfoqZ72ekwEDUsONcDLDSKcguDO9pSMSCGhpxCVT5Vy68KRpoIMs2
 nzNWDKjvqQo5zb2+GWxJgkd12Hv+n7PCXZMbVrWBu1pQsewUns9m4mkpGw==
 =6fGt
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "ARM:
   - GICv4.1 support

   - 32bit host removal

  PPC:
   - secure (encrypted) using under the Protected Execution Framework
     ultravisor

  s390:
   - allow disabling GISA (hardware interrupt injection) and protected
     VMs/ultravisor support.

  x86:
   - New dirty bitmap flag that sets all bits in the bitmap when dirty
     page logging is enabled; this is faster because it doesn't require
     bulk modification of the page tables.

   - Initial work on making nested SVM event injection more similar to
     VMX, and less buggy.

   - Various cleanups to MMU code (though the big ones and related
     optimizations were delayed to 5.8). Instead of using cr3 in
     function names which occasionally means eptp, KVM too has
     standardized on "pgd".

   - A large refactoring of CPUID features, which now use an array that
     parallels the core x86_features.

   - Some removal of pointer chasing from kvm_x86_ops, which will also
     be switched to static calls as soon as they are available.

   - New Tigerlake CPUID features.

   - More bugfixes, optimizations and cleanups.

  Generic:
   - selftests: cleanups, new MMU notifier stress test, steal-time test

   - CSV output for kvm_stat"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (277 commits)
  x86/kvm: fix a missing-prototypes "vmread_error"
  KVM: x86: Fix BUILD_BUG() in __cpuid_entry_get_reg() w/ CONFIG_UBSAN=y
  KVM: VMX: Add a trampoline to fix VMREAD error handling
  KVM: SVM: Annotate svm_x86_ops as __initdata
  KVM: VMX: Annotate vmx_x86_ops as __initdata
  KVM: x86: Drop __exit from kvm_x86_ops' hardware_unsetup()
  KVM: x86: Copy kvm_x86_ops by value to eliminate layer of indirection
  KVM: x86: Set kvm_x86_ops only after ->hardware_setup() completes
  KVM: VMX: Configure runtime hooks using vmx_x86_ops
  KVM: VMX: Move hardware_setup() definition below vmx_x86_ops
  KVM: x86: Move init-only kvm_x86_ops to separate struct
  KVM: Pass kvm_init()'s opaque param to additional arch funcs
  s390/gmap: return proper error code on ksm unsharing
  KVM: selftests: Fix cosmetic copy-paste error in vm_mem_region_move()
  KVM: Fix out of range accesses to memslots
  KVM: X86: Micro-optimize IPI fastpath delay
  KVM: X86: Delay read msr data iff writes ICR MSR
  KVM: PPC: Book3S HV: Add a capability for enabling secure guests
  KVM: arm64: GICv4.1: Expose HW-based SGIs in debugfs
  KVM: arm64: GICv4.1: Allow non-trapping WFI when using HW SGIs
  ...
2020-04-02 15:13:15 -07:00
Linus Torvalds
6cad420cc6 Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton:
 "A large amount of MM, plenty more to come.

  Subsystems affected by this patch series:
   - tools
   - kthread
   - kbuild
   - scripts
   - ocfs2
   - vfs
   - mm: slub, kmemleak, pagecache, gup, swap, memcg, pagemap, mremap,
         sparsemem, kasan, pagealloc, vmscan, compaction, mempolicy,
         hugetlbfs, hugetlb"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (155 commits)
  include/linux/huge_mm.h: check PageTail in hpage_nr_pages even when !THP
  mm/hugetlb: fix build failure with HUGETLB_PAGE but not HUGEBTLBFS
  selftests/vm: fix map_hugetlb length used for testing read and write
  mm/hugetlb: remove unnecessary memory fetch in PageHeadHuge()
  mm/hugetlb.c: clean code by removing unnecessary initialization
  hugetlb_cgroup: add hugetlb_cgroup reservation docs
  hugetlb_cgroup: add hugetlb_cgroup reservation tests
  hugetlb: support file_region coalescing again
  hugetlb_cgroup: support noreserve mappings
  hugetlb_cgroup: add accounting for shared mappings
  hugetlb: disable region_add file_region coalescing
  hugetlb_cgroup: add reservation accounting for private mappings
  mm/hugetlb_cgroup: fix hugetlb_cgroup migration
  hugetlb_cgroup: add interface for charge/uncharge hugetlb reservations
  hugetlb_cgroup: add hugetlb_cgroup reservation counter
  hugetlbfs: Use i_mmap_rwsem to address page fault/truncate race
  hugetlbfs: use i_mmap_rwsem for more pmd sharing synchronization
  mm/memblock.c: remove redundant assignment to variable max_addr
  mm: mempolicy: require at least one nodeid for MPOL_PREFERRED
  mm: mempolicy: use VM_BUG_ON_VMA in queue_pages_test_walk()
  ...
2020-04-02 13:55:34 -07:00
Bjorn Helgaas
b16f2ab280 Merge branch 'remotes/lorenzo/pci/endpoint'
- Use notification chain instead of EPF linkup ops for EPC events (Kishon
    Vijay Abraham I)

  - Protect concurrent allocation in endpoint outbound address region
    (Kishon Vijay Abraham I)

  - Protect concurrent access to pci_epf_ops (Kishon Vijay Abraham I)

  - Assign function number for each PF in endpoint core (Kishon Vijay
    Abraham I)

  - Refactor endpoint mode core initialization (Vidya Sagar)

  - Add API to notify when core initialization completes (Vidya Sagar)

  - Add test framework support to defer core initialization (Vidya Sagar)

  - Update Tegra SoC ABI header to support uninitialization of UPHY PLL
    when in endpoint mode without reference clock (Vidya Sagar)

  - Add DT and driver support for Tegra194 PCIe endpoint nodes (Vidya
    Sagar)

  - Add endpoint test support for DMA data transfer (Kishon Vijay
    Abraham I)

  - Print throughput information in endpoint test (Kishon Vijay Abraham I)

  - Use streaming DMA APIs for endpoint test buffer allocation (Kishon
    Vijay Abraham I)

  - Add endpoint test command line option for DMA (Kishon Vijay Abraham I)

  - When stopping a controller via configfs, clear endpoint "start" entry
    to prevent WARN_ON (Kunihiko Hayashi)

  - Update endpoint ->set_msix() to pay attention to MSI-X BAR Indicator
    and offset when finding MSI-X tables (Kishon Vijay Abraham I)

  - MSI-X tables are in local memory, not in the PCI address space.  Update
    pcie-designware-ep to account for this (Kishon Vijay Abraham I)

  - Allow AM654 PCIe Endpoint to raise MSI-X interrupts (Kishon Vijay
    Abraham I)

  - Avoid using module parameter to determine irqtype for endpoint test
    (Kishon Vijay Abraham I)

  - Add ioctl to clear IRQ for endpoint test (Kishon Vijay Abraham I)

  - Add endpoint test 'e' option to clear IRQ (Kishon Vijay Abraham I)

  - Bump limit on number of endpoint test devices from 10 to 10,000 (Kishon
    Vijay Abraham I)

  - Use full pci-endpoint-test name in request_irq() for easier profiling
    (Kishon Vijay Abraham I)

  - Reduce log level of -EPROBE_DEFER error messages to debug (Thierry
    Reding)

* remotes/lorenzo/pci/endpoint:
  misc: pci_endpoint_test: remove duplicate macro PCI_ENDPOINT_TEST_STATUS
  PCI: tegra: Print -EPROBE_DEFER error message at debug level
  misc: pci_endpoint_test: Use full pci-endpoint-test name in request_irq()
  misc: pci_endpoint_test: Fix to support > 10 pci-endpoint-test devices
  tools: PCI: Add 'e' to clear IRQ
  misc: pci_endpoint_test: Add ioctl to clear IRQ
  misc: pci_endpoint_test: Avoid using module parameter to determine irqtype
  PCI: keystone: Allow AM654 PCIe Endpoint to raise MSI-X interrupt
  PCI: dwc: Fix dw_pcie_ep_raise_msix_irq() to get correct MSI-X table address
  PCI: endpoint: Fix ->set_msix() to take BIR and offset as arguments
  misc: pci_endpoint_test: Add support to get DMA option from userspace
  tools: PCI: Add 'd' command line option to support DMA
  misc: pci_endpoint_test: Use streaming DMA APIs for buffer allocation
  PCI: endpoint: functions/pci-epf-test: Print throughput information
  PCI: endpoint: functions/pci-epf-test: Add DMA support to transfer data
  PCI: endpoint: Fix clearing start entry in configfs
  PCI: tegra: Add support for PCIe endpoint mode in Tegra194
  dt-bindings: PCI: tegra: Add DT support for PCIe EP nodes in Tegra194
  soc/tegra: bpmp: Update ABI header
  PCI: pci-epf-test: Add support to defer core initialization
  PCI: dwc: Add API to notify core initialization completion
  PCI: endpoint: Add notification for core init completion
  PCI: dwc: Refactor core initialization code for EP mode
  PCI: endpoint: Add core init notifying feature
  PCI: endpoint: Assign function number for each PF in EPC core
  PCI: endpoint: Protect concurrent access to pci_epf_ops with mutex
  PCI: endpoint: Fix for concurrent memory allocation in OB address region
  PCI: endpoint: Replace spinlock with mutex
  PCI: endpoint: Use notification chain mechanism to notify EPC events to EPF
2020-04-02 14:26:57 -05:00
Kishon Vijay Abraham I
475007f9ce misc: pci_endpoint_test: Add ioctl to clear IRQ
Add ioctl to clear IRQ which can be used to free the allocated
IRQ vectors and free the requested IRQ.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2020-04-02 17:57:10 +01:00
Kishon Vijay Abraham I
73c5762652 tools: PCI: Add 'd' command line option to support DMA
Add a new command line option 'd' to use DMA for data transfers.
It should be used with read, write or copy commands.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Tested-by: Alan Mikhak <alan.mikhak@sifive.com>
2020-04-02 17:57:10 +01:00
Brian Geffon
e346b38130 mm/mremap: add MREMAP_DONTUNMAP to mremap()
When remapping an anonymous, private mapping, if MREMAP_DONTUNMAP is set,
the source mapping will not be removed.  The remap operation will be
performed as it would have been normally by moving over the page tables to
the new mapping.  The old vma will have any locked flags cleared, have no
pagetables, and any userfaultfds that were watching that range will
continue watching it.

For a mapping that is shared or not anonymous, MREMAP_DONTUNMAP will cause
the mremap() call to fail.  Because MREMAP_DONTUNMAP always results in
moving a VMA you MUST use the MREMAP_MAYMOVE flag, it's not possible to
resize a VMA while also moving with MREMAP_DONTUNMAP so old_len must
always be equal to the new_len otherwise it will return -EINVAL.

We hope to use this in Chrome OS where with userfaultfd we could write an
anonymous mapping to disk without having to STOP the process or worry
about VMA permission changes.

This feature also has a use case in Android, Lokesh Gidra has said that
"As part of using userfaultfd for GC, We'll have to move the physical
pages of the java heap to a separate location.  For this purpose mremap
will be used.  Without the MREMAP_DONTUNMAP flag, when I mremap the java
heap, its virtual mapping will be removed as well.  Therefore, we'll
require performing mmap immediately after.  This is not only time
consuming but also opens a time window where a native thread may call mmap
and reserve the java heap's address range for its own usage.  This flag
solves the problem."

[bgeffon@google.com: v6]
  Link: http://lkml.kernel.org/r/20200218173221.237674-1-bgeffon@google.com
[bgeffon@google.com: v7]
  Link: http://lkml.kernel.org/r/20200221174248.244748-1-bgeffon@google.com
Signed-off-by: Brian Geffon <bgeffon@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Lokesh Gidra <lokeshgidra@google.com>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: "Michael S . Tsirkin" <mst@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Will Deacon <will@kernel.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Sonny Rao <sonnyrao@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Jesse Barnes <jsbarnes@google.com>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Florian Weimer <fweimer@redhat.com>
Link: http://lkml.kernel.org/r/20200207201856.46070-1-bgeffon@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02 09:35:30 -07:00
Tiwei Bie
4c8cf31885 vhost: introduce vDPA-based backend
This patch introduces a vDPA-based vhost backend. This backend is
built on top of the same interface defined in virtio-vDPA and provides
a generic vhost interface for userspace to accelerate the virtio
devices in guest.

This backend is implemented as a vDPA device driver on top of the same
ops used in virtio-vDPA. It will create char device entry named
vhost-vdpa-$index for userspace to use. Userspace can use vhost ioctls
on top of this char device to setup the backend.

Vhost ioctls are extended to make it type agnostic and behave like a
virtio device, this help to eliminate type specific API like what
vhost_net/scsi/vsock did:

- VHOST_VDPA_GET_DEVICE_ID: get the virtio device ID which is defined
  by virtio specification to differ from different type of devices
- VHOST_VDPA_GET_VRING_NUM: get the maximum size of virtqueue
  supported by the vDPA device
- VHSOT_VDPA_SET/GET_STATUS: set and get virtio status of vDPA device
- VHOST_VDPA_SET/GET_CONFIG: access virtio config space
- VHOST_VDPA_SET_VRING_ENABLE: enable a specific virtqueue

For memory mapping, IOTLB API is mandated for vhost-vDPA which means
userspace drivers are required to use
VHOST_IOTLB_UPDATE/VHOST_IOTLB_INVALIDATE to add or remove mapping for
a specific userspace memory region.

The vhost-vDPA API is designed to be type agnostic, but it allows net
device only in current stage. Due to the lacking of control virtqueue
support, some features were filter out by vhost-vdpa.

We will enable more features and devices in the near future.

Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20200326140125.19794-8-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-04-02 10:41:40 -04:00
Linus Torvalds
919dce2470 RDMA 5.7 pull request
The majority of the patches are cleanups, refactorings and clarity
 improvements
 
 - Various driver updates for siw, bnxt_re, rxe, efa, mlx5, hfi1
 
 - Lots of cleanup patches for hns
 
 - Convert more places to use refcount
 
 - Aggressively lock the RDMA CM code that syzkaller says isn't working
 
 - Work to clarify ib_cm
 
 - Use the new ib_device lifecycle model in bnxt_re
 
 - Fix mlx5's MR cache which seems to be failing more often with the new
   ODP code
 
 - mlx5 'dynamic uar' and 'tx steering' user interfaces
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEfB7FMLh+8QxL+6i3OG33FX4gmxoFAl6CSr0ACgkQOG33FX4g
 mxrtKg//XovbOfYAO7nC05FtGz9iEkIUBiwQOjUojgNSi6RMNDqRW1bmqKUugm1o
 9nXA6tw+fueEvUNSD541SCcxkUZJzWvubO9wHB6N3Fgy68N3Vf2rKV3EBBTh99rK
 Cb7rnmTTN6izRyI1wdyP2sjDJGyF8zvsgIrG2sibzLnqlyScrnD98YS0FdPZUfOa
 a1mmXBN/T7eaQ4TbE3lLLzGnifRlGmZ5vxEvOQmAlOdqAfIKQdbbW7oCRLVIleso
 gfQlOOvIgzHRwQ3VrFa3i6ETYtywXq7EgmQxCjqPVJQjCA79n5TLBkP1iRhvn8xi
 3+LO4YCkiSJ/NjTA2d9KwT6K4djj3cYfcueuqo2MoXXr0YLiY6TLv1OffKcUIq7c
 LM3d4CSwIAG+C2FZwaQrdSGa2h/CNfLAEeKxv430zggeDNKlwHJPV5w3rUJ8lT56
 wlyT7Lzosl0O9Z/1BSLYckTvbBCtYcmanVyCfHG8EJKAM1/tXy5LS8btJ3e51rPu
 XekR9ELrTTA2CTuoSCQGP6J0dBD2U7qO4XRCQ9N5BYLrI6RdP7Z4xYzzey49Z3Cx
 JaF86eurM7nS5biUszTtwww8AJMyYicB+0VyjBfk+mhv90w8tS1vZ1aZKzaQ1L6Z
 jWn8WgIN4rWY0YGQs6PiovT1FplyGs3p1wNmjn92WO0wZZ3WsmQ=
 =ae+a
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "The majority of the patches are cleanups, refactorings and clarity
  improvements.

  This cycle saw some more activity from Syzkaller, I think we are now
  clean on all but one of those bugs, including the long standing and
  obnoxious rdma_cm locking design defect. Continue to see many drivers
  getting cleanups, with a few new user visible features.

  Summary:

   - Various driver updates for siw, bnxt_re, rxe, efa, mlx5, hfi1

   - Lots of cleanup patches for hns

   - Convert more places to use refcount

   - Aggressively lock the RDMA CM code that syzkaller says isn't
     working

   - Work to clarify ib_cm

   - Use the new ib_device lifecycle model in bnxt_re

   - Fix mlx5's MR cache which seems to be failing more often with the
     new ODP code

   - mlx5 'dynamic uar' and 'tx steering' user interfaces"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (144 commits)
  RDMA/bnxt_re: make bnxt_re_ib_init static
  IB/qib: Delete struct qib_ivdev.qp_rnd
  RDMA/hns: Fix uninitialized variable bug
  RDMA/hns: Modify the mask of QP number for CQE of hip08
  RDMA/hns: Reduce the maximum number of extend SGE per WQE
  RDMA/hns: Reduce PFC frames in congestion scenarios
  RDMA/mlx5: Add support for RDMA TX flow table
  net/mlx5: Add support for RDMA TX steering
  IB/hfi1: Call kobject_put() when kobject_init_and_add() fails
  IB/hfi1: Fix memory leaks in sysfs registration and unregistration
  IB/mlx5: Move to fully dynamic UAR mode once user space supports it
  IB/mlx5: Limit the scope of struct mlx5_bfreg_info to mlx5_ib
  IB/mlx5: Extend QP creation to get uar page index from user space
  IB/mlx5: Extend CQ creation to get uar page index from user space
  IB/mlx5: Expose UAR object and its alloc/destroy commands
  IB/hfi1: Get rid of a warning
  RDMA/hns: Remove redundant judgment of qp_type
  RDMA/hns: Remove redundant assignment of wc->smac when polling cq
  RDMA/hns: Remove redundant qpc setup operations
  RDMA/hns: Remove meaningless prints
  ...
2020-04-01 18:18:18 -07:00
Linus Torvalds
f365ab31ef drm for 5.7-rc1
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJehCE6AAoJEAx081l5xIa+bKAQAJj49Hj3WvSJV6cSl3LmgwPV
 IcWpR6LLVrCOQiS600NyXnbv6lTmCtnIfwEneQqm5ltQvJk38QcKQvSua6+ETi9f
 0hl7IiytLwv2R/pS0g9jgSsKmbeP2bDwBAR44vK6pcK6WOgCrkpoL1F4YZEDUILT
 ewnRb52afF3Hw8PSG0lwgBYd7G0uto49t3nt86LjGftJgB3wPFlluVOzLHTeEh0w
 FZEyKuqS8hq8EZFfG1Gu1hS2ylO9y1VgYxiv18jDyRb8jUPq+gzqH6roTPRIronA
 whGZgC6SkyZ9NthCLBu4ITbO9wStAHoawzFfax25QwwuoOyrikuvGy3PfEUu+ixL
 bW2UtYK6BHLGnvZChH6E7i9J6qQbNYCn3Ty5bB1KsY06sHVoP1jYUBSicPN2ELWc
 9KaBI+WROBNEkge/rizwUFfD/u0MZaaSRsVSlGDdHkD7IFj2tDPhfNWdXZQl4EwR
 JnndT6cu97htf7tkid7RASpJ/hnwJTb1hg0Cc9kPblOrGqEDF0K5845FLR9VptGl
 5c2/KyKM/GaI793fP1TG76uDegBhV9337mUF1ZW3c6gCE7QXncZXM5jrIFRE9q2L
 IbvuyUYRof1gW0r1R0WVJYAi2CRBeMd7qgkQjMrbTw0o7FiYDJXB7dc5pYj2um2v
 mSVHikC2S1rbUdH0xbWM
 =I0vz
 -----END PGP SIGNATURE-----

Merge tag 'drm-next-2020-04-01' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "This is the main drm pull request for 5.7-rc1.

  Highlights:

   - i915 enables Tigerlake by default

   - i915 and amdgpu have initial OLED backlight support

     [ Jani Nikula pipes up and points out that we've had a bunch of
       "initial support" code for a long time already, but only now
       Lyude made it actually work on real world machines ]

   - vmwgfx add support to enable OpenGL 4 userspace

   - zero length arrays are mostly removed.

  Detailed summary:

  new driver:
   - tidss: TI Keystone platform display subsystem

  core:
   - new drm device warn macros
   - mode config valid for memory constrained devices
   - bridge bus format negotation
   - consolidated fake vblank event handling
   - dma_alloc related cleanups
   - drop get_crtc callback
   - dp: DP1.4 EDID corruption test
   - EDID CEA detailed timings improvements
   - relicense some code to dual GPL2/MIT
   - convert core vblank support to per-crtc support
   - rework drm_global_mutex
   - bridge rework to allow omap_dss custom driver removeal
   - remove drm_fb_helper connector interrfaces
   - zero-length array removal

  scheduler:
   - support for modifying the sched list
   - revert job distribution optimization
   - helper to pick least loaded scheduler
   - race condition fix

  mst:
   - various fixes
   - remove register_connector callback

  i915:
   - uapi to allows userspace specific CS ring buffer sizes
   - Tigerlake enablement patches + Tigerlake enabled by default
   - new sysfs entries for engine properties
   - display/logging refactors
   - eDP/DP fixes for DPCD
   - Gen7 back to aliasing-ppgtt
   - Gen8+ irq refactor
   - Avoid globals
   - GEM locking fixes and simplifications
   - Ice Lake and Elkhart Lake fixes and workarounds
   - Baytrail/Haswell instability fix
   - GVT - VFIO edid better support

  amdgpu:
   - Rework VM update handling in preparation for HMM support
   - drm load/unload removal fixups
   - USB-C PD firmware updates
   - HDCP srm support
   - Navi/renoir PM watermark fixes
   - OLED panel support
   - Optimize debugging vram access
   - Use BACO for runtime pm
   - DC clock programming optimizations and fixes
   - PSP fw loading sequence updates
   - Drop DRIVER_USE_AGP
   - Remove legacy drm load and unload callbacks
   - ACP Kconfig fix
   - Lots of fixes across the driver

  amdkfd:
   - runtime pm support
   - more gfx config details in amdgpu

  radeon:
   - drop DRIVER_USE_AGP

  vmwgfx:
   - Disable DMA when SEV encryption in use
   - Shader Model 5 support - needed for GL4 support

  msm:
   - DPU resource manager refactor
   - dpu using atomic global state

  mediatek:
   - MT8183 DPI support

  etnaviv:
   - out-of-bounds read fix
   - expose feature flags for GC400 STM32MP1 SoC
   - runtime suspend entry fix
   - dma32 zone fix

  hisilicon:
   - mode selection fixes

  meson:
   - YUV420 support

  lima:
   - add support for heap buffers

  tinydrm:
   - removal of owner field
   - explicit DT dependency removal
   - YAML schema conversion

  tegra:
   - misc cleanups

  tidss:
   - new driver

  virtio:
   - better batching of notifications to host
   - memory handling reworked
   - shmem + gpu context fixes

  hibmc:
   - add gamma_set support
   - improve DPMS support

  pl111:
   - Integrator IM-PD1 support

  sun4i:
   - LVDS support for A20 + A33
   - DSI panel handling improvements"

* tag 'drm-next-2020-04-01' of git://anongit.freedesktop.org/drm/drm: (1537 commits)
  drm/i915/display: Fix mode private_flags comparison at atomic_check
  drm/i915/gt: Stage the transfer of the virtual breadcrumb
  drm/i915/gt: Select the deepest available parking mode for rc6
  drm/i915: Avoid live-lock with i915_vma_parked()
  drm/i915/gt: Treat idling as a RPS downclock event
  drm/i915/gt: Cancel a hung context if already closed
  drm/i915: Use explicit flag to mark unreachable intel_context
  drm/amdgpu: don't try to reserve training bo for sriov (v2)
  drm/amdgpu/smu11: add support for SMU AC/DC interrupts
  drm/amdgpu/swSMU: handle manual AC/DC notifications
  drm/amdgpu/swSMU: handle DC controlled by GPIO for navi1x
  drm/amdgpu/swSMU: set AC/DC mode based on the current system state (v2)
  drm/amdgpu/swSMU: correct the bootup power source for Navi1X (v2)
  drm/amdgpu/swSMU: use the smu11 power source helper for navi1x
  drm/amdgpu/smu11: add a helper to set the power source
  drm/amd/swSMU: add callback to set AC/DC power source (v2)
  drm/scheduler: fix rare NULL ptr race
  drm/amdgpu: fix the coverage issue to clear ArcVPGRs
  drm/amd/display: Fix pageflip event race condition for DCN.
  drm/[radeon|amdgpu]: Remove HAINAN board from max_sclk override check
  ...
2020-04-01 15:24:20 -07:00
Linus Torvalds
72f35423e8 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "API:
   - Fix out-of-sync IVs in self-test for IPsec AEAD algorithms

  Algorithms:
   - Use formally verified implementation of x86/curve25519

  Drivers:
   - Enhance hwrng support in caam

   - Use crypto_engine for skcipher/aead/rsa/hash in caam

   - Add Xilinx AES driver

   - Add uacce driver

   - Register zip engine to uacce in hisilicon

   - Add support for OCTEON TX CPT engine in marvell"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (162 commits)
  crypto: af_alg - bool type cosmetics
  crypto: arm[64]/poly1305 - add artifact to .gitignore files
  crypto: caam - limit single JD RNG output to maximum of 16 bytes
  crypto: caam - enable prediction resistance in HRWNG
  bus: fsl-mc: add api to retrieve mc version
  crypto: caam - invalidate entropy register during RNG initialization
  crypto: caam - check if RNG job failed
  crypto: caam - simplify RNG implementation
  crypto: caam - drop global context pointer and init_done
  crypto: caam - use struct hwrng's .init for initialization
  crypto: caam - allocate RNG instantiation descriptor with GFP_DMA
  crypto: ccree - remove duplicated include from cc_aead.c
  crypto: chelsio - remove set but not used variable 'adap'
  crypto: marvell - enable OcteonTX cpt options for build
  crypto: marvell - add the Virtual Function driver for CPT
  crypto: marvell - add support for OCTEON TX CPT engine
  crypto: marvell - create common Kconfig and Makefile for Marvell
  crypto: arm/neon - memzero_explicit aes-cbc key
  crypto: bcm - Use scnprintf() for avoiding potential buffer overflow
  crypto: atmel-i2c - Fix wakeup fail
  ...
2020-04-01 14:47:40 -07:00
Rajat Jain
3a85796296 Input: update SPDX tag for input-event-codes.h
Replace the
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
with
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */

to help coreboot community consume this file without relaxing their
licensing checks.

Signed-off-by: Rajat Jain <rajatja@google.com>
Link: https://lore.kernel.org/r/20200329172513.133548-1-rajatja@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-04-01 13:27:07 -07:00
Linus Torvalds
29d9f30d4c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:
 "Highlights:

   1) Fix the iwlwifi regression, from Johannes Berg.

   2) Support BSS coloring and 802.11 encapsulation offloading in
      hardware, from John Crispin.

   3) Fix some potential Spectre issues in qtnfmac, from Sergey
      Matyukevich.

   4) Add TTL decrement action to openvswitch, from Matteo Croce.

   5) Allow paralleization through flow_action setup by not taking the
      RTNL mutex, from Vlad Buslov.

   6) A lot of zero-length array to flexible-array conversions, from
      Gustavo A. R. Silva.

   7) Align XDP statistics names across several drivers for consistency,
      from Lorenzo Bianconi.

   8) Add various pieces of infrastructure for offloading conntrack, and
      make use of it in mlx5 driver, from Paul Blakey.

   9) Allow using listening sockets in BPF sockmap, from Jakub Sitnicki.

  10) Lots of parallelization improvements during configuration changes
      in mlxsw driver, from Ido Schimmel.

  11) Add support to devlink for generic packet traps, which report
      packets dropped during ACL processing. And use them in mlxsw
      driver. From Jiri Pirko.

  12) Support bcmgenet on ACPI, from Jeremy Linton.

  13) Make BPF compatible with RT, from Thomas Gleixnet, Alexei
      Starovoitov, and your's truly.

  14) Support XDP meta-data in virtio_net, from Yuya Kusakabe.

  15) Fix sysfs permissions when network devices change namespaces, from
      Christian Brauner.

  16) Add a flags element to ethtool_ops so that drivers can more simply
      indicate which coalescing parameters they actually support, and
      therefore the generic layer can validate the user's ethtool
      request. Use this in all drivers, from Jakub Kicinski.

  17) Offload FIFO qdisc in mlxsw, from Petr Machata.

  18) Support UDP sockets in sockmap, from Lorenz Bauer.

  19) Fix stretch ACK bugs in several TCP congestion control modules,
      from Pengcheng Yang.

  20) Support virtual functiosn in octeontx2 driver, from Tomasz
      Duszynski.

  21) Add region operations for devlink and use it in ice driver to dump
      NVM contents, from Jacob Keller.

  22) Add support for hw offload of MACSEC, from Antoine Tenart.

  23) Add support for BPF programs that can be attached to LSM hooks,
      from KP Singh.

  24) Support for multiple paths, path managers, and counters in MPTCP.
      From Peter Krystad, Paolo Abeni, Florian Westphal, Davide Caratti,
      and others.

  25) More progress on adding the netlink interface to ethtool, from
      Michal Kubecek"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2121 commits)
  net: ipv6: rpl_iptunnel: Fix potential memory leak in rpl_do_srh_inline
  cxgb4/chcr: nic-tls stats in ethtool
  net: dsa: fix oops while probing Marvell DSA switches
  net/bpfilter: remove superfluous testing message
  net: macb: Fix handling of fixed-link node
  net: dsa: ksz: Select KSZ protocol tag
  netdevsim: dev: Fix memory leak in nsim_dev_take_snapshot_write
  net: stmmac: add EHL 2.5Gbps PCI info and PCI ID
  net: stmmac: add EHL PSE0 & PSE1 1Gbps PCI info and PCI ID
  net: stmmac: create dwmac-intel.c to contain all Intel platform
  net: dsa: bcm_sf2: Support specifying VLAN tag egress rule
  net: dsa: bcm_sf2: Add support for matching VLAN TCI
  net: dsa: bcm_sf2: Move writing of CFP_DATA(5) into slicing functions
  net: dsa: bcm_sf2: Check earlier for FLOW_EXT and FLOW_MAC_EXT
  net: dsa: bcm_sf2: Disable learning for ASP port
  net: dsa: b53: Deny enslaving port 7 for 7278 into a bridge
  net: dsa: b53: Prevent tagged VLAN on port 7 for 7278
  net: dsa: b53: Restore VLAN entries upon (re)configuration
  net: dsa: bcm_sf2: Fix overflow checks
  hv_netvsc: Remove unnecessary round_up for recv_completion_cnt
  ...
2020-03-31 17:29:33 -07:00
Linus Torvalds
dfabb077d6 MMC core:
- Add support for host software queue for (e)MMC/SD
  - Throttle polling rate for CMD6
  - Update CMD13 busy condition check for CMD6 commands
  - Improve busy detect polling for erase/trim/discard/HPI
  - Fixup support for HW busy detection for HPI commands
  - Re-work and improve support for eMMC sanitize commands
 
 MMC host:
  - mmci: Add support for sdmmc variant revision 2.0
  - mmci_sdmmc: Improve support for busyend detection
  - mmci_sdmmc: Fixup support for signal voltage switch
  - mmci_sdmmc: Add support for tuning with delay block
  - mtk-sd: Fix another SDIO irq issue
  - sdhci: Disable native card detect when GPIO based type exist
  - sdhci: Add option to defer request completion
  - sdhci_am654: Add support to set a tap value per speed mode
  - sdhci-esdhc-imx: Add support for i.MX8MM based variant
  - sdhci-esdhc-imx: Fixup support for standard tuning on i.MX8 usdhc
  - sdhci-esdhc-imx: Optimize for strobe/clock dll settings
  - sdhci-esdhc-imx: Fixup support for system and runtime suspend/resume
  - sdhci-iproc: Update regulator/bus-voltage management for bcm2711
  - sdhci-msm: Prevent clock gating with PWRSAVE_DLL on broken variants
  - sdhci-msm: Fix management of CQE during SDHCI reset
  - sdhci-of-arasan: Add support for auto tuning on ZynqMP based platforms
  - sdhci-omap: Add support for system suspend/resume
  - sdhci-sprd: Add support for HW busy detection
  - sdhci-sprd: Enable support host software queue
  - sdhci-tegra: Add support for HW busy detection
  - tmio/renesas_sdhi: Enforce retune after runtime suspend
  - renesas_sdhi: Use manual tap correction for HS400 on some variants
  - renesas_sdhi: Add support for manual correction of tap values for tunings
 -----BEGIN PGP SIGNATURE-----
 
 iQJLBAABCgA1FiEEugLDXPmKSktSkQsV/iaEJXNYjCkFAl6CGT8XHHVsZi5oYW5z
 c29uQGxpbmFyby5vcmcACgkQ/iaEJXNYjClFWg/+LzX09vHBOfAu7hT/RokcTaBT
 uQnSAfmhkBI+CZerVulPjDX9lFpG2Jb/fu44Ae9EqOAOESAgsTJpxywRRO2f+aNL
 ie9mc0WOkmz1wuAbqYPJImES0CIL2WNpivovLgquRWyltbneh+ImkCbqoWmDYff7
 uIuIC4EPhrWYJczdKr5RCw6HVbsNEAgAr6oJEbmzC63HciCPx5Zo99FN5WHoyRnf
 3c3Ehc4wkVy5iu/wlXqmRdvuayDHhAAmVq6FP5J3IfuoeES3EYeKHc2Ej+pwhYi9
 IFCrO8RDKEu3/o5hLp60ShhF7N/LGWYsl+5KfrwOQ6YPyMLYawR6L0iTYSqkQijy
 3admTGD4OGFuN/8DvQb0yUwhSpRm/Dj+jBZTP3uk9FJHteFlLNHnzREk7weo8i/R
 2WNDSbbV3+TudfC0uC4ipsHtDoidyds+TvR/ebO53pH2Dcr/z6h7i+1tKczA2rK4
 x9mqXhOsskNZC26/UBb9K2oElRON4XDv+VZdQI5ddDuabIYIswXMWLYD1TGYoX5z
 1PXSrrj/Jl/Sz65ZpabKJOexa24s2uThvpOnrGCy2aDc/tbDpcvVhKwL6NX9iRK0
 yYKpwy9yWCGMryVfLI+ahJpvJfQDY4ufKpLC2429LVvgFvNZDG233ZcZhdlhoLNG
 nWh9qHTGTPWo/213yx0=
 =gILc
 -----END PGP SIGNATURE-----

Merge tag 'mmc-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Add support for host software queue for (e)MMC/SD
   - Throttle polling rate for CMD6
   - Update CMD13 busy condition check for CMD6 commands
   - Improve busy detect polling for erase/trim/discard/HPI
   - Fixup support for HW busy detection for HPI commands
   - Re-work and improve support for eMMC sanitize commands

  MMC host:
   - mmci:
       * Add support for sdmmc variant revision 2.0
   - mmci_sdmmc:
       * Improve support for busyend detection
       * Fixup support for signal voltage switch
       * Add support for tuning with delay block
   - mtk-sd:
       * Fix another SDIO irq issue
   - sdhci:
       * Disable native card detect when GPIO based type exist
   - sdhci:
       * Add option to defer request completion
   - sdhci_am654:
       * Add support to set a tap value per speed mode
   - sdhci-esdhc-imx:
       * Add support for i.MX8MM based variant
       * Fixup support for standard tuning on i.MX8 usdhc
       * Optimize for strobe/clock dll settings
       * Fixup support for system and runtime suspend/resume
   - sdhci-iproc:
       * Update regulator/bus-voltage management for bcm2711
   - sdhci-msm:
       * Prevent clock gating with PWRSAVE_DLL on broken variants
       * Fix management of CQE during SDHCI reset
   - sdhci-of-arasan:
       * Add support for auto tuning on ZynqMP based platforms
   - sdhci-omap:
       * Add support for system suspend/resume
   - sdhci-sprd:
       * Add support for HW busy detection
       * Enable support host software queue
   - sdhci-tegra:
       * Add support for HW busy detection
   - tmio/renesas_sdhi:
       * Enforce retune after runtime suspend
   - renesas_sdhi:
       * Use manual tap correction for HS400 on some variants
       * Add support for manual correction of tap values for tunings"

* tag 'mmc-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (86 commits)
  mmc: cavium-octeon: remove nonsense variable coercion
  mmc: mediatek: fix SDIO irq issue
  mmc: mmci_sdmmc: Fix clear busyd0end irq flag
  dt-bindings: mmc: Fix node name in an example
  mmc: core: Re-work the code for eMMC sanitize
  mmc: sdhci: use FIELD_GET for preset value bit masks
  mmc: sdhci-of-at91: Display clock changes for debug purpose only
  mmc: sdhci: iproc: Add custom set_power() callback for bcm2711
  mmc: sdhci: am654: Use sdhci_set_power_and_voltage()
  mmc: sdhci: at91: Use sdhci_set_power_and_voltage()
  mmc: sdhci: milbeaut: Use sdhci_set_power_and_voltage()
  mmc: sdhci: arasan: Use sdhci_set_power_and_voltage()
  mmc: sdhci: Introduce sdhci_set_power_and_bus_voltage()
  mmc: vub300: Use scnprintf() for avoiding potential buffer overflow
  dt-bindings: mmc: synopsys-dw-mshc: fix clock-freq-min-max in example
  sdhci: tegra: Enable MMC_CAP_WAIT_WHILE_BUSY host capability
  sdhci: tegra: Implement Tegra specific set_timeout callback
  mmc: sdhci-omap: Add Support for Suspend/Resume
  mmc: renesas_sdhi: simplify execute_tuning
  mmc: renesas_sdhi: Use BITS_PER_LONG helper
  ...
2020-03-31 16:13:09 -07:00
Linus Torvalds
15c981d16d for-5.7-tag
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE8rQSAMVO+zA4DBdWxWXV+ddtWDsFAl6CDIMACgkQxWXV+ddt
 WDuJ9g/+NTVt+OXAX3G4VLAIR6EjugREAmiHPlojM7scKsmkBuH9BN35+2EPj+yS
 rSmdL01nOH3gyqe+RzAc1EEiujH/9uDpkNf4zE1tGtj9m5Useqj8ZNmiG/BN0PmR
 OJZkVb8DXUHEXIFscHjQJPP60kFZoqIovS7qZbDh4992+p98lTiUUEI6SPanVYeR
 QysXxmafty03hQMFW93ohFZemwAELVVI44nHxxcmOHT5BbIIopXrkInkkchB9I6b
 l+tIJx1gjL6k0D3v/TTqRuD+wGCE8InJgtiuEOf0WkHp2YXUlSDaKAnF/j9Le4oe
 eOgc50LtA3YNGmZ2m5vTeRjBeU9qUPWjJWJ2urp87oIrxX5x7B5Hsjxdnn28P0yZ
 dl/dt9HxeCKFgaRrMZYETYq9VBt0IMxiOIG9w5fukB9qnC6Dd05dXyQB0slg0+l1
 chn5p0FtMS74cvXB32jW7N0fwxWNt6KI4zBvomabJGYZQd6+dyDO8l8Od86vvve/
 w7KgRy7CFBjc9JOCyLTvS8eEhu/qAVc07phSblpdNnyzPFjWWTdZySON/qQYvUCf
 cGDiq+5+1d1+kWuEjtYNzvxon2AaAfg7UBZm5FrjN735ojTQXqm2vi3rrurcU5AZ
 ItmiU6DMre5EGZ+hfWgSPXDkeqx/JYbtDuUwWbNg6svTXaKKnmI=
 =1m9l
 -----END PGP SIGNATURE-----

Merge tag 'for-5.7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "A number of core changes that make things work better in general, code
  is simpler and cleaner.

  Core changes:

   - per-inode file extent tree, for in memory tracking of contiguous
     extent ranges to make sure i_size adjustments are accurate

   - tree root structures are protected by reference counts, replacing
     SRCU that did not cover some cases

   - leak detector for tree root structures

   - per-transaction pinned extent tracking

   - buffer heads are replaced by bios for super block access

   - speedup of extent back reference resolution, on an example test
     scenario the runtime of send went down from a hour to minutes

   - factor out locking scheme used for subvolume writer and NOCOW
     exclusion, abstracted as DREW lock, double reader-writer exclusion
     (allow either readers or writers)

   - cleanup and abstract extent allocation policies, preparation for
     zoned device support

   - make reflink/clone_range work on inline extents

   - add more cancellation point for relocation, improves long response
     from 'balance cancel'

   - add page migration callback for data pages

   - switch to guid for uuids, with additional cleanups of the interface

   - make ranged full fsyncs more efficient

   - removal of obsolete ioctl flag BTRFS_SUBVOL_CREATE_ASYNC

   - remove b-tree readahead from delayed refs paths, avoiding seek and
     read unnecessary blocks

  Features:

   - v2 of ioctl to delete subvolumes, allowing to delete by id and more
     future extensions

  Fixes:

   - fix qgroup rescan worker that could block umount

   - fix crash during unmount due to race with delayed inode workers

   - fix dellaloc flushing logic that could create unnecessary chunks
     under heavy load

   - fix missing file extent item for hole after ranged fsync

   - several fixes in relocation error handling

  Other:

   - more documentation of relocation, device replace, space
     reservations

   - many random cleanups"

* tag 'for-5.7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (210 commits)
  btrfs: fix missing semaphore unlock in btrfs_sync_file
  btrfs: use nofs allocations for running delayed items
  btrfs: sysfs: Use scnprintf() instead of snprintf()
  btrfs: do not resolve backrefs for roots that are being deleted
  btrfs: track reloc roots based on their commit root bytenr
  btrfs: restart relocate_tree_blocks properly
  btrfs: reloc: reorder reservation before root selection
  btrfs: do not readahead in build_backref_tree
  btrfs: do not use readahead for running delayed refs
  btrfs: Remove async_transid from btrfs_mksubvol/create_subvol/create_snapshot
  btrfs: Remove transid argument from btrfs_ioctl_snap_create_transid
  btrfs: Remove BTRFS_SUBVOL_CREATE_ASYNC support
  btrfs: kill the subvol_srcu
  btrfs: make btrfs_cleanup_fs_roots use the radix tree lock
  btrfs: don't take an extra root ref at allocation time
  btrfs: hold a ref on the root on the dead roots list
  btrfs: make inodes hold a ref on their roots
  btrfs: move the root freeing stuff into btrfs_put_root
  btrfs: move ino_cache_inode dropping out of btrfs_free_fs_root
  btrfs: make the extent buffer leak check per fs info
  ...
2020-03-31 13:00:16 -07:00
Linus Torvalds
1455c69900 fscrypt updates for 5.7
Add an ioctl FS_IOC_GET_ENCRYPTION_NONCE which retrieves a file's
 encryption nonce.  This makes it easier to write automated tests which
 verify that fscrypt is doing the encryption correctly.
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCXoIg/RQcZWJpZ2dlcnNA
 Z29vZ2xlLmNvbQAKCRDzXCl4vpKOK2mZAQDjEil0Kf8AqZhjPuJSRrbifkzEPfu+
 4EmERSyBZ5OCLgEA155kKnL5jiz7b5DRS9wGEw+drGpW8I7WfhTGv/XjoQs=
 =2jU9
 -----END PGP SIGNATURE-----

Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt

Pull fscrypt updates from Eric Biggers:
 "Add an ioctl FS_IOC_GET_ENCRYPTION_NONCE which retrieves a file's
  encryption nonce.

  This makes it easier to write automated tests which verify that
  fscrypt is doing the encryption correctly"

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
  ubifs: wire up FS_IOC_GET_ENCRYPTION_NONCE
  f2fs: wire up FS_IOC_GET_ENCRYPTION_NONCE
  ext4: wire up FS_IOC_GET_ENCRYPTION_NONCE
  fscrypt: add FS_IOC_GET_ENCRYPTION_NONCE ioctl
2020-03-31 12:58:36 -07:00
Paolo Bonzini
4f4af841f0 KVM PPC update for 5.7
* Add a capability for enabling secure guests under the Protected
   Execution Framework ultravisor
 
 * Various bug fixes and cleanups.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQEcBAABCAAGBQJegnq3AAoJEJ2a6ncsY3GfrU8IANpaxS7kTAsW3ZN0wJnP2PHq
 i8j7ZPlCVLpkQWArrMyMimDLdiN9VP7lvaWonAWjG0HJrxlmMUUVnwVSMuPTXhWY
 vSwEqhUXwSF5KKxN7DYkgxqaKFxkElJIubVE/AYJjH9zFpu9ca4vM5sCxnzWcvS3
 hxPNe756nKhFH9xhrC/9NRUZWmDAiv75wvzq+5DRKbSVPJGJugchdIPBbi3Yrr7P
 qxnUCPZdCxzXXU94bfQl038wrjSMR3S7b4FvekJ12go2FalujqzsL2lVtift4Rf0
 jvu+RIINcmTiaQqclY332j7l24LZ6Pni456RygT5OwFxuYoxWKZRafN16JmaMCo=
 =rpJL
 -----END PGP SIGNATURE-----

Merge tag 'kvm-ppc-next-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD

KVM PPC update for 5.7

* Add a capability for enabling secure guests under the Protected
  Execution Framework ultravisor

* Various bug fixes and cleanups.
2020-03-31 10:45:49 -04:00
Paolo Bonzini
cf39d37539 KVM/arm updates for Linux 5.7
- GICv4.1 support
 - 32bit host removal
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAl6DKKIPHG1hekBrZXJu
 ZWwub3JnAAoJECPQ0LrRPXpDDe0P/30Oda6HJdcUY+g0dnHkH8N7t+VKjPPnihlX
 WBaT0Y4SzMsfAtG5lQqS48A50dXKWW70QvwkZjxu7abQhYFWGd2SGtTQxwqJXT8J
 I6MBh4r9xrIfiqzVT2BXslA6id5H6wCyyFI6vKm/IFkIu1J6JtwnKakQ0CIddS1d
 Blbgj5jcxGw+2xOppHCQXbWwwDdmYWkMZEBZjmhkezddqLDK+oaAUiUhHHHizTsB
 kLjgqYBVENpR1zDIsGpQAJloKXAiHfBQshQAmnhnBNzXE60LZ0n0/iODU9U5FDEO
 5j0DRWccKvsIMsUh7JpPr5xerGJ0rqk1IwPC2JcyzfRbvRLMpK1IOWfhI5Tg5lbP
 4Ev96QLEMBnKOWMSE0MqnMdq6JPzDLA6WZ28HZe2nc3/oWNgsSDtlXigx4xFFxTX
 zfc2YpAgFu3xJkPf8PtWTFvItm0AvFNFynPg0Rr/NsGf/FGeszYR4cLcHmv5NlWS
 IiV4+lgnlmr2LZr3VjUaumbtWIpuVF4Db5Al2K2E/PCN7ObfEkyCweDic8ophkH8
 sMS9TI38aH1Efy+I2Nfxxqpy8BcElZAMrAWt9R27A4JRLHdr7j5DsGnyRigXHgRe
 pFgbqtk/EjWkHwjaJVg8kPxf2+2P05VZsQeGG721nbKAIKDetM3RA2BflexdsptY
 kXplNsVr
 =eILh
 -----END PGP SIGNATURE-----

Merge tag 'kvmarm-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm updates for Linux 5.7

- GICv4.1 support
- 32bit host removal
2020-03-31 10:44:53 -04:00
Takashi Iwai
b6f69c7955 Revert "ALSA: uapi: Drop asound.h inclusion from asoc.h"
This reverts commit 645c08f17f
which was reported to break the build a program using this header.

The original issue was addressed in the alsa-lib side recently, so we
can make the header more self-contained again.

Reported-by: Dmitry V. Levin <ldv@altlinux.org>
Fixes: 645c08f17f ("ALSA: uapi: Drop asound.h inclusion from asoc.h")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200331090023.8112-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-03-31 11:01:12 +02:00
Dave Airlie
5fc0df93fc Linux 5.6
-----BEGIN PGP SIGNATURE-----
 
 iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl6BIG4eHHRvcnZhbGRz
 QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGlHUH/RCFve2sfHRPjRW+
 xR5SaLVAw6XKvtKBq7yvKmHEwqNJnL79IHyqqtSrtfFr2FfaH/KvYiCbbAezvSrM
 np0udGu7STKGd21CWuyEZJudyhXkOwMRNiFiCXWp7rs35oh8T0TpJxMzo2Nc1nLk
 JFQPqAP6OSvq4IkWEywKQI+Au3Z1IBf83xVjZ1s+MKPQHYD49x2hc4cQntL5/cnm
 a3DoR2iBkYiGZCZ9dDqAqJTnMQIiCbACdZXgGjNRUpdyA/dtAjsMl11NPYHm8TA2
 3AHBupAK50WBZGad6xv2qKQyScsmoJG2mv92QjlOFz0Tpiu6rLnDlLYREDVB6YH6
 qbLDsc8=
 =XEIU
 -----END PGP SIGNATURE-----

Merge v5.6 into drm-next

msm needed rc6, so I just went and merged release
(msm has been in drm-next outside of this tree)

Signed-off-by: Dave Airlie <airlied@redhat.com>
2020-03-31 15:15:47 +10:00
David S. Miller
ed52f2c608 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 19:52:37 -07:00
David S. Miller
d9679cd985 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says:

====================
Netfilter/IPVS updates for net-next

The following patchset contains Netfilter/IPVS updates for net-next:

1) Add support to specify a stateful expression in set definitions,
   this allows users to specify e.g. counters per set elements.

2) Flowtable software counter support.

3) Flowtable hardware offload counter support, from wenxu.

3) Parallelize flowtable hardware offload requests, from Paul Blakey.
   This includes a patch to add one work entry per offload command.

4) Several patches to rework nf_queue refcount handling, from Florian
   Westphal.

4) A few fixes for the flowtable tunnel offload: Fix crash if tunneling
   information is missing and set up indirect flow block as TC_SETUP_FT,
   patch from wenxu.

5) Stricter netlink attribute sanity check on filters, from Romain Bellan
   and Florent Fourcot.

5) Annotations to make sparse happy, from Jules Irenge.

6) Improve icmp errors in debugging information, from Haishuang Yan.

7) Fix warning in IPVS icmp error debugging, from Haishuang Yan.

8) Fix endianess issue in tcp extension header, from Sergey Marinkevich.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 19:40:46 -07:00
Ido Schimmel
1e8c661989 devlink: Add packet trap policers support
Devices capable of offloading the kernel's datapath and perform
functions such as bridging and routing must also be able to send (trap)
specific packets to the kernel (i.e., the CPU) for processing.

For example, a device acting as a multicast-aware bridge must be able to
trap IGMP membership reports to the kernel for processing by the bridge
module.

In most cases, the underlying device is capable of handling packet rates
that are several orders of magnitude higher compared to those that can
be handled by the CPU.

Therefore, in order to prevent the underlying device from overwhelming
the CPU, devices usually include packet trap policers that are able to
police the trapped packets to rates that can be handled by the CPU.

This patch allows capable device drivers to register their supported
packet trap policers with devlink. User space can then tune the
parameters of these policer (currently, rate and burst size) and read
from the device the number of packets that were dropped by the policer,
if supported.

Subsequent patches in the series will allow device drivers to create
default binding between these policers and packet trap groups and allow
user space to change the binding.

v2:
* Add 'strict_start_type' in devlink policy
* Have device drivers provide max/min rate/burst size for each policer.
  Use them to check validity of user provided parameters

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 17:54:58 -07:00
Andrii Nakryiko
0c991ebc8c bpf: Implement bpf_prog replacement for an active bpf_cgroup_link
Add new operation (LINK_UPDATE), which allows to replace active bpf_prog from
under given bpf_link. Currently this is only supported for bpf_cgroup_link,
but will be extended to other kinds of bpf_links in follow-up patches.

For bpf_cgroup_link, implemented functionality matches existing semantics for
direct bpf_prog attachment (including BPF_F_REPLACE flag). User can either
unconditionally set new bpf_prog regardless of which bpf_prog is currently
active under given bpf_link, or, optionally, can specify expected active
bpf_prog. If active bpf_prog doesn't match expected one, no changes are
performed, old bpf_link stays intact and attached, operation returns
a failure.

cgroup_bpf_replace() operation is resolving race between auto-detachment and
bpf_prog update in the same fashion as it's done for bpf_link detachment,
except in this case update has no way of succeeding because of target cgroup
marked as dying. So in this case error is returned.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200330030001.2312810-3-andriin@fb.com
2020-03-30 17:36:33 -07:00
Andrii Nakryiko
af6eea5743 bpf: Implement bpf_link-based cgroup BPF program attachment
Implement new sub-command to attach cgroup BPF programs and return FD-based
bpf_link back on success. bpf_link, once attached to cgroup, cannot be
replaced, except by owner having its FD. Cgroup bpf_link supports only
BPF_F_ALLOW_MULTI semantics. Both link-based and prog-based BPF_F_ALLOW_MULTI
attachments can be freely intermixed.

To prevent bpf_cgroup_link from keeping cgroup alive past the point when no
BPF program can be executed, implement auto-detachment of link. When
cgroup_bpf_release() is called, all attached bpf_links are forced to release
cgroup refcounts, but they leave bpf_link otherwise active and allocated, as
well as still owning underlying bpf_prog. This is because user-space might
still have FDs open and active, so bpf_link as a user-referenced object can't
be freed yet. Once last active FD is closed, bpf_link will be freed and
underlying bpf_prog refcount will be dropped. But cgroup refcount won't be
touched, because cgroup is released already.

The inherent race between bpf_cgroup_link release (from closing last FD) and
cgroup_bpf_release() is resolved by both operations taking cgroup_mutex. So
the only additional check required is when bpf_cgroup_link attempts to detach
itself from cgroup. At that time we need to check whether there is still
cgroup associated with that link. And if not, exit with success, because
bpf_cgroup_link was already successfully detached.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Roman Gushchin <guro@fb.com>
Link: https://lore.kernel.org/bpf/20200330030001.2312810-2-andriin@fb.com
2020-03-30 17:35:59 -07:00
Linus Torvalds
9b82f05f86 Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
 "The main changes in this cycle were:

  Kernel side changes:

   - A couple of x86/cpu cleanups and changes were grandfathered in due
     to patch dependencies. These clean up the set of CPU model/family
     matching macros with a consistent namespace and C99 initializer
     style.

   - A bunch of updates to various low level PMU drivers:
       * AMD Family 19h L3 uncore PMU
       * Intel Tiger Lake uncore support
       * misc fixes to LBR TOS sampling

   - optprobe fixes

   - perf/cgroup: optimize cgroup event sched-in processing

   - misc cleanups and fixes

  Tooling side changes are to:

   - perf {annotate,expr,record,report,stat,test}

   - perl scripting

   - libapi, libperf and libtraceevent

   - vendor events on Intel and S390, ARM cs-etm

   - Intel PT updates

   - Documentation changes and updates to core facilities

   - misc cleanups, fixes and other enhancements"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (89 commits)
  cpufreq/intel_pstate: Fix wrong macro conversion
  x86/cpu: Cleanup the now unused CPU match macros
  hwrng: via_rng: Convert to new X86 CPU match macros
  crypto: Convert to new CPU match macros
  ASoC: Intel: Convert to new X86 CPU match macros
  powercap/intel_rapl: Convert to new X86 CPU match macros
  PCI: intel-mid: Convert to new X86 CPU match macros
  mmc: sdhci-acpi: Convert to new X86 CPU match macros
  intel_idle: Convert to new X86 CPU match macros
  extcon: axp288: Convert to new X86 CPU match macros
  thermal: Convert to new X86 CPU match macros
  hwmon: Convert to new X86 CPU match macros
  platform/x86: Convert to new CPU match macros
  EDAC: Convert to new X86 CPU match macros
  cpufreq: Convert to new X86 CPU match macros
  ACPI: Convert to new X86 CPU match macros
  x86/platform: Convert to new CPU match macros
  x86/kernel: Convert to new CPU match macros
  x86/kvm: Convert to new CPU match macros
  x86/perf/events: Convert to new CPU match macros
  ...
2020-03-30 16:40:08 -07:00
Linus Torvalds
db34c5ffee USB / PHY patches for 5.7-rc1
Here are the big set of USB and PHY driver patches for 5.7-rc1.
 
 Nothing huge here, some new PHY drivers, loads of USB gadget fixes and
 updates, xhci updates, usb-serial driver updates and new device ids, and
 other minor things.  Full details in the shortlog.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXoHL9w8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ymz6wCcDwDTZouXj+0B37q+kwlCQQPyLukAn2CxKfrM
 d+wScRHWoZutA8IdzqaU
 =5+jn
 -----END PGP SIGNATURE-----

Merge tag 'usb-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / PHY updates from Greg KH:
 "Here are the big set of USB and PHY driver patches for 5.7-rc1.

  Nothing huge here, some new PHY drivers, loads of USB gadget fixes and
  updates, xhci updates, usb-serial driver updates and new device ids,
  and other minor things. Full details in the shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'usb-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (239 commits)
  USB: cdc-acm: restore capability check order
  usb: cdns3: make signed 1 bit bitfields unsigned
  usb: gadget: fsl: remove unused variable 'driver_desc'
  usb: gadget: f_fs: Fix use after free issue as part of queue failure
  usb: typec: Correct the documentation for typec_cable_put()
  USB: serial: io_edgeport: fix slab-out-of-bounds read in edge_interrupt_callback
  USB: serial: option: add Wistron Neweb D19Q1
  USB: serial: option: add BroadMobi BM806U
  USB: serial: option: add support for ASKEY WWHC050
  usb: core: Add ACPI support for USB interface devices
  driver core: platform: Reimplement devm_platform_ioremap_resource
  usb: dwc2: convert to devm_platform_get_and_ioremap_resource
  usb: host: hisilicon: convert to devm_platform_get_and_ioremap_resource
  usb: host: xhci-plat: convert to devm_platform_get_and_ioremap_resource
  drivers: provide devm_platform_get_and_ioremap_resource()
  phy: qcom-qusb2: Add new overriding tuning parameters in QUSB2 V2 PHY
  phy: qcom-qusb2: Add support for overriding tuning parameters in QUSB2 V2 PHY
  dt-bindings: phy: qcom-qusb2: Add support for overriding Phy tuning parameters
  phy: qcom-qusb2: Add generic QUSB2 V2 PHY support
  dt-bindings: phy: qcom,qusb2: Add compatibles for QUSB2 V2 phy and SC7180
  ...
2020-03-30 13:54:11 -07:00
Joe Stringer
cf7fbe660f bpf: Add socket assign support
Add support for TPROXY via a new bpf helper, bpf_sk_assign().

This helper requires the BPF program to discover the socket via a call
to bpf_sk*_lookup_*(), then pass this socket to the new helper. The
helper takes its own reference to the socket in addition to any existing
reference that may or may not currently be obtained for the duration of
BPF processing. For the destination socket to receive the traffic, the
traffic must be routed towards that socket via local route. The
simplest example route is below, but in practice you may want to route
traffic more narrowly (eg by CIDR):

  $ ip route add local default dev lo

This patch avoids trying to introduce an extra bit into the skb->sk, as
that would require more invasive changes to all code interacting with
the socket to ensure that the bit is handled correctly, such as all
error-handling cases along the path from the helper in BPF through to
the orphan path in the input. Instead, we opt to use the destructor
variable to switch on the prefetch of the socket.

Signed-off-by: Joe Stringer <joe@wand.net.nz>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200329225342.16317-2-joe@wand.net.nz
2020-03-30 13:45:04 -07:00
Linus Torvalds
063d194224 media updates for v5.7-rc1
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE+QmuaPwR3wnBdVwACF8+vY7k4RUFAl6Bvm0ACgkQCF8+vY7k
 4RViMQ//baNJyAA8/Hpxz1w5+nL5hsTOhf2PcPgnCLkRVQnIiKMZoq7AS5KWtbqu
 im0SM6nWduGc2T/44Ew13YmBnuWMdXL9Gs8XtAkNakgSV1UM+A3pRuOWRYCyU3Ts
 1QDsc3N7oY9cvyJGWOlqdcA4gp4AaKxjS6M6Z18wYBk/jYSCcj4ZVecT89DYeeM7
 wFORkv/xSdgC3eoKWEwTyglzUmrXKrbfHdcNWrQBg+1SN3WrMYQWCL6nSYMqn0Vu
 f9L5E6jUSx9s6+apxS0OUQmDj78RM1JCEY1P8lgc3tAtVJ+X3yZbxwtpcvujhFPv
 c48NUQeyxAJc7evarvkd73Gwl4buujqHSgiRUovHwqUXHJuGZ3PBTryV9HzbmYYy
 EeHS/23t09F3j9zYtuoDNFIED03Mi+TNeS04cq8OIfwNl7xpUSEV0S/wd11V2308
 cfm6lsogGE9HRbaIxCHgx4AiGFVhbpK1OQt66iYze8r/wyxnN8MVOHGWw+eI4LRK
 9gwh7Wx37k6uCrjfOnLSgx7kcJ+mxSZEYyHJZqqtPm9H1SC68GOxhL/S3Zu7arvK
 eiwFfxJBiunCEfauOx28kaAdvBZVyEvYeDFYl/k+q4DCIGjvK0FXud6QRjNXv24S
 qUXYZKPUALTFOpbkQ3IQiBOQNM4NhF15RzCqRUptVnlF05MSywg=
 =Ve8R
 -----END PGP SIGNATURE-----

Merge tag 'media/v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - New sensor driver: imx219

 - Support for some new pixelformats

 - Support for Sun8i SoC

 - Added more codecs to meson vdec driver

 - Prepare for removing the legacy usbvision driver by moving it to
   staging. This driver has issues and use legacy core APIs. If nobody
   steps up to address those, it is time for its retirement.

 - Several cleanups and improvements on drivers, with the addition of
   new supported boards

* tag 'media/v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (236 commits)
  media: venus: firmware: Ignore secure call error on first resume
  media: mtk-vpu: load vpu firmware from the new location
  media: i2c: video-i2c: fix build errors due to 'imply hwmon'
  media: MAINTAINERS: add myself to co-maintain Hantro G1/G2 for i.MX8MQ
  media: hantro: add initial i.MX8MQ support
  media: dt-bindings: Document i.MX8MQ VPU bindings
  media: vivid: fix incorrect PA assignment to HDMI outputs
  media: hantro: Add linux-rockchip mailing list to MAINTAINERS
  media: cedrus: h264: Fix 4K decoding on H6
  media: siano: Use scnprintf() for avoiding potential buffer overflow
  media: rc: Use scnprintf() for avoiding potential buffer overflow
  media: allegro: create new struct for channel parameters
  media: allegro: move mail definitions to separate file
  media: allegro: pass buffers through firmware
  media: allegro: verify source and destination buffer in VCU response
  media: allegro: handle dependency of bitrate and bitrate_peak
  media: allegro: read bitrate mode directly from control
  media: allegro: make QP configurable
  media: allegro: make frame rate configurable
  media: allegro: skip filler data if possible
  ...
2020-03-30 13:42:05 -07:00
Linus Torvalds
78b0dedd52 updates for seccomp
- allow TSYNC and USER_NOTIF together (Tycho Andersen)
 - Add missing compat_ioctl for notify (Sven Schnelle)
 -----BEGIN PGP SIGNATURE-----
 
 iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAl6BcbwWHGtlZXNjb29r
 QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJuhfD/9NjC6h+l9YNHW2O3bYPxDDjkJq
 1aRInf+/UayTnfwhlZiJj2FFYyPR1gfZXB9CPcniYO/t6tsCdc+0kQdc3uUCPb0y
 ClPp5Pc/u/SwEFgrj5gv/NsEwAVaTPy1ioagefZMENQXj77XcfifF5Mrave+lR3K
 TiZsFItucIRTiEb8YY4xF/t5rn/lBvAqDiYNZwYYVcopnW3kgvOljz6ZRyOstV/B
 J9QrErFfDH9SzPfK/1bZ5GbCUsTRzbGXA281UBhZdkJQaA3yoqK+yv/xKtoaX0WK
 uxLPt2BG3qb21+8JZacJ2L6KQAwm5EdT+OyLyFzUYki23LsJNHEb+UpkoRnyJg5H
 sSSZRj14WH5aK1REGTDLr5tgx5lxkXx/iuxYc4tuM56ToWS4hXNiQFU2cUcdqjSO
 bSKVg1LO9FfTTMecYXUqljoOwAKMVra2nDNCpvkBr/1JMVFZjCfWpjy3ZvHHwpqt
 BpxgfJW250HfnMWpa7k5p6bIP+WMwetwP1yGZx6xNz8j3ZSshIPUqCvTU6zD89CN
 RXHMfnZOxNtq1biI41Ppc5/kCt2t4598BaGsWIWcjhhY8p5Ttq+HGs3tOPsuUXen
 ccGAa/1Co0u5CCxudG4nZ2a/ooeijMx7D5HfvoYvHDQbugR/x4aSZuiw7JiTKBHr
 EZCFZyxvFVqnqlzQ2Q==
 =Ejyd
 -----END PGP SIGNATURE-----

Merge tag 'seccomp-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull seccomp updates from Kees Cook:
 "A couple of seccomp updates. They're both mostly bug fixes that I
  wanted to have sit in linux-next for a while:

   - allow TSYNC and USER_NOTIF together (Tycho Andersen)

   - add missing compat_ioctl for notify (Sven Schnelle)"

* tag 'seccomp-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  seccomp: Add missing compat_ioctl for notify
  seccomp: allow TSYNC and USER_NOTIF together
2020-03-30 12:53:56 -07:00
Linus Torvalds
e59cd88028 for-5.7/io_uring-2020-03-29
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl6BJEMQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpie7D/9gN4zhykYDfcgamfxMtTbpla2PdTnWoJxP
 fjy/Nx2FySakmccaiCGQSQ1rzD1L67UQkJgEH6hPTomJvA4FaOmJ+ZSaExMy55LH
 ZT+nD3zQ9SCuA0DEpfxbsCP1tbnoXSMQNt8Tyh0x8PAoxp5bI0eRczOju1QWLWTS
 tjBEMZNipN6krrV9RPWT0S5Z31/yGr/sXprCSHFV9Ypzwrx58Tj2i6F9gR7FVbLs
 nV2/O8taEn0sMQIz8TVHKol/TBalluGrC4M/bOeS3faP3BPN4TT24Gtc0LAKEibk
 F49/SX7FzwhOdl43Bdkbe2bbL86p+zOLSf0IMBwMm0DJl4aiOljRUYTSYRolgGgm
 Ebw9QhemTwbxxeD2nEriA4EAeYvTx69RDlN2eVilwwfJ48Xz9fVm3GNYG7LISeON
 k3/TyZOBQH2SZ2Hc3oF2Mq9j1UPHXZHUUsUNlNcN+aM9SFHcWkRi6xZWemTJHJZ4
 zFss5RZHo0+RLBa8rrx8xaO8iWrc73+FuRhr9eSsmyPIj+OZ4ezEFRRRHwtk2fgv
 dZvD413AyCI1c+3LlBusESMsrtXyY8p9O9buNTzHy3ZUtHe0ERmYV2m/a83A5pXo
 Kia/5aJbPIC61bAkCCkiVo+W9OASJ6o5+3CXl5sM9lGTbDXjcofzewmd+RHPestx
 xVbzeR9UIw==
 =bYLJ
 -----END PGP SIGNATURE-----

Merge tag 'for-5.7/io_uring-2020-03-29' of git://git.kernel.dk/linux-block

Pull io_uring updates from Jens Axboe:
 "Here are the io_uring changes for this merge window. Light on new
  features this time around (just splice + buffer selection), lots of
  cleanups, fixes, and improvements to existing support. In particular,
  this contains:

   - Cleanup fixed file update handling for stack fallback (Hillf)

   - Re-work of how pollable async IO is handled, we no longer require
     thread offload to handle that. Instead we rely using poll to drive
     this, with task_work execution.

   - In conjunction with the above, allow expendable buffer selection,
     so that poll+recv (for example) no longer has to be a split
     operation.

   - Make sure we honor RLIMIT_FSIZE for buffered writes

   - Add support for splice (Pavel)

   - Linked work inheritance fixes and optimizations (Pavel)

   - Async work fixes and cleanups (Pavel)

   - Improve io-wq locking (Pavel)

   - Hashed link write improvements (Pavel)

   - SETUP_IOPOLL|SETUP_SQPOLL improvements (Xiaoguang)"

* tag 'for-5.7/io_uring-2020-03-29' of git://git.kernel.dk/linux-block: (54 commits)
  io_uring: cleanup io_alloc_async_ctx()
  io_uring: fix missing 'return' in comment
  io-wq: handle hashed writes in chains
  io-uring: drop 'free_pfile' in struct io_file_put
  io-uring: drop completion when removing file
  io_uring: Fix ->data corruption on re-enqueue
  io-wq: close cancel gap for hashed linked work
  io_uring: make spdxcheck.py happy
  io_uring: honor original task RLIMIT_FSIZE
  io-wq: hash dependent work
  io-wq: split hashing and enqueueing
  io-wq: don't resched if there is no work
  io-wq: remove duplicated cancel code
  io_uring: fix truncated async read/readv and write/writev retry
  io_uring: dual license io_uring.h uapi header
  io_uring: io_uring_enter(2) don't poll while SETUP_IOPOLL|SETUP_SQPOLL enabled
  io_uring: Fix unused function warnings
  io_uring: add end-of-bits marker and build time verify it
  io_uring: provide means of removing buffers
  io_uring: add IOSQE_BUFFER_SELECT support for IORING_OP_RECVMSG
  ...
2020-03-30 12:18:49 -07:00
Linus Torvalds
1592614838 for-5.7/drivers-2020-03-29
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl6BJDYQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgplhMD/95jd4nlVetHAo54z+Zk2ExE13+yDamRKyh
 vc7t2tz1reqFOimtVr5aVuTXCTgOx4CpiIox5qcn6qAExN4JtCChOBRGize/0u8S
 ckxnhHbN2C0rfnGldvrYYeNRonFI+7QKimnurWUSYYGN0xqbo21BxJ7dFaohMseo
 q4K8sIW0ctE6AOlw28Jerkg614s2NDGZ7q1laheXnYHn5c9f1m0NaKN/jyTGgr0X
 TLBiLbX2yRrAuvpctBj6Fna6YN7Vdd9jsf2Bt6ipUI1XgHQoVUGMxQNhWPyjsbSv
 GzRQUNAfVcasLzCP/Mj/47144OkUtDDpn2mjeXDaFljLDGFULD+jp/SsOmLCxkPC
 gI7G2yfBvF96/SOyT0JXrLyMcBd1R2vRoASbc5tPu82mZhx7YJZH5WYtOB9h2gra
 RTYo3xcm0EoN6yeMaH+xOuXxTWWInIrgKPONW4H8s7hxEiMt5oFNVBI7vqPr4LVp
 tpfxiKZDavKOofKXogNV4W7mSMP/Ir5Q9Ha4g5SXHBGp0z/PHmnQ0xDGNq0KDnU4
 eNO0UYCFNCNa+0AOhpNxaVuVm9LjrgvyXRjePgOZQ4akhohwHO6DLrHK1f8Hb1vD
 8Ih6uR+F5zZlKsouWro8HLGYm5w40Wq9tbCI8QbPYH6nkGoDmzpPv9jbAeWgJU5c
 KqP/5TBSLA==
 =Bs4E
 -----END PGP SIGNATURE-----

Merge tag 'for-5.7/drivers-2020-03-29' of git://git.kernel.dk/linux-block

Pull block driver updates from Jens Axboe:

 - floppy driver cleanup series from Willy

 - NVMe updates and fixes (Various)

 - null_blk trace improvements (Chaitanya)

 - bcache fixes (Coly)

 - md fixes (via Song)

 - loop block size change optimizations (Martijn)

 - scnprintf() use (Takashi)

* tag 'for-5.7/drivers-2020-03-29' of git://git.kernel.dk/linux-block: (81 commits)
  null_blk: add trace in null_blk_zoned.c
  null_blk: add tracepoint helpers for zoned mode
  block: add a zone condition debug helper
  nvme: cleanup namespace identifier reporting in nvme_init_ns_head
  nvme: rename __nvme_find_ns_head to nvme_find_ns_head
  nvme: refactor nvme_identify_ns_descs error handling
  nvme-tcp: Add warning on state change failure at nvme_tcp_setup_ctrl
  nvme-rdma: Add warning on state change failure at nvme_rdma_setup_ctrl
  nvme: Fix controller creation races with teardown flow
  nvme: Make nvme_uninit_ctrl symmetric to nvme_init_ctrl
  nvme: Fix ctrl use-after-free during sysfs deletion
  nvme-pci: Re-order nvme_pci_free_ctrl
  nvme: Remove unused return code from nvme_delete_ctrl_sync
  nvme: Use nvme_state_terminal helper
  nvme: release ida resources
  nvme: Add compat_ioctl handler for NVME_IOCTL_SUBMIT_IO
  nvmet-tcp: optimize tcp stack TX when data digest is used
  nvme-fabrics: Use scnprintf() for avoiding potential buffer overflow
  nvme-multipath: do not reset on unknown status
  nvmet-rdma: allocate RW ctxs according to mdts
  ...
2020-03-30 11:43:51 -07:00
Eran Ben Elisha
48bb52c80b devlink: Add auto dump flag to health reporter
On low memory system, run time dumps can consume too much memory. Add
administrator ability to disable auto dumps per reporter as part of the
error flow handle routine.

This attribute is not relevant while executing
DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET.

By default, auto dump is activated for any reporter that has a dump method,
as part of the reporter registration to devlink.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:17:34 -07:00
Jiri Pirko
93a129eb8c net: sched: expose HW stats types per action used by drivers
It may be up to the driver (in case ANY HW stats is passed) to select
which type of HW stats he is going to use. Add an infrastructure to
expose this information to user.

$ tc filter add dev enp3s0np1 ingress proto ip handle 1 pref 1 flower dst_ip 192.168.1.1 action drop
$ tc -s filter show dev enp3s0np1 ingress
filter protocol ip pref 1 flower chain 0
filter protocol ip pref 1 flower chain 0 handle 0x1
  eth_type ipv4
  dst_ip 192.168.1.1
  in_hw in_hw_count 2
        action order 1: gact action drop
         random type none pass val 0
         index 1 ref 1 bind 1 installed 10 sec used 10 sec
        Action statistics:
        Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
        backlog 0b 0p requeues 0
        used_hw_stats immediate     <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:06:49 -07:00
Michal Kubecek
5b071c59ed ethtool: provide timestamping information with TSINFO_GET request
Implement TSINFO_GET request to get timestamping information for a network
device. This is traditionally available via ETHTOOL_GET_TS_INFO ioctl
request.

Move part of ethtool_get_ts_info() into common.c so that ioctl and netlink
code use the same logic to get timestamping information from the device.

v3: use "TSINFO" rather than "TIMESTAMP", suggested by Richard Cochran

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:32:37 -07:00
Michal Kubecek
f76510b458 ethtool: add timestamping related string sets
Add three string sets related to timestamping information:

  ETH_SS_SOF_TIMESTAMPING: SOF_TIMESTAMPING_* flags
  ETH_SS_TS_TX_TYPES:      timestamping Tx types
  ETH_SS_TS_RX_FILTERS:    timestamping Rx filters

These will be used for TIMESTAMP_GET request.

v2: avoid compiler warning ("enumeration value not handled in switch")
    in net_hwtstamp_validate()

v3: omit dash in Tx type names ("one-step-*" -> "onestep-*"), suggested by
    Richard Cochran

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:32:36 -07:00
Michal Kubecek
6c5bc8fe4e ethtool: add EEE_NTF notification
Send ETHTOOL_MSG_EEE_NTF notification whenever EEE settings of a network
device are modified using ETHTOOL_MSG_EEE_SET netlink message or
ETHTOOL_SEEE ioctl request.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:32:36 -07:00
Michal Kubecek
fd77be7bd4 ethtool: set EEE settings with EEE_SET request
Implement EEE_SET netlink request to set EEE settings of a network device.
These are traditionally set with ETHTOOL_SEEE ioctl request.

The netlink interface allows setting the EEE status for all link modes
supported by kernel but only first 32 link modes can be set at the moment
as only those are supported by the ethtool_ops callback.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:32:36 -07:00
Michal Kubecek
b7eeefe72e ethtool: provide EEE settings with EEE_GET request
Implement EEE_GET request to get EEE settings of a network device. These
are traditionally available via ETHTOOL_GEEE ioctl request.

The netlink interface allows reporting EEE status for all link modes
supported by kernel but only first 32 link modes are provided at the moment
as only those are reported by the ethtool_ops callback and drivers.

v2: fix alignment (whitespace only)

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:32:36 -07:00
Michal Kubecek
bf37faa386 ethtool: add PAUSE_NTF notification
Send ETHTOOL_MSG_PAUSE_NTF notification whenever pause parameters of
a network device are modified using ETHTOOL_MSG_PAUSE_SET netlink message
or ETHTOOL_SPAUSEPARAM ioctl request.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:32:36 -07:00
Michal Kubecek
3ab879933d ethtool: set pause parameters with PAUSE_SET request
Implement PAUSE_SET netlink request to set pause parameters of a network
device. Thease are traditionally set with ETHTOOL_SPAUSEPARAM ioctl
request.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:32:36 -07:00
Michal Kubecek
7f59fb32b0 ethtool: provide pause parameters with PAUSE_GET request
Implement PAUSE_GET request to get pause parameters of a network device.
These are traditionally available via ETHTOOL_GPAUSEPARAM ioctl request.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:32:36 -07:00
Michal Kubecek
0cf3eac8c9 ethtool: add COALESCE_NTF notification
Send ETHTOOL_MSG_COALESCE_NTF notification whenever coalescing parameters
of a network device are modified using ETHTOOL_MSG_COALESCE_SET netlink
message or ETHTOOL_SCOALESCE ioctl request.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:32:36 -07:00
Michal Kubecek
9881418c75 ethtool: set coalescing parameters with COALESCE_SET request
Implement COALESCE_SET netlink request to set coalescing parameters of
a network device. These are traditionally set with ETHTOOL_SCOALESCE ioctl
request. This commit adds only support for device coalescing parameters,
not per queue coalescing parameters.

Like the ioctl implementation, the generic ethtool code checks if only
supported parameters are modified; if not, first offending attribute is
reported using extack.

v2: fix alignment (whitespace only)

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:32:36 -07:00
Michal Kubecek
217275453b ethtool: provide coalescing parameters with COALESCE_GET request
Implement COALESCE_GET request to get coalescing parameters of a network
device. These are traditionally available via ETHTOOL_GCOALESCE ioctl
request. This commit adds only support for device coalescing parameters,
not per queue coalescing parameters.

Omit attributes with zero values unless they are declared as supported
(i.e. the corresponding bit in ethtool_ops::supported_coalesce_params is
set).

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:32:36 -07:00
Alexander Aring
a7a29f9c36 net: ipv6: add rpl sr tunnel
This patch adds functionality to configure routes for RPL source routing
functionality. There is no IPIP functionality yet implemented which can
be added later when the cases when to use IPv6 encapuslation comes more
clear.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:30:57 -07:00
Alexander Aring
8610c7c6e3 net: ipv6: add support for rpl sr exthdr
This patch adds rpl source routing receive handling. Everything works
only if sysconf "rpl_seg_enabled" and source routing is enabled. Mostly
the same behaviour as IPv6 segmentation routing. To handle compression
and uncompression a rpl.c file is created which contains the necessary
functionality. The receive handling will also care about IPv6
encapsulated so far it's specified as possible nexthdr in RFC 6554.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:30:57 -07:00
Alexander Aring
cfa933d938 include: uapi: linux: add rpl sr header definition
This patch adds a uapi header for rpl struct definition. The segments
data can be accessed over rpl_segaddr or rpl_segdata macros. In case of
compri and compre is zero the segment data is not compressed and can be
accessed by rpl_segaddr. In the other case the compressed data can be
accessed by rpl_segdata and interpreted as byte array.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:30:57 -07:00
Paolo Abeni
01cacb00b3 mptcp: add netlink-based PM
Expose a new netlink family to userspace to control the PM, setting:

 - list of local addresses to be signalled.
 - list of local addresses used to created subflows.
 - maximum number of add_addr option to react

When the msk is fully established, the PM netlink attempts to
announce the 'signal' list via the ADD_ADDR option. Since we
currently lack the ADD_ADDR echo (and related event) only the
first addr is sent.

After exhausting the 'announce' list, the PM tries to create
subflow for each addr in 'local' list, waiting for each
connection to be completed before attempting the next one.

Idea is to add an additional PM hook for ADD_ADDR echo, to allow
the PM netlink announcing multiple addresses, in sequence.

Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:14:49 -07:00
Davide Caratti
5147dfb508 mptcp: allow dumping subflow context to userspace
add ulp-specific diagnostic functions, so that subflow information can be
dumped to userspace programs like 'ss'.

v2 -> v3:
- uapi: use bit macros appropriate for userspace

Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Co-developed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:14:48 -07:00
Mark Starovoytov
791bb3fcaf net: macsec: add support for specifying offload upon link creation
This patch adds new netlink attribute to allow a user to (optionally)
specify the desired offload mode immediately upon MACSec link creation.

Separate iproute patch will be required to support this from user space.

Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 21:34:21 -07:00
David S. Miller
f0b5989745 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor comment conflict in mac80211.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 21:25:29 -07:00
KP Singh
fc611f47f2 bpf: Introduce BPF_PROG_TYPE_LSM
Introduce types and configs for bpf programs that can be attached to
LSM hooks. The programs can be enabled by the config option
CONFIG_BPF_LSM.

Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Brendan Jackman <jackmanb@google.com>
Reviewed-by: Florent Revest <revest@google.com>
Reviewed-by: Thomas Garnier <thgarnie@google.com>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: James Morris <jamorris@linux.microsoft.com>
Link: https://lore.kernel.org/bpf/20200329004356.27286-2-kpsingh@chromium.org
2020-03-30 01:34:00 +02:00
Johannes Berg
88ce642492 um: Implement time-travel=ext
This implements synchronized time-travel mode which - using a special
application on a unix socket - lets multiple machines take part in a
time-travelling simulation together.

The protocol for the unix domain socket is defined in the new file
include/uapi/linux/um_timetravel.h.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2020-03-29 23:29:08 +02:00
Toke Høiland-Jørgensen
92234c8f15 xdp: Support specifying expected existing program when attaching XDP
While it is currently possible for userspace to specify that an existing
XDP program should not be replaced when attaching to an interface, there is
no mechanism to safely replace a specific XDP program with another.

This patch adds a new netlink attribute, IFLA_XDP_EXPECTED_FD, which can be
set along with IFLA_XDP_FD. If set, the kernel will check that the program
currently loaded on the interface matches the expected one, and fail the
operation if it does not. This corresponds to a 'cmpxchg' memory operation.
Setting the new attribute with a negative value means that no program is
expected to be attached, which corresponds to setting the UPDATE_IF_NOEXIST
flag.

A new companion flag, XDP_FLAGS_REPLACE, is also added to explicitly
request checking of the EXPECTED_FD attribute. This is needed for userspace
to discover whether the kernel supports the new attribute.

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/bpf/158515700640.92963.3551295145441017022.stgit@toke.dk
2020-03-28 14:24:41 -07:00
Daniel Borkmann
0f09abd105 bpf: Enable bpf cgroup hooks to retrieve cgroup v2 and ancestor id
Enable the bpf_get_current_cgroup_id() helper for connect(), sendmsg(),
recvmsg() and bind-related hooks in order to retrieve the cgroup v2
context which can then be used as part of the key for BPF map lookups,
for example. Given these hooks operate in process context 'current' is
always valid and pointing to the app that is performing mentioned
syscalls if it's subject to a v2 cgroup. Also with same motivation of
commit 7723628101 ("bpf: Introduce bpf_skb_ancestor_cgroup_id helper")
enable retrieval of ancestor from current so the cgroup id can be used
for policy lookups which can then forbid connect() / bind(), for example.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/d2a7ef42530ad299e3cbb245e6c12374b72145ef.1585323121.git.daniel@iogearbox.net
2020-03-27 19:40:39 -07:00
Daniel Borkmann
f318903c0b bpf: Add netns cookie and enable it for bpf cgroup hooks
In Cilium we're mainly using BPF cgroup hooks today in order to implement
kube-proxy free Kubernetes service translation for ClusterIP, NodePort (*),
ExternalIP, and LoadBalancer as well as HostPort mapping [0] for all traffic
between Cilium managed nodes. While this works in its current shape and avoids
packet-level NAT for inter Cilium managed node traffic, there is one major
limitation we're facing today, that is, lack of netns awareness.

In Kubernetes, the concept of Pods (which hold one or multiple containers)
has been built around network namespaces, so while we can use the global scope
of attaching to root BPF cgroup hooks also to our advantage (e.g. for exposing
NodePort ports on loopback addresses), we also have the need to differentiate
between initial network namespaces and non-initial one. For example, ExternalIP
services mandate that non-local service IPs are not to be translated from the
host (initial) network namespace as one example. Right now, we have an ugly
work-around in place where non-local service IPs for ExternalIP services are
not xlated from connect() and friends BPF hooks but instead via less efficient
packet-level NAT on the veth tc ingress hook for Pod traffic.

On top of determining whether we're in initial or non-initial network namespace
we also have a need for a socket-cookie like mechanism for network namespaces
scope. Socket cookies have the nice property that they can be combined as part
of the key structure e.g. for BPF LRU maps without having to worry that the
cookie could be recycled. We are planning to use this for our sessionAffinity
implementation for services. Therefore, add a new bpf_get_netns_cookie() helper
which would resolve both use cases at once: bpf_get_netns_cookie(NULL) would
provide the cookie for the initial network namespace while passing the context
instead of NULL would provide the cookie from the application's network namespace.
We're using a hole, so no size increase; the assignment happens only once.
Therefore this allows for a comparison on initial namespace as well as regular
cookie usage as we have today with socket cookies. We could later on enable
this helper for other program types as well as we would see need.

  (*) Both externalTrafficPolicy={Local|Cluster} types
  [0] https://github.com/cilium/cilium/blob/master/bpf/bpf_sock.c

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/c47d2346982693a9cf9da0e12690453aded4c788.1585323121.git.daniel@iogearbox.net
2020-03-27 19:40:38 -07:00
Linus Walleij
06dd3f31cb Linux 5.6-rc7
-----BEGIN PGP SIGNATURE-----
 
 iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl54EZgeHHRvcnZhbGRz
 QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGLpwIAJv475oyWJDefyZn
 Va5GF+LgR3CMGnfOQXyLXphFUU0fYQtuHb6E5w2hmMpovNrlbpzuypuOetqN1gtQ
 DpDgt6htHlBAJCNkNnHOjEARmMZo64D2dnLlTfa6fjJMc4tg3yk/oMFXFpiP0kdd
 ena4DetB293IF2EjP7RWfVbXzbZzG4sLmIsOmUiFH1H1nhTV8tZWG06KvUcwuCSU
 AfrXiOaVj6npiShszjdODYaFRL6mYh5es7q02wQpKeWdZHRU8IuKTgywiOjh6uD4
 J2bXvz0qbDN/2Zgj73H8EfkAP7zm6nCHifQiUm9uRsjzpcfjFRYIn+4/4LAzCIjm
 VI8uvdA=
 =/NN5
 -----END PGP SIGNATURE-----

Merge tag 'v5.6-rc7' into devel

Linux 5.6-rc7
2020-03-27 22:36:17 +01:00
Pablo Neira Ayuso
53c2b2899a netfilter: flowtable: add counter support
Add a new flag to turn on flowtable counters which are stored in the
conntrack entry.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-03-27 18:32:37 +01:00
Pablo Neira Ayuso
cfbd1125fc netfilter: nf_tables: add enum nft_flowtable_flags to uapi
Expose the NFT_FLOWTABLE_HW_OFFLOAD flag through uapi.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-03-27 18:32:36 +01:00
Mark Brown
1c521d7e62
Merge branch 'asoc-5.7' into asoc-next 2020-03-27 17:29:20 +00:00
Jason Gunthorpe
dbdf8909d0 Merge branch 'mlx5_tx_steering' into rdma.git for-next
Leon Romanovsky says:

====================
Those two patches from Michael extends mlx5_core and mlx5_ib flow steering
to support RDMA TX in similar way to already supported RDMA RX.
====================

Based on the mlx5-next branch at
 git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Due to dependencies

* branch 'mlx5_tx_steering':
  RDMA/mlx5: Add support for RDMA TX flow table
  net/mlx5: Add support for RDMA TX steering
2020-03-27 13:26:59 -03:00
Michael Guralnik
af9c38411d RDMA/mlx5: Add support for RDMA TX flow table
Enable user application to add rules for RDMA TX steering table.
Rules in this steering table will allow to steer transmitted RDMA
traffic.

Link: https://lore.kernel.org/r/20200324061425.1570190-3-leon@kernel.org
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-03-27 13:24:48 -03:00
Yishai Hadas
0a2fd01c28 IB/mlx5: Move to fully dynamic UAR mode once user space supports it
Move to fully dynamic UAR mode once user space supports it.  In this case
we prevent any legacy mode of UARs on the allocated context and prevent
redundant allocation of the static ones.

Link: https://lore.kernel.org/r/20200324060143.1569116-6-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-03-27 12:59:05 -03:00
Yishai Hadas
ac42a5ee92 IB/mlx5: Extend QP creation to get uar page index from user space
Extend QP creation to get uar page index from user space, this mode can be
used with the UAR dynamic mode APIs to allocate/destroy a UAR object.

As part of enabling this option blocked the weird/un-supported cross
channel option which uses index 0 hard-coded.

This QP flag wasn't exposed to user space as part of any formal upstream
release, the dynamic option can allow having valid UAR page index instead.

Link: https://lore.kernel.org/r/20200324060143.1569116-4-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-03-27 12:59:04 -03:00
Yishai Hadas
64d99f6a62 IB/mlx5: Extend CQ creation to get uar page index from user space
Extend CQ creation to get uar page index from user space, this mode can be
used with the UAR dynamic mode APIs to allocate/destroy a UAR object.

Link: https://lore.kernel.org/r/20200324060143.1569116-3-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-03-27 12:59:04 -03:00
Yishai Hadas
342ee59de9 IB/mlx5: Expose UAR object and its alloc/destroy commands
Expose UAR object and its alloc/destroy commands to be used over the ioctl
interface by user space applications.

This API supports both BF & NC modes and enables a dynamic allocation of
UARs once really needed.

As the number of driver objects were limited by the core ones when the
merged tree is prepared, had to decrease the number of core objects to
enable the new UAR object usage.

Link: https://lore.kernel.org/r/20200324060143.1569116-2-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-03-27 12:59:04 -03:00
Namhyung Kim
6546b19f95 perf/core: Add PERF_SAMPLE_CGROUP feature
The PERF_SAMPLE_CGROUP bit is to save (perf_event) cgroup information in
the sample.  It will add a 64-bit id to identify current cgroup and it's
the file handle in the cgroup file system.  Userspace should use this
information with PERF_RECORD_CGROUP event to match which cgroup it
belongs.

I put it before PERF_SAMPLE_AUX for simplicity since it just needs a
64-bit word.  But if we want bigger samples, I can work on that
direction too.

Committer testing:

  $ pahole perf_sample_data | grep -w cgroup -B5 -A5
  	/* --- cacheline 4 boundary (256 bytes) was 56 bytes ago --- */
  	struct perf_regs           regs_intr;            /*   312    16 */
  	/* --- cacheline 5 boundary (320 bytes) was 8 bytes ago --- */
  	u64                        stack_user_size;      /*   328     8 */
  	u64                        phys_addr;            /*   336     8 */
  	u64                        cgroup;               /*   344     8 */

  	/* size: 384, cachelines: 6, members: 22 */
  	/* padding: 32 */
  };
  $

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Zefan Li <lizefan@huawei.com>
Link: http://lore.kernel.org/lkml/20200325124536.2800725-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-03-27 10:41:44 -03:00
Namhyung Kim
96aaab6865 perf/core: Add PERF_RECORD_CGROUP event
To support cgroup tracking, add CGROUP event to save a link between
cgroup path and id number.  This is needed since cgroups can go away
when userspace tries to read the cgroup info (from the id) later.

The attr.cgroup bit was also added to enable cgroup tracking from
userspace.

This event will be generated when a new cgroup becomes active.
Userspace might need to synthesize those events for existing cgroups.

Committer testing:

From the resulting kernel, using /sys/kernel/btf/vmlinux:

  $ pahole perf_event_attr | grep -w cgroup -B5 -A1
  	__u64                      write_backward:1;     /*    40:27  8 */
  	__u64                      namespaces:1;         /*    40:28  8 */
  	__u64                      ksymbol:1;            /*    40:29  8 */
  	__u64                      bpf_event:1;          /*    40:30  8 */
  	__u64                      aux_output:1;         /*    40:31  8 */
  	__u64                      cgroup:1;             /*    40:32  8 */
  	__u64                      __reserved_1:31;      /*    40:33  8 */
  $

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Tejun Heo <tj@kernel.org>
[staticize perf_event_cgroup function]
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Zefan Li <lizefan@huawei.com>
Link: http://lore.kernel.org/lkml/20200325124536.2800725-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-03-27 10:39:11 -03:00
Lionel Landwerlin
4ef10fe05b drm/i915/perf: add new open param to configure polling of OA buffer
This new parameter let's the application choose how often the OA
buffer should be checked on the CPU side for data availability. Longer
polling period tend to reduce CPU overhead if the application does not
care about somewhat real time data collection.

v2: Allow disabling polling completely with 0 value (Lionel)
v3: Version the new parameter (Joonas)
v4: Rebase (Umesh)
v5: Make poll delay value of 0 invalid (Umesh)
v6:
- Describe poll_oa_period (Ashutosh)
- Fix comment for new poll parameter (Lionel)
- Drop open_flags in read_properties_unlocked (Lionel)
- Rename uapi parameter (Ashutosh)
v7: Reword the comment in uapi (Ashutosh)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324185457.14635-4-umesh.nerlige.ramappa@intel.com
2020-03-27 13:10:05 +02:00
Joerg Roedel
ff68eb2330 Merge branches 'iommu/fixes', 'arm/qcom', 'arm/omap', 'arm/smmu', 'x86/amd', 'x86/vt-d', 'virtio' and 'core' into next 2020-03-27 11:33:27 +01:00
Jean-Philippe Brucker
3f84b96c97 iommu/virtio: Fix sparse warning
We copied the virtio_iommu_config from the virtio-iommu specification,
which declares the fields using little-endian annotations (for example
le32). Unfortunately this causes sparse to warn about comparison between
little- and cpu-endian, because of the typecheck() in virtio_cread():

drivers/iommu/virtio-iommu.c:1024:9: sparse: sparse: incompatible types in comparison expression (different base types):
drivers/iommu/virtio-iommu.c:1024:9: sparse:    restricted __le64 *
drivers/iommu/virtio-iommu.c:1024:9: sparse:    unsigned long long *
drivers/iommu/virtio-iommu.c:1036:9: sparse: sparse: incompatible types in comparison expression (different base types):
drivers/iommu/virtio-iommu.c:1036:9: sparse:    restricted __le64 *
drivers/iommu/virtio-iommu.c:1036:9: sparse:    unsigned long long *
drivers/iommu/virtio-iommu.c:1040:9: sparse: sparse: incompatible types in comparison expression (different base types):
drivers/iommu/virtio-iommu.c:1040:9: sparse:    restricted __le64 *
drivers/iommu/virtio-iommu.c:1040:9: sparse:    unsigned long long *
drivers/iommu/virtio-iommu.c:1044:9: sparse: sparse: incompatible types in comparison expression (different base types):
drivers/iommu/virtio-iommu.c:1044:9: sparse:    restricted __le32 *
drivers/iommu/virtio-iommu.c:1044:9: sparse:    unsigned int *
drivers/iommu/virtio-iommu.c:1048:9: sparse: sparse: incompatible types in comparison expression (different base types):
drivers/iommu/virtio-iommu.c:1048:9: sparse:    restricted __le32 *
drivers/iommu/virtio-iommu.c:1048:9: sparse:    unsigned int *
drivers/iommu/virtio-iommu.c:1052:9: sparse: sparse: incompatible types in comparison expression (different base types):
drivers/iommu/virtio-iommu.c:1052:9: sparse:    restricted __le32 *
drivers/iommu/virtio-iommu.c:1052:9: sparse:    unsigned int *

Although virtio_cread() does convert virtio-endian (in our case
little-endian) to cpu-endian, the typecheck() needs the two arguments to
have the same endianness. Do as UAPI headers of other virtio devices do,
and remove the endian annotation from the device config.

Even though we change the UAPI this shouldn't cause any regression since
QEMU, the existing implementation of virtio-iommu that uses this header,
already removes the annotations when importing headers.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Link: https://lore.kernel.org/r/20200326093558.2641019-2-jean-philippe@linaro.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-03-27 11:09:18 +01:00
Linus Torvalds
f3e69428b5 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:

 - a fix to generate proper timestamps on key autorepeat events that
   were broken recently

 - a fix for Synaptics driver to only activate reduced reporting mode
   when explicitly requested

 - a new keycode for "selective screenshot" function

 - other assorted fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: fix stale timestamp on key autorepeat events
  Input: move the new KEY_SELECTIVE_SCREENSHOT keycode
  Input: avoid BIT() macro usage in the serio.h UAPI header
  Input: synaptics-rmi4 - set reduced reporting mode only when requested
  Input: synaptics - enable RMI on HP Envy 13-ad105ng
  Input: allocate keycode for "Selective Screenshot" key
  Input: tm2-touchkey - add support for Coreriver TC360 variant
  dt-bindings: input: add Coreriver TC360 binding
  dt-bindings: vendor-prefixes: Add Coreriver vendor prefix
  Input: raydium_i2c_ts - fix error codes in raydium_i2c_boot_trigger()
2020-03-26 20:49:44 -07:00
Antoine Tenart
21114b7fee net: macsec: add support for offloading to the MAC
This patch adds a new MACsec offloading option, MACSEC_OFFLOAD_MAC,
allowing a user to select a MAC as a provider for MACsec offloading
operations.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-26 20:17:36 -07:00
Eugene Syromiatnikov
673040c3a8 taprio: do not use BIT() in TCA_TAPRIO_ATTR_FLAG_* definitions
BIT() macro definition is internal to the Linux kernel and is not
to be used in UAPI headers; replace its usage with the _BITUL() macro
that is already used elsewhere in the header.

Fixes: 9c66d15646 ("taprio: Add support for hardware offloading")
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-26 20:08:45 -07:00
Eugene Syromiatnikov
b0efe02812 rtc: make definitions in include/uapi/linux/rtc.h actually useful for user space
BIT() macro is not defined in UAPI headers; there is, however, similarly
defined _BITUL() macro present in include/uapi/linux/const.h; use it
instead and include <linux/const.h> and <linux/ioctl.h> in order to make
the definitions provided in the header useful.

Fixes: 3431ca4837 ("rtc: define RTC_VL_READ values")
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Link: https://lore.kernel.org/r/20200324041209.GA30727@asgard.redhat.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-26 21:38:40 +01:00
Dmitry Torokhov
fbf66796a0 Input: move the new KEY_SELECTIVE_SCREENSHOT keycode
We should try to keep keycodes sequential unless there is a reason to leave
a gap in numbering, so let's move it from 0x280 to 0x27a while we still
can.

Fixes: 3b059da983 ("Input: allocate keycode for Selective Screenshot key")
Acked-by: Rajat Jain <rajatja@google.com>
Link: https://lore.kernel.org/r/20200326182711.GA259753@dtor-ws
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-03-26 12:55:17 -07:00
Eugene Syromiatnikov
9b6eaaf3db coresight: do not use the BIT() macro in the UAPI header
The BIT() macro definition is not available for the UAPI headers
(moreover, it can be defined differently in the user space); replace
its usage with the _BITUL() macro that is defined in <linux/const.h>.

Fixes: 237483aa5c ("coresight: stm: adding driver for CoreSight STM component")
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200324042213.GA10452@asgard.redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26 15:10:44 +01:00
Paul Mackerras
9a5788c615 KVM: PPC: Book3S HV: Add a capability for enabling secure guests
At present, on Power systems with Protected Execution Facility
hardware and an ultravisor, a KVM guest can transition to being a
secure guest at will.  Userspace (QEMU) has no way of knowing
whether a host system is capable of running secure guests.  This
will present a problem in future when the ultravisor is capable of
migrating secure guests from one host to another, because
virtualization management software will have no way to ensure that
secure guests only run in domains where all of the hosts can
support secure guests.

This adds a VM capability which has two functions: (a) userspace
can query it to find out whether the host can support secure guests,
and (b) userspace can enable it for a guest, which allows that
guest to become a secure guest.  If userspace does not enable it,
KVM will return an error when the ultravisor does the hypercall
that indicates that the guest is starting to transition to a
secure guest.  The ultravisor will then abort the transition and
the guest will terminate.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
2020-03-26 11:09:04 +11:00
Amir Goldstein
44d705b037 fanotify: report name info for FAN_DIR_MODIFY event
Report event FAN_DIR_MODIFY with name in a variable length record similar
to how fid's are reported.  With name info reporting implemented, setting
FAN_DIR_MODIFY in mark mask is now allowed.

When events are reported with name, the reported fid identifies the
directory and the name follows the fid. The info record type for this
event info is FAN_EVENT_INFO_TYPE_DFID_NAME.

For now, all reported events have at most one info record which is
either FAN_EVENT_INFO_TYPE_FID or FAN_EVENT_INFO_TYPE_DFID_NAME (for
FAN_DIR_MODIFY).  Later on, events "on child" will report both records.

There are several ways that an application can use this information:

1. When watching a single directory, the name is always relative to
the watched directory, so application need to fstatat(2) the name
relative to the watched directory.

2. When watching a set of directories, the application could keep a map
of dirfd for all watched directories and hash the map by fid obtained
with name_to_handle_at(2).  When getting a name event, the fid in the
event info could be used to lookup the base dirfd in the map and then
call fstatat(2) with that dirfd.

3. When watching a filesystem (FAN_MARK_FILESYSTEM) or a large set of
directories, the application could use open_by_handle_at(2) with the fid
in event info to obtain dirfd for the directory where event happened and
call fstatat(2) with this dirfd.

The last option scales better for a large number of watched directories.
The first two options may be available in the future also for non
privileged fanotify watchers, because open_by_handle_at(2) requires
the CAP_DAC_READ_SEARCH capability.

Link: https://lore.kernel.org/r/20200319151022.31456-15-amir73il@gmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2020-03-25 23:17:16 +01:00
Amir Goldstein
9e2ba2c34f fanotify: send FAN_DIR_MODIFY event flavor with dir inode and name
Dirent events are going to be supported in two flavors:

1. Directory fid info + mask that includes the specific event types
   (e.g. FAN_CREATE) and an optional FAN_ONDIR flag.
2. Directory fid info + name + mask that includes only FAN_DIR_MODIFY.

To request the second event flavor, user needs to set the event type
FAN_DIR_MODIFY in the mark mask.

The first flavor is supported since kernel v5.1 for groups initialized
with flag FAN_REPORT_FID.  It is intended to be used for watching
directories in "batch mode" - the watcher is notified when directory is
changed and re-scans the directory content in response.  This event
flavor is stored more compactly in the event queue, so it is optimal
for workloads with frequent directory changes.

The second event flavor is intended to be used for watching large
directories, where the cost of re-scan of the directory on every change
is considered too high.  The watcher getting the event with the directory
fid and entry name is expected to call fstatat(2) to query the content of
the entry after the change.

Legacy inotify events are reported with name and event mask (e.g. "foo",
FAN_CREATE | FAN_ONDIR).  That can lead users to the conclusion that
there is *currently* an entry "foo" that is a sub-directory, when in fact
"foo" may be negative or non-dir by the time user gets the event.

To make it clear that the current state of the named entry is unknown,
when reporting an event with name info, fanotify obfuscates the specific
event types (e.g. create,delete,rename) and uses a common event type -
FAN_DIR_MODIFY to describe the change.  This should make it harder for
users to make wrong assumptions and write buggy filesystem monitors.

At this point, name info reporting is not yet implemented, so trying to
set FAN_DIR_MODIFY in mark mask will return -EINVAL.

Link: https://lore.kernel.org/r/20200319151022.31456-12-amir73il@gmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2020-03-25 10:27:16 +01:00
Jonathan Neuschäfer
32f5f62d79 gpio: uapi: Improve phrasing around arrays representing empty strings
Character arrays can be considered empty strings (if they are
immediately terminated), but they cannot be NULL.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-03-25 09:50:44 +01:00
Eugene Syromiatnikov
52afa505a0 Input: avoid BIT() macro usage in the serio.h UAPI header
The commit 19ba1eb15a ("Input: psmouse - add a custom serio protocol
to send extra information") introduced usage of the BIT() macro
for SERIO_* flags; this macro is not provided in UAPI headers.
Replace if with similarly defined _BITUL() macro defined
in <linux/const.h>.

Fixes: 19ba1eb15a ("Input: psmouse - add a custom serio protocol to send extra information")
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Cc: <stable@vger.kernel.org> # v5.0+
Link: https://lore.kernel.org/r/20200324041341.GA32335@asgard.redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-03-24 15:59:34 -07:00
Alex Williamson
43eeeecc8e vfio: Introduce VFIO_DEVICE_FEATURE ioctl and first user
The VFIO_DEVICE_FEATURE ioctl is meant to be a general purpose, device
agnostic ioctl for setting, retrieving, and probing device features.
This implementation provides a 16-bit field for specifying a feature
index, where the data porition of the ioctl is determined by the
semantics for the given feature.  Additional flag bits indicate the
direction and nature of the operation; SET indicates user data is
provided into the device feature, GET indicates the device feature is
written out into user data.  The PROBE flag augments determining
whether the given feature is supported, and if provided, whether the
given operation on the feature is supported.

The first user of this ioctl is for setting the vfio-pci VF token,
where the user provides a shared secret key (UUID) on a SR-IOV PF
device, which users must provide when opening associated VF devices.

Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2020-03-24 09:28:27 -06:00
Gustavo A. R. Silva
1a91a36aba mmc: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20200226223125.GA20630@embeddedor
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-03-24 14:39:45 +01:00
Jakub Kicinski
0dfb2d82af net: sched: rename more stats_types
Commit 53eca1f347 ("net: rename flow_action_hw_stats_types* ->
flow_action_hw_stats*") renamed just the flow action types and
helpers. For consistency rename variables, enums, struct members
and UAPI too (note that this UAPI was not in any official release,
yet).

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-23 20:54:23 -07:00
Deepak Rawat
f0fce23384 drm/vmwgfx: Add SM5 param for userspace
Add a new param for user-space to determine if kernel module is SM5
capable.

Signed-off-by: Deepak Rawat <drawat.floss@gmail.com>
Reviewed-by: Thomas Hellström (VMware) <thomas_os@shipmail.org>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Roland Scheidegger <sroland@vmware.com>
2020-03-23 22:48:57 +01:00