Commit Graph

916453 Commits

Author SHA1 Message Date
Florian Fainelli
c2e77a18a7 net: dsa: b53: Fix ARL register definitions
The ARL {MAC,VID} tuple and the forward entry were off by 0x10 bytes,
which means that when we read/wrote from/to ARL bin index 0, we were
actually accessing the ARLA_RWCTRL register.

Fixes: 1da6df85c6 ("net: dsa: b53: Implement ARL add/del/dump operations")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:50:41 -07:00
Florian Fainelli
eab167f485 net: dsa: b53: Fix valid setting for MDB entries
When support for the MDB entries was added, the valid bit was correctly
changed to be assigned depending on the remaining port bitmask, that is,
if there were no more ports added to the entry's port bitmask, the entry
now becomes invalid. There was another assignment a few lines below that
would override this which would invalidate entries even when there were
still multiple ports left in the MDB entry.

Fixes: 5d65b64a3d ("net: dsa: b53: Add support for MDB")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:50:41 -07:00
Florian Fainelli
2e97b0cd16 net: dsa: b53: Lookup VID in ARL searches when VLAN is enabled
When VLAN is enabled, and an ARL search is issued, we also need to
compare the full {MAC,VID} tuple before returning a successful search
result.

Fixes: 1da6df85c6 ("net: dsa: b53: Implement ARL add/del/dump operations")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:50:41 -07:00
YueHaibing
540bde5c2c ila: remove unused macro 'ILA_HASH_TABLE_SIZE'
net/ipv6/ila/ila_xlat.c:604:0: warning: macro "ILA_HASH_TABLE_SIZE" is not used [-Wunused-macros]

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:49:21 -07:00
wenxu
beb97d3a31 net/sched: act_ct: update nf_conn_acct for act_ct SW offload in flowtable
When the act_ct SW offload in flowtable, The counter of the conntrack
entry will never update. So update the nf_conn_acct conuter in act_ct
flowtable software offload.

Signed-off-by: wenxu <wenxu@ucloud.cn>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:48:17 -07:00
Harry Pan
5b16ef2e43 perf/x86/cstate: Add Jasper Lake CPU support
The Jasper Lake processor is Tremont microarchitecture, reuse the
glm_cstates table of Goldmont and Goldmont Plus to enable the C-states
residency profiling.

Signed-off-by: Harry Pan <harry.pan@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200402190658.1.Ic02e891daac41303aed1f2fc6c64f6110edd27bd@changeid
2020-04-22 21:43:12 +02:00
David S. Miller
87f78f274d Merge branch 'vrf-looping'
David Ahern says:

====================
net: Fix looping with vrf, xfrms and qdisc on VRF

Trev reported that use of VRFs with xfrms is looping when a qdisc
is added to the VRF device. The combination of xfrm + qdisc is not
handled by the VRF driver which lost track that it has already
seen the packet.

The XFRM_TRANSFORMED flag is used by the netfilter code for a similar
purpose, so re-use for VRF. Patch 1 drops the #ifdef around setting
the flag in the xfrm output functions. Patch 2 adds a check to
the VRF driver for flag; if set the packet has already passed through
the VRF driver once and does not need to recirculated a second time.

This is a day 1 bug with VRFs; stable wise, I would only take this
back to 4.14. I have a set of test cases which I will submit to
net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:32:11 -07:00
David Ahern
16b9db1ce3 vrf: Check skb for XFRM_TRANSFORMED flag
To avoid a loop with qdiscs and xfrms, check if the skb has already gone
through the qdisc attached to the VRF device and then to the xfrm layer.
If so, no need for a second redirect.

Fixes: 193125dbd8 ("net: Introduce VRF device driver")
Reported-by: Trev Larock <trev@larock.ca>
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:32:11 -07:00
David Ahern
0c922a4850 xfrm: Always set XFRM_TRANSFORMED in xfrm{4,6}_output_finish
IPSKB_XFRM_TRANSFORMED and IP6SKB_XFRM_TRANSFORMED are skb flags set by
xfrm code to tell other skb handlers that the packet has been passed
through the xfrm output functions. Simplify the code and just always
set them rather than conditionally based on netfilter enabled thus
making the flag available for other users.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:32:11 -07:00
David S. Miller
58989d7cf6 Merge branch 'net-phy-add-device-managed-devm_mdiobus_register'
Heiner Kallweit says:

====================
net: phy: add device-managed devm_mdiobus_register

If there's no special ordering requirement for mdiobus_unregister(),
then driver code can be simplified by using a device-managed version
of mdiobus_register(). Prerequisite is that bus allocation has been
done device-managed too. Else mdiobus_free() may be called whilst
bus is still registered, resulting in a BUG_ON(). Therefore let
devm_mdiobus_register() return -EPERM if bus was allocated
non-managed.

First user of the new functionality is r8169 driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:19:55 -07:00
Heiner Kallweit
0785dad480 r8169: use devm_mdiobus_register
Use new function devm_mdiobus_register() to simplify the driver.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:19:55 -07:00
Heiner Kallweit
38f961e744 net: phy: add device-managed devm_mdiobus_register
If there's no special ordering requirement for mdiobus_unregister(),
then driver code can be simplified by using a device-managed version
of mdiobus_register(). Prerequisite is that bus allocation has been
done device-managed too. Else mdiobus_free() may be called whilst
bus is still registered, resulting in a BUG_ON(). Therefore let
devm_mdiobus_register() return -EPERM if bus was allocated
non-managed.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:19:54 -07:00
Maciej Żenczykowski
9175d3f388 ipv6: ndisc: RFC-ietf-6man-ra-pref64-09 is now published as RFC8781
See:
  https://www.rfc-editor.org/authors/rfc8781.txt

Cc: Erik Kline <ek@google.com>
Cc: Jen Linkova <furry@google.com>
Cc: Lorenzo Colitti <lorenzo@google.com>
Cc: Michael Haro <mharo@google.com>
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Fixes: c24a77edc9 ("ipv6: ndisc: add support for 'PREF64' dns64 prefix identifier")
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:15:07 -07:00
Michael Walle
4406d36dfd net: phy: bcm54140: add hwmon support
The PHY supports monitoring its die temperature as well as two analog
voltages. Add support for it.

Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:14:18 -07:00
Michael Walle
6937602ed3 net: phy: add Broadcom BCM54140 support
The Broadcom BCM54140 is a Quad SGMII/QSGMII Copper/Fiber Gigabit
Ethernet transceiver.

This also adds support for tunables to set and get downshift and
energy detect auto power-down.

The PHY has four ports and each port has its own PHY address.
There are per-port registers as well as global registers.
Unfortunately, the global registers can only be accessed by reading
and writing from/to the PHY address of the first port. Further,
there is no way to find out what port you actually are by just
reading the per-port registers. We therefore, have to scan the
bus on the PHY probe to determine the port and thus what address
we need to access the global registers.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:14:18 -07:00
Michael Walle
0a32f1ff2a net: phy: broadcom: add helper to write/read RDB registers
RDB (Register Data Base) registers are used on newer Broadcom PHYs. Add
helper to read, write and modify these registers.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:14:18 -07:00
David S. Miller
b86a037385 Merge branch 'dt-bindings-net-mdio.yaml-fixes'
Florian Fainelli says:

====================
dt-bindings: net: mdio.yaml fixes

This patch series documents some common MDIO devices properties such as
resets (and delays) and broken-turn-around. The second patch also
rephrases some descriptions to be more general towards MDIO devices and
not specific towards Ethernet PHYs.

Changes in v3:

- corrected wording of 'broken-turn-around' in ethernet-phy.yaml and
  mdio.yaml, add Andrew's R-b tag to patch #3
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 11:43:27 -07:00
Florian Fainelli
630c3ff8c3 dt-bindings: net: mdio: Make descriptions more general
A number of descriptions assume a PHY device, but since this binding
describes a MDIO bus which can have different kinds of MDIO devices
attached to it, rephrase some descriptions to be more general in that
regard.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 11:43:19 -07:00
Florian Fainelli
b92d905f2c dt-bindings: net: mdio: Document common properties
Some of the properties pertaining to the broken turn around or resets
were only documented in ethernet-phy.yaml while they are applicable
across all MDIO devices and not Ethernet PHYs specifically which are a
superset.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 11:43:05 -07:00
Florian Fainelli
f42ceca226 dt-bindings: net: Correct description of 'broken-turn-around'
The turn around bytes (2) are placed between the control phase of the
MDIO transaction and the data phase, correct the wording to be more
exact.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 11:43:05 -07:00
David S. Miller
a3b6e8fd27 Merge branch 'Ocelot-MAC_ETYPE-tc-flower-key-improvements'
Vladimir Oltean says:

====================
Ocelot MAC_ETYPE tc-flower key improvements

As discussed in the comments surrounding this patch:
https://patchwork.ozlabs.org/project/netdev/patch/20200417190308.32598-1-olteanv@gmail.com/

the restrictions imposed on non-MAC_ETYPE rules were harsher than they
needed to be. IP, IPv6, ARP rules can still be added concurrently with
src_mac and dst_mac rules, as long as those MAC address rules do not ask
for an offending EtherType.

For that to actually be supported, we need to parse the EtherType from
the flower classification rule first.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 11:40:52 -07:00
Vladimir Oltean
4faa2e0643 net: mscc: ocelot: lift protocol restriction for flow_match_eth_addrs keys
An attempt was made in commit fe3490e610 ("net: mscc: ocelot: Hardware
ofload for tc flower filter") to avoid clashes between MAC_ETYPE rules
and IP rules. Because the protocol blacklist should have included
ETH_P_ALL too, it created some confusion, but now the situation should
be dealt with a bit better by the patch immediately previous to this one
("net: mscc: ocelot: refine the ocelot_ace_is_problematic_mac_etype
function").

So now we can remove that check. MAC_ETYPE rules with a protocol of
ETH_P_IP, ETH_P_IPV6, ETH_P_ARP and ETH_P_ALL _are_ supported, with some
restrictions regarding per-port exclusivity which are enforced now.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 11:40:51 -07:00
Vladimir Oltean
7dec902f4f net: mscc: ocelot: refine the ocelot_ace_is_problematic_mac_etype function
The commit mentioned below was a bit too harsh, and while it restricted
the invalid key combinations which are known to not work, such as:

tc filter add dev swp0 ingress proto ip \
      flower src_ip 192.0.2.1 action drop
tc filter add dev swp0 ingress proto all \
      flower src_mac 00:11:22:33:44:55 action drop

it also restricted some which still should work, such as:

tc filter add dev swp0 ingress proto ip \
      flower src_ip 192.0.2.1 action drop
tc filter add dev swp0 ingress proto 0x22f0 \
      flower src_mac 00:11:22:33:44:55 action drop

What actually does not match "sanely" is a MAC_ETYPE rule on frames
having an EtherType of ARP, IPv4, IPv6, in addition to SNAP and OAM
frames (which the ocelot tc-flower implementation does not parse yet, so
the function might need to be revisited again in the future).

So just make the function recognize the problematic MAC_ETYPE rules by
EtherType - thus the VCAP IS2 can be forced to match even on those
packets.

This patch makes it possible for IP rules to live on a port together
with MAC_ETYPE rules that are non-all, non-arp, non-ip and non-ipv6.

Fixes: d4d0cb741d7b ("net: mscc: ocelot: deal with problematic MAC_ETYPE VCAP IS2 rules")
Reported-by: Allan W. Nielsen <allan.nielsen@microchip.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 11:40:51 -07:00
Vladimir Oltean
86b956de11 net: mscc: ocelot: support matching on EtherType
Currently, the filter's protocol is ignored except for a few special
cases (IPv4 and IPv6).

The EtherType can be matched inside VCAP IS2 by using a MAC_ETYPE key.
So there are 2 cases in which EtherType matches are supported:

  - As part of a larger MAC_ETYPE rule, such as:

    tc filter add dev swp0 ingress protocol ip \
            flower skip_sw src_mac 42:be:24:9b:76:20 action drop

  - Standalone (matching on protocol only):

    tc filter add dev swp0 ingress protocol arp \
            flower skip_sw action drop

As before, if the protocol is not specified, is it implicitly "all" and
the EtherType mask in the MAC_ETYPE half key is set to zero.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 11:40:51 -07:00
Yuiko Oshino
63edbcceef net: phy: microchip_t1: add lan87xx_phy_init to initialize the lan87xx phy.
lan87xx_phy_init() initializes the lan87xx phy hardware
including its TC10 Wake-up and Sleep features.

Fixes: 3e50d2da58 ("Add driver for Microchip LAN87XX T1 PHYs")
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
v0->v1:
    - Add more details in the commit message and source comments.
    - Update to the latest initialization sequences.
    - Add access_ereg_modify_changed().
    - Fix access_ereg() to access SMI bank correctly.
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 11:38:58 -07:00
Linus Torvalds
c578ddb39e linux-kselftest-5.7-rc3
This kselftest update for Linux 5.7-rc3 consists of fixes to runner
 scripts and individual test run-time bugs. Includes fixes to tpm2
 and memfd test run-time regressions.
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Merge tag 'linux-kselftest-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:
 "This consists of fixes to runner scripts and individual test run-time
  bugs. Includes fixes to tpm2 and memfd test run-time regressions"

* tag 'linux-kselftest-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/ipc: Fix test failure seen after initial test run
  Revert "Kernel selftests: tpm2: check for tpm support"
  selftests/ftrace: Add CONFIG_SAMPLE_FTRACE_DIRECT=m kconfig
  selftests/seccomp: allow clock_nanosleep instead of nanosleep
  kselftest/runner: allow to properly deliver signals to tests
  selftests/harness: fix spelling mistake "SIGARLM" -> "SIGALRM"
  selftests: Fix memfd test run-time regression
  selftests: vm: Fix 64-bit test builds for powerpc64le
  selftests: vm: Do not override definition of ARCH
2020-04-22 10:47:49 -07:00
Jeremie Francois (on alpha)
e461bc9f9a scripts/config: allow colons in option strings for sed
Sed broke on some strings as it used colon as a separator.
I made it more robust by using \001, which is legit POSIX AFAIK.

E.g. ./config --set-str CONFIG_USBNET_DEVADDR "de:ad:be:ef:00:01"
failed with: sed: -e expression #1, char 55: unknown option to `s'

Signed-off-by: Jeremie Francois (on alpha) <jeremie.francois@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-04-23 01:10:16 +09:00
Lorenzo Pieralisi
ef46738cc4 MAINTAINERS: Add Rob Herring and remove Andy Murray as PCI reviewers
Andy Murray decided to step down as PCI controller reviewer and Rob Herring
is willing to help review PCI controller patches.

Update the respective MAINTAINERS entries to reflect this change.

Link: https://lore.kernel.org/r/20200422150336.10528-1-lorenzo.pieralisi@arm.com
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Andrew Murray <amurray@thegoodpenguin.co.uk>
2020-04-22 10:53:37 -05:00
Kai-Heng Feng
09beebd8f9 PM: sleep: core: Switch back to async_schedule_dev()
Commit 8b9ec6b732 ("PM core: Use new async_schedule_dev command")
introduced a new function for better performance.

However commit f2a424f6c6 ("PM / core: Introduce dpm_async_fn()
helper") went back to the non-optimized version, async_schedule().

So switch back to the sync_schedule_dev() to improve performance

Fixes: f2a424f6c6 ("PM / core: Introduce dpm_async_fn() helper")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-22 16:36:18 +02:00
Takashi Iwai
fef66ae73a ALSA: usb-audio: Add connector notifier delegation
It turned out that ALC1220-VB USB-audio device gives the interrupt
event to some PCM terminals while those don't allow the connector
state request but only the actual I/O terminals return the request.
The recent commit 7dc3c5a017 ("ALSA: usb-audio: Don't create jack
controls for PCM terminals") excluded those phantom terminals, so
those events are ignored, too.

My first thought was that this could be easily deduced from the
associated terminals, but some of them have even no associate terminal
ID, hence it's not too trivial to figure out.

Since the number of such terminals are small and limited, this patch
implements another quirk table for the simple mapping of the
connectors.  It's not really scalable, but let's hope that there will
be not many such funky devices in future.

Fixes: 7dc3c5a017 ("ALSA: usb-audio: Don't create jack controls for PCM terminals")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206873
Link: https://lore.kernel.org/r/20200422113320.26664-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-04-22 13:33:46 +02:00
Eric Sandeen
81df1ad406 exfat: truncate atimes to 2s granularity
The timestamp for access_time has double seconds granularity(There is no
10msIncrement field for access_time unlike create/modify_time).
exfat's atimes are restricted to only 2s granularity so after
we set an atime, round it down to the nearest 2s and set the
sub-second component of the timestamp to 0.

Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-04-22 20:14:06 +09:00
Eric Sandeen
674a9985b8 exfat: properly set s_time_gran
The s_time_gran superblock field indicates the on-disk nanosecond
granularity of timestamps, and for exfat that seems to be 10ms, so
set s_time_gran to 10000000ns. Without this, in-memory timestamps
change when they get re-read from disk.

Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-04-22 20:14:06 +09:00
Tetsuhiro Kohada
cbd445d9a9 exfat: remove 'bps' mount-option
remount fails because exfat_show_options() returns unsupported
option 'bps'.
> # mount -o ro,remount
> exfat: Unknown parameter 'bps'

To fix the problem, just remove 'bps' option from exfat_show_options().

Signed-off-by: Tetsuhiro Kohada <Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-04-22 20:14:05 +09:00
Tetsuhiro Kohada
b0516833d8 exfat: Unify access to the boot sector
Unify access to boot sector via 'sbi->pbr_bh'.
This fixes vol_flags inconsistency at read failed in fs_set_vol_flags(),
and buffer_head leak in __exfat_fill_super().

Signed-off-by: Tetsuhiro Kohada <Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-04-22 20:14:05 +09:00
Thomas Backlund
cd76ac258c exfat: add missing MODULE_ALIAS_FS()
This adds the necessary MODULE_ALIAS_FS() to exfat so the module gets
automatically loaded when an exfat filesystem is mounted.

Signed-off-by: Thomas Backlund <tmb@mageia.org>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-04-22 20:14:05 +09:00
Pali Rohár
b7e038a924 exfat: Fix discard support
Discard support was always unconditionally disabled. Now it is disabled
only in the case when blk_queue_discard() returns false.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-04-22 20:14:05 +09:00
Jason Gunthorpe
01b2bafe57 pnp: Use list_for_each_entry() instead of open coding
Aside from good practice, this avoids a warning from gcc 10:

./include/linux/kernel.h:997:3: warning: array subscript -31 is outside array bounds of ‘struct list_head[1]’ [-Warray-bounds]
  997 |  ((type *)(__mptr - offsetof(type, member))); })
      |  ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/linux/list.h:493:2: note: in expansion of macro ‘container_of’
  493 |  container_of(ptr, type, member)
      |  ^~~~~~~~~~~~
./include/linux/pnp.h:275:30: note: in expansion of macro ‘list_entry’
  275 | #define global_to_pnp_dev(n) list_entry(n, struct pnp_dev, global_list)
      |                              ^~~~~~~~~~
./include/linux/pnp.h:281:11: note: in expansion of macro ‘global_to_pnp_dev’
  281 |  (dev) != global_to_pnp_dev(&pnp_global); \
      |           ^~~~~~~~~~~~~~~~~
arch/x86/kernel/rtc.c:189:2: note: in expansion of macro ‘pnp_for_each_dev’
  189 |  pnp_for_each_dev(dev) {

Because the common code doesn't cast the starting list_head to the
containing struct.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
[ rjw: Whitespace adjustments ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-22 11:36:11 +02:00
Voon Weifeng
b9663b7ca6 net: stmmac: Enable SERDES power up/down sequence
This patch is to enable Intel SERDES power up/down sequence. The SERDES
converts 8/10 bits data to SGMII signal. Below is an example of
HW configuration for SGMII mode. The SERDES is located in the PHY IF
in the diagram below.

<-----------------GBE Controller---------->|<--External PHY chip-->
+----------+         +----+            +---+           +----------+
|   EQoS   | <-GMII->| DW | < ------ > |PHY| <-SGMII-> | External |
|   MAC    |         |xPCS|            |IF |           | PHY      |
+----------+         +----+            +---+           +----------+
       ^               ^                 ^                ^
       |               |                 |                |
       +---------------------MDIO-------------------------+

PHY IF configuration and status registers are accessible through
mdio address 0x15 which is defined as mdio_adhoc_addr. During D0,
The driver will need to power up PHY IF by changing the power state
to P0. Likewise, for D3, the driver sets PHY IF power state to P3.

Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:54:45 -07:00
Dejin Zheng
d7a5502b0b net: broadcom: convert to devm_platform_ioremap_resource_byname()
Use the function devm_platform_ioremap_resource_byname() to simplify
source code which calls the functions platform_get_resource_byname()
and devm_ioremap_resource(). Remove also a few error messages which
became unnecessary with this software refactoring.

Suggested-by: Markus Elfring <Markus.Elfring@web.de>
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:53:54 -07:00
Taehee Yoo
4dee15b4fd macvlan: fix null dereference in macvlan_device_event()
In the macvlan_device_event(), the list_first_entry_or_null() is used.
This function could return null pointer if there is no node.
But, the macvlan module doesn't check the null pointer.
So, null-ptr-deref would occur.

      bond0
        |
   +----+-----+
   |          |
macvlan0   macvlan1
   |          |
 dummy0     dummy1

The problem scenario.
If dummy1 is removed,
1. ->dellink() of dummy1 is called.
2. NETDEV_UNREGISTER of dummy1 notification is sent to macvlan module.
3. ->dellink() of macvlan1 is called.
4. NETDEV_UNREGISTER of macvlan1 notification is sent to bond module.
5. __bond_release_one() is called and it internally calls
   dev_set_mac_address().
6. dev_set_mac_address() calls the ->ndo_set_mac_address() of macvlan1,
   which is macvlan_set_mac_address().
7. macvlan_set_mac_address() calls the dev_set_mac_address() with dummy1.
8. NETDEV_CHANGEADDR of dummy1 is sent to macvlan module.
9. In the macvlan_device_event(), it calls list_first_entry_or_null().
At this point, dummy1 and macvlan1 were removed.
So, list_first_entry_or_null() will return NULL.

Test commands:
    ip netns add nst
    ip netns exec nst ip link add bond0 type bond
    for i in {0..10}
    do
        ip netns exec nst ip link add dummy$i type dummy
	ip netns exec nst ip link add macvlan$i link dummy$i \
		type macvlan mode passthru
	ip netns exec nst ip link set macvlan$i master bond0
    done
    ip netns del nst

Splat looks like:
[   40.585687][  T146] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP DEI
[   40.587249][  T146] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
[   40.588342][  T146] CPU: 1 PID: 146 Comm: kworker/u8:2 Not tainted 5.7.0-rc1+ #532
[   40.589299][  T146] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[   40.590469][  T146] Workqueue: netns cleanup_net
[   40.591045][  T146] RIP: 0010:macvlan_device_event+0x4e2/0x900 [macvlan]
[   40.591905][  T146] Code: 00 00 00 00 00 fc ff df 80 3c 06 00 0f 85 45 02 00 00 48 89 da 48 b8 00 00 00 00 00 fc ff d2
[   40.594126][  T146] RSP: 0018:ffff88806116f4a0 EFLAGS: 00010246
[   40.594783][  T146] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   40.595653][  T146] RDX: 0000000000000000 RSI: ffff88806547ddd8 RDI: ffff8880540f1360
[   40.596495][  T146] RBP: ffff88804011a808 R08: fffffbfff4fb8421 R09: fffffbfff4fb8421
[   40.597377][  T146] R10: ffffffffa7dc2107 R11: 0000000000000000 R12: 0000000000000008
[   40.598186][  T146] R13: ffff88804011a000 R14: ffff8880540f1000 R15: 1ffff1100c22de9a
[   40.599012][  T146] FS:  0000000000000000(0000) GS:ffff888067800000(0000) knlGS:0000000000000000
[   40.600004][  T146] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.600665][  T146] CR2: 00005572d3a807b8 CR3: 000000005fcf4003 CR4: 00000000000606e0
[   40.601485][  T146] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   40.602461][  T146] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   40.603443][  T146] Call Trace:
[   40.603871][  T146]  ? nf_tables_dump_setelem+0xa0/0xa0 [nf_tables]
[   40.604587][  T146]  ? macvlan_uninit+0x100/0x100 [macvlan]
[   40.605212][  T146]  ? __module_text_address+0x13/0x140
[   40.605842][  T146]  notifier_call_chain+0x90/0x160
[   40.606477][  T146]  dev_set_mac_address+0x28e/0x3f0
[   40.607117][  T146]  ? netdev_notify_peers+0xc0/0xc0
[   40.607762][  T146]  ? __module_text_address+0x13/0x140
[   40.608440][  T146]  ? notifier_call_chain+0x90/0x160
[   40.609097][  T146]  ? dev_set_mac_address+0x1f0/0x3f0
[   40.609758][  T146]  dev_set_mac_address+0x1f0/0x3f0
[   40.610402][  T146]  ? __local_bh_enable_ip+0xe9/0x1b0
[   40.611071][  T146]  ? bond_hw_addr_flush+0x77/0x100 [bonding]
[   40.611823][  T146]  ? netdev_notify_peers+0xc0/0xc0
[   40.612461][  T146]  ? bond_hw_addr_flush+0x77/0x100 [bonding]
[   40.613213][  T146]  ? bond_hw_addr_flush+0x77/0x100 [bonding]
[   40.613963][  T146]  ? __local_bh_enable_ip+0xe9/0x1b0
[   40.614631][  T146]  ? bond_time_in_interval.isra.31+0x90/0x90 [bonding]
[   40.615484][  T146]  ? __bond_release_one+0x9f0/0x12c0 [bonding]
[   40.616230][  T146]  __bond_release_one+0x9f0/0x12c0 [bonding]
[   40.616949][  T146]  ? bond_enslave+0x47c0/0x47c0 [bonding]
[   40.617642][  T146]  ? lock_downgrade+0x730/0x730
[   40.618218][  T146]  ? check_flags.part.42+0x450/0x450
[   40.618850][  T146]  ? __mutex_unlock_slowpath+0xd0/0x670
[   40.619519][  T146]  ? trace_hardirqs_on+0x30/0x180
[   40.620117][  T146]  ? wait_for_completion+0x250/0x250
[   40.620754][  T146]  bond_netdev_event+0x822/0x970 [bonding]
[   40.621460][  T146]  ? __module_text_address+0x13/0x140
[   40.622097][  T146]  notifier_call_chain+0x90/0x160
[   40.622806][  T146]  rollback_registered_many+0x660/0xcf0
[   40.623522][  T146]  ? netif_set_real_num_tx_queues+0x780/0x780
[   40.624290][  T146]  ? notifier_call_chain+0x90/0x160
[   40.624957][  T146]  ? netdev_upper_dev_unlink+0x114/0x180
[   40.625686][  T146]  ? __netdev_adjacent_dev_unlink_neighbour+0x30/0x30
[   40.626421][  T146]  ? mutex_is_locked+0x13/0x50
[   40.627016][  T146]  ? unregister_netdevice_queue+0xf2/0x240
[   40.627663][  T146]  unregister_netdevice_many.part.134+0x13/0x1b0
[   40.628362][  T146]  default_device_exit_batch+0x2d9/0x390
[   40.628987][  T146]  ? unregister_netdevice_many+0x40/0x40
[   40.629615][  T146]  ? dev_change_net_namespace+0xcb0/0xcb0
[   40.630279][  T146]  ? prepare_to_wait_exclusive+0x2e0/0x2e0
[   40.630943][  T146]  ? ops_exit_list.isra.9+0x97/0x140
[   40.631554][  T146]  cleanup_net+0x441/0x890
[ ... ]

Fixes: e289fd2817 ("macvlan: fix the problem when mac address changes for passthru mode")
Reported-by: syzbot+5035b1f9dc7ea4558d5a@syzkaller.appspotmail.com
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:51:55 -07:00
Jason Yan
c95576a34c e1000: remove unneeded conversion to bool
The '==' expression itself is bool, no need to convert it to bool again.
This fixes the following coccicheck warning:

drivers/net/ethernet/intel/e1000/e1000_main.c:1479:44-49: WARNING:
conversion to bool not needed here

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:45:32 -07:00
Jason Yan
7ff4f0631f i40e: Remove unneeded conversion to bool
The '==' expression itself is bool, no need to convert it to bool again.
This fixes the following coccicheck warning:

drivers/net/ethernet/intel/i40e/i40e_main.c:1614:52-57: WARNING:
conversion to bool not needed here
drivers/net/ethernet/intel/i40e/i40e_main.c:11439:52-57: WARNING:
conversion to bool not needed here

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:45:32 -07:00
Jason Yan
e9a9e51994 ptp: Remove unneeded conversion to bool
The '==' expression itself is bool, no need to convert it to bool again.
This fixes the following coccicheck warning:

drivers/ptp/ptp_ines.c:403:55-60: WARNING: conversion to bool not
needed here
drivers/ptp/ptp_ines.c:404:55-60: WARNING: conversion to bool not
needed here

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:45:32 -07:00
Jiri Slaby
526f3d96b8 cgroup, netclassid: remove double cond_resched
Commit 018d26fcd1 ("cgroup, netclassid: periodically release file_lock
on classid") added a second cond_resched to write_classid indirectly by
update_classid_task. Remove the one in write_classid.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Dmitry Yakunin <zeil@yandex-team.ru>
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:44:30 -07:00
David S. Miller
44dd5efc97 Merge branch 'Support-programmable-pins-for-Ocelot-PTP-driver'
Yangbo Lu says:

====================
Support programmable pins for Ocelot PTP driver

The Ocelot PTP clock driver had been embedded into ocelot.c driver.
It had supported basic gettime64/settime64/adjtime/adjfine functions
by now which were used by both Ocelot switch and Felix switch.

This patch-set is to move current ptp clock code out of ocelot.c driver
maintaining as a single ocelot_ptp.c driver, and to implement 4
programmable pins with only PTP_PF_PEROUT function for now.
The PTP_PF_EXTTS function will be supported in the future, and it should
be implemented separately for Felix and Ocelot, because of different
hardware interrupt implementation in them.

Changes for v2:
	- Put PTP driver under drivers/net/ethernet/mscc/.
	- Dropped MAINTAINERS patch. Kept original maintaining.
	- Initialized PTP separately in ocelot/felix platforms.
	- Supported PPS case in programmable pin.
	- Supported disabling pin function since deadlock is fixed by Richard.
	- Returned -EBUSY if not finding pin available.
Changes for v3:
	- Re-sent.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:38:34 -07:00
Yangbo Lu
5287be405c net: dsa: felix: enable PTP programmable pin
Enable PTP programmable pin.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:38:34 -07:00
Yangbo Lu
aabb2bb07c net: mscc: ocelot: enable PTP programmable pin
Enable PTP programmable pin.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:38:34 -07:00
Yangbo Lu
cc2d87bb83 net: mscc: ocelot: support 4 PTP programmable pins
Support 4 PTP programmable pins with only PTP_PF_PEROUT function
for now. The PTP_PF_EXTTS function will be supported in the
future, and it should be implemented separately for Felix and
Ocelot, because of different hardware interrupt implementation
in them.

Since the hardware is not able to support absolute start time,
the periodic clock request only allows start time 0 0. But nsec
could be accepted for PPS case for phase adjustment.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:38:33 -07:00
Yangbo Lu
94aca08244 net: mscc: ocelot: add wave programming registers definitions
Add wave programming registers definitions for Ocelot platforms.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:38:33 -07:00
Yangbo Lu
3007bc7321 net: mscc: ocelot: redefine PTP pins
There are 5 PTP_PINS register groups on Ocelot switch.
Except the one used for TOD operations, there are still
4 register groups for programmable pins. So redefine the
4 programmable pins.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:38:33 -07:00