Whenever the server side of vsock is binding to the socket, but not
listening yet, we expect the behavior from the client to be identical to
what happens when the server is not even started.
This new test runs the server side so that it binds to the socket
without ever listening to it. The client side will try to connect and
should receive an ECONNRESET error.
This new test provides a way to validate the previously introduced patch
for making sure the server side will always answer with a RST packet in
case the client requested a new connection.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Whenever the vsock backend on the host sends a packet through the RX
queue, it expects an answer on the TX queue. Unfortunately, there is one
case where the host side will hang waiting for the answer and might
effectively never recover if no timeout mechanism was implemented.
This issue happens when the guest side starts binding to the socket,
which insert a new bound socket into the list of already bound sockets.
At this time, we expect the guest to also start listening, which will
trigger the sk_state to move from TCP_CLOSE to TCP_LISTEN. The problem
occurs if the host side queued a RX packet and triggered an interrupt
right between the end of the binding process and the beginning of the
listening process. In this specific case, the function processing the
packet virtio_transport_recv_pkt() will find a bound socket, which means
it will hit the switch statement checking for the sk_state, but the
state won't be changed into TCP_LISTEN yet, which leads the code to pick
the default statement. This default statement will only free the buffer,
while it should also respond to the host side, by sending a packet on
its TX queue.
In order to simply fix this unfortunate chain of events, it is important
that in case the default statement is entered, and because at this stage
we know the host side is waiting for an answer, we must send back a
packet containing the operation VIRTIO_VSOCK_OP_RST.
One could say that a proper timeout mechanism on the host side will be
enough to avoid the backend to hang. But the point of this patch is to
ensure the normal use case will be provided with proper responsiveness
when it comes to establishing the connection.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 802.11 frame encapsulation offload support
* more HE (802.11ax) support, including some for 6 GHz band
* powersave in hwsim, for better testing
Of course as usual there are various cleanups and small fixes.
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Merge tag 'mac80211-next-for-net-next-2020-02-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
A few big new things:
* 802.11 frame encapsulation offload support
* more HE (802.11ax) support, including some for 6 GHz band
* powersave in hwsim, for better testing
Of course as usual there are various cleanups and small fixes.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Use list_for_each_entry_safe() instead of list_for_each_safe()
to simplify the code.
Signed-off-by: chenqiwu <chenqiwu@xiaomi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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
inadvertenly introduced[3] to the codebase from now on.
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: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The alarm function hadn't been supported by PTP clock driver.
The recommended solution PHC + phc2sys + nanosleep provides
best performance. So drop the code of alarm in ptp_qoriq driver.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
1) Fix interrupt name truncation in mv88e6xxx dsa driver, from Andrew
Lunn.
2) Process generic XDP even if SKB is cloned, from Toke Høiland-Jørgensen.
3) Fix leak of kernel memory to userspace in smc, from Eric Dumazet.
4) Add some missing netlink attribute validation to matchall and
flower, from Davide Caratti.
5) Send icmp responses properly when NAT has been applied to the frame
before we get to the tunnel emitting the icmp, from Jason Donenfeld.
6) Make sure there is enough SKB headroom when adding dsa tags for qca
and ar9331. From Per Forlin.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (62 commits)
netdevice.h: fix all kernel-doc and Sphinx warnings
net: dsa: tag_ar9331: Make sure there is headroom for tag
net: dsa: tag_qca: Make sure there is headroom for tag
net, ip6_tunnel: enhance tunnel locate with link check
net/smc: no peer ID in CLC decline for SMCD
net/smc: transfer fasync_list in case of fallback
net: hns3: fix a copying IPv6 address error in hclge_fd_get_flow_tuples()
net: hns3: fix VF bandwidth does not take effect in some case
net: hns3: add management table after IMP reset
mac80211: fix wrong 160/80+80 MHz setting
cfg80211: add missing policy for NL80211_ATTR_STATUS_CODE
xfrm: interface: use icmp_ndo_send helper
wireguard: device: use icmp_ndo_send helper
sunvnet: use icmp_ndo_send helper
gtp: use icmp_ndo_send helper
icmp: introduce helper for nat'd source address in network device context
net/sched: flower: add missing validation of TCA_FLOWER_FLAGS
net/sched: matchall: add missing validation of TCA_MATCHALL_FLAGS
net/flow_dissector: remove unexist field description
page_pool: refill page when alloc.count of pool is zero
...
Fix three issues related to the handling of wakeup events signaled
through the ACPI SCI while suspended to idle (Rafael Wysocki) and
unexport an internal cpufreq variable (Yangtao Li).
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Merge tag 'pm-5.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"Fix three issues related to the handling of wakeup events signaled
through the ACPI SCI while suspended to idle (Rafael Wysocki) and
unexport an internal cpufreq variable (Yangtao Li)"
* tag 'pm-5.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PM: s2idle: Prevent spurious SCIs from waking up the system
ACPICA: Introduce acpi_any_gpe_status_set()
ACPI: PM: s2idle: Avoid possible race related to the EC GPE
ACPI: EC: Fix flushing of pending work
cpufreq: Make cpufreq_global_kobject static
The only common change is the regression fix of the previous PCM fix
patch for managed buffers while the rest are usual suspects, USB-audio
and HD-audio device-specific quirks. The change for UAC2 clock
validation workaround became a bit big, but the changes are fairly
straightforward.
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Merge tag 'sound-5.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The only common change is the regression fix of the previous PCM fix
patch for managed buffers while the rest are usual suspects, USB-audio
and HD-audio device-specific quirks.
The change for UAC2 clock validation workaround became a bit big, but
the changes are fairly straightforward"
* tag 'sound-5.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: pcm: Fix double hw_free calls
ALSA: usb-audio: Add clock validity quirk for Denon MC7000/MCX8000
ALSA: hda/realtek - Fix silent output on MSI-GL73
ALSA: hda/realtek - Add more codec supported Headset Button
ALSA: usb-audio: Apply sample rate quirk for Audioengine D1
ALSA: usb-audio: Fix UAC2/3 effect unit parsing
ALSA: usb-audio: Apply 48kHz fixed rate playback for Jabra Evolve 65 headset
core:
- edid build fix
mst:
- fix NULL ptr deref
vgem:
- fix close after free
msm:
- better dma-api usage
sun4i:
- disable allow_fb_modifiers
amdgpu:
- Additional OD fixes for navi
- Misc display fixes
- VCN 2.5 DPG fix
- Prevent build errors on PowerPC on some configs
- GDS EDC fix
i915:
- dsi/acpi fixes
- gvt locking and allocation fixes
- gem/gt fixes
- bios timing parameters fix
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Merge tag 'drm-fixes-2020-02-14' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"The core has a build fix for edid code on certain compilers/arches/,
one MST fix and one vgem fix. Regular amdgpu fixes, and a couple of
small driver fixes.
The i915 fixes are bit larger than normal for this stage, but they
were having CI issues last week, and they hadn't sent any fixes last
week due to this.
core:
- edid build fix
mst:
- fix NULL ptr deref
vgem:
- fix close after free
msm:
- better dma-api usage
sun4i:
- disable allow_fb_modifiers
amdgpu:
- Additional OD fixes for navi
- Misc display fixes
- VCN 2.5 DPG fix
- Prevent build errors on PowerPC on some configs
- GDS EDC fix
i915:
- dsi/acpi fixes
- gvt locking and allocation fixes
- gem/gt fixes
- bios timing parameters fix"
* tag 'drm-fixes-2020-02-14' of git://anongit.freedesktop.org/drm/drm: (50 commits)
drm/i915: Mark the removal of the i915_request from the sched.link
drm/i915/execlists: Reclaim the hanging virtual request
drm/i915/execlists: Take a reference while capturing the guilty request
drm/i915/execlists: Offline error capture
drm/i915/gt: Allow temporary suspension of inflight requests
drm/i915: Keep track of request among the scheduling lists
drm/i915/gem: Tighten checks and acquiring the mmap object
drm/i915: Fix preallocated barrier list append
drm/i915/gt: Acquire ce->active before ce->pin_count/ce->pin_mutex
drm/i915: Tighten atomicity of i915_active_acquire vs i915_active_release
drm/i915: Stub out i915_gpu_coredump_put
drm/amdgpu:/navi10: use the ODCAP enum to index the caps array
drm/amdgpu: update smu_v11_0_pptable.h
drm/amdgpu: correct comment to clear up the confusion
drm/amd/display: DCN2.x Do not program DPPCLK if same value
drm/amd/display: Don't map ATOM_ENABLE to ATOM_INIT
drm/amdgpu/vcn2.5: fix warning
drm/amdgpu: limit GDS clearing workaround in cold boot sequence
drm/amdgpu: fix amdgpu pmu to use hwc->config instead of hwc->conf
amdgpu: Prevent build errors regarding soft/hard-float FP ABI tags
...
Eliminate all kernel-doc and Sphinx warnings in
<linux/netdevice.h>. Fixes these warnings:
../include/linux/netdevice.h:2100: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
../include/linux/netdevice.h:2100: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
../include/linux/netdevice.h:2100: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
../include/linux/netdevice.h:2100: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device'
../include/linux/netdevice.h:2100: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
../include/linux/netdevice.h:2100: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
../include/linux/netdevice.h:2100: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
../include/linux/netdevice.h:2100: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
../include/linux/netdevice.h:2100: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
../include/linux/netdevice.h:2100: warning: Function parameter or member 'xdp_bulkq' not described in 'net_device'
../include/linux/netdevice.h:2100: warning: Function parameter or member 'xps_cpus_map' not described in 'net_device'
../include/linux/netdevice.h:2100: warning: Function parameter or member 'xps_rxqs_map' not described in 'net_device'
../include/linux/netdevice.h:2100: warning: Function parameter or member 'qdisc_hash' not described in 'net_device'
../include/linux/netdevice.h:3552: WARNING: Inline emphasis start-string without end-string.
../include/linux/netdevice.h:3552: WARNING: Inline emphasis start-string without end-string.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Per Forlin says:
====================
net: dsa: Make sure there is headroom for tag
Sorry for re-posting yet another time....
I manage to include multiple email-senders and forgot to include cover-letter.
Let's hope everyhthing is in order this time.
Fix two tag drivers to make sure there is headroom for the tag data.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Passing tag size to skb_cow_head will make sure
there is enough headroom for the tag data.
This change does not introduce any overhead in case there
is already available headroom for tag.
Signed-off-by: Per Forlin <perfn@axis.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Passing tag size to skb_cow_head will make sure
there is enough headroom for the tag data.
This change does not introduce any overhead in case there
is already available headroom for tag.
Signed-off-by: Per Forlin <perfn@axis.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
With ipip, it is possible to create an extra interface explicitly
attached to a given physical interface:
# ip link show tunl0
4: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ipip 0.0.0.0 brd 0.0.0.0
# ip link add tunl1 type ipip dev eth0
# ip link show tunl1
6: tunl1@eth0: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ipip 0.0.0.0 brd 0.0.0.0
But it is not possible with ip6tnl:
# ip link show ip6tnl0
5: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/tunnel6 :: brd ::
# ip link add ip6tnl1 type ip6tnl dev eth0
RTNETLINK answers: File exists
This patch aims to make it possible by adding link comparaison in both
tunnel locate and lookup functions; we also modify mtu calculation when
attached to an interface with a lower mtu.
This permits to make use of x-netns communication by moving the newly
created tunnel in a given netns.
Signed-off-by: William Dauchy <w.dauchy@criteo.com>
Reviewed-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* avoid running out of tracking space for frames that need
to be reported to userspace by using more bits
* fix beacon handling suppression by adding some relevant
elements to the CRC calculation
* fix quiet mode in action frames
* fix crash in ethtool for virt_wifi and similar
* add a missing policy entry
* fix 160 & 80+80 bandwidth to take local capabilities into
account
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Merge tag 'mac80211-for-net-2020-02-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
Just a few fixes:
* avoid running out of tracking space for frames that need
to be reported to userspace by using more bits
* fix beacon handling suppression by adding some relevant
elements to the CRC calculation
* fix quiet mode in action frames
* fix crash in ethtool for virt_wifi and similar
* add a missing policy entry
* fix 160 & 80+80 bandwidth to take local capabilities into
account
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Karsten Graul says:
====================
net/smc: fixes for -net
Fix a syzbot finding and a problem with the CLC handshake content.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Just SMCR requires a CLC Peer ID, but not SMCD. The field should be
zero for SMCD.
Fixes: c758dfddc1 ("net/smc: add SMC-D support in CLC messages")
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
SMC does not work together with FASTOPEN. If sendmsg() is called with
flag MSG_FASTOPEN in SMC_INIT state, the SMC-socket switches to
fallback mode. To handle the previous ioctl FIOASYNC call correctly
in this case, it is necessary to transfer the socket wait queue
fasync_list to the internal TCP socket.
Reported-by: syzbot+4b1fe8105f8044a26162@syzkaller.appspotmail.com
Fixes: ee9dfbef02 ("net/smc: handle sockopts forcing fallback")
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Huazhong Tan says:
====================
net: hns3: fixes for -net
This series includes three bugfixes for the HNS3 ethernet driver.
[patch 1] fixes a management table lost issue after IMP reset.
[patch 2] fixes a VF bandwidth configuration not work problem.
[patch 3] fixes a problem related to IPv6 address copying.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The IPv6 address defined in struct in6_addr is specified as
big endian, but there is no specified endian in struct
hclge_fd_rule_tuples, so it will cause a problem if directly
use memcpy() to copy ipv6 address between these two structures
since this field in struct hclge_fd_rule_tuples is little endian.
This patch fixes this problem by using be32_to_cpu() to convert
endian of IPv6 address of struct in6_addr before copying.
Fixes: d93ed94fbe ("net: hns3: add aRFS support for PF")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When enabling 4 TC after setting the bandwidth of VF, the bandwidth
of VF will resume to default value, because of the qset resources
changed in this case.
This patch fixes it by using a fixed VF's qset resources according to
HNAE3_MAX_TC macro.
Fixes: ee9e44248f ("net: hns3: add support for configuring bandwidth of VF on the host")
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the current process, the management table is missing after the
IMP reset. This patch adds the management table to the reset process.
Fixes: f5aac71c03 ("net: hns3: add manager table initialization for hardware")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently a mac80211 driver can only set the txq_limit when using
wake_tx_queue. Not all drivers use wake_tx_queue. This patch adds a new
element to wiphy allowing a driver to set a custom tx_queue_len and the
code that will apply it in case it is set. The current default is
1000 which is too low for ath11k when doing HE rates.
Signed-off-by: John Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/20200211122605.13002-1-john@phrozen.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
With multiple VIFS ath10k, and probably others, tries to find the
minimum txpower for all vifs and uses that when setting txpower in
the firmware.
If a second vif is added and starts to scan, it's txpower is not
initialized yet and it set to zero.
ath10k had a patch to ignore zero values, but then it is impossible
to actually set txpower to zero.
So, instead initialize the txpower to INT_MIN in mac80211, and let
drivers know that means the power has not been set and so should
be ignored.
This should fix regression in:
commit 88407beb1b
Author: Ryan Hsu <ryanhsu@qca.qualcomm.com>
Date: Tue Dec 13 14:55:19 2016 -0800
ath10k: fix incorrect txpower set by P2P_DEVICE interface
Tested on ath10k 9984 with ath10k-ct firmware.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Link: https://lore.kernel.org/r/20191217183057.24586-1-greearb@candelatech.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Before this patch, STA's would set new width of 160/80+80 MHz based on AP capability only.
This is wrong because STA may not support > 80MHz BW.
Fix is to verify STA has 160/80+80 MHz capability before increasing its width to > 80MHz.
The "support_80_80" and "support_160" setting is based on:
"Table 9-272 — Setting of the Supported Channel Width Set subfield and Extended NSS BW
Support subfield at a STA transmitting the VHT Capabilities Information field"
From "Draft P802.11REVmd_D3.0.pdf"
Signed-off-by: Aviad Brikman <aviad.brikman@celeno.com>
Signed-off-by: Shay Bar <shay.bar@celeno.com>
Link: https://lore.kernel.org/r/20200210130728.23674-1-shay.bar@celeno.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The nl80211_policy is missing for NL80211_ATTR_STATUS_CODE attribute.
As a result, for strictly validated commands, it's assumed to not be
supported.
Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20200213131608.10541-2-sergey.matyukevich.os@quantenna.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Merge tag 'drm-intel-next-fixes-2020-02-13' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v5.6-rc2
Most of these were aimed at a "next fixes" pull already during the merge
window, but there were issues with the baseline I used, which resulted
in a lot of issues in CI. I've regenerated this stuff piecemeal now,
adding gradually to it, and it seems healthy now.
Due to the issues this is much bigger than I'd like. But it was
obviously necessary to take the time to ensure it's not garbage...
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/878sl6yfrn.fsf@intel.com
- Revert allow_fb_modifiers in sun4i, as it causes a regression for DE2 and DE3.
- Fix null pointer deref in drm_dp_mst_process_up_req().
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Merge tag 'drm-misc-fixes-2020-02-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Fixes for v5.6:
- Revert allow_fb_modifiers in sun4i, as it causes a regression for DE2 and DE3.
- Fix null pointer deref in drm_dp_mst_process_up_req().
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/672810c3-4212-0a46-337b-2cb855573fd2@linux.intel.com
- Fix build when KASLR is enabled but CONFIG_ARCH_RANDOM is not set
- Fix context-switching of SSBS state on systems that implement it
- Fix spinlock compiler warning introduced during the merge window
- Fix incorrect header inclusion (linux/clk-provider.h)
- Use SYSCTL_{ZERO,ONE} instead of rolling our own static variables
- Don't scream if optional SMMUv3 PMU irq is missing
- Remove some unused function prototypes
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Summary below, but it's all reasonably straightforward. There are some
more fixes on the horizon, but nothing disastrous yet.
Summary:
- Fix build when KASLR is enabled but CONFIG_ARCH_RANDOM is not set
- Fix context-switching of SSBS state on systems that implement it
- Fix spinlock compiler warning introduced during the merge window
- Fix incorrect header inclusion (linux/clk-provider.h)
- Use SYSCTL_{ZERO,ONE} instead of rolling our own static variables
- Don't scream if optional SMMUv3 PMU irq is missing
- Remove some unused function prototypes"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: time: Replace <linux/clk-provider.h> by <linux/of_clk.h>
arm64: Fix CONFIG_ARCH_RANDOM=n build
perf/smmuv3: Use platform_get_irq_optional() for wired interrupt
arm64/spinlock: fix a -Wunused-function warning
arm64: ssbs: Fix context-switch when SSBS is present on all CPUs
arm64: use shared sysctl constants
arm64: Drop do_el0_ia_bp_hardening() & do_sp_pc_abort() declarations
- Revert two patches to gpio_do_set_config() and implement
the proper solution that works, also drop an unecessary
call in set_config()
- Fix up the lockdep class for hierarchical IRQ domains.
- Remove some bridge code for line directions.
- Fix a register access bug in the Xilinx driver.
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Merge tag 'gpio-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
- Revert two patches to gpio_do_set_config() and implement the proper
solution that works, also drop an unecessary call in set_config()
- Fix up the lockdep class for hierarchical IRQ domains.
- Remove some bridge code for line directions.
- Fix a register access bug in the Xilinx driver.
* tag 'gpio-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: sifive: fix static checker warning
spmi: pmic-arb: Set lockdep class for hierarchical irq domains
gpio: xilinx: Fix bug where the wrong GPIO register is written to
gpiolib: remove unnecessary argument from set_config call
gpio: bd71828: Remove unneeded defines for GPIO_LINE_DIRECTION_IN/OUT
MAINTAINERS: Sort entries in database for GPIO
gpiolib: fix gpio_do_set_config()
Revert "gpiolib: remove set but not used variable 'config'"
Revert "gpiolib: Remove duplicated function gpio_do_set_config()"
Jason A. Donenfeld says:
====================
icmp: account for NAT when sending icmps from ndo layer
The ICMP routines use the source address for two reasons:
1. Rate-limiting ICMP transmissions based on source address, so
that one source address cannot provoke a flood of replies. If
the source address is wrong, the rate limiting will be
incorrectly applied.
2. Choosing the interface and hence new source address of the
generated ICMP packet. If the original packet source address
is wrong, ICMP replies will be sent from the wrong source
address, resulting in either a misdelivery, infoleak, or just
general network admin confusion.
Most of the time, the icmp_send and icmpv6_send routines can just reach
down into the skb's IP header to determine the saddr. However, if
icmp_send or icmpv6_send is being called from a network device driver --
there are a few in the tree -- then it's possible that by the time
icmp_send or icmpv6_send looks at the packet, the packet's source
address has already been transformed by SNAT or MASQUERADE or some other
transformation that CONNTRACK knows about. In this case, the packet's
source address is most certainly the *wrong* source address to be used
for the purpose of ICMP replies.
Rather, the source address we want to use for ICMP replies is the
original one, from before the transformation occurred.
Fortunately, it's very easy to just ask CONNTRACK if it knows about this
packet, and if so, how to fix it up. The saddr is the only field in the
header we need to fix up, for the purposes of the subsequent processing
in the icmp_send and icmpv6_send functions, so we do the lookup very
early on, so that the rest of the ICMP machinery can progress as usual.
Changes v3->v4:
- Add back the skb_shared checking, since the previous assumption isn't
actually true [Eric]. This implies dropping the additional patches v3 had
for removing skb_share_check from various drivers. We can revisit that
general set of ideas later, but that's probably better suited as a net-next
patchset rather than this stable one which is geared at fixing bugs. So,
this implements things in the safe conservative way.
Changes v2->v3:
- Add selftest to ensure this actually does what we want and never regresses.
- Check the size of the skb header before operating on it.
- Use skb_ensure_writable to ensure we can modify the cloned skb [Florian].
- Conditionalize this on IPS_SRC_NAT so we don't do anything unnecessarily
[Florian].
- It turns out that since we're calling these from the xmit path,
skb_share_check isn't required, so remove that [Florian]. This simplifes the
code a bit too. **The supposition here is that skbs passed to ndo_start_xmit
are _never_ shared. If this is not correct NOW IS THE TIME TO PIPE UP, for
doom awaits us later.**
- While investigating the shared skb business, several drivers appeared to be
calling it incorrectly in the xmit path, so this series also removes those
unnecessary calls, based on the supposition mentioned in the previous point.
Changes v1->v2:
- icmpv6 takes subtly different types than icmpv4, like u32 instead of be32,
u8 instead of int.
- Since we're technically writing to the skb, we need to make sure it's not
a shared one [Dave, 2017].
- Restore the original skb data after icmp_send returns. All current users
are freeing the packet right after, so it doesn't matter, but future users
might not.
- Remove superfluous route lookup in sunvnet [Dave].
- Use NF_NAT instead of NF_CONNTRACK for condition [Florian].
- Include this cover letter [Dave].
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Because xfrmi is calling icmp from network device context, it should use
the ndo helper so that the rate limiting applies correctly.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Because wireguard is calling icmp from network device context, it should
use the ndo helper so that the rate limiting applies correctly. This
commit adds a small test to the wireguard test suite to ensure that the
new functions continue doing the right thing in the context of
wireguard. It does this by setting up a condition that will definately
evoke an icmp error message from the driver, but along a nat'd path.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Because sunvnet is calling icmp from network device context, it should use
the ndo helper so that the rate limiting applies correctly. While we're
at it, doing the additional route lookup before calling icmp_ndo_send is
superfluous, since this is the job of the icmp code in the first place.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Because gtp is calling icmp from network device context, it should use
the ndo helper so that the rate limiting applies correctly.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Harald Welte <laforge@gnumonks.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This introduces a helper function to be called only by network drivers
that wraps calls to icmp[v6]_send in a conntrack transformation, in case
NAT has been used. We don't want to pollute the non-driver path, though,
so we introduce this as a helper to be called by places that actually
make use of this, as suggested by Florian.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull crypto fix from Herbert Xu:
"This fixes a Kconfig anomaly when lib/crypto is enabled without Crypto
API"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: Kconfig - allow tests to be disabled when manager is disabled
Davide Caratti says:
====================
add missing validation of 'skip_hw/skip_sw'
ensure that all classifiers currently supporting HW offload
validate the 'flags' parameter provided by user:
- patch 1/2 fixes cls_matchall
- patch 2/2 fixes cls_flower
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
unlike other classifiers that can be offloaded (i.e. users can set flags
like 'skip_hw' and 'skip_sw'), 'cls_flower' doesn't validate the size of
netlink attribute 'TCA_FLOWER_FLAGS' provided by user: add a proper entry
to fl_policy.
Fixes: 5b33f48842 ("net/flower: Introduce hardware offload support")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
unlike other classifiers that can be offloaded (i.e. users can set flags
like 'skip_hw' and 'skip_sw'), 'cls_matchall' doesn't validate the size
of netlink attribute 'TCA_MATCHALL_FLAGS' provided by user: add a proper
entry to mall_policy.
Fixes: b87f7936a9 ("net/sched: Add match-all classifier hw offloading.")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
@thoff has moved to struct flow_dissector_key_control.
Fixes: 42aecaa9bb ("net: Get skb hash over flow_keys structure")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
"do {} while" in page_pool_refill_alloc_cache will always
refill page once whether refill is true or false, and whether
alloc.count of pool is less than PP_ALLOC_CACHE_REFILL or not
this is wrong, and will cause overflow of pool->alloc.cache
the caller of __page_pool_get_cached should provide guarantee
that pool->alloc.cache is safe to access, so in_serving_softirq
should be removed as suggested by Jesper Dangaard Brouer in
https://patchwork.ozlabs.org/patch/1233713/
so fix this issue by calling page_pool_refill_alloc_cache()
only when pool->alloc.count is zero
Fixes: 44768decb7 ("page_pool: handle page recycle for NUMA_NO_NODE condition")
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Suggested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2020-02-12
This series contains fixes to only the ice driver.
Dave fixes logic flaws in the DCB rebuild function which is used after a
reset. Also fixed a configuration issue when switching between firmware
and software LLDP mode where the number of TLV's configured was getting
out of sync with what lldpad thinks is configured.
Paul fixes how the driver displayed all the supported and advertised
link modes by basing it on the PHY capabilities, and in the process
cleaned up a lot of code.
Brett fixes duplicate receive tail bumps by comparing the value we are
writing to tail with the previously written tail value. Also cleaned up
workarounds that are no longer needed with the latest NVM images.
Anirudh cleaned up unnecessary CONFIG_PCI_IOV wrappers. Updated the
driver to use ice_pf_to_dev() instead of &pf->pdev->dev or
&vsi->back->pdev->dev. Cleaned up the string format in print function
calls to remove newlines where applicable.
Akeem updates the link message logging to include "Full Duplex" and
"Negotiated", to help distinguish from "Requested" for FEC.
Bruce fixes and consolidates the logging of firmware/NVM information
during driver load, since the information is duplicate of what is
available via ethtool. Fixed the checking of the Unit Load Status bits
after reset to ensure they are 0x7FF before continuing, by updating the
mask. Cleanup up possible NULL dereferences that were created by a
previous commit.
Ben fixes the driver to use the correct netif_msg_tx/rx_error() to
determine whether to print the MDD event type.
Tony provides several trivial fixes, which include whitespace, typos,
function header comments, reverse Christmas tree issues.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The commit 66f2d19f81 ("ALSA: pcm: Fix memory leak at closing a
stream without hw_free") tried to fix the regression wrt the missing
hw_free call at closing without SNDRV_PCM_IOCTL_HW_FREE ioctl.
However, the code change dropped mistakenly the state check, resulting
in calling hw_free twice when SNDRV_PCM_IOCTL_HW_FRE got called
beforehand. For most drivers, this is almost harmless, but the
drivers like SOF show another regression now.
This patch adds the state condition check before calling do_hw_free()
at releasing the stream for avoiding the double hw_free calls.
Fixes: 66f2d19f81 ("ALSA: pcm: Fix memory leak at closing a stream without hw_free")
Reported-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reported-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/s5hd0ajyprg.wl-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
It should be safe to ignore clock validity check result if the following
conditions are met:
- only one single sample rate is supported;
- the terminal is directly connected to the clock source;
- the clock type is internal.
This is to deal with some Denon DJ controllers that always reports that
clock is invalid.
Tested-by: Tobias Oszlanyi <toszlanyi@yahoo.de>
Signed-off-by: Alexander Tsoy <alexander@tsoy.me>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200212235450.697348-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai <tiwai@suse.de>
