Roi Dayan [Thu, 3 Feb 2022 07:42:19 +0000 (09:42 +0200)]
net/mlx5e: TC, Skip redundant ct clear actions
Offload of ct clear action is just resetting the reg_c register.
It's done by allocating modify hdr resources which is limited.
Doing it multiple times is redundant and wasting modify hdr resources
and if resources depleted the driver will fail offloading the rule.
Ignore redundant ct clear actions after the first one.
Fixes: 806401c20a0f ("net/mlx5e: CT, Fix multiple allocations and memleak of mod acts")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Ariel Levkovich <lariel@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Roi Dayan [Mon, 17 Jan 2022 13:00:30 +0000 (15:00 +0200)]
net/mlx5e: TC, Reject rules with forward and drop actions
Such rules are redundant but allowed and passed to the driver.
The driver does not support offloading such rules so return an error.
Fixes: 03a9d11e6eeb ("net/mlx5e: Add TC drop and mirred/redirect action parsing for SRIOV offloads")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Roi Dayan [Tue, 4 Jan 2022 08:38:02 +0000 (10:38 +0200)]
net/mlx5e: TC, Reject rules with drop and modify hdr action
This kind of action is not supported by firmware and generates a
syndrome.
kernel: mlx5_core 0000:08:00.0: mlx5_cmd_check:777:(pid 102063): SET_FLOW_TABLE_ENTRY(0x936) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0x8708c3)
Fixes: d7e75a325cb2 ("net/mlx5e: Add offloading of E-Switch TC pedit (header re-write) actions")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Tariq Toukan [Mon, 31 Jan 2022 08:26:19 +0000 (10:26 +0200)]
net/mlx5e: kTLS, Use CHECKSUM_UNNECESSARY for device-offloaded packets
For RX TLS device-offloaded packets, the HW spec guarantees checksum
validation for the offloaded packets, but does not define whether the
CQE.checksum field matches the original packet (ciphertext) or
the decrypted one (plaintext). This latitude allows architetctural
improvements between generations of chips, resulting in different decisions
regarding the value type of CQE.checksum.
Hence, for these packets, the device driver should not make use of this CQE
field. Here we block CHECKSUM_COMPLETE usage for RX TLS device-offloaded
packets, and use CHECKSUM_UNNECESSARY instead.
Value of the packet's tcp_hdr.csum is not modified by the HW, and it always
matches the original ciphertext.
Fixes: 1182f3659357 ("net/mlx5e: kTLS, Add kTLS RX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Gal Pressman [Wed, 2 Feb 2022 14:07:21 +0000 (16:07 +0200)]
net/mlx5e: Fix wrong return value on ioctl EEPROM query failure
The ioctl EEPROM query wrongly returns success on read failures, fix
that by returning the appropriate error code.
Fixes: bb64143eee8c ("net/mlx5e: Add ethtool support for dump module EEPROM")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Maor Gottlieb [Mon, 24 Jan 2022 19:25:04 +0000 (21:25 +0200)]
net/mlx5: Fix possible deadlock on rule deletion
Add missing call to up_write_ref_node() which releases the semaphore
in case the FTE doesn't have destinations, such in drop rule case.
Fixes: 465e7baab6d9 ("net/mlx5: Fix deletion of duplicate rules")
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Chris Mi [Tue, 14 Dec 2021 01:52:53 +0000 (03:52 +0200)]
net/mlx5: Fix tc max supported prio for nic mode
Only prio 1 is supported if firmware doesn't support ignore flow
level for nic mode. The offending commit removed the check wrongly.
Add it back.
Fixes: 9a99c8f1253a ("net/mlx5e: E-Switch, Offload all chain 0 priorities when modify header and forward action is not supported")
Signed-off-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Ariel Levkovich [Fri, 28 Jan 2022 23:39:24 +0000 (01:39 +0200)]
net/mlx5: Fix wrong limitation of metadata match on ecpf
Match metadata support check returns false for ecpf device.
However, this support does exist for ecpf and therefore this
limitation should be removed to allow feature such as stacked
devices and internal port offloaded to be supported.
Fixes: 92ab1eb392c6 ("net/mlx5: E-Switch, Enable vport metadata matching if firmware supports it")
Signed-off-by: Ariel Levkovich <lariel@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Maher Sanalla [Wed, 16 Feb 2022 09:01:04 +0000 (11:01 +0200)]
net/mlx5: Update log_max_qp value to be 17 at most
Currently, log_max_qp value is dependent on what FW reports as its max capability.
In reality, due to a bug, some FWs report a value greater than 17, even though they
don't support log_max_qp > 17.
This FW issue led the driver to exhaust memory on startup.
Thus, log_max_qp value is set to be no more than 17 regardless
of what FW reports, as it was before the cited commit.
Fixes: f79a609ea6bf ("net/mlx5: Update log_max_qp value to FW max capability")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Avihai Horon <avihaih@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Yevgeny Kliteynik [Wed, 29 Dec 2021 20:22:05 +0000 (22:22 +0200)]
net/mlx5: DR, Fix the threshold that defines when pool sync is initiated
When deciding whether to start syncing and actually free all the "hot"
ICM chunks, we need to consider the type of the ICM chunks that we're
dealing with. For instance, the amount of available ICM for MODIFY_ACTION
is significantly lower than the usual STE ICM, so the threshold should
account for that - otherwise we can deplete MODIFY_ACTION memory just by
creating and deleting the same modify header action in a continuous loop.
This patch replaces the hard-coded threshold with a dynamic value.
Fixes: 1c58651412bb ("net/mlx5: DR, ICM memory pools sync optimization")
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Yevgeny Kliteynik [Thu, 13 Jan 2022 12:52:48 +0000 (14:52 +0200)]
net/mlx5: DR, Don't allow match on IP w/o matching on full ethertype/ip_version
Currently SMFS allows adding rule with matching on src/dst IP w/o matching
on full ethertype or ip_version, which is not supported by HW.
This patch fixes this issue and adds the check as it is done in DMFS.
Fixes: 26d688e33f88 ("net/mlx5: DR, Add Steering entry (STE) utilities")
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Yevgeny Kliteynik [Tue, 11 Jan 2022 01:00:03 +0000 (03:00 +0200)]
net/mlx5: DR, Fix slab-out-of-bounds in mlx5_cmd_dr_create_fte
When adding a rule with 32 destinations, we hit the following out-of-band
access issue:
BUG: KASAN: slab-out-of-bounds in mlx5_cmd_dr_create_fte+0x18ee/0x1e70
This patch fixes the issue by both increasing the allocated buffers to
accommodate for the needed actions and by checking the number of actions
to prevent this issue when a rule with too many actions is provided.
Fixes: 1ffd498901c1 ("net/mlx5: DR, Increase supported num of actions to 32")
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Yevgeny Kliteynik [Thu, 23 Dec 2021 23:07:30 +0000 (01:07 +0200)]
net/mlx5: DR, Cache STE shadow memory
During rule insertion on each ICM memory chunk we also allocate shadow memory
used for management. This includes the hw_ste, dr_ste and miss list per entry.
Since the scale of these allocations is large we noticed a performance hiccup
that happens once malloc and free are stressed.
In extreme usecases when ~1M chunks are freed at once, it might take up to 40
seconds to complete this, up to the point the kernel sees this as self-detected
stall on CPU:
rcu: INFO: rcu_sched self-detected stall on CPU
To resolve this we will increase the reuse of shadow memory.
Doing this we see that a time in the aforementioned usecase dropped from ~40
seconds to ~8-10 seconds.
Fixes: 29cf8febd185 ("net/mlx5: DR, ICM pool memory allocator")
Signed-off-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Meir Lichtinger [Mon, 10 Jan 2022 08:14:41 +0000 (10:14 +0200)]
net/mlx5: Update the list of the PCI supported devices
Add the upcoming BlueField-4 and ConnectX-8 device IDs.
Fixes: 2e9d3e83ab82 ("net/mlx5: Update the list of the PCI supported devices")
Signed-off-by: Meir Lichtinger <meirl@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Qiang Yu [Mon, 21 Feb 2022 09:53:56 +0000 (17:53 +0800)]
drm/amdgpu: check vm ready by amdgpu_vm->evicting flag
Workstation application ANSA/META v21.1.4 get this error dmesg when
running CI test suite provided by ANSA/META:
[drm:amdgpu_gem_va_ioctl [amdgpu]] *ERROR* Couldn't update BO_VA (-16)
This is caused by:
1. create a 256MB buffer in invisible VRAM
2. CPU map the buffer and access it causes vm_fault and try to move
it to visible VRAM
3. force visible VRAM space and traverse all VRAM bos to check if
evicting this bo is valuable
4. when checking a VM bo (in invisible VRAM), amdgpu_vm_evictable()
will set amdgpu_vm->evicting, but latter due to not in visible
VRAM, won't really evict it so not add it to amdgpu_vm->evicted
5. before next CS to clear the amdgpu_vm->evicting, user VM ops
ioctl will pass amdgpu_vm_ready() (check amdgpu_vm->evicted)
but fail in amdgpu_vm_bo_update_mapping() (check
amdgpu_vm->evicting) and get this error log
This error won't affect functionality as next CS will finish the
waiting VM ops. But we'd better clear the error log by checking
the amdgpu_vm->evicting flag in amdgpu_vm_ready() to stop calling
amdgpu_vm_bo_update_mapping() later.
Another reason is amdgpu_vm->evicted list holds all BOs (both
user buffer and page table), but only page table BOs' eviction
prevent VM ops. amdgpu_vm->evicting flag is set only for page
table BOs, so we should use evicting flag instead of evicted list
in amdgpu_vm_ready().
The side effect of this change is: previously blocked VM op (user
buffer in "evicted" list but no page table in it) gets done
immediately.
v2: update commit comments.
Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Qiang Yu <qiang.yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Guchun Chen [Fri, 18 Feb 2022 05:05:26 +0000 (13:05 +0800)]
drm/amdgpu: bypass tiling flag check in virtual display case (v2)
vkms leverages common amdgpu framebuffer creation, and
also as it does not support FB modifier, there is no need
to check tiling flags when initing framebuffer when virtual
display is enabled.
This can fix below calltrace:
amdgpu 0000:00:08.0: GFX9+ requires FB check based on format modifier
WARNING: CPU: 0 PID: 1023 at drivers/gpu/drm/amd/amdgpu/amdgpu_display.c:1150 amdgpu_display_framebuffer_init+0x8e7/0xb40 [amdgpu]
v2: check adev->enable_virtual_display instead as vkms can be
enabled in bare metal as well.
Signed-off-by: Leslie Shi <Yuliang.Shi@amd.com>
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Guchun Chen [Fri, 18 Feb 2022 04:57:52 +0000 (12:57 +0800)]
Revert "drm/amdgpu: add modifiers in amdgpu_vkms_plane_init()"
This reverts commit
4046afcebfc3c8c0dd5666c2671b2c192b344f78.
No need to support modifier in virtual kms, otherwise, in SRIOV
mode, when lanuching X server, set crtc will fail due to mismatch
between primary plane modifier and framebuffer modifier.
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Chen Gong [Thu, 17 Feb 2022 07:29:41 +0000 (15:29 +0800)]
drm/amdgpu: do not enable asic reset for raven2
The GPU reset function of raven2 is not maintained or tested, so it should be
very unstable.
Now the amdgpu_asic_reset function is added to amdgpu_pmops_suspend, which
causes the S3 test of raven2 to fail, so the asic_reset of raven2 is ignored
here.
Fixes: daf8de0874ab5b ("drm/amdgpu: always reset the asic in suspend (v2)")
Signed-off-by: Chen Gong <curry.gong@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Nicholas Kazlauskas [Tue, 25 Jan 2022 17:04:34 +0000 (12:04 -0500)]
drm/amd/display: Fix stream->link_enc unassigned during stream removal
[Why]
Found when running igt@kms_atomic.
Userspace attempts to do a TEST_COMMIT when 0 streams which calls
dc_remove_stream_from_ctx. This in turn calls link_enc_unassign
which ends up modifying stream->link = NULL directly, causing the
global link_enc to be removed preventing further link activity
and future link validation from passing.
[How]
We take care of link_enc unassignment at the start of
link_enc_cfg_link_encs_assign so this call is no longer necessary.
Fixes global state from being modified while unlocked.
Reviewed-by: Jimmy Kizito <Jimmy.Kizito@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Mario Limonciello [Tue, 1 Feb 2022 16:26:33 +0000 (10:26 -0600)]
drm/amd: Check if ASPM is enabled from PCIe subsystem
commit
0064b0ce85bb ("drm/amd/pm: enable ASPM by default") enabled ASPM
by default but a variety of hardware configurations it turns out that this
caused a regression.
* PPC64LE hardware does not support ASPM at a hardware level.
CONFIG_PCIEASPM is often disabled on these architectures.
* Some dGPUs on ALD platforms don't work with ASPM enabled and PCIe subsystem
disables it
Check with the PCIe subsystem to see that ASPM has been enabled
or not.
Fixes: 0064b0ce85bb ("drm/amd/pm: enable ASPM by default")
Link: https://wiki.raptorcs.com/w/images/a/ad/P9_PHB_version1.0_27July2018_pub.pdf
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1723
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1739
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1885
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1907
Tested-by: koba.ko@canonical.com
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Shreeya Patel [Wed, 16 Feb 2022 20:26:55 +0000 (01:56 +0530)]
gpio: Return EPROBE_DEFER if gc->to_irq is NULL
We are racing the registering of .to_irq when probing the
i2c driver. This results in random failure of touchscreen
devices.
Following explains the race condition better.
[gpio driver] gpio driver registers gpio chip
[gpio consumer] gpio is acquired
[gpio consumer] gpiod_to_irq() fails with -ENXIO
[gpio driver] gpio driver registers irqchip
gpiod_to_irq works at this point, but -ENXIO is fatal
We could see the following errors in dmesg logs when gc->to_irq is NULL
[2.101857] i2c_hid i2c-FTS3528:00: HID over i2c has not been provided an Int IRQ
[2.101953] i2c_hid: probe of i2c-FTS3528:00 failed with error -22
To avoid this situation, defer probing until to_irq is registered.
Returning -EPROBE_DEFER would be the first step towards avoiding
the failure of devices due to the race in registration of .to_irq.
Final solution to this issue would be to avoid using gc irq members
until they are fully initialized.
This issue has been reported many times in past and people have been
using workarounds like changing the pinctrl_amd to built-in instead
of loading it as a module or by adding a softdep for pinctrl_amd into
the config file.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=209413
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Shreeya Patel <shreeya.patel@collabora.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Linus Torvalds [Wed, 23 Feb 2022 20:06:23 +0000 (12:06 -0800)]
Merge tag 'for-5.17/parisc-4' of git://git./linux/kernel/git/deller/parisc-linux
Pull parisc unaligned handler fixes from Helge Deller:
"Two patches which fix a few bugs in the unalignment handlers.
The fldd and fstd instructions weren't handled at all on 32-bit
kernels, the stw instruction didn't check for fault errors and the
fldw_l and ldw_m were handled wrongly as integer vs floating point
instructions.
Both patches are tagged for stable series"
* tag 'for-5.17/parisc-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc/unaligned: Fix ldw() and stw() unalignment handlers
parisc/unaligned: Fix fldd and fstd unaligned handlers on 32-bit kernel
Linus Torvalds [Wed, 23 Feb 2022 19:51:35 +0000 (11:51 -0800)]
Merge tag 'hwmon-for-v5.17-rc6' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fix two old bugs and one new bug in the hwmon subsystem:
- In pmbus core, clear pmbus fault/warning status bits after read to
follow PMBus standard
- In hwmon core, handle failure to register sensor with thermal zone
correctly
- In ntc_thermal driver, use valid thermistor names for Samsung
thermistors"
* tag 'hwmon-for-v5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (pmbus) Clear pmbus fault/warning bits after read
hwmon: Handle failure to register sensor with thermal zone correctly
hwmon: (ntc_thermistor) Underscore Samsung thermistor
Linus Torvalds [Wed, 23 Feb 2022 19:33:12 +0000 (11:33 -0800)]
Merge tag 'slab-for-5.17-rc6' of git://git./linux/kernel/git/vbabka/slab
Pull slab fixes from Vlastimil Babka:
- Build fix (workaround) for clang.
- Fix a /proc/kcore based slabinfo script broken by struct slab changes
in 5.17-rc1.
* tag 'slab-for-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
tools/cgroup/slabinfo: update to work with struct slab
slab: remove __alloc_size attribute from __kmalloc_track_caller
Bart Van Assche [Tue, 15 Feb 2022 21:05:11 +0000 (13:05 -0800)]
RDMA/ib_srp: Fix a deadlock
Remove the flush_workqueue(system_long_wq) call since flushing
system_long_wq is deadlock-prone and since that call is redundant with a
preceding cancel_work_sync()
Link: https://lore.kernel.org/r/20220215210511.28303-3-bvanassche@acm.org
Fixes: ef6c49d87c34 ("IB/srp: Eliminate state SRP_TARGET_DEAD")
Reported-by: syzbot+831661966588c802aae9@syzkaller.appspotmail.com
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Alex Deucher [Tue, 22 Feb 2022 16:08:01 +0000 (11:08 -0500)]
PCI: Mark all AMD Navi10 and Navi14 GPU ATS as broken
There are enough VBIOS escapes without the proper workaround that some
users still hit this. Microsoft never productized ATS on Windows so OEM
platforms that were Windows-only didn't always validate ATS.
The advantages of ATS are not worth it compared to the potential
instabilities on harvested boards. Disable ATS on all Navi10 and Navi14
boards.
Symptoms include:
amdgpu 0000:07:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0007 address=0xffffc02000 flags=0x0000]
AMD-Vi: Event logged [IO_PAGE_FAULT device=07:00.0 domain=0x0007 address=0xffffc02000 flags=0x0000]
[drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma0 timeout, signaled seq=6047, emitted seq=6049
amdgpu 0000:07:00.0: amdgpu: GPU reset begin!
amdgpu 0000:07:00.0: amdgpu: GPU reset succeeded, trying to resume
amdgpu 0000:07:00.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring sdma0 test failed (-110)
[drm:amdgpu_device_ip_resume_phase2 [amdgpu]] *ERROR* resume of IP block <sdma_v4_0> failed -110
amdgpu 0000:07:00.0: amdgpu: GPU reset(1) failed
Related commits:
e8946a53e2a6 ("PCI: Mark AMD Navi14 GPU ATS as broken")
a2da5d8cc0b0 ("PCI: Mark AMD Raven iGPU ATS as broken in some platforms")
45beb31d3afb ("PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken")
5e89cd303e3a ("PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken")
d28ca864c493 ("PCI: Mark AMD Stoney Radeon R7 GPU ATS as broken")
9b44b0b09dec ("PCI: Mark AMD Stoney GPU ATS as broken")
[bhelgaas: add symptoms and related commits]
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1760
Link: https://lore.kernel.org/r/20220222160801.841643-1-alexander.deucher@amd.com
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Guchun Chen <guchun.chen@amd.com>
Helge Deller [Fri, 18 Feb 2022 22:40:14 +0000 (23:40 +0100)]
parisc/unaligned: Fix ldw() and stw() unalignment handlers
Fix 3 bugs:
a) emulate_stw() doesn't return the error code value, so faulting
instructions are not reported and aborted.
b) Tell emulate_ldw() to handle fldw_l as floating point instruction
c) Tell emulate_ldw() to handle ldw_m as integer instruction
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Helge Deller [Fri, 18 Feb 2022 08:25:20 +0000 (09:25 +0100)]
parisc/unaligned: Fix fldd and fstd unaligned handlers on 32-bit kernel
Usually the kernel provides fixup routines to emulate the fldd and fstd
floating-point instructions if they load or store 8-byte from/to a not
natuarally aligned memory location.
On a 32-bit kernel I noticed that those unaligned handlers didn't worked and
instead the application got a SEGV.
While checking the code I found two problems:
First, the OPCODE_FLDD_L and OPCODE_FSTD_L cases were ifdef'ed out by the
CONFIG_PA20 option, and as such those weren't built on a pure 32-bit kernel.
This is now fixed by moving the CONFIG_PA20 #ifdef to prevent the compilation
of OPCODE_LDD_L and OPCODE_FSTD_L only, and handling the fldd and fstd
instructions.
The second problem are two bugs in the 32-bit inline assembly code, where the
wrong registers where used. The calculation of the natural alignment used %2
(vall) instead of %3 (ior), and the first word was stored back to address %1
(valh) instead of %3 (ior).
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Qu Wenruo [Tue, 22 Feb 2022 17:20:59 +0000 (18:20 +0100)]
btrfs: autodefrag: only scan one inode once
Although we have btrfs_requeue_inode_defrag(), for autodefrag we are
still just exhausting all inode_defrag items in the tree.
This means, it doesn't make much difference to requeue an inode_defrag,
other than scan the inode from the beginning till its end.
Change the behaviour to always scan from offset 0 of an inode, and till
the end.
By this we get the following benefit:
- Straight-forward code
- No more re-queue related check
- Fewer members in inode_defrag
We still keep the same btrfs_get_fs_root() and btrfs_iget() check for
each loop, and added extra should_auto_defrag() check per-loop.
Note: the patch needs to be backported and is intentionally written
to minimize the diff size, code will be cleaned up later.
CC: stable@vger.kernel.org # 5.16
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Qu Wenruo [Fri, 11 Feb 2022 06:46:13 +0000 (14:46 +0800)]
btrfs: defrag: don't use merged extent map for their generation check
For extent maps, if they are not compressed extents and are adjacent by
logical addresses and file offsets, they can be merged into one larger
extent map.
Such merged extent map will have the higher generation of all the
original ones.
But this brings a problem for autodefrag, as it relies on accurate
extent_map::generation to determine if one extent should be defragged.
For merged extent maps, their higher generation can mark some older
extents to be defragged while the original extent map doesn't meet the
minimal generation threshold.
Thus this will cause extra IO.
So solve the problem, here we introduce a new flag, EXTENT_FLAG_MERGED,
to indicate if the extent map is merged from one or more ems.
And for autodefrag, if we find a merged extent map, and its generation
meets the generation requirement, we just don't use this one, and go
back to defrag_get_extent() to read extent maps from subvolume trees.
This could cause more read IO, but should result less defrag data write,
so in the long run it should be a win for autodefrag.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Qu Wenruo [Fri, 11 Feb 2022 06:46:12 +0000 (14:46 +0800)]
btrfs: defrag: bring back the old file extent search behavior
For defrag, we don't really want to use btrfs_get_extent() to iterate
all extent maps of an inode.
The reasons are:
- btrfs_get_extent() can merge extent maps
And the result em has the higher generation of the two, causing defrag
to mark unnecessary part of such merged large extent map.
This in fact can result extra IO for autodefrag in v5.16+ kernels.
However this patch is not going to completely solve the problem, as
one can still using read() to trigger extent map reading, and got
them merged.
The completely solution for the extent map merging generation problem
will come as an standalone fix.
- btrfs_get_extent() caches the extent map result
Normally it's fine, but for defrag the target range may not get
another read/write for a long long time.
Such cache would only increase the memory usage.
- btrfs_get_extent() doesn't skip older extent map
Unlike the old find_new_extent() which uses btrfs_search_forward() to
skip the older subtree, thus it will pick up unnecessary extent maps.
This patch will fix the regression by introducing defrag_get_extent() to
replace the btrfs_get_extent() call.
This helper will:
- Not cache the file extent we found
It will search the file extent and manually convert it to em.
- Use btrfs_search_forward() to skip entire ranges which is modified in
the past
This should reduce the IO for autodefrag.
Reported-by: Filipe Manana <fdmanana@suse.com>
Fixes: 7b508037d4ca ("btrfs: defrag: use defrag_one_cluster() to implement btrfs_defrag_file()")
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Qu Wenruo [Fri, 28 Jan 2022 07:21:22 +0000 (15:21 +0800)]
btrfs: defrag: remove an ambiguous condition for rejection
From the very beginning of btrfs defrag, there is a check to reject
extents which meet both conditions:
- Physically adjacent
We may want to defrag physically adjacent extents to reduce the number
of extents or the size of subvolume tree.
- Larger than 128K
This may be there for compressed extents, but unfortunately 128K is
exactly the max capacity for compressed extents.
And the check is > 128K, thus it never rejects compressed extents.
Furthermore, the compressed extent capacity bug is fixed by previous
patch, there is no reason for that check anymore.
The original check has a very small ranges to reject (the target extent
size is > 128K, and default extent threshold is 256K), and for
compressed extent it doesn't work at all.
So it's better just to remove the rejection, and allow us to defrag
physically adjacent extents.
CC: stable@vger.kernel.org # 5.16
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Qu Wenruo [Fri, 28 Jan 2022 07:21:21 +0000 (15:21 +0800)]
btrfs: defrag: don't defrag extents which are already at max capacity
[BUG]
For compressed extents, defrag ioctl will always try to defrag any
compressed extents, wasting not only IO but also CPU time to
compress/decompress:
mkfs.btrfs -f $DEV
mount -o compress $DEV $MNT
xfs_io -f -c "pwrite -S 0xab 0 128K" $MNT/foobar
sync
xfs_io -f -c "pwrite -S 0xcd 128K 128K" $MNT/foobar
sync
echo "=== before ==="
xfs_io -c "fiemap -v" $MNT/foobar
btrfs filesystem defrag $MNT/foobar
sync
echo "=== after ==="
xfs_io -c "fiemap -v" $MNT/foobar
Then it shows the 2 128K extents just get COW for no extra benefit, with
extra IO/CPU spent:
=== before ===
/mnt/btrfs/file1:
EXT: FILE-OFFSET BLOCK-RANGE TOTAL FLAGS
0: [0..255]: 26624..26879 256 0x8
1: [256..511]: 26632..26887 256 0x9
=== after ===
/mnt/btrfs/file1:
EXT: FILE-OFFSET BLOCK-RANGE TOTAL FLAGS
0: [0..255]: 26640..26895 256 0x8
1: [256..511]: 26648..26903 256 0x9
This affects not only v5.16 (after the defrag rework), but also v5.15
(before the defrag rework).
[CAUSE]
From the very beginning, btrfs defrag never checks if one extent is
already at its max capacity (128K for compressed extents, 128M
otherwise).
And the default extent size threshold is 256K, which is already beyond
the compressed extent max size.
This means, by default btrfs defrag ioctl will mark all compressed
extent which is not adjacent to a hole/preallocated range for defrag.
[FIX]
Introduce a helper to grab the maximum extent size, and then in
defrag_collect_targets() and defrag_check_next_extent(), reject extents
which are already at their max capacity.
Reported-by: Filipe Manana <fdmanana@suse.com>
CC: stable@vger.kernel.org # 5.16
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Qu Wenruo [Fri, 28 Jan 2022 07:21:20 +0000 (15:21 +0800)]
btrfs: defrag: don't try to merge regular extents with preallocated extents
[BUG]
With older kernels (before v5.16), btrfs will defrag preallocated extents.
While with newer kernels (v5.16 and newer) btrfs will not defrag
preallocated extents, but it will defrag the extent just before the
preallocated extent, even it's just a single sector.
This can be exposed by the following small script:
mkfs.btrfs -f $dev > /dev/null
mount $dev $mnt
xfs_io -f -c "pwrite 0 4k" -c sync -c "falloc 4k 16K" $mnt/file
xfs_io -c "fiemap -v" $mnt/file
btrfs fi defrag $mnt/file
sync
xfs_io -c "fiemap -v" $mnt/file
The output looks like this on older kernels:
/mnt/btrfs/file:
EXT: FILE-OFFSET BLOCK-RANGE TOTAL FLAGS
0: [0..7]: 26624..26631 8 0x0
1: [8..39]: 26632..26663 32 0x801
/mnt/btrfs/file:
EXT: FILE-OFFSET BLOCK-RANGE TOTAL FLAGS
0: [0..39]: 26664..26703 40 0x1
Which defrags the single sector along with the preallocated extent, and
replace them with an regular extent into a new location (caused by data
COW).
This wastes most of the data IO just for the preallocated range.
On the other hand, v5.16 is slightly better:
/mnt/btrfs/file:
EXT: FILE-OFFSET BLOCK-RANGE TOTAL FLAGS
0: [0..7]: 26624..26631 8 0x0
1: [8..39]: 26632..26663 32 0x801
/mnt/btrfs/file:
EXT: FILE-OFFSET BLOCK-RANGE TOTAL FLAGS
0: [0..7]: 26664..26671 8 0x0
1: [8..39]: 26632..26663 32 0x801
The preallocated range is not defragged, but the sector before it still
gets defragged, which has no need for it.
[CAUSE]
One of the function reused by the old and new behavior is
defrag_check_next_extent(), it will determine if we should defrag
current extent by checking the next one.
It only checks if the next extent is a hole or inlined, but it doesn't
check if it's preallocated.
On the other hand, out of the function, both old and new kernel will
reject preallocated extents.
Such inconsistent behavior causes above behavior.
[FIX]
- Also check if next extent is preallocated
If so, don't defrag current extent.
- Add comments for each branch why we reject the extent
This will reduce the IO caused by defrag ioctl and autodefrag.
CC: stable@vger.kernel.org # 5.16
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Varun Prakash [Sat, 22 Jan 2022 16:57:44 +0000 (22:27 +0530)]
nvme-tcp: send H2CData PDUs based on MAXH2CDATA
As per NVMe/TCP specification (revision 1.0a, section 3.6.2.3)
Maximum Host to Controller Data length (MAXH2CDATA): Specifies the
maximum number of PDU-Data bytes per H2CData PDU in bytes. This value
is a multiple of dwords and should be no less than 4,096.
Current code sets H2CData PDU data_length to r2t_length,
it does not check MAXH2CDATA value. Fix this by setting H2CData PDU
data_length to min(req->h2cdata_left, queue->maxh2cdata).
Also validate MAXH2CDATA value returned by target in ICResp PDU,
if it is not a multiple of dword or if it is less than 4096 return
-EINVAL from nvme_tcp_init_connection().
Signed-off-by: Varun Prakash <varun@chelsio.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Christoph Hellwig [Wed, 16 Feb 2022 13:14:58 +0000 (14:14 +0100)]
nvme: also mark passthrough-only namespaces ready in nvme_update_ns_info
Commit
e7d65803e2bb ("nvme-multipath: revalidate paths during rescan")
introduced the NVME_NS_READY flag, which nvme_path_is_disabled() uses
to check if a path can be used or not. We also need to set this flag
for devices that fail the ZNS feature validation and which are available
through passthrough devices only to that they can be used in multipathing
setups.
Fixes: e7d65803e2bb ("nvme-multipath: revalidate paths during rescan")
Reported-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Tested-by: Kanchan Joshi <joshi.k@samsung.com>
Christoph Hellwig [Wed, 16 Feb 2022 14:07:15 +0000 (15:07 +0100)]
nvme: don't return an error from nvme_configure_metadata
When a fabrics controller claims to support an invalidate metadata
configuration we already warn and disable metadata support. No need to
also return an error during revalidation.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Tested-by: Kanchan Joshi <joshi.k@samsung.com>
Maxime Ripard [Thu, 3 Feb 2022 11:54:16 +0000 (12:54 +0100)]
drm/edid: Always set RGB444
In order to fill the drm_display_info structure each time an EDID is
read, the code currently will call drm_add_display_info with the parsed
EDID.
drm_add_display_info will then call drm_reset_display_info to reset all
the fields to 0, and then set them to the proper value depending on the
EDID.
In the color_formats case, we will thus report that we don't support any
color format, and then fill it back with RGB444 plus the additional
formats described in the EDID Feature Support byte.
However, since that byte only contains format-related bits since the 1.4
specification, this doesn't happen if the EDID is following an earlier
specification. In turn, it means that for one of these EDID, we end up
with color_formats set to 0.
The EDID 1.3 specification never really specifies what it means by RGB
exactly, but since both HDMI and DVI will use RGB444, it's fairly safe
to assume it's supposed to be RGB444.
Let's move the addition of RGB444 to color_formats earlier in
drm_add_display_info() so that it's always set for a digital display.
Fixes: da05a5a71ad8 ("drm: parse color format support for digital displays")
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reported-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220203115416.1137308-1-maxime@cerno.tech
David S. Miller [Wed, 23 Feb 2022 12:50:19 +0000 (12:50 +0000)]
Merge branch 'ftgmac100-fixes'
Heyi Guo says:
====================
drivers/net/ftgmac100: fix occasional DHCP failure
This patch set is to fix the issues discussed in the mail thread:
https://lore.kernel.org/netdev/
51f5b7a7-330f-6b3c-253d-
10e45cdb6805@linux.alibaba.com/
and follows the advice from Andrew Lunn.
The first 2 patches refactors the code to enable adjust_link calling reset
function directly.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Heyi Guo [Wed, 23 Feb 2022 03:14:36 +0000 (11:14 +0800)]
drivers/net/ftgmac100: fix DHCP potential failure with systemd
DHCP failures were observed with systemd 247.6. The issue could be
reproduced by rebooting Aspeed 2600 and then running ifconfig ethX
down/up.
It is caused by below procedures in the driver:
1. ftgmac100_open() enables net interface and call phy_start()
2. When PHY is link up, it calls netif_carrier_on() and then
adjust_link callback
3. ftgmac100_adjust_link() will schedule the reset task
4. ftgmac100_reset_task() will then reset the MAC in another schedule
After step 2, systemd will be notified to send DHCP discover packet,
while the packet might be corrupted by MAC reset operation in step 4.
Call ftgmac100_reset() directly instead of scheduling task to fix the
issue.
Signed-off-by: Heyi Guo <guoheyi@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heyi Guo [Wed, 23 Feb 2022 03:14:35 +0000 (11:14 +0800)]
drivers/net/ftgmac100: adjust code place for function call dependency
This is to prepare for ftgmac100_adjust_link() to call
ftgmac100_reset() directly. Only code places are changed.
Signed-off-by: Heyi Guo <guoheyi@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heyi Guo [Wed, 23 Feb 2022 03:14:34 +0000 (11:14 +0800)]
drivers/net/ftgmac100: refactor ftgmac100_reset_task to enable direct function call
This is to prepare for ftgmac100_adjust_link() to call reset function
directly, instead of task schedule.
Signed-off-by: Heyi Guo <guoheyi@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wan Jiabing [Wed, 23 Feb 2022 02:34:19 +0000 (10:34 +0800)]
net: sched: avoid newline at end of message in NL_SET_ERR_MSG_MOD
Fix following coccicheck warning:
./net/sched/act_api.c:277:7-49: WARNING avoid newline at end of message
in NL_SET_ERR_MSG_MOD
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alvin Šipraga [Tue, 22 Feb 2022 16:14:08 +0000 (17:14 +0100)]
MAINTAINERS: add myself as co-maintainer for Realtek DSA switch drivers
Adding myself (Alvin Šipraga) as another maintainer for the Realtek DSA
switch drivers. I intend to help Linus out with reviewing and testing
changes to these drivers, particularly the rtl8365mb driver which I
authored and have hardware access to.
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Tue, 22 Feb 2022 13:43:12 +0000 (16:43 +0300)]
tipc: Fix end of loop tests for list_for_each_entry()
These tests are supposed to check if the loop exited via a break or not.
However the tests are wrong because if we did not exit via a break then
"p" is not a valid pointer. In that case, it's the equivalent of
"if (*(u32 *)sr == *last_key) {". That's going to work most of the time,
but there is a potential for those to be equal.
Fixes: 1593123a6a49 ("tipc: add name table dump to new netlink api")
Fixes: 1a1a143daf84 ("tipc: add publication dump to new netlink api")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Tue, 22 Feb 2022 13:42:51 +0000 (16:42 +0300)]
udp_tunnel: Fix end of loop test in udp_tunnel_nic_unregister()
This test is checking if we exited the list via break or not. However
if it did not exit via a break then "node" does not point to a valid
udp_tunnel_nic_shared_node struct. It will work because of the way
the structs are laid out it's the equivalent of
"if (info->shared->udp_tunnel_nic_info != dev)" which will always be
true, but it's not the right way to test.
Fixes: 74cc6d182d03 ("udp_tunnel: add the ability to share port tables")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefano Garzarella [Tue, 22 Feb 2022 09:47:42 +0000 (10:47 +0100)]
vhost/vsock: don't check owner in vhost_vsock_stop() while releasing
vhost_vsock_stop() calls vhost_dev_check_owner() to check the device
ownership. It expects current->mm to be valid.
vhost_vsock_stop() is also called by vhost_vsock_dev_release() when
the user has not done close(), so when we are in do_exit(). In this
case current->mm is invalid and we're releasing the device, so we
should clean it anyway.
Let's check the owner only when vhost_vsock_stop() is called
by an ioctl.
When invoked from release we can not fail so we don't check return
code of vhost_vsock_stop(). We need to stop vsock even if it's not
the owner.
Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko")
Cc: stable@vger.kernel.org
Reported-by: syzbot+1e3ea63db39f2b4440e0@syzkaller.appspotmail.com
Reported-and-tested-by: syzbot+3140b17cb44a7b174008@syzkaller.appspotmail.com
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thierry Reding [Mon, 20 Dec 2021 10:28:22 +0000 (11:28 +0100)]
drm/tegra: dpaux: Populate AUX bus
The DPAUX hardware block exposes an DP AUX interface that provides
access to an AUX bus and the devices on that bus. Use the DP AUX bus
infrastructure that was recently introduced to probe devices on this
bus from DT.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Christian König [Mon, 21 Feb 2022 08:31:28 +0000 (09:31 +0100)]
drm/radeon: fix variable type
When we switch to dma_resv_wait_timeout() the returned type changes as
well.
Signed-off-by: Christian König <christian.koenig@amd.com>
Fixes: 89aae41d740f ("drm/radeon: use dma_resv_wait_timeout() instead of manually waiting")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=215600
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220221110503.2803-1-christian.koenig@amd.com
Sukadev Bhattiprolu [Mon, 21 Feb 2022 21:05:45 +0000 (15:05 -0600)]
ibmvnic: schedule failover only if vioctl fails
If client is unable to initiate a failover reset via H_VIOCTL hcall, then
it should schedule a failover reset as a last resort. Otherwise, there is
no need to do a last resort.
Fixes: 334c42414729 ("ibmvnic: improve failover sysfs entry")
Reported-by: Cris Forno <cforno12@outlook.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: Dany Madden <drt@linux.ibm.com>
Link: https://lore.kernel.org/r/20220221210545.115283-1-drt@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Alvin Šipraga [Mon, 21 Feb 2022 20:35:38 +0000 (21:35 +0100)]
net: dsa: fix panic when removing unoffloaded port from bridge
If a bridged port is not offloaded to the hardware - either because the
underlying driver does not implement the port_bridge_{join,leave} ops,
or because the operation failed - then its dp->bridge pointer will be
NULL when dsa_port_bridge_leave() is called. Avoid dereferncing NULL.
This fixes the following splat when removing a port from a bridge:
Unable to handle kernel access to user memory outside uaccess routines at virtual address
0000000000000000
Internal error: Oops:
96000004 [#1] PREEMPT_RT SMP
CPU: 3 PID: 1119 Comm: brctl Tainted: G O 5.17.0-rc4-rt4 #1
Call trace:
dsa_port_bridge_leave+0x8c/0x1e4
dsa_slave_changeupper+0x40/0x170
dsa_slave_netdevice_event+0x494/0x4d4
notifier_call_chain+0x80/0xe0
raw_notifier_call_chain+0x1c/0x24
call_netdevice_notifiers_info+0x5c/0xac
__netdev_upper_dev_unlink+0xa4/0x200
netdev_upper_dev_unlink+0x38/0x60
del_nbp+0x1b0/0x300
br_del_if+0x38/0x114
add_del_if+0x60/0xa0
br_ioctl_stub+0x128/0x2dc
br_ioctl_call+0x68/0xb0
dev_ifsioc+0x390/0x554
dev_ioctl+0x128/0x400
sock_do_ioctl+0xb4/0xf4
sock_ioctl+0x12c/0x4e0
__arm64_sys_ioctl+0xa8/0xf0
invoke_syscall+0x4c/0x110
el0_svc_common.constprop.0+0x48/0xf0
do_el0_svc+0x28/0x84
el0_svc+0x1c/0x50
el0t_64_sync_handler+0xa8/0xb0
el0t_64_sync+0x17c/0x180
Code:
f9402f00 f0002261 f9401302 913cc021 (
a9401404)
---[ end trace
0000000000000000 ]---
Fixes: d3eed0e57d5d ("net: dsa: keep the bridge_dev and bridge_num as part of the same structure")
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220221203539.310690-1-alvin@pqrs.dk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Sergey Shtylyov [Sat, 19 Feb 2022 17:44:43 +0000 (20:44 +0300)]
ata: pata_hpt37x: disable primary channel on HPT371
The HPT371 chip physically has only one channel, the secondary one,
however the primary channel registers do exist! Thus we have to
manually disable the non-existing channel if the BIOS hasn't done this
already. Similarly to the pata_hpt3x2n driver, always disable the
primary channel.
Fixes: 669a5db411d8 ("[libata] Add a bunch of PATA drivers.")
Cc: stable@vger.kernel.org
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Eric Dumazet [Sun, 20 Feb 2022 15:40:52 +0000 (07:40 -0800)]
net: __pskb_pull_tail() & pskb_carve_frag_list() drop_monitor friends
Whenever one of these functions pull all data from an skb in a frag_list,
use consume_skb() instead of kfree_skb() to avoid polluting drop
monitoring.
Fixes: 6fa01ccd8830 ("skbuff: Add pskb_extract() helper function")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220220154052.1308469-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
German Gomez [Mon, 21 Feb 2022 17:17:06 +0000 (17:17 +0000)]
perf script: Fix error when printing 'weight' field
In SPE traces the 'weight' field can't be printed in 'perf script'
because the 'dummy:u' event doesn't have the WEIGHT attribute set.
Use evsel__do_check_stype(..) to check this field, as it's done with
other fields such as "phys_addr".
Before:
$ perf record -e arm_spe_0// -- sleep 1
$ perf script -F event,ip,weight
Samples for 'dummy:u' event do not have WEIGHT attribute set. Cannot print 'weight' field.
After:
$ perf script -F event,ip,weight
l1d-access: 12
ffffaf629d4cb320
tlb-access: 12
ffffaf629d4cb320
memory: 12
ffffaf629d4cb320
Fixes: b0fde9c6e291e528 ("perf arm-spe: Add SPE total latency as PERF_SAMPLE_WEIGHT")
Signed-off-by: German Gomez <german.gomez@arm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220221171707.62960-1-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Linus Torvalds [Wed, 23 Feb 2022 00:14:35 +0000 (16:14 -0800)]
Merge branch 'for-5.17-fixes' of git://git./linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
- Fix for a subtle bug in the recent release_agent permission check
update
- Fix for a long-standing race condition between cpuset and cpu hotplug
- Comment updates
* 'for-5.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: Fix kernel-doc
cgroup-v1: Correct privileges check in release_agent writes
cgroup: clarify cgroup_css_set_fork()
cgroup/cpuset: Fix a race between cpuset_attach() and cpu hotplug
Ondrej Mosnacek [Mon, 21 Feb 2022 14:06:49 +0000 (15:06 +0100)]
selinux: fix misuse of mutex_is_locked()
mutex_is_locked() tests whether the mutex is locked *by any task*, while
here we want to test if it is held *by the current task*. To avoid
false/missed WARNINGs, use lockdep_assert_is_held() and
lockdep_assert_is_not_held() instead, which do the right thing (though
they are a no-op if CONFIG_LOCKDEP=n).
Cc: stable@vger.kernel.org
Fixes: 2554a48f4437 ("selinux: measure state and policy capabilities")
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Krzysztof Kozlowski [Mon, 21 Feb 2022 10:07:01 +0000 (11:07 +0100)]
dt-bindings: update Roger Quadros email
Emails to Roger Quadros TI account bounce with:
550 Invalid recipient <rogerq@ti.com> (#5.1.1)
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Roger Quadros <rogerq@kernel.org>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220221100701.48593-1-krzysztof.kozlowski@canonical.com
Krzysztof Kozlowski [Mon, 14 Feb 2022 08:23:49 +0000 (09:23 +0100)]
MAINTAINERS: sifive: drop Yash Shah
Emails to Yash Shah bounce with "The email account that you tried to
reach does not exist.", so drop him from all maintainer entries.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220214082349.162973-1-krzysztof.kozlowski@canonical.com
Arnaldo Carvalho de Melo [Fri, 7 Aug 2020 11:45:47 +0000 (08:45 -0300)]
tools arch x86: Sync the msr-index.h copy with the kernel sources
To pick up the changes in:
3915035282573c5e ("KVM: x86: SVM: move avic definitions from AMD's spec to svm.h")
Addressing these tools/perf build warnings:
diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h'
That makes the beautification scripts to pick some new entries:
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before
$ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after
$ diff -u before after
--- before 2022-02-22 17:35:36.
996271430 -0300
+++ after 2022-02-22 17:35:46.
258503347 -0300
@@ -287,6 +287,7 @@
[0xc0010114 - x86_AMD_V_KVM_MSRs_offset] = "VM_CR",
[0xc0010115 - x86_AMD_V_KVM_MSRs_offset] = "VM_IGNNE",
[0xc0010117 - x86_AMD_V_KVM_MSRs_offset] = "VM_HSAVE_PA",
+ [0xc001011b - x86_AMD_V_KVM_MSRs_offset] = "AMD64_SVM_AVIC_DOORBELL",
[0xc001011e - x86_AMD_V_KVM_MSRs_offset] = "AMD64_VM_PAGE_FLUSH",
[0xc001011f - x86_AMD_V_KVM_MSRs_offset] = "AMD64_VIRT_SPEC_CTRL",
[0xc0010130 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_SEV_ES_GHCB",
$
And this gets rebuilt:
CC /tmp/build/perf/trace/beauty/tracepoints/x86_msr.o
LD /tmp/build/perf/trace/beauty/tracepoints/perf-in.o
LD /tmp/build/perf/trace/beauty/perf-in.o
CC /tmp/build/perf/util/amd-sample-raw.o
LD /tmp/build/perf/util/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
Now one can trace systemwide asking to see backtraces to where those
MSRs are being read/written with:
# perf trace -e msr:*_msr/max-stack=32/ --filter="msr>=AMD64_SVM_AVIC_DOORBELL && msr<=AMD64_SEV_ES_GHCB"
^C#
If we use -v (verbose mode) we can see what it does behind the scenes:
# perf trace -v -e msr:*_msr/max-stack=32/ --filter="msr>=AMD64_SVM_AVIC_DOORBELL && msr<=AMD64_SEV_ES_GHCB"
Using CPUID AuthenticAMD-25-21-0
0xc001011b
0xc0010130
New filter for msr:read_msr: (msr>=0xc001011b && msr<=0xc0010130) && (common_pid !=
1019953 && common_pid != 3629)
0xc001011b
0xc0010130
New filter for msr:write_msr: (msr>=0xc001011b && msr<=0xc0010130) && (common_pid !=
1019953 && common_pid != 3629)
mmap size
528384B
^C#
Example with a frequent msr:
# perf trace -v -e msr:*_msr/max-stack=32/ --filter="msr==IA32_SPEC_CTRL" --max-events 2
Using CPUID AuthenticAMD-25-21-0
0x48
New filter for msr:read_msr: (msr==0x48) && (common_pid !=
2612129 && common_pid != 3841)
0x48
New filter for msr:write_msr: (msr==0x48) && (common_pid !=
2612129 && common_pid != 3841)
mmap size
528384B
Looking at the vmlinux_path (8 entries long)
symsrc__init: build id mismatch for vmlinux.
Using /proc/kcore for kernel data
Using /proc/kallsyms for symbols
0.000 Timer/
2525383 msr:write_msr(msr: IA32_SPEC_CTRL, val: 6)
do_trace_write_msr ([kernel.kallsyms])
do_trace_write_msr ([kernel.kallsyms])
__switch_to_xtra ([kernel.kallsyms])
__switch_to ([kernel.kallsyms])
__schedule ([kernel.kallsyms])
schedule ([kernel.kallsyms])
futex_wait_queue_me ([kernel.kallsyms])
futex_wait ([kernel.kallsyms])
do_futex ([kernel.kallsyms])
__x64_sys_futex ([kernel.kallsyms])
do_syscall_64 ([kernel.kallsyms])
entry_SYSCALL_64_after_hwframe ([kernel.kallsyms])
__futex_abstimed_wait_common64 (/usr/lib64/libpthread-2.33.so)
0.030 :0/0 msr:write_msr(msr: IA32_SPEC_CTRL, val: 2)
do_trace_write_msr ([kernel.kallsyms])
do_trace_write_msr ([kernel.kallsyms])
__switch_to_xtra ([kernel.kallsyms])
__switch_to ([kernel.kallsyms])
__schedule ([kernel.kallsyms])
schedule_idle ([kernel.kallsyms])
do_idle ([kernel.kallsyms])
cpu_startup_entry ([kernel.kallsyms])
secondary_startup_64_no_verify ([kernel.kallsyms])
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Maxim Levitsky <mlevitsk@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Link: http://lore.kernel.org/lkml/YhVKxaft+z8rpOfy@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Alexey Bayduraev [Fri, 18 Feb 2022 15:23:41 +0000 (18:23 +0300)]
perf data: Fix double free in perf_session__delete()
When perf_data__create_dir() fails, it calls close_dir(), but
perf_session__delete() also calls close_dir() and since dir.version and
dir.nr were initialized by perf_data__create_dir(), a double free occurs.
This patch moves the initialization of dir.version and dir.nr after
successful initialization of dir.files, that prevents double freeing.
This behavior is already implemented in perf_data__open_dir().
Fixes: 145520631130bd64 ("perf data: Add perf_data__(create_dir|close_dir) functions")
Signed-off-by: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Budankov <abudankov@huawei.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220218152341.5197-2-alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Jiapeng Chong [Wed, 16 Feb 2022 03:17:53 +0000 (11:17 +0800)]
cpuset: Fix kernel-doc
Fix the following W=1 kernel warnings:
kernel/cgroup/cpuset.c:3718: warning: expecting prototype for
cpuset_memory_pressure_bump(). Prototype was for
__cpuset_memory_pressure_bump() instead.
kernel/cgroup/cpuset.c:3568: warning: expecting prototype for
cpuset_node_allowed(). Prototype was for __cpuset_node_allowed()
instead.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Linus Torvalds [Tue, 22 Feb 2022 18:31:53 +0000 (10:31 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/viro/vfs
Pull ITER_PIPE fix from Al Viro:
"Fix for old sloppiness in pipe_buffer reuse"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
lib/iov_iter: initialize "flags" in new pipe_buffer
Michal Koutný [Thu, 17 Feb 2022 16:11:28 +0000 (17:11 +0100)]
cgroup-v1: Correct privileges check in release_agent writes
The idea is to check: a) the owning user_ns of cgroup_ns, b)
capabilities in init_user_ns.
The commit
24f600856418 ("cgroup-v1: Require capabilities to set
release_agent") got this wrong in the write handler of release_agent
since it checked user_ns of the opener (may be different from the owning
user_ns of cgroup_ns).
Secondly, to avoid possibly confused deputy, the capability of the
opener must be checked.
Fixes: 24f600856418 ("cgroup-v1: Require capabilities to set release_agent")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/stable/20220216121142.GB30035@blackbody.suse.cz/
Signed-off-by: Michal Koutný <mkoutny@suse.com>
Reviewed-by: Masami Ichikawa(CIP) <masami.ichikawa@cybertrust.co.jp>
Signed-off-by: Tejun Heo <tj@kernel.org>
Christian Brauner [Mon, 21 Feb 2022 15:16:39 +0000 (16:16 +0100)]
cgroup: clarify cgroup_css_set_fork()
With recent fixes for the permission checking when moving a task into a cgroup
using a file descriptor to a cgroup's cgroup.procs file and calling write() it
seems a good idea to clarify CLONE_INTO_CGROUP permission checking with a
comment.
Cc: Tejun Heo <tj@kernel.org>
Cc: <cgroups@vger.kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
ChenXiaoSong [Tue, 15 Feb 2022 07:10:30 +0000 (15:10 +0800)]
configfs: fix a race in configfs_{,un}register_subsystem()
When configfs_register_subsystem() or configfs_unregister_subsystem()
is executing link_group() or unlink_group(),
it is possible that two processes add or delete list concurrently.
Some unfortunate interleavings of them can cause kernel panic.
One of cases is:
A --> B --> C --> D
A <-- B <-- C <-- D
delete list_head *B | delete list_head *C
--------------------------------|-----------------------------------
configfs_unregister_subsystem | configfs_unregister_subsystem
unlink_group | unlink_group
unlink_obj | unlink_obj
list_del_init | list_del_init
__list_del_entry | __list_del_entry
__list_del | __list_del
// next == C |
next->prev = prev |
| next->prev = prev
prev->next = next |
| // prev == B
| prev->next = next
Fix this by adding mutex when calling link_group() or unlink_group(),
but parent configfs_subsystem is NULL when config_item is root.
So I create a mutex configfs_subsystem_mutex.
Fixes: 7063fbf22611 ("[PATCH] configfs: User-driven configuration filesystem")
Signed-off-by: ChenXiaoSong <chenxiaosong2@huawei.com>
Signed-off-by: Laibin Qiu <qiulaibin@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Dylan Yudaken [Tue, 22 Feb 2022 16:17:51 +0000 (08:17 -0800)]
io_uring: disallow modification of rsrc_data during quiesce
io_rsrc_ref_quiesce will unlock the uring while it waits for references to
the io_rsrc_data to be killed.
There are other places to the data that might add references to data via
calls to io_rsrc_node_switch.
There is a race condition where this reference can be added after the
completion has been signalled. At this point the io_rsrc_ref_quiesce call
will wake up and relock the uring, assuming the data is unused and can be
freed - although it is actually being used.
To fix this check in io_rsrc_ref_quiesce if a resource has been revived.
Reported-by: syzbot+ca8bf833622a1662745b@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220222161751.995746-1-dylany@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Vikash Chandola [Tue, 22 Feb 2022 13:12:53 +0000 (13:12 +0000)]
hwmon: (pmbus) Clear pmbus fault/warning bits after read
Almost all fault/warning bits in pmbus status registers remain set even
after fault/warning condition are removed. As per pmbus specification
these faults must be cleared by user.
Modify hwmon behavior to clear fault/warning bit after fetching data if
fault/warning bit was set. This allows to get fresh data in next read.
Signed-off-by: Vikash Chandola <vikash.chandola@linux.intel.com>
Link: https://lore.kernel.org/r/20220222131253.2426834-1-vikash.chandola@linux.intel.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Guenter Roeck [Mon, 21 Feb 2022 16:32:14 +0000 (08:32 -0800)]
hwmon: Handle failure to register sensor with thermal zone correctly
If an attempt is made to a sensor with a thermal zone and it fails,
the call to devm_thermal_zone_of_sensor_register() may return -ENODEV.
This may result in crashes similar to the following.
Unable to handle kernel NULL pointer dereference at virtual address
00000000000003cd
...
Internal error: Oops:
96000021 [#1] PREEMPT SMP
...
pstate:
60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : mutex_lock+0x18/0x60
lr : thermal_zone_device_update+0x40/0x2e0
sp :
ffff800014c4fc60
x29:
ffff800014c4fc60 x28:
ffff365ee3f6e000 x27:
ffffdde218426790
x26:
ffff365ee3f6e000 x25:
0000000000000000 x24:
ffff365ee3f6e000
x23:
ffffdde218426870 x22:
ffff365ee3f6e000 x21:
00000000000003cd
x20:
ffff365ee8bf3308 x19:
ffffffffffffffed x18:
0000000000000000
x17:
ffffdde21842689c x16:
ffffdde1cb7a0b7c x15:
0000000000000040
x14:
ffffdde21a4889a0 x13:
0000000000000228 x12:
0000000000000000
x11:
0000000000000000 x10:
0000000000000000 x9 :
0000000000000000
x8 :
0000000001120000 x7 :
0000000000000001 x6 :
0000000000000000
x5 :
0068000878e20f07 x4 :
0000000000000000 x3 :
00000000000003cd
x2 :
ffff365ee3f6e000 x1 :
0000000000000000 x0 :
00000000000003cd
Call trace:
mutex_lock+0x18/0x60
hwmon_notify_event+0xfc/0x110
0xffffdde1cb7a0a90
0xffffdde1cb7a0b7c
irq_thread_fn+0x2c/0xa0
irq_thread+0x134/0x240
kthread+0x178/0x190
ret_from_fork+0x10/0x20
Code:
d503201f d503201f d2800001 aa0103e4 (
c8e47c02)
Jon Hunter reports that the exact call sequence is:
hwmon_notify_event()
--> hwmon_thermal_notify()
--> thermal_zone_device_update()
--> update_temperature()
--> mutex_lock()
The hwmon core needs to handle all errors returned from calls
to devm_thermal_zone_of_sensor_register(). If the call fails
with -ENODEV, report that the sensor was not attached to a
thermal zone but continue to register the hwmon device.
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Cc: Dmitry Osipenko <digetx@gmail.com>
Fixes: 1597b374af222 ("hwmon: Add notification support")
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Paolo Bonzini [Tue, 22 Feb 2022 14:07:16 +0000 (09:07 -0500)]
Merge branch 'kvm-ppc-cap-210' into kvm-master
By request of Nick Piggin:
> Patch 3 requires a KVM_CAP_PPC number allocated. QEMU maintainers are
> happy with it (link in changelog) just waiting on KVM upstreaming. Do
> you have objections to the series going to ppc/kvm tree first, or
> another option is you could take patch 3 alone first (it's relatively
> independent of the other 2) and ppc/kvm gets it from you?
Nicholas Piggin [Tue, 22 Feb 2022 14:06:54 +0000 (09:06 -0500)]
KVM: PPC: reserve capability 210 for KVM_CAP_PPC_AIL_MODE_3
Add KVM_CAP_PPC_AIL_MODE_3 to advertise the capability to set the AIL
resource mode to 3 with the H_SET_MODE hypercall. This capability
differs between processor types and KVM types (PR, HV, Nested HV), and
affects guest-visible behaviour.
QEMU will implement a cap-ail-mode-3 to control this behaviour[1], and
use the KVM CAP if available to determine KVM support[2].
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Stefano Garzarella [Fri, 11 Feb 2022 09:01:36 +0000 (10:01 +0100)]
block: clear iocb->private in blkdev_bio_end_io_async()
iocb_bio_iopoll() expects iocb->private to be cleared before
releasing the bio.
We already do this in blkdev_bio_end_io(), but we forgot in the
recently added blkdev_bio_end_io_async().
Fixes: 54a88eb838d3 ("block: add single bio async direct IO helper")
Cc: asml.silence@gmail.com
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220211090136.44471-1-sgarzare@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Adam Ward [Tue, 22 Feb 2022 00:27:44 +0000 (00:27 +0000)]
regulator: da9121: Remove surplus DA9141 parameters
Remove ramp_delay/enable_time values - subject to OTP, incorrect
Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com>
Link: https://lore.kernel.org/r/a175201b4a7ea323c6a70d77f7f6d2124bfc0bed.1645489455.git.Adam.Ward.opensource@diasemi.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Adam Ward [Tue, 22 Feb 2022 00:27:43 +0000 (00:27 +0000)]
regulator: da9121: Fix DA914x voltage value
Update DA9141/2 max voltage to match spec change
Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com>
Link: https://lore.kernel.org/r/9d1ec5b6db70d27f56d05b8a0139fc0840f03e20.1645489455.git.Adam.Ward.opensource@diasemi.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Adam Ward [Tue, 22 Feb 2022 00:27:42 +0000 (00:27 +0000)]
regulator: da9121: Fix DA914x current values
Update DA9141/2 ranges to correct errors
Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com>
Link: https://lore.kernel.org/r/cd5732c5061ce49dcfbcebb306d12ba1664b4ea6.1645489455.git.Adam.Ward.opensource@diasemi.com
Signed-off-by: Mark Brown <broonie@kernel.org>
David S. Miller [Tue, 22 Feb 2022 11:00:51 +0000 (11:00 +0000)]
Merge git://git./linux/kernel/git/netfilter/nf
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
This is fixing up the use without proper initialization in patch 5/5
-o-
Hi,
The following patchset contains Netfilter fixes for net:
1) Missing #ifdef CONFIG_IP6_NF_IPTABLES in recent xt_socket fix.
2) Fix incorrect flow action array size in nf_tables.
3) Unregister flowtable hooks from netns exit path.
4) Fix missing limit object release, from Florian Westphal.
5) Memleak in nf_tables object update path, also from Florian.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Mårten Lindahl [Wed, 16 Feb 2022 09:41:28 +0000 (10:41 +0100)]
driver core: Free DMA range map when device is released
When unbinding/binding a driver with DMA mapped memory, the DMA map is
not freed before the driver is reloaded. This leads to a memory leak
when the DMA map is overwritten when reprobing the driver.
This can be reproduced with a platform driver having a dma-range:
dummy {
...
#address-cells = <0x2>;
#size-cells = <0x2>;
ranges;
dma-ranges = <...>;
...
};
and then unbinding/binding it:
~# echo soc:dummy >/sys/bus/platform/drivers/<driver>/unbind
DMA map object 0xffffff800b0ae540 still being held by &pdev->dev
~# echo soc:dummy >/sys/bus/platform/drivers/<driver>/bind
~# echo scan > /sys/kernel/debug/kmemleak
~# cat /sys/kernel/debug/kmemleak
unreferenced object 0xffffff800b0ae540 (size 64):
comm "sh", pid 833, jiffies
4295174550 (age 2535.352s)
hex dump (first 32 bytes):
00 00 00 80 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 80 00 00 00 00 00 00 00 80 00 00 00 00 ................
backtrace:
[<
ffffffefd1694708>] create_object.isra.0+0x108/0x344
[<
ffffffefd1d1a850>] kmemleak_alloc+0x8c/0xd0
[<
ffffffefd167e2d0>] __kmalloc+0x440/0x6f0
[<
ffffffefd1a960a4>] of_dma_get_range+0x124/0x220
[<
ffffffefd1a8ce90>] of_dma_configure_id+0x40/0x2d0
[<
ffffffefd198b68c>] platform_dma_configure+0x5c/0xa4
[<
ffffffefd198846c>] really_probe+0x8c/0x514
[<
ffffffefd1988990>] __driver_probe_device+0x9c/0x19c
[<
ffffffefd1988cd8>] device_driver_attach+0x54/0xbc
[<
ffffffefd1986634>] bind_store+0xc4/0x120
[<
ffffffefd19856e0>] drv_attr_store+0x30/0x44
[<
ffffffefd173c9b0>] sysfs_kf_write+0x50/0x60
[<
ffffffefd173c1c4>] kernfs_fop_write_iter+0x124/0x1b4
[<
ffffffefd16a013c>] new_sync_write+0xdc/0x160
[<
ffffffefd16a256c>] vfs_write+0x23c/0x2a0
[<
ffffffefd16a2758>] ksys_write+0x64/0xec
To prevent this we should free the dma_range_map when the device is
released.
Fixes: e0d072782c73 ("dma-mapping: introduce DMA range map, supplanting dma_pfn_offset")
Cc: stable <stable@vger.kernel.org>
Suggested-by: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mårten Lindahl <marten.lindahl@axis.com>
Link: https://lore.kernel.org/r/20220216094128.4025861-1-marten.lindahl@axis.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Florian Westphal [Mon, 21 Feb 2022 12:31:49 +0000 (13:31 +0100)]
netfilter: nf_tables: fix memory leak during stateful obj update
stateful objects can be updated from the control plane.
The transaction logic allocates a temporary object for this purpose.
The ->init function was called for this object, so plain kfree() leaks
resources. We must call ->destroy function of the object.
nft_obj_destroy does this, but it also decrements the module refcount,
but the update path doesn't increment it.
To avoid special-casing the update object release, do module_get for
the update case too and release it via nft_obj_destroy().
Fixes: d62d0ba97b58 ("netfilter: nf_tables: Introduce stateful object update operation")
Cc: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Sergey Shtylyov [Sat, 19 Feb 2022 20:04:29 +0000 (23:04 +0300)]
ata: pata_hpt37x: fix PCI clock detection
The f_CNT register (at the PCI config. address 0x78) is 16-bit, not
8-bit! The bug was there from the very start... :-(
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Fixes: 669a5db411d8 ("[libata] Add a bunch of PATA drivers.")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Michel Dänzer [Tue, 15 Feb 2022 18:53:37 +0000 (19:53 +0100)]
drm/amd/display: For vblank_disable_immediate, check PSR is really used
Even if PSR is allowed for a present GPU, there might be no eDP link
which supports PSR.
Fixes: 708978487304 ("drm/amdgpu/display: Only set vblank_disable_immediate when PSR is not enabled")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Evan Quan [Thu, 20 Jan 2022 11:16:19 +0000 (19:16 +0800)]
drm/amd/pm: fix some OEM SKU specific stability issues
Add a quirk in sienna_cichlid_ppt.c to fix some OEM SKU
specific stability issues.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Evan Quan [Thu, 20 Jan 2022 08:15:52 +0000 (16:15 +0800)]
drm/amdgpu: disable MMHUB PG for Picasso
MMHUB PG needs to be disabled for Picasso for stability reasons.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Bas Nieuwenhuizen [Sat, 12 Feb 2022 15:40:00 +0000 (16:40 +0100)]
drm/amd/display: Protect update_bw_bounding_box FPU code.
For DCN3/3.01/3.02 at least these use the fpu.
v2: squash in build fix for when DCN is not enabled (Leo)
Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Phil Elwell [Wed, 16 Feb 2022 16:08:02 +0000 (16:08 +0000)]
sc16is7xx: Fix for incorrect data being transmitted
UART drivers are meant to use the port spinlock within certain
methods, to protect against reentrancy. The sc16is7xx driver does
very little locking, presumably because when added it triggers
"scheduling while atomic" errors. This is due to the use of mutexes
within the regmap abstraction layer, and the mutex implementation's
habit of sleeping the current thread while waiting for access.
Unfortunately this lack of interlocking can lead to corruption of
outbound data, which occurs when the buffer used for I2C transmission
is used simultaneously by two threads - a work queue thread running
sc16is7xx_tx_proc, and an IRQ thread in sc16is7xx_port_irq, both
of which can call sc16is7xx_handle_tx.
An earlier patch added efr_lock, a mutex that controls access to the
EFR register. This mutex is already claimed in the IRQ handler, and
all that is required is to claim the same mutex in sc16is7xx_tx_proc.
See: https://github.com/raspberrypi/linux/issues/4885
Fixes: 6393ff1c4435 ("sc16is7xx: Use threaded IRQ")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Link: https://lore.kernel.org/r/20220216160802.1026013-1-phil@raspberrypi.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
daniel.starke@siemens.com [Fri, 18 Feb 2022 07:31:23 +0000 (23:31 -0800)]
tty: n_gsm: fix deadlock in gsmtty_open()
In the current implementation the user may open a virtual tty which then
could fail to establish the underlying DLCI. The function gsmtty_open()
gets stuck in tty_port_block_til_ready() while waiting for a carrier rise.
This happens if the remote side fails to acknowledge the link establishment
request in time or completely. At some point gsm_dlci_close() is called
to abort the link establishment attempt. The function tries to inform the
associated virtual tty by performing a hangup. But the blocking loop within
tty_port_block_til_ready() is not informed about this event.
The patch proposed here fixes this by resetting the initialization state of
the virtual tty to ensure the loop exits and triggering it to make
tty_port_block_til_ready() return.
Fixes: e1eaea46bb40 ("tty: n_gsm line discipline")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220218073123.2121-7-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
daniel.starke@siemens.com [Fri, 18 Feb 2022 07:31:22 +0000 (23:31 -0800)]
tty: n_gsm: fix wrong modem processing in convergence layer type 2
The function gsm_process_modem() exists to handle modem status bits of
incoming frames. This includes incoming MSC (modem status command) frames
and convergence layer type 2 data frames. The function, however, was only
designed to handle MSC frames as it expects the command length. Within
gsm_dlci_data() it is wrongly assumed that this is the same as the data
frame length. This is only true if the data frame contains only 1 byte of
payload.
This patch names the length parameter of gsm_process_modem() in a generic
manner to reflect its association. It also corrects all calls to the
function to handle the variable number of modem status octets correctly in
both cases.
Fixes: 7263287af93d ("tty: n_gsm: Fixed logic to decode break signal from modem status")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220218073123.2121-6-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
daniel.starke@siemens.com [Fri, 18 Feb 2022 07:31:21 +0000 (23:31 -0800)]
tty: n_gsm: fix wrong tty control line for flow control
tty flow control is handled via gsmtty_throttle() and gsmtty_unthrottle().
Both functions propagate the outgoing hardware flow control state to the
remote side via MSC (modem status command) frames. The local state is taken
from the RTS (ready to send) flag of the tty. However, RTS gets mapped to
DTR (data terminal ready), which is wrong.
This patch corrects this by mapping RTS to RTS.
Fixes: e1eaea46bb40 ("tty: n_gsm line discipline")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220218073123.2121-5-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
daniel.starke@siemens.com [Fri, 18 Feb 2022 07:31:20 +0000 (23:31 -0800)]
tty: n_gsm: fix NULL pointer access due to DLCI release
The here fixed commit made the tty hangup asynchronous to avoid a circular
locking warning. I could not reproduce this warning. Furthermore, due to
the asynchronous hangup the function call now gets queued up while the
underlying tty is being freed. Depending on the timing this results in a
NULL pointer access in the global work queue scheduler. To be precise in
process_one_work(). Therefore, the previous commit made the issue worse
which it tried to fix.
This patch fixes this by falling back to the old behavior which uses a
blocking tty hangup call before freeing up the associated tty.
Fixes: 7030082a7415 ("tty: n_gsm: avoid recursive locking with async port hangup")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220218073123.2121-4-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
daniel.starke@siemens.com [Fri, 18 Feb 2022 07:31:19 +0000 (23:31 -0800)]
tty: n_gsm: fix proper link termination after failed open
Trying to open a DLCI by sending a SABM frame may fail with a timeout.
The link is closed on the initiator side without informing the responder
about this event. The responder assumes the link is open after sending a
UA frame to answer the SABM frame. The link gets stuck in a half open
state.
This patch fixes this by initiating the proper link termination procedure
after link setup timeout instead of silently closing it down.
Fixes: e1eaea46bb40 ("tty: n_gsm line discipline")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220218073123.2121-3-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
daniel.starke@siemens.com [Fri, 18 Feb 2022 07:31:18 +0000 (23:31 -0800)]
tty: n_gsm: fix encoding of command/response bit
n_gsm is based on the 3GPP 07.010 and its newer version is the 3GPP 27.010.
See https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1516
The changes from 07.010 to 27.010 are non-functional. Therefore, I refer to
the newer 27.010 here. Chapter 5.2.1.2 describes the encoding of the
C/R (command/response) bit. Table 1 shows that the actual encoding of the
C/R bit is inverted if the associated frame is sent by the responder.
The referenced commit fixed here further broke the internal meaning of this
bit in the outgoing path by always setting the C/R bit regardless of the
frame type.
This patch fixes both by setting the C/R bit always consistently for
command (1) and response (0) frames and inverting it later for the
responder where necessary. The meaning of this bit in the debug output
is being preserved and shows the bit as if it was encoded by the initiator.
This reflects only the frame type rather than the encoded combination of
communication side and frame type.
Fixes: cc0f42122a7e ("tty: n_gsm: Modify CR,PF bit when config requester")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220218073123.2121-2-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
daniel.starke@siemens.com [Fri, 18 Feb 2022 07:31:17 +0000 (23:31 -0800)]
tty: n_gsm: fix encoding of control signal octet bit DV
n_gsm is based on the 3GPP 07.010 and its newer version is the 3GPP 27.010.
See https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1516
The changes from 07.010 to 27.010 are non-functional. Therefore, I refer to
the newer 27.010 here. Chapter 5.4.6.3.7 describes the encoding of the
control signal octet used by the MSC (modem status command). The same
encoding is also used in convergence layer type 2 as described in chapter
5.5.2. Table 7 and 24 both require the DV (data valid) bit to be set 1 for
outgoing control signal octets sent by the DTE (data terminal equipment),
i.e. for the initiator side.
Currently, the DV bit is only set if CD (carrier detect) is on, regardless
of the side.
This patch fixes this behavior by setting the DV bit on the initiator side
unconditionally.
Fixes: e1eaea46bb40 ("tty: n_gsm line discipline")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220218073123.2121-1-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Mon, 21 Feb 2022 17:10:53 +0000 (09:10 -0800)]
Merge tag 'platform-drivers-x86-v5.17-3' of git://git./linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
"Two small fixes and one hardware-id addition"
* tag 'platform-drivers-x86-v5.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: int3472: Add terminator to gpiod_lookup_table
platform/x86: asus-wmi: Fix regression when probing for fan curve control
platform/x86: thinkpad_acpi: Add dual-fan quirk for T15g (2nd gen)
Christophe Kerello [Sun, 20 Feb 2022 15:14:32 +0000 (15:14 +0000)]
mtd: core: Fix a conflict between MTD and NVMEM on wp-gpios property
Wp-gpios property can be used on NVMEM nodes and the same property can
be also used on MTD NAND nodes. In case of the wp-gpios property is
defined at NAND level node, the GPIO management is done at NAND driver
level. Write protect is disabled when the driver is probed or resumed
and is enabled when the driver is released or suspended.
When no partitions are defined in the NAND DT node, then the NAND DT node
will be passed to NVMEM framework. If wp-gpios property is defined in
this node, the GPIO resource is taken twice and the NAND controller
driver fails to probe.
A new Boolean flag named ignore_wp has been added in nvmem_config.
In case ignore_wp is set, it means that the GPIO is handled by the
provider. Lets set this flag in MTD layer to avoid the conflict on
wp_gpios property.
Fixes: 2a127da461a9 ("nvmem: add support for the write-protect pin")
Cc: stable@vger.kernel.org
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151432.16605-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Christophe Kerello [Sun, 20 Feb 2022 15:14:31 +0000 (15:14 +0000)]
nvmem: core: Fix a conflict between MTD and NVMEM on wp-gpios property
Wp-gpios property can be used on NVMEM nodes and the same property can
be also used on MTD NAND nodes. In case of the wp-gpios property is
defined at NAND level node, the GPIO management is done at NAND driver
level. Write protect is disabled when the driver is probed or resumed
and is enabled when the driver is released or suspended.
When no partitions are defined in the NAND DT node, then the NAND DT node
will be passed to NVMEM framework. If wp-gpios property is defined in
this node, the GPIO resource is taken twice and the NAND controller
driver fails to probe.
It would be possible to set config->wp_gpio at MTD level before calling
nvmem_register function but NVMEM framework will toggle this GPIO on
each write when this GPIO should only be controlled at NAND level driver
to ensure that the Write Protect has not been enabled.
A way to fix this conflict is to add a new boolean flag in nvmem_config
named ignore_wp. In case ignore_wp is set, the GPIO resource will
be managed by the provider.
Fixes: 2a127da461a9 ("nvmem: add support for the write-protect pin")
Cc: stable@vger.kernel.org
Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151432.16605-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Mon, 21 Feb 2022 16:58:09 +0000 (17:58 +0100)]
Merge tag 'iio-fixes-for-5.17a' of https://git./linux/kernel/git/jic23/iio into char-misc-linus
Jonathan writes:
1st set of IIO fixes for the 5.17 cycle.
Several drivers:
- Fix a failure to disable runtime in probe error paths. All cases
were introduced in the same rework patch.
adi,ad7124
- Fix incorrect register masking.
adi,ad74413r
- Avoid referencing negative array offsets.
- Use ngpio size when iterating over mask not numebr of channels.
- Fix issue with wrong mask uage getting GPIOs.
adi,admv1014
- Drop check on unsigned less than 0.
adi,ads16480
- Correctly handle devices that don't have burst mode support.
fsl,fxls8962af
- Add missing padding needed between address and data for SPI transfers.
men_z188
- Fix iomap leak in error path.
st,lsm6dsx
- Wait for setting time in oneshot reads to get a stable result.
ti,tsc2046
- Prevent an array overflow.
* tag 'iio-fixes-for-5.17a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
iio: imu: st_lsm6dsx: wait for settling time in st_lsm6dsx_read_oneshot
iio: Fix error handling for PM
iio: addac: ad74413r: correct comparator gpio getters mask usage
iio: addac: ad74413r: use ngpio size when iterating over mask
iio: addac: ad74413r: Do not reference negative array offsets
iio: adc: men_z188_adc: Fix a resource leak in an error handling path
iio: frequency: admv1013: remove the always true condition
iio: accel: fxls8962af: add padding to regmap for SPI
iio:imu:adis16480: fix buffering for devices with no burst mode
iio: adc: ad7124: fix mask used for setting AIN_BUFP & AIN_BUFM bits
iio: adc: tsc2046: fix memory corruption by preventing array overflow
Max Kellermann [Mon, 21 Feb 2022 10:03:13 +0000 (11:03 +0100)]
lib/iov_iter: initialize "flags" in new pipe_buffer
The functions copy_page_to_iter_pipe() and push_pipe() can both
allocate a new pipe_buffer, but the "flags" member initializer is
missing.
Fixes: 241699cd72a8 ("new iov_iter flavour: pipe-backed")
To: Alexander Viro <viro@zeniv.linux.org.uk>
To: linux-fsdevel@vger.kernel.org
To: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Florian Westphal [Fri, 18 Feb 2022 12:17:05 +0000 (13:17 +0100)]
netfilter: nft_limit: fix stateful object memory leak
We need to provide a destroy callback to release the extra fields.
Fixes: 3b9e2ea6c11b ("netfilter: nft_limit: move stateful fields out of expression data")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Pablo Neira Ayuso [Fri, 18 Feb 2022 11:45:32 +0000 (12:45 +0100)]
netfilter: nf_tables: unregister flowtable hooks on netns exit
Unregister flowtable hooks before they are releases via
nf_tables_flowtable_destroy() otherwise hook core reports UAF.
BUG: KASAN: use-after-free in nf_hook_entries_grow+0x5a7/0x700 net/netfilter/core.c:142 net/netfilter/core.c:142
Read of size 4 at addr
ffff8880736f7438 by task syz-executor579/3666
CPU: 0 PID: 3666 Comm: syz-executor579 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
__dump_stack lib/dump_stack.c:88 [inline] lib/dump_stack.c:106
dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106 lib/dump_stack.c:106
print_address_description+0x65/0x380 mm/kasan/report.c:247 mm/kasan/report.c:247
__kasan_report mm/kasan/report.c:433 [inline]
__kasan_report mm/kasan/report.c:433 [inline] mm/kasan/report.c:450
kasan_report+0x19a/0x1f0 mm/kasan/report.c:450 mm/kasan/report.c:450
nf_hook_entries_grow+0x5a7/0x700 net/netfilter/core.c:142 net/netfilter/core.c:142
__nf_register_net_hook+0x27e/0x8d0 net/netfilter/core.c:429 net/netfilter/core.c:429
nf_register_net_hook+0xaa/0x180 net/netfilter/core.c:571 net/netfilter/core.c:571
nft_register_flowtable_net_hooks+0x3c5/0x730 net/netfilter/nf_tables_api.c:7232 net/netfilter/nf_tables_api.c:7232
nf_tables_newflowtable+0x2022/0x2cf0 net/netfilter/nf_tables_api.c:7430 net/netfilter/nf_tables_api.c:7430
nfnetlink_rcv_batch net/netfilter/nfnetlink.c:513 [inline]
nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:634 [inline]
nfnetlink_rcv_batch net/netfilter/nfnetlink.c:513 [inline] net/netfilter/nfnetlink.c:652
nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:634 [inline] net/netfilter/nfnetlink.c:652
nfnetlink_rcv+0x10e6/0x2550 net/netfilter/nfnetlink.c:652 net/netfilter/nfnetlink.c:652
__nft_release_hook() calls nft_unregister_flowtable_net_hooks() which
only unregisters the hooks, then after RCU grace period, it is
guaranteed that no packets add new entries to the flowtable (no flow
offload rules and flowtable hooks are reachable from packet path), so it
is safe to call nf_flow_table_free() which cleans up the remaining
entries from the flowtable (both software and hardware) and it unbinds
the flow_block.
Fixes: ff4bf2f42a40 ("netfilter: nf_tables: add nft_unregister_flowtable_hook()")
Reported-by: syzbot+e918523f77e62790d6d9@syzkaller.appspotmail.com
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Daniel Scally [Wed, 16 Feb 2022 22:53:02 +0000 (22:53 +0000)]
platform/x86: int3472: Add terminator to gpiod_lookup_table
Without the terminator, if a con_id is passed to gpio_find() that
does not exist in the lookup table the function will not stop looping
correctly, and eventually cause an oops.
Fixes: 19d8d6e36b4b ("platform/x86: int3472: Pass tps68470_regulator_platform_data to the tps68470-regulator MFD-cell")
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Link: https://lore.kernel.org/r/20220216225304.53911-5-djrscally@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Baruch Siach [Mon, 21 Feb 2022 11:45:57 +0000 (13:45 +0200)]
net: mdio-ipq4019: add delay after clock enable
Experimentation shows that PHY detect might fail when the code attempts
MDIO bus read immediately after clock enable. Add delay to stabilize the
clock before bus access.
PHY detect failure started to show after commit
7590fc6f80ac ("net:
mdio: Demote probed message to debug print") that removed coincidental
delay between clock enable and bus access.
10ms is meant to match the time it take to send the probed message over
UART at 115200 bps. This might be a far overshoot.
Fixes: 23a890d493e3 ("net: mdio: Add the reset function for IPQ MDIO driver")
Signed-off-by: Baruch Siach <baruch.siach@siklu.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jens Axboe [Mon, 21 Feb 2022 12:49:30 +0000 (05:49 -0700)]
io_uring: don't convert to jiffies for waiting on timeouts
If an application calls io_uring_enter(2) with a timespec passed in,
convert that timespec to ktime_t rather than jiffies. The latter does
not provide the granularity the application may expect, and may in
fact provided different granularity on different systems, depending
on what the HZ value is configured at.
Turn the timespec into an absolute ktime_t, and use that with
schedule_hrtimeout() instead.
Link: https://github.com/axboe/liburing/issues/531
Cc: stable@vger.kernel.org
Reported-by: Bob Chen <chenbo.chen@alibaba-inc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>