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atmtcp_remove_persistent() invokes atm_dev_lookup(), which returns a
reference of atm_dev with increased refcount or NULL if fails.
The refcount leaks issues occur in two error handling paths. If
dev_data->persist is zero or PRIV(dev)->vcc isn't NULL, the function
returns 0 without decreasing the refcount kept by a local variable,
resulting in refcount leaks.
Fix the issue by adding atm_dev_put() before returning 0 both when
dev_data->persist is zero or PRIV(dev)->vcc isn't NULL.
Signed-off-by: Xin Xiong <xiongx18@fudan.edu.cn>
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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in recent kernel versions there are warnings about incorrect MTU size
like these:
eth0: mtu greater than device maximum
mtk_soc_eth 1b100000.ethernet eth0: error -22 setting MTU to include DSA overhead
Fixes: bfcb813203e6 ("net: dsa: configure the MTU for switch ports")
Fixes: 72579e14a1d3 ("net: dsa: don't fail to probe if we couldn't set the MTU")
Fixes: 7a4c53bee332 ("net: report invalid mtu value via netlink extack")
Signed-off-by: Landen Chao <landen.chao@mediatek.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If some processes in nixge_probe() fail, free_netdev(dev)
needs to be called to aviod a memory leak.
Fixes: 87ab207981ec ("net: nixge: Separate ctrl and dma resources")
Fixes: abcd3d6fc640 ("net: nixge: Fix error path for obtaining mac address")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Lu Wei <luwei32@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove duplicated include.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With 4.8.7 firmware, adjtime can change delta instead of absolute time,
which greately increases snap accuracy. PPS alignment doesn't have to
be set for every single TOD change. Other minor changes includes:
adding more debug logs, increasing snap accuracy for pre 4.8.7 firmware
and supporting new tcs2bin format.
Signed-off-by: Min Li <min.li.xe@renesas.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Setup an RGB HW pipe as cursor which can be used on
secondary interface.
For SC7180 2 HW pipes are enumerated as cursors
1 - primary interface
2 - secondary interface
Signed-off-by: Kalyan Thota <kalyan_t@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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"The PM core always increments the runtime usage counter
before calling the ->suspend() callback and decrements it
after calling the ->resume() callback"
DPU and DSI are managed as runtime devices. When
suspend is triggered, PM core adds a refcount on all the
devices and calls device suspend, since usage count is
already incremented, runtime suspend was not getting called
and it kept the clocks on which resulted in target not
entering into XO shutdown.
Add changes to force suspend on runtime devices during pm sleep.
Changes in v1:
- Remove unnecessary checks in the function
_dpu_kms_disable_dpu (Rob Clark).
Changes in v2:
- Avoid using suspend_late to reset the usagecount
as suspend_late might not be called during suspend
call failures (Doug).
Changes in v3:
- Use force suspend instead of managing device usage_count
via runtime put and get API's to trigger callbacks (Doug).
Changes in v4:
- Check the return values of pm_runtime_force_suspend and
pm_runtime_force_resume API's and pass appropriately (Doug).
Changes in v5:
- With v4 patch, test cycle has uncovered issues in device resume.
On bubs: cmd tx failures were seen as SW is sending panel off
commands when the dsi resources are turned off.
Upon suspend, DRM driver will issue a NULL composition to the
dpu, followed by turning off all the HW blocks.
v5 changes will serialize the NULL commit and resource unwinding
by handling them under PM prepare and PM complete phases there by
ensuring that clks are on when panel off commands are being
processed.
Changes in v6:
- Use drm_mode_config_helper_suspend/resume() instead of legacy API
drm_atomic_helper_suspend/resume() (Doug).
Trigger runtime callbacks from the suspend/resume call to turn
off the resources.
Changes in v7:
- Add "__maybe_unused" to the functions to avoid compilation
failures. Cleanup unnecessary configs (Doug).
Signed-off-by: Kalyan Thota <kalyan_t@codeaurora.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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Check for errors instead of silently not using icc if the msm driver
probes before the interconnect driver.
Allow ENODATA for ocmem path, as it is optional and this error
is returned when "gfx-mem" path is provided but not "ocmem".
Because msm_gpu_cleanup assumes msm_gpu_init has been called, the icc path
init needs to be after msm_gpu_init for the error path to work.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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These never get set back to 0 when probing fails, so an attempt to probe
again results in broken behavior. Fix the problem by setting thse to zero
before they are used.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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adreno_gpu_init calls pm_runtime_enable, so adreno_gpu_cleanup needs to
call pm_runtime_disable.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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Pull virtio fixes from Michael Tsirkin:
"A couple of last minute bugfixes"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio-mem: Fix build error due to improper use 'select'
virtio_balloon: fix up endian-ness for free cmd id
virtio-balloon: Document byte ordering of poison_val
vhost/scsi: fix up req type endian-ness
firmware: Fix a reference count leak.
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fix from Bjorn Helgaas:
"Disable ASPM on ASM1083/1085 PCIe-to-PCI bridge (Robert Hancock)"
* tag 'pci-v5.8-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI/ASPM: Disable ASPM on ASMedia ASM1083/1085 PCIe-to-PCI bridge
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Use eth_zero_addr() to clear mac address instead of memset().
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Use eth_zero_addr() to clear mac address instead of memset().
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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This converts all the existing DECLARE_TASKLET() (and ...DISABLED)
macros with DECLARE_TASKLET_OLD() in preparation for refactoring the
tasklet callback type. All existing DECLARE_TASKLET() users had a "0"
data argument, it has been removed here as well.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
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There's no reason for the tasklet callback to set an argument since it
always uses a global. Instead, use the global directly, in preparation
for converting the tasklet subsystem to modern callback conventions.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
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Replace memsets of 1 byte with simple assignment.
Issue found with checkpatch.pl
Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Replace memsets of 1 byte with simple assignment.
Issue found with checkpatch.pl
Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Replace memsets of 1 byte with simple assignments.
Issue found with checkpatch.pl
Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Replace memsets of 1 byte with simple assignments.
Issue reported by checkpatch.pl.
Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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With legacy PM hooks, it was the responsibility of a driver to manage PCI
states and also the device's power state. The generic approach is to let
PCI core handle the work.
e100_suspend() calls __e100_shutdown() to perform intermediate tasks.
__e100_shutdown() calls pci_save_state() which is not recommended.
e100_suspend() also calls __e100_power_off() which is calling PCI helper
functions, pci_prepare_to_sleep(), pci_set_power_state(), along with
pci_wake_from_d3(...,false). Hence, the functin call is removed and wol is
disabled as earlier using device_wakeup_disable().
Compile-tested only.
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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We observed two panics involving races with igb_reset_task.
The first panic is caused by this race condition:
kworker reboot -f
igb_reset_task
igb_reinit_locked
igb_down
napi_synchronize
__igb_shutdown
igb_clear_interrupt_scheme
igb_free_q_vectors
igb_free_q_vector
adapter->q_vector[v_idx] = NULL;
napi_disable
Panics trying to access
adapter->q_vector[v_idx].napi_state
The second panic (a divide error) is caused by this race:
kworker reboot -f tx packet
igb_reset_task
__igb_shutdown
rtnl_lock()
...
igb_clear_interrupt_scheme
igb_free_q_vectors
adapter->num_tx_queues = 0
...
rtnl_unlock()
rtnl_lock()
igb_reinit_locked
igb_down
igb_up
netif_tx_start_all_queues
dev_hard_start_xmit
igb_xmit_frame
igb_tx_queue_mapping
Panics on
r_idx % adapter->num_tx_queues
This commit applies to igb_reset_task the same changes that
were applied to ixgbe in commit 2f90b8657ec9 ("ixgbe: this patch
adds support for DCB to the kernel and ixgbe driver"),
commit 8f4c5c9fb87a ("ixgbe: reinit_locked() should be called with
rtnl_lock") and commit 88adce4ea8f9 ("ixgbe: fix possible race in
reset subtask").
Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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After 'commit e086ba2fccda4 ("e1000e: disable s0ix entry and exit flows
for ME systems")',
ThinkPad P14s always failed to disable ULP by ME.
'commit 0c80cdbf3320 ("e1000e: Warn if disabling ULP failed")'
break out of init phy:
error log:
[ 42.364753] e1000e 0000:00:1f.6 enp0s31f6: Failed to disable ULP
[ 42.524626] e1000e 0000:00:1f.6 enp0s31f6: PHY Wakeup cause - Unicast Packet
[ 42.822476] e1000e 0000:00:1f.6 enp0s31f6: Hardware Error
When disable s0ix, E1000_FWSM_ULP_CFG_DONE will never be 1.
If continue to init phy like before, it can work as before.
iperf test result good too.
Fixes: 0c80cdbf3320 ("e1000e: Warn if disabling ULP failed")
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Pull block fixes from Jens Axboe:
"Three NVMe fixes"
* tag 'block-5.8-2020-07-30' of git://git.kernel.dk/linux-block:
nvme: add a Identify Namespace Identification Descriptor list quirk
nvme-pci: prevent SK hynix PC400 from using Write Zeroes command
nvme-tcp: fix possible hang waiting for icresp response
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Because intel_pstate_set_energy_pref_index() reads and writes the
MSR_HWP_REQUEST register without using the cached value of it used by
intel_pstate_hwp_boost_up() and intel_pstate_hwp_boost_down(), those
functions may overwrite the value written by it and so the EPP value
set via sysfs may be lost.
To avoid that, make intel_pstate_set_energy_pref_index() take the
cached value of MSR_HWP_REQUEST just like the other two routines
mentioned above and update it with the new EPP value coming from
user space in addition to updating the MSR.
Note that the MSR itself still needs to be updated too in case
hwp_boost is unset or the boosting mechanism is not active at the
EPP change time.
Fixes: e0efd5be63e8 ("cpufreq: intel_pstate: Add HWP boost utility and sched util hooks")
Reported-by: Francisco Jerez <currojerez@riseup.net>
Cc: 4.18+ <stable@vger.kernel.org> # 4.18+: 3da97d4db8ee cpufreq: intel_pstate: Rearrange ...
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
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Move the locking away from intel_pstate_set_energy_pref_index()
into its only caller and drop the (now redundant) return_pref label
from it.
Also move the "raw" EPP value check into the caller of that function,
so as to do it before acquiring the mutex, and reduce code duplication
related to the "raw" EPP values processing somewhat.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
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With legacy PM, drivers themselves were responsible for managing the
device's power states and takes care of register states.
After upgrading to the generic structure, PCI core will take care of
required tasks and drivers should do only device-specific operations.
The driver was invoking PCI helper functions like pci_save/restore_state(),
and pci_enable/disable_device(), which is not recommended.
Compile-tested only.
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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With legacy PM hooks, it was the responsibility of a driver to manage PCI
states and also the device's power state. The generic approach is to let
PCI core handle the work.
ixgbe_suspend() calls __ixgbe_shutdown() to perform intermediate tasks.
__ixgbe_shutdown() modifies the value of "wake" (device should be wakeup
enabled or not), responsible for controlling the flow of legacy PM.
Since, PCI core has no idea about the value of "wake", new code for generic
PM may produce unexpected results. Thus, use "device_set_wakeup_enable()"
to wakeup-enable the device accordingly.
Compile-tested only.
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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On ICX platform, the C1E auto-promotion is enabled by default.
As a result, the CPU might fall into C1E more offen than previous
platforms. Besides, the C1E is not exposed to sysfs on ICX, which
is inconsistent with previous server platforms.
So disable C1E auto-promotion and expose C1E as a separate idle
state, so the C1E and C6 can be disabled via sysfs when necessary.
Beside C1 and C1E, the exit latency of C6 was measured
by a dedicated tool. However the exit latency(41us) exposed
by _CST is much smaller than the one we measured(128us). This
is probably due to the _CST uses the exit latency when woken
up from PC0+C6, rather than PC6+C6 when C6 was measured. Choose
the latter as we need the longest latency in theory.
Reported-by: kernel test robot <lkp@intel.com>
Tested-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Acked-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Remove legacy PM callbacks and use generic operations. With legacy code,
drivers were responsible for handling PCI PM operations like
pci_save_state(). In generic code, all these are handled by PCI core.
The generic suspend() and resume() are called at the same point the legacy
ones were called. Thus, it does not affect the normal functioning of the
driver.
__maybe_unused attribute is used with .resume() but not with .suspend(), as
.suspend() is called by .shutdown().
Compile-tested only.
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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With the support of generic PM callbacks, drivers no longer need to use
legacy .suspend() and .resume() in which they had to maintain PCI states
changes and device's power state themselves. The required operations are
done by PCI core.
PCI drivers are not expected to invoke PCI helper functions like
pci_save/restore_state(), pci_enable/disable_device(),
pci_set_power_state(), etc. Their tasks are completed by PCI core itself.
Compile-tested only.
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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As noted in:
https://www.kernel.org/doc/Documentation/kbuild/kconfig-language.txt
"select should be used with care. select will force a symbol to a
value without visiting the dependencies."
Config VIRTIO_MEM should not select CONTIG_ALLOC directly.
Otherwise it will cause an error:
https://bugzilla.kernel.org/show_bug.cgi?id=208245
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Link: https://lore.kernel.org/r/20200619080333.194753-1-chenweilong@huawei.com
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull operating performance points (OPP) framework updates for v5.9
from Viresh Kumar:
"This contains following changes:
- Fix HTTP links (Alexander A. Klimov).
- Allow disabled OPPs in dev_pm_opp_get_freq() (Andrew-sh.Cheng).
- Add missing export (Valdis Kletnieks)."
* 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
opp: Allow disabled OPPs in dev_pm_opp_get_freq()
opp: ti-opp-supply: Replace HTTP links with HTTPS ones
opp: core: Add missing export for dev_pm_opp_adjust_voltage
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This regressed some working configurations so revert it. Will
fix this properly for 5.9 and backport then.
This reverts commit 38e0c89a19fd13f28d2b4721035160a3e66e270b.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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This patch fixes a race condition that causes a use-after-free during
amdgpu_dm_atomic_commit_tail. This can occur when 2 non-blocking commits
are requested and the second one finishes before the first. Essentially,
this bug occurs when the following sequence of events happens:
1. Non-blocking commit #1 is requested w/ a new dm_state #1 and is
deferred to the workqueue.
2. Non-blocking commit #2 is requested w/ a new dm_state #2 and is
deferred to the workqueue.
3. Commit #2 starts before commit #1, dm_state #1 is used in the
commit_tail and commit #2 completes, freeing dm_state #1.
4. Commit #1 starts after commit #2 completes, uses the freed dm_state
1 and dereferences a freelist pointer while setting the context.
Since this bug has only been spotted with fast commits, this patch fixes
the bug by clearing the dm_state instead of using the old dc_state for
fast updates. In addition, since dm_state is only used for its dc_state
and amdgpu_dm_atomic_commit_tail will retain the dc_state if none is found,
removing the dm_state should not have any consequences in fast updates.
This use-after-free bug has existed for a while now, but only caused a
noticeable issue starting from 5.7-rc1 due to 3202fa62f ("slub: relocate
freelist pointer to middle of object") moving the freelist pointer from
dm_state->base (which was unused) to dm_state->context (which is
dereferenced).
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=207383
Fixes: bd200d190f45 ("drm/amd/display: Don't replace the dc_state for fast updates")
Reported-by: Duncan <1i5t5.duncan@cox.net>
Signed-off-by: Mazin Rezk <mnrzk@protonmail.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Compiler leaves a 4-byte hole near the end of `dev_info`, causing
amdgpu_info_ioctl() to copy uninitialized kernel stack memory to userspace
when `size` is greater than 356.
In 2015 we tried to fix this issue by doing `= {};` on `dev_info`, which
unfortunately does not initialize that 4-byte hole. Fix it by using
memset() instead.
Cc: stable@vger.kernel.org
Fixes: c193fa91b918 ("drm/amdgpu: information leak in amdgpu_info_ioctl()")
Fixes: d38ceaf99ed0 ("drm/amdgpu: add core driver (v4)")
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Peilin Ye <yepeilin.cs@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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The memory allocated for the DIM wasn't freed in in error unwind path, fix
it by calling to rdma_dim_destroy().
Fixes: da6629793aa6 ("RDMA/core: Provide RDMA DIM support for ULPs")
Link: https://lore.kernel.org/r/20200730082719.1582397-4-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com <mailto:maxg@mellanox.com>>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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HW destroy operation should be last operation after all possible CQ users
completed their work, so move DIM work cancellation before such destroy
call.
Fixes: da6629793aa6 ("RDMA/core: Provide RDMA DIM support for ULPs")
Link: https://lore.kernel.org/r/20200730082719.1582397-3-leon@kernel.org
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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In DCT and RSS RAW QP creation flows, the QP mutex wasn't initialized and
the magic field inside lock was missing. This caused to the following
kernel warning for kernels build with CONFIG_DEBUG_MUTEXES.
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 3 PID: 16261 at kernel/locking/mutex.c:938 __mutex_lock+0x60e/0x940
Modules linked in: bonding nf_tables ipip tunnel4 geneve ip6_udp_tunnel udp_tunnel ip6_gre ip6_tunnel tunnel6 ip_gre gre ip_tunnel mlx5_ib mlx5_core mlxfw ptp pps_core rdma_ucm ib_uverbs ib_ipoib ib_umad openvswitch nsh xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat xt_addrtype xt_conntrack nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter overlay ib_srp scsi_transport_srp rpcrdma ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_cm ib_core [last unloaded: mlxfw]
CPU: 3 PID: 16261 Comm: ib_send_bw Not tainted 5.8.0-rc4_for_upstream_min_debug_2020_07_08_22_04 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
RIP: 0010:__mutex_lock+0x60e/0x940
Code: c0 0f 84 6d fa ff ff 44 8b 15 4e 9d ba 00 45 85 d2 0f 85 5d fa ff ff 48 c7 c6 f2 de 2b 82 48 c7 c7 f1 8a 2b 82 e8 d2 4d 72 ff <0f> 0b 4c 8b 4d 88 e9 3f fa ff ff f6 c2 04 0f 84 37 fe ff ff 48 89
RSP: 0018:ffff88810bb8b870 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88829f1dd880 RSI: 0000000000000000 RDI: ffffffff81192afa
RBP: ffff88810bb8b910 R08: 0000000000000000 R09: 0000000000000028
R10: 0000000000000000 R11: 0000000000003f85 R12: 0000000000000002
R13: ffff88827d8d3ce0 R14: ffffffffa059f615 R15: ffff8882a4d02610
FS: 00007f3f6988e740(0000) GS:ffff8882f5b80000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556556158000 CR3: 000000010a63c005 CR4: 0000000000360ea0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
? cmd_exec+0x947/0xe60 [mlx5_core]
? __mutex_lock+0x76/0x940
? mlx5_ib_qp_set_counter+0x25/0xa0 [mlx5_ib]
mlx5_ib_qp_set_counter+0x25/0xa0 [mlx5_ib]
mlx5_ib_counter_bind_qp+0x9b/0xe0 [mlx5_ib]
__rdma_counter_bind_qp+0x6b/0xa0 [ib_core]
rdma_counter_bind_qp_auto+0x363/0x520 [ib_core]
_ib_modify_qp+0x316/0x580 [ib_core]
ib_modify_qp_with_udata+0x19/0x30 [ib_core]
modify_qp+0x4c4/0x600 [ib_uverbs]
ib_uverbs_ex_modify_qp+0x87/0xe0 [ib_uverbs]
ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x129/0x1c0 [ib_uverbs]
ib_uverbs_cmd_verbs.isra.5+0x5d5/0x11f0 [ib_uverbs]
? ib_uverbs_handler_UVERBS_METHOD_QUERY_CONTEXT+0x120/0x120 [ib_uverbs]
? lock_acquire+0xb9/0x3a0
? ib_uverbs_ioctl+0xd0/0x210 [ib_uverbs]
? ib_uverbs_ioctl+0x175/0x210 [ib_uverbs]
ib_uverbs_ioctl+0x14b/0x210 [ib_uverbs]
? ib_uverbs_ioctl+0xd0/0x210 [ib_uverbs]
ksys_ioctl+0x234/0x7d0
? exc_page_fault+0x202/0x640
? do_syscall_64+0x1f/0x2e0
__x64_sys_ioctl+0x16/0x20
do_syscall_64+0x59/0x2e0
? asm_exc_page_fault+0x8/0x30
? rcu_read_lock_sched_held+0x52/0x60
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes: b4aaa1f0b415 ("IB/mlx5: Handle type IB_QPT_DRIVER when creating a QP")
Link: https://lore.kernel.org/r/20200730082719.1582397-2-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Loongson PCH PIC is a standard level triggered PIC, and it need to clear
interrupt during unmask.
Fixes: ef8c01eb64ca6719da449dab0 ("irqchip: Add Loongson PCH PIC controller")
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Link: https://lore.kernel.org/r/1596099090-23516-6-git-send-email-chenhc@lemote.com
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The original version can only used by old Loongson-3 which only use 4
groups of HT vectors. Now Loongson-3A R4 can use 8 groups, so improve
the driver to support all 8 groups.
Fixes: 818e915fbac518e8c78e1877a ("irqchip: Add Loongson HyperTransport Vector support")
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Link: https://lore.kernel.org/r/1596099090-23516-5-git-send-email-chenhc@lemote.com
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In gc->mask_cache bits, 1 means enabled and 0 means disabled, but in the
loongson-liointc driver mask_cache is misused by reverting its meaning.
This patch fix the bug and update the comments as well.
Fixes: dbb152267908c4b2c3639492a ("irqchip: Add driver for Loongson I/O Local Interrupt Controller")
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1596099090-23516-4-git-send-email-chenhc@lemote.com
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This reverts commit 7ecacafc240638148567742cca41aa7144b4fe1e.
Testing this change on a board with RTL8822CE, I found that enabling
autosuspend has no effect on the stability of the system. The board
continued working after autosuspend, suspend and reboot.
The original commit makes it impossible to enable autosuspend on working
systems so it should be reverted. Disabling autosuspend should be done
via module param or udev in userspace instead.
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Acked-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Fix the wrong grammar at the end of code line by using semicolon.
Cc: stable vger.kernel.org
Fixes: 490a421bc575 ("PM / devfreq: Add debugfs support with devfreq_summary file")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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The commit 66d0e797bf09 ("Revert "PM / devfreq: Modify the device name
as devfreq(X) for sysfs"") roll back the device name from 'devfreqX'
to device name explained in DT. After applied commit 66d0e797bf09,
the indentation of devfreq_summary debugfs node was broken.
So, fix indentaion of devfreq_summary debugfs node as following:
For example on Exynos5422-based Odroid-XU3 board,
$ cat /sys/kernel/debug/devfreq/devfreq_summary
dev parent_dev governor polling_ms cur_freq_Hz min_freq_Hz max_freq_Hz
------------------------------ ------------------------------ --------------- ---------- ------------ ------------ ------------
10c20000.memory-controller null simple_ondemand 0 413000000 165000000 825000000
soc:bus_wcore null simple_ondemand 50 88700000 88700000 532000000
soc:bus_noc soc:bus_wcore passive 0 66600000 66600000 111000000
soc:bus_fsys_apb soc:bus_wcore passive 0 111000000 111000000 222000000
soc:bus_fsys soc:bus_wcore passive 0 75000000 75000000 200000000
soc:bus_fsys2 soc:bus_wcore passive 0 75000000 75000000 200000000
soc:bus_mfc soc:bus_wcore passive 0 83250000 83250000 333000000
soc:bus_gen soc:bus_wcore passive 0 88700000 88700000 266000000
soc:bus_peri soc:bus_wcore passive 0 66600000 66600000 66600000
soc:bus_g2d soc:bus_wcore passive 0 83250000 83250000 333000000
soc:bus_g2d_acp soc:bus_wcore passive 0 0 66500000 266000000
soc:bus_jpeg soc:bus_wcore passive 0 0 75000000 300000000
soc:bus_jpeg_apb soc:bus_wcore passive 0 0 83250000 166500000
soc:bus_disp1_fimd soc:bus_wcore passive 0 0 120000000 200000000
soc:bus_disp1 soc:bus_wcore passive 0 0 120000000 300000000
soc:bus_gscl_scaler soc:bus_wcore passive 0 0 150000000 300000000
soc:bus_mscl soc:bus_wcore passive 0 0 84000000 666000000
Cc: stable@vger.kernel.org
Fixes: 66d0e797bf09 ("Revert "PM / devfreq: Modify the device name as devfreq(X) for sysfs"")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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The sysfs attr interface used eithere 'df' or 'devfreq' for devfreq instance
name. In order to keep the consistency and to improve the readabilty,
unify the instance name as 'df'. Add add the missing conditional statement
to prevent the fault.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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The driver can operate in two modes relaying on devfreq monitoring
mechanism which periodically checks the device status or it can use
interrupts when they are provided by loaded Device Tree. The newly
introduced module parameter can be used to choose between devfreq
monitoring and internal interrupts without modifying the Device Tree.
It also sets devfreq monitoring as default when the parameter is not set
(also the case for default when the driver is not built as a module).
Reported-by: Willy Wolff <willy.mh.wolff.ml@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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In order to react faster and make better decisions under some workloads,
benchmarking the memory subsystem behavior, adjust the polling interval
and upthreshold value used by the simple_ondemand governor.
Reported-by: Willy Wolff <willy.mh.wolff.ml@gmail.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Use delayed timer as default instead of deferrable timer
in order to monitor the DMC status regardless of CPU idle.
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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