4058 Commits

Author SHA1 Message Date
Sultan Alsawaf
2ad3b5fcfe cpufreq: arch_topology: Introduce minimum frequency scale
The scheduler is unaware of the applied min_freq limit to a CPU, which is
useful information when predicting the frequency a CPU will run at for
energy efficiency purposes.

Export this information via arch_scale_min_freq_capacity() and wire it up
for arm64.

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
[Tashar02: Backport to msm-5.4]
Signed-off-by: Tashfin Shakeer Rhythm <tashfinshakeerrhythm@gmail.com>
Signed-off-by: Helium-Studio <67852324+Helium-Studio@users.noreply.github.com>
2025-03-08 11:51:49 +02:00
kondors1995
373d5574ec Merge branch 'linux-4.14.y' of https://github.com/openela/kernel-lts into 15.0 2024-10-20 18:10:19 +03:00
Dan Williams
c72f8e96b8 driver core: Fix uevent_show() vs driver detach race
commit 15fffc6a5624b13b428bb1c6e9088e32a55eb82c upstream.

uevent_show() wants to de-reference dev->driver->name. There is no clean
way for a device attribute to de-reference dev->driver unless that
attribute is defined via (struct device_driver).dev_groups. Instead, the
anti-pattern of taking the device_lock() in the attribute handler risks
deadlocks with code paths that remove device attributes while holding
the lock.

This deadlock is typically invisible to lockdep given the device_lock()
is marked lockdep_set_novalidate_class(), but some subsystems allocate a
local lockdep key for @dev->mutex to reveal reports of the form:

 ======================================================
 WARNING: possible circular locking dependency detected
 6.10.0-rc7+ #275 Tainted: G           OE    N
 ------------------------------------------------------
 modprobe/2374 is trying to acquire lock:
 ffff8c2270070de0 (kn->active#6){++++}-{0:0}, at: __kernfs_remove+0xde/0x220

 but task is already holding lock:
 ffff8c22016e88f8 (&cxl_root_key){+.+.}-{3:3}, at: device_release_driver_internal+0x39/0x210

 which lock already depends on the new lock.

 the existing dependency chain (in reverse order) is:

 -> #1 (&cxl_root_key){+.+.}-{3:3}:
        __mutex_lock+0x99/0xc30
        uevent_show+0xac/0x130
        dev_attr_show+0x18/0x40
        sysfs_kf_seq_show+0xac/0xf0
        seq_read_iter+0x110/0x450
        vfs_read+0x25b/0x340
        ksys_read+0x67/0xf0
        do_syscall_64+0x75/0x190
        entry_SYSCALL_64_after_hwframe+0x76/0x7e

 -> #0 (kn->active#6){++++}-{0:0}:
        __lock_acquire+0x121a/0x1fa0
        lock_acquire+0xd6/0x2e0
        kernfs_drain+0x1e9/0x200
        __kernfs_remove+0xde/0x220
        kernfs_remove_by_name_ns+0x5e/0xa0
        device_del+0x168/0x410
        device_unregister+0x13/0x60
        devres_release_all+0xb8/0x110
        device_unbind_cleanup+0xe/0x70
        device_release_driver_internal+0x1c7/0x210
        driver_detach+0x47/0x90
        bus_remove_driver+0x6c/0xf0
        cxl_acpi_exit+0xc/0x11 [cxl_acpi]
        __do_sys_delete_module.isra.0+0x181/0x260
        do_syscall_64+0x75/0x190
        entry_SYSCALL_64_after_hwframe+0x76/0x7e

The observation though is that driver objects are typically much longer
lived than device objects. It is reasonable to perform lockless
de-reference of a @driver pointer even if it is racing detach from a
device. Given the infrequency of driver unregistration, use
synchronize_rcu() in module_remove_driver() to close any potential
races.  It is potentially overkill to suffer synchronize_rcu() just to
handle the rare module removal racing uevent_show() event.

Thanks to Tetsuo Handa for the debug analysis of the syzbot report [1].

Fixes: c0a40097f0bc ("drivers: core: synchronize really_probe() and dev_uevent()")
Reported-by: syzbot+4762dd74e32532cda5ff@syzkaller.appspotmail.com
Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Closes: http://lore.kernel.org/5aa5558f-90a4-4864-b1b1-5d6784c5607d@I-love.SAKURA.ne.jp [1]
Link: http://lore.kernel.org/669073b8ea479_5fffa294c1@dwillia2-xfh.jf.intel.com.notmuch
Cc: stable@vger.kernel.org
Cc: Ashish Sangwan <a.sangwan@samsung.com>
Cc: Namjae Jeon <namjae.jeon@samsung.com>
Cc: Dirk Behme <dirk.behme@de.bosch.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/r/172081332794.577428.9738802016494057132.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 49ea4e0d862632d51667da5e7a9c88a560e9c5a1)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-10-10 10:27:30 +00:00
Zijun Hu
9b6f7f34aa devres: Fix memory leakage caused by driver API devm_free_percpu()
[ Upstream commit bd50a974097bb82d52a458bd3ee39fb723129a0c ]

It will cause memory leakage when use driver API devm_free_percpu()
to free memory allocated by devm_alloc_percpu(), fixed by using
devres_release() instead of devres_destroy() within devm_free_percpu().

Fixes: ff86aae3b4 ("devres: add devm_alloc_percpu()")
Cc: stable@vger.kernel.org
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/1719931914-19035-3-git-send-email-quic_zijuhu@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit 700e8abd65b10792b2f179ce4e858f2ca2880f85)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-10-10 10:27:26 +00:00
Andy Shevchenko
bdec7b3d4c driver core: Cast to (void *) with __force for __percpu pointer
[ Upstream commit d7aa44f5a1f86cb40659eef06035d8d92604b9d5 ]

Sparse is not happy:

  drivers/base/devres.c:1230:9: warning: cast removes address space '__percpu' of expression

Use __force attribute to make it happy.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210401171030.60527-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: bd50a974097b ("devres: Fix memory leakage caused by driver API devm_free_percpu()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit b9c258b2a02ba8d6d004f45a1eafa23fd810746b)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-10-10 10:27:26 +00:00
Lance Richardson
5a9dbd8f70 dma: fix call order in dmam_free_coherent
[ Upstream commit 28e8b7406d3a1f5329a03aa25a43aa28e087cb20 ]

dmam_free_coherent() frees a DMA allocation, which makes the
freed vaddr available for reuse, then calls devres_destroy()
to remove and free the data structure used to track the DMA
allocation. Between the two calls, it is possible for a
concurrent task to make an allocation with the same vaddr
and add it to the devres list.

If this happens, there will be two entries in the devres list
with the same vaddr and devres_destroy() can free the wrong
entry, triggering the WARN_ON() in dmam_match.

Fix by destroying the devres entry before freeing the DMA
allocation.

Tested:
  kokonut //net/encryption
    http://sponge2/b9145fe6-0f72-4325-ac2f-a84d81075b03

Fixes: 9ac7849e35 ("devres: device resource management")
Signed-off-by: Lance Richardson <rlance@google.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit fe2d246080f035e0af5793cb79067ba125e4fb63)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-10-10 10:27:25 +00:00
Thara Gopinath
50178ce55d drivers/base/arch_topology: Add infrastructure to store and update instantaneous thermal pressure
Add architecture specific APIs to update and track thermal pressure on a
per CPU basis. A per CPU variable thermal_pressure is introduced to keep
track of instantaneous per CPU thermal pressure. Thermal pressure is the
delta between maximum capacity and capped capacity due to a thermal event.

topology_get_thermal_pressure can be hooked into the scheduler specified
arch_scale_thermal_pressure to retrieve instantaneous thermal pressure of
a CPU.

arch_set_thermal_pressure can be used to update the thermal pressure.

Considering topology_get_thermal_pressure reads thermal_pressure and
arch_set_thermal_pressure writes into thermal_pressure, one can argue for
some sort of locking mechanism to avoid a stale value.  But considering
topology_get_thermal_pressure can be called from a system critical path
like scheduler tick function, a locking mechanism is not ideal. This means
that it is possible the thermal_pressure value used to calculate average
thermal pressure for a CPU can be stale for up to 1 tick period.

Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200222005213.3873-4-thara.gopinath@linaro.org
Signed-off-by: Divyanshu-Modi <divyan.m05@gmail.com>
Signed-off-by: Helium-Studio <67852324+Helium-Studio@users.noreply.github.com>
2024-08-12 21:00:35 +03:00
kondors1995
ebe2649ab6 Merge remote-tracking branch 'openela/linux-4.14.y' into 14.0-matrix 2024-08-11 18:42:43 +03:00
Dirk Behme
82d942edbd drivers: core: synchronize really_probe() and dev_uevent()
commit c0a40097f0bc81deafc15f9195d1fb54595cd6d0 upstream.

Synchronize the dev->driver usage in really_probe() and dev_uevent().
These can run in different threads, what can result in the following
race condition for dev->driver uninitialization:

Thread #1:
==========

really_probe() {
...
probe_failed:
...
device_unbind_cleanup(dev) {
    ...
    dev->driver = NULL;   // <= Failed probe sets dev->driver to NULL
    ...
    }
...
}

Thread #2:
==========

dev_uevent() {
...
if (dev->driver)
      // If dev->driver is NULLed from really_probe() from here on,
      // after above check, the system crashes
      add_uevent_var(env, "DRIVER=%s", dev->driver->name);
...
}

really_probe() holds the lock, already. So nothing needs to be done
there. dev_uevent() is called with lock held, often, too. But not
always. What implies that we can't add any locking in dev_uevent()
itself. So fix this race by adding the lock to the non-protected
path. This is the path where above race is observed:

 dev_uevent+0x235/0x380
 uevent_show+0x10c/0x1f0  <= Add lock here
 dev_attr_show+0x3a/0xa0
 sysfs_kf_seq_show+0x17c/0x250
 kernfs_seq_show+0x7c/0x90
 seq_read_iter+0x2d7/0x940
 kernfs_fop_read_iter+0xc6/0x310
 vfs_read+0x5bc/0x6b0
 ksys_read+0xeb/0x1b0
 __x64_sys_read+0x42/0x50
 x64_sys_call+0x27ad/0x2d30
 do_syscall_64+0xcd/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Similar cases are reported by syzkaller in

https://syzkaller.appspot.com/bug?extid=ffa8143439596313a85a

But these are regarding the *initialization* of dev->driver

dev->driver = drv;

As this switches dev->driver to non-NULL these reports can be considered
to be false-positives (which should be "fixed" by this commit, as well,
though).

The same issue was reported and tried to be fixed back in 2015 in

https://lore.kernel.org/lkml/1421259054-2574-1-git-send-email-a.sangwan@samsung.com/

already.

Fixes: 239378f16a ("Driver core: add uevent vars for devices of a class")
Cc: stable <stable@kernel.org>
Cc: syzbot+ffa8143439596313a85a@syzkaller.appspotmail.com
Cc: Ashish Sangwan <a.sangwan@samsung.com>
Cc: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Link: https://lore.kernel.org/r/20240513050634.3964461-1-dirk.behme@de.bosch.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit bb3641a5831789d83a58a39ed4a928bcbece7080)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-08-08 15:52:16 +00:00
kondors1995
c16d8cd8d3 Revert "drivers: arch_topology: wire up thermal limit for arch_scale_max_freq_capacity"
This reverts commit f820821b07.
2024-06-06 16:43:08 +03:00
SK00RUPA
29a1ff2b6d Merge tag 'v4.14.345-openela' into 14.0
This is the 4.14.345 OpenELA-Extended LTS stable release
2024-06-04 17:31:52 +02:00
Qingliang Li
e28c7f7158 PM: sleep: wakeirq: fix wake irq warning in system suspend
[ Upstream commit e7a7681c859643f3f2476b2a28a494877fd89442 ]

When driver uses pm_runtime_force_suspend() as the system suspend callback
function and registers the wake irq with reverse enable ordering, the wake
irq will be re-enabled when entering system suspend, triggering an
'Unbalanced enable for IRQ xxx' warning. In this scenario, the call
sequence during system suspend is as follows:
  suspend_devices_and_enter()
    -> dpm_suspend_start()
      -> dpm_run_callback()
        -> pm_runtime_force_suspend()
          -> dev_pm_enable_wake_irq_check()
          -> dev_pm_enable_wake_irq_complete()

    -> suspend_enter()
      -> dpm_suspend_noirq()
        -> device_wakeup_arm_wake_irqs()
          -> dev_pm_arm_wake_irq()

To fix this issue, complete the setting of WAKE_IRQ_DEDICATED_ENABLED flag
in dev_pm_enable_wake_irq_complete() to avoid redundant irq enablement.

Fixes: 8527beb12087 ("PM: sleep: wakeirq: fix wake irq arming")
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Qingliang Li <qingliang.li@mediatek.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Cc: 5.16+ <stable@vger.kernel.org> # 5.16+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit 66ed532e73bdfdcdb4b49bf6e92db7758bd2ff21)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-05-30 08:58:50 +00:00
EmanuelCN
e36a23968f kernel: Remove sched_lib hacks
*This was used for unity games using userspace to report max freq so unity games wont affine the games on cores incorrectly, now that we got sultan's commit this is not needed anymore.
2024-05-20 22:55:52 +03:00
kondors1995
1dc18a5da0 Merge remote-tracking branch 'openela/linux-4.14.y' into 14.0 2024-05-12 12:26:07 +03:00
Vincent Guittot
81d6b605e4 sched/topology: Remove unused 'sd' parameter from arch_scale_cpu_capacity()
The 'struct sched_domain *sd' parameter to arch_scale_cpu_capacity() is
unused since commit:

  765d0af19f5f ("sched/topology: Remove the ::smt_gain field from 'struct sched_domain'")

Remove it.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: gregkh@linuxfoundation.org
Cc: linux@armlinux.org.uk
Cc: quentin.perret@arm.com
Cc: rafael@kernel.org
Link: https://lkml.kernel.org/r/1560783617-5827-1-git-send-email-vincent.guittot@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2024-05-10 17:08:05 +03:00
Mukesh Ojha
e54af988b2 devcoredump: Send uevent once devcd is ready
[ Upstream commit af54d778a03853801d681c98c0c2a6c316ef9ca7 ]

dev_coredumpm() creates a devcoredump device and adds it
to the core kernel framework which eventually end up
sending uevent to the user space and later creates a
symbolic link to the failed device. An application
running in userspace may be interested in this symbolic
link to get the name of the failed device.

In a issue scenario, once uevent sent to the user space
it start reading '/sys/class/devcoredump/devcdX/failing_device'
to get the actual name of the device which might not been
created and it is in its path of creation.

To fix this, suppress sending uevent till the failing device
symbolic link gets created and send uevent once symbolic
link is created successfully.

Fixes: 833c95456a ("device coredump: add new device coredump class")
Signed-off-by: Mukesh Ojha <quic_mojha@quicinc.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1700232572-25823-1-git-send-email-quic_mojha@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
2024-05-06 14:36:42 +00:00
Mukesh Ojha
704e90cd5a devcoredump : Serialize devcd_del work
[ Upstream commit 01daccf748323dfc61112f474cf2ba81015446b0 ]

In following scenario(diagram), when one thread X running dev_coredumpm()
adds devcd device to the framework which sends uevent notification to
userspace and another thread Y reads this uevent and call to
devcd_data_write() which eventually try to delete the queued timer that
is not initialized/queued yet.

So, debug object reports some warning and in the meantime, timer is
initialized and queued from X path. and from Y path, it gets reinitialized
again and timer->entry.pprev=NULL and try_to_grab_pending() stucks.

To fix this, introduce mutex and a boolean flag to serialize the behaviour.

 	cpu0(X)			                cpu1(Y)

    dev_coredump() uevent sent to user space
    device_add()  ======================> user space process Y reads the
                                          uevents writes to devcd fd
                                          which results into writes to

                                         devcd_data_write()
                                           mod_delayed_work()
                                             try_to_grab_pending()
                                               del_timer()
                                                 debug_assert_init()
   INIT_DELAYED_WORK()
   schedule_delayed_work()
                                                   debug_object_fixup()
                                                     timer_fixup_assert_init()
                                                       timer_setup()
                                                         do_init_timer()
                                                       /*
                                                        Above call reinitializes
                                                        the timer to
                                                        timer->entry.pprev=NULL
                                                        and this will be checked
                                                        later in timer_pending() call.
                                                       */
                                                 timer_pending()
                                                  !hlist_unhashed_lockless(&timer->entry)
                                                    !h->pprev
                                                /*
                                                  del_timer() checks h->pprev and finds
                                                  it to be NULL due to which
                                                  try_to_grab_pending() stucks.
                                                */

Link: https://lore.kernel.org/lkml/2e1f81e2-428c-f11f-ce92-eb11048cb271@quicinc.com/
Signed-off-by: Mukesh Ojha <quic_mojha@quicinc.com>
Link: https://lore.kernel.org/r/1663073424-13663-1-git-send-email-quic_mojha@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: af54d778a038 ("devcoredump: Send uevent once devcd is ready")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
2024-05-06 14:36:42 +00:00
Christophe JAILLET
08e96d4f68 regmap: debugfs: Fix a erroneous check after snprintf()
[ Upstream commit d3601857e14de6369f00ae19564f1d817d175d19 ]

This error handling looks really strange.
Check if the string has been truncated instead.

Fixes: f0c2319f9f ("regmap: Expose the driver name in debugfs")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/8595de2462c490561f70020a6d11f4d6b652b468.1693857825.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
2024-05-06 14:36:41 +00:00
David Lechner
f07ac9ebc8 regmap: Allow missing device in regmap_name_read_file()
[ Upstream commit 12ae3808c160b7be0de3c633ac4cbe8c5f2937bf ]

This fixes a possible NULL pointer dereference oops in
regmap_name_read_file() when the regmap does not have a device
associated with it. For example syscon regmaps retrieved with
syscon_regmap_lookup_by_compatible() don't have a device.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: d3601857e14d ("regmap: debugfs: Fix a erroneous check after snprintf()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
2024-05-06 14:36:41 +00:00
Johan Hovold
16853250e5 PM: sleep: wakeirq: fix wake irq arming
[ Upstream commit 8527beb12087238d4387607597b4020bc393c4b4 ]

The decision whether to enable a wake irq during suspend can not be done
based on the runtime PM state directly as a driver may use wake irqs
without implementing runtime PM. Such drivers specifically leave the
state set to the default 'suspended' and the wake irq is thus never
enabled at suspend.

Add a new wake irq flag to track whether a dedicated wake irq has been
enabled at runtime suspend and therefore must not be enabled at system
suspend.

Note that pm_runtime_enabled() can not be used as runtime PM is always
disabled during late suspend.

Fixes: 69728051f5bf ("PM / wakeirq: Fix unbalanced IRQ enable for wakeirq")
Cc: 4.16+ <stable@vger.kernel.org> # 4.16+
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
2024-05-06 14:36:37 +00:00
Chunfeng Yun
b54ef4914a PM / wakeirq: support enabling wake-up irq after runtime_suspend called
[ Upstream commit 259714100d98b50bf04d36a21bf50ca8b829fc11 ]

When the dedicated wake IRQ is level trigger, and it uses the
device's low-power status as the wakeup source, that means if the
device is not in low-power state, the wake IRQ will be triggered
if enabled; For this case, need enable the wake IRQ after running
the device's ->runtime_suspend() which make it enter low-power state.

e.g.
Assume the wake IRQ is a low level trigger type, and the wakeup
signal comes from the low-power status of the device.
The wakeup signal is low level at running time (0), and becomes
high level when the device enters low-power state (runtime_suspend
(1) is called), a wakeup event at (2) make the device exit low-power
state, then the wakeup signal also becomes low level.

                ------------------
               |           ^     ^|
----------------           |     | --------------
 |<---(0)--->|<--(1)--|   (3)   (2)    (4)

if enable the wake IRQ before running runtime_suspend during (0),
a wake IRQ will arise, it causes resume immediately;
it works if enable wake IRQ ( e.g. at (3) or (4)) after running
->runtime_suspend().

This patch introduces a new status WAKE_IRQ_DEDICATED_REVERSE to
optionally support enabling wake IRQ after running ->runtime_suspend().

Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Stable-dep-of: 8527beb12087 ("PM: sleep: wakeirq: fix wake irq arming")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
2024-05-06 14:36:37 +00:00
Mark Brown
52fca5bb0e regmap: Account for register length in SMBus I/O limits
[ Upstream commit 0c9d2eb5e94792fe64019008a04d4df5e57625af ]

The SMBus I2C buses have limits on the size of transfers they can do but
do not factor in the register length meaning we may try to do a transfer
longer than our length limit, the core will not take care of this.
Future changes will factor this out into the core but there are a number
of users that assume current behaviour so let's just do something
conservative here.

This does not take account padding bits but practically speaking these
are very rarely if ever used on I2C buses given that they generally run
slowly enough to mean there's no issue.

Cc: stable@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230712-regmap-max-transfer-v1-2-80e2aed22e83@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
2024-05-06 14:36:34 +00:00
Ingo Molnar
0fafe38086 thermal/cpu-cooling, sched/core: Move the arch_set_thermal_pressure() API to generic scheduler code
drivers/base/arch_topology.c is only built if CONFIG_GENERIC_ARCH_TOPOLOGY=y,
resulting in such build failures:

  cpufreq_cooling.c:(.text+0x1e7): undefined reference to `arch_set_thermal_pressure'

Move it to sched/core.c instead, and keep it enabled on x86 despite
us not having a arch_scale_thermal_pressure() facility there, to
build-test this thing.

Cc: Thara Gopinath <thara.gopinath@linaro.org>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Divyanshu-Modi <divyan.m05@gmail.com>
Change-Id: Ia848a5727078f759a287601435cf5d9f9a0f0557
Signed-off-by: Divyanshu-Modi <divyan.m05@gmail.com>
2024-04-25 10:39:31 +03:00
Thara Gopinath
e945b34ac7 drivers/base/arch_topology: Add infrastructure to store and update instantaneous thermal pressure
Add architecture specific APIs to update and track thermal pressure on a
per CPU basis. A per CPU variable thermal_pressure is introduced to keep
track of instantaneous per CPU thermal pressure. Thermal pressure is the
delta between maximum capacity and capped capacity due to a thermal event.

topology_get_thermal_pressure can be hooked into the scheduler specified
arch_scale_thermal_pressure to retrieve instantaneous thermal pressure of
a CPU.

arch_set_thermal_pressure can be used to update the thermal pressure.

Considering topology_get_thermal_pressure reads thermal_pressure and
arch_set_thermal_pressure writes into thermal_pressure, one can argue for
some sort of locking mechanism to avoid a stale value.  But considering
topology_get_thermal_pressure can be called from a system critical path
like scheduler tick function, a locking mechanism is not ideal. This means
that it is possible the thermal_pressure value used to calculate average
thermal pressure for a CPU can be stale for up to 1 tick period.

Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200222005213.3873-4-thara.gopinath@linaro.org
Signed-off-by: Tashfin Shakeer Rhythm <tashfinshakeerrhythm@gmail.com>
2024-04-25 10:39:30 +03:00
Sultan Alsawaf
4413d86637 pm_qos: Use SRCU notifier chains
Notifier registration and unregistration are rare operations, while the
notifier chain is called very frequently for PM QoS.

Use SRCU to eliminate the overhead from the rwsem in the blocking notifier
chain call since PM QoS is relatively hot.

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
2024-04-21 22:19:50 +03:00
kondors1995
af30df53ee treeweide: Revert Pixel 8 cass backports
Someting caused issues with media playback

Squashed commit of the following:

commit 9b42dfb148a86d279550e50e7374c799a03a5a6f
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:41 2024 +0300

    Revert "sched/fair: Clean up calc_cfs_shares()"

    This reverts commit 09f624912f.

commit 8acb165e9e42219646fd3e6d6c3f51a6f702a686
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:32 2024 +0300

    Revert "sched/fair: Add comment to calc_cfs_shares()"

    This reverts commit f9d3ffd696.

commit 423c42eb6eb17ad7f3f33cdab7fdf1ff0f98dc79
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:32 2024 +0300

    Revert "sched/fair: Cure calc_cfs_shares() vs. reweight_entity()"

    This reverts commit 82b9ddd10d.

commit 1093143c06279c2d89b3241ac3e5abf339f7abcd
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:31 2024 +0300

    Revert "sched/fair: Remove se->load.weight from se->avg.load_sum"

    This reverts commit 8afedeb608.

commit 4504e6b8c2119e092e831879cbd9c6adaea2713a
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:31 2024 +0300

    Revert "sched: remove rt_rq utilization tracking for now"

    This reverts commit ca1bdfe9c2.

commit db5377a1b2868ffc6d3f33225353c33398e1de7b
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:30 2024 +0300

    Revert "sched/fair: Change update_load_avg() arguments"

    This reverts commit 561a960285.

commit d099da1d8854cbbdb8fca1c4eaf4f692f940a6c7
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:30 2024 +0300

    Revert "sched/fair: Move enqueue migrate handling"

    This reverts commit 4fe3a618af.

commit 9b8f11264e1bd21ecfd69b6c77e88d9893e20a98
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:29 2024 +0300

    Revert "sched/fair: Rename {en,de}queue_entity_load_avg()"

    This reverts commit 86597c5bf2.

commit 382d23f36c9c5430b0f96cbf379ded416bc1f330
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:29 2024 +0300

    Revert "sched/fair: Introduce {en,de}queue_load_avg()"

    This reverts commit 04ee68d87c.

commit 7d7c60a4d4ceb493f40703bf596ac949df31dd33
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:28 2024 +0300

    Revert "sched/fair: More accurate reweight_entity()"

    This reverts commit ec54bd1f93.

commit afcd60d3ee87de1d4f069acc713e2097d9b40be8
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:28 2024 +0300

    Revert "sched/fair: Use reweight_entity() for set_user_nice()"

    This reverts commit 0d5a173dfd.

commit af78e8c698df9201648634d7dd1e4804494a765d
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:27 2024 +0300

    Revert "sched/fair: Rewrite cfs_rq->removed_*avg"

    This reverts commit 7b0d11dc5a.

commit 2a44c05e1f96b14f80ea578b386af04eb24e5aac
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:27 2024 +0300

    Revert "sched/fair: Rewrite PELT migration propagation"

    This reverts commit dc3a4b3e44.

commit a876ca5f4b2937b8adc90b3f502376d45a891d54
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:26 2024 +0300

    Revert "sched/fair: Propagate an effective runnable_load_avg"

    This reverts commit 017d4c0519.

commit 8a0c9809f3fbabc583a485af142b40f0b9945a6d
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:26 2024 +0300

    Revert "sched/fair: Implement synchonous PELT detach on load-balance migrate"

    This reverts commit c240cbcefb.

commit 8d002da6ccedb08096a371826525e0e21587f469
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:25 2024 +0300

    Revert "sched/fair: Align PELT windows between cfs_rq and its se"

    This reverts commit 2b669872a6.

commit ceb6db696fe8210e0dc9ce1643fcea314ae84d68
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:25 2024 +0300

    Revert "sched/fair: Implement more accurate async detach"

    This reverts commit a5dce93362.

commit d6afb5da3f6ccc3c426ec6cef2c4b955b0127f79
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:25 2024 +0300

    Revert "sched/fair: Calculate runnable_weight slightly differently"

    This reverts commit 49af7a9c70.

commit 302db79364ce3cdd41e9b33f48a0d5a8c9818ded
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:24 2024 +0300

    Revert "sched/fair: Update calc_group_*() comments"

    This reverts commit 245ba7cfcb.

commit 61ec8d04a966c839f3f204e99e5006a1e42c816a
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:23 2024 +0300

    Revert "sched/pelt: Move PELT related code in a dedicated file"

    This reverts commit 05c4270dbb.

commit 494151c770c9afcf2f4231029bb35d337385c5f8
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:23 2024 +0300

    Revert "sched/rt: Add rt_rq utilization tracking"

    This reverts commit 1efbd97f33.

commit ee00f39c0c36fc5c7d17b9fc8f7a273acd537efe
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:22 2024 +0300

    Revert "sched: fix build"

    This reverts commit bead5679af.

commit c85ab7e00b755f7b0b008d0657ecc805755248e1
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:22 2024 +0300

    Revert "sched/dl: Add dl_rq utilization tracking"

    This reverts commit 1f48d4df0e.

commit d99ffef9a8069efde7bb85869280025b60519db6
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:21 2024 +0300

    Revert "sched/irq: Add IRQ utilization tracking"

    This reverts commit d1c9480337.

commit 2be20e582bf3129e9b572f6b39cef311d0fe3d15
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:20 2024 +0300

    Revert "sched/schedutil: add `schedutil_freq_util()`"

    This reverts commit f3e8cb0f44.

commit b495ca0e67d581fc7cc7d250d26d36fdeb8181c4
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:20 2024 +0300

    Revert "FROMLIST: sched: Relocate arch_scale_cpu_capacity"

    This reverts commit 844d670403.

commit 33c4a0dc0cfb20c02cdb705770f888343d11a1a0
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:19 2024 +0300

    Revert "sched: cpufreq: add map_util_freq()"

    This reverts commit 1f9df50075.

commit d2fedfac7610b0121e6338a8c64ac7414b5b5965
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:19 2024 +0300

    Revert "sched/pelt: Add support to track thermal pressure"

    This reverts commit 17e0388043.

commit afe91b6a918674b387deeb5ec201a3b7fd720c48
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:18 2024 +0300

    Revert "sched/topology: Add callback to read per CPU thermal pressure"

    This reverts commit 69693e21cc.

commit 760f1b0c528c1d2d8fe62be335d98caa74671f51
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:17 2024 +0300

    Revert "drivers/base/arch_topology: Add infrastructure to store and update instantaneous thermal pressure"

    This reverts commit 25a4c1f1a7.

commit 38dc404537a51df485fc1001a440d66f9e5bdfe3
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:17 2024 +0300

    Revert "arm64/topology: Populate arch_scale_thermal_pressure() for arm64 platforms"

    This reverts commit 27a4d5d4ed.

commit 9c1479b093688b09dcf386f019b34203c6dc1367
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:16 2024 +0300

    Revert "arm/topology: Populate arch_scale_thermal_pressure() for ARM platforms"

    This reverts commit 97e866391b.

commit 67039c6e35777ef753590f15f07190b9296a309c
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:16 2024 +0300

    Revert "sched/fair: Enable periodic update of average thermal pressure"

    This reverts commit 7ab5e58f6e.

commit 2a53cfee36bed22116d35da58ea944d5448910d8
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:15 2024 +0300

    Revert "BACKPORT: thermal: cpu_cooling: Update thermal pressure in case of a maximum frequency capping"

    This reverts commit 7d4b5af102.

commit 618bb2f007c30c047bd72ec4764f4da321041382
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:14 2024 +0300

    Revert "UPSTREAM: thermal: cpu_cooling: Update also offline CPUs per-cpu thermal_pressure"

    This reverts commit ee683c1595.

commit 57938e1686bc19a3455355bde6df5b339db46b1b
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:14 2024 +0300

    Revert "sched/fair: Enable tuning of decay period"

    This reverts commit a00583df62.

commit a06182dc6401475c7eb31aed0965d13ebc6881d1
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:13 2024 +0300

    Revert "init: Enable SCHED_THERMAL_PRESSURE by default"

    This reverts commit dcf24600af.

commit 9e5796f48feeb87d2dd5966d4bdffa2c78fd559d
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:12 2024 +0300

    Revert "sched:schedutil: Reland at @65b6f06b6a"

    This reverts commit f1a3787c1f.

commit 5a99475c6807fbd3f6a4b88fe18ef9853de5dbb8
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:12 2024 +0300

    Revert "thermal: cpu_cooling: fix backport"

    This reverts commit 84c18edb67.

commit 78ecfc16e24ee2da5b6f39a30c67d1134c60ee55
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:11 2024 +0300

    Revert "thermal/cpu-cooling, sched/core: Move the arch_set_thermal_pressure() API to generic scheduler code"

    This reverts commit b5c0f9489d.

commit 7df5eb08365aad663f6aff85e47dd87e986b4bd6
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:10 2024 +0300

    Revert "sched/cass: Fix CPU selection when no candidate CPUs are idle"

    This reverts commit 545493ec2d.

commit ee830b6597ce40cc38dee0486ba5b6628eee86a5
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:10 2024 +0300

    Revert "sched/cass: Clean up local variable scope in cass_best_cpu()"

    This reverts commit 03bd4ff101.

commit 298863d627468afad930e3483f8f594af047f149
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:09 2024 +0300

    Revert "sched/cass:checkout to kerneltoast/android_kernel_google_zuma@63f0b82d3"

    This reverts commit 5d04a85007.

commit 5caf8ee3242cc9e531093620e9d0edf34d2d9bd5
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:09 2024 +0300

    Revert "sched/cass: Perform runqueue selection for RT tasks too"

    This reverts commit 9752c4351d.

commit 99b278beedd77cf50fd59af702712b84dfdb6358
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:08 2024 +0300

    Revert "sched/cass: Fix suboptimal task placement when uclamp is used"

    This reverts commit e6b365c5b5.

commit 3b36702eb33d772c3730bdba422c84b2750d0d8e
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:07 2024 +0300

    Revert "sched/cass: Only treat sync waker CPU as idle if there's one task running"

    This reverts commit d12d7eee39.

commit 3037abe8c3c25cfc906ad34ea4155874167835cc
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:07 2024 +0300

    Revert "sched/cass: Eliminate redundant calls to smp_processor_id()"

    This reverts commit f686c22d10.

commit 8bef770149584f5336390367ce20ac8e0991e523
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:06 2024 +0300

    Revert "sched/cass:Adapt for our sources"

    This reverts commit 15e0e548dd.

commit cf47e4130be6df5b4581451dcf712c14ef545044
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:05 2024 +0300

    Revert "sched/fair: Set migration cost to zero to leverage DynamIQ Shared Unit"

    This reverts commit 553243db2f.

commit 9a02852fc864ea71b5d426b5b7aceeba8c72281c
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:05 2024 +0300

    Revert "sbalance: Allow IRQs to be moved off of excluded CPUs"

    This reverts commit cba4cee059.

commit 072fd97abf76bca1587d5a6a183125d8c2667c49
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:04 2024 +0300

    Revert "sbalance: Use a deferrable timer to avoid waking idle CPUs"

    This reverts commit 9efd9574cd.

commit d788e1caba4bf5bc5d3a81d2a96cfbd4d3b51381
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:03 2024 +0300

    Revert "sbalance: Use non-atomic cpumask_clear_cpu() variant"

    This reverts commit 11502f0b2b.

commit be608ef254b24bc0f5a807676bc2aa37a75c0c41
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:03 2024 +0300

    Revert "sbalance: Fix systemic issues caused by flawed IRQ statistics"

    This reverts commit dca8268454.

commit d99703fa29615b4a9f5b051742cd2f64ad65ef53
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:02 2024 +0300

    Revert "cpufreq: schedutil: Use the frequency below the target if they're close"

    This reverts commit 9a7a26c904.

commit 1cf28ec326ca586bd9b5a555e777c0ce49a9371c
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:02 2024 +0300

    Revert "raphael_defconfig: Reduce IRQ_SBALANCE_POLL_MSEC to default 3000"

    This reverts commit ab033d4dca.

commit 53ce1242f7c643c525b239c464ba61cfcef3f5ea
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:01 2024 +0300

    Revert "Revert "cpufreq: schedutil: Use the frequency below the target if they're close""

    This reverts commit 217db388c4.

commit 63f8122b844e194bc197c2a17a11871651017af6
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:00 2024 +0300

    Revert "Revert "cpufreq: schedutil: Extend limit tunables to prime""

    This reverts commit 056441ef45.

commit 09c2c5be085b6c10a6ab974b84404badc85ff393
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:28:00 2024 +0300

    Revert "Revert "cpufreq: schedutil: Expose limit tunables cluster-wise""

    This reverts commit d4c03145b6.

commit f3473acea98f745b142608e182b163c08110affe
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:27:59 2024 +0300

    Revert "raphael_defconfig:Exclude core 3 from IRQ balancing"

    This reverts commit 1b7085aae6.

commit b7ce57d5f7480430cb9e530a3a7206f2dd6456e5
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:27:58 2024 +0300

    Revert "cpufreq: schedutil: Use the frequency below the target if they're close"

    This reverts commit b64b535bea.

commit c99a62857fd75daafe6a6a76fdfe20242fb59d9d
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:27:57 2024 +0300

    Revert "cpufreq: schedutil: Set default up/down rate limits to 500/1000 us"

    This reverts commit 2dff5ad0ff.

commit f505c93a25bc5d741b52e2e219ddd86fd9022976
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:27:57 2024 +0300

    Revert "cpufreq: schedutil: Protect default up/down rate limits"

    This reverts commit d0164cdf9a.

commit b5b279845790b0b072e3abf3886d5430434d30f4
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:27:56 2024 +0300

    Revert "drm: Convert CPU-invariant uninterruptible waits to TASK_IDLE"

    This reverts commit a252ff2d01.

commit 9575adb91c2880a5dbeff1fec93aac44295f939a
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:27:55 2024 +0300

    Revert "pm_qos: Use SRCU notifier chains"

    This reverts commit 29d5065905.

commit 644abfbbd422a8f6aa9902839cfee155b3496c24
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:27:55 2024 +0300

    Revert "sched/completion: Expose wait_for_common*() to drivers"

    This reverts commit 483d30a710.

commit 1fc08c6cd803c0c24421d5d992ea4b16357aeb92
Author: kondors1995 <normandija1945@gmail.com>
Date:   Fri Apr 19 10:27:51 2024 +0300

    Revert "treewide: Fix warnings"

    This reverts commit abfb9659df.
2024-04-21 22:19:43 +03:00
Sultan Alsawaf
29d5065905 pm_qos: Use SRCU notifier chains
Notifier registration and unregistration are rare operations, while the
notifier chain is called very frequently for PM QoS.

Use SRCU to eliminate the overhead from the rwsem in the blocking notifier
chain call since PM QoS is relatively hot.

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
2024-04-06 13:01:50 +03:00
Ingo Molnar
b5c0f9489d thermal/cpu-cooling, sched/core: Move the arch_set_thermal_pressure() API to generic scheduler code
drivers/base/arch_topology.c is only built if CONFIG_GENERIC_ARCH_TOPOLOGY=y,
resulting in such build failures:

  cpufreq_cooling.c:(.text+0x1e7): undefined reference to `arch_set_thermal_pressure'

Move it to sched/core.c instead, and keep it enabled on x86 despite
us not having a arch_scale_thermal_pressure() facility there, to
build-test this thing.

Cc: Thara Gopinath <thara.gopinath@linaro.org>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Divyanshu-Modi <divyan.m05@gmail.com>
Change-Id: Ia848a5727078f759a287601435cf5d9f9a0f0557
Signed-off-by: Divyanshu-Modi <divyan.m05@gmail.com>
2024-04-06 13:00:43 +03:00
Thara Gopinath
25a4c1f1a7 drivers/base/arch_topology: Add infrastructure to store and update instantaneous thermal pressure
Add architecture specific APIs to update and track thermal pressure on a
per CPU basis. A per CPU variable thermal_pressure is introduced to keep
track of instantaneous per CPU thermal pressure. Thermal pressure is the
delta between maximum capacity and capped capacity due to a thermal event.

topology_get_thermal_pressure can be hooked into the scheduler specified
arch_scale_thermal_pressure to retrieve instantaneous thermal pressure of
a CPU.

arch_set_thermal_pressure can be used to update the thermal pressure.

Considering topology_get_thermal_pressure reads thermal_pressure and
arch_set_thermal_pressure writes into thermal_pressure, one can argue for
some sort of locking mechanism to avoid a stale value.  But considering
topology_get_thermal_pressure can be called from a system critical path
like scheduler tick function, a locking mechanism is not ideal. This means
that it is possible the thermal_pressure value used to calculate average
thermal pressure for a CPU can be stale for up to 1 tick period.

Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200222005213.3873-4-thara.gopinath@linaro.org
Signed-off-by: Tashfin Shakeer Rhythm <tashfinshakeerrhythm@gmail.com>
2024-04-06 13:00:42 +03:00
kondors1995
e6b0b34bb0 Merge branch 'linux-4.14.y' of https://github.com/openela/kernel-lts into 14.0 2024-03-26 18:32:22 +02:00
Konrad Dybcio
70bd0bc34e pmdomain: core: Move the unused cleanup to a _sync initcall
commit 741ba0134fa7822fcf4e4a0a537a5c4cfd706b20 upstream.

The unused clock cleanup uses the _sync initcall to give all users at
earlier initcalls time to probe. Do the same to avoid leaving some PDs
dangling at "on" (which actually happened on qcom!).

Fixes: 2fe71dcdfd ("PM / domains: Add late_initcall to disable unused PM domains")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231227-topic-pmdomain_sync_cleanup-v1-1-5f36769d538b@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 81c0229f34f0e1330789fae616b9e2219ab28477)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-03-08 08:21:39 +00:00
Mauro Carvalho Chehab
7fa4477471 drivers: core: fix kernel-doc markup for dev_err_probe()
commit 074b3aad307de6126fbac1fff4996d1034b48fee upstream.

There are two literal blocks there. Fix the markups, in order
to produce the right html output and solve those warnings:

	./drivers/base/core.c:4218: WARNING: Unexpected indentation.
	./drivers/base/core.c:4222: WARNING: Definition list ends without a blank line; unexpected unindent.
	./drivers/base/core.c:4223: WARNING: Block quote ends without a blank line; unexpected unindent.

Fixes: a787e5400a1c ("driver core: add device probe log helper")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 4d61ff79b439fe9cd5eaa3363a25853f230e2026)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-03-08 08:21:28 +00:00
Michał Mirosław
4fa22d4f07 driver code: print symbolic error code
commit 693a8e936590f93451e6f5a3d748616f5a59c80b upstream.

dev_err_probe() prepends the message with an error code. Let's make it
more readable by translating the code to a more recognisable symbol.

Fixes: a787e5400a1c ("driver core: add device probe log helper")
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Link: https://lore.kernel.org/r/ea3f973e4708919573026fdce52c264db147626d.1598630856.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit cf07cb793264fd3c459918dda7e839d6a279493c)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-03-08 08:21:28 +00:00
Andrzej Hajda
baa039a424 driver core: add device probe log helper
[ Upstream commit a787e5400a1ceeb0ef92d71ec43aeb35b1fa1334 ]

During probe every time driver gets resource it should usually check for
error printk some message if it is not -EPROBE_DEFER and return the error.
This pattern is simple but requires adding few lines after any resource
acquisition code, as a result it is often omitted or implemented only
partially.
dev_err_probe helps to replace such code sequences with simple call,
so code:
	if (err != -EPROBE_DEFER)
		dev_err(dev, ...);
	return err;
becomes:
	return dev_err_probe(dev, err, ...);

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Rafael J. Wysocki <rafael@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200713144324.23654-2-a.hajda@samsung.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 6d710b769c1f ("serial: sc16is7xx: add check for unsupported SPI modes during probe")
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit b0465a4897047ece1e4275fefc88a66ee41c5379)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-03-06 11:04:03 +00:00
kondors1995
55ab5065c4 Merge branch 'android-4.14-stable' of https://github.com/aosp-mirror/kernel_common into 14.0 2023-12-13 10:52:27 +02:00
Greg Kroah-Hartman
fc26a9488d Merge 4.14.332 into android-4.14-stable
Changes in 4.14.332
	RDMA/irdma: Prevent zero-length STAG registration
	drm/panel: simple: Fix Innolux G101ICE-L01 timings
	ata: pata_isapnp: Add missing error check for devm_ioport_map()
	drm/rockchip: vop: Fix color for RGB888/BGR888 format on VOP full
	ipv4: Correct/silence an endian warning in __ip_do_redirect
	net: usb: ax88179_178a: fix failed operations during ax88179_reset
	arm/xen: fix xen_vcpu_info allocation alignment
	amd-xgbe: handle corner-case during sfp hotplug
	amd-xgbe: propagate the correct speed and duplex status
	net: axienet: Fix check for partial TX checksum
	mtd: rawnand: brcmnand: Fix ecc chunk calculation for erased page bitfips
	s390/dasd: protect device queue against concurrent access
	USB: serial: option: add Luat Air72*U series products
	bcache: check return value from btree_node_alloc_replacement()
	bcache: prevent potential division by zero error
	USB: serial: option: add Fibocom L7xx modules
	USB: serial: option: fix FM101R-GL defines
	USB: serial: option: don't claim interface 4 for ZTE MF290
	usb: dwc3: set the dma max_seg_size
	pinctrl: avoid reload of p state in list iteration
	firewire: core: fix possible memory leak in create_units()
	dm-verity: align struct dm_verity_fec_io properly
	dm verity: don't perform FEC for failed readahead IO
	powerpc: Don't clobber f0/vs0 during fp|altivec register save
	btrfs: fix off-by-one when checking chunk map includes logical address
	btrfs: send: ensure send_fd is writable
	ipv4: igmp: fix refcnt uaf issue when receiving igmp query packet
	ravb: Fix races between ravb_tx_timeout_work() and net related ops
	net: ravb: Start TX queues after HW initialization succeeded
	driver core: Release all resources during unbind before updating device links
	Linux 4.14.332

Change-Id: Ia04d4ea54ddcce3f8ba06d6a28b26e1021e5b56f
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2023-12-08 09:23:10 +00:00
Saravana Kannan
c6e94a1427 driver core: Release all resources during unbind before updating device links
commit 2e84dc37920012b458e9458b19fc4ed33f81bc74 upstream.

This commit fixes a bug in commit 9ed9895370 ("driver core: Functional
dependencies tracking support") where the device link status was
incorrectly updated in the driver unbind path before all the device's
resources were released.

Fixes: 9ed9895370 ("driver core: Functional dependencies tracking support")
Cc: stable <stable@kernel.org>
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Closes: https://lore.kernel.org/all/20231014161721.f4iqyroddkcyoefo@pengutronix.de/
Signed-off-by: Saravana Kannan <saravanak@google.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Matti Vaittinen <mazziesaccount@gmail.com>
Cc: James Clark <james.clark@arm.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Tested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231018013851.3303928-1-saravanak@google.com
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-08 08:42:00 +01:00
kondors1995
79fcda8302 Merge remote-tracking branch 'aosp/android-4.14-stable' into 13.0 2023-11-16 12:37:14 +02:00
Greg Kroah-Hartman
47ab076483 Merge 4.14.329 into android-4.14-stable
Changes in 4.14.329
	mcb: Return actual parsed size when reading chameleon table
	mcb-lpc: Reallocate memory region to avoid memory overlapping
	virtio_balloon: Fix endless deflation and inflation on arm64
	treewide: Spelling fix in comment
	igb: Fix potential memory leak in igb_add_ethtool_nfc_entry
	r8152: Increase USB control msg timeout to 5000ms as per spec
	tcp: fix wrong RTO timeout when received SACK reneging
	gtp: uapi: fix GTPA_MAX
	i40e: Fix wrong check for I40E_TXR_FLAGS_WB_ON_ITR
	i2c: muxes: i2c-mux-pinctrl: Use of_get_i2c_adapter_by_node()
	i2c: muxes: i2c-mux-gpmux: Use of_get_i2c_adapter_by_node()
	i2c: muxes: i2c-demux-pinctrl: Use of_get_i2c_adapter_by_node()
	perf/core: Fix potential NULL deref
	NFS: Don't call generic_error_remove_page() while holding locks
	ARM: 8933/1: replace Sun/Solaris style flag on section directive
	drm/dp_mst: Fix NULL deref in get_mst_branch_device_by_guid_helper()
	kobject: Fix slab-out-of-bounds in fill_kobj_path()
	f2fs: fix to do sanity check on inode type during garbage collection
	nfsd: lock_rename() needs both directories to live on the same fs
	x86/i8259: Skip probing when ACPI/MADT advertises PCAT compatibility
	x86/mm: Simplify RESERVE_BRK()
	x86/mm: Fix RESERVE_BRK() for older binutils
	driver: platform: Add helper for safer setting of driver_override
	rpmsg: Fix kfree() of static memory on setting driver_override
	rpmsg: Fix calling device_lock() on non-initialized device
	rpmsg: glink: Release driver_override
	rpmsg: Fix possible refcount leak in rpmsg_register_device_override()
	x86: Fix .brk attribute in linker script
	ASoC: simple-card: fixup asoc_simple_probe() error handling
	irqchip/stm32-exti: add missing DT IRQ flag translation
	dmaengine: ste_dma40: Fix PM disable depth imbalance in d40_probe
	Input: synaptics-rmi4 - handle reset delay when using SMBus trsnsport
	fbdev: atyfb: only use ioremap_uc() on i386 and ia64
	netfilter: nfnetlink_log: silence bogus compiler warning
	ASoC: rt5650: fix the wrong result of key button
	fbdev: uvesafb: Call cn_del_callback() at the end of uvesafb_exit()
	scsi: mpt3sas: Fix in error path
	platform/x86: asus-wmi: Change ASUS_WMI_BRN_DOWN code from 0x20 to 0x2e
	net: chelsio: cxgb4: add an error code check in t4_load_phy_fw
	ata: ahci: fix enum constants for gcc-13
	remove the sx8 block driver
	vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF
	PCI: Prevent xHCI driver from claiming AMD VanGogh USB3 DRD device
	usb: storage: set 1.50 as the lower bcdDevice for older "Super Top" compatibility
	tty: 8250: Remove UC-257 and UC-431
	tty: 8250: Add support for additional Brainboxes UC cards
	tty: 8250: Add support for Brainboxes UP cards
	tty: 8250: Add support for Intashield IS-100
	Linux 4.14.329

Change-Id: If187990b63eb0e3467f9d483ab7638db2640d0f3
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2023-11-08 11:07:27 +00:00
Krzysztof Kozlowski
e9a07a5853 driver: platform: Add helper for safer setting of driver_override
commit 6c2f421174273de8f83cde4286d1c076d43a2d35 upstream.

Several core drivers and buses expect that driver_override is a
dynamically allocated memory thus later they can kfree() it.

However such assumption is not documented, there were in the past and
there are already users setting it to a string literal. This leads to
kfree() of static memory during device release (e.g. in error paths or
during unbind):

    kernel BUG at ../mm/slub.c:3960!
    Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
    ...
    (kfree) from [<c058da50>] (platform_device_release+0x88/0xb4)
    (platform_device_release) from [<c0585be0>] (device_release+0x2c/0x90)
    (device_release) from [<c0a69050>] (kobject_put+0xec/0x20c)
    (kobject_put) from [<c0f2f120>] (exynos5_clk_probe+0x154/0x18c)
    (exynos5_clk_probe) from [<c058de70>] (platform_drv_probe+0x6c/0xa4)
    (platform_drv_probe) from [<c058b7ac>] (really_probe+0x280/0x414)
    (really_probe) from [<c058baf4>] (driver_probe_device+0x78/0x1c4)
    (driver_probe_device) from [<c0589854>] (bus_for_each_drv+0x74/0xb8)
    (bus_for_each_drv) from [<c058b48c>] (__device_attach+0xd4/0x16c)
    (__device_attach) from [<c058a638>] (bus_probe_device+0x88/0x90)
    (bus_probe_device) from [<c05871fc>] (device_add+0x3dc/0x62c)
    (device_add) from [<c075ff10>] (of_platform_device_create_pdata+0x94/0xbc)
    (of_platform_device_create_pdata) from [<c07600ec>] (of_platform_bus_create+0x1a8/0x4fc)
    (of_platform_bus_create) from [<c0760150>] (of_platform_bus_create+0x20c/0x4fc)
    (of_platform_bus_create) from [<c07605f0>] (of_platform_populate+0x84/0x118)
    (of_platform_populate) from [<c0f3c964>] (of_platform_default_populate_init+0xa0/0xb8)
    (of_platform_default_populate_init) from [<c01031f8>] (do_one_initcall+0x8c/0x404)

Provide a helper which clearly documents the usage of driver_override.
This will allow later to reuse the helper and reduce the amount of
duplicated code.

Convert the platform driver to use a new helper and make the
driver_override field const char (it is not modified by the core).

Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220419113435.246203-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-11-08 11:21:07 +01:00
kondors1995
f62c01b1c6 Merge branch 'android-4.14-stable' of https://github.com/aosp-mirror/kernel_common into 13.0 2023-11-04 12:25:20 +02:00
Greg Kroah-Hartman
67419faf9f Merge 4.14.328 into android-4.14-stable
Changes in 4.14.328
	RDMA/cxgb4: Check skb value for failure to allocate
	HID: logitech-hidpp: Fix kernel crash on receiver USB disconnect
	drm: etvnaviv: fix bad backport leading to warning
	ieee802154: ca8210: Fix a potential UAF in ca8210_probe
	drm/vmwgfx: fix typo of sizeof argument
	ixgbe: fix crash with empty VF macvlan list
	nfc: nci: assert requested protocol is valid
	workqueue: Override implicit ordered attribute in workqueue_apply_unbound_cpumask()
	usb: xhci: xhci-ring: Use sysdev for mapping bounce buffer
	net: usb: dm9601: fix uninitialized variable use in dm9601_mdio_read
	usb: musb: Get the musb_qh poniter after musb_giveback
	usb: musb: Modify the "HWVers" register address
	iio: pressure: bmp280: Fix NULL pointer exception
	iio: pressure: ms5611: ms5611_prom_is_valid false negative bug
	mcb: remove is_added flag from mcb_device struct
	ceph: fix incorrect revoked caps assert in ceph_fill_file_size()
	Input: powermate - fix use-after-free in powermate_config_complete
	Input: xpad - add PXN V900 support
	cgroup: Remove duplicates in cgroup v1 tasks file
	pinctrl: avoid unsafe code pattern in find_pinctrl()
	usb: gadget: udc-xilinx: replace memcpy with memcpy_toio
	usb: gadget: ncm: Handle decoding of multiple NTB's in unwrap call
	x86/cpu: Fix AMD erratum #1485 on Zen4-based CPUs
	usb: hub: Guard against accesses to uninitialized BOS descriptors
	Bluetooth: hci_event: Ignore NULL link key
	Bluetooth: Reject connection with the device which has same BD_ADDR
	Bluetooth: Fix a refcnt underflow problem for hci_conn
	Bluetooth: vhci: Fix race when opening vhci device
	Bluetooth: hci_event: Fix coding style
	Bluetooth: avoid memcmp() out of bounds warning
	nfc: nci: fix possible NULL pointer dereference in send_acknowledge()
	regmap: fix NULL deref on lookup
	KVM: x86: Mask LVTPC when handling a PMI
	netfilter: nft_payload: fix wrong mac header matching
	xfrm: fix a data-race in xfrm_gen_index()
	net: ipv4: fix return value check in esp_remove_trailer
	net: ipv6: fix return value check in esp_remove_trailer
	net: rfkill: gpio: prevent value glitch during probe
	net: usb: smsc95xx: Fix an error code in smsc95xx_reset()
	i40e: prevent crash on probe if hw registers have invalid values
	ARM: dts: ti: omap: Fix noisy serial with overrun-throttle-ms for mapphone
	btrfs: initialize start_slot in btrfs_log_prealloc_extents
	i2c: mux: Avoid potential false error message in i2c_mux_add_adapter
	overlayfs: set ctime when setting mtime and atime
	gpio: timberdale: Fix potential deadlock on &tgpio->lock
	ata: libata-eh: Fix compilation warning in ata_eh_link_report()
	tracing: relax trace_event_eval_update() execution with cond_resched()
	HID: holtek: fix slab-out-of-bounds Write in holtek_kbd_input_event
	Bluetooth: Avoid redundant authentication
	Bluetooth: hci_core: Fix build warnings
	wifi: mac80211: allow transmitting EAPOL frames with tainted key
	wifi: cfg80211: avoid leaking stack data into trace
	sky2: Make sure there is at least one frag_addr available
	mmc: core: Capture correct oemid-bits for eMMC cards
	Revert "pinctrl: avoid unsafe code pattern in find_pinctrl()"
	ACPI: irq: Fix incorrect return value in acpi_register_gsi()
	USB: serial: option: add Telit LE910C4-WWX 0x1035 composition
	USB: serial: option: add entry for Sierra EM9191 with new firmware
	USB: serial: option: add Fibocom to DELL custom modem FM101R-GL
	perf: Disallow mis-matched inherited group reads
	s390/pci: fix iommu bitmap allocation
	gpio: vf610: set value before the direction to avoid a glitch
	Bluetooth: hci_sock: fix slab oob read in create_monitor_event
	Bluetooth: hci_sock: Correctly bounds check and pad HCI_MON_NEW_INDEX name
	Bluetooth: hci_event: Fix using memcmp when comparing keys
	Linux 4.14.328

Change-Id: I0ad6691640e3f75a6016e2004f005414a50dc7b9
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2023-10-25 11:33:41 +00:00
Johan Hovold
bf0ebdb947 regmap: fix NULL deref on lookup
commit c6df843348d6b71ea986266c12831cb60c2cf325 upstream.

Not all regmaps have a name so make sure to check for that to avoid
dereferencing a NULL pointer when dev_get_regmap() is used to lookup a
named regmap.

Fixes: e84861fec32d ("regmap: dev_get_regmap_match(): fix string comparison")
Cc: stable@vger.kernel.org      # 5.8
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20231006082104.16707-1-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-25 11:13:31 +02:00
Greg Kroah-Hartman
27c2ecdf37 Merge 4.14.327 into android-4.14-stable
Changes in 4.14.327
	NFS/pNFS: Report EINVAL errors from connect() to the server
	ipv4: fix null-deref in ipv4_link_failure
	powerpc/perf/hv-24x7: Update domain value check
	dccp: fix dccp_v4_err()/dccp_v6_err() again
	team: fix null-ptr-deref when team device type is changed
	gpio: tb10x: Fix an error handling path in tb10x_gpio_probe()
	i2c: mux: demux-pinctrl: check the return value of devm_kstrdup()
	clk: tegra: fix error return case for recalc_rate
	xtensa: boot: don't add include-dirs
	xtensa: boot/lib: fix function prototypes
	parisc: sba: Fix compile warning wrt list of SBA devices
	parisc: iosapic.c: Fix sparse warnings
	parisc: irq: Make irq_stack_union static to avoid sparse warning
	selftests/ftrace: Correctly enable event in instance-event.tc
	ring-buffer: Avoid softlockup in ring_buffer_resize()
	ata: libata-eh: do not clear ATA_PFLAG_EH_PENDING in ata_eh_reset()
	fbdev/sh7760fb: Depend on FB=y
	ata: ahci: Drop pointless VPRINTK() calls and convert the remaining ones
	ata: libahci: clear pending interrupt status
	watchdog: iTCO_wdt: No need to stop the timer in probe
	watchdog: iTCO_wdt: Set NO_REBOOT if the watchdog is not already running
	serial: 8250_port: Check IRQ data before use
	nilfs2: fix potential use after free in nilfs_gccache_submit_read_data()
	ata: libata-scsi: ignore reserved bits for REPORT SUPPORTED OPERATION CODES
	i2c: i801: unregister tco_pdev in i801_probe() error path
	btrfs: properly report 0 avail for very full file systems
	ata: libata-core: Fix ata_port_request_pm() locking
	ata: libata-core: Fix port and device removal
	ata: libata-sata: increase PMP SRST timeout to 10s
	fs: binfmt_elf_efpic: fix personality for ELF-FDPIC
	vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF
	ext4: fix rec_len verify error
	net/sched: sch_hfsc: Ensure inner classes have fsc curve
	ata: libata: disallow dev-initiated LPM transitions to unsupported states
	media: dvb: symbol fixup for dvb_attach() - again
	scsi: zfcp: Fix a double put in zfcp_port_enqueue()
	wifi: mwifiex: Fix tlv_buf_left calculation
	ubi: Refuse attaching if mtd's erasesize is 0
	wifi: mwifiex: Fix oob check condition in mwifiex_process_rx_packet
	drivers/net: process the result of hdlc_open() and add call of hdlc_close() in uhdlc_close()
	regmap: rbtree: Fix wrong register marked as in-cache when creating new node
	scsi: target: core: Fix deadlock due to recursive locking
	modpost: add missing else to the "of" check
	ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data()
	net: usb: smsc75xx: Fix uninit-value access in __smsc75xx_read_reg
	tcp: fix delayed ACKs for MSS boundary condition
	sctp: update transport state when processing a dupcook packet
	sctp: update hb timer immediately after users change hb_interval
	cpupower: add Makefile dependencies for install targets
	IB/mlx4: Fix the size of a buffer in add_port_entries()
	gpio: aspeed: fix the GPIO number passed to pinctrl_gpio_set_config()
	RDMA/cma: Fix truncation compilation warning in make_cma_ports
	RDMA/mlx5: Fix NULL string error
	parisc: Restore __ldcw_align for PA-RISC 2.0 processors
	Revert "rtnetlink: Reject negative ifindexes in RTM_NEWLINK"
	rtnetlink: Reject negative ifindexes in RTM_NEWLINK
	xen/events: replace evtchn_rwlock with RCU
	Linux 4.14.327

Change-Id: Id05d43bbb2482e858390f6cb31f43ba16c669675
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2023-10-11 19:14:52 +00:00
kondors1995
7972295b00 Merge tag 'v4.14.327' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux into 13.0
This is the 4.14.327 stable release
2023-10-11 15:44:44 +03:00
Richard Fitzgerald
1bce6b1081 regmap: rbtree: Fix wrong register marked as in-cache when creating new node
[ Upstream commit 7a795ac8d49e2433e1b97caf5e99129daf8e1b08 ]

When regcache_rbtree_write() creates a new rbtree_node it was passing the
wrong bit number to regcache_rbtree_set_register(). The bit number is the
offset __in number of registers__, but in the case of creating a new block
regcache_rbtree_write() was not dividing by the address stride to get the
number of registers.

Fix this by dividing by map->reg_stride.
Compare with regcache_rbtree_read() where the bit is checked.

This bug meant that the wrong register was marked as present. The register
that was written to the cache could not be read from the cache because it
was not marked as cached. But a nearby register could be marked as having
a cached value even if it was never written to the cache.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 3f4ff561bc ("regmap: rbtree: Make cache_present bitmap per node")
Link: https://lore.kernel.org/r/20230922153711.28103-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-10 21:43:41 +02:00
Greg Kroah-Hartman
3b3807ea9f Merge 4.14.326 into android-4.14-stable
Changes in 4.14.326
	ARM: pxa: remove use of symbol_get()
	mmc: au1xmmc: force non-modular build and remove symbol_get usage
	rtc: ds1685: use EXPORT_SYMBOL_GPL for ds1685_rtc_poweroff
	modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules
	USB: serial: option: add Quectel EM05G variant (0x030e)
	USB: serial: option: add FOXCONN T99W368/T99W373 product
	HID: wacom: remove the battery when the EKR is off
	Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition
	serial: sc16is7xx: fix bug when first setting GPIO direction
	nilfs2: fix general protection fault in nilfs_lookup_dirty_data_buffers()
	nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse
	pinctrl: amd: Don't show `Invalid config param` errors
	lib/ubsan: remove returns-nonnull-attribute checks
	9p: virtio: make sure 'offs' is initialized in zc_request
	ASoC: da7219: Flush pending AAD IRQ when suspending
	ethernet: atheros: fix return value check in atl1c_tso_csum()
	m68k: Fix invalid .section syntax
	s390/dasd: use correct number of retries for ERP requests
	fs/nls: make load_nls() take a const parameter
	ASoc: codecs: ES8316: Fix DMIC config
	security: keys: perform capable check only on privileged operations
	net: usb: qmi_wwan: add Quectel EM05GV2
	idmaengine: make FSL_EDMA and INTEL_IDMA64 depends on HAS_IOMEM
	scsi: qedi: Fix potential deadlock on &qedi_percpu->p_work_lock
	netlabel: fix shift wrapping bug in netlbl_catmap_setlong()
	bnx2x: fix page fault following EEH recovery
	sctp: handle invalid error codes without calling BUG()
	cifs: add a warning when the in-flight count goes negative
	ALSA: seq: oss: Fix racy open/close of MIDI devices
	powerpc/32: Include .branch_lt in data section
	powerpc/32s: Fix assembler warning about r0
	udf: Check consistency of Space Bitmap Descriptor
	udf: Handle error when adding extent to a file
	Revert "net: macsec: preserve ingress frame ordering"
	reiserfs: Check the return value from __getblk()
	fs: Fix error checking for d_hash_and_lookup()
	cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit()
	regmap: rbtree: Use alloc_flags for memory allocations
	spi: tegra20-sflash: fix to check return value of platform_get_irq() in tegra_sflash_probe()
	can: gs_usb: gs_usb_receive_bulk_callback(): count RX overflow errors also in case of OOM
	wifi: mwifiex: Fix OOB and integer underflow when rx packets
	Bluetooth: nokia: fix value check in nokia_bluetooth_serdev_probe()
	net: tcp: fix unexcepted socket die when snd_wnd is 0
	crypto: caam - fix unchecked return value error
	lwt: Check LWTUNNEL_XMIT_CONTINUE strictly
	fs: ocfs2: namei: check return value of ocfs2_add_entry()
	wifi: mwifiex: fix memory leak in mwifiex_histogram_read()
	wifi: mwifiex: Fix missed return in oob checks failed path
	wifi: ath9k: protect WMI command response buffer replacement with a lock
	wifi: mwifiex: avoid possible NULL skb pointer dereference
	wifi: ath9k: use IS_ERR() with debugfs_create_dir()
	net: arcnet: Do not call kfree_skb() under local_irq_disable()
	netrom: Deny concurrent connect().
	ARM: dts: BCM53573: Add cells sizes to PCIe node
	ARM: dts: samsung: s3c6410-mini6410: correct ethernet reg addresses (split)
	ARM: dts: samsung: s5pv210-smdkv210: correct ethernet reg addresses (split)
	drm: adv7511: Fix low refresh rate register for ADV7533/5
	of: unittest: fix null pointer dereferencing in of_unittest_find_node_by_name()
	smackfs: Prevent underflow in smk_set_cipso()
	audit: fix possible soft lockup in __audit_inode_child()
	ALSA: ac97: Fix possible error value of *rac97
	drivers: clk: keystone: Fix parameter judgment in _of_pll_clk_init()
	clk: sunxi-ng: Modify mismatched function name
	PCI: Mark NVIDIA T4 GPUs to avoid bus reset
	PCI: pciehp: Use RMW accessors for changing LNKCTL
	wifi: ath10k: Use RMW accessors for changing LNKCTL
	nfs/blocklayout: Use the passed in gfp flags
	powerpc/iommu: Fix notifiers being shared by PCI and VIO buses
	jfs: validate max amount of blocks before allocation.
	fs: lockd: avoid possible wrong NULL parameter
	NFSD: da_addr_body field missing in some GETDEVICEINFO replies
	drivers: usb: smsusb: fix error handling code in smsusb_init_device
	media: dib7000p: Fix potential division by zero
	media: dvb-usb: m920x: Fix a potential memory leak in m920x_i2c_xfer()
	media: cx24120: Add retval check for cx24120_message_send()
	media: mediatek: vcodec: Return NULL if no vdec_fb is found
	usb: phy: mxs: fix getting wrong state with mxs_phy_is_otg_host()
	scsi: iscsi: Add strlen() check in iscsi_if_set{_host}_param()
	scsi: be2iscsi: Add length check when parsing nlattrs
	scsi: qla4xxx: Add length check when parsing nlattrs
	x86/APM: drop the duplicate APM_MINOR_DEV macro
	scsi: qedf: Do not touch __user pointer in qedf_dbg_stop_io_on_error_cmd_read() directly
	scsi: qedf: Do not touch __user pointer in qedf_dbg_fp_int_cmd_read() directly
	dma-buf/sync_file: Fix docs syntax
	media: go7007: Remove redundant if statement
	USB: gadget: f_mass_storage: Fix unused variable warning
	cgroup:namespace: Remove unused cgroup_namespaces_init()
	scsi: core: Use 32-bit hostnum in scsi_host_lookup()
	scsi: fcoe: Fix potential deadlock on &fip->ctlr_lock
	serial: tegra: handle clk prepare error in tegra_uart_hw_init()
	amba: bus: fix refcount leak
	Revert "IB/isert: Fix incorrect release of isert connection"
	HID: multitouch: Correct devm device reference for hidinput input_dev name
	rpmsg: glink: Add check for kstrdup
	dmaengine: ste_dma40: Add missing IRQ check in d40_probe
	igmp: limit igmpv3_newpack() packet size to IP_MAX_MTU
	netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
	netfilter: xt_u32: validate user space input
	netfilter: xt_sctp: validate the flag_info count
	igb: set max size RX buffer when store bad packet is enabled
	PM / devfreq: Fix leak in devfreq_dev_release()
	ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl
	ARM: OMAP2+: Fix -Warray-bounds warning in _pwrdm_state_switch()
	backlight/gpio_backlight: Compare against struct fb_info.device
	backlight/bd6107: Compare against struct fb_info.device
	backlight/lv5207lp: Compare against struct fb_info.device
	media: dvb: symbol fixup for dvb_attach()
	ntb: Drop packets when qp link is down
	ntb: Clean up tx tail index on link down
	ntb: Fix calculation ntb_transport_tx_free_entry()
	Revert "PCI: Mark NVIDIA T4 GPUs to avoid bus reset"
	procfs: block chmod on /proc/thread-self/comm
	parisc: Fix /proc/cpuinfo output for lscpu
	dccp: Fix out of bounds access in DCCP error handler
	X.509: if signature is unsupported skip validation
	net: handle ARPHRD_PPP in dev_is_mac_header_xmit()
	pstore/ram: Check start of empty przs during init
	crypto: stm32 - fix loop iterating through scatterlist for DMA
	scsi: qla2xxx: fix inconsistent TMF timeout
	scsi: qla2xxx: Turn off noisy message log
	fbdev/ep93xx-fb: Do not assign to struct fb_info.dev
	drm/ast: Fix DRAM init on AST2200
	parisc: led: Fix LAN receive and transmit LEDs
	parisc: led: Reduce CPU overhead for disk & lan LED computation
	clk: qcom: gcc-mdm9615: use proper parent for pll0_vote clock
	NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info
	x86/virt: Drop unnecessary check on extended CPUID level in cpu_has_svm()
	watchdog: intel-mid_wdt: add MODULE_ALIAS() to allow auto-load
	pwm: lpc32xx: Remove handling of PWM channels
	net: read sk->sk_family once in sk_mc_loop()
	igb: disable virtualization features on 82580
	net: ipv6/addrconf: avoid integer underflow in ipv6_create_tempaddr
	af_unix: Fix data-races around user->unix_inflight.
	af_unix: Fix data-race around unix_tot_inflight.
	af_unix: Fix data-races around sk->sk_shutdown.
	af_unix: Fix data race around sk->sk_err.
	net: sched: sch_qfq: Fix UAF in qfq_dequeue()
	kcm: Destroy mutex in kcm_exit_net()
	igbvf: Change IGBVF_MIN to allow set rx/tx value between 64 and 80
	igb: Change IGB_MIN to allow set rx/tx value between 64 and 80
	ata: sata_gemini: Add missing MODULE_DESCRIPTION
	ata: pata_ftide010: Add missing MODULE_DESCRIPTION
	net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()
	kcm: Fix memory leak in error path of kcm_sendmsg()
	ixgbe: fix timestamp configuration code
	kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg().
	parisc: Drop loops_per_jiffy from per_cpu struct
	autofs: fix memory leak of waitqueues in autofs_catatonic_mode
	btrfs: output extra debug info if we failed to find an inline backref
	ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer
	ACPI: video: Add backlight=native DMI quirk for Lenovo Ideapad Z470
	hw_breakpoint: fix single-stepping when using bpf_overflow_handler
	wifi: ath9k: fix printk specifier
	wifi: mwifiex: fix fortify warning
	crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui()
	tpm_tis: Resend command to recover from data transfer errors
	alx: fix OOB-read compiler warning
	drm/exynos: fix a possible null-pointer dereference due to data race in exynos_drm_crtc_atomic_disable()
	md: raid1: fix potential OOB in raid1_remove_disk()
	ext2: fix datatype of block number in ext2_xattr_set2()
	fs/jfs: prevent double-free in dbUnmount() after failed jfs_remount()
	jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount
	powerpc/pseries: fix possible memory leak in ibmebus_bus_init()
	media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer
	media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer()
	media: af9005: Fix null-ptr-deref in af9005_i2c_xfer
	media: anysee: fix null-ptr-deref in anysee_master_xfer
	media: az6007: Fix null-ptr-deref in az6007_i2c_xfer()
	iio: core: Use min() instead of min_t() to make code more robust
	media: tuners: qt1010: replace BUG_ON with a regular error
	media: pci: cx23885: replace BUG with error return
	usb: gadget: fsl_qe_udc: validate endpoint index for ch9 udc
	scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()
	serial: cpm_uart: Avoid suspicious locking
	kobject: Add sanity check for kset->kobj.ktype in kset_register()
	md/raid1: fix error: ISO C90 forbids mixed declarations
	attr: block mode changes of symlinks
	btrfs: fix lockdep splat and potential deadlock after failure running delayed items
	nfsd: fix change_info in NFSv4 RENAME replies
	mtd: rawnand: brcmnand: Fix crash during the panic_write
	mtd: rawnand: brcmnand: Fix potential false time out warning
	mtd: rawnand: brcmnand: Fix ECC level field setting for v7.2 controller
	mtd: rawnand: brcmnand: Fix potential out-of-bounds access in oob write
	net/sched: cls_fw: No longer copy tcf_result on update to avoid use-after-free
	net/sched: Retire rsvp classifier
	Linux 4.14.326

Change-Id: I22815ecf1b4b346f889ccaa561b7cb9a20f204ce
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2023-09-30 11:44:35 +00:00
kondors1995
220cc484cd Merge tag 'v4.14.326' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux into dev/13.0
This is the 4.14.326 stable release
2023-09-29 17:19:45 +03:00
Dan Carpenter
dd59a78d31 regmap: rbtree: Use alloc_flags for memory allocations
[ Upstream commit 0c8b0bf42c8cef56f7cd9cd876fbb7ece9217064 ]

The kunit tests discovered a sleeping in atomic bug.  The allocations
in the regcache-rbtree code should use the map->alloc_flags instead of
GFP_KERNEL.

[    5.005510] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:306
[    5.005960] in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 117, name: kunit_try_catch
[    5.006219] preempt_count: 1, expected: 0
[    5.006414] 1 lock held by kunit_try_catch/117:
[    5.006590]  #0: 833b9010 (regmap_kunit:86:(config)->lock){....}-{2:2}, at: regmap_lock_spinlock+0x14/0x1c
[    5.007493] irq event stamp: 162
[    5.007627] hardirqs last  enabled at (161): [<80786738>] crng_make_state+0x1a0/0x294
[    5.007871] hardirqs last disabled at (162): [<80c531ec>] _raw_spin_lock_irqsave+0x7c/0x80
[    5.008119] softirqs last  enabled at (0): [<801110ac>] copy_process+0x810/0x2138
[    5.008356] softirqs last disabled at (0): [<00000000>] 0x0
[    5.008688] CPU: 0 PID: 117 Comm: kunit_try_catch Tainted: G                 N 6.4.4-rc3-g0e8d2fdfb188 #1
[    5.009011] Hardware name: Generic DT based system
[    5.009277]  unwind_backtrace from show_stack+0x18/0x1c
[    5.009497]  show_stack from dump_stack_lvl+0x38/0x5c
[    5.009676]  dump_stack_lvl from __might_resched+0x188/0x2d0
[    5.009860]  __might_resched from __kmem_cache_alloc_node+0x1dc/0x25c
[    5.010061]  __kmem_cache_alloc_node from kmalloc_trace+0x30/0xc8
[    5.010254]  kmalloc_trace from regcache_rbtree_write+0x26c/0x468
[    5.010446]  regcache_rbtree_write from _regmap_write+0x88/0x140
[    5.010634]  _regmap_write from regmap_write+0x44/0x68
[    5.010803]  regmap_write from basic_read_write+0x8c/0x270
[    5.010980]  basic_read_write from kunit_try_run_case+0x48/0xa0

Fixes: 28644c809f ("regmap: Add the rbtree cache support")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Closes: https://lore.kernel.org/all/ee59d128-413c-48ad-a3aa-d9d350c80042@roeck-us.net/
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/58f12a07-5f4b-4a8f-ab84-0a42d1908cb9@moroto.mountain
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-23 10:46:54 +02:00
kondors1995
7925c10117 Merge branch 'android-4.14-stable' of https://github.com/aosp-mirror/kernel_common into dev-base 2023-08-25 09:53:00 +03:00