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- hid-multitouch devices should be put into high-latency mode when
suspended in order to be in line with Windows Precision Touchpad
guidelines. From Blaž Hrastnik.
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- support for "Unified Battery (1004) feature" from Filipe Laíns
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- power management improvements for intel-ish driver from Zhang Lixu
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- ACPI and OF support made more generic / decoupled. From Douglas Anderson
- support for Goodix devices from Douglas Anderson
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- User experience improvements for hid-google from Nicolas Boichat
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- HID documentation fixes from Randy Dunlap
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- KEY_RFKILL support for Chicony devices from Jian-Hong Pan
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- improved handling of generic HID keyboard (no more splitting system
and consumer controls away), in order to make it easier for userspace
to figure out the details of the device easier. From Dmitry Torokhov.
- report data sanitization fixes from Will McVicker and Randy Dunlap
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The `wacom_feature_mapping` function is careful to only set the the
touch_max value a single time, but this care does not extend to the
`wacom_wac_finger_event` function. In particular, if a device sends
multiple HID_DG_CONTACTMAX items in a single feature report, the
driver will end up retaining the value of last item.
The HID descriptor for the Cintiq Companion 2 does exactly this. It
incorrectly sets a "Report Count" of 2, which will cause the driver
to process two HID_DG_CONTACTCOUNT items. The first item has the actual
count, while the second item should have been declared as a constant
zero. The constant zero is the value the driver ends up using, however,
since it is the last HID_DG_CONTACTCOUNT in the report.
Report ID (16),
Usage (Contact Count Maximum), ; Contact count maximum (55h, static value)
Report Count (2),
Logical Maximum (10),
Feature (Variable),
To address this, we add a check that the touch_max is not already set
within the `wacom_wac_finger_event` function that processes the
HID_DG_TOUCHMAX item. We emit a warning if the value is set and ignore
the updated value.
This could potentially cause problems if there is a tablet which has
a similar issue but requires the last item to be used. This is unlikely,
however, since it would have to have a different non-zero value for
HID_DG_CONTACTMAX earlier in the same report, which makes no sense
except in the case of a firmware bug. Note that cases where the
HID_DG_CONTACTMAX items are in different reports is already handled
(and similarly ignored) by `wacom_feature_mapping` as mentioned above.
Link: https://github.com/linuxwacom/input-wacom/issues/223
Fixes: 184eccd40389 ("HID: wacom: generic: read HID_DG_CONTACTMAX from any feature report")
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
CC: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The Acer Aspire Switch 10E (SW3-016)'s keyboard-dock uses the same USB-ids
as the Acer One S1003 keyboard-dock. Yet they are not entirely the same:
1. The S1003 keyboard-dock has the same report descriptors as the
S1002 keyboard-dock (which has different USB-ids)
2. The Acer Aspire Switch 10E's keyboard-dock has different
report descriptors from the S1002/S1003 keyboard docks and it
sends 0x00880078 / 0x00880079 usage events when the touchpad is
toggled on/off (which is handled internally).
This means that all Acer kbd-docks handled by the hid-ite.c drivers
report their touchpad being toggled on/off through these custom
usage-codes with the exception of the S1003 dock, which likely is
a bug of that dock.
Add a QUIRK_TOUCHPAD_ON_OFF_REPORT quirk for the Aspire Switch 10E / S1003
usb-id so that the touchpad toggling will get reported to userspace on
the Aspire Switch 10E.
Since the Aspire Switch 10E's kbd-dock has different report-descriptors,
this also requires adding support for fixing those to ite_report_fixup().
Setting the quirk will also cause ite_report_fixup() to hit the
S1002/S1003 descriptors path on the S1003. Since the S1003 kbd-dock
never generates any input-reports for the fixed up part of the
descriptors this does not matter; and if there are versions out there
which do actually send input-reports for the touchpad-toggle then the
fixup should actually help to make things work.
This was tested on both an Acer Aspire Switch 10E and on an Acer One S1003.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Battery status is reported for the HP Spectre X360 Convertible 15-df0xxx
even if it does not have a battery. Prevent it to always report the
battery as low.
Signed-off-by: Elia Devito <eliadevito@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This new connection type is the new iteration of the Lightspeed
connection and will probably be used in some of the newer gaming
devices. It is currently use in the G Pro X Superlight.
This patch should be backported to older versions, as currently the
driver will panic when seing the unsupported connection. This isn't
an issue when using the receiver that came with the device, as Logitech
has been using different PIDs when they change the connection type, but
is an issue when using a generic receiver (well, generic Lightspeed
receiver), which is the case of the one in the Powerplay mat. Currently,
the only generic Ligthspeed receiver we support, and the only one that
exists AFAIK, is ther Powerplay.
As it stands, the driver will panic when seeing a G Pro X Superlight
connected to the Powerplay receiver and won't send any input events to
userspace! The kernel will warn about this so the issue should be easy
to identify, but it is still very worrying how hard it will fail :(
[915977.398471] logitech-djreceiver 0003:046D:C53A.0107: unusable device of type UNKNOWN (0x0f) connected on slot 1
Signed-off-by: Filipe Laíns <lains@riseup.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Added Tiger Lake H PCI device ID to the supported device list.
Signed-off-by: You-Sheng Yang <vicamo.yang@canonical.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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In e400071a805d6229223a98899e9da8c6233704a1 I added support for the
receiver that comes with the G602 device, but unfortunately I screwed up
during testing and it seems the keyboard events were actually not being
sent to userspace.
This resulted in keyboard events being broken in userspace, please
backport the fix.
The receiver uses the normal 0x01 Logitech keyboard report descriptor,
as expected, so it is just a matter of flagging it as supported.
Reported in
https://github.com/libratbag/libratbag/issues/1124
Fixes: e400071a805d6 ("HID: logitech-dj: add the G602 receiver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Filipe Laíns <lains@riseup.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Winpad A15
The ITE8568 EC on the Voyo Winpad A15 presents itself as an I2C-HID
attached keyboard and mouse (which seems to never send any events).
This needs the I2C_HID_QUIRK_NO_IRQ_AFTER_RESET quirk, otherwise we get
the following errors:
[ 3688.770850] i2c_hid i2c-ITE8568:00: failed to reset device.
[ 3694.915865] i2c_hid i2c-ITE8568:00: failed to reset device.
[ 3701.059717] i2c_hid i2c-ITE8568:00: failed to reset device.
[ 3707.205944] i2c_hid i2c-ITE8568:00: failed to reset device.
[ 3708.227940] i2c_hid i2c-ITE8568:00: can't add hid device: -61
[ 3708.236518] i2c_hid: probe of i2c-ITE8568:00 failed with error -61
Which leads to a significant boot delay.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Fix the following coccicheck warning:
./drivers/hid/hid-roccat-arvo.c:45:8-16: WARNING: use scnprintf or
sprintf.
./drivers/hid/hid-roccat-arvo.c:95:8-16: WARNING: use scnprintf or
sprintf.
./drivers/hid/hid-roccat-arvo.c:149:8-16: WARNING: use scnprintf or
sprintf.
Reported-by: Abaci Robot<abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Fix the following coccicheck warning:
./drivers/hid/wacom_sys.c:1828:8-16: WARNING: use scnprintf or sprintf.
Reported-by: Abaci Robot<abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Don't populate the const array led_names on the stack but instead make
it static. Makes the object code smaller by 79 bytes:
Before:
text data bss dec hex filename
19686 7952 256 27894 6cf6 drivers/hid/hid-lg-g15.o
After:
text data bss dec hex filename
19543 8016 256 27815 6ca7 drivers/hid/hid-lg-g15.o
(gcc version 10.2.0)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This forces reading the base folded state anytime the device is
probed, to make sure it's in sync.
This is useful after a reboot, if the device re-enumerates for
any reason (e.g. ESD shock), or if the driver is unbound/rebound
(debugging/testing).
Without this, the tablet switch state is only synchronized after a
key is pressed (since the device would then send a report that
includes the switch state), leading to strange UX (e.g. UI
mode changes when a key is pressed after reboot).
This is not a problem on detachable base attach, as the device,
by itself, sends a report after it is booted up.
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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A typical USB keyboard usually splits its keys into several reports:
- one for the basic alphanumeric keys, modifier keys, F<n> keys, six pack
keys and keypad. This report's application is normally listed as
GenericDesktop.Keyboard
- a GenericDesktop.SystemControl report for the system control keys, such
as power and sleep
- Consumer.ConsumerControl report for multimedia (forward, rewind,
play/pause, mute, etc) and other extended keys.
- additional output, vendor specific, and feature reports
Splitting each report into a separate input device is wasteful and even
hurts userspace as it makes it harder to determine the true capabilities
(set of available keys) of a keyboard, so let's adjust application
matching to merge system control and consumer control reports with
keyboard report, if one has already been processed.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:
- NULL pointer dereference regression fix for Wacom driver (Jason
Gerecke)
- functional regression fix for pam handling on some Elan and Synaptics
touchpads (Kai-Heng Feng)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: wacom: Correct NULL dereference on AES pen proximity
HID: multitouch: Apply MT_QUIRK_CONFIDENCE quirk for multi-input devices
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- a V4L2 core regression at videobuf2 when checking for single-plane
dmabuf
- a change at uAPI header v4l2-subdev.h, fixing a breakage as BIT()
macro is not available in userspace
- fix some regressions at RC core due to the usage of microseconds
everywhere on it
- a fix for a race condition at RC core
- a rename on a newly-introduced kAPI symbol (v4l2_get_link_rate),
currently used only by a single driver
- Regression fixes for rcar-vin, cedrus, ite-cir, hantro, css, venus,
and cec drivers.
* tag 'media/v5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: hantro: Fix reset_raw_fmt initialization
media: cec: add stm32 driver
media: cedrus: Fix H264 decoding
media: v4l2-subdev.h: BIT() is not available in userspace
media: Revert "media: videobuf2: Fix length check for single plane dmabuf queueing"
media: rc: ite-cir: fix min_timeout calculation
media: venus: core: Fix platform driver shutdown
media: rc: fix timeout handling after switch to microsecond durations
media: v4l: common: Fix naming of v4l2_get_link_rate
media: rcar-vin: fix return, use ret instead of zero
media: ccs: Get static data version minor correctly
media: ccs-pll: Fix link frequency for C-PHY
media: rc: ensure that uevent can be read directly after rc device register
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A handful of clk driver fixes:
- Build fix for CONFIG_PM=n in the mmp2 driver
- Kconfig warning for unmet dependencies in the i.MX driver
- Make the camera AHB clk always be enabled on qcom sc7180
- Use rate round down semantics for qcom sm8250 SD clks"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: mmp2: fix build without CONFIG_PM
clk: qcom: gcc-sm250: Use floor ops for sdcc clks
clk: imx: fix Kconfig warning for i.MX SCU clk
clk: qcom: gcc-sc7180: Mark the camera abh clock always ON
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Although the incoming fixes haven't settled down yet, all changes here
are small and mostly device-specific fixes, so nothing look worrisome.
- Yet another USB-audio regression fixes
- HD-audio ID fix and device-specific quirks
- SOF Intel / SoundWire fixes including topology
- ASoC Qualcomm and Mediatek fixes"
* tag 'sound-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (24 commits)
ALSA: hda/via: Apply the workaround generically for Clevo machines
ASoC: Intel: sof_sdw: set proper flags for Dell TGL-H SKU 0A5E
ASoC: qcom: lpass: Fix out-of-bounds DAI ID lookup
ASoC: mediatek: mt8192-mt6359: add format constraints for RT5682
ASoC: ak4458: correct reset polarity
ASoC: SOF: SND_INTEL_DSP_CONFIG dependency
ASoC: SOF: Intel: soundwire: fix select/depend unmet dependencies
ALSA: hda: intel-dsp-config: add PCI id for TGL-H
ALSA: usb-audio: workaround for iface reset issue
ALSA: pcm: One more dependency for hw constraints
ALSA: hda/realtek: Enable headset of ASUS B1400CEPE with ALC256
ASoC: Intel: Skylake: Zero snd_ctl_elem_value
ASoC: Intel: Skylake: skl-topology: Fix OOPs ib skl_tplg_complete
ASoC: qcom: Fix number of HDMI RDMA channels on sc7180
ASoC: mediatek: mt8183-da7219: ignore TDM DAI link by default
ASoC: mediatek: mt8183-mt6358: ignore TDM DAI link by default
ASoC: topology: Properly unregister DAI on removal
ASoC: topology: Fix memory corruption in soc_tplg_denum_create_values()
ASoC: qcom: lpass-ipq806x: fix bitwidth regmap field
ASoC: AMD Renoir - refine DMI entries for some Lenovo products
...
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This reverts commit dde3c6b72a16c2db826f54b2d49bdea26c3534a2.
syzbot report a double-free bug. The following case can cause this bug.
- mm/slab_common.c: create_cache(): if the __kmem_cache_create() fails,
it does:
out_free_cache:
kmem_cache_free(kmem_cache, s);
- but __kmem_cache_create() - at least for slub() - will have done
sysfs_slab_add(s)
-> sysfs_create_group() .. fails ..
-> kobject_del(&s->kobj); .. which frees s ...
We can't remove the kmem_cache_free() in create_cache(), because other
error cases of __kmem_cache_create() do not free this.
So, revert the commit dde3c6b72a16 ("mm/slub: fix a memory leak in
sysfs_slab_add()") to fix this.
Reported-by: syzbot+d0bd96b4696c1ef67991@syzkaller.appspotmail.com
Fixes: dde3c6b72a16 ("mm/slub: fix a memory leak in sysfs_slab_add()")
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
"Two small fixes:
- Fix linking error with 64-bit kernel when modules are disabled,
reported by kernel test robot
- Remove leftover reference to power_tasklet, by Davidlohr Bueso"
* 'parisc-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Enable -mlong-calls gcc option by default when !CONFIG_MODULES
parisc: Remove leftover reference to the power_tasklet
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Remove the magical "repo-abbrev" comment added when this file was
introduced in e0ab1ec9fcd3 ([PATCH] add .mailmap for proper
git-shortlog output, 2007-02-14).
It's been an undocumented feature of git-shortlog(1), originally added
to git for Linus's use. Since then he's no longer using it[1], and
I've removed the feature in git.git's 4e168333a87 (shortlog: remove
unused(?) "repo-abbrev" feature, 2021-01-12). It's on the "master"
branch, but not yet in a release version.
Let's also remove it from linux.git, both as a heads-up to any
potential users of it in linux.git whose use would be broken sooner
than later by git itself, and because it'll eventually be entirely
redundant.
1. https://lore.kernel.org/git/CAHk-=wixHyBKZVUcxq+NCWMbkrX0xnppb7UCopRWw1+oExYpYw@mail.gmail.com/
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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When building a kernel without module support, the CONFIG_MLONGCALL option
needs to be enabled in order to reach symbols which are outside of a 22-bit
branch.
This patch changes the autodetection in the Kconfig script to always enable
CONFIG_MLONGCALL when modules are disabled and uses a far call to
preempt_schedule_irq() in intr_do_preempt() to reach the symbol in all cases.
Signed-off-by: Helge Deller <deller@gmx.de>
Reported-by: kernel test robot <lkp@intel.com>
Cc: stable@vger.kernel.org # v5.6+
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Pull kvm fixes from Paolo Bonzini:
- x86 bugfixes
- Documentation fixes
- Avoid performance regression due to SEV-ES patches
- ARM:
- Don't allow tagged pointers to point to memslots
- Filter out ARMv8.1+ PMU events on v8.0 hardware
- Hide PMU registers from userspace when no PMU is configured
- More PMU cleanups
- Don't try to handle broken PSCI firmware
- More sys_reg() to reg_to_encoding() conversions
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: allow KVM_REQ_GET_NESTED_STATE_PAGES outside guest mode for VMX
KVM: x86: Revert "KVM: x86: Mark GPRs dirty when written"
KVM: SVM: Unconditionally sync GPRs to GHCB on VMRUN of SEV-ES guest
KVM: nVMX: Sync unsync'd vmcs02 state to vmcs12 on migration
kvm: tracing: Fix unmatched kvm_entry and kvm_exit events
KVM: Documentation: Update description of KVM_{GET,CLEAR}_DIRTY_LOG
KVM: x86: get smi pending status correctly
KVM: x86/pmu: Fix HW_REF_CPU_CYCLES event pseudo-encoding in intel_arch_events[]
KVM: x86/pmu: Fix UBSAN shift-out-of-bounds warning in intel_pmu_refresh()
KVM: x86: Add more protection against undefined behavior in rsvd_bits()
KVM: Documentation: Fix spec for KVM_CAP_ENABLE_CAP_VM
KVM: Forbid the use of tagged userspace addresses for memslots
KVM: arm64: Filter out v8.1+ events on v8.0 HW
KVM: arm64: Compute TPIDR_EL2 ignoring MTE tag
KVM: arm64: Use the reg_to_encoding() macro instead of sys_reg()
KVM: arm64: Allow PSCI SYSTEM_OFF/RESET to return
KVM: arm64: Simplify handling of absent PMU system registers
KVM: arm64: Hide PMU registers from userspace when not available
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"One new device ID here, plus an error handling fix - nothing
remarkable in either"
* tag 'spi-fix-v5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spidev: Add cisco device compatible
spi: altera: Fix memory leak on error path
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"The main thing here is a change to make sure that we don't try to
double resolve the supply of a regulator if we have two probes going
on simultaneously, plus an incremental fix on top of that to resolve a
lockdep issue it introduced.
There's also a patch from Dmitry Osipenko adding stubs for some
functions to avoid build issues in consumers in some configurations"
* tag 'regulator-fix-v5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: Fix lockdep warning resolving supplies
regulator: consumer: Add missing stubs to regulator/consumer.h
regulator: core: avoid regulator_resolve_supply() race condition
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This was removed long ago, back in:
6e16d9409e1 ([PARISC] Convert soft power switch driver to kthread)
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
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This reverts commit d3921cb8be29ce5668c64e23ffdaeec5f8c69399.
Chris Wilson reports that it causes boot problems:
"We have half a dozen or so different machines in CI that are silently
failing to boot, that we believe is bisected to this patch"
and the CI team confirmed that a revert fixed the issues.
The cause is unknown for now, so let's revert it.
Link: https://lore.kernel.org/lkml/161160687463.28991.354987542182281928@build.alporthouse.com/
Reported-and-tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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raw_fmt->height in never initialized. But width in initialized twice.
Fixes: 88d06362d1d05 ("media: hantro: Refactor for V4L2 API spec compliancy")
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: <stable@vger.kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Missing stm32 directory to Makefile.
Signed-off-by: Yannick Fertre <yannick.fertre@foss.st.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 4be5e8648b0c ("media: move CEC platform drivers to a separate directory")
Cc: <stable@vger.kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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During H264 API overhaul subtle bug was introduced Cedrus driver.
Progressive references have both, top and bottom reference flags set.
Cedrus reference list expects only bottom reference flag and only when
interlaced frames are decoded. However, due to a bug in Cedrus check,
exclusivity is not tested and that flag is set also for progressive
references. That causes "jumpy" background with many videos.
Fix that by checking that only bottom reference flag is set in control
and nothing else.
Tested-by: Andre Heider <a.heider@gmail.com>
Fixes: cfc8c3ed533e ("media: cedrus: h264: Properly configure reference field")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: <stable@vger.kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The BIT macro is not available in userspace, so replace BIT(0) by
0x00000001.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 6446ec6cbf46 ("media: v4l2-subdev: add VIDIOC_SUBDEV_QUERYCAP ioctl")
Cc: <stable@vger.kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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We've got another report indicating a similar problem wrt the
power-saving behavior with VIA codec on Clevo machines. Let's apply
the existing workaround generically to all Clevo devices with VIA
codecs to cover all in once.
BugLink: https://bugzilla.opensuse.org/show_bug.cgi?id=1181330
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210126165603.11683-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Use correct kernel-doc notation for functions.
Add notation (comments) where it is missing.
Use the documented "Return:" notation for function return values.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Correct kernel-doc notation in HID header files (include/linux/hid*.h).
Add notation (comments) where it is missing.
Use the documented "Return:" notation for function return values.
Fix a few typos/spellos.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.11
More fixes for v5.11, almost all driver specific issues including new
device IDs - there's one error handling fix for the topology stuff too.
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The recent commit to fix a memory leak introduced an inadvertant NULL
pointer dereference. The `wacom_wac->pen_fifo` variable was never
intialized, resuling in a crash whenever functions tried to use it.
Since the FIFO is only used by AES pens (to buffer events from pen
proximity until the hardware reports the pen serial number) this would
have been easily overlooked without testing an AES device.
This patch converts `wacom_wac->pen_fifo` over to a pointer (since the
call to `devres_alloc` allocates memory for us) and ensures that we assign
it to point to the allocated and initalized `pen_fifo` before the function
returns.
Link: https://github.com/linuxwacom/input-wacom/issues/230
Fixes: 37309f47e2f5 ("HID: wacom: Fix memory leakage caused by kfifo_alloc")
CC: stable@vger.kernel.org # v4.19+
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Tested-by: Ping Cheng <ping.cheng@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Per Windows Precision Touchpad guidelines:
> The latency mode feature report is sent by the host to a Windows
> Precision Touchpad to indicate when high latency is desirable for
> power savings and, conversely, when normal latency is desired for
> operation.
>
> For USB-connected Windows Precision Touchpads, this enables the device
> to disambiguate between being suspended for inactivity (runtime IDLE)
> and being suspended because the system is entering S3 or Connected
> Standby.
The current implementation would set the latency to normal on device initialization,
but we didn't set the device to high latency on suspend.
Signed-off-by: Blaž Hrastnik <blaz@mxxn.io>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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VMX also uses KVM_REQ_GET_NESTED_STATE_PAGES for the Hyper-V eVMCS,
which may need to be loaded outside guest mode. Therefore we cannot
WARN in that case.
However, that part of nested_get_vmcs12_pages is _not_ needed at
vmentry time. Split it out of KVM_REQ_GET_NESTED_STATE_PAGES handling,
so that both vmentry and migration (and in the latter case, independent
of is_guest_mode) do the parts that are needed.
Cc: <stable@vger.kernel.org> # 5.10.x: f2c7ef3ba: KVM: nSVM: cancel KVM_REQ_GET_NESTED_STATE_PAGES
Cc: <stable@vger.kernel.org> # 5.10.x
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Revert the dirty/available tracking of GPRs now that KVM copies the GPRs
to the GHCB on any post-VMGEXIT VMRUN, even if a GPR is not dirty. Per
commit de3cd117ed2f ("KVM: x86: Omit caching logic for always-available
GPRs"), tracking for GPRs noticeably impacts KVM's code footprint.
This reverts commit 1c04d8c986567c27c56c05205dceadc92efb14ff.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210122235049.3107620-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Drop the per-GPR dirty checks when synchronizing GPRs to the GHCB, the
GRPs' dirty bits are set from time zero and never cleared, i.e. will
always be seen as dirty. The obvious alternative would be to clear
the dirty bits when appropriate, but removing the dirty checks is
desirable as it allows reverting GPR dirty+available tracking, which
adds overhead to all flavors of x86 VMs.
Note, unconditionally writing the GPRs in the GHCB is tacitly allowed
by the GHCB spec, which allows the hypervisor (or guest) to provide
unnecessary info; it's the guest's responsibility to consume only what
it needs (the hypervisor is untrusted after all).
The guest and hypervisor can supply additional state if desired but
must not rely on that additional state being provided.
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Fixes: 291bd20d5d88 ("KVM: SVM: Add initial support for a VMGEXIT VMEXIT")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210122235049.3107620-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Even when we are outside the nested guest, some vmcs02 fields
may not be in sync vs vmcs12. This is intentional, even across
nested VM-exit, because the sync can be delayed until the nested
hypervisor performs a VMCLEAR or a VMREAD/VMWRITE that affects those
rarely accessed fields.
However, during KVM_GET_NESTED_STATE, the vmcs12 has to be up to date to
be able to restore it. To fix that, call copy_vmcs02_to_vmcs12_rare()
before the vmcs12 contents are copied to userspace.
Fixes: 7952d769c29ca ("KVM: nVMX: Sync rarely accessed guest fields only when needed")
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210114205449.8715-2-mlevitsk@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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On VMX, if we exit and then re-enter immediately without leaving
the vmx_vcpu_run() function, the kvm_entry event is not logged.
That means we will see one (or more) kvm_exit, without its (their)
corresponding kvm_entry, as shown here:
CPU-1979 [002] 89.871187: kvm_entry: vcpu 1
CPU-1979 [002] 89.871218: kvm_exit: reason MSR_WRITE
CPU-1979 [002] 89.871259: kvm_exit: reason MSR_WRITE
It also seems possible for a kvm_entry event to be logged, but then
we leave vmx_vcpu_run() right away (if vmx->emulation_required is
true). In this case, we will have a spurious kvm_entry event in the
trace.
Fix these situations by moving trace_kvm_entry() inside vmx_vcpu_run()
(where trace_kvm_exit() already is).
A trace obtained with this patch applied looks like this:
CPU-14295 [000] 8388.395387: kvm_entry: vcpu 0
CPU-14295 [000] 8388.395392: kvm_exit: reason MSR_WRITE
CPU-14295 [000] 8388.395393: kvm_entry: vcpu 0
CPU-14295 [000] 8388.395503: kvm_exit: reason EXTERNAL_INTERRUPT
Of course, not calling trace_kvm_entry() in common x86 code any
longer means that we need to adjust the SVM side of things too.
Signed-off-by: Lorenzo Brescia <lorenzo.brescia@edu.unito.it>
Signed-off-by: Dario Faggioli <dfaggioli@suse.com>
Message-Id: <160873470698.11652.13483635328769030605.stgit@Wayrath>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Update various words, including the wrong parameter name and the vague
description of the usage of "slot" field.
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Message-Id: <20201208043439.895-1-yuzenghui@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The injection process of smi has two steps:
Qemu KVM
Step1:
cpu->interrupt_request &= \
~CPU_INTERRUPT_SMI;
kvm_vcpu_ioctl(cpu, KVM_SMI)
call kvm_vcpu_ioctl_smi() and
kvm_make_request(KVM_REQ_SMI, vcpu);
Step2:
kvm_vcpu_ioctl(cpu, KVM_RUN, 0)
call process_smi() if
kvm_check_request(KVM_REQ_SMI, vcpu) is
true, mark vcpu->arch.smi_pending = true;
The vcpu->arch.smi_pending will be set true in step2, unfortunately if
vcpu paused between step1 and step2, the kvm_run->immediate_exit will be
set and vcpu has to exit to Qemu immediately during step2 before mark
vcpu->arch.smi_pending true.
During VM migration, Qemu will get the smi pending status from KVM using
KVM_GET_VCPU_EVENTS ioctl at the downtime, then the smi pending status
will be lost.
Signed-off-by: Jay Zhou <jianjay.zhou@huawei.com>
Signed-off-by: Shengen Zhuang <zhuangshengen@huawei.com>
Message-Id: <20210118084720.1585-1-jianjay.zhou@huawei.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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