Commit Graph

1059927 Commits

Author SHA1 Message Date
Jiri Kosina
f771656344 Merge branch 'for-5.17/magicmouse' into for-linus
- proper batter reporting for hid-magicmouse USB-connected devices (José Expósito)
2022-01-10 09:58:34 +01:00
Jiri Kosina
50ae0cfc28 Merge branch 'for-5.17/logitech' into for-linus
- add Filipe Laíns as a code reviewer for hid-logitech family of drivers
2022-01-10 09:57:51 +01:00
Jiri Kosina
3551a3ff82 Merge branch 'for-5.17/letsketch' into for-linus
- new driver to support for LetSketch device (Hans de Goede)
2022-01-10 09:56:57 +01:00
Jiri Kosina
906095af85 Merge branch 'for-5.17/i2c-hid' into for-linus
- PM wakeup support for i2c-hid driver (Matthias Kaehlcke)
2022-01-10 09:56:27 +01:00
Jiri Kosina
c524559acd Merge branch 'for-5.17/hidraw' into for-linus
- locking performance improvement for hidraw code (André Almeida)
2022-01-10 09:55:44 +01:00
Jiri Kosina
fce0d27584 Merge branch 'for-5.17/apple' into for-linus
- Apple Magic Keyboard support improvements (José Expósito, Alex Henrie,
  Benjamin Berg)
2022-01-10 09:54:31 +01:00
Jiri Kosina
8a2094d679 Merge branch 'for-5.17/core' into for-linus
- support for USI style pens (Tero Kristo, Mika Westerberg)
- quirk for devices that need inverted X/Y axes (Alistair Francis)
- small core code cleanups and deduplication (Benjamin Tissoires)
2022-01-10 09:49:13 +01:00
Christophe JAILLET
33812fc7c8 HID: magicmouse: Fix an error handling path in magicmouse_probe()
If the timer introduced by the commit below is started, then it must be
deleted in the error handling of the probe. Otherwise it would trigger
once the driver is no more.

Fixes: 0b91b4e4da ("HID: magicmouse: Report battery level over USB")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Tested-by: José Expósito <jose.exposito89@gmail.com>
Reported-by: <syzbot+a437546ec71b04dfb5ac@syzkaller.appspotmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 15:39:55 +01:00
Lukas Bulwahn
3809fe4798 HID: address kernel-doc warnings
The command ./scripts/kernel-doc -none include/linux/hid.h reports:

  include/linux/hid.h:818: warning: cannot understand function prototype: 'struct hid_ll_driver '
  include/linux/hid.h:1135: warning: expecting prototype for hid_may_wakeup(). Prototype was for hid_hw_may_wakeup() instead

Address those kernel-doc warnings.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 15:39:43 +01:00
Yang Li
98b6b62cd5 HID: intel-ish-hid: ishtp-fw-loader: Fix a kernel-doc formatting issue
This function had kernel-doc that not used a hash to separate
the function name from the one line description.

The warning was found by running scripts/kernel-doc, which is
caused by using 'make W=1'.

drivers/hid/intel-ish-hid/ishtp-fw-loader.c:271: warning: This comment
starts with '/**', but isn't a kernel-doc comment. Refer
Documentation/doc-guide/kernel-doc.rst

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 15:39:43 +01:00
Ye Xiang
bcad6d1bd9 HID: intel-ish-hid: ipc: Specify no cache snooping on TGL and ADL
Specify that both TGL and ADL don't support DMA cache snooping.

Signed-off-by: Ye Xiang <xiang.ye@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 15:39:43 +01:00
José Expósito
aa320fdbbb HID: hid-uclogic-params: Invalid parameter check in uclogic_params_frame_init_v1_buttonpad
The function performs a check on the hdev input parameters, however, it
is used before the check.

Initialize the udev variable after the sanity check to avoid a
possible NULL pointer dereference.

Fixes: 9614219e93 ("HID: uclogic: Extract tablet parameter discovery into a module")
Addresses-Coverity-ID: 1443763 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 15:39:43 +01:00
José Expósito
ff6b548afe HID: hid-uclogic-params: Invalid parameter check in uclogic_params_huion_init
The function performs a check on its input parameters, however, the
hdev parameter is used before the check.

Initialize the stack variables after checking the input parameters to
avoid a possible NULL pointer dereference.

Fixes: 9614219e93 ("HID: uclogic: Extract tablet parameter discovery into a module")
Addresses-Coverity-ID: 1443804 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 15:39:43 +01:00
José Expósito
0a94131d69 HID: hid-uclogic-params: Invalid parameter check in uclogic_params_get_str_desc
The function performs a check on the hdev input parameters, however, it
is used before the check.

Initialize the udev variable after the sanity check to avoid a
possible NULL pointer dereference.

Fixes: 9614219e93 ("HID: uclogic: Extract tablet parameter discovery into a module")
Addresses-Coverity-ID: 1443827 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 15:39:43 +01:00
José Expósito
f364c571a5 HID: hid-uclogic-params: Invalid parameter check in uclogic_params_init
The function performs a check on its input parameters, however, the
hdev parameter is used before the check.

Initialize the stack variables after checking the input parameters to
avoid a possible NULL pointer dereference.

Fixes: 9614219e93 ("HID: uclogic: Extract tablet parameter discovery into a module")
Addresses-Coverity-ID: 1443831 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 15:39:43 +01:00
Hans de Goede
33a5c27934 HID: Add new Letsketch tablet driver
Add a new driver for the LetSketch / VSON WP9620N drawing tablet. This
drawing tablet is also sold under other brand names such as Case U,
presumably this driver will work for all of them. But it has only been
tested with a LetSketch WP9620N model.

These tablets also work without a special HID driver, but then only
part of the active area works and both the pad and stylus buttons are
hardwired to special key-combos. E.g. the 2 stylus buttons send right
mouse clicks / resp. "e" key presses.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=2005575
BugLink: https://github.com/DIGImend/digimend-kernel-drivers/issues/528
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 14:22:51 +01:00
José Expósito
7f84e2439e HID: apple: Add Magic Keyboard 2021 with fingerprint reader FN key mapping
Use the function key table introduced for the Magic Keyboard 2021
without fingerprint reader in the models with fingerprint reader and/or
numpad.

Tested with the ANSI variant of the keyboard with and without numpad.

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 14:01:32 +01:00
Benjamin Berg
531cb56972 HID: apple: Add 2021 magic keyboard FN key mapping
The new 2021 apple models have a different FN key assignment. Add a new
translation table and use that for the 2021 magic keyboard.

Signed-off-by: Benjamin Berg <bberg@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 14:01:28 +01:00
José Expósito
5768701edc HID: magicmouse: set Magic Trackpad 2021 name
The Apple Magic Trackpad 2021 (3rd generation) has the same product ID
as the 2nd generation. However, when connected through Bluetooth, the
version has changed from 0x107 to 0x110.

The other meaningful change is that the name has dropped the generation
number and now it is just "Apple Inc. Magic Trackpad", like the first
generation model.

Set the device name correctly to ensure the same driver settings are
loaded, whether connected via Bluetooth or USB.

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 13:58:29 +01:00
José Expósito
0aa45fcc42 HID: magicmouse: set device name when it has been personalized
If the Apple Magic Trackpad 2 has been connected to a Mac, the name
is automatically personalized showing its owner name. For example:
"José Expósito's Trackpad".

When connected through Bluetooth, the personalized name is reported,
however, when connected through USB the generic name is reported.

Set the device name correctly to ensure the same driver settings are
loaded, whether connected via Bluetooth or USB.

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 13:58:28 +01:00
Alex Henrie
b2dcadef20 HID: apple: Add 2021 Magic Keyboard with number pad
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 13:57:24 +01:00
Alex Henrie
9f92d61f01 HID: apple: Add 2021 Magic Keyboard with fingerprint reader
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Tested-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-06 13:57:24 +01:00
Linus Torvalds
1c3e979bf3 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:

 - NULL pointer dereference fix in Vivaldi driver (Jiasheng Jiang)

 - regression fix for device probing in Holtek driver (Benjamin
   Tissoires)

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: potential dereference of null pointer
  HID: holtek: fix mouse probing
2021-12-21 09:30:32 -08:00
Linus Torvalds
6e0567b730 RDMA v5.16 third rc pull request
Last fixes before holidays:
 
 - Work around a HW bug in HNS HIP08
 
 - Recent memory leak regression in qib
 
 - Incorrect use of kfree() for vmalloc memory in hns
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "Last fixes before holidays. Nothing very exciting:

   - Work around a HW bug in HNS HIP08

   - Recent memory leak regression in qib

   - Incorrect use of kfree() for vmalloc memory in hns"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/hns: Replace kfree() with kvfree()
  IB/qib: Fix memory leak in qib_user_sdma_queue_pkts()
  RDMA/hns: Fix RNR retransmission issue for HIP08
2021-12-20 17:26:42 -08:00
Linus Torvalds
86085fe79e spi: Fix for v5.16
One small fix for a long standing issue with error handling on probe in
 the Armada driver.
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Merge tag 'spi-fix-v5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fix from Mark Brown:
 "One small fix for a long standing issue with error handling on probe
  in the Armada driver"

* tag 'spi-fix-v5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: change clk_disable_unprepare to clk_unprepare
2021-12-20 10:23:19 -08:00
Linus Torvalds
3856c1b398 regulator: Binding fix for v5.16
This fixes problems validating DT bindings using op_mode which wasn't
 described as it should have been when converting to DT schema.
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Merge tag 'regulator-fix-v5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "Binding fix for v5.16

  This fixes problems validating DT bindings using op_mode which wasn't
  described as it should have been when converting to DT schema"

* tag 'regulator-fix-v5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: dt-bindings: samsung,s5m8767: add missing op_mode to bucks
2021-12-20 10:13:30 -08:00
Linus Torvalds
59b3f94488 Merge branch 'xsa' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Merge xen fixes from Juergen Gross:
 "Fixes for two issues related to Xen and malicious guests:

   - Guest can force the netback driver to hog large amounts of memory

   - Denial of Service in other guests due to event storms"

* 'xsa' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/netback: don't queue unlimited number of packages
  xen/netback: fix rx queue stall detection
  xen/console: harden hvc_xen against event channel storms
  xen/netfront: harden netfront against event channel storms
  xen/blkfront: harden blkfront against event channel storms
2021-12-20 07:42:21 -08:00
Jiasheng Jiang
13251ce1dd HID: potential dereference of null pointer
The return value of devm_kzalloc() needs to be checked.
To avoid hdev->dev->driver_data to be null in case of the failure of
alloc.

Fixes: 14c9c014ba ("HID: add vivaldi HID driver")
Cc: stable@vger.kernel.org
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211215083605.117638-1-jiasheng@iscas.ac.cn
2021-12-20 11:26:14 +01:00
Benjamin Tissoires
93a2207c25 HID: holtek: fix mouse probing
An overlook from the previous commit: we don't even parse or start the
device, meaning that the device is not presented to user space.

Fixes: 93020953d0 ("HID: check for valid USB device for many HID drivers")
Cc: stable@vger.kernel.org
Link: https://bugs.archlinux.org/task/73048
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215341
Link: https://lore.kernel.org/r/e4efbf13-bd8d-0370-629b-6c80c0044b15@leemhuis.info/
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2021-12-20 11:25:42 +01:00
Linus Torvalds
a7904a5389 Linux 5.16-rc6 2021-12-19 14:14:33 -08:00
Linus Torvalds
f291e2d899 Two small fixes, one of which was being worked around in selftests.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "Two small fixes, one of which was being worked around in selftests"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Retry page fault if MMU reload is pending and root has no sp
  KVM: selftests: vmx_pmu_msrs_test: Drop tests mangling guest visible CPUIDs
  KVM: x86: Drop guest CPUID check for host initiated writes to MSR_IA32_PERF_CAPABILITIES
2021-12-19 12:44:03 -08:00
Linus Torvalds
2da09da4ae block-5.16-2021-12-19
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Merge tag 'block-5.16-2021-12-19' of git://git.kernel.dk/linux-block

Pull block revert from Jens Axboe:
 "It turns out that the fix for not hammering on the delayed work timer
  too much caused a performance regression for BFQ, so let's revert the
  change for now.

  I've got some ideas on how to fix it appropriately, but they should
  wait for 5.17"

* tag 'block-5.16-2021-12-19' of git://git.kernel.dk/linux-block:
  Revert "block: reduce kblockd_mod_delayed_work_on() CPU consumption"
2021-12-19 12:38:53 -08:00
Linus Torvalds
a76c3d0358 - Clear the PCI_MSIX_FLAGS_MASKALL bit too on the error path so that it
is restored to its reset state
 
 - Mask MSI-X vectors late on the init path in order to handle
 out-of-spec Marvell NVME devices which apparently look at the MSI-X mask
 even when MSI-X is disabled
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Merge tag 'irq_urgent_for_v5.16_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Borislav Petkov:

 - Clear the PCI_MSIX_FLAGS_MASKALL bit too on the error path so that it
   is restored to its reset state

 - Mask MSI-X vectors late on the init path in order to handle
   out-of-spec Marvell NVME devices which apparently look at the MSI-X
   mask even when MSI-X is disabled

* tag 'irq_urgent_for_v5.16_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  PCI/MSI: Clear PCI_MSIX_FLAGS_MASKALL on error
  PCI/MSI: Mask MSI-X vectors only on success
2021-12-19 12:28:46 -08:00
Linus Torvalds
e1fe1b10e6 - Make sure the CLOCK_REALTIME to CLOCK_MONOTONIC offset is never positive
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Merge tag 'timers_urgent_for_v5.16_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fix from Borislav Petkov:

 - Make sure the CLOCK_REALTIME to CLOCK_MONOTONIC offset is never
   positive

* tag 'timers_urgent_for_v5.16_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timekeeping: Really make sure wall_to_monotonic isn't positive
2021-12-19 12:23:18 -08:00
Linus Torvalds
909e1d166c - Fix the condition checking when the optimistic spinning of a waiter needs
to be terminated
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Merge tag 'locking_urgent_for_v5.16_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fix from Borislav Petkov:

 - Fix the rtmutex condition checking when the optimistic spinning of a
   waiter needs to be terminated

* tag 'locking_urgent_for_v5.16_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/rtmutex: Fix incorrect condition in rtmutex_spin_on_owner()
2021-12-19 12:17:26 -08:00
Linus Torvalds
c36d891d78 - Prevent lock contention on the new sigaltstack lock on the common-case
path, when no changes have been made to the alternative signal stack.
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Merge tag 'core_urgent_for_v5.16_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull signal handlign fix from Borislav Petkov:

 - Prevent lock contention on the new sigaltstack lock on the
   common-case path, when no changes have been made to the alternative
   signal stack.

* tag 'core_urgent_for_v5.16_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  signal: Skip the altstack update when not needed
2021-12-19 11:46:54 -08:00
Linus Torvalds
a4cc5ea443 - only enable pci_remap_iospace() for Ralink devices
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Merge tag 'mips-fixes_5.16_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fix from Thomas Bogendoerfer:

 - only enable pci_remap_iospace() for Ralink devices

* tag 'mips-fixes_5.16_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: Only define pci_remap_iospace() for Ralink
2021-12-19 11:40:11 -08:00
Linus Torvalds
713ab911f2 powerpc fixes for 5.16 #4
Fix a recently introduced oops at boot on 85xx in some configurations.
 
 Fix crashes when loading some livepatch modules with STRICT_MODULE_RWX.
 
 Thanks to: Joe Lawrence, Russell Currey, Xiaoming Ni.
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Merge tag 'powerpc-5.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "Fix a recently introduced oops at boot on 85xx in some configurations.

  Fix crashes when loading some livepatch modules with
  STRICT_MODULE_RWX.

  Thanks to Joe Lawrence, Russell Currey, and Xiaoming Ni"

* tag 'powerpc-5.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/module_64: Fix livepatching for RO modules
  powerpc/85xx: Fix oops when CONFIG_FSL_PMC=n
2021-12-19 11:31:14 -08:00
Linus Torvalds
9273d6cb99 two cifs/smb3 fixes, one fscache related, and one mount parsing related for stable
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Merge tag '5.16-rc5-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Two cifs/smb3 fixes, one fscache related, and one mount parsing
  related for stable"

* tag '5.16-rc5-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: sanitize multiple delimiters in prepath
  cifs: ignore resource_id while getting fscache super cookie
2021-12-19 11:23:02 -08:00
Sean Christopherson
18c841e1f4 KVM: x86: Retry page fault if MMU reload is pending and root has no sp
Play nice with a NULL shadow page when checking for an obsolete root in
the page fault handler by flagging the page fault as stale if there's no
shadow page associated with the root and KVM_REQ_MMU_RELOAD is pending.
Invalidating memslots, which is the only case where _all_ roots need to
be reloaded, requests all vCPUs to reload their MMUs while holding
mmu_lock for lock.

The "special" roots, e.g. pae_root when KVM uses PAE paging, are not
backed by a shadow page.  Running with TDP disabled or with nested NPT
explodes spectaculary due to dereferencing a NULL shadow page pointer.

Skip the KVM_REQ_MMU_RELOAD check if there is a valid shadow page for the
root.  Zapping shadow pages in response to guest activity, e.g. when the
guest frees a PGD, can trigger KVM_REQ_MMU_RELOAD even if the current
vCPU isn't using the affected root.  I.e. KVM_REQ_MMU_RELOAD can be seen
with a completely valid root shadow page.  This is a bit of a moot point
as KVM currently unloads all roots on KVM_REQ_MMU_RELOAD, but that will
be cleaned up in the future.

Fixes: a955cad84c ("KVM: x86/mmu: Retry page fault if root is invalidated by memslot update")
Cc: stable@vger.kernel.org
Cc: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211209060552.2956723-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-12-19 19:38:58 +01:00
Vitaly Kuznetsov
0b091a43d7 KVM: selftests: vmx_pmu_msrs_test: Drop tests mangling guest visible CPUIDs
Host initiated writes to MSR_IA32_PERF_CAPABILITIES should not depend
on guest visible CPUIDs and (incorrect) KVM logic implementing it is
about to change. Also, KVM_SET_CPUID{,2} after KVM_RUN is now forbidden
and causes test to fail.

Reported-by: kernel test robot <oliver.sang@intel.com>
Fixes: feb627e8d6 ("KVM: x86: Forbid KVM_SET_CPUID{,2} after KVM_RUN")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20211216165213.338923-2-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-12-19 19:35:29 +01:00
Vitaly Kuznetsov
1aa2abb33a KVM: x86: Drop guest CPUID check for host initiated writes to MSR_IA32_PERF_CAPABILITIES
The ability to write to MSR_IA32_PERF_CAPABILITIES from the host should
not depend on guest visible CPUID entries, even if just to allow
creating/restoring guest MSRs and CPUIDs in any sequence.

Fixes: 27461da310 ("KVM: x86/pmu: Support full width counting")
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20211216165213.338923-3-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-12-19 19:35:18 +01:00
Jens Axboe
87959fa16c Revert "block: reduce kblockd_mod_delayed_work_on() CPU consumption"
This reverts commit cb2ac2912a.

Alex and the kernel test robot report that this causes a significant
performance regression with BFQ. I can reproduce that result, so let's
revert this one as we're close to -rc6 and we there's no point in trying
to rush a fix.

Link: https://lore.kernel.org/linux-block/1639853092.524jxfaem2.none@localhost/
Link: https://lore.kernel.org/lkml/20211219141852.GH14057@xsang-OptiPlex-9020/
Reported-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca>
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-12-19 07:58:44 -07:00
Linus Torvalds
3f667b5d40 TTY/Serial fixes for 5.16-rc6
Here are 2 small tty/serial fixes for 5.16-rc6.  They include:
 	- n_hdlc fix for syzbot reported problem that you were
 	  previously copied on.
 	- 8250_fintek driver fix that resolved a console problem by
 	  removing a previous change.
 
 Both have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
 "Here are two small tty/serial fixes for 5.16-rc6.  They include:

   - n_hdlc fix for syzbot reported problem that you were previously
     copied on.

   - 8250_fintek driver fix that resolved a console problem by removing
     a previous change.

  Both have been in linux-next with no reported issues"

* tag 'tty-5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serial: 8250_fintek: Fix garbled text for console
  tty: n_hdlc: make n_hdlc_tty_wakeup() asynchronous
2021-12-18 13:23:55 -08:00
Linus Torvalds
fb7d082913 USB fixes for 5.16-rc6
Here are a number of small USB driver fixes for reported problems for
 5.16-rc6.  They include:
 	- dwc2 driver fixes
 	- xhci driver fixes
 	- cdnsp driver fixes
 	- typec driver fix
 	- gadget u_ether driver fix
 	- new quirk additions
 	- usb gadget endpoint calculation fix
 	- usb serial new device ids
 	- revert of a xhci-dbg change that broke early debug booting
 
 All changes, except for the revert, have been in linux-next with no
 reported problems.  The revert was from yesterday, and it was reported
 by the developers affected that it resolved their problem.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are a number of small USB driver fixes for reported problems.
  They include:

   - dwc2 driver fixes

   - xhci driver fixes

   - cdnsp driver fixes

   - typec driver fix

   - gadget u_ether driver fix

   - new quirk additions

   - usb gadget endpoint calculation fix

   - usb serial new device ids

   - revert of a xhci-dbg change that broke early debug booting

  All changes, except for the revert, have been in linux-next with no
  reported problems. The revert was from yesterday, and it was reported
  by the developers affected that it resolved their problem"

* tag 'usb-5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  Revert "usb: early: convert to readl_poll_timeout_atomic()"
  usb: typec: tcpm: fix tcpm unregister port but leave a pending timer
  usb: cdnsp: Fix lack of spin_lock_irqsave/spin_lock_restore
  USB: NO_LPM quirk Lenovo USB-C to Ethernet Adapher(RTL8153-04)
  usb: xhci: Extend support for runtime power management for AMD's Yellow carp.
  usb: dwc2: fix STM ID/VBUS detection startup delay in dwc2_driver_probe
  USB: gadget: bRequestType is a bitfield, not a enum
  USB: serial: option: add Telit FN990 compositions
  USB: serial: cp210x: fix CP2105 GPIO registration
  usb: cdnsp: Fix incorrect status for control request
  usb: cdnsp: Fix issue in cdnsp_log_ep trace event
  usb: cdnsp: Fix incorrect calling of cdnsp_died function
  usb: xhci-mtk: fix list_del warning when enable list debug
  usb: gadget: u_ether: fix race in setting MAC address in setup phase
2021-12-18 13:16:43 -08:00
Linus Torvalds
0f03adcca7 perf tools fixes for v5.16: 4th batch
- Fix segfaults in 'perf inject' related to usage of unopened files.
 
 - The return value of hashmap__new() should be checked using IS_ERR().
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.16-2021-12-18' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix segfaults in 'perf inject' related to usage of unopened files

 - The return value of hashmap__new() should be checked using IS_ERR()

* tag 'perf-tools-fixes-for-v5.16-2021-12-18' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf inject: Fix segfault due to perf_data__fd() without open
  perf inject: Fix segfault due to close without open
  perf expr: Fix missing check for return value of hashmap__new()
2021-12-18 11:53:14 -08:00
Adrian Hunter
c271a55b0c perf inject: Fix segfault due to perf_data__fd() without open
The fixed commit attempts to get the output file descriptor even if the
file was never opened e.g.

  $ perf record uname
  Linux
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.002 MB perf.data (7 samples) ]
  $ perf inject -i perf.data --vm-time-correlation=dry-run
  Segmentation fault (core dumped)
  $ gdb --quiet perf
  Reading symbols from perf...
  (gdb) r inject -i perf.data --vm-time-correlation=dry-run
  Starting program: /home/ahunter/bin/perf inject -i perf.data --vm-time-correlation=dry-run
  [Thread debugging using libthread_db enabled]
  Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

  Program received signal SIGSEGV, Segmentation fault.
  __GI___fileno (fp=0x0) at fileno.c:35
  35      fileno.c: No such file or directory.
  (gdb) bt
  #0  __GI___fileno (fp=0x0) at fileno.c:35
  #1  0x00005621e48dd987 in perf_data__fd (data=0x7fff4c68bd08) at util/data.h:72
  #2  perf_data__fd (data=0x7fff4c68bd08) at util/data.h:69
  #3  cmd_inject (argc=<optimized out>, argv=0x7fff4c69c1f0) at builtin-inject.c:1017
  #4  0x00005621e4936783 in run_builtin (p=0x5621e4ee6878 <commands+600>, argc=4, argv=0x7fff4c69c1f0) at perf.c:313
  #5  0x00005621e4897d5c in handle_internal_command (argv=<optimized out>, argc=<optimized out>) at perf.c:365
  #6  run_argv (argcp=<optimized out>, argv=<optimized out>) at perf.c:409
  #7  main (argc=4, argv=0x7fff4c69c1f0) at perf.c:539
  (gdb)

Fixes: 0ae0389362 ("perf tools: Pass a fd to perf_file_header__read_pipe()")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: stable@vger.kernel.org
Link: http://lore.kernel.org/lkml/20211213084829.114772-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-18 08:31:14 -03:00
Adrian Hunter
0c8e32fe48 perf inject: Fix segfault due to close without open
The fixed commit attempts to close inject.output even if it was never
opened e.g.

  $ perf record uname
  Linux
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.002 MB perf.data (7 samples) ]
  $ perf inject -i perf.data --vm-time-correlation=dry-run
  Segmentation fault (core dumped)
  $ gdb --quiet perf
  Reading symbols from perf...
  (gdb) r inject -i perf.data --vm-time-correlation=dry-run
  Starting program: /home/ahunter/bin/perf inject -i perf.data --vm-time-correlation=dry-run
  [Thread debugging using libthread_db enabled]
  Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

  Program received signal SIGSEGV, Segmentation fault.
  0x00007eff8afeef5b in _IO_new_fclose (fp=0x0) at iofclose.c:48
  48      iofclose.c: No such file or directory.
  (gdb) bt
  #0  0x00007eff8afeef5b in _IO_new_fclose (fp=0x0) at iofclose.c:48
  #1  0x0000557fc7b74f92 in perf_data__close (data=data@entry=0x7ffcdafa6578) at util/data.c:376
  #2  0x0000557fc7a6b807 in cmd_inject (argc=<optimized out>, argv=<optimized out>) at builtin-inject.c:1085
  #3  0x0000557fc7ac4783 in run_builtin (p=0x557fc8074878 <commands+600>, argc=4, argv=0x7ffcdafb6a60) at perf.c:313
  #4  0x0000557fc7a25d5c in handle_internal_command (argv=<optimized out>, argc=<optimized out>) at perf.c:365
  #5  run_argv (argcp=<optimized out>, argv=<optimized out>) at perf.c:409
  #6  main (argc=4, argv=0x7ffcdafb6a60) at perf.c:539
  (gdb)

Fixes: 02e6246f53 ("perf inject: Close inject.output on exit")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: stable@vger.kernel.org
Link: http://lore.kernel.org/lkml/20211213084829.114772-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-18 08:31:14 -03:00
Miaoqian Lin
0a515a06c5 perf expr: Fix missing check for return value of hashmap__new()
The hashmap__new() function may return ERR_PTR(-ENOMEM) when malloc()
fails, add IS_ERR() checking for ctx->ids.

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20211212062504.25841-1-linmq006@gmail.com
[ s/kfree()/free()/ and add missing linux/err.h include ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-18 08:31:14 -03:00
Zqiang
8f556a326c locking/rtmutex: Fix incorrect condition in rtmutex_spin_on_owner()
Optimistic spinning needs to be terminated when the spinning waiter is not
longer the top waiter on the lock, but the condition is negated. It
terminates if the waiter is the top waiter, which is defeating the whole
purpose.

Fixes: c3123c4314 ("locking/rtmutex: Dont dereference waiter lockless")
Signed-off-by: Zqiang <qiang1.zhang@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211217074207.77425-1-qiang1.zhang@intel.com
2021-12-18 10:55:51 +01:00