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  1. 09 Aug, 2021 22 commits
  3. 08 Aug, 2021 9 commits
    • Linus Torvalds's avatar
      Linux 5.14-rc5 · 36a21d51
      Linus Torvalds authored
      36a21d51
    • Linus Torvalds's avatar
      Merge tag 'timers-urgent-2021-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · cceb6347
      Linus Torvalds authored 
      Pull timer fix from Thomas Gleixner:
 "A single timer fix:

   - Prevent a memory ordering issue in the timer expiry code which
     makes it possible to observe falsely that the callback has been
     executed already while that's not the case, which violates the
     guarantee of del_timer_sync()"

* tag 'timers-urgent-2021-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timers: Move clearing of base::timer_running under base:: Lock
      cceb6347
    • Linus Torvalds's avatar
      Merge tag 'sched-urgent-2021-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 713f0f37
      Linus Torvalds authored 
      Pull scheduler fix from Thomas Gleixner:
 "A single scheduler fix:

   - Prevent a double enqueue caused by rt_effective_prio() being
     invoked twice in __sched_setscheduler()"

* tag 'sched-urgent-2021-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/rt: Fix double enqueue caused by rt_effective_prio
      713f0f37
    • Linus Torvalds's avatar
      Merge tag 'perf-urgent-2021-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 74eedeba
      Linus Torvalds authored 
      Pull perf fixes from Thomas Gleixner:
 "A set of perf fixes:

   - Correct the permission checks for perf event which send SIGTRAP to
     a different process and clean up that code to be more readable.

   - Prevent an out of bound MSR access in the x86 perf code which
     happened due to an incomplete limiting to the actually available
     hardware counters.

   - Prevent access to the AMD64_EVENTSEL_HOSTONLY bit when running
     inside a guest.

   - Handle small core counter re-enabling correctly by issuing an ACK
     right before reenabling it to prevent a stale PEBS record being
     kept around"

* tag 'perf-urgent-2021-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel: Apply mid ACK for small core
  perf/x86/amd: Don't touch the AMD64_EVENTSEL_HOSTONLY bit inside the guest
  perf/x86: Fix out of bound MSR access
  perf: Refactor permissions check into perf_check_permission()
  perf: Fix required permissions if sigtrap is requested
      74eedeba
    • Linus Torvalds's avatar
      Merge tag 'char-misc-5.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · 66745863
      Linus Torvalds authored 
      Pull char/misc driver fixes from Greg KH:
 "Here are some small char/misc driver fixes for 5.14-rc5.

  They resolve a few regressions that people reported:

   - acrn driver fix

   - fpga driver fix

   - interconnect tiny driver fixes

  All have been in linux-next for a while with no reported issues"

* tag 'char-misc-5.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  interconnect: Fix undersized devress_alloc allocation
  interconnect: qcom: icc-rpmh: Add BCMs to commit list in pre_aggregate
  interconnect: qcom: icc-rpmh: Ensure floor BW is enforced for all nodes
  fpga: dfl: fme: Fix cpu hotplug issue in performance reporting
  virt: acrn: Do hcall_destroy_vm() before resource release
  interconnect: Always call pre_aggregate before aggregate
  interconnect: Zero initial BW after sync-state
      66745863
    • Linus Torvalds's avatar
      Merge tag 'driver-core-5.14-rc5' of... · 289ef7be
      Linus Torvalds authored 
      Merge tag 'driver-core-5.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are three tiny driver core and firmware loader fixes for
  5.14-rc5. They are:

   - driver core fix for when probing fails

   - firmware loader fixes for reported problems.

  All have been in linux-next for a while with no reported issues"

* tag 'driver-core-5.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  firmware_loader: fix use-after-free in firmware_fallback_sysfs
  firmware_loader: use -ETIMEDOUT instead of -EAGAIN in fw_load_sysfs_fallback
  drivers core: Fix oops when driver probe fails
      289ef7be
    • Linus Torvalds's avatar
      Merge tag 'staging-5.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · 911c3c5e
      Linus Torvalds authored 
      Pull staging driver fixes from Greg KH:
 "Here are a few small staging driver fixes for 5.14-rc5 to resolve some
  reported problems. They include:

   - mt7621 driver fix

   - rtl8723bs driver fixes

   - rtl8712 driver fixes.

  Nothing major, just small problems resolved.

  All have been in linux-next for a while with no reported issues"

* tag 'staging-5.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: mt7621-pci: avoid to re-disable clock for those pcies not in use
  staging: rtl8712: error handling refactoring
  staging: rtl8712: get rid of flush_scheduled_work
  staging: rtl8723bs: select CONFIG_CRYPTO_LIB_ARC4
  staging: rtl8723bs: Fix a resource leak in sd_int_dpc
      911c3c5e
    • Linus Torvalds's avatar
      Merge tag 'tty-5.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · 6463e54c
      Linus Torvalds authored 
      Pull tty/serial fixes from Greg KH:
 "Here are some small tty/serial driver fixes for 5.14-rc5 to resolve a
  number of reported problems.

  They include:

   - mips serial driver fixes

   - 8250 driver fixes for reported problems

   - fsl_lpuart driver fixes

   - other tiny driver fixes

  All have been in linux-next for a while with no reported problems"

* tag 'tty-5.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serial: 8250_pci: Avoid irq sharing for MSI(-X) interrupts.
  serial: 8250_mtk: fix uart corruption issue when rx power off
  tty: serial: fsl_lpuart: fix the wrong return value in lpuart32_get_mctrl
  serial: 8250_pci: Enumerate Elkhart Lake UARTs via dedicated driver
  serial: 8250: fix handle_irq locking
  serial: tegra: Only print FIFO error message when an error occurs
  MIPS: Malta: Do not byte-swap accesses to the CBUS UART
  serial: 8250: Mask out floating 16/32-bit bus bits
  serial: max310x: Unprepare and disable clock in error path
      6463e54c
    • Linus Torvalds's avatar
      Merge tag 'usb-5.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 6a655547
      Linus Torvalds authored 
      Pull USB driver fixes from Greg KH:
 "Here are some small USB driver fixes for 5.14-rc5. They resolve a
  number of small reported issues, including:

   - cdnsp driver fixes

   - usb serial driver fixes and device id updates

   - usb gadget hid fixes

   - usb host driver fixes

   - usb dwc3 driver fixes

   - other usb gadget driver fixes

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-5.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (21 commits)
  usb: typec: tcpm: Keep other events when receiving FRS and Sourcing_vbus events
  usb: dwc3: gadget: Avoid runtime resume if disabling pullup
  usb: dwc3: gadget: Use list_replace_init() before traversing lists
  USB: serial: ftdi_sio: add device ID for Auto-M3 OP-COM v2
  USB: serial: pl2303: fix GT type detection
  USB: serial: option: add Telit FD980 composition 0x1056
  USB: serial: pl2303: fix HX type detection
  USB: serial: ch341: fix character loss at high transfer rates
  usb: cdnsp: Fix the IMAN_IE_SET and IMAN_IE_CLEAR macro
  usb: cdnsp: Fixed issue with ZLP
  usb: cdnsp: Fix incorrect supported maximum speed
  usb: cdns3: Fixed incorrect gadget state
  usb: gadget: f_hid: idle uses the highest byte for duration
  Revert "thunderbolt: Hide authorized attribute if router does not support PCIe tunnels"
  usb: otg-fsm: Fix hrtimer list corruption
  usb: host: ohci-at91: suspend/resume ports after/before OHCI accesses
  usb: musb: Fix suspend and resume issues for PHYs on I2C and SPI
  usb: gadget: f_hid: added GET_IDLE and SET_IDLE handlers
  usb: gadget: f_hid: fixed NULL pointer dereference
  usb: gadget: remove leaked entry from udc driver list
  ...
      6a655547
  5. 07 Aug, 2021 6 commits
  7. 06 Aug, 2021 3 commits
    • Vincent Fu's avatar
      kyber: make trace_block_rq call consistent with documentation · fb7b9b02
      Vincent Fu authored 
      The kyber ioscheduler calls trace_block_rq_insert() *after* the request
is added to the queue but the documentation for trace_block_rq_insert()
says that the call should be made *before* the request is added to the
queue.  Move the tracepoint for the kyber ioscheduler so that it is
consistent with the documentation.
Signed-off-by: default avatarVincent Fu <vincent.fu@samsung.com>
Link: https://lore.kernel.org/r/20210804194913.10497-1-vincent.fu@samsung.com
Reviewed by: Adam Manzanares <a.manzanares@samsung.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      fb7b9b02
    • Linus Torvalds's avatar
      Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · c9194f32
      Linus Torvalds authored 
      Pull ext4 fixes from Ted Ts'o:
 "A regression fix, bug fix, and a comment cleanup for ext4"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix potential htree corruption when growing large_dir directories
  ext4: remove conflicting comment from __ext4_forget
  ext4: fix potential uninitialized access to retval in kmmpd
      c9194f32
    • Linus Torvalds's avatar
      Merge tag 'trace-v5.14-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · 2c4b1ec6
      Linus Torvalds authored 
      Pull tracing fixes from Steven Rostedt:
 "Fix tracepoint race between static_call and callback data

  As callbacks to a tracepoint are paired with the data that is passed
  in when the callback is registered to the tracepoint, it must have
  that data passed to the callback when the tracepoint is triggered,
  else bad things will happen. To keep the two together, they are both
  assigned to a tracepoint structure and added to an array. The
  tracepoint call site will dereference the structure (via RCU) and call
  the callback in that structure along with the data in that structure.
  This keeps the callback and data tightly coupled.

  Because of the overhead that retpolines have on tracepoint callbacks,
  if there's only one callback attached to a tracepoint (a common case),
  then it is called via a static call (code modified to do a direct call
  instead of an indirect call). But to implement this, the data had to
  be decoupled from the callback, as now the callback is implemented via
  a direct call from the static call and not an indirect call from the
  dereferenced structure.

  Note, the static call only calls a callback used when there's a single
  callback attached to the tracepoint. If more than one callback is
  attached to the same tracepoint, then the static call will call an
  iterator function that goes back to dereferencing the structure
  keeping the callback and its data tightly coupled again.

  Issues can arise when going from 0 callbacks to one, as the static
  call is assigned to the callback, and it must take care that the data
  passed to it is loaded before the static call calls the callback.
  Going from 1 to 2 callbacks is not an issue, as long as the static
  call is updated to the iterator before the tracepoint structure array
  is updated via RCU. Going from 2 to more or back down to 2 is not an
  issue as the iterator can handle all theses cases. But going from 2 to
  1, care must be taken as the static call is now calling a callback and
  the data that is loaded must be the data for that callback.

  Care was taken to ensure the callback and data would be in-sync, but
  after a bug was reported, it became clear that not enough was done to
  make sure that was the case. These changes address this.

  The first change is to compare the old and new data instead of the old
  and new callback, as it's the data that can corrupt the callback, even
  if the callback is the same (something getting freed).

  The next change is to convert these transitions into states, to make
  it easier to know when a synchronization is needed, and to perform
  those synchronizations. The problem with this patch is that it slows
  down disabling all events from under a second, to making it take over
  10 seconds to do the same work. But that is addressed in the final
  patch.

  The final patch uses the RCU state functions to keep track of the RCU
  state between the transitions, and only needs to perform the
  synchronization if an RCU synchronization hasn't been done already.
  This brings the performance of disabling all events back to its
  original value. That's because no synchronization is required between
  disabling tracepoints but is required when enabling a tracepoint after
  its been disabled. If an RCU synchronization happens after the
  tracepoint is disabled, and before it is re-enabled, there's no need
  to do the synchronization again.

  Both the second and third patch have subtle complexities that they are
  separated into two patches. But because the second patch causes such a
  regression in performance, the third patch adds a "Fixes" tag to the
  second patch, such that the two must be backported together and not
  just the second patch"

* tag 'trace-v5.14-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracepoint: Use rcu get state and cond sync for static call updates
  tracepoint: Fix static call function vs data state mismatch
  tracepoint: static call: Compare data on transition from 2->1 callees
      2c4b1ec6
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