Commit Graph

949629 Commits

Author SHA1 Message Date
Rafael J. Wysocki
763700f5e0 Merge branch 'opp/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull operating performance points (OPP) framework fixes for 5.9-rc4 from
Viresh Kumar:

"This fixes reference counting for OPP tables. Few patches are getting
 queued (for various subsystems) for 5.10 which depend on this to be
 fixed first."

* 'opp/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
  opp: Don't drop reference for an OPP table that was never parsed
2020-09-01 19:44:20 +02:00
Viresh Kumar
922ff0759a opp: Don't drop reference for an OPP table that was never parsed
dev_pm_opp_remove_table() should drop a reference to the OPP table only
if the DT OPP table was parsed earlier with a call to
dev_pm_opp_of_add_table() earlier. Else it may end up dropping the
reference to the OPP table, which was added as a result of other calls
like dev_pm_opp_set_clkname(). And would hence result in undesirable
behavior later on when caller would try to free the resource again.

Fixes: 03758d6026 ("opp: Replace list_kref with a local counter")
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Reported-by: Anders Roxell <anders.roxell@linaro.org>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-08-31 14:49:47 +05:30
Linus Torvalds
f75aef392f Linux 5.9-rc3 2020-08-30 16:01:54 -07:00
Linus Torvalds
e43327c706 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:

 - fix regression in af_alg that affects iwd

 - restore polling delay in qat

 - fix double free in ingenic on error path

 - fix potential build failure in sa2ul due to missing Kconfig dependency

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: af_alg - Work around empty control messages without MSG_MORE
  crypto: sa2ul - add Kconfig selects to fix build error
  crypto: ingenic - Drop kfree for memory allocated with devm_kzalloc
  crypto: qat - add delay before polling mailbox
2020-08-30 15:53:44 -07:00
Linus Torvalds
dcc5c6f013 Three interrupt related fixes for X86:
- Move disabling of the local APIC after invoking fixup_irqs() to ensure
    that interrupts which are incoming are noted in the IRR and not ignored.
 
  - Unbreak affinity setting. The rework of the entry code reused the
    regular exception entry code for device interrupts. The vector number is
    pushed into the errorcode slot on the stack which is then lifted into an
    argument and set to -1 because that's regs->orig_ax which is used in
    quite some places to check whether the entry came from a syscall. But it
    was overlooked that orig_ax is used in the affinity cleanup code to
    validate whether the interrupt has arrived on the new target. It turned
    out that this vector check is pointless because interrupts are never
    moved from one vector to another on the same CPU. That check is a
    historical leftover from the time where x86 supported multi-CPU
    affinities, but not longer needed with the now strict single CPU
    affinity. Famous last words ...
 
  - Add a missing check for an empty cpumask into the matrix allocator. The
    affinity change added a warning to catch the case where an interrupt is
    moved on the same CPU to a different vector. This triggers because a
    condition with an empty cpumask returns an assignment from the allocator
    as the allocator uses for_each_cpu() without checking the cpumask for
    being empty. The historical inconsistent for_each_cpu() behaviour of
    ignoring the cpumask and unconditionally claiming that CPU0 is in the
    mask striked again. Sigh.
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Merge tag 'x86-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:
 "Three interrupt related fixes for X86:

   - Move disabling of the local APIC after invoking fixup_irqs() to
     ensure that interrupts which are incoming are noted in the IRR and
     not ignored.

   - Unbreak affinity setting.

     The rework of the entry code reused the regular exception entry
     code for device interrupts. The vector number is pushed into the
     errorcode slot on the stack which is then lifted into an argument
     and set to -1 because that's regs->orig_ax which is used in quite
     some places to check whether the entry came from a syscall.

     But it was overlooked that orig_ax is used in the affinity cleanup
     code to validate whether the interrupt has arrived on the new
     target. It turned out that this vector check is pointless because
     interrupts are never moved from one vector to another on the same
     CPU. That check is a historical leftover from the time where x86
     supported multi-CPU affinities, but not longer needed with the now
     strict single CPU affinity. Famous last words ...

   - Add a missing check for an empty cpumask into the matrix allocator.

     The affinity change added a warning to catch the case where an
     interrupt is moved on the same CPU to a different vector. This
     triggers because a condition with an empty cpumask returns an
     assignment from the allocator as the allocator uses for_each_cpu()
     without checking the cpumask for being empty. The historical
     inconsistent for_each_cpu() behaviour of ignoring the cpumask and
     unconditionally claiming that CPU0 is in the mask struck again.
     Sigh.

  plus a new entry into the MAINTAINER file for the HPE/UV platform"

* tag 'x86-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq/matrix: Deal with the sillyness of for_each_cpu() on UP
  x86/irq: Unbreak interrupt affinity setting
  x86/hotplug: Silence APIC only after all interrupts are migrated
  MAINTAINERS: Add entry for HPE Superdome Flex (UV) maintainers
2020-08-30 12:01:23 -07:00
Linus Torvalds
d2283cdc18 A set of fixes for interrupt chip drivers:
- Revert the platform driver conversion of interrupt chip drivers as it
    turned out to create more problems than it solves.
 
  - Fix a trivial typo in the new module helpers which made probing reliably
    fail.
 
  - Small fixes in the STM32 and MIPS Ingenic drivers
 
  - The TI firmware rework which had badly managed dependencies and had to
    wait post rc1.
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Merge tag 'irq-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
 "A set of fixes for interrupt chip drivers:

   - Revert the platform driver conversion of interrupt chip drivers as
     it turned out to create more problems than it solves.

   - Fix a trivial typo in the new module helpers which made probing
     reliably fail.

   - Small fixes in the STM32 and MIPS Ingenic drivers

   - The TI firmware rework which had badly managed dependencies and had
     to wait post rc1"

* tag 'irq-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/ingenic: Leave parent IRQ unmasked on suspend
  irqchip/stm32-exti: Avoid losing interrupts due to clearing pending bits by mistake
  irqchip: Revert modular support for drivers using IRQCHIP_PLATFORM_DRIVER helperse
  irqchip: Fix probing deferal when using IRQCHIP_PLATFORM_DRIVER helpers
  arm64: dts: k3-am65: Update the RM resource types
  arm64: dts: k3-am65: ti-sci-inta/intr: Update to latest bindings
  arm64: dts: k3-j721e: ti-sci-inta/intr: Update to latest bindings
  irqchip/ti-sci-inta: Add support for INTA directly connecting to GIC
  irqchip/ti-sci-inta: Do not store TISCI device id in platform device id field
  dt-bindings: irqchip: Convert ti, sci-inta bindings to yaml
  dt-bindings: irqchip: ti, sci-inta: Update docs to support different parent.
  irqchip/ti-sci-intr: Add support for INTR being a parent to INTR
  dt-bindings: irqchip: Convert ti, sci-intr bindings to yaml
  dt-bindings: irqchip: ti, sci-intr: Update bindings to drop the usage of gic as parent
  firmware: ti_sci: Add support for getting resource with subtype
  firmware: ti_sci: Drop unused structure ti_sci_rm_type_map
  firmware: ti_sci: Drop the device id to resource type translation
2020-08-30 11:56:54 -07:00
Linus Torvalds
0063a82de9 A single fix for the scheduler:
- Make is_idle_task() __always_inline to prevent the compiler from putting
    it out of line into the wrong section because it's used inside noinstr
    sections.
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Merge tag 'sched-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fix from Thomas Gleixner:
 "A single fix for the scheduler:

   - Make is_idle_task() __always_inline to prevent the compiler from
     putting it out of line into the wrong section because it's used
     inside noinstr sections"

* tag 'sched-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Use __always_inline on is_idle_task()
2020-08-30 11:50:53 -07:00
Linus Torvalds
b69bea8a65 A set of fixes for lockdep, tracing and RCU:
- Prevent recursion by using raw_cpu_* operations
 
   - Fixup the interrupt state in the cpu idle code to be consistent
 
   - Push rcu_idle_enter/exit() invocations deeper into the idle path so
     that the lock operations are inside the RCU watching sections
 
   - Move trace_cpu_idle() into generic code so it's called before RCU goes
     idle.
 
   - Handle raw_local_irq* vs. local_irq* operations correctly
 
   - Move the tracepoints out from under the lockdep recursion handling
     which turned out to be fragile and inconsistent.
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Merge tag 'locking-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fixes from Thomas Gleixner:
 "A set of fixes for lockdep, tracing and RCU:

   - Prevent recursion by using raw_cpu_* operations

   - Fixup the interrupt state in the cpu idle code to be consistent

   - Push rcu_idle_enter/exit() invocations deeper into the idle path so
     that the lock operations are inside the RCU watching sections

   - Move trace_cpu_idle() into generic code so it's called before RCU
     goes idle.

   - Handle raw_local_irq* vs. local_irq* operations correctly

   - Move the tracepoints out from under the lockdep recursion handling
     which turned out to be fragile and inconsistent"

* tag 'locking-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  lockdep,trace: Expose tracepoints
  lockdep: Only trace IRQ edges
  mips: Implement arch_irqs_disabled()
  arm64: Implement arch_irqs_disabled()
  nds32: Implement arch_irqs_disabled()
  locking/lockdep: Cleanup
  x86/entry: Remove unused THUNKs
  cpuidle: Move trace_cpu_idle() into generic code
  cpuidle: Make CPUIDLE_FLAG_TLB_FLUSHED generic
  sched,idle,rcu: Push rcu_idle deeper into the idle path
  cpuidle: Fixup IRQ state
  lockdep: Use raw_cpu_*() for per-cpu variables
2020-08-30 11:43:50 -07:00
Linus Torvalds
3edd8db2d5 DFS SMB1 Fix
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Merge tag '5.9-rc2-smb-fix' of git://git.samba.org/sfrench/cifs-2.6

Pull cfis fix from Steve French:
 "DFS fix for referral problem when using SMB1"

* tag '5.9-rc2-smb-fix' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix check of tcon dfs in smb1
2020-08-30 11:38:21 -07:00
Linus Torvalds
8bb5021cc2 powerpc fixes for 5.9 #4
Revert our removal of PROT_SAO, at least one user expressed an interest in using
 it on Power9. Instead don't allow it to be used in guests unless enabled
 explicitly at compile time.
 
 A fix for a crash introduced by a recent change to FP handling.
 
 Revert a change to our idle code that left Power10 with no idle support.
 
 One minor fix for the new scv system call path to set PPR.
 
 Fix a crash in our "generic" PMU if branch stack events were enabled.
 
 A fix for the IMC PMU, to correctly identify host kernel samples.
 
 The ADB_PMU powermac code was found to be incompatible with VMAP_STACK, so make
 them incompatible in Kconfig until the code can be fixed.
 
 A build fix in drivers/video/fbdev/controlfb.c, and a documentation fix.
 
 Thanks to:
   Alexey Kardashevskiy, Athira Rajeev, Christophe Leroy, Giuseppe Sacco,
   Madhavan Srinivasan, Milton Miller, Nicholas Piggin, Pratik Rajesh Sampat,
   Randy Dunlap, Shawn Anastasio, Vaidyanathan Srinivasan.
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Merge tag 'powerpc-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Revert our removal of PROT_SAO, at least one user expressed an
   interest in using it on Power9. Instead don't allow it to be used in
   guests unless enabled explicitly at compile time.

 - A fix for a crash introduced by a recent change to FP handling.

 - Revert a change to our idle code that left Power10 with no idle
   support.

 - One minor fix for the new scv system call path to set PPR.

 - Fix a crash in our "generic" PMU if branch stack events were enabled.

 - A fix for the IMC PMU, to correctly identify host kernel samples.

 - The ADB_PMU powermac code was found to be incompatible with
   VMAP_STACK, so make them incompatible in Kconfig until the code can
   be fixed.

 - A build fix in drivers/video/fbdev/controlfb.c, and a documentation
   fix.

Thanks to Alexey Kardashevskiy, Athira Rajeev, Christophe Leroy,
Giuseppe Sacco, Madhavan Srinivasan, Milton Miller, Nicholas Piggin,
Pratik Rajesh Sampat, Randy Dunlap, Shawn Anastasio, Vaidyanathan
Srinivasan.

* tag 'powerpc-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/32s: Disable VMAP stack which CONFIG_ADB_PMU
  Revert "powerpc/powernv/idle: Replace CPU feature check with PVR check"
  powerpc/perf: Fix reading of MSR[HV/PR] bits in trace-imc
  powerpc/perf: Fix crashes with generic_compat_pmu & BHRB
  powerpc/64s: Fix crash in load_fp_state() due to fpexc_mode
  powerpc/64s: scv entry should set PPR
  Documentation/powerpc: fix malformed table in syscall64-abi
  video: fbdev: controlfb: Fix build for COMPILE_TEST=y && PPC_PMAC=n
  selftests/powerpc: Update PROT_SAO test to skip ISA 3.1
  powerpc/64s: Disallow PROT_SAO in LPARs by default
  Revert "powerpc/64s: Remove PROT_SAO support"
2020-08-30 10:56:12 -07:00
Linus Torvalds
6f0306d1bf USB fixes for 5.9-rc3 - take 2
Let's try this again...  Here are some USB fixes for 5.9-rc3.
 
 This differs from the previous pull request for this release in that:
 	- the usb gadget patch now does not break some systems, and
 	  actually does what it was intended to do.  Many thanks to
 	  Marek Szyprowski for quickly noticing and testing the patch
 	  from Andy Shevchenko to resolve this issue.
 	- some more new USB quirks have been added to get some new
 	  devices to work properly based on user reports.
 
 Other than that, the original pull request patches are all here, and
 they contain:
 	- usb gadget driver fixes
 	- xhci driver fixes
 	- typec fixes
 	- new quirks and ids
 	- fixes for USB patches that went into 5.9-rc1.
 
 All of these have been tested in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Let's try this again...  Here are some USB fixes for 5.9-rc3.

  This differs from the previous pull request for this release in that
  the usb gadget patch now does not break some systems, and actually
  does what it was intended to do. Many thanks to Marek Szyprowski for
  quickly noticing and testing the patch from Andy Shevchenko to resolve
  this issue.

  Additionally, some more new USB quirks have been added to get some new
  devices to work properly based on user reports.

  Other than that, the patches are all here, and they contain:

   - usb gadget driver fixes

   - xhci driver fixes

   - typec fixes

   - new quirks and ids

   - fixes for USB patches that went into 5.9-rc1.

  All of these have been tested in linux-next with no reported issues"

* tag 'usb-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (33 commits)
  usb: storage: Add unusual_uas entry for Sony PSZ drives
  USB: Ignore UAS for JMicron JMS567 ATA/ATAPI Bridge
  usb: host: ohci-exynos: Fix error handling in exynos_ohci_probe()
  USB: gadget: u_f: Unbreak offset calculation in VLAs
  USB: quirks: Ignore duplicate endpoint on Sound Devices MixPre-D
  usb: typec: tcpm: Fix Fix source hard reset response for TDA 2.3.1.1 and TDA 2.3.1.2 failures
  USB: PHY: JZ4770: Fix static checker warning.
  USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb()
  USB: gadget: u_f: add overflow checks to VLA macros
  xhci: Always restore EP_SOFT_CLEAR_TOGGLE even if ep reset failed
  xhci: Do warm-reset when both CAS and XDEV_RESUME are set
  usb: host: xhci: fix ep context print mismatch in debugfs
  usb: uas: Add quirk for PNY Pro Elite
  tools: usb: move to tools buildsystem
  USB: Fix device driver race
  USB: Also match device drivers using the ->match vfunc
  usb: host: xhci-tegra: fix tegra_xusb_get_phy()
  usb: host: xhci-tegra: otg usb2/usb3 port init
  usb: hcd: Fix use after free in usb_hcd_pci_remove()
  usb: typec: ucsi: Hold con->lock for the entire duration of ucsi_register_port()
  ...
2020-08-30 10:51:03 -07:00
Linus Torvalds
42df60fcdf A fix to properly clear ghes_edac driver state on driver remove so that
a subsequent load can probe the system properly; by Shiju Jose.
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Merge tag 'edac_urgent_for_v5.9_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC fix from Borislav Petkov:
 "A fix to properly clear ghes_edac driver state on driver remove so
  that a subsequent load can probe the system properly (Shiju Jose)"

* tag 'edac_urgent_for_v5.9_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/ghes: Fix NULL pointer dereference in ghes_edac_register()
2020-08-30 10:47:23 -07:00
Linus Torvalds
c4011283a7 dma-mapping fixes:
- fix a possibly uninitialized variable (Dan Carpenter)
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Merge tag 'dma-mapping-5.9-2' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fix from Christoph Hellwig:
 "Fix a possibly uninitialized variable (Dan Carpenter)"

* tag 'dma-mapping-5.9-2' of git://git.infradead.org/users/hch/dma-mapping:
  dma-pool: Fix an uninitialized variable bug in atomic_pool_expand()
2020-08-30 10:37:18 -07:00
Thomas Gleixner
784a083037 genirq/matrix: Deal with the sillyness of for_each_cpu() on UP
Most of the CPU mask operations behave the same way, but for_each_cpu() and
it's variants ignore the cpumask argument and claim that CPU0 is always in
the mask. This is historical, inconsistent and annoying behaviour.

The matrix allocator uses for_each_cpu() and can be called on UP with an
empty cpumask. The calling code does not expect that this succeeds but
until commit e027fffff7 ("x86/irq: Unbreak interrupt affinity setting")
this went unnoticed. That commit added a WARN_ON() to catch cases which
move an interrupt from one vector to another on the same CPU. The warning
triggers on UP.

Add a check for the cpumask being empty to prevent this.

Fixes: 2f75d9e1c9 ("genirq: Implement bitmap matrix allocator")
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
2020-08-30 19:17:28 +02:00
Linus Torvalds
1127b219ce fallthrough fixes for 5.9-rc3
Hi Linus,
 
 Please, pull the following patches that fix some minor issues introduced
 by the recent treewide fallthrough conversions:
 
 - Fix identation issue.
 - Fix erroneous fallthrough annotation.
 - Remove unnecessary fallthrough annotation.
 - Fix code comment changed by fallthrough conversion.
 
 Thanks
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Merge tag 'fallthrough-fixes-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull fallthrough fixes from Gustavo A. R. Silva:
 "Fix some minor issues introduced by the recent treewide fallthrough
  conversions:

   - Fix identation issue

   - Fix erroneous fallthrough annotation

   - Remove unnecessary fallthrough annotation

   - Fix code comment changed by fallthrough conversion"

* tag 'fallthrough-fixes-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
  arm64/cpuinfo: Remove unnecessary fallthrough annotation
  media: dib0700: Fix identation issue in dib8096_set_param_override()
  afs: Remove erroneous fallthough annotation
  iio: dpot-dac: fix code comment in dpot_dac_read_raw()
2020-08-29 14:21:58 -07:00
Linus Torvalds
0a4c56c80f fsldma: fix very broken 32-bit ppc ioread64 functionality
Commit ef91bb196b ("kernel.h: Silence sparse warning in
lower_32_bits") caused new warnings to show in the fsldma driver, but
that commit was not to blame: it only exposed some very incorrect code
that tried to take the low 32 bits of an address.

That made no sense for multiple reasons, the most notable one being that
that code was intentionally limited to only 32-bit ppc builds, so "only
low 32 bits of an address" was completely nonsensical.  There were no
high bits to mask off to begin with.

But even more importantly fropm a correctness standpoint, turning the
address into an integer then caused the subsequent address arithmetic to
be completely wrong too, and the "+1" actually incremented the address
by one, rather than by four.

Which again was incorrect, since the code was reading two 32-bit values
and trying to make a 64-bit end result of it all.  Surprisingly, the
iowrite64() did not suffer from the same odd and incorrect model.

This code has never worked, but it's questionable whether anybody cared:
of the two users that actually read the 64-bit value (by way of some C
preprocessor hackery and eventually the 'get_cdar()' inline function),
one of them explicitly ignored the value, and the other one might just
happen to work despite the incorrect value being read.

This patch at least makes it not fail the build any more, and makes the
logic superficially sane.  Whether it makes any difference to the code
_working_ or not shall remain a mystery.

Compile-tested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-29 13:50:56 -07:00
Linus Torvalds
e77aee1326 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "A core fix for ACPI matching and two driver bugfixes"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: iproc: Fix shifting 31 bits
  i2c: rcar: in slave mode, clear NACK earlier
  i2c: acpi: Remove dead code, i.e. i2c_acpi_match_device()
  i2c: core: Don't fail PRP0001 enumeration when no ID table exist
2020-08-29 13:13:44 -07:00
Linus Torvalds
1b46b921b0 s390 fixes for 5.9-rc3
- Disable preemption trace in percpu macros since the lockdep code itself
   uses percpu variables now and it causes recursions.
 
 - Fix kernel space 4-level paging broken by recent vmem rework.
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Merge tag 's390-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Vasily Gorbik:

 - Disable preemption trace in percpu macros since the lockdep code
   itself uses percpu variables now and it causes recursions.

 - Fix kernel space 4-level paging broken by recent vmem rework.

* tag 's390-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/vmem: fix vmem_add_range for 4-level paging
  s390: don't trace preemption in percpu macros
2020-08-29 12:51:58 -07:00
Linus Torvalds
c8b5563abe xen: branch for v5.9-rc3
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Merge tag 'for-linus-5.9-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
 "Two fixes for Xen: one needed for ongoing work to support virtio with
  Xen, and one for a corner case in IRQ handling with Xen"

* tag 'for-linus-5.9-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  arm/xen: Add misuse warning to virt_to_gfn
  xen/xenbus: Fix granting of vmalloc'd memory
  XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.
2020-08-29 12:44:30 -07:00
Linus Torvalds
e4cad138aa hwmon fixes for v5.9-rc3
- Fix tempeerature scale in gsc-hwmon driver
 - Fix divide by 0 error in nct7904 driver
 - Drop non-existing attribute from pmbus/isl68137 driver
 - Fix status check in applesmc driver
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Merge tag 'hwmon-for-v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Fix tempeerature scale in gsc-hwmon driver

 - Fix divide by 0 error in nct7904 driver

 - Drop non-existing attribute from pmbus/isl68137 driver

 - Fix status check in applesmc driver

* tag 'hwmon-for-v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (gsc-hwmon) Scale temperature to millidegrees
  hwmon: (applesmc) check status earlier.
  hwmon: (nct7904) Correct divide by 0
  hwmon: (pmbus/isl68137) remove READ_TEMPERATURE_1 telemetry for RAA228228
2020-08-29 12:37:00 -07:00
Linus Torvalds
4d41ead6ea block-5.9-2020-08-28
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Merge tag 'block-5.9-2020-08-28' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - nbd timeout fix (Hou)

 - device size fix for loop LOOP_CONFIGURE (Martijn)

 - MD pull from Song with raid5 stripe size fix (Yufen)

* tag 'block-5.9-2020-08-28' of git://git.kernel.dk/linux-block:
  md/raid5: make sure stripe_size as power of two
  loop: Set correct device size when using LOOP_CONFIGURE
  nbd: restore default timeout when setting it to zero
2020-08-28 16:38:29 -07:00
Linus Torvalds
24148d8648 io_uring-5.9-2020-08-28
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Merge tag 'io_uring-5.9-2020-08-28' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "A few fixes in here, all based on reports and test cases from folks
  using it. Most of it is stable material as well:

   - Hashed work cancelation fix (Pavel)

   - poll wakeup signalfd fix

   - memlock accounting fix

   - nonblocking poll retry fix

   - ensure we never return -ERESTARTSYS for reads

   - ensure offset == -1 is consistent with preadv2() as documented

   - IOPOLL -EAGAIN handling fixes

   - remove useless task_work bounce for block based -EAGAIN retry"

* tag 'io_uring-5.9-2020-08-28' of git://git.kernel.dk/linux-block:
  io_uring: don't bounce block based -EAGAIN retry off task_work
  io_uring: fix IOPOLL -EAGAIN retries
  io_uring: clear req->result on IOPOLL re-issue
  io_uring: make offset == -1 consistent with preadv2/pwritev2
  io_uring: ensure read requests go through -ERESTART* transformation
  io_uring: don't use poll handler if file can't be nonblocking read/written
  io_uring: fix imbalanced sqo_mm accounting
  io_uring: revert consumed iov_iter bytes on error
  io-wq: fix hang after cancelling pending hashed work
  io_uring: don't recurse on tsk->sighand->siglock with signalfd
2020-08-28 16:23:16 -07:00
Linus Torvalds
005c53447a Device properties framework fix for 5.9-rc3
Prevent the promotion of the secondary firmware node of a device to
 the primary one from leaking a pointer (Heikki Krogerus).
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Merge tag 'devprop-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull device properties framework fix from Rafael Wysocki:
 "Prevent the promotion of the secondary firmware node of a device to
  the primary one from leaking a pointer (Heikki Krogerus)"

* tag 'devprop-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  device property: Fix the secondary firmware node handling in set_primary_fwnode()
2020-08-28 13:23:31 -07:00
Linus Torvalds
0b2f18e7ae ACPI fixes for 5.9-rc3
- Avoid redundant rounding to the page size in acpi_os_map_iomem()
    to address a recently introduced issue with the EFI memory map
    permission check on ARM64 (Ard Biesheuvel).
 
  - Fix acpi_release_memory() to wait until the memory mappings
    released by it have been really unmapped (Rafael Wysocki).
 
  - Make the ACPI driver for AMD SoCs (APD) check the return value
    of acpi_dev_get_property() to avoid failures in the cases when the
    device property under inspection is missing (Furquan Shaikh).
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Merge tag 'acpi-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix two recent issues in the ACPI memory mappings management
  code and tighten up error handling in the ACPI driver for AMD SoCs
  (APD).

  Specifics:

   - Avoid redundant rounding to the page size in acpi_os_map_iomem() to
     address a recently introduced issue with the EFI memory map
     permission check on ARM64 (Ard Biesheuvel).

   - Fix acpi_release_memory() to wait until the memory mappings
     released by it have been really unmapped (Rafael Wysocki).

   - Make the ACPI driver for AMD SoCs (APD) check the return value of
     acpi_dev_get_property() to avoid failures in the cases when the
     device property under inspection is missing (Furquan Shaikh)"

* tag 'acpi-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: OSL: Prevent acpi_release_memory() from returning too early
  ACPI: ioremap: avoid redundant rounding to OS page size
  ACPI: SoC: APD: Check return value of acpi_dev_get_property()
2020-08-28 13:17:14 -07:00
Linus Torvalds
326e311b84 Power management fixes for 5.9-rc3
- Make the recently added Tegra194 cpufreq driver use
    read_cpuid_mpir() instead of cpu_logical_map() to avoid
    exporting logical_cpu_map (Sumit Gupta).
 
  - Drop the automatic system wakeup event reporting for devices
    with pending runtime-resume requests during system-wide suspend
    to avoid spurious aborts of the suspend flow (Rafael Wysocki).
 
  - Fix build warning in the intel_pstate driver documentation and
    improve the wording in there (Randy Dunlap).
 
  - Clean up two pieces of code in the cpufreq core (Viresh Kumar).
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Merge tag 'pm-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix the recently added Tegra194 cpufreq driver and the handling
  of devices using runtime PM during system-wide suspend, improve the
  intel_pstate driver documentation and clean up the cpufreq core.

  Specifics:

   - Make the recently added Tegra194 cpufreq driver use
     read_cpuid_mpir() instead of cpu_logical_map() to avoid exporting
     logical_cpu_map (Sumit Gupta).

   - Drop the automatic system wakeup event reporting for devices with
     pending runtime-resume requests during system-wide suspend to avoid
     spurious aborts of the suspend flow (Rafael Wysocki).

   - Fix build warning in the intel_pstate driver documentation and
     improve the wording in there (Randy Dunlap).

   - Clean up two pieces of code in the cpufreq core (Viresh Kumar)"

* tag 'pm-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: Use WARN_ON_ONCE() for invalid relation
  cpufreq: No need to verify cpufreq_driver in show_scaling_cur_freq()
  PM: sleep: core: Fix the handling of pending runtime resume requests
  Documentation: fix pm/intel_pstate build warning and wording
  cpufreq: replace cpu_logical_map() with read_cpuid_mpir()
2020-08-28 13:12:09 -07:00
Rafael J. Wysocki
4f31d53c21 Merge branch 'acpi-mm'
* acpi-mm:
  ACPI: OSL: Prevent acpi_release_memory() from returning too early
  ACPI: ioremap: avoid redundant rounding to OS page size
2020-08-28 21:17:56 +02:00
Rafael J. Wysocki
ef7d960403 Merge branch 'pm-cpufreq'
* pm-cpufreq:
  cpufreq: Use WARN_ON_ONCE() for invalid relation
  cpufreq: No need to verify cpufreq_driver in show_scaling_cur_freq()
  Documentation: fix pm/intel_pstate build warning and wording
  cpufreq: replace cpu_logical_map() with read_cpuid_mpir()
2020-08-28 20:58:16 +02:00
Linus Torvalds
96d454cd2c - Fix kernel build with the integrated LLVM assembler which doesn't
see the -Wa,-march option.
 
 - Fix "make vdso_install" when COMPAT_VDSO is disabled.
 
 - Make KVM more robust if the AT S1E1R instruction triggers an exception
   (architecture corner cases).
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Fix kernel build with the integrated LLVM assembler which doesn't see
   the -Wa,-march option.

 - Fix "make vdso_install" when COMPAT_VDSO is disabled.

 - Make KVM more robust if the AT S1E1R instruction triggers an
   exception (architecture corner cases).

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  KVM: arm64: Set HCR_EL2.PTW to prevent AT taking synchronous exception
  KVM: arm64: Survive synchronous exceptions caused by AT instructions
  KVM: arm64: Add kvm_extable for vaxorcism code
  arm64: vdso32: make vdso32 install conditional
  arm64: use a common .arch preamble for inline assembly
2020-08-28 11:37:33 -07:00
Herbert Xu
ef91bb196b kernel.h: Silence sparse warning in lower_32_bits
I keep getting sparse warnings in crypto such as:

  CHECK   drivers/crypto/ccree/cc_hash.c
   drivers/crypto/ccree/cc_hash.c:49:9: warning: cast truncates bits from constant value (47b5481dbefa4fa4 becomes befa4fa4)
   drivers/crypto/ccree/cc_hash.c:49:26: warning: cast truncates bits from constant value (db0c2e0d64f98fa7 becomes 64f98fa7)
   [.. many more ..]

This patch removes the warning by adding a mask to keep sparse
happy.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-28 11:21:20 -07:00
Linus Torvalds
e309428590 \n
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Merge tag 'writeback_for_v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull writeback fixes from Jan Kara:
 "Fixes for writeback code occasionally skipping writeback of some
  inodes or livelocking sync(2)"

* tag 'writeback_for_v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  writeback: Drop I_DIRTY_TIME_EXPIRE
  writeback: Fix sync livelock due to b_dirty_time processing
  writeback: Avoid skipping inode writeback
  writeback: Protect inode->i_io_list with inode->i_lock
2020-08-28 10:57:14 -07:00
Linus Torvalds
40129b8cb4 Fix memory leak on filesystem withdraw
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Merge tag 'gfs2-v5.9-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 fix from Andreas Gruenbacher:
 "Fix a memory leak on filesystem withdraw.

  We didn't detect this bug because we have slab merging on by default
  (CONFIG_SLAB_MERGE_DEFAULT). Adding 'slub_nomerge' to the kernel
  command line exposed the problem"

* tag 'gfs2-v5.9-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: add some much needed cleanup for log flushes that fail
2020-08-28 10:41:00 -07:00
Linus Torvalds
b0bfd5eca9 We have an inode number handling change, prompted by s390x which is
a 64-bit architecture with a 32-bit ino_t, a patch to disallow leases
 to avoid potential data integrity issues when CephFS is re-exported
 via NFS or CIFS and a fix for the bulk of W=1 compilation warnings.
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Merge tag 'ceph-for-5.9-rc3' of git://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
 "We have an inode number handling change, prompted by s390x which is a
  64-bit architecture with a 32-bit ino_t, a patch to disallow leases to
  avoid potential data integrity issues when CephFS is re-exported via
  NFS or CIFS and a fix for the bulk of W=1 compilation warnings"

* tag 'ceph-for-5.9-rc3' of git://github.com/ceph/ceph-client:
  ceph: don't allow setlease on cephfs
  ceph: fix inode number handling on arches with 32-bit ino_t
  libceph: add __maybe_unused to DEFINE_CEPH_FEATURE
2020-08-28 10:33:04 -07:00
Paulo Alcantara
e183785f25 cifs: fix check of tcon dfs in smb1
For SMB1, the DFS flag should be checked against tcon->Flags rather
than tcon->share_flags.  While at it, add an is_tcon_dfs() helper to
check for DFS capability in a more generic way.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Shyam Prasad N <nspmangalore@gmail.com>
2020-08-28 12:27:33 -05:00
Linus Torvalds
3a7c327767 - Bug Fixes
- Fix double free; core
    - Handle Device Tree's disabled devices gracefully; core
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Merge tag 'mfd-fixes-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD fixes from Lee Jones:

 - fix double free

 - handle devicetree disabled devices gracefully

* tag 'mfd-fixes-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
  mfd: mfd-core: Ensure disabled devices are ignored without error
  mfd: core: Fix double-free in mfd_remove_devices_fn()
2020-08-28 10:15:33 -07:00
Linus Torvalds
5ec06b5c0d drm fixes for 5.9-rc3
core:
 - Take modeset bkl for legacy drivers.
 
 dp_mst:
 - Allow null crtc in dp_mst.
 
 i915:
 - Fix command parser desc matching with masks
 
 amdgpu:
 - Misc display fixes
 - Backlight fixes
 - MPO fix for DCN1
 - Fixes for Sienna Cichlid
 - Fixes for Navy Flounder
 - Vega SW CTF fixes
 - SMU fix for Raven
 - Fix a possible overflow in INFO ioctl
 - Gfx10 clockgating fix
 
 msm:
 - opp/bw scaling patch followup
 - frequency restoring fux
 - vblank in atomic commit fix
 - dpu modesetting fixes
 - fencing fix
 
 etnaviv:
 - scheduler interaction fix
 - gpu init regression fix
 
 exynos:
 - Just drop __iommu annotation to fix sparse warning.
 
 omap:
 - locking state fix.
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Merge tag 'drm-fixes-2020-08-28' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "As expected a bit of an rc3 uptick, amdgpu and msm are the main ones,
  one msm patch was from the merge window, but had dependencies and we
  dropped it until the other tree had landed. Otherwise it's a couple of
  fixes for core, and etnaviv, and single i915, exynos, omap fixes.

  I'm still tracking the Sandybridge gpu relocations issue, if we don't
  see much movement I might just queue up the reverts. I'll talk to
  Daniel next week once he's back from holidays.

  core:
   - Take modeset bkl for legacy drivers

  dp_mst:
   - Allow null crtc in dp_mst

  i915:
   - Fix command parser desc matching with masks

  amdgpu:
   - Misc display fixes
   - Backlight fixes
   - MPO fix for DCN1
   - Fixes for Sienna Cichlid
   - Fixes for Navy Flounder
   - Vega SW CTF fixes
   - SMU fix for Raven
   - Fix a possible overflow in INFO ioctl
   - Gfx10 clockgating fix

  msm:
   - opp/bw scaling patch followup
   - frequency restoring fux
   - vblank in atomic commit fix
   - dpu modesetting fixes
   - fencing fix

  etnaviv:
   - scheduler interaction fix
   - gpu init regression fix

  exynos:
   - Just drop __iommu annotation to fix sparse warning

  omap:
   - locking state fix"

* tag 'drm-fixes-2020-08-28' of git://anongit.freedesktop.org/drm/drm: (41 commits)
  drm/amd/display: Fix memleak in amdgpu_dm_mode_config_init
  drm/amdgpu: disable runtime pm for navy_flounder
  drm/amd/display: Retry AUX write when fail occurs
  drm/amdgpu: Fix buffer overflow in INFO ioctl
  drm/amd/powerplay: Fix hardmins not being sent to SMU for RV
  drm/amdgpu: use MODE1 reset for navy_flounder by default
  drm/amd/pm: correct the thermal alert temperature limit settings
  drm/amdgpu: add asd fw check before loading asd
  drm/amd/display: Keep current gain when ABM disable immediately
  drm/amd/display: Fix passive dongle mistaken as active dongle in EDID emulation
  drm/amd/display: Revert HDCP disable sequence change
  drm/amd/display: Send DISPLAY_OFF after power down on boot
  drm/amdgpu/gfx10: refine mgcg setting
  drm/amd/pm: correct Vega20 swctf limit setting
  drm/amd/pm: correct Vega12 swctf limit setting
  drm/amd/pm: correct Vega10 swctf limit setting
  drm/amd/pm: set VCN pg per instances
  drm/amd/pm: enable run_btc callback for sienna_cichlid
  drivers: gpu: amd: Initialize amdgpu_dm_backlight_caps object to 0 in amdgpu_dm_update_backlight_caps
  drm/amd/display: Reject overlay plane configurations in multi-display scenarios
  ...
2020-08-28 09:46:48 -07:00
James Morse
71a7f8cb1c KVM: arm64: Set HCR_EL2.PTW to prevent AT taking synchronous exception
AT instructions do a translation table walk and return the result, or
the fault in PAR_EL1. KVM uses these to find the IPA when the value is
not provided by the CPU in HPFAR_EL1.

If a translation table walk causes an external abort it is taken as an
exception, even if it was due to an AT instruction. (DDI0487F.a's D5.2.11
"Synchronous faults generated by address translation instructions")

While we previously made KVM resilient to exceptions taken due to AT
instructions, the device access causes mismatched attributes, and may
occur speculatively. Prevent this, by forbidding a walk through memory
described as device at stage2. Now such AT instructions will report a
stage2 fault.

Such a fault will cause KVM to restart the guest. If the AT instructions
always walk the page tables, but guest execution uses the translation cached
in the TLB, the guest can't make forward progress until the TLB entry is
evicted. This isn't a problem, as since commit 5dcd0fdbb4 ("KVM: arm64:
Defer guest entry when an asynchronous exception is pending"), KVM will
return to the host to process IRQs allowing the rest of the system to keep
running.

Cc: stable@vger.kernel.org # <v5.3: 5dcd0fdbb4 ("KVM: arm64: Defer guest entry when an asynchronous exception is pending")
Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-08-28 15:27:47 +01:00
James Morse
88a84ccccb KVM: arm64: Survive synchronous exceptions caused by AT instructions
KVM doesn't expect any synchronous exceptions when executing, any such
exception leads to a panic(). AT instructions access the guest page
tables, and can cause a synchronous external abort to be taken.

The arm-arm is unclear on what should happen if the guest has configured
the hardware update of the access-flag, and a memory type in TCR_EL1 that
does not support atomic operations. B2.2.6 "Possible implementation
restrictions on using atomic instructions" from DDI0487F.a lists
synchronous external abort as a possible behaviour of atomic instructions
that target memory that isn't writeback cacheable, but the page table
walker may behave differently.

Make KVM robust to synchronous exceptions caused by AT instructions.
Add a get_user() style helper for AT instructions that returns -EFAULT
if an exception was generated.

While KVM's version of the exception table mixes synchronous and
asynchronous exceptions, only one of these can occur at each location.

Re-enter the guest when the AT instructions take an exception on the
assumption the guest will take the same exception. This isn't guaranteed
to make forward progress, as the AT instructions may always walk the page
tables, but guest execution may use the translation cached in the TLB.

This isn't a problem, as since commit 5dcd0fdbb4 ("KVM: arm64: Defer guest
entry when an asynchronous exception is pending"), KVM will return to the
host to process IRQs allowing the rest of the system to keep running.

Cc: stable@vger.kernel.org # <v5.3: 5dcd0fdbb4 ("KVM: arm64: Defer guest entry when an asynchronous exception is pending")
Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-08-28 15:23:46 +01:00
James Morse
e9ee186bb7 KVM: arm64: Add kvm_extable for vaxorcism code
KVM has a one instruction window where it will allow an SError exception
to be consumed by the hypervisor without treating it as a hypervisor bug.
This is used to consume asynchronous external abort that were caused by
the guest.

As we are about to add another location that survives unexpected exceptions,
generalise this code to make it behave like the host's extable.

KVM's version has to be mapped to EL2 to be accessible on nVHE systems.

The SError vaxorcism code is a one instruction window, so has two entries
in the extable. Because the KVM code is copied for VHE and nVHE, we end up
with four entries, half of which correspond with code that isn't mapped.

Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-08-28 15:23:42 +01:00
Jens Axboe
a433d7217f Merge branch 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md into block-5.9
Pull MD fix from Song.

* 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md:
  md/raid5: make sure stripe_size as power of two
2020-08-28 07:52:02 -06:00
Frank van der Linden
5d28ba5f8a arm64: vdso32: make vdso32 install conditional
vdso32 should only be installed if CONFIG_COMPAT_VDSO is enabled,
since it's not even supposed to be compiled otherwise, and arm64
builds without a 32bit crosscompiler will fail.

Fixes: 8d75785a81 ("ARM64: vdso32: Install vdso32 from vdso_install")
Signed-off-by: Frank van der Linden <fllinden@amazon.com>
Cc: stable@vger.kernel.org [5.4+]
Link: https://lore.kernel.org/r/20200827234012.19757-1-fllinden@amazon.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-08-28 13:18:48 +01:00
Sami Tolvanen
1764c3edc6 arm64: use a common .arch preamble for inline assembly
Commit 7c78f67e9b ("arm64: enable tlbi range instructions") breaks
LLVM's integrated assembler, because -Wa,-march is only passed to
external assemblers and therefore, the new instructions are not enabled
when IAS is used.

This change adds a common architecture version preamble, which can be
used in inline assembly blocks that contain instructions that require
a newer architecture version, and uses it to fix __TLBI_0 and __TLBI_1
with ARM64_TLB_RANGE.

Fixes: 7c78f67e9b ("arm64: enable tlbi range instructions")
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1106
Link: https://lore.kernel.org/r/20200827203608.1225689-1-samitolvanen@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-08-28 11:15:15 +01:00
Lee Jones
22380b65dc mfd: mfd-core: Ensure disabled devices are ignored without error
Commit e49aa9a9bd22 ("mfd: core: Make a best effort attempt to match
devices with the correct of_nodes") changed the semantics for disabled
devices in mfd_add_device().  Instead of silently ignoring a disabled
child device, an error was returned.  On receipt of the error
mfd_add_devices() the precedes to remove *all* child devices and
returns an all-failed error to the caller, which will inevitably fail
the parent device as well.

This patch reverts back to the old semantics and ignores child devices
which are disabled in Device Tree.

Fixes: e49aa9a9bd22 ("mfd: core: Make a best effort attempt to match devices with the correct of_nodes")
Reported-by: Icenowy Zheng <icenowy@aosc.io>
Tested-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-08-28 09:51:41 +01:00
Alan Stern
20934c0de1 usb: storage: Add unusual_uas entry for Sony PSZ drives
The PSZ-HA* family of USB disk drives from Sony can't handle the
REPORT OPCODES command when using the UAS protocol.  This patch adds
an appropriate quirks entry.

Reported-and-tested-by: Till Dörges <doerges@pre-sense.de>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200826143229.GB400430@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-28 09:23:16 +02:00
Yufen Yu
6af10a33c5 md/raid5: make sure stripe_size as power of two
Commit 3b5408b98e ("md/raid5: support config stripe_size by sysfs
entry") make stripe_size as a configurable value. It just requires
stripe_size as multiple of 4KB.

In fact, we should make sure stripe_size as power of two. Otherwise,
stripe_shift which is the result of ilog2 can not represent the real
stripe_size. Then, stripe_hash() and stripe_hash_locks_hash() may
get unexpected value.

Fixes: 3b5408b98e ("md/raid5: support config stripe_size by sysfs entry")
Signed-off-by: Yufen Yu <yuyufen@huawei.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
2020-08-27 22:41:03 -07:00
Christophe Leroy
4a133eb351 powerpc/32s: Disable VMAP stack which CONFIG_ADB_PMU
low_sleep_handler() can't restore the context from virtual
stack because the stack can hardly be accessed with MMU OFF.

For now, disable VMAP stack when CONFIG_ADB_PMU is selected.

Fixes: cd08f109e2 ("powerpc/32s: Enable CONFIG_VMAP_STACK")
Cc: stable@vger.kernel.org # v5.6+
Reported-by: Giuseppe Sacco <giuseppe@sguazz.it>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/ec96c15bfa1a7415ab604ee1c98cd45779c08be0.1598553015.git.christophe.leroy@csgroup.eu
2020-08-28 12:03:18 +10:00
Dave Airlie
2a3f9da32d Merge tag 'drm-intel-fixes-2020-08-27' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v5.9-rc3:
- Fix command parser desc matching with masks

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87imd45ufw.fsf@intel.com
2020-08-28 11:02:53 +10:00
Dave Airlie
c2b2f02a02 Fixes for v5.9-rc2:
- Take modeset bkl for legacy drivers.
 - Allow null crtc in dp_mst.
 - Omap locking state fix.
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Merge tag 'drm-misc-fixes-2020-08-26' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Fixes for v5.9-rc2:
- Take modeset bkl for legacy drivers.
- Allow null crtc in dp_mst.
- Omap locking state fix.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7af1e52a-27de-8edc-d0b2-e23b01e8bc96@linux.intel.com
2020-08-28 10:52:34 +10:00
Jens Axboe
fdee946d09 io_uring: don't bounce block based -EAGAIN retry off task_work
These events happen inline from submission, so there's no need to
bounce them through the original task. Just set them up for retry
and issue retry directly instead of going over task_work.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-08-27 16:48:34 -06:00
Jens Axboe
eefdf30f3d io_uring: fix IOPOLL -EAGAIN retries
This normally isn't hit, as polling is mostly done on NVMe with deep
queue depths. But if we do run into request starvation, we need to
ensure that retries are properly serialized.

Reported-by: Andres Freund <andres@anarazel.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-08-27 16:40:29 -06:00
Gustavo A. R. Silva
c165a08d2b arm64/cpuinfo: Remove unnecessary fallthrough annotation
Fallthrough annotations for consecutive default and case labels
are not necessary.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-27 15:44:32 -05:00