Commit Graph

855900 Commits

Author SHA1 Message Date
Helge Deller
5fa1659105 parisc: Disable HP HSC-PCI Cards to prevent kernel crash
The HP Dino PCI controller chip can be used in two variants: as on-board
controller (e.g. in B160L), or on an Add-On card ("Card-Mode") to bridge
PCI components to systems without a PCI bus, e.g. to a HSC/GSC bus.  One
such Add-On card is the HP HSC-PCI Card which has one or more DEC Tulip
PCI NIC chips connected to the on-card Dino PCI controller.

Dino in Card-Mode has a big disadvantage: All PCI memory accesses need
to go through the DINO_MEM_DATA register, so Linux drivers will not be
able to use the ioremap() function. Without ioremap() many drivers will
not work, one example is the tulip driver which then simply crashes the
kernel if it tries to access the ports on the HP HSC card.

This patch disables the HP HSC card if it finds one, and as such
fixes the kernel crash on a HP D350/2 machine.

Signed-off-by: Helge Deller <deller@gmx.de>
Noticed-by: Phil Scarr <phil.scarr@pm.me>
Cc: stable@vger.kernel.org
2019-09-08 15:43:04 +02:00
Sven Schnelle
1191cf4986 parisc: add support for kexec_file_load() syscall
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-08 15:41:46 +02:00
Sven Schnelle
3be6e58ca1 parisc: wire up kexec_file_load syscall
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-08 15:37:37 +02:00
Sven Schnelle
fc697dc0c2 parisc: add kexec syscall support
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-08 15:37:04 +02:00
Sven Schnelle
507efd63d9 parisc: add __pdc_cpu_rendezvous()
When stopping SMP cpus send them into rendezvous, so we can
start them again later (when kexec'ing a new kernel).

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-08 15:19:58 +02:00
Jisheng Zhang
08e697808f kprobes/parisc: remove arch_kprobe_on_func_entry()
The common kprobes provides a weak implementation of
arch_kprobe_on_func_entry(). The parisc version is the same as the
common version, so remove it.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Acked-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-06 23:58:44 +02:00
Sven Schnelle
ea46a13ebf kexec_elf: support 32 bit ELF files
The powerpc version only supported 64 bit. Add some
code to switch decoding of fields during runtime so
we can kexec a 32 bit kernel from a 64 bit kernel and
vice versa.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-06 23:58:44 +02:00
Sven Schnelle
571ceb7d96 kexec_elf: remove unused variable in kexec_elf_load()
base was never assigned, so we can remove it.

Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-06 23:58:44 +02:00
Sven Schnelle
3bd9c3366e kexec_elf: remove Elf_Rel macro
It wasn't used anywhere, so lets drop it.

Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-06 23:58:43 +02:00
Sven Schnelle
10ba459f87 kexec_elf: remove PURGATORY_STACK_SIZE
It's not used anywhere so just drop it.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-06 23:58:43 +02:00
Sven Schnelle
5f71d97720 kexec_elf: remove parsing of section headers
We're not using them, so we can drop the parsing.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-06 23:58:43 +02:00
Sven Schnelle
d34e0ad3ea kexec_elf: change order of elf_*_to_cpu() functions
Change the order to have a 64/32/16 order, no functional change.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-06 23:58:43 +02:00
Sven Schnelle
175fca3bf9 kexec: add KEXEC_ELF
Right now powerpc provides an implementation to read elf files
with the kexec_file_load() syscall. Make that available as a public
kexec interface so it can be re-used on other architectures.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-06 23:58:43 +02:00
Helge Deller
544f448599 parisc: Save some bytes in dino driver
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-06 00:03:28 +02:00
Helge Deller
b0a26f11ee parisc: Drop comments which are already in pci.h
Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-05 16:41:11 +02:00
Helge Deller
ebee4b02d0 parisc: Convert eisa_enumerator to use pr_cont()
Clean up and beautify kernel output by using pr_cont() and printk
formats like %pR for resources.
This was noticed on a HP D350/2 machine.

Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-05 16:37:38 +02:00
Helge Deller
4ccac58e56 parisc: Avoid warning when loading hppb driver
ccio_request_resource() may fail to allocate regions for the hppb
driver. Do not print a misleading warning in this case.
This was noticed on a HP D350/2 machine.

Signed-off-by: Helge Deller <deller@gmx.de>
2019-09-05 16:35:12 +02:00
Helge Deller
a5ff2130a4 parisc: speed up flush_tlb_all_local with qemu
When started in qemu, we know that qemu will drop all local TLB entries
on any pxtlbe instruction. So, if we detect qemu, replace the whole
flush_tlb_all_local function by one pdtlbe instruction.

Signed-off-by: Helge Deller <deller@gmx.de>
2019-08-12 19:17:40 +02:00
Helge Deller
82992fc70f parisc: Add ALTERNATIVE_CODE() and ALT_COND_RUN_ON_QEMU
The macro ALTERNATIVE_CODE() allows assembly code to patch in a series
of new assembler statements given at a specific start address.
The ALT_COND_RUN_ON_QEMU condition is true if the kernel is started in a
qemu emulation.

Signed-off-by: Helge Deller <deller@gmx.de>
2019-08-12 19:17:39 +02:00
Helge Deller
83af58f806 parisc: Add assembly implementations for memset, strlen, strcpy, strncpy and strcat
Add performance-optimized versions of some string functions.

Signed-off-by: Helge Deller <deller@gmx.de>
Tested-by: Sven Schnelle <svens@stackframe.org>
2019-08-03 08:56:57 +02:00
Sven Schnelle
ec4d396b63 parisc: trigger die notifier chain in parisc_terminate()
This will trigger kgdb/kdb when they are enabled.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-08-03 08:56:57 +02:00
Sven Schnelle
c8bbbc67cb parisc: Update feature list
Add jump labels to the list of supported features.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-08-03 08:56:57 +02:00
Sven Schnelle
52a22e6c27 parisc/ftrace: Add KPROBES_ON_FTRACE
Allow KPROBES to use the ftrace infrastructure on PA-RISC.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-08-03 08:56:57 +02:00
Sven Schnelle
d562aca37a parisc/ftrace: Add ARCH_SUPPORTS_FTRACE_OPS support
Pass ftrace_ops to ftrace functions to ftrace_trace_function().

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-08-03 08:56:57 +02:00
Linus Torvalds
dcb8cfbd8f xen: fixes for 5.3-rc3
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Merge tag 'for-linus-5.3a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

 - a small cleanup

 - a fix for a build error on ARM with some configs

 - a fix of a patch for the Xen gntdev driver

 - three patches for fixing a potential problem in the swiotlb-xen
   driver which Konrad was fine with me carrying them through the Xen
   tree

* tag 'for-linus-5.3a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/swiotlb: remember having called xen_create_contiguous_region()
  xen/swiotlb: simplify range_straddles_page_boundary()
  xen/swiotlb: fix condition for calling xen_destroy_contiguous_region()
  xen: avoid link error on ARM
  xen/gntdev.c: Replace vm_map_pages() with vm_map_pages_zero()
  xen/pciback: remove set but not used variable 'old_state'
2019-08-02 15:26:48 -07:00
Linus Torvalds
a507f25d1c arm64 fixes:
- Update the compat layer to allow single-byte watchpoints on all
   addresses (similar to the native support)
 
 - arm_pmu: fix the restoration of the counters on the
   CPU_PM_ENTER_FAILED path
 
 - Fix build regression with vDSO and Makefile not stripping
   CROSS_COMPILE_COMPAT
 
 - Fix the CTR_EL0 (cache type register) sanitisation on heterogeneous
   machines (e.g. big.LITTLE)
 
 - Fix the interrupt controller priority mask value when pseudo-NMIs are
   enabled
 
 - arm64 kprobes fixes: recovering of the PSTATE.D flag in the
   single-step exception handler, NOKPROBE annotations for unwind_frame()
   and walk_stackframe(), remove unneeded rcu_read_lock/unlock from debug
   handlers
 
 - Several gcc fall-through warnings
 
 - Unused variable warnings
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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:

 - Update the compat layer to allow single-byte watchpoints on all
   addresses (similar to the native support)

 - arm_pmu: fix the restoration of the counters on the
   CPU_PM_ENTER_FAILED path

 - Fix build regression with vDSO and Makefile not stripping
   CROSS_COMPILE_COMPAT

 - Fix the CTR_EL0 (cache type register) sanitisation on heterogeneous
   machines (e.g. big.LITTLE)

 - Fix the interrupt controller priority mask value when pseudo-NMIs are
   enabled

 - arm64 kprobes fixes: recovering of the PSTATE.D flag in the
   single-step exception handler, NOKPROBE annotations for
   unwind_frame() and walk_stackframe(), remove unneeded
   rcu_read_lock/unlock from debug handlers

 - Several gcc fall-through warnings

 - Unused variable warnings

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Make debug exception handlers visible from RCU
  arm64: kprobes: Recover pstate.D in single-step exception handler
  arm64/mm: fix variable 'tag' set but not used
  arm64/mm: fix variable 'pud' set but not used
  arm64: Remove unneeded rcu_read_lock from debug handlers
  arm64: unwind: Prohibit probing on return_address()
  arm64: Lower priority mask for GIC_PRIO_IRQON
  arm64/efi: fix variable 'si' set but not used
  arm64: cpufeature: Fix feature comparison for CTR_EL0.{CWG,ERG}
  arm64: vdso: Fix Makefile regression
  arm64: module: Mark expected switch fall-through
  arm64: smp: Mark expected switch fall-through
  arm64: hw_breakpoint: Fix warnings about implicit fallthrough
  drivers/perf: arm_pmu: Fix failure path in PM notifier
  arm64: compat: Allow single-byte watchpoints on all addresses
2019-08-02 15:23:27 -07:00
Linus Torvalds
9100fc5ae8 Merge branch 'parisc-5.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
 "A few small fixes for the parisc architecture:

   - Fix fall-through warnings in parisc math emu code

   - Fix vmlinuz linking failure with debug-enabled kernels

   - Fix a race condition in kernel live-patching code

   - Add missing archclean Makefile target & defconfig adjustments"

* 'parisc-5.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Add archclean Makefile target
  parisc: Strip debug info from kernel before creating compressed vmlinuz
  parisc: Fix build of compressed kernel even with debug enabled
  parisc: fix race condition in patching code
  parisc: rename default_defconfig to defconfig
  parisc: Fix fall-through warnings in fpudispatch.c
  parisc: Mark expected switch fall-throughs in fault.c
2019-08-02 15:18:51 -07:00
Linus Torvalds
4dd68199f3 s390 updates for 5.3-rc3
- Default configs updates.
 
  - Minor qdio cleanup.
 
  - Sparse warnings fixes.
 
  - Implicit-fallthrough warnings fixes.
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Merge tag 's390-5.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

 - Default configs updates

 - Minor qdio cleanup

 - Sparse warnings fixes

 - Implicit-fallthrough warnings fixes

* tag 's390-5.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/zcrypt: adjust switch fall through comments for -Wimplicit-fallthrough
  vfio-ccw: make vfio_ccw_async_region_ops static
  s390/3215: add switch fall through comment for -Wimplicit-fallthrough
  s390/tape: add fallthrough annotations
  s390/mm: add fallthrough annotations
  s390/mm: make gmap_test_and_clear_dirty_pmd static
  s390/kexec: add missing include to machine_kexec_reloc.c
  s390/perf: make cf_diag_csd static
  s390/lib: add missing include
  s390/boot: add missing declarations and includes
  s390: update configs
  s390: clean up qdio.h
2019-08-02 15:13:27 -07:00
Linus Torvalds
6e6d05360b SCSI fixes on 20190802
Seven fixes to four drivers with no core changes.  The mpt3sas one is
 theoretical until we get a CPU that goes up to 64 bits physical, the
 qla2xxx one fixes an oops in a driver initialization error leg and the
 others are mostly cosmetic.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Seven fixes to four drivers with no core changes.

  The mpt3sas one is theoretical until we get a CPU that goes up to 64
  bits physical, the qla2xxx one fixes an oops in a driver
  initialization error leg and the others are mostly cosmetic"

[ The fcoe patches may be worth highlighting - they may be "just"
  cleanups, but they simplify and fix the odd fc_rport_priv structure
  handling rules so that the new gcc-9 warnings about memset crossing
  structure boundaries are gone.

  The old code was hard for humans to understand too, and really
  confused the compiler sanity checks  - Linus ]

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qla2xxx: Fix possible fcport null-pointer dereferences
  scsi: mpt3sas: Use 63-bit DMA addressing on SAS35 HBA
  scsi: hpsa: remove printing internal cdb on tag collision
  scsi: hpsa: correct scsi command status issue after reset
  scsi: fcoe: pass in fcoe_rport structure instead of fc_rport_priv
  scsi: fcoe: Embed fc_rport_priv in fcoe_rport structure
  scsi: libfc: Whitespace cleanup in libfc.h
2019-08-02 14:46:33 -07:00
Linus Torvalds
10e5ddd71f for-linus-20190802
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Merge tag 'for-linus-20190802' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Here's a small collection of fixes that should go into this series.
  This contains:

   - io_uring potential use-after-free fix (Jackie)

   - loop regression fix (Jan)

   - O_DIRECT fragmented bio regression fix (Damien)

   - Mark Denis as the new floppy maintainer (Denis)

   - ataflop switch fall-through annotation (Gustavo)

   - libata zpodd overflow fix (Kees)

   - libata ahci deferred probe fix (Miquel)

   - nbd invalidation BUG_ON() fix (Munehisa)

   - dasd endless loop fix (Stefan)"

* tag 'for-linus-20190802' of git://git.kernel.dk/linux-block:
  s390/dasd: fix endless loop after read unit address configuration
  block: Fix __blkdev_direct_IO() for bio fragments
  MAINTAINERS: floppy: take over maintainership
  nbd: replace kill_bdev() with __invalidate_device() again
  ata: libahci: do not complain in case of deferred probe
  io_uring: fix KASAN use after free in io_sq_wq_submit_work
  loop: Fix mount(2) failure due to race with LOOP_SET_FD
  libata: zpodd: Fix small read overflow in zpodd_get_mech_type()
  ataflop: Mark expected switch fall-through
2019-08-02 14:31:26 -07:00
Linus Torvalds
b2c742373d Fix NULL pointer and various whitespace issues with DM's recent DAX code
changes from commit in 5.3 merge.
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Merge tag 'for-5.3/dm-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:
 "Fix NULL pointer and various whitespace issues with DM's recent DAX
  code changes from commit in 5.3 merge"

* tag 'for-5.3/dm-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm table: fix various whitespace issues with recent DAX code
  dm table: fix dax_dev NULL dereference in device_synchronous()
2019-08-02 14:28:40 -07:00
Linus Torvalds
b07042ca32 Pull request for 5.3-rc2
- A couple Spectre V1 fixes (umad, hfi1)
 - Fix a tricky deadlock in the rdma core code with refcounting instead
   of locks (client removal patches)
 - Build errors (hns)
 - Fix a scheduling while atomic issue (mlx5)
 - Use after free fix (mad)
 - Fix error path return code (hns)
 - Null deref fix (siw_crypto_hash)
 - A few other misc. minor fixes
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Doug Ledford:
 "Here's our second -rc pull request. Nothing particularly special in
  this one. The client removal deadlock fix is kindy tricky, but we had
  multiple eyes on it and no one could find a fault in it. A couple
  Spectre V1 fixes too. Otherwise, all just normal -rc fodder:

   - A couple Spectre V1 fixes (umad, hfi1)

   - Fix a tricky deadlock in the rdma core code with refcounting
     instead of locks (client removal patches)

   - Build errors (hns)

   - Fix a scheduling while atomic issue (mlx5)

   - Use after free fix (mad)

   - Fix error path return code (hns)

   - Null deref fix (siw_crypto_hash)

   - A few other misc. minor fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/hns: Fix error return code in hns_roce_v1_rsv_lp_qp()
  RDMA/mlx5: Release locks during notifier unregister
  IB/hfi1: Fix Spectre v1 vulnerability
  IB/mad: Fix use-after-free in ib mad completion handling
  RDMA/restrack: Track driver QP types in resource tracker
  IB/mlx5: Fix MR registration flow to use UMR properly
  RDMA/devices: Remove the lock around remove_client_context
  RDMA/devices: Do not deadlock during client removal
  IB/core: Add mitigation for Spectre V1
  Do not dereference 'siw_crypto_shash' before checking
  RDMA/qedr: Fix the hca_type and hca_rev returned in device attributes
  RDMA/hns: Fix build error
2019-08-02 14:23:24 -07:00
Linus Torvalds
d38c3fa6f9 for-5.3-rc2-tag
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Merge tag 'for-5.3-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - tiny race window during 2 transactions aborting at the same time can
   accidentally lead to a commit

 - regression fix, possible deadlock during fiemap

 - fix for an old bug when incremental send can fail on a file that has
   been deduplicated in a special way

* tag 'for-5.3-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  Btrfs: fix deadlock between fiemap and transaction commits
  Btrfs: fix race leading to fs corruption after transaction abort
  Btrfs: fix incremental send failure after deduplication
2019-08-02 14:19:41 -07:00
Linus Torvalds
97b00aff2c Fix gfs2 cluster coherency bug
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Merge tag 'gfs2-v5.3-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 fix from Andreas Gruenbacher:
 "Fix gfs2 cluster coherency bug"

* tag 'gfs2-v5.3-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: Inode dirtying fix
2019-08-02 09:02:58 -07:00
Linus Torvalds
755f1fed27 Power management fix for 5.3-rc3
Fix recent regression affecting ACPI device power management.
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Merge tag 'pm-5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix recent regression affecting ACPI device power management"

* tag 'pm-5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: PM: Fix regression in acpi_device_set_power()
2019-08-02 08:55:28 -07:00
Linus Torvalds
75cdf416b3 sound fixes for 5.3-rc3
- A further fix for syzcaller issues with USB-audio, addressing
   NULL dereference that was introduced by the recent fix
 - Avoid a long delay at boot with HD-audio when i915 module was
   built but not installed, found on some Debian systems
 - A fix of small race window at PCM draining
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Merge tag 'sound-5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:

 - A further fix for syzcaller issues with USB-audio, addressing NULL
   dereference that was introduced by the recent fix

 - Avoid a long delay at boot with HD-audio when i915 module was built
   but not installed, found on some Debian systems

 - A fix of small race window at PCM draining

* tag 'sound-5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb-audio: Fix gpf in snd_usb_pipe_sanity_check
  ALSA: pcm: fix lost wakeup event scenarios in snd_pcm_drain
  ALSA: hda: Fix 1-minute detection delay when i915 module is not available
2019-08-02 08:53:34 -07:00
Linus Torvalds
f26dbb2302 drm pull fixes for 5.3-rc3
amdgpu:
 	navi10 temperature and pstate fixes
 	vcn dynamic power management fix
 	CS ioctl error handling fix
 	debugfs info leak fix
 	amdkfd VegaM fix.
 
 msm:
 	dma sync call fix
 	mdp5 dsi command mode fix
 	fall-through fixes
 	disabled GPU fix
 
 nouveau:
 	regression fix for displayport MST support.
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Merge tag 'drm-fixes-2019-08-02' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Thanks to Daniel for handling the email the last couple of weeks, flus
  and break-ins combined to derail me. Surprised nothing materialised
  today to take me out again.

  Just more amdgpu navi fixes, msm fixes and a single nouveau regression
  fix:

  amdgpu:
   - navi10 temperature and pstate fixes
   - vcn dynamic power management fix
   - CS ioctl error handling fix
   - debugfs info leak fix
   - amdkfd VegaM fix

  msm:
   - dma sync call fix
   - mdp5 dsi command mode fix
   - fall-through fixes
   - disabled GPU fix

  nouveau:
   - regression fix for displayport MST support"

* tag 'drm-fixes-2019-08-02' of git://anongit.freedesktop.org/drm/drm:
  drm/nouveau: Only release VCPI slots on mode changes
  drm: msm: Fix add_gpu_components
  drm/msm: Annotate intentional switch statement fall throughs
  drm/msm: add support for per-CRTC max_vblank_count on mdp5
  drm/msm: Use the correct dma_sync calls in msm_gem
  drm/amd/powerplay: correct UVD/VCE/VCN power status retrieval
  drm/amd/powerplay: correct Navi10 VCN powergate control (v2)
  drm/amd/powerplay: support VCN powergate status retrieval for SW SMU
  drm/amd/powerplay: support VCN powergate status retrieval on Raven
  drm/amd/powerplay: add new sensor type for VCN powergate status
  drm/amdgpu: fix a potential information leaking bug
  drm/amdgpu: fix error handling in amdgpu_cs_process_fence_dep
  drm/amd/powerplay: enable SW SMU reset functionality
  drm/amd/powerplay: fix null pointer dereference around dpm state relates
  drm/amdgpu/powerplay: use proper revision id for navi
  drm/amd/powerplay: fix temperature granularity error in smu11
  drm/amd/powerplay: add callback function of get_thermal_temperature_range
  drm/amdkfd: Fix byte align on VegaM
2019-08-02 08:50:37 -07:00
Linus Torvalds
42d21900b3 A few fixes for code that came in during the merge window or
that started getting exercised differently this time around:
 
  - Select regmap MMIO kconfig in spreadtrum driver to avoid compile
    errors
  - Complete kerneldoc on devm_clk_bulk_get_optional()
  - Register an essential clk earlier on mediatek mt8183 SoCs so
    the clocksource driver can use it
  - Fix divisor math in the at91 driver
  - Plug a race in Renesas reset control logic
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "A few fixes for code that came in during the merge window or that
  started getting exercised differently this time around:

   - Select regmap MMIO kconfig in spreadtrum driver to avoid compile
     errors

   - Complete kerneldoc on devm_clk_bulk_get_optional()

   - Register an essential clk earlier on mediatek mt8183 SoCs so the
     clocksource driver can use it

   - Fix divisor math in the at91 driver

   - Plug a race in Renesas reset control logic"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: renesas: cpg-mssr: Fix reset control race condition
  clk: sprd: Select REGMAP_MMIO to avoid compile errors
  clk: mediatek: mt8183: Register 13MHz clock earlier for clocksource
  clk: Add missing documentation of devm_clk_bulk_get_optional() argument
  clk: at91: generated: Truncate divisor to GENERATED_MAX_DIV + 1
2019-08-02 08:47:28 -07:00
Linus Torvalds
234172f6bb add swiotlb support to arm
This fixes a cascade of regressions that originally started with
 the addition of the ia64 port, but only got fatal once we removed
 most uses of block layer bounce buffering in Linux 4.18.
 
 The reason is that while the original i386/PAE code that was the first
 architecture that supported > 4GB of memory without an iommu decided to
 leave bounce buffering to the subsystems, which in those days just mean
 block and networking as no one else consumer arbitrary userspace memory.
 
 Later with ia64, x86_64 and other ports we assumed that either an iommu
 or something that fakes it up ("software IOTLB" in beautiful Intel
 speak) is present and that subsystems can rely on that for dealing with
 addressing limitations in devices.   Except that the ARM LPAE scheme
 that added larger physical address to 32-bit ARM did not follow that
 scheme and thus only worked by chance and only for block and networking
 I/O directly to highmem.
 
 Long story, short fix - add swiotlb support to arm when build for LPAE
 platforms, which actuallys turns out to be pretty trivial with the
 modern dma-direct / swiotlb code to fix the Linux 4.18-ish regression.
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Merge tag 'arm-swiotlb-5.3' of git://git.infradead.org/users/hch/dma-mapping

Pull arm swiotlb support from Christoph Hellwig:
 "This fixes a cascade of regressions that originally started with the
  addition of the ia64 port, but only got fatal once we removed most
  uses of block layer bounce buffering in Linux 4.18.

  The reason is that while the original i386/PAE code that was the first
  architecture that supported > 4GB of memory without an iommu decided
  to leave bounce buffering to the subsystems, which in those days just
  mean block and networking as no one else consumed arbitrary userspace
  memory.

  Later with ia64, x86_64 and other ports we assumed that either an
  iommu or something that fakes it up ("software IOTLB" in beautiful
  Intel speak) is present and that subsystems can rely on that for
  dealing with addressing limitations in devices. Except that the ARM
  LPAE scheme that added larger physical address to 32-bit ARM did not
  follow that scheme and thus only worked by chance and only for block
  and networking I/O directly to highmem.

  Long story, short fix - add swiotlb support to arm when build for LPAE
  platforms, which actuallys turns out to be pretty trivial with the
  modern dma-direct / swiotlb code to fix the Linux 4.18-ish regression"

* tag 'arm-swiotlb-5.3' of git://git.infradead.org/users/hch/dma-mapping:
  arm: use swiotlb for bounce buffering on LPAE configs
  dma-mapping: check pfn validity in dma_common_{mmap,get_sgtable}
2019-08-02 08:44:33 -07:00
Linus Torvalds
35fca9f8a9 dma-mapping regression fixes for 5.3
- fix alignment issues introduced in the CMA allocation rework
    (Nicolin Chen)
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Merge tag 'dma-mapping-5.3-3' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping regression fixes from Christoph Hellwig:
 "Two related regression fixes for changes from this merge window to fix
  alignment issues introduced in the CMA allocation rework (Nicolin
  Chen)"

* tag 'dma-mapping-5.3-3' of git://git.infradead.org/users/hch/dma-mapping:
  dma-contiguous: page-align the size in dma_free_contiguous()
  dma-contiguous: do not overwrite align in dma_alloc_contiguous()
2019-08-02 08:41:11 -07:00
Vasily Gorbik
3cdd986067 s390/zcrypt: adjust switch fall through comments for -Wimplicit-fallthrough
Silence the following warnings when built with -Wimplicit-fallthrough=3
enabled by default since 5.3-rc2:
In file included from ./include/linux/preempt.h:11,
                 from ./include/linux/spinlock.h:51,
                 from ./include/linux/mmzone.h:8,
                 from ./include/linux/gfp.h:6,
                 from ./include/linux/slab.h:15,
                 from drivers/s390/crypto/ap_queue.c:13:
drivers/s390/crypto/ap_queue.c: In function 'ap_sm_recv':
./include/linux/list.h:577:2: warning: this statement may fall through [-Wimplicit-fallthrough=]
  577 |  for (pos = list_first_entry(head, typeof(*pos), member); \
      |  ^~~
drivers/s390/crypto/ap_queue.c:147:3: note: in expansion of macro 'list_for_each_entry'
  147 |   list_for_each_entry(ap_msg, &aq->pendingq, list) {
      |   ^~~~~~~~~~~~~~~~~~~
drivers/s390/crypto/ap_queue.c:155:2: note: here
  155 |  case AP_RESPONSE_NO_PENDING_REPLY:
      |  ^~~~
drivers/s390/crypto/zcrypt_msgtype6.c: In function 'convert_response_ep11_xcrb':
drivers/s390/crypto/zcrypt_msgtype6.c:871:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
  871 |   if (msg->cprbx.cprb_ver_id == 0x04)
      |      ^
drivers/s390/crypto/zcrypt_msgtype6.c:874:2: note: here
  874 |  default: /* Unknown response type, this should NEVER EVER happen */
      |  ^~~~~~~
drivers/s390/crypto/zcrypt_msgtype6.c: In function 'convert_response_rng':
drivers/s390/crypto/zcrypt_msgtype6.c:901:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
  901 |   if (msg->cprbx.cprb_ver_id == 0x02)
      |      ^
drivers/s390/crypto/zcrypt_msgtype6.c:907:2: note: here
  907 |  default: /* Unknown response type, this should NEVER EVER happen */
      |  ^~~~~~~
drivers/s390/crypto/zcrypt_msgtype6.c: In function 'convert_response_xcrb':
drivers/s390/crypto/zcrypt_msgtype6.c:838:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
  838 |   if (msg->cprbx.cprb_ver_id == 0x02)
      |      ^
drivers/s390/crypto/zcrypt_msgtype6.c:844:2: note: here
  844 |  default: /* Unknown response type, this should NEVER EVER happen */
      |  ^~~~~~~
drivers/s390/crypto/zcrypt_msgtype6.c: In function 'convert_response_ica':
drivers/s390/crypto/zcrypt_msgtype6.c:801:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
  801 |   if (msg->cprbx.cprb_ver_id == 0x02)
      |      ^
drivers/s390/crypto/zcrypt_msgtype6.c:808:2: note: here
  808 |  default: /* Unknown response type, this should NEVER EVER happen */
      |  ^~~~~~~

Acked-by: Patrick Steuer <patrick.steuer@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-08-02 13:58:23 +02:00
Masami Hiramatsu
d8bb6718c4 arm64: Make debug exception handlers visible from RCU
Make debug exceptions visible from RCU so that synchronize_rcu()
correctly track the debug exception handler.

This also introduces sanity checks for user-mode exceptions as same
as x86's ist_enter()/ist_exit().

The debug exception can interrupt in idle task. For example, it warns
if we put a kprobe on a function called from idle task as below.
The warning message showed that the rcu_read_lock() caused this
problem. But actually, this means the RCU is lost the context which
is already in NMI/IRQ.

  /sys/kernel/debug/tracing # echo p default_idle_call >> kprobe_events
  /sys/kernel/debug/tracing # echo 1 > events/kprobes/enable
  /sys/kernel/debug/tracing # [  135.122237]
  [  135.125035] =============================
  [  135.125310] WARNING: suspicious RCU usage
  [  135.125581] 5.2.0-08445-g9187c508bdc7 #20 Not tainted
  [  135.125904] -----------------------------
  [  135.126205] include/linux/rcupdate.h:594 rcu_read_lock() used illegally while idle!
  [  135.126839]
  [  135.126839] other info that might help us debug this:
  [  135.126839]
  [  135.127410]
  [  135.127410] RCU used illegally from idle CPU!
  [  135.127410] rcu_scheduler_active = 2, debug_locks = 1
  [  135.128114] RCU used illegally from extended quiescent state!
  [  135.128555] 1 lock held by swapper/0/0:
  [  135.128944]  #0: (____ptrval____) (rcu_read_lock){....}, at: call_break_hook+0x0/0x178
  [  135.130499]
  [  135.130499] stack backtrace:
  [  135.131192] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.2.0-08445-g9187c508bdc7 #20
  [  135.131841] Hardware name: linux,dummy-virt (DT)
  [  135.132224] Call trace:
  [  135.132491]  dump_backtrace+0x0/0x140
  [  135.132806]  show_stack+0x24/0x30
  [  135.133133]  dump_stack+0xc4/0x10c
  [  135.133726]  lockdep_rcu_suspicious+0xf8/0x108
  [  135.134171]  call_break_hook+0x170/0x178
  [  135.134486]  brk_handler+0x28/0x68
  [  135.134792]  do_debug_exception+0x90/0x150
  [  135.135051]  el1_dbg+0x18/0x8c
  [  135.135260]  default_idle_call+0x0/0x44
  [  135.135516]  cpu_startup_entry+0x2c/0x30
  [  135.135815]  rest_init+0x1b0/0x280
  [  135.136044]  arch_call_rest_init+0x14/0x1c
  [  135.136305]  start_kernel+0x4d4/0x500
  [  135.136597]

So make debug exception visible to RCU can fix this warning.

Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Acked-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
2019-08-02 11:56:01 +01:00
Masami Hiramatsu
b3980e4852 arm64: kprobes: Recover pstate.D in single-step exception handler
kprobes manipulates the interrupted PSTATE for single step, and
doesn't restore it. Thus, if we put a kprobe where the pstate.D
(debug) masked, the mask will be cleared after the kprobe hits.

Moreover, in the most complicated case, this can lead a kernel
crash with below message when a nested kprobe hits.

[  152.118921] Unexpected kernel single-step exception at EL1

When the 1st kprobe hits, do_debug_exception() will be called.
At this point, debug exception (= pstate.D) must be masked (=1).
But if another kprobes hits before single-step of the first kprobe
(e.g. inside user pre_handler), it unmask the debug exception
(pstate.D = 0) and return.
Then, when the 1st kprobe setting up single-step, it saves current
DAIF, mask DAIF, enable single-step, and restore DAIF.
However, since "D" flag in DAIF is cleared by the 2nd kprobe, the
single-step exception happens soon after restoring DAIF.

This has been introduced by commit 7419333fa1 ("arm64: kprobe:
Always clear pstate.D in breakpoint exception handler")

To solve this issue, this stores all DAIF bits and restore it
after single stepping.

Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Fixes: 7419333fa1 ("arm64: kprobe: Always clear pstate.D in breakpoint exception handler")
Reviewed-by: James Morse <james.morse@arm.com>
Tested-by: James Morse <james.morse@arm.com>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
2019-08-02 11:55:50 +01:00
Stefan Haberland
41995342b4 s390/dasd: fix endless loop after read unit address configuration
After getting a storage server event that causes the DASD device driver
to update its unit address configuration during a device shutdown there is
the possibility of an endless loop in the device driver.

In the system log there will be ongoing DASD error messages with RC: -19.

The reason is that the loop starting the ruac request only terminates when
the retry counter is decreased to 0. But in the sleep_on function there are
early exit paths that do not decrease the retry counter.

Prevent an endless loop by handling those cases separately.

Remove the unnecessary do..while loop since the sleep_on function takes
care of retries by itself.

Fixes: 8e09f21574 ("[S390] dasd: add hyper PAV support to DASD device driver, part 1")
Cc: stable@vger.kernel.org # 2.6.25+
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-08-01 20:46:14 -06:00
Dave Airlie
f8981e0309 - Fix the dma_sync calls applied last week (Rob)
- Fix mdp5 dsi command mode (Brian)
 - Squash fall through warnings (Jordan)
 - Don't add disabled gpu nodes to the of device list (Jeffrey)
 
 Cc: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
 Cc: Jordan Crouse <jcrouse@codeaurora.org>
 Cc: Brian Masney <masneyb@onstation.org>
 Cc: Rob Clark <robdclark@chromium.org>
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Merge tag 'msm-fixes-2019_08_01' of https://gitlab.freedesktop.org/drm/msm into drm-fixes

- Fix the dma_sync calls applied last week (Rob)
- Fix mdp5 dsi command mode (Brian)
- Squash fall through warnings (Jordan)
- Don't add disabled gpu nodes to the of device list (Jeffrey)

Cc: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Cc: Jordan Crouse <jcrouse@codeaurora.org>
Cc: Brian Masney <masneyb@onstation.org>
Cc: Rob Clark <robdclark@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

# gpg: Signature made Fri 02 Aug 2019 05:54:27 AM AEST
# gpg:                using RSA key 96F70DFDA84A070A
# gpg: Can't check signature: public key not found
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20190801200439.GV104440@art_vandelay
2019-08-02 10:17:25 +10:00
Lyude Paul
412e85b605 drm/nouveau: Only release VCPI slots on mode changes
Looks like a regression got introduced into nv50_mstc_atomic_check()
that somehow didn't get found until now. If userspace changes
crtc_state->active to false but leaves the CRTC enabled, we end up
calling drm_dp_atomic_find_vcpi_slots() using the PBN calculated in
asyh->dp.pbn. However, if the display is inactive we end up calculating
a PBN of 0, which inadvertently causes us to have an allocation of 0.
>From there, if userspace then disables the CRTC afterwards we end up
accidentally attempting to free the VCPI twice:

WARNING: CPU: 0 PID: 1484 at drivers/gpu/drm/drm_dp_mst_topology.c:3336
drm_dp_atomic_release_vcpi_slots+0x87/0xb0 [drm_kms_helper]
RIP: 0010:drm_dp_atomic_release_vcpi_slots+0x87/0xb0 [drm_kms_helper]
Call Trace:
 drm_atomic_helper_check_modeset+0x3f3/0xa60 [drm_kms_helper]
 ? drm_atomic_check_only+0x43/0x780 [drm]
 drm_atomic_helper_check+0x15/0x90 [drm_kms_helper]
 nv50_disp_atomic_check+0x83/0x1d0 [nouveau]
 drm_atomic_check_only+0x54d/0x780 [drm]
 ? drm_atomic_set_crtc_for_connector+0xec/0x100 [drm]
 drm_atomic_commit+0x13/0x50 [drm]
 drm_atomic_helper_set_config+0x81/0x90 [drm_kms_helper]
 drm_mode_setcrtc+0x194/0x6a0 [drm]
 ? vprintk_emit+0x16a/0x230
 ? drm_ioctl+0x163/0x390 [drm]
 ? drm_mode_getcrtc+0x180/0x180 [drm]
 drm_ioctl_kernel+0xaa/0xf0 [drm]
 drm_ioctl+0x208/0x390 [drm]
 ? drm_mode_getcrtc+0x180/0x180 [drm]
 nouveau_drm_ioctl+0x63/0xb0 [nouveau]
 do_vfs_ioctl+0x405/0x660
 ? recalc_sigpending+0x17/0x50
 ? _copy_from_user+0x37/0x60
 ksys_ioctl+0x5e/0x90
 ? exit_to_usermode_loop+0x92/0xe0
 __x64_sys_ioctl+0x16/0x20
 do_syscall_64+0x59/0x190
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
WARNING: CPU: 0 PID: 1484 at drivers/gpu/drm/drm_dp_mst_topology.c:3336
drm_dp_atomic_release_vcpi_slots+0x87/0xb0 [drm_kms_helper]
---[ end trace 4c395c0c51b1f88d ]---
[drm:drm_dp_atomic_release_vcpi_slots [drm_kms_helper]] *ERROR* no VCPI for
[MST PORT:00000000e288eb7d] found in mst state 000000008e642070

So, fix this by doing what we probably should have done from the start: only
call drm_dp_atomic_find_vcpi_slots() when crtc_state->mode_changed is set, so
that VCPI allocations remain for as long as the CRTC is enabled.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Fixes: 232c9eec41 ("drm/nouveau: Use atomic VCPI helpers for MST")
Cc: Lyude Paul <lyude@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Airlie <airlied@redhat.com>
Cc: Jerry Zuo <Jerry.Zuo@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Juston Li <juston.li@intel.com>
Cc: Karol Herbst <karolherbst@gmail.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: <stable@vger.kernel.org> # v5.1+
Acked-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190801220216.15323-1-lyude@redhat.com
2019-08-02 09:49:37 +10:00
Dave Airlie
4b381ee25d Merge tag 'drm-fixes-5.3-2019-07-31' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
drm-fixes-5.3-2019-07-31:

amdgpu:
- Fix temperature granularity for navi
- Fix stable pstate setting for navi
- Fix VCN DPM enablement on navi
- Fix error handling on CS ioctl when processing dependencies
- Fix possible information leak in debugfs

amdkfd:
- fix memory alignment for VegaM

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190731191648.25729-1-alexander.deucher@amd.com
2019-08-02 09:35:40 +10:00
Rafael J. Wysocki
42787ed796 ACPI: PM: Fix regression in acpi_device_set_power()
Commit f850a48a07 ("ACPI: PM: Allow transitions to D0 to occur in
special cases") overlooked the fact that acpi_power_transition() may
change the power.state value for the target device and if that
happens, it may confuse acpi_device_set_power() and cause it to
omit the _PS0 evaluation which on some systems is necessary to
change power states of devices from low-power to D0.

Fix that by saving the current value of power.state for the
target device before passing it to acpi_power_transition() and
using the saved value in a subsequent check.

Fixes: f850a48a07 ("ACPI: PM: Allow transitions to D0 to occur in special cases")
Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reported-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Mario Limonciello <mario.limonciello@dell.com>
2019-08-01 23:39:17 +02:00
Damien Le Moal
0eb6ddfb86 block: Fix __blkdev_direct_IO() for bio fragments
The recent fix to properly handle IOCB_NOWAIT for async O_DIRECT IO
(patch 6a43074e2f) introduced two problems with BIO fragment handling
for direct IOs:
1) The dio size processed is calculated by incrementing the ret variable
by the size of the bio fragment issued for the dio. However, this size
is obtained directly from bio->bi_iter.bi_size AFTER the bio submission
which may result in referencing the bi_size value after the bio
completed, resulting in an incorrect value use.
2) The ret variable is not incremented by the size of the last bio
fragment issued for the bio, leading to an invalid IO size being
returned to the user.

Fix both problem by using dio->size (which is incremented before the bio
submission) to update the value of ret after bio submissions, including
for the last bio fragment issued.

Fixes: 6a43074e2f ("block: properly handle IOCB_NOWAIT for async O_DIRECT IO")
Reported-by: Masato Suzuki <masato.suzuki@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-08-01 13:51:18 -06:00
Wei Yongjun
020fb3bebc RDMA/hns: Fix error return code in hns_roce_v1_rsv_lp_qp()
Fix to return error code -ENOMEM from the rdma_zalloc_drv_obj() error
handling case instead of 0, as done elsewhere in this function.

Fixes: e8ac9389f0 ("RDMA: Fix allocation failure on pointer pd")
Fixes: 21a428a019 ("RDMA: Handle PD allocations by IB/core")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20190801012725.150493-1-weiyongjun1@huawei.com
Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-08-01 12:53:53 -04:00