Commit Graph

841793 Commits

Author SHA1 Message Date
Qian Cai
919aef44d7 x86/efi: fix a -Wtype-limits compilation warning
Compiling a kernel with W=1 generates this warning,

arch/x86/platform/efi/quirks.c:731:16: warning: comparison of unsigned
expression >= 0 is always true [-Wtype-limits]

Fixes: 3425d934fc ("efi/x86: Handle page faults occurring while running ...")
Signed-off-by: Qian Cai <cai@lca.pw>
Acked-by: "Prakhya, Sai Praneeth" <sai.praneeth.prakhya@intel.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2019-06-21 17:52:23 +02:00
Dave Airlie
5eab9cf87b drm/imx: ipu-v3 image converter fixes
This series fixes input buffer alignment and downsizer configuration
 to adhere to IPU mem2mem CSC/scaler hardware restrictions in certain
 downscaling ratios.
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Merge tag 'imx-drm-fixes-2019-06-20' of git://git.pengutronix.de/git/pza/linux into drm-fixes

drm/imx: ipu-v3 image converter fixes

This series fixes input buffer alignment and downsizer configuration
to adhere to IPU mem2mem CSC/scaler hardware restrictions in certain
downscaling ratios.

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

From: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1561040798.14349.20.camel@pengutronix.de
2019-06-21 11:44:24 +10:00
Dave Airlie
91cbf5d236 Merge tag 'drm-intel-fixes-2019-06-20' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v5.2-rc6:
- GVT: Fix reserved PVINFO register write (Weinan)
- Avoid clobbering M/N values in fastset fuzzy checks (Ville)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87pnn8sbdp.fsf@intel.com
2019-06-21 11:39:15 +10:00
Dave Airlie
ea37e1a35c panfrost- Only unmap BO's if they're mapped (Boris)
core- Handle buffer desc copy_to_user failure properly (Dan)
 
 Cc: Boris Brezillon <boris.brezillon@collabora.com>
 Cc: Dan Carpenter <dan.carpenter@oracle.com>
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Merge tag 'drm-misc-fixes-2019-06-19' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

panfrost- Only unmap BO's if they're mapped (Boris)
core- Handle buffer desc copy_to_user failure properly (Dan)

Cc: Boris Brezillon <boris.brezillon@collabora.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20190619192745.GA145841@art_vandelay
2019-06-21 11:37:05 +10:00
Dave Airlie
47e3c4c964 Merge branch 'vmwgfx-fixes-5.2' of git://people.freedesktop.org/~thomash/linux into drm-fixes
A couple of fixes for vmwgfx. Two fixes for a DMA sg-list debug warning
message. These are not cc'd stable since there is no evidence of actual
breakage.
On fix for the high-bandwidth backdoor port which is cc'd stable due to
upcoming hardware, on which the code would otherwise break.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Hellstrom <VMware> <thomas@shipmail.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190618072255.2720-1-thomas@shipmail.org
2019-06-21 11:28:22 +10:00
Jason A. Donenfeld
c5d0e49e8d ARM: 8867/1: vdso: pass --be8 to linker if necessary
The commit fe00e50b2d ("ARM: 8858/1: vdso: use $(LD) instead of $(CC)
to link VDSO") removed the passing of CFLAGS, since ld doesn't take
those directly. However, prior, big-endian ARM was relying on gcc to
translate its -mbe8 option into ld's --be8 option. Lacking this, ld
generated be32 code, making the VDSO generate SIGILL when called by
userspace.

This commit passes --be8 if CONFIG_CPU_ENDIAN_BE8 is enabled.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-06-20 22:28:52 +01:00
Linus Torvalds
4ae004a9bc overlayfs fixes for 5.2-rc6
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Merge tag 'ovl-fixes-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs

Pull overlayfs fixes from Miklos Szeredi:
 "Fix two regressions in this cycle, and a couple of older bugs"

* tag 'ovl-fixes-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: make i_ino consistent with st_ino in more cases
  ovl: fix typo in MODULE_PARM_DESC
  ovl: fix bogus -Wmaybe-unitialized warning
  ovl: don't fail with disconnected lower NFS
  ovl: fix wrong flags check in FS_IOC_FS[SG]ETXATTR ioctls
2019-06-20 14:19:34 -07:00
Linus Torvalds
b910f6a7cc fuse fixes for 5.2-rc6
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Merge tag 'fuse-fixes-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

Pull fuse fix from Miklos Szeredi:
 "Just a single revert, fixing a regression in -rc1"

* tag 'fuse-fixes-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  Revert "fuse: require /dev/fuse reads to have enough buffer capacity"
2019-06-20 14:16:16 -07:00
Linus Torvalds
b3e978337b Fixes for ARM and x86, plus selftest patches and nicer structs
for nested state save/restore.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "Fixes for ARM and x86, plus selftest patches and nicer structs for
  nested state save/restore"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: nVMX: reorganize initial steps of vmx_set_nested_state
  KVM: arm/arm64: Fix emulated ptimer irq injection
  tests: kvm: Check for a kernel warning
  kvm: tests: Sort tests in the Makefile alphabetically
  KVM: x86/mmu: Allocate PAE root array when using SVM's 32-bit NPT
  KVM: x86: Modify struct kvm_nested_state to have explicit fields for data
  KVM: fix typo in documentation
  KVM: nVMX: use correct clean fields when copying from eVMCS
  KVM: arm/arm64: vgic: Fix kvm_device leak in vgic_its_destroy
  KVM: arm64: Filter out invalid core register IDs in KVM_GET_REG_LIST
  KVM: arm64: Implement vq_present() as a macro
2019-06-20 13:50:37 -07:00
Jan Kara
240b4cc8fd scsi: vmw_pscsi: Fix use-after-free in pvscsi_queue_lck()
Once we unlock adapter->hw_lock in pvscsi_queue_lck() nothing prevents just
queued scsi_cmnd from completing and freeing the request. Thus cmd->cmnd[0]
dereference can dereference already freed request leading to kernel crashes
or other issues (which one of our customers observed). Store cmd->cmnd[0]
in a local variable before unlocking adapter->hw_lock to fix the issue.

CC: <stable@vger.kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-06-20 16:34:02 -04:00
Linus Torvalds
e929387449 arm64 fixes for -rc6
- Fix use of #include in UAPI headers for compatability with musl libc
 
 - Update email addresses in MAINTAINERS
 
 - Fix initialisation of pgd_cache due to name collision with weak symbol
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "This is mainly a couple of email address updates to MAINTAINERS, but
  we've also fixed a UAPI build issue with musl libc and an accidental
  double-initialisation of our pgd_cache due to a naming conflict with a
  weak symbol.

  There are a couple of outstanding issues that have been reported, but
  it doesn't look like they're new and we're still a long way off from
  fully debugging them.

  Summary:

   - Fix use of #include in UAPI headers for compatability with musl libc

   - Update email addresses in MAINTAINERS

   - Fix initialisation of pgd_cache due to name collision with weak symbol"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64/mm: don't initialize pgd_cache twice
  MAINTAINERS: Update my email address
  arm64/sve: <uapi/asm/ptrace.h> should not depend on <uapi/linux/prctl.h>
  arm64: ssbd: explicitly depend on <linux/prctl.h>
  MAINTAINERS: Update my email address to use @kernel.org
2019-06-20 12:04:57 -07:00
Linus Torvalds
a409de6162 s390 updates for 5.2-rc6
- Disable address-of-packed-member warning in s390 specific boot code
    to get rid of a gcc9 warning which otherwise is already disabled
    for the whole kernel.
 
  - Fix yet another compiler error seen with CONFIG_OPTIMIZE_INLINING
    enabled.
 
  - Fix memory leak in vfio-ccw code on module exit.
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Merge tag 's390-5.2-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Heiko Carstens:

 - Disable address-of-packed-member warning in s390 specific boot code
   to get rid of a gcc9 warning which otherwise is already disabled for
   the whole kernel.

 - Fix yet another compiler error seen with CONFIG_OPTIMIZE_INLINING
   enabled.

 - Fix memory leak in vfio-ccw code on module exit.

* tag 's390-5.2-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  vfio-ccw: Destroy kmem cache region on module exit
  s390/ctl_reg: mark __ctl_set_bit and __ctl_clear_bit as __always_inline
  s390/boot: disable address-of-packed-member warning
2019-06-20 12:03:41 -07:00
Linus Torvalds
d72558b2b3 \n
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Merge tag 'for_v5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull two misc vfs fixes from Jan Kara:
 "One small quota fix fixing spurious EDQUOT errors and one fanotify fix
  fixing a bug in the new fanotify FID reporting code"

* tag 'for_v5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fanotify: update connector fsid cache on add mark
  quota: fix a problem about transfer quota
2019-06-20 10:12:53 -07:00
David Howells
2cd42d19cf afs: Fix setting of i_blocks
The setting of i_blocks, which is calculated from i_size, has got
accidentally misordered relative to the setting of i_size when initially
setting up an inode.  Further, i_blocks isn't updated by afs_apply_status()
when the size is updated.

To fix this, break the i_size/i_blocks setting out into a helper function
and call it from both places.

Fixes: a58823ac45 ("afs: Fix application of status and callback to be under same lock")
Signed-off-by: David Howells <dhowells@redhat.com>
2019-06-20 18:12:02 +01:00
Linus Torvalds
6331d118ac MMC core:
- Make switch to eMMC HS400 more robust for some controllers
  - Add two SDIO func API to manage re-tuning constraints
  - Prevent processing SDIO IRQs when the card is suspended
 
 MMC host:
  - sdhi: Disallow broken HS400 for M3-W ES1.2, RZ/G2M and V3H
  - mtk-sd: Fixup support for SDIO IRQs
  - sdhci-pci-o2micro: Fixup support for tuning
 
 Wireless BRCMFMAC (SDIO):
  - Deal with expected transmission errors related to the idle states
    (handled by the Always-On-Subsystem or AOS) on the SDIO-based WiFi on
    rk3288-veyron-minnie, rk3288-veyron-speedy and rk3288-veyron-mickey.
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Merge tag 'mmc-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "Here's quite a few MMC fixes intended for v5.2-rc6. This time it also
  contains fixes for a WiFi driver, which device is attached to the SDIO
  interface. Patches for the WiFi driver have been acked by the
  corresponding maintainers.

  Summary:

  MMC core:
   - Make switch to eMMC HS400 more robust for some controllers
   - Add two SDIO func API to manage re-tuning constraints
   - Prevent processing SDIO IRQs when the card is suspended

  MMC host:
   - sdhi: Disallow broken HS400 for M3-W ES1.2, RZ/G2M and V3H
   - mtk-sd: Fixup support for SDIO IRQs
   - sdhci-pci-o2micro: Fixup support for tuning

  Wireless BRCMFMAC (SDIO):
   - Deal with expected transmission errors related to the idle states
     (handled by the Always-On-Subsystem or AOS) on the SDIO-based WiFi
     on rk3288-veyron-minnie, rk3288-veyron-speedy and
     rk3288-veyron-mickey"

* tag 'mmc-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: core: Prevent processing SDIO IRQs when the card is suspended
  mmc: sdhci: sdhci-pci-o2micro: Correctly set bus width when tuning
  brcmfmac: sdio: Don't tune while the card is off
  mmc: core: Add sdio_retune_hold_now() and sdio_retune_release()
  brcmfmac: sdio: Disable auto-tuning around commands expected to fail
  mmc: core: API to temporarily disable retuning for SDIO CRC errors
  Revert "brcmfmac: disable command decode in sdio_aos"
  mmc: mediatek: fix SDIO IRQ detection issue
  mmc: mediatek: fix SDIO IRQ interrupt handle flow
  mmc: core: complete HS400 before checking status
  mmc: sdhi: disallow HS400 for M3-W ES1.2, RZ/G2M, and V3H
2019-06-20 10:08:38 -07:00
Linus Torvalds
41a247d896 for-linus-20190620
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Merge tag 'for-linus-20190620' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Three fixes that should go into this series.

  One is a set of two patches from Christoph, fixing a page leak on same
  page merges. Boiled down version of a bigger fix, but this one is more
  appropriate for this late in the cycle (and easier to backport to
  stable).

  The last patch is for a divide error in MD, from Mariusz (via Song)"

* tag 'for-linus-20190620' of git://git.kernel.dk/linux-block:
  md: fix for divide error in status_resync
  block: fix page leak when merging to same page
  block: return from __bio_try_merge_page if merging occured in the same page
2019-06-20 09:58:35 -07:00
Paolo Bonzini
b21e31b253 KVM/arm fixes for 5.2, take #2
- SVE cleanup killing a warning with ancient GCC versions
 - Don't report non-existent system registers to userspace
 - Fix memory leak when freeing the vgic ITS
 - Properly lower the interrupt on the emulated physical timer
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Merge tag 'kvmarm-fixes-for-5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm fixes for 5.2, take #2

- SVE cleanup killing a warning with ancient GCC versions
- Don't report non-existent system registers to userspace
- Fix memory leak when freeing the vgic ITS
- Properly lower the interrupt on the emulated physical timer
2019-06-20 18:24:18 +02:00
Paolo Bonzini
9fd5887726 KVM: nVMX: reorganize initial steps of vmx_set_nested_state
Commit 332d079735 ("KVM: nVMX: KVM_SET_NESTED_STATE - Tear down old EVMCS
state before setting new state", 2019-05-02) broke evmcs_test because the
eVMCS setup must be performed even if there is no VMXON region defined,
as long as the eVMCS bit is set in the assist page.

While the simplest possible fix would be to add a check on
kvm_state->flags & KVM_STATE_NESTED_EVMCS in the initial "if" that
covers kvm_state->hdr.vmx.vmxon_pa == -1ull, that is quite ugly.

Instead, this patch moves checks earlier in the function and
conditionalizes them on kvm_state->hdr.vmx.vmxon_pa, so that
vmx_set_nested_state always goes through vmx_leave_nested
and nested_enable_evmcs.

Fixes: 332d079735 ("KVM: nVMX: KVM_SET_NESTED_STATE - Tear down old EVMCS state before setting new state")
Cc: Aaron Lewis <aaronlewis@google.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-06-20 18:05:13 +02:00
David Howells
90fa9b6452 afs: Fix uninitialised spinlock afs_volume::cb_break_lock
Fix the cb_break_lock spinlock in afs_volume struct by initialising it when
the volume record is allocated.

Also rename the lock to cb_v_break_lock to distinguish it from the lock of
the same name in the afs_server struct.

Without this, the following trace may be observed when a volume-break
callback is received:

  INFO: trying to register non-static key.
  the code is fine but needs lockdep annotation.
  turning off the locking correctness validator.
  CPU: 2 PID: 50 Comm: kworker/2:1 Not tainted 5.2.0-rc1-fscache+ #3045
  Hardware name: ASUS All Series/H97-PLUS, BIOS 2306 10/09/2014
  Workqueue: afs SRXAFSCB_CallBack
  Call Trace:
   dump_stack+0x67/0x8e
   register_lock_class+0x23b/0x421
   ? check_usage_forwards+0x13c/0x13c
   __lock_acquire+0x89/0xf73
   lock_acquire+0x13b/0x166
   ? afs_break_callbacks+0x1b2/0x3dd
   _raw_write_lock+0x2c/0x36
   ? afs_break_callbacks+0x1b2/0x3dd
   afs_break_callbacks+0x1b2/0x3dd
   ? trace_event_raw_event_afs_server+0x61/0xac
   SRXAFSCB_CallBack+0x11f/0x16c
   process_one_work+0x2c5/0x4ee
   ? worker_thread+0x234/0x2ac
   worker_thread+0x1d8/0x2ac
   ? cancel_delayed_work_sync+0xf/0xf
   kthread+0x11f/0x127
   ? kthread_park+0x76/0x76
   ret_from_fork+0x24/0x30

Fixes: 68251f0a68 ("afs: Fix whole-volume callback handling")
Signed-off-by: David Howells <dhowells@redhat.com>
2019-06-20 16:49:35 +01:00
David Howells
a6853b9ce8 afs: Fix vlserver record corruption
Because I made the afs_call struct share pointers to an afs_server object
and an afs_vlserver object to save space, afs_put_call() calls
afs_put_server() on afs_vlserver object (which is only meant for the
afs_server object) because it sees that call->server isn't NULL.

This means that the afs_vlserver object gets unpredictably and randomly
modified, depending on what config options are set (such as lockdep).

Fix this by getting rid of the union and having two non-overlapping
pointers in the afs_call struct.

Fixes: ffba718e93 ("afs: Get rid of afs_call::reply[]")
Signed-off-by: David Howells <dhowells@redhat.com>
2019-06-20 16:49:35 +01:00
David Howells
3647e42b55 afs: Fix over zealous "vnode modified" warnings
Occasionally, warnings like this:

	vnode modified 2af7 on {10000b:1} [exp 2af2] YFS.FetchStatus(vnode)

are emitted into the kernel log.  This indicates that when we were applying
the updated vnode (file) status retrieved from the server to an inode we
saw that the data version number wasn't what we were expecting (in this
case it's 0x2af7 rather than 0x2af2).

We've usually received a callback from the server prior to this point - or
the callback promise has lapsed - so the warning is merely informative and
the state is to be expected.

Fix this by only emitting the warning if the we still think that we have a
valid callback promise and haven't received a callback.

Also change the format slightly so so that the new data version doesn't
look like part of the text, the like is prefixed with "kAFS: " and the
message is ranked as a warning.

Fixes: 31143d5d51 ("AFS: implement basic file write support")
Reported-by: Ian Wienand <iwienand@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
2019-06-20 16:49:34 +01:00
Reinette Chatre
32f010deab x86/resctrl: Prevent possible overrun during bitmap operations
While the DOC at the beginning of lib/bitmap.c explicitly states that
"The number of valid bits in a given bitmap does _not_ need to be an
exact multiple of BITS_PER_LONG.", some of the bitmap operations do
indeed access BITS_PER_LONG portions of the provided bitmap no matter
the size of the provided bitmap.

For example, if find_first_bit() is provided with an 8 bit bitmap the
operation will access BITS_PER_LONG bits from the provided bitmap. While
the operation ensures that these extra bits do not affect the result,
the memory is still accessed.

The capacity bitmasks (CBMs) are typically stored in u32 since they
can never exceed 32 bits. A few instances exist where a bitmap_*
operation is performed on a CBM by simply pointing the bitmap operation
to the stored u32 value.

The consequence of this pattern is that some bitmap_* operations will
access out-of-bounds memory when interacting with the provided CBM.

This same issue has previously been addressed with commit 49e00eee00
("x86/intel_rdt: Fix out-of-bounds memory access in CBM tests")
but at that time not all instances of the issue were fixed.

Fix this by using an unsigned long to store the capacity bitmask data
that is passed to bitmap functions.

Fixes: e651901187 ("x86/intel_rdt: Introduce "bit_usage" to display cache allocations details")
Fixes: f4e80d67a5 ("x86/intel_rdt: Resctrl files reflect pseudo-locked information")
Fixes: 95f0b77efa ("x86/intel_rdt: Initialize new resource group with sane defaults")
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: stable <stable@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/58c9b6081fd9bf599af0dfc01a6fdd335768efef.1560975645.git.reinette.chatre@intel.com
2019-06-20 15:39:19 +02:00
Souptick Joarder
f4bb1f895a auxdisplay/ht16k33.c: Convert to use vm_map_pages_zero()
While using mmap, the incorrect values of length and vm_pgoff are
ignored and this driver goes ahead with mapping fbdev.buffer
to user vma.

Convert vm_insert_pages() to use vm_map_pages_zero(). We could later
"fix" these drivers to behave according to the normal vm_pgoff
offsetting simply by removing the _zero suffix on the function name
and if that causes regressions, it gives us an easy way to revert.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Acked-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
2019-06-20 15:06:24 +02:00
Souptick Joarder
461e274b28 auxdisplay/cfag12864bfb.c: Convert to use vm_map_pages_zero()
While using mmap, the incorrect values of length and vm_pgoff are
ignored and this driver goes ahead with mapping cfag12864b_buffer
to user vma.

Convert vm_insert_pages() to use vm_map_pages_zero(). We could later
"fix" these drivers to behave according to the normal vm_pgoff
offsetting simply by removing the _zero suffix on the function name and
if that causes regressions, it gives us an easy way to revert.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
2019-06-20 15:06:17 +02:00
Suraj Jitindar Singh
5008711259 KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries
When a guest vcpu moves from one physical thread to another it is
necessary for the host to perform a tlb flush on the previous core if
another vcpu from the same guest is going to run there. This is because the
guest may use the local form of the tlb invalidation instruction meaning
stale tlb entries would persist where it previously ran. This is handled
on guest entry in kvmppc_check_need_tlb_flush() which calls
flush_guest_tlb() to perform the tlb flush.

Previously the generic radix__local_flush_tlb_lpid_guest() function was
used, however the functionality was reimplemented in flush_guest_tlb()
to avoid the trace_tlbie() call as the flushing may be done in real
mode. The reimplementation in flush_guest_tlb() was missing an erat
invalidation after flushing the tlb.

This lead to observable memory corruption in the guest due to the
caching of stale translations. Fix this by adding the erat invalidation.

Fixes: 70ea13f6e6 ("KVM: PPC: Book3S HV: Flush TLB on secondary radix threads")
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-06-20 22:11:25 +10:00
Greg Kroah-Hartman
6f828c55e2 Merge tag 'misc-habanalabs-fixes-2019-06-20' of git://people.freedesktop.org/~gabbayo/linux into char-misc-linus
Oded writes:

This tag contains the following fix:

- Casting warning of a 64-bit integer in 32-bit architecture. Use the
  macro that was defined for this purpose.

* tag 'misc-habanalabs-fixes-2019-06-20' of git://people.freedesktop.org/~gabbayo/linux:
  habanalabs: use u64_to_user_ptr() for reading user pointers
2019-06-20 13:30:47 +02:00
Greg Kroah-Hartman
d28bdaff5e usb: fixes for v5.2-rc5
A single fix to take into account the PHY width during initialization of
 dwc2 driver. This change allows deviceTree to pass PHY width if
 necessary.
 
 Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Merge tag 'fixes-for-v5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v5.2-rc5

A single fix to take into account the PHY width during initialization of
dwc2 driver. This change allows deviceTree to pass PHY width if
necessary.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

* tag 'fixes-for-v5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
  usb: dwc2: Use generic PHY width in params setup
2019-06-20 11:56:35 +02:00
Arnd Bergmann
f99bc332c7 habanalabs: use u64_to_user_ptr() for reading user pointers
We cannot cast a 64-bit integer to a pointer on 32-bit architectures
without a warning:

drivers/misc/habanalabs/habanalabs_ioctl.c: In function 'debug_coresight':
drivers/misc/habanalabs/habanalabs_ioctl.c:143:23: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
   input = memdup_user((const void __user *) args->input_ptr,

Use the macro that was defined for this purpose.

Fixes: 315bc055ed ("habanalabs: add new IOCTL for debug, tracing and profiling")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2019-06-20 12:13:19 +03:00
J. Bruce Fields
241e390045 nfsd: replace Jeff by Chuck as nfsd co-maintainer
Jeff's picking up more responsibilities elsewhere, and Chuck's agreed to
take over.

For now, as before, nothing's changing day-to-day, but I want to have a
co-maintainer if only for bus factor.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-06-19 17:30:09 -07:00
Eric Dumazet
85f9aa7565 inet: clear num_timeout reqsk_alloc()
KMSAN caught uninit-value in tcp_create_openreq_child() [1]
This is caused by a recent change, combined by the fact
that TCP cleared num_timeout, num_retrans and sk fields only
when a request socket was about to be queued.

Under syncookie mode, a temporary request socket is used,
and req->num_timeout could contain garbage.

Lets clear these three fields sooner, there is really no
point trying to defer this and risk other bugs.

[1]

BUG: KMSAN: uninit-value in tcp_create_openreq_child+0x157f/0x1cc0 net/ipv4/tcp_minisocks.c:526
CPU: 1 PID: 13357 Comm: syz-executor591 Not tainted 5.2.0-rc4+ #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x191/0x1f0 lib/dump_stack.c:113
 kmsan_report+0x162/0x2d0 mm/kmsan/kmsan.c:611
 __msan_warning+0x75/0xe0 mm/kmsan/kmsan_instr.c:304
 tcp_create_openreq_child+0x157f/0x1cc0 net/ipv4/tcp_minisocks.c:526
 tcp_v6_syn_recv_sock+0x761/0x2d80 net/ipv6/tcp_ipv6.c:1152
 tcp_get_cookie_sock+0x16e/0x6b0 net/ipv4/syncookies.c:209
 cookie_v6_check+0x27e0/0x29a0 net/ipv6/syncookies.c:252
 tcp_v6_cookie_check net/ipv6/tcp_ipv6.c:1039 [inline]
 tcp_v6_do_rcv+0xf1c/0x1ce0 net/ipv6/tcp_ipv6.c:1344
 tcp_v6_rcv+0x60b7/0x6a30 net/ipv6/tcp_ipv6.c:1554
 ip6_protocol_deliver_rcu+0x1433/0x22f0 net/ipv6/ip6_input.c:397
 ip6_input_finish net/ipv6/ip6_input.c:438 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ip6_input+0x2af/0x340 net/ipv6/ip6_input.c:447
 dst_input include/net/dst.h:439 [inline]
 ip6_rcv_finish net/ipv6/ip6_input.c:76 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ipv6_rcv+0x683/0x710 net/ipv6/ip6_input.c:272
 __netif_receive_skb_one_core net/core/dev.c:4981 [inline]
 __netif_receive_skb net/core/dev.c:5095 [inline]
 process_backlog+0x721/0x1410 net/core/dev.c:5906
 napi_poll net/core/dev.c:6329 [inline]
 net_rx_action+0x738/0x1940 net/core/dev.c:6395
 __do_softirq+0x4ad/0x858 kernel/softirq.c:293
 do_softirq_own_stack+0x49/0x80 arch/x86/entry/entry_64.S:1052
 </IRQ>
 do_softirq kernel/softirq.c:338 [inline]
 __local_bh_enable_ip+0x199/0x1e0 kernel/softirq.c:190
 local_bh_enable+0x36/0x40 include/linux/bottom_half.h:32
 rcu_read_unlock_bh include/linux/rcupdate.h:682 [inline]
 ip6_finish_output2+0x213f/0x2670 net/ipv6/ip6_output.c:117
 ip6_finish_output+0xae4/0xbc0 net/ipv6/ip6_output.c:150
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x5d3/0x720 net/ipv6/ip6_output.c:167
 dst_output include/net/dst.h:433 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ip6_xmit+0x1f53/0x2650 net/ipv6/ip6_output.c:271
 inet6_csk_xmit+0x3df/0x4f0 net/ipv6/inet6_connection_sock.c:135
 __tcp_transmit_skb+0x4076/0x5b40 net/ipv4/tcp_output.c:1156
 tcp_transmit_skb net/ipv4/tcp_output.c:1172 [inline]
 tcp_write_xmit+0x39a9/0xa730 net/ipv4/tcp_output.c:2397
 __tcp_push_pending_frames+0x124/0x4e0 net/ipv4/tcp_output.c:2573
 tcp_send_fin+0xd43/0x1540 net/ipv4/tcp_output.c:3118
 tcp_close+0x16ba/0x1860 net/ipv4/tcp.c:2403
 inet_release+0x1f7/0x270 net/ipv4/af_inet.c:427
 inet6_release+0xaf/0x100 net/ipv6/af_inet6.c:470
 __sock_release net/socket.c:601 [inline]
 sock_close+0x156/0x490 net/socket.c:1273
 __fput+0x4c9/0xba0 fs/file_table.c:280
 ____fput+0x37/0x40 fs/file_table.c:313
 task_work_run+0x22e/0x2a0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:185 [inline]
 exit_to_usermode_loop arch/x86/entry/common.c:168 [inline]
 prepare_exit_to_usermode+0x39d/0x4d0 arch/x86/entry/common.c:199
 syscall_return_slowpath+0x90/0x5c0 arch/x86/entry/common.c:279
 do_syscall_64+0xe2/0xf0 arch/x86/entry/common.c:305
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x401d50
Code: 01 f0 ff ff 0f 83 40 0d 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d dd 8d 2d 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 14 0d 00 00 c3 48 83 ec 08 e8 7a 02 00 00
RSP: 002b:00007fff1cf58cf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000401d50
RDX: 000000000000001c RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00000000004a9050 R08: 0000000020000040 R09: 000000000000001c
R10: 0000000020004004 R11: 0000000000000246 R12: 0000000000402ef0
R13: 0000000000402f80 R14: 0000000000000000 R15: 0000000000000000

Uninit was created at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:201 [inline]
 kmsan_internal_poison_shadow+0x53/0xa0 mm/kmsan/kmsan.c:160
 kmsan_kmalloc+0xa4/0x130 mm/kmsan/kmsan_hooks.c:177
 kmem_cache_alloc+0x534/0xb00 mm/slub.c:2781
 reqsk_alloc include/net/request_sock.h:84 [inline]
 inet_reqsk_alloc+0xa8/0x600 net/ipv4/tcp_input.c:6384
 cookie_v6_check+0xadb/0x29a0 net/ipv6/syncookies.c:173
 tcp_v6_cookie_check net/ipv6/tcp_ipv6.c:1039 [inline]
 tcp_v6_do_rcv+0xf1c/0x1ce0 net/ipv6/tcp_ipv6.c:1344
 tcp_v6_rcv+0x60b7/0x6a30 net/ipv6/tcp_ipv6.c:1554
 ip6_protocol_deliver_rcu+0x1433/0x22f0 net/ipv6/ip6_input.c:397
 ip6_input_finish net/ipv6/ip6_input.c:438 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ip6_input+0x2af/0x340 net/ipv6/ip6_input.c:447
 dst_input include/net/dst.h:439 [inline]
 ip6_rcv_finish net/ipv6/ip6_input.c:76 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ipv6_rcv+0x683/0x710 net/ipv6/ip6_input.c:272
 __netif_receive_skb_one_core net/core/dev.c:4981 [inline]
 __netif_receive_skb net/core/dev.c:5095 [inline]
 process_backlog+0x721/0x1410 net/core/dev.c:5906
 napi_poll net/core/dev.c:6329 [inline]
 net_rx_action+0x738/0x1940 net/core/dev.c:6395
 __do_softirq+0x4ad/0x858 kernel/softirq.c:293
 do_softirq_own_stack+0x49/0x80 arch/x86/entry/entry_64.S:1052
 do_softirq kernel/softirq.c:338 [inline]
 __local_bh_enable_ip+0x199/0x1e0 kernel/softirq.c:190
 local_bh_enable+0x36/0x40 include/linux/bottom_half.h:32
 rcu_read_unlock_bh include/linux/rcupdate.h:682 [inline]
 ip6_finish_output2+0x213f/0x2670 net/ipv6/ip6_output.c:117
 ip6_finish_output+0xae4/0xbc0 net/ipv6/ip6_output.c:150
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x5d3/0x720 net/ipv6/ip6_output.c:167
 dst_output include/net/dst.h:433 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ip6_xmit+0x1f53/0x2650 net/ipv6/ip6_output.c:271
 inet6_csk_xmit+0x3df/0x4f0 net/ipv6/inet6_connection_sock.c:135
 __tcp_transmit_skb+0x4076/0x5b40 net/ipv4/tcp_output.c:1156
 tcp_transmit_skb net/ipv4/tcp_output.c:1172 [inline]
 tcp_write_xmit+0x39a9/0xa730 net/ipv4/tcp_output.c:2397
 __tcp_push_pending_frames+0x124/0x4e0 net/ipv4/tcp_output.c:2573
 tcp_send_fin+0xd43/0x1540 net/ipv4/tcp_output.c:3118
 tcp_close+0x16ba/0x1860 net/ipv4/tcp.c:2403
 inet_release+0x1f7/0x270 net/ipv4/af_inet.c:427
 inet6_release+0xaf/0x100 net/ipv6/af_inet6.c:470
 __sock_release net/socket.c:601 [inline]
 sock_close+0x156/0x490 net/socket.c:1273
 __fput+0x4c9/0xba0 fs/file_table.c:280
 ____fput+0x37/0x40 fs/file_table.c:313
 task_work_run+0x22e/0x2a0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:185 [inline]
 exit_to_usermode_loop arch/x86/entry/common.c:168 [inline]
 prepare_exit_to_usermode+0x39d/0x4d0 arch/x86/entry/common.c:199
 syscall_return_slowpath+0x90/0x5c0 arch/x86/entry/common.c:279
 do_syscall_64+0xe2/0xf0 arch/x86/entry/common.c:305
 entry_SYSCALL_64_after_hwframe+0x63/0xe7

Fixes: 336c39a031 ("tcp: undo init congestion window on false SYNACK timeout")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-19 17:46:57 -04:00
Logan Gunthorpe
6dbbd053e6 PCI/P2PDMA: Ignore root complex whitelist when an IOMMU is present
Presently, there is no path to DMA map P2PDMA memory, so if a TLP targeting
this memory hits the root complex and an IOMMU is present, the IOMMU will
reject the transaction, even if the RC would support P2PDMA.

So until the kernel knows to map these DMA addresses in the IOMMU, we
should not enable the whitelist when an IOMMU is present.

Link: https://lore.kernel.org/linux-pci/20190522201252.2997-1-logang@deltatee.com/
Fixes: 0f97da8310 ("PCI/P2PDMA: Allow P2P DMA between any devices under AMD ZEN Root Complex")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Christoph Hellwig <hch@lst.de>
2019-06-19 16:43:42 -05:00
Nathan Huckleberry
8110a7a7d2 net: mvpp2: debugfs: Add pmap to fs dump
There was an unused variable 'mvpp2_dbgfs_prs_pmap_fops'
Added a usage consistent with other fops to dump pmap
to userspace.

Cc: clang-built-linux@googlegroups.com
Link: https://github.com/ClangBuiltLinux/linux/issues/529
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-19 17:19:46 -04:00
David Ahern
c7036d97ac ipv6: Default fib6_type to RTN_UNICAST when not set
A user reported that routes are getting installed with type 0 (RTN_UNSPEC)
where before the routes were RTN_UNICAST. One example is from accel-ppp
which apparently still uses the ioctl interface and does not set
rtmsg_type. Another is the netlink interface where ipv6 does not require
rtm_type to be set (v4 does). Prior to the commit in the Fixes tag the
ipv6 stack converted type 0 to RTN_UNICAST, so restore that behavior.

Fixes: e8478e80e5 ("net/ipv6: Save route type in rt6_info")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-19 17:14:05 -04:00
Krzysztof Kozlowski
bf6de23153 net: hns3: Fix inconsistent indenting
Fix wrong indentation of goto return.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-19 16:30:55 -04:00
David S. Miller
99838e602b Merge branch 'af_iucv-fixes'
Julian Wiedmann says:

====================
net/af_iucv: fixes 2019-06-18

I spent a few cycles on transmit problems for af_iucv over regular
netdevices - please apply the following fixes to -net.

The first patch allows for skb allocations outside of GFP_DMA, while the
second patch respects that drivers might use skb_cow_head() and/or want
additional dev->needed_headroom.
Patch 3 is for a separate issue, where we didn't setup some of the
netdevice-specific infrastructure when running as a z/VM guest.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-19 16:26:33 -04:00
Julian Wiedmann
06996c1d40 net/af_iucv: always register net_device notifier
Even when running as VM guest (ie pr_iucv != NULL), af_iucv can still
open HiperTransport-based connections. For robust operation these
connections require the af_iucv_netdev_notifier, so register it
unconditionally.

Also handle any error that register_netdevice_notifier() returns.

Fixes: 9fbd87d413 ("af_iucv: handle netdev events")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-19 16:26:33 -04:00
Julian Wiedmann
238965b71b net/af_iucv: build proper skbs for HiperTransport
The HiperSockets-based transport path in af_iucv is still too closely
entangled with qeth.
With commit a647a02512 ("s390/qeth: speed-up L3 IQD xmit"), the
relevant xmit code in qeth has begun to use skb_cow_head(). So to avoid
unnecessary skb head expansions, af_iucv must learn to
1) respect dev->needed_headroom when allocating skbs, and
2) drop the header reference before cloning the skb.

While at it, also stop hard-coding the LL-header creation stage and just
use the appropriate helper.

Fixes: a647a02512 ("s390/qeth: speed-up L3 IQD xmit")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-19 16:26:33 -04:00
Julian Wiedmann
fdbf632691 net/af_iucv: remove GFP_DMA restriction for HiperTransport
af_iucv sockets over z/VM IUCV require that their skbs are allocated
in DMA memory. This restriction doesn't apply to connections over
HiperSockets. So only set this limit for z/VM IUCV sockets, thereby
increasing the likelihood that the large (and linear!) allocations for
HiperTransport messages succeed.

Fixes: 3881ac441f ("af_iucv: add HiperSockets transport")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-19 16:26:33 -04:00
Linus Torvalds
abf02e2964 Power management fix for 5.2-rc6
Prevent PCI bridges in general (and PCIe ports in particular)
 from being put into low-power states during system-wide suspend
 transitions if there are any devices in D0 below them and refine
 the handling of PCI devices in D0 during suspend-to-idle cycles.
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Merge tag 'pm-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Prevent PCI bridges in general (and PCIe ports in particular) from
  being put into low-power states during system-wide suspend transitions
  if there are any devices in D0 below them and refine the handling of
  PCI devices in D0 during suspend-to-idle cycles"

* tag 'pm-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PCI: PM: Skip devices in D0 for suspend-to-idle
2019-06-19 11:44:04 -07:00
Linus Torvalds
c3c0d546d7 + Bug Fixes
- Fix PROFILE_MEDIATES for untrusted input
   - enforce nullbyte at end of tag string
   - reset pos on failure to unpack for various functions
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Merge tag 'apparmor-pr-2019-06-18' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor

Pull apparmor bug fixes from John Johansen:

 - fix PROFILE_MEDIATES for untrusted input

 - enforce nullbyte at end of tag string

 - reset pos on failure to unpack for various functions

* tag 'apparmor-pr-2019-06-18' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
  apparmor: reset pos on failure to unpack for various functions
  apparmor: enforce nullbyte at end of tag string
  apparmor: fix PROFILE_MEDIATES for untrusted input
2019-06-19 11:39:00 -07:00
Linus Torvalds
4b6920ba26 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "Just a few small fixups and switching a couple of Thinkpads to SMBus
  for touchpads as PS/2 emulation is not working well"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: synaptics - enable SMBus on ThinkPad E480 and E580
  Input: imx_keypad - make sure keyboard can always wake up system
  Input: iqs5xx - get axis info before calling input_mt_init_slots()
  Input: uinput - add compat ioctl number translation for UI_*_FF_UPLOAD
  Input: silead - add MSSL0017 to acpi_device_id
  Input: elantech - enable middle button support on 2 ThinkPads
  Input: elan_i2c - increment wakeup count if wake source
2019-06-19 11:26:09 -07:00
Yang Yingliang
6ad805b82d doc: fix documentation about UIO_MEM_LOGICAL using
After commit d4fc5069a3 ("mm: switch s_mem and slab_cache in struct page")
page->mapping will be re-used by slab allocations and page->mapping->host
will be used in balance_dirty_pages_ratelimited() as an inode member but
it's not an inode in fact and leads an oops.

[  159.906493] Unable to handle kernel paging request at virtual address ffff200012d90be8
[  159.908029] Mem abort info:
[  159.908552]   ESR = 0x96000007
[  159.909138]   Exception class = DABT (current EL), IL = 32 bits
[  159.910155]   SET = 0, FnV = 0
[  159.910690]   EA = 0, S1PTW = 0
[  159.911241] Data abort info:
[  159.911846]   ISV = 0, ISS = 0x00000007
[  159.912567]   CM = 0, WnR = 0
[  159.913105] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000042acd000
[  159.914269] [ffff200012d90be8] pgd=000000043ffff003, pud=000000043fffe003, pmd=000000043fffa003, pte=0000000000000000
[  159.916280] Internal error: Oops: 96000007 [#1] SMP
[  159.917195] Dumping ftrace buffer:
[  159.917845]    (ftrace buffer empty)
[  159.918521] Modules linked in: uio_dev(OE)
[  159.919276] CPU: 1 PID: 295 Comm: uio_test Tainted: G           OE     5.2.0-rc4+ #46
[  159.920859] Hardware name: linux,dummy-virt (DT)
[  159.921815] pstate: 60000005 (nZCv daif -PAN -UAO)
[  159.922809] pc : balance_dirty_pages_ratelimited+0x68/0xc38
[  159.923965] lr : fault_dirty_shared_page.isra.8+0xe4/0x100
[  159.925134] sp : ffff800368a77ae0
[  159.925824] x29: ffff800368a77ae0 x28: 1ffff0006d14ce1a
[  159.926906] x27: ffff800368a670d0 x26: ffff800368a67120
[  159.927985] x25: 1ffff0006d10f5fe x24: ffff200012d90be8
[  159.929089] x23: ffff200013732000 x22: ffff80036ec03200
[  159.930172] x21: ffff200012d90bc0 x20: 1fffe400025b217d
[  159.931253] x19: ffff80036ec03200 x18: 0000000000000000
[  159.932348] x17: 0000000000000000 x16: 0ffffe0000010208
[  159.933439] x15: 0000000000000000 x14: 0000000000000000
[  159.934518] x13: 0000000000000000 x12: 0000000000000000
[  159.935596] x11: 1fffefc001b452c0 x10: ffff0fc001b452c0
[  159.936697] x9 : dfff200000000000 x8 : dfff200000000001
[  159.937781] x7 : ffff7e000da29607 x6 : ffff0fc001b452c1
[  159.938859] x5 : ffff0fc001b452c1 x4 : ffff0fc001b452c1
[  159.939944] x3 : ffff200010523ad4 x2 : 1fffe400026e659b
[  159.941065] x1 : dfff200000000000 x0 : ffff200013732cd8
[  159.942205] Call trace:
[  159.942732]  balance_dirty_pages_ratelimited+0x68/0xc38
[  159.943797]  fault_dirty_shared_page.isra.8+0xe4/0x100
[  159.944867]  do_fault+0x608/0x1250
[  159.945571]  __handle_mm_fault+0x93c/0xfb8
[  159.946412]  handle_mm_fault+0x1c0/0x360
[  159.947224]  do_page_fault+0x358/0x8d0
[  159.947993]  do_translation_fault+0xf8/0x124
[  159.948884]  do_mem_abort+0x70/0x190
[  159.949624]  el0_da+0x24/0x28

According another commit 5e901d0b15 ("scsi: qedi: Fix bad pte call trace
when iscsiuio is stopped."), using kmalloc also cause other problem.

But the documentation about UIO_MEM_LOGICAL allows using kmalloc(), remove
and don't allow using kmalloc() in documentation.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 19:31:21 +02:00
Gavin Schenk
75d7627f49 MAINTAINERS / Documentation: Thorsten Scherer is the successor of Gavin Schenk
Due to new challenges in my life I can no longer take care of SIOX.
Thorsten takes over my SIOX tasks.

Signed-off-by: Gavin Schenk <g.schenk@eckelmann.de>
Acked-by: Thorsten Scherer <t.scherer@eckelmann.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 19:31:21 +02:00
Takashi Iwai
fce677d7e8 docs: fb: Add TER16x32 to the available font names
The new font is available since recently.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 19:21:48 +02:00
Greg Kroah-Hartman
c61802ee54 thunderbolt: Fixes for v5.2-rc6
This includes two fixes for issues found during the current release
 cycle:
 
   - Fix runtime PM regression when device is authorized after the
     controller is runtime suspended.
 
   - Correct CIO reset flow for Titan Ridge.
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Merge tag 'thunderbolt-fixes-for-v5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into char-misc-linus

Mika writes:

thunderbolt: Fixes for v5.2-rc6

This includes two fixes for issues found during the current release
cycle:

  - Fix runtime PM regression when device is authorized after the
    controller is runtime suspended.

  - Correct CIO reset flow for Titan Ridge.

* tag 'thunderbolt-fixes-for-v5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt:
  thunderbolt: Implement CIO reset correctly for Titan Ridge
  thunderbolt: Make sure device runtime resume completes before taking domain lock
2019-06-19 19:02:52 +02:00
Olof Johansson
2f7da158cc This pull request contains MAINTAINERS file updates for Broadcom SoCs
entries for 5.3, please pull the following:
 
 - Florian adds the Broadcom internal mailing-list which has a patchwork
   instance behind for the BCM2835 and BCM53573 SoCs entries
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Merge tag 'arm-soc/for-5.3/maintainers' of https://github.com/Broadcom/stblinux into arm/fixes

This pull request contains MAINTAINERS file updates for Broadcom SoCs
entries for 5.3, please pull the following:

- Florian adds the Broadcom internal mailing-list which has a patchwork
  instance behind for the BCM2835 and BCM53573 SoCs entries

* tag 'arm-soc/for-5.3/maintainers' of https://github.com/Broadcom/stblinux:
  MAINTAINERS: BCM53573: Add internal Broadcom mailing list
  MAINTAINERS: BCM2835: Add internal Broadcom mailing list

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 09:11:04 -07:00
Alan Tull
7c464359be MAINTAINERS: fpga: hand off maintainership to Moritz
I'm moving on to a new position and stepping down as FPGA subsystem
maintainer.  Moritz has graciously agreed to take over the
maintainership.

Signed-off-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:38:42 +02:00
Thomas Gleixner
c891f3b979 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 507
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of version 2 of the gnu general public license as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not write to the free
  software foundation inc 59 temple place suite 330 boston ma 02111
  1307 usa the full gnu general public license is included in this
  distribution in the file called license

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 8 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081207.801261482@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:11:23 +02:00
Thomas Gleixner
4cb2acc0df treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 506
Based on 1 normalized pattern(s):

  this software program is licensed subject to the gnu general public
  license gpl version 2 june 1991 available at http www fsf org
  copyleft gpl html

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Daniel German <dmg@turingmachine.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081207.687420463@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:11:22 +02:00
Thomas Gleixner
7f904d7e1f treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
Based on 1 normalized pattern(s):

  gplv2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 58 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081207.556988620@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:11:22 +02:00