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Next batch of atomic work. Most important is the propertification from Rob
and the nth iteration of the actual atomic ioctl originally from Ville.
Big differences compared to earlier revisions:
- Core properties are now fully handled by the core, drivers can only
handle driver-specific properties.
- Atomic props&ioctl are opt-in per file_priv, userspace needs to
explicitly ask for it (like universal plane support).
- For now all hidden behind the atomic module option until this has
settled a bit.
- Atomic modesets are currently not possible since the exact abi for how
to handle the mode property is still under discussion.
Besides this some cleanup patches from me and the addition of per-object
state to global state backpointers to simplify drivers.
* tag 'topic/atomic-core-2015-01-05' of git://anongit.freedesktop.org/drm-intel:
drm: Ensure universal_planes is set for atomic
drm/atomic: Hide drm.ko internal interfaces
drm: Atomic modeset ioctl
drm/atomic: atomic connector properties
drm/atomic: atomic plane properties
drm: small property creation cleanup
drm/atomic: atomic_check functions
drm: add atomic properties
drm: refactor getproperties/getconnector
drm: tweak getconnector locking
drm: add atomic_get_property
drm: add atomic_set_property wrappers
drm: get rid of direct property value access
drm: store property instead of id in obj attachment
drm: allow property validation for refcnted props
drm/atomic: Introduce state->obj backpointers
drm/atomic-helper: Again check modeset *before* plane states
drm/atomic-helper: Export both plane and modeset check helpers
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Misc drm patches with mostly polish patches from Thierry, with a bit of
generic mode validation from Ville and a few other oddball things.
* tag 'topic/core-stuff-2014-12-19' of git://anongit.freedesktop.org/drm-intel: (25 commits)
drm: Include drm_crtc_helper.h in DocBook
drm: Make drm_crtc_helper.h standalone includible
drm: Move IRQ related fields to proper section
drm: Remove stale comment
drm: Do basic sanity checks for user modes
drm: Perform basic sanity checks on probed modes
drm: Reorganize probed mode validation
drm/doc: Remove duplicate "by"
drm/info: Remove unused code
drm/cache: Use wbinvd helpers
drm/plane-helper: Test for plane disable earlier
drm/doc: Document drm_add_modes_noedid() usage
drm: bit of spell-check / editorializing.
drm: Prefer sizeof(type) over sizeof type
drm: Remove useless else block
drm: Remove unneeded braces for single statement blocks
drm: Do not assign in if condition
drm: Prefer kmalloc_array() over kmalloc() with multiply
drm: Prefer kcalloc() over kzalloc() with multiply
drm: Miscellaneous checkpatch whitespace cleanups
...
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Pull powerpc fixes from Michael Ellerman:
- Wire up sys_execveat(). Tested on 32 & 64 bit.
- Fix for kdump on LE systems with cpus hot unplugged.
- Revert Anton's fix for "kernel BUG at kernel/smpboot.c:134!", this
broke other platforms, we'll do a proper fix for 3.20.
* tag 'powerpc-3.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux:
Revert "powerpc: Secondary CPUs must set cpu_callin_map after setting active and online"
powerpc/kdump: Ignore failure in enabling big endian exception during crash
powerpc: Wire up sys_execveat() syscall
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Pull ia64 fixlet from Tony Luck:
"Add execveat syscall"
* tag 'please-pull-syscall' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
[IA64] Enable execveat syscall for ia64
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See commit 51f39a1f0cea1cacf8c787f652f26dfee9611874
syscalls: implement execveat() system call
Signed-off-by: Tony Luck <tony.luck@intel.com>
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Atomic doesn't really work without universal planes anyway. But make
sure that evil userspace doesn't pull the kernel over the table
because we didn't consider a cornercase that just doesn't make sense,
just for safety.
v2: Just force ->universal_planes to the same value to avoid imposing
restrictions on userspace.
Cc: Rob Clark <robdclark@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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This is just a bit fallout from patch polishing and moving the
get_prop logic fully into the core:
- Drop EXPORT_SYMBOL and make the helpers static.
- Drop kerneldoc since not used by drivers.
- Move the cross-file function declarations only used by drm.ko
internally to an internal header.
v2: keep the gist of the comments, requested by Rob.
Cc: Rob Clark <robdclark@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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The atomic modeset ioctl can be used to push any number of new values
for object properties. The driver can then check the full device
configuration as single unit, and try to apply the changes atomically.
The ioctl simply takes a list of object IDs and property IDs and their
values.
Originally based on a patch from Ville Syrjälä, although it has mutated
(mutilated?) enough since then that you probably shouldn't blame it on
him ;-)
The atomic support is hidden behind the DRM_CLIENT_CAP_ATOMIC cap (to
protect legacy userspace) and drm.atomic module param (for now).
v2: Check for file_priv->atomic to make sure we only allow userspace
in-the-know to use atomic.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Expose the core connector state as properties so it can be updated via
atomic ioctl.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Expose the core plane state as properties, so they can be updated via
atomic ioctl.
v2: atomic property flag
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Getting ready to add a lot more standard properties for atomic.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[danvet: Realign function paramaters where the lines shrunk
massively.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Add functions to check core plane/crtc state.
v2: comments, int-overflow checks, call from core rather than
helpers to be sure drivers can't find a way to bypass core
checks
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Once a driver is using atomic helpers for modeset, the next step is to
switch over to atomic properties. To do this, make sure that any
modeset objects have their ->atomic_{get,set}_property() vfuncs suitably
populated if they have custom properties (you did already remember to
plug in atomic-helper func for the legacy ->set_property() vfuncs,
right?), and then set DRIVER_ATOMIC bit in driver_features flag.
A new cap is introduced, DRM_CLIENT_CAP_ATOMIC, for the purposes of
shielding legacy userspace from atomic properties. Mostly for the
benefit of legacy DDX drivers that do silly things like getting/setting
each property at startup (since some of the new atomic properties will
be able to trigger modeset).
Signed-off-by: Rob Clark <robdclark@gmail.com>
[danvet: Squash in fixup patch to check for DRM_MODE_PROP_ATOMIC
instaed of the CAP define when filtering properties. Reported by
Tvrtko Uruslin, acked by Rob.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Pull UML fixes from Richard Weinberger:
"Two fixes for UML regressions. Nothing exciting"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
x86, um: actually mark system call tables readonly
um: Skip futex_atomic_cmpxchg_inatomic() test
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Commit 9fc2105aeaaf ("ARM: 7830/1: delay: don't bother reporting
bogomips in /proc/cpuinfo") breaks audio in python, and probably
elsewhere, with message
FATAL: cannot locate cpu MHz in /proc/cpuinfo
I'm not the first one to hit it, see for example
https://theredblacktree.wordpress.com/2014/08/10/fatal-cannot-locate-cpu-mhz-in-proccpuinfo/
https://devtalk.nvidia.com/default/topic/765800/workaround-for-fatal-cannot-locate-cpu-mhz-in-proc-cpuinf/?offset=1
Reading original changelog, I have to say "Stop breaking working setups.
You know who you are!".
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit a074335a370e ("x86, um: Mark system call tables readonly") was
supposed to mark the sys_call_table in UML as RO by adding the const,
but it doesn't have the desired effect as it's nevertheless being placed
into the data section since __cacheline_aligned enforces sys_call_table
being placed into .data..cacheline_aligned instead. We need to use
the ____cacheline_aligned version instead to fix this issue.
Before:
$ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table"
U sys_writev
0000000000000000 D sys_call_table
0000000000000000 D syscall_table_size
After:
$ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table"
U sys_writev
0000000000000000 R sys_call_table
0000000000000000 D syscall_table_size
Fixes: a074335a370e ("x86, um: Mark system call tables readonly")
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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futex_atomic_cmpxchg_inatomic() does not work on UML because
it triggers a copy_from_user() in kernel context.
On UML copy_from_user() can only be used if the kernel was called
by a real user space process such that UML can use ptrace()
to fetch the value.
Reported-by: Miklos Szeredi <miklos@szeredi.hu>
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
Tested-by: Daniel Walter <d.walter@0x90.at>
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Pull SCSI fixes from James Bottomley:
"This is a set of three fixes: one to correct an abort path thinko
causing failures (and a panic) in USB on device misbehaviour, One to
fix an out of order issue in the fnic driver and one to match discard
expectations to qemu which otherwise cause Linux to behave badly as a
guest"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
SCSI: fix regression in scsi_send_eh_cmnd()
fnic: IOMMU Fault occurs when IO and abort IO is out of order
sd: tweak discard heuristics to work around QEMU SCSI issue
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Pull sound fixes from Takashi Iwai:
"Nothing too exciting as a new year's start here: most of fixes are for
ASoC, a boot crash fix on OMAP for deferred probe, a few driver
specific fixes (Intel, dwc, rockchip, rt5677), in addition to typo
fixes in kerneldoc comments for PCM"
* tag 'sound-3.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: pcm: Fix kerneldoc for params_*() functions
ASoC: rockchip: i2s: fix maxburst of dma data to 4
ASoC: rockchip: i2s: fix error defination of transmit data level
ASoC: Intel: correct the fixed free block allocation
ASoC: rt5677: fixed rt5677_dsp_vad_put rt5677_dsp_vad_get panic
ASoC: Intel: Fix BYTCR machine driver MODULE_ALIAS
ASoC: Intel: Fix BYTCR firmware name
ASoC: dwc: Iterate over all channels
ASoC: dwc: Ensure FIFOs are flushed to prevent channel swap
ASoC: Intel: Add I2C dependency to two new machines
ASoC: dapm: Remove snd_soc_of_parse_audio_routing() due to deferred probe
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Pull vhost cleanup and virtio bugfix
"There's a single change here, fixing a vhost bug where vhost
initialization fails due to used ring alignment check being too
strict"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost: relax used address alignment
virtio_ring: document alignment requirements
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Pull audit fix from Paul Moore:
"One audit patch to resolve a panic/oops when recording filenames in
the audit log, see the mail archive link below.
The fix isn't as nice as I would like, as it involves an allocate/copy
of the filename, but it solves the problem and the overhead should
only affect users who have configured audit rules involving file
names.
We'll revisit this issue with future kernels in an attempt to make
this suck less, but in the meantime I think this fix should go into
the next release of v3.19-rcX.
[ https://marc.info/?t=141986927600001&r=1&w=2 ]"
* 'upstream' of git://git.infradead.org/users/pcmoore/audit:
audit: create private file name copies when auditing inodes
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This reverts commit 9d469d033d135d80742a4e39e6bbb4519dd5eee1.
It breaks the Chromebook Pixel touchpad (and touchscreen).
Reported-by: Dirk Hohndel <dirk@hohndel.org>
Bisected-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nick Dyer <nick.dyer@itdev.co.uk>
Cc: Benson Leung <bleung@chromium.org>
Cc: Yufeng Shen <miletus@chromium.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: stable@vger.kernel.org # v3.16+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull arch/nios2 fixes from Ley Foon Tan:
- fix compilation error when enable CONFIG_PREEMPT
- initialize cpuinfo.mmu variable supplied by the device tree
* tag 'nios2-fixes-v3.19-rc3' of git://git.rocketboards.org/linux-socfpga-next:
nios2: Use preempt_schedule_irq
nios2: Initialize cpuinfo.mmu
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Pull crypto fix from Herbert Xu:
"Fix a use-after-free crash in the user-space crypto API"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: af_alg - fix backlog handling
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Follow aa0d53260596 ("ia64: Use preempt_schedule_irq") and use
preempt_schedule_irq instead of enabling/disabling interrupts and
messing around with PREEMPT_ACTIVE in the nios2 low-level preemption
code ourselves. Also get rid of the now needless re-check for
TIF_NEED_RESCHED, preempt_schedule_irq will already take care of
rescheduling.
This also fixes the following build error when building with
CONFIG_PREEMPT:
arch/nios2/kernel/built-in.o: In function `need_resched':
arch/nios2/kernel/entry.S:374: undefined reference to `PREEMPT_ACTIVE'
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
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This patch initializes the mmu field of the cpuinfo structure to the
value supplied by the devicetree.
Signed-off-by: Walter Goossens <waltergoossens@home.nl>
Acked-by: Ley Foon Tan <lftan@altera.com>
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Pull ARM SoC fixes from Arnd Bergmann:
"A very small set of fixes for 3.19, as everyone was out.
The clocksource patch was something I missed for the merge window
after the change that broke arm64 was merged through arm-soc. The
other two patches are a fix for an undetected merge problem in mvebu
and a defconfig change to make some exynos boards work with the normal
multi_v7_defconfig"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
Add USB_EHCI_EXYNOS to multi_v7_defconfig
ARM: mvebu: Fix pinctrl configuration for Armada 370 DB
clocksource: arch_timer: Only use the virtual counter (CNTVCT) on arm64
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Pull fbdev fixes from Tomi Valkeinen:
- Fix regression with Nokia N900 display
- Fix crash on fbdev using freed __initdata logos
- Fix fb_deferred_io_fsync() return value.
* tag 'fbdev-fixes-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
OMAPDSS: SDI: fix output port_num
video/fbdev: fix defio's fsync
video/logo: prevent use of logos after they have been freed
OMAPDSS: pll: NULL dereference in error handling
OMAPDSS: HDMI: remove double initializer entries
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Pull input layer fixes from Dmitry Torokhov:
"Fixes for v7 protocol for ALPS devices and few other driver fixes.
Also users can request input events to be stamped with boot time
timestamps, in addition to real and monotonic timestamps"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: hil_kbd - fix incorrect use of init_completion
Input: alps - v7: document the v7 touchpad packet protocol
Input: alps - v7: fix finger counting for > 2 fingers on clickpads
Input: alps - v7: sometimes a single touch is reported in mt[1]
Input: alps - v7: ignore new packets
Input: evdev - add CLOCK_BOOTTIME support
Input: psmouse - expose drift duration for IBM trackpoints
Input: stmpe - bias keypad columns properly
Input: stmpe - enforce device tree only mode
mfd: stmpe: add pull up/down register offsets for STMPE
Input: optimize events_per_packet count calculation
Input: edt-ft5x06 - fixed a macro coding style issue
Input: gpio_keys - replace timer and workqueue with delayed workqueue
Input: gpio_keys - allow separating gpio and irq in device tree
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This reverts commit 24a0aa212ee2dbe44360288684478d76a8e20a0a.
It's causing severe userspace breakage. Namely, all the utilities from
wireless-utils which are relying on CONFIG_WEXT (which means tools like
'iwconfig', 'iwlist', etc) are not working anymore. There is a 'iw'
utility in newer wireless-tools, which is supposed to be a replacement
for all the "deprecated" binaries, but it's far away from being
massively adopted.
Please see [1] for example of the userspace breakage this is causing.
In addition to that, Larry Finger reports [2] that this patch is also
causing ipw2200 driver being impossible to build.
To me this clearly shows that CONFIG_WEXT is far, far away from being
"deprecated enough" to be removed.
[1] http://thread.gmane.org/gmane.linux.kernel/1857010
[2] http://thread.gmane.org/gmane.linux.network/343688
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull networking fixes from David Miller:
1) Fix double SKB free in bluetooth 6lowpan layer, from Jukka Rissanen.
2) Fix receive checksum handling in enic driver, from Govindarajulu
Varadarajan.
3) Fix NAPI poll list corruption in virtio_net and caif_virtio, from
Herbert Xu. Also, add code to detect drivers that have this mistake
in the future.
4) Fix doorbell endianness handling in mlx4 driver, from Amir Vadai.
5) Don't clobber IP6CB() before xfrm6_policy_check() is called in TCP
input path,f rom Nicolas Dichtel.
6) Fix MPLS action validation in openvswitch, from Pravin B Shelar.
7) Fix double SKB free in vxlan driver, also from Pravin.
8) When we scrub a packet, which happens when we are switching the
context of the packet (namespace, etc.), we should reset the
secmark. From Thomas Graf.
9) ->ndo_gso_check() needs to do more than return true/false, it also
has to allow the driver to clear netdev feature bits in order for
the caller to be able to proceed properly. From Jesse Gross.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (62 commits)
genetlink: A genl_bind() to an out-of-range multicast group should not WARN().
netlink/genetlink: pass network namespace to bind/unbind
ne2k-pci: Add pci_disable_device in error handling
bonding: change error message to debug message in __bond_release_one()
genetlink: pass multicast bind/unbind to families
netlink: call unbind when releasing socket
netlink: update listeners directly when removing socket
genetlink: pass only network namespace to genl_has_listeners()
netlink: rename netlink_unbind() to netlink_undo_bind()
net: Generalize ndo_gso_check to ndo_features_check
net: incorrect use of init_completion fixup
neigh: remove next ptr from struct neigh_table
net: xilinx: Remove unnecessary temac_property in the driver
net: phy: micrel: use generic config_init for KSZ8021/KSZ8031
net/core: Handle csum for CHECKSUM_COMPLETE VXLAN forwarding
openvswitch: fix odd_ptr_err.cocci warnings
Bluetooth: Fix accepting connections when not using mgmt
Bluetooth: Fix controller configuration with HCI_QUIRK_INVALID_BDADDR
brcmfmac: Do not crash if platform data is not populated
ipw2200: select CFG80211_WEXT
...
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Pull kselftest fix from Shuah Khan:
"Fix exec test compile warnings"
* tag 'linux-kselftest-3.19-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/exec: Use %zu to format size_t
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Commit ac61d1955934 (scsi: set correct completion code in
scsi_send_eh_cmnd()) introduced a bug. It changed the stored return
value from a queuecommand call, but it didn't take into account that
the return value was used again later on. This patch fixes the bug by
changing the later usage.
There is a big comment in the middle of scsi_send_eh_cmnd() which
does a good job of explaining how the routine works. But it mentions
a "rtn = FAILURE" value that doesn't exist in the code. This patch
adjusts the code to match the comment (I assume the comment is right
and the code is wrong).
This fixes Bugzilla #88341.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Андрей Аладьев <aladjev.andrew@gmail.com>
Tested-by: Андрей Аладьев <aladjev.andrew@gmail.com>
Fixes: ac61d19559349e205dad7b5122b281419aa74a82
Acked-by: Hannes Reinecke <hare@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Fix a copy and paste error in the kernel doc description for the params_*()
functions.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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ASoC: Fixes for v3.19
A few fixes for v3.19, a few driver specifics and one core fix which
fixes a boot crash on OMAP if deferred probing kicks in due to
attempting to modify static data.
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Currently we enable Exynos devices in the multi v7 defconfig, however, when
testing on my ODROID-U3, I noticed that USB was not working. Enabling this
option causes USB to work, which enables networking support as well since the
ODROID-U3 has networking on the USB bus.
[arnd] Support for odroid-u3 was added in 3.10, so it would be nice to
backport this fix at least that far.
Signed-off-by: Steev Klimaszewski <steev@gentoo.org>
Cc: stable@vger.kernel.org # 3.10
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Pull "Fixes for 3.19" from Andrew Lunn:
Jason is taking a back seat this cycle and i'm doing all the patch
wrangling for mvebu.
* tag 'mvebu-fixes-3.19' of git://git.infradead.org/linux-mvebu:
ARM: mvebu: Fix pinctrl configuration for Armada 370 DB
Also update to Linux 3.19-rc1, which this was based on.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Unfortunately, while commit 4a928436 ("audit: correctly record file
names with different path name types") fixed a problem where we were
not recording filenames, it created a new problem by attempting to use
these file names after they had been freed. This patch resolves the
issue by creating a copy of the filename which the audit subsystem
frees after it is done with the string.
At some point it would be nice to resolve this issue with refcounts,
or something similar, instead of having to allocate/copy strings, but
that is almost surely beyond the scope of a -rcX patch so we'll defer
that for later. On the plus side, only audit users should be impacted
by the string copying.
Reported-by: Toralf Foerster <toralf.foerster@gmx.de>
Signed-off-by: Paul Moore <pmoore@redhat.com>
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When I/O is aborted by mid-layer, fnic FW will complete the I/O before
completing the abort task. In some cases abort request is completed before
the I/O, which could lead to inconsistent driver and firmware states.
In this case firmware reset would clear the inconsistent state.
Signed-off-by: Anil Chintalapati <achintal@cisco.com>
Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com>
Signed-off-by: Hiral Shah <hishah@cisco.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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7985090aa020 changed the discard heuristics to give preference to the
WRITE SAME commands that (unlike UNMAP) guarantee deterministic results.
Ming Lei discovered that QEMU SCSI's WRITE SAME implementation
internally relied on limits that were only communicated for the UNMAP
case. And therefore discard commands backed by WRITE SAME would fail.
Tweak the heuristics so we still pick UNMAP in the LBPRZ=0 case and only
prefer the WRITE SAME variants if the device has the LBPRZ flag set.
Reported-by: Ming Lei <ming.lei@canonical.com>
Tested-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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After the commit ef691ff48bc8 (OMAPDSS: DT: Get source endpoint by
matching reg-id) we look for the SDI output using the port number.
However, the SDI driver doesn't set the port number, which causes the
SDI display to not initialize.
Fix this by setting the SDI port number to 1. We use a hardcoded value,
as SDI was used only on OMAP3 and it's always port number 1 there.
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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fb_deferred_io_fsync() returns the value of schedule_delayed_work() as
an error code, but schedule_delayed_work() does not return an error. It
returns true/false depending on whether the work was already queued.
Fix this by ignoring the return value of schedule_delayed_work().
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: stable@vger.kernel.org
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Pull CIFS fixes from Steve French:
"A set of three minor cifs fixes"
* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
cifs: make new inode cache when file type is different
Fix signed/unsigned pointer warning
Convert MessageID in smb2_hdr to LE
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Pull UDF & isofs fixes from Jan Kara:
"A couple of UDF fixes of handling of corrupted media and one iso9660
fix of the same"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
udf: Reduce repeated dereferences
udf: Check component length before reading it
udf: Check path length when reading symlink
udf: Verify symlink size before loading it
udf: Verify i_size when loading inode
isofs: Fix unchecked printing of ER records
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Pull power management and ACPI material from Rafael J Wysocki:
"These are fixes (operating performance points library, cpufreq-dt
driver, cpufreq core, ACPI backlight, cpupower tool), cleanups
(cpuidle), new processor IDs for the RAPL (Running Average Power
Limit) power capping driver, and a modification of the generic power
domains framework allowing modular drivers to call one of its helper
functions.
Specifics:
- Fix for a potential NULL pointer dereference in the cpufreq core
due to an initialization race condition (Ethan Zhao).
- Fixes for abuse of the OPP (Operating Performance Points) API
related to RCU and other minor issues in the OPP library and the
cpufreq-dt driver (Dmitry Torokhov).
- cpuidle governors cleanup making them measure idle duration in a
better way without using the CPUIDLE_FLAG_TIME_INVALID flag which
allows that flag to be dropped from the ACPI cpuidle driver and
from the core too (Len Brown).
- New ACPI backlight blacklist entries for Samsung machines without a
working native backlight interface that need to use the ACPI
backlight instead (Aaron Lu).
- New CPU IDs of future Intel Xeon CPUs for the Intel RAPL power
capping driver (Jacob Pan).
- Generic power domains framework modification to export the
of_genpd_get_from_provider() function to modular drivers that will
allow future driver modifications to be based on the mainline (Amit
Daniel Kachhap).
- Two fixes for the cpupower tool (Michal Privoznik, Prarit
Bhargava)"
* tag 'pm+acpi-3.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / video: Add some Samsung models to disable_native_backlight list
tools / cpupower: Fix no idle state information return value
tools / cpupower: Correctly detect if running as root
cpufreq: fix a NULL pointer dereference in __cpufreq_governor()
cpufreq-dt: defer probing if OPP table is not ready
PM / OPP: take RCU lock in dev_pm_opp_get_opp_count
PM / OPP: fix warning in of_free_opp_table()
PM / OPP: add some lockdep annotations
powercap / RAPL: add IDs for future Xeon CPUs
PM / Domains: Export of_genpd_get_from_provider function
cpuidle / ACPI: remove unused CPUIDLE_FLAG_TIME_INVALID
cpuidle: ladder: Better idle duration measurement without using CPUIDLE_FLAG_TIME_INVALID
cpuidle: menu: Better idle duration measurement without using CPUIDLE_FLAG_TIME_INVALID
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Users can request to bind to arbitrary multicast groups, so warning
when the requested group number is out of range is not appropriate.
And with the warning removed, and the 'err' variable properly given
an initial value, we can remove 'found' altogether.
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull spi fixes from Mark Brown:
"A few driver specific fixes here, the DMA burst size increase in the
spfi driver is a fix to make the hardware happier in some situations"
* tag 'spi-v3.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: img-spfi: Increase DMA burst size
spi: img-spfi: Enable controller before starting TX DMA
spi: sh-msiof: Add runtime PM lock in initializing
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Pull one regulator fix from Mark Brown:
"One fix here, a fix for the voltage mapping on one of the s2mps11
regulators which broke systems using it including apparently the
Gear 2 smartwatches"
* tag 'regulator-v3.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: s2mps11: Fix dw_mmc failure on Gear 2
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Pull one MMC fix from Ulf Hansson:
"MMC core:
- Fix selection of buswidth for mmc hosts supporting 1-bit only"
* tag 'mmc-v3.19-2' of git://git.linaro.org/people/ulf.hansson/mmc:
mmc: core: stop trying to switch width when only one bit is supported
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Dave Airlie
Linus Torvalds
Tony Luck
Daniel Vetter
Rob Clark
Pavel Machek
Daniel Borkmann
Richard Weinberger
Tobias Klauser
Walter Goossens
Jiri Kosina
Alan Stern
Lars-Peter Clausen
Takashi Iwai
Steev Klimaszewski
Arnd Bergmann
Paul Moore
Anil Chintalapati (achintal)
Martin K. Petersen
Tomi Valkeinen
David S. Miller