Pull thermal fixes from Zhang Rui:
- Fix cpu_cooling to have separate thermal_cooling_device_ops
structures for cpus with and without power model, to avoid NULL
dereference in cpufreq_state2power. From Brendan Jackman.
- Fix a possible NULL dereference in imx_thermal driver. From Corentin
LABBE.
- Another two trivial fixes, one typo fix and one deleting module
owner. From Caesar Wang and Markus Elfring.
* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: imx: fix a possible NULL dereference
thermal: trivial: fix the typo
Thermal-INT3406: Delete owner assignment
thermal: cpu_cooling: Fix NULL dereference in cpufreq_state2power
Pull UML fix from Richard Weinberger:
"This contains a fix for a build regression introduced during the merge
window"
* 'for-linus-4.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: Don't discard .text.exit section
- Fix a regression in the xenbus device preventing userspace tools
from working.
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Merge tag 'for-linus-4.8b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen regression fix from David Vrabel:
"Fix a regression in the xenbus device preventing userspace tools from
working"
* tag 'for-linus-4.8b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: change the type of xen_vcpu_id to uint32_t
xenbus: don't look up transaction IDs for ordinary writes
We pass xen_vcpu_id mapping information to hypercalls which require
uint32_t type so it would be cleaner to have it as uint32_t. The
initializer to -1 can be dropped as we always do the mapping before using
it and we never check the 'not set' value anyway.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This should really only be done for XS_TRANSACTION_END messages, or
else at least some of the xenstore-* tools don't work anymore.
Fixes: 0beef634b8 ("xenbus: don't BUG() on user mode induced condition")
Reported-by: Richard Schütz <rschuetz@uni-koblenz.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Tested-by: Richard Schütz <rschuetz@uni-koblenz.de>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This includes a single bugfix for vhost-scsi.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull vhost bugfix from Michael Tsirkin:
"This includes a single bugfix for vhost-scsi"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost/scsi: fix reuse of &vq->iov[out] in response
Commit e41f501d39 ("vmlinux.lds: account for destructor sections")
added '.text.exit' to EXIT_TEXT which is discarded at link time by default.
This breaks compilation of UML:
`.text.exit' referenced in section `.fini_array' of
/usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/libc.a(sdlerror.o):
defined in discarded section `.text.exit' of
/usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/libc.a(sdlerror.o)
Apparently UML doesn't want to discard exit text, so let's place all EXIT_TEXT
sections in .exit.text.
Fixes: e41f501d39 ("vmlinux.lds: account for destructor sections")
Reported-by: Stefan Traby <stefan@hello-penguin.com>
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: <stable@vger.kernel.org>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
UBIFS uses full names to work with xattrs, therefore we have to use
xattr_full_name() to obtain the xattr prefix as string.
Cc: <stable@vger.kernel.org>
Cc: Andreas Gruenbacher <agruenba@redhat.com>
Fixes: 2b88fc21ca ("ubifs: Switch to generic xattr handlers")
Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
Tested-by: Dongsheng Yang <dongsheng081251@gmail.com>
An assertion in layout_in_gaps() verifies that the gap_lebs pointer is
below the maximum bound. When computing this maximum bound the idx_lebs
count is multiplied by sizeof(int), while C pointers arithmetic does take
into account the size of the pointed elements implicitly already. Remove
the multiplication to fix the assertion.
Fixes: 1e51764a3c ("UBIFS: add new flash file system")
Cc: <stable@vger.kernel.org>
Signed-off-by: Vincent Stehlé <vincent.stehle@intel.com>
Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
- avoid signed math problems on unexpected compilers
- avoid false positives at very end of kernel text range checks
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Merge tag 'usercopy-v4.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardened usercopy fixes from Kees Cook:
- avoid signed math problems on unexpected compilers
- avoid false positives at very end of kernel text range checks
* tag 'usercopy-v4.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
usercopy: fix overlap check for kernel text
usercopy: avoid potentially undefined behavior in pointer math
Pull crypto fixes from Herbert Xu:
"This fixes a number of memory corruption bugs in the newly added
sha256-mb/sha256-mb code"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: sha512-mb - fix ctx pointer
crypto: sha256-mb - fix ctx pointer and digest copy
The address of the iovec &vq->iov[out] is not guaranteed to contain the scsi
command's response iovec throughout the lifetime of the command. Rather, it
is more likely to contain an iovec from an immediately following command
after looping back around to vhost_get_vq_desc(). Pass along the iovec
entirely instead.
Fixes: 79c14141a4 ("vhost/scsi: Convert completion path to use copy_to_iter")
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
check_bogus_address() checked for pointer overflow using this expression,
where 'ptr' has type 'const void *':
ptr + n < ptr
Since pointer wraparound is undefined behavior, gcc at -O2 by default
treats it like the following, which would not behave as intended:
(long)n < 0
Fortunately, this doesn't currently happen for kernel code because kernel
code is compiled with -fno-strict-overflow. But the expression should be
fixed anyway to use well-defined integer arithmetic, since it could be
treated differently by different compilers in the future or could be
reported by tools checking for undefined behavior.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
- Support for Syscall ABI v4 with upstream gcc 6.x
- Lockdep fix (Daniel Mentz)
- gdb register clobber (Liav Rehana)
- Couple of missing exports for modules
- Other fixes here and there
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Merge tag 'arc-4.8-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fixes from Vineet Gupta:
- support for Syscall ABI v4 with upstream gcc 6.x
- lockdep fix (Daniel Mentz)
- gdb register clobber (Liav Rehana)
- couple of missing exports for modules
- other fixes here and there
* tag 'arc-4.8-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: export __udivdi3 for modules
ARC: mm: fix build breakage with STRICT_MM_TYPECHECKS
ARC: export kmap
ARC: Support syscall ABI v4
ARC: use correct offset in pt_regs for saving/restoring user mode r25
ARC: Elide redundant setup of DMA callbacks
ARC: Call trace_hardirqs_on() before enabling irqs
This fixes a Kconfig issue with UM: when I made GPIOLIB
available to all archs, that included UM, but the OF part
of GPIOLIB requires HAS_IOMEM, so we add HAS_IOMEM as a
dependency to OF_GPIO.
This in turn exposed the fact that a few GPIO drivers were
implicitly assuming OF_GPIO as their dependency but instead
depended on OF alone (the typical problem being a pointer
inside gpio_chip not existing unless OF_GPIO is selected)
and then UM would fail to compile with these drivers
instead. Then I lost patience and made any GPIO driver
depending on just OF depend on OF_GPIO instead, that is
certainly what they meant and the only thing that makes
sense anyway. GPIO with just OF but !OF_GPIO does not make
sense.
Also a fix for the max730x driver data pointer, and a minor
comment fix for the GPIO tools.
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Merge tag 'gpio-v4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Here are a few GPIO fixes for v4.8.
I was expecting some fallout from the new chardev rework but nothing
like that turned up att all. Instead a Kconfig confusion that I think
I have finally nailed, then some ordinary driver noise and trivia.
This fixes a Kconfig issue with UM: when I made GPIOLIB available to
all archs, that included UM, but the OF part of GPIOLIB requires
HAS_IOMEM, so we add HAS_IOMEM as a dependency to OF_GPIO.
This in turn exposed the fact that a few GPIO drivers were implicitly
assuming OF_GPIO as their dependency but instead depended on OF alone
(the typical problem being a pointer inside gpio_chip not existing
unless OF_GPIO is selected) and then UM would fail to compile with
these drivers instead. Then I lost patience and made any GPIO driver
depending on just OF depend on OF_GPIO instead, that is certainly what
they meant and the only thing that makes sense anyway. GPIO with just
OF but !OF_GPIO does not make sense.
Also a fix for the max730x driver data pointer, and a minor comment
fix for the GPIO tools"
* tag 'gpio-v4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: make any OF dependent driver depend on OF_GPIO
gpio: Fix OF build problem on UM
gpio: max730x: set gpiochip data pointer before using it
tools/gpio: fix gpio-event-mon header comment
Pull two parisc fixes from Helge Deller:
"The first patch ensures that the high-res cr16 clocksource (which was
added in kernel 4.7) gets choosen as default clocksource for parisc.
The second patch moves the #define of EREFUSED down inside errno.h and
thus unbreaks building the gccgo compiler"
* 'parisc-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix order of EREFUSED define in errno.h
parisc: Fix automatic selection of cr16 clocksource
This is an entirely new driver instead of yet another set of patches
to sb_edac.c because:
1) Mapping from PCI devices to socket/memory controller is significantly
different. Skylake scatters devices on a socket across a number of
PCI buses.
2) There is an extra level of interleaving via the "mcroute" register
that would be a little messy to squeeze into the old driver.
3) Validation is getting too expensive. Changes to sb_edac need to
be checked against Sandy Bridge, Ivy Bridge, Haswell, Broadwell and
Knights Landing.
Acked-by: Aristeu Rozanski <aris@redhat.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When building gccgo in userspace, errno.h gets parsed and the go include file
sysinfo.go is generated.
Since EREFUSED is defined to the same value as ECONNREFUSED, and ECONNREFUSED
is defined later on in errno.h, this leads to go complaining that EREFUSED
isn't defined yet.
Fix this trivial problem by moving the define of EREFUSED down after
ECONNREFUSED in errno.h (and clean up the indenting while touching this line).
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Commit 54b6680090 (parisc: Add native high-resolution sched_clock()
implementation) added support to use the CPU-internal cr16 counters as reliable
clocksource with the help of HAVE_UNSTABLE_SCHED_CLOCK.
Sadly the commit missed to remove the hack which prevented cr16 to become the
default clocksource even on SMP systems.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.7+
Some module using div_u64() was failing to link because the libgcc 64-bit
divide assist routine was not being exported for modules
Reported-by: avinashp@quantenna.com
Cc: stable@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
The kernel test robot reported a usercopy failure in the new hardened
sanity checks, due to a page-crossing copy of the FPU state into the
task structure.
This happened because the kernel test robot was testing with SLOB, which
doesn't actually do the required book-keeping for slab allocations, and
as a result the hardening code didn't realize that the task struct
allocation was one single allocation - and the sanity checks fail.
Since SLOB doesn't even claim to support hardening (and you really
shouldn't use it), the straightforward solution is to just make the
usercopy hardening code depend on the allocator supporting it.
Reported-by: kernel test robot <xiaolong.ye@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull i2c fixes from Wolfram Sang:
"I2C has some pretty standard driver bugfixes and one minor cleanup"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: meson: Use complete() instead of complete_all()
i2c: brcmstb: Use complete() instead of complete_all()
i2c: bcm-kona: Use complete() instead of complete_all()
i2c: bcm-iproc: Use complete() instead of complete_all()
i2c: at91: fix support of the "alternative command" feature
i2c: ocores: add missed clk_disable_unprepare() on failure paths
i2c: cros-ec-tunnel: Fix usage of cros_ec_cmd_xfer()
i2c: mux: demux-pinctrl: properly roll back when adding adapter fails
| CC mm/memory.o
| In file included from ../mm/memory.c:53:0:
| ../include/linux/pfn_t.h: In function ‘pfn_t_pte’:
| ../include/linux/pfn_t.h:78:2: error: conversion to non-scalar type requested
| return pfn_pte(pfn_t_to_pfn(pfn), pgprot);
With STRICT_MM_TYPECHECKS pte_t is a struct and the offending code
forces a cast which ends up shifting a struct and hence the gcc warning.
Note that in recent past some of the arches (aarch64, s390) made
STRICT_MM_TYPECHECKS default, but we don't for ARC as this leads to slightly
worse generated code, given ARC ABI definition of returning structs
(which pte_t would become)
Quoting from ARC ABI...
"Results of type struct are returned in a caller-supplied temporary
variable whose address is passed in r0.
For such functions, the arguments are shifted so that they are
passed in r1 and up."
So
- struct to be returned would be allocated on stack requiring extra
code at call sites
- callee updates stack memory to facilitate the return (vs. simple
MOV into return reg r0)
Hence STRICT_MM_TYPECHECKS is not enabled by default for ARC
Cc: <stable@vger.kernel.org> #4.4+
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
The syscall ABI includes the gcc functional calling ABI since a syscall
implies userland caller and kernel callee.
The current gcc ABI (v3) for ARCv2 ISA required 64-bit data be passed in
even-odd register pairs, (potentially punching reg holes when passing such
values as args). This was partly driven by the fact that the double-word
LDD/STD instructions in ARCv2 expect the register alignment and thus gcc
forcing this avoids extra MOV at the cost of a few unused register (which we
have plenty anyways).
This however was rejected as part of upstreaming gcc port to HS. So the new
ABI v4 doesn't enforce the even-odd reg restriction.
Do note that for ARCompact ISA builds v3 and v4 are practically the same in
terms of gcc code generation.
In terms of change management, we infer the new ABI if gcc 6.x onwards
is used for building the kernel.
This also needs a stable backport to enable older kernels to work with
new tools/user-space
Cc: <stable@vger.kernel.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
User mode callee regs are explicitly collected before signal delivery or
breakpoint trap. r25 is special for kernel as it serves as task pointer,
so user mode value is clobbered very early. It is saved in pt_regs where
generally only scratch (aka caller saved) regs are saved.
The code to access the corresponding pt_regs location had a subtle bug as
it was using load/store with scaling of offset, whereas the offset was already
byte wise correct. So fix this by replacing LD.AS with a standard LD
Cc: <stable@vger.kernel.org>
Signed-off-by: Liav Rehana <liavr@mellanox.com>
Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com>
[vgupta: rewrote title and commit log]
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
preemption before using this_cpu_ptr()
- a slight increase in DM crypt's mempool reserves to make swap ontop of
DM crypt more performant
- a few DM raid fixes to issues found while testing changes that were
merged in v4.8-rc1
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Merge tag 'dm-4.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- a stable fix for DM round robin multipath path selector to disable
preemption before using this_cpu_ptr()
- a slight increase in DM crypt's mempool reserves to make swap ontop
of DM crypt more performant
- a few DM raid fixes to issues found while testing changes that were
merged in v4.8-rc1
* tag 'dm-4.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm raid: support raid0 with missing metadata devices
dm raid: enhance attempt_restore_of_faulty_devices() to support more devices
dm raid: fix restoring of failed devices regression
dm raid: fix frozen recovery regression
dm crypt: increase mempool reserve to better support swapping
dm round robin: do not use this_cpu_ptr() without having preemption disabled
Six fairly small fixes. The ipr, mpt3sas and ses ones all trigger
oopses. The megaraid one fixes an attach failure on io mapped only
cards, the fcoe one is an obvious problem in the error path and the
aacraid one is a theoretical security issue (ability to trick the
kernel into a buffer overrun).
Signed-off-by: James E. J. Bottomley <jejb@linux.vnet.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:
"Six fairly small fixes. The ipr, mpt3sas and ses ones all trigger
oopses. The megaraid one fixes an attach failure on io mapped only
cards, the fcoe one is an obvious problem in the error path and the
aacraid one is a theoretical security issue (ability to trick the
kernel into a buffer overrun)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
ses: Fix racy cleanup of /sys in remove_dev()
mpt3sas: Fix resume on WarpDrive flash cards
ipr: Fix sync scsi scan
megaraid_sas: Fix probing cards without io port
aacraid: Check size values after double-fetch from user
fcoe: Use kfree_skb() instead of kfree()
Here are a number of USB fixes for reported issues for your tree.
The normal amount of gadget fixes, xhci fixes, new device ids, and a few
other minor things. All of them have been in linux-next for a while,
the full details are in the shortlog below.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of USB fixes for reported issues for your tree.
The normal amount of gadget fixes, xhci fixes, new device ids, and a
few other minor things. All of them have been in linux-next for a
while, the full details are in the shortlog below"
* tag 'usb-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (43 commits)
xhci: don't dereference a xhci member after removing xhci
usb: xhci: Fix panic if disconnect
xhci: really enqueue zero length TRBs.
xhci: always handle "Command Ring Stopped" events
cdc-acm: fix wrong pipe type on rx interrupt xfers
usb: misc: usbtest: add fix for driver hang
usb: dwc3: gadget: stop processing on HWO set
usb: dwc3: don't set last bit for ISOC endpoints
usb: gadget: rndis: free response queue during REMOTE_NDIS_RESET_MSG
usb: udc: core: fix error handling
usb: gadget: fsl_qe_udc: off by one in setup_received_handle()
usb/gadget: fix gadgetfs aio support.
usb: gadget: composite: Fix return value in case of error
usb: gadget: uvc: Fix return value in case of error
usb: gadget: fix check in sync read from ep in gadgetfs
usb: misc: usbtest: usbtest_do_ioctl may return positive integer
usb: dwc3: fix missing platform_set_drvdata() in dwc3_of_simple_probe()
usb: phy: omap-otg: Fix missing platform_set_drvdata() in omap_otg_probe()
usb: gadget: configfs: add mutex lock before unregister gadget
usb: gadget: u_ether: fix dereference after null check coverify warning
...
Changes in this update
- regression fixes for XFS changes introduce in 4.8-rc1
- buffer IO accounting assert failure
- ENOSPC block accounting reservation issue
- DAX IO path page cache invalidation fix
- rmapbt on-disk block count in agf
- correct classification of rmap block type when updating AGFL.
- iomap support for attribute fork mapping
- regression fixes for iomap infrastructure in 4.8-rc1
- fiemap: honor FIEMAP_FLAG_SYNC
- fiemap: implement FIEMAP_FLAG_XATTR support to fix XFS regression
- make mark_page_accessed and pagefault_disable usage consistent with
other IO paths
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Merge tag 'xfs-iomap-for-linus-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pull xfs and iomap fixes from Dave Chinner:
"Changes in this update:
Regression fixes for XFS changes introduce in 4.8-rc1:
- buffer IO accounting assert failure
- ENOSPC block accounting reservation issue
- DAX IO path page cache invalidation fix
- rmapbt on-disk block count in agf
- correct classification of rmap block type when updating AGFL.
- iomap support for attribute fork mapping
Regression fixes for iomap infrastructure in 4.8-rc1:
- fiemap: honor FIEMAP_FLAG_SYNC
- fiemap: implement FIEMAP_FLAG_XATTR support to fix XFS regression
- make mark_page_accessed and pagefault_disable usage consistent with
other IO paths"
* tag 'xfs-iomap-for-linus-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
xfs: remove OWN_AG rmap when allocating a block from the AGFL
xfs: (re-)implement FIEMAP_FLAG_XATTR
xfs: simplify xfs_file_iomap_begin
iomap: mark ->iomap_end as optional
iomap: prepare iomap_fiemap for attribute mappings
iomap: fiemap should honor the FIEMAP_FLAG_SYNC flag
iomap: remove superflous pagefault_disable from iomap_write_actor
iomap: remove superflous mark_page_accessed from iomap_write_actor
xfs: store rmapbt block count in the AGF
xfs: don't invalidate whole file on DAX read/write
xfs: fix bogus space reservation in xfs_iomap_write_allocate
xfs: don't assert fail on non-async buffers on ioacct decrement
Fix a bug in it87 driver and URLs in ftsteutates driver.
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Merge tag 'hwmon-for-linus-v4.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fix a bug in it87 driver and URLs in ftsteutates driver"
* tag 'hwmon-for-linus-v4.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (ftsteutates) Correct ftp urls in driver documentation
hwmon: (it87) Features mask must be 32 bit wide
of_match_device could return NULL, and so cause a NULL pointer
dereference later at line 472:
data->socdata = of_id->data;
For fixing this problem, we use of_device_get_match_data(), this will
simplify the code a little by using a standard function for
getting the match data.
Reported-by: coverity (CID 1324128)
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
See the thermal code, the obvious typo from my editor.
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
The field "owner" is set by core. Thus delete an extra initialisation.
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Currently all CPU cooling devices share a
`struct thermal_cooling_device_ops` instance. The thermal core uses the
presence of functions in this struct to determine if a cooling device
has a power model (see cdev_is_power_actor). cpu_cooling.c adds the
power model functions to the shared struct when a device is registered
with a power model.
Therefore, if a CPU cooling device is registered using
[of_]cpufreq_power_cooling_register, _all_ devices will be determined to
have a power model, including any registered with
[of_]cpufreq_cooling_register. This can result in cpufreq_state2power
being called on a device where dyn_power_table is NULL.
With this commit, instead of having a shared thermal_cooling_device_ops
which is mutated, we have two versions: one with the power functions and
one without.
Signed-off-by: Brendan Jackman <brendan.jackman@arm.com>
Cc: Amit Daniel Kachhap <amit.kachhap@gmail.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Javi Merino <javi.merino@arm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
The drivers that depend on OF but not OF_GPIO are wreaking havoc
with the autobuilders for archs that have all requirements for
OF but not for OF_GPIO, particularly the UM (Usermode) arch does
not have iomem (NO_IOMEM) which result in configuring GPIOLIB but
without OF_GPIO which is wrong if the driver is using the .of_node
of the gpiochip, which only appears with OF_GPIO.
After a brief look at the drivers just depending on OF it seems
most if not all of them actually require stuff from gpiolib-of so
the dependency is wrong in the first place.
This simply patches the Kconfig so that all GPIO drivers using OF
depend on OF_GPIO rather than just OF.
Cc: Rabin Vincent <rabin@rab.in>
Cc: Pramod Gurav <pramod.gurav@smartplayin.com>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Laxman Dewangan <ldewangan@nvidia.com>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Phil Reid <preid@electromag.com.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The UserMode (UM) Linux build was failing in gpiolib-of as it requires
ioremap()/iounmap() to exist, which is absent from UM. The non-existence
of IO memory is negatively defined as CONFIG_NO_IOMEM which means we
need to depend on HAS_IOMEM.
Cc: stable@vger.kernel.org
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Pull more drm fixes from Dave Airlie:
"Daniel pointed out I'd missed some i915 fixes, and I also found a
single etnaviv fix I missed.
So here they are"
* tag 'drm-fixes-for-4.8-rc3-2' of git://people.freedesktop.org/~airlied/linux:
drm/etnaviv: take GPU lock later in the submit process
drm/i915: Fix modeset handling during gpu reset, v5.
drm/i915: fix aliasing_ppgtt leak
drm/i915: fix WaInsertDummyPushConstPs
drm/i915: Fix iboost setting for SKL Y/U DP DDI buffer translation entry 2
drm/i915/gen9: Give one extra block per line for SKL plane WM calculations
drm/i915: Acquire audio powerwell for HD-Audio registers
drm/i915: Add missing rpm wakelock to GGTT pread
drm/i915/fbc: FBC causes display flicker when VT-d is enabled on Skylake
drm/i915: Clean up the extra RPM ref on CHV with i915.enable_rc6=0
drm/i915: Program iboost settings for HDMI/DVI on SKL
drm/i915: Fix iboost setting for DDI with 4 lanes on SKL
drm/i915: Handle ENOSPC after failing to insert a mappable node
drm/i915: Flush GT idle status upon reset
- Couple of DT node ref counting fixes
- Fix __unflatten_device_tree for PPC PCI hotplug case
- Rework marking irq controllers as OF_POPULATED in cases where real
driver is used.
- Disable of_platform_default_populate_init on PPC. The change in
initcall order causes problems which need to be sorted out later.
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Merge tag 'devicetree-fixes-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring:
- a couple of DT node ref counting fixes
- fix __unflatten_device_tree for PPC PCI hotplug case
- rework marking irq controllers as OF_POPULATED in cases where real
driver is used.
- disable of_platform_default_populate_init on PPC. The change in
initcall order causes problems which need to be sorted out later.
* tag 'devicetree-fixes-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: fix reference counting in of_graph_get_endpoint_by_regs
of/platform: disable the of_platform_default_populate_init() for all the ppc boards
ARM: imx6: mark GPC node as not populated after irq init to probe pm domain driver
of/irq: Mark interrupt controllers as populated before initialisation
drivers/of: Validate device node in __unflatten_device_tree()
of: Delete an unnecessary check before the function call "of_node_put"
Thread A Thread B
- inode_lock fileA
- inode_lock fileB
- inode_lock fileA
- inode_lock fileB
We may encounter above potential deadlock during moving file range in
concurrent scenario. This patch fixes the issue by using inode_trylock
instead.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Only if two input files are regular files, we allow copying data in
range of them, otherwise, deny it.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This reverts commit a2ee0a3003.
When testing with generic/032 of xfstest suit, failure message will be
reported as below:
generic/032 8s ... [failed, exit status 1] - output mismatch (see results/generic/032.out.bad)
--- tests/generic/032.out 2015-01-11 16:52:27.643681072 +0800
+++ results/generic/032.out.bad 2016-08-06 13:44:43.861330500 +0800
@@ -1,5 +1,5 @@
QA output created by 032
-100 iterations
-0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
-*
-0100000
+1: [768..775]: unwritten
+Unwritten extents found!
...
(Run 'diff -u tests/generic/032.out results/generic/032.out.bad' to see the entire diff)
Ran: generic/032
Failures: generic/032
Failed 1 of 1 tests
In write_end(), we should update i_size of inode before unlock page,
otherwise, we will lose newly updated data in following race condition.
Thread A Thread B
- write_end
- unlock page
- writepages
- lock_page
- writepage
if page is out-of-range of file size,
we will skip writting the page.
- update i_size
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
LKP reported -36.3% regression of fsmark.files_per_sec due to this patch.
I've confirmed that fxmark [1] has also slight regression for DWAL.
[1] https://github.com/sslab-gatech/fxmark
This reverts commit ec795418c4.
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Merge tag '4.8-doc-fixes' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"Three small fixes for Sphinx-formatted documentation generation"
* tag '4.8-doc-fixes' of git://git.lwn.net/linux:
doc-rst: customize RTD theme, drop padding of inline literal
docs: kernel-documentation: remove some highlight directives
docs: Set the Sphinx default highlight language to "guess"
Collection of i915 fixes.
* tag 'drm-intel-fixes-2016-08-15' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Fix modeset handling during gpu reset, v5.
drm/i915: fix aliasing_ppgtt leak
drm/i915: fix WaInsertDummyPushConstPs
drm/i915: Fix iboost setting for SKL Y/U DP DDI buffer translation entry 2
drm/i915/gen9: Give one extra block per line for SKL plane WM calculations
drm/i915: Acquire audio powerwell for HD-Audio registers
drm/i915: Add missing rpm wakelock to GGTT pread
drm/i915/fbc: FBC causes display flicker when VT-d is enabled on Skylake
drm/i915: Clean up the extra RPM ref on CHV with i915.enable_rc6=0
drm/i915: Program iboost settings for HDMI/DVI on SKL
drm/i915: Fix iboost setting for DDI with 4 lanes on SKL
drm/i915: Handle ENOSPC after failing to insert a mappable node
drm/i915: Flush GT idle status upon reset
