Commit graph

635261 commits

Author SHA1 Message Date
Bibby Hsieh
f752fff611 drm/mediatek: set vblank_disable_allowed to true
MTK DRM driver didn't set the vblank_disable_allowed to
true, it cause that the irq_handler is called every
16.6 ms (every vblank) when the display didn't be updated.

Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Acked-by: CK Hu <ck.hu@mediatek.com>
2016-10-19 09:05:44 +08:00
Bibby Hsieh
83ba62bc70 drm/mediatek: fix a typo of OD_CFG to OD_RELAYMODE
If we want to set the hardware OD to relay mode,
we have to set OD_CFG register rather than
OD_RELAYMODE; otherwise, the system will access
the wrong address.

Fixes: 7216436420 ("drm/mediatek: set mt8173 dithering function")
Cc: stable@vger.kernel.org # v4.9+
Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Acked-by: CK Hu <ck.hu@mediatek.com>
2016-10-19 09:03:20 +08:00
James Hogan
d852b5f35e KVM: MIPS: Add missing uaccess.h include
MIPS KVM uses user memory accessors but mips.c doesn't directly include
uaccess.h, so include it now.

This wasn't too much of a problem before v4.9-rc1 as asm/module.h
included asm/uaccess.h, however since commit 29abfbd9cb ("mips:
separate extable.h, switch module.h to it") this is no longer the case.

This resulted in build failures when trace points were disabled, as
trace/define_trace.h includes trace/trace_events.h only ifdef
TRACEPOINTS_ENABLED, which goes on to include asm/uaccess.h via a couple
of other headers.

Fixes: 29abfbd9cb ("mips: separate extable.h, switch module.h to it")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
2016-10-19 00:37:05 +01:00
Rich Felker
99f453f875 sh: add earlycon support to j2_defconfig
Signed-off-by: Rich Felker <dalias@libc.org>
2016-10-18 18:54:56 -04:00
Rich Felker
db766b0a25 sh: add Kconfig option for J-Core SoC core drivers
Signed-off-by: Rich Felker <dalias@libc.org>
2016-10-18 18:53:37 -04:00
Linus Torvalds
1a1891d762 This includes fixing a bug which references a wrong pointer, sum_page, in
f2fs_gc. It was newly introduced in 4.9-rc1.
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Merge tag 'for-f2fs-4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs bugfix from Jaegeuk Kim:
 "This fixes a bug which referenced the wrong pointer, sum_page, in
  f2fs_gc.  It was newly introduced in 4.9-rc1.

* tag 'for-f2fs-4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
  f2fs: fix wrong sum_page pointer in f2fs_gc
2016-10-18 14:15:23 -07:00
Lorenzo Stoakes
c164154f66 mm: replace get_user_pages_unlocked() write/force parameters with gup_flags
This removes the 'write' and 'force' use from get_user_pages_unlocked()
and replaces them with 'gup_flags' to make the use of FOLL_FORCE
explicit in callers as use of this flag can result in surprising
behaviour (and hence bugs) within the mm subsystem.

Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-18 14:13:37 -07:00
Lorenzo Stoakes
d4944b0ece mm: remove write/force parameters from __get_user_pages_unlocked()
This removes the redundant 'write' and 'force' parameters from
__get_user_pages_unlocked() to make the use of FOLL_FORCE explicit in
callers as use of this flag can result in surprising behaviour (and
hence bugs) within the mm subsystem.

Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-18 14:13:37 -07:00
Lorenzo Stoakes
859110d749 mm: remove write/force parameters from __get_user_pages_locked()
This removes the redundant 'write' and 'force' parameters from
__get_user_pages_locked() to make the use of FOLL_FORCE explicit in
callers as use of this flag can result in surprising behaviour (and
hence bugs) within the mm subsystem.

Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-18 14:13:36 -07:00
Linus Torvalds
19be0eaffa mm: remove gup_flags FOLL_WRITE games from __get_user_pages()
This is an ancient bug that was actually attempted to be fixed once
(badly) by me eleven years ago in commit 4ceb5db975 ("Fix
get_user_pages() race for write access") but that was then undone due to
problems on s390 by commit f33ea7f404 ("fix get_user_pages bug").

In the meantime, the s390 situation has long been fixed, and we can now
fix it by checking the pte_dirty() bit properly (and do it better).  The
s390 dirty bit was implemented in abf09bed3c ("s390/mm: implement
software dirty bits") which made it into v3.9.  Earlier kernels will
have to look at the page state itself.

Also, the VM has become more scalable, and what used a purely
theoretical race back then has become easier to trigger.

To fix it, we introduce a new internal FOLL_COW flag to mark the "yes,
we already did a COW" rather than play racy games with FOLL_WRITE that
is very fundamental, and then use the pte dirty flag to validate that
the FOLL_COW flag is still valid.

Reported-and-tested-by: Phil "not Paul" Oester <kernel@linuxace.com>
Acked-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Michal Hocko <mhocko@suse.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Nick Piggin <npiggin@gmail.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-18 14:13:29 -07:00
Wei Yongjun
b4f0fd4baa qed: Use list_move_tail instead of list_del/list_add_tail
Using list_move_tail() instead of list_del() + list_add_tail().

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 16:40:41 -04:00
Arnd Bergmann
ecf244f753 rocker: fix maybe-uninitialized warning
In some rare configurations, we get a warning about the 'index' variable
being used without an initialization:

drivers/net/ethernet/rocker/rocker_ofdpa.c: In function ‘ofdpa_port_fib_ipv4.isra.16.constprop’:
drivers/net/ethernet/rocker/rocker_ofdpa.c:2425:92: warning: ‘index’ may be used uninitialized in this function [-Wmaybe-uninitialized]

This is a false positive, the logic is just a bit too complex for gcc
to follow here. Moving the intialization of 'index' a little further
down makes it clear to gcc that the function always returns an error
if it is not initialized.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 14:20:36 -04:00
Arnd Bergmann
52ccd63184 net/hyperv: avoid uninitialized variable
The hdr_offset variable is only if we deal with a TCP or UDP packet,
but as the check surrounding its usage tests for skb_is_gso()
instead, the compiler has no idea if the variable is initialized
or not at that point:

drivers/net/hyperv/netvsc_drv.c: In function ‘netvsc_start_xmit’:
drivers/net/hyperv/netvsc_drv.c:494:42: error: ‘hdr_offset’ may be used uninitialized in this function [-Werror=maybe-uninitialized]

This adds an additional check for the transport type, which
tells the compiler that this path cannot happen. Since the
get_net_transport_info() function should always be inlined
here, I don't expect this to result in additional runtime
checks.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 14:20:36 -04:00
Arnd Bergmann
4b75ca5a7a net: bcm63xx: avoid referencing uninitialized variable
gcc found a reference to an uninitialized variable in the error handling
of bcm_enet_open, introduced by a recent cleanup:

drivers/net/ethernet/broadcom/bcm63xx_enet.c: In function 'bcm_enet_open'
drivers/net/ethernet/broadcom/bcm63xx_enet.c:1129:2: warning: 'phydev' may be used uninitialized in this function [-Wmaybe-uninitialized]

This makes the use of that variable conditional, so we only reference it
here after it has been used before. Unlike my normal patches, I have not
build-tested this one, as I don't currently have mips test in my
randconfig setup.

Fixes: 625eb8667d ("net: ethernet: broadcom: bcm63xx: use phydev from struct net_device")
Cc: Philippe Reynes <tremyfr@gmail.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 14:20:36 -04:00
Eric Dumazet
41ee9c557e soreuseport: do not export reuseport_add_sock()
reuseport_add_sock() is not used from a module,
no need to export it.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 14:18:23 -04:00
Thomas Falcon
87737f8810 ibmvnic: Update MTU after device initialization
It is possible for the MTU to be changed during the initialization
process with the VNIC Server.  Ensure that the net device is updated
to reflect the new MTU.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 14:17:13 -04:00
Thomas Falcon
12608c260d ibmvnic: Fix GFP_KERNEL allocation in interrupt context
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 14:17:13 -04:00
Thomas Falcon
9fa2f2cca2 ibmvnic: Driver Version 1.0.1
Increment driver version to reflect features that have
been added since release.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 14:17:13 -04:00
Shawn Lin
7c62731944 arm64: dts: rockchip: remove the abuse of keep-power-in-suspend
It was invented for sdio only, and should not be used for sdmmc
or emmc. Remove it.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-10-18 20:03:54 +02:00
Mike Snitzer
937fa62e8a dm rq: clear kworker_task if kthread_run() returned an error
cleanup_mapped_device() calls kthread_stop() if kworker_task is
non-NULL.  Currently the assigned value could be a valid task struct or
an error code (e.g -ENOMEM).  Reset md->kworker_task to NULL if
kthread_run() returned an erorr.

Fixes: 7193a9defc ("dm rq: check kthread_run return for .request_fn request-based DM")
Cc: stable@vger.kernel.org # 4.8
Reported-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-10-18 14:02:04 -04:00
Nikolay Aleksandrov
7cb3f9214d bridge: multicast: restore perm router ports on multicast enable
Satish reported a problem with the perm multicast router ports not getting
reenabled after some series of events, in particular if it happens that the
multicast snooping has been disabled and the port goes to disabled state
then it will be deleted from the router port list, but if it moves into
non-disabled state it will not be re-added because the mcast snooping is
still disabled, and enabling snooping later does nothing.

Here are the steps to reproduce, setup br0 with snooping enabled and eth1
added as a perm router (multicast_router = 2):
1. $ echo 0 > /sys/class/net/br0/bridge/multicast_snooping
2. $ ip l set eth1 down
^ This step deletes the interface from the router list
3. $ ip l set eth1 up
^ This step does not add it again because mcast snooping is disabled
4. $ echo 1 > /sys/class/net/br0/bridge/multicast_snooping
5. $ bridge -d -s mdb show
<empty>

At this point we have mcast enabled and eth1 as a perm router (value = 2)
but it is not in the router list which is incorrect.

After this change:
1. $ echo 0 > /sys/class/net/br0/bridge/multicast_snooping
2. $ ip l set eth1 down
^ This step deletes the interface from the router list
3. $ ip l set eth1 up
^ This step does not add it again because mcast snooping is disabled
4. $ echo 1 > /sys/class/net/br0/bridge/multicast_snooping
5. $ bridge -d -s mdb show
router ports on br0: eth1

Note: we can directly do br_multicast_enable_port for all because the
querier timer already has checks for the port state and will simply
expire if it's in blocking/disabled. See the comment added by
commit 9aa6638216 ("bridge: multicast: add a comment to
br_port_state_selection about blocking state")

Fixes: 561f1103a2 ("bridge: Add multicast_snooping sysfs toggle")
Reported-by: Satish Ashok <sashok@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 13:52:13 -04:00
Linus Torvalds
0832881425 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Misc fixes, plus hw-enablement changes:

   - fix persistent RAM handling
   - remove pkeys warning
   - remove duplicate macro
   - fix debug warning in irq handler
   - add new 'Knights Mill' CPU related constants and enable the perf bits"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/uncore: Add Knights Mill CPUID
  perf/x86/intel/rapl: Add Knights Mill CPUID
  perf/x86/intel: Add Knights Mill CPUID
  x86/cpu/intel: Add Knights Mill to Intel family
  x86/e820: Don't merge consecutive E820_PRAM ranges
  pkeys: Remove easily triggered WARN
  x86: Remove duplicate rtit status MSR macro
  x86/smp: Add irq_enter/exit() in smp_reschedule_interrupt()
2016-10-18 09:59:04 -07:00
Linus Torvalds
9d71bdfbcb Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixlet from Ingo Molnar:
 "Remove an unused variable"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  alarmtimer: Remove unused but set variable
2016-10-18 09:57:12 -07:00
Linus Torvalds
2c11fc87ca Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Ingo Molnar:
 "Fix a crash that can trigger when racing with CPU hotplug: we didn't
  use sched-domains data structures carefully enough in select_idle_cpu()"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Fix sched domains NULL dereference in select_idle_sibling()
2016-10-18 09:53:59 -07:00
Linus Torvalds
b75d3886f3 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Four tooling fixes, two kprobes KASAN related fixes and an x86 PMU
  driver fix/cleanup"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf jit: Fix build issue on Ubuntu
  perf jevents: Handle events including .c and .o
  perf/x86/intel: Remove an inconsistent NULL check
  kprobes: Unpoison stack in jprobe_return() for KASAN
  kprobes: Avoid false KASAN reports during stack copy
  perf header: Set nr_numa_nodes only when we parsed all the data
  perf top: Fix refreshing hierarchy entries on TUI
2016-10-18 09:30:18 -07:00
Linus Torvalds
e0ed1c22d4 Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Ingo Molnar:
 "Two fixes:

   - a file locks fix (missing critical section, bug introduced in this
     merge window)

   - an x86 down_write() stack frame annotation"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking, fs/locks: Add missing file_sem locks
  locking/rwsem/x86: Add stack frame dependency for ____down_write()
2016-10-18 09:04:17 -07:00
Tahsin Erdogan
d09960b003 dm: free io_barrier after blk_cleanup_queue call
dm_old_request_fn() has paths that access md->io_barrier.  The party
destroying io_barrier should ensure that no future execution of
dm_old_request_fn() is possible.  Move io_barrier destruction to below
blk_cleanup_queue() to ensure this and avoid a NULL pointer crash during
request-based DM device shutdown.

Cc: stable@vger.kernel.org # 4.3+
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-10-18 12:02:08 -04:00
Linus Torvalds
50276c9abb Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Ingo Molnar:
 "Three irqchip driver fixes"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gicv3: Handle loop timeout proper
  irqchip/jcore: Fix lost per-cpu interrupts
  irqchip/eznps: Acknowledge NPS_IPI before calling the handler
2016-10-18 09:01:22 -07:00
Arnd Bergmann
d2e4d59351 netfilter: nf_tables: avoid uninitialized variable warning
The newly added nft_range_eval() function handles the two possible
nft range operations, but as the compiler warning points out,
any unexpected value would lead to the 'mismatch' variable being
used without being initialized:

net/netfilter/nft_range.c: In function 'nft_range_eval':
net/netfilter/nft_range.c:45:5: error: 'mismatch' may be used uninitialized in this function [-Werror=maybe-uninitialized]

This removes the variable in question and instead moves the
condition into the switch itself, which is potentially more
efficient than adding a bogus 'default' clause as in my
first approach, and is nicer than using the 'uninitialized_var'
macro.

Fixes: 0f3cd9b369 ("netfilter: nf_tables: add range expression")
Link: http://patchwork.ozlabs.org/patch/677114/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-10-18 17:35:10 +02:00
Linus Torvalds
351267d941 Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc fixes from Ingo Molnar:
 "A CPU hotplug debuggability fix and three objtool false positive
  warnings fixes for new GCC6 code generation patterns"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu/hotplug: Use distinct name for cpu_hotplug.dep_map
  objtool: Skip all "unreachable instruction" warnings for gcov kernels
  objtool: Improve rare switch jump table pattern detection
  objtool: Support '-mtune=atom' stack frame setup instruction
2016-10-18 08:35:07 -07:00
Linus Torvalds
5aa43efe90 IEEE 1394 subsystem patch:
- catch an initialization error in the packet sniffer nosy
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Merge tag 'firewire-update' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394

Pull firewire fixlet from Stefan Richter:
 "IEEE 1394 subsystem patch: catch an initialization error in the packet
  sniffer nosy"

* tag 'firewire-update' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: nosy: do not ignore errors in ioremap_nocache()
2016-10-18 08:28:08 -07:00
Ard Biesheuvel
6026ed2fe2 MAINTAINERS: Add myself as EFI maintainer
At the request of Matt, I am taking up co-maintainership of the EFI
subsystem. So add my name to the EFI section in MAINTAINERS, and
change the SCM tree reference to point to the new shared Git repo.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20161018143318.15673-2-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-10-18 17:11:14 +02:00
Linus Torvalds
37c1e28931 drm: amdgpu/radeon and one core regression fix
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Merge tag 'drm-fixes-for-v4.9-rc2' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "Just had a couple of amdgpu fixes and one core fix I wanted to get out
  early to fix some regressions.

  I'm sure I'll have more stuff this week for -rc2"

* tag 'drm-fixes-for-v4.9-rc2' of git://people.freedesktop.org/~airlied/linux: (22 commits)
  drm: Print device information again in debugfs
  drm/amd/powerplay: fix bug stop dpm can't work on Vi.
  drm/amd/powerplay: notify smu no display by default.
  drm/amdgpu/dpm: implement thermal sensor for CZ/ST
  drm/amdgpu/powerplay: implement thermal sensor for CZ/ST
  drm/amdgpu: disable smu hw first on tear down
  drm/amdgpu: fix amdgpu_need_full_reset (v2)
  drm/amdgpu/si_dpm: Limit clocks on HD86xx part
  drm/amd/powerplay: fix static checker warnings in smu7_hwmgr.c
  drm/amdgpu: potential NULL dereference in debugfs code
  drm/amd/powerplay: fix static checker warnings in smu7_hwmgr.c
  drm/amd/powerplay: fix static checker warnings in iceland_smc.c
  drm/radeon: change vblank_time's calculation method to reduce computational error.
  drm/amdgpu: change vblank_time's calculation method to reduce computational error.
  drm/amdgpu: clarify UVD/VCE special handling for CG
  drm/amd/amdgpu: enable clockgating only after late init
  drm/radeon: allow TA_CS_BC_BASE_ADDR on SI
  drm/amdgpu: initialize the context reset_counter in amdgpu_ctx_init
  drm/amdgpu/gfx8: fix CGCG_CGLS handling
  drm/radeon: fix modeset tear down code
  ...
2016-10-18 08:05:29 -07:00
Jérémy Lefaure
d661976106 dmaengine: mmp_tdma: add missing select GENERIC_ALLOCATOR in Kconfig
There are some compilation errors when CONFIG_MMP_TDMA is enabled and
CONFIG_GENERIC_ALLOCATOR is disabled:

drivers/built-in.o: In function `mmp_tdma_prep_dma_cyclic':
mmp_tdma.c:(.text+0x7890e): undefined reference to `gen_pool_dma_alloc'
drivers/built-in.o: In function `mmp_tdma_free_chan_resources':
mmp_tdma.c:(.text+0x78aca): undefined reference to `gen_pool_free'
drivers/built-in.o: In function `mmp_tdma_probe':
mmp_tdma.c:(.text+0x78ea8): undefined reference to `of_gen_pool_get'

This commit fix this problem by selecting GENERIC_ALLOCATOR when
CONFIG_MMP_TDMA is enabled.

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-10-18 20:32:56 +05:30
Wei Yongjun
f95df7d6cd dmaengine: edma: Fix error return code in edma_alloc_chan_resources()
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-10-18 20:18:14 +05:30
Tobias Klauser
7ab488951a tcp: Remove unused but set variable
Remove the unused but set variable icsk in listening_get_next to fix the
following GCC warning when building with 'W=1':

  net/ipv4/tcp_ipv4.c: In function ‘listening_get_next’:
  net/ipv4/tcp_ipv4.c:1890:31: warning: variable ‘icsk’ set but not used [-Wunused-but-set-variable]

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 10:34:27 -04:00
Ganesh Goudar
a56177e18f cxgb4: Fix number of queue sets corssing the limit
Do not let number of offload queue sets to go more than
MAX_OFLD_QSETS, which would otherwise crash the driver
on machines with cores more than MAX_OFLD_QSETS.

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 10:32:39 -04:00
Tobias Klauser
7e1670c15c ipv4: Remove unused but set variable
Remove the unused but set variable dev in ip_do_fragment to fix the
following GCC warning when building with 'W=1':

  net/ipv4/ip_output.c: In function ‘ip_do_fragment’:
  net/ipv4/ip_output.c:541:21: warning: variable ‘dev’ set but not used [-Wunused-but-set-variable]

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 10:30:28 -04:00
Niklas Cassel
1826277802 dwc_eth_qos: enable flow control by default
Allow autoneg to enable flow control by default.
The behavior when autoneg is off has not changed.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: Jesper Nilsson <jespern@axis.com>
Acked-by: Lars Persson <larper@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 10:29:17 -04:00
Niklas Cassel
902943c0d7 dwc_eth_qos: do not clear pause flags from phy_device->supported
phy_device->supported is originally set by the PHY driver.
The ethernet driver should filter phy_device->supported to only contain
flags supported by the IP.
The IP supports setting rx and tx flow control independently,
therefore SUPPORTED_Pause and SUPPORTED_Asym_Pause should not be cleared.
If the flags are cleared, pause frames cannot be enabled (even if they
are supported by the PHY).

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: Jesper Nilsson <jespern@axis.com>
Acked-by: Lars Persson <larper@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 10:29:17 -04:00
Tobias Klauser
8d324fd9e1 net/hsr: Remove unused but set variable
Remove the unused but set variable master_dev in check_local_dest to fix
the following GCC warning when building with 'W=1':

  net/hsr/hsr_forward.c: In function ‘check_local_dest’:
  net/hsr/hsr_forward.c:303:21: warning: variable ‘master_dev’ set but not used [-Wunused-but-set-variable]

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 10:28:18 -04:00
David S. Miller
5cbee55736 This is relatively small, mostly to get the SG/crypto
from stack removal fix that crashes things when VMAP
 stack is used in conjunction with software crypto.
 
 Aside from that, we have:
  * a fix for AP_VLAN usage with the nl80211 frame command
  * two fixes (and two preparation patches) for A-MSDU, one
    to discard group-addressed (multicast) and unexpected
    4-address A-MSDUs, the other to validate A-MSDU inner
    MAC addresses properly to prevent controlled port bypass
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Merge tag 'mac80211-for-davem-2016-10-18' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
This is relatively small, mostly to get the SG/crypto
from stack removal fix that crashes things when VMAP
stack is used in conjunction with software crypto.

Aside from that, we have:
 * a fix for AP_VLAN usage with the nl80211 frame command
 * two fixes (and two preparation patches) for A-MSDU, one
   to discard group-addressed (multicast) and unexpected
   4-address A-MSDUs, the other to validate A-MSDU inner
   MAC addresses properly to prevent controlled port bypass
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 10:26:15 -04:00
Ivan Vecera
6bc80629ee bnx2: fix locking when netconsole is used
Functions bnx2_reg_rd_ind(), bnx2_reg_wr_ind() and bnx2_ctx_wr()
can be called with IRQs disabled when netconsole is enabled. So they
should use spin_{,un}lock_irq{save,restore} instead of _bh variants.

Example call flow:
bnx2_poll()
  ->bnx2_poll_link()
    ->bnx2_phy_int()
      ->bnx2_set_remote_link()
        ->bnx2_shmem_rd()
          ->bnx2_reg_rd_ind()
            -> spin_lock_bh(&bp->indirect_lock);
               spin_unlock_bh(&bp->indirect_lock);
               ...
               -> __local_bh_enable_ip

static inline void __local_bh_enable_ip(unsigned long ip)
      WARN_ON_ONCE(in_irq() || irqs_disabled());   <<<<<< WARN

Cc: Sony Chacko <sony.chacko@qlogic.com>
Cc: Dept-HSGLinuxNICDev@qlogic.com
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 10:01:51 -04:00
Chris Mason
112a3edf4b Merge branch 'for-chris-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.9 2016-10-18 06:51:33 -07:00
Miklos Szeredi
0ce267ff95 fuse: fix root dentry initialization
Add missing dentry initialization to root dentry.

Fixes: f75fdf22b0 ("fuse: don't use ->d_time")
Reported-by: Andreas Reis <andreas.reis@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2016-10-18 15:36:48 +02:00
Mika Westerberg
c538b94367 pinctrl: intel: Only restore pins that are used by the driver
Dell XPS 13 (and maybe some others) uses a GPIO (CPU_GP_1) during suspend
to explicitly disable USB touchscreen interrupt. This is done to prevent
situation where the lid is closed the touchscreen is left functional.

The pinctrl driver (wrongly) assumes it owns all pins which are owned by
host and not locked down. It is perfectly fine for BIOS to use those pins
as it is also considered as host in this context.

What happens is that when the lid of Dell XPS 13 is closed, the BIOS
configures CPU_GP_1 low disabling the touchscreen interrupt. During resume
we restore all host owned pins to the known state which includes CPU_GP_1
and this overwrites what the BIOS has programmed there causing the
touchscreen to fail as no interrupts are reaching the CPU anymore.

Fix this by restoring only those pins we know are explicitly requested by
the kernel one way or other.

Cc: stable@vger.kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=176361
Reported-by: AceLan Kao <acelan.kao@canonical.com>
Tested-by: AceLan Kao <acelan.kao@canonical.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-10-18 14:38:16 +02:00
Ville Syrjälä
a171bc51fa pinctrl: baytrail: Fix lockdep
Initialize the spinlock before using it.

INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 2 PID: 1 Comm: swapper/0 Not tainted 4.8.0-dwc-bisect #4
Hardware name: Intel Corp. VALLEYVIEW C0 PLATFORM/BYT-T FFD8, BIOS BLAKFF81.X64.0088.R10.1403240443 FFD8_X64_R_2014_13_1_00 03/24/2014
 0000000000000000 ffff8800788ff770 ffffffff8133d597 0000000000000000
 0000000000000000 ffff8800788ff7e0 ffffffff810cfb9e 0000000000000002
 ffff8800788ff7d0 ffffffff8205b600 0000000000000002 ffff8800788ff7f0
Call Trace:
 [<ffffffff8133d597>] dump_stack+0x67/0x90
 [<ffffffff810cfb9e>] register_lock_class+0x52e/0x540
 [<ffffffff810d2081>] __lock_acquire+0x81/0x16b0
 [<ffffffff810cede1>] ? save_trace+0x41/0xd0
 [<ffffffff810d33b2>] ? __lock_acquire+0x13b2/0x16b0
 [<ffffffff810cf05a>] ? __lock_is_held+0x4a/0x70
 [<ffffffff810d3b1a>] lock_acquire+0xba/0x220
 [<ffffffff8136f1fe>] ? byt_gpio_get_direction+0x3e/0x80
 [<ffffffff81631567>] _raw_spin_lock_irqsave+0x47/0x60
 [<ffffffff8136f1fe>] ? byt_gpio_get_direction+0x3e/0x80
 [<ffffffff8136f1fe>] byt_gpio_get_direction+0x3e/0x80
 [<ffffffff813740a9>] gpiochip_add_data+0x319/0x7d0
 [<ffffffff81631723>] ? _raw_spin_unlock_irqrestore+0x43/0x70
 [<ffffffff8136fe3b>] byt_pinctrl_probe+0x2fb/0x620
 [<ffffffff8142fb0c>] platform_drv_probe+0x3c/0xa0
...

Based on the diff it looks like the problem was introduced in
commit 71e6ca61e8 ("pinctrl: baytrail: Register pin control handling")
but I wasn't able to verify that empirically as the parent commit
just oopsed when I tried to boot it.

Cc: Cristina Ciocan <cristina.ciocan@intel.com>
Cc: stable@vger.kernel.org
Fixes: 71e6ca61e8 ("pinctrl: baytrail: Register pin control handling")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-10-18 14:36:13 +02:00
Andrew Jeffery
8eb37aff76 pinctrl: aspeed-g5: Fix pin association of SPI1 function
The SPI1 function was associated with the wrong pins: The functions that
those pins provide is either an SPI debug or passthrough function
coupled to SPI1. Make the SPI1 mux function configure the relevant pins
and associate new SPI1DEBUG and SPI1PASSTHRU functions with the pins
that were already defined.

The notation used in the datasheet's multi-function pin table for the SoC is
often creative: in this case the SYS* signals are enabled by a single bit,
which is nothing unusual on its own, but in this case the bit was also
participating in a multi-bit bitfield and therefore represented multiple
functions. This fact was overlooked in the original patch.

Fixes: 56e57cb6c0 (pinctrl: Add pinctrl-aspeed-g5 driver)
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-10-18 14:36:12 +02:00
Andrew Jeffery
d3dbabe984 pinctrl: aspeed-g5: Fix GPIOE1 typo
This prevented C20 from successfully being muxed as GPIO.

Fixes: 56e57cb6c0 (pinctrl: Add pinctrl-aspeed-g5 driver)
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-10-18 14:36:11 +02:00
Andrew Jeffery
97e8c3f5e7 pinctrl: aspeed-g5: Fix names of GPID2 pins
Fixes simple typos in the initial commit. There is no behavioural
change.

Fixes: 56e57cb6c0 (pinctrl: Add pinctrl-aspeed-g5 driver)
Reported-by: Xo Wang <xow@google.com>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-10-18 14:36:11 +02:00