Commit graph

519977 commits

Author SHA1 Message Date
Malcolm Priestley b23f14302e staging: vt6656: use ieee80211_tx_info to select packet type.
Information for packet type is in ieee80211_tx_info

band IEEE80211_BAND_5GHZ for PK_TYPE_11A.

IEEE80211_TX_RC_USE_CTS_PROTECT via tx_rate flags selects PK_TYPE_11GB

This ensures that the packet is always the right type.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Cc: <stable@vger.kernel.org> # v3.17+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-08 14:28:04 +02:00
Semen Protsenko 66cf1d8473 serial: omap: Fix error handling in probe
There is pm_qos_add_request() being executed on serial_omap_probe(),
which stores "&up->pm_qos_request" from omap-serial driver to
"pm_qos_array[PM_QOS_CPU_DMA_LATENCY]->constraints". If
serial_omap_probe() fails after pm_qos_add_request() (e.g. on
uart_add_one_port() call), pm_qos_array still keeping pm_qos_request
struct from omap-serial driver, which is not valid anymore (since driver
failed). This leads further to kernel crash on pm_qos_update_target(),
executing from some completely different driver.

We were observing this while trying to run audio playback while having
one of omap-serial driver instances failed on uart_add_one_port() call:
    Unable to handle kernel paging request at virtual address fffffffc
    Backtrace:
    (plist_add) from (pm_qos_update_target)
    (pm_qos_update_target) from (pm_qos_add_request)
    (pm_qos_add_request) from (snd_pcm_hw_params)
    (snd_pcm_hw_params) from (snd_pcm_common_ioctl1)
    (snd_pcm_common_ioctl1) from (snd_pcm_playback_ioctl1)
    (snd_pcm_playback_ioctl1) from (snd_pcm_playback_ioctl)
    (snd_pcm_playback_ioctl) from (do_vfs_ioctl)
    (do_vfs_ioctl) from (SyS_ioctl)
    (SyS_ioctl) from (ret_fast_syscall)

This patch adds pm_qos_remove_request() on fail path in
serial_omap_probe() in order to fix this issue. While at it, free the
wakeup settings on fail path as well, just like it's done in
serial_omap_remove().

Signed-off-by: Semen Protsenko <semen.protsenko@globallogic.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-08 14:20:50 +02:00
Peter Hurley 66c53aaa9c earlycon: Revert log warnings
Log warnings meant to help diagnose problems setting up earlycon
are reporting false positives for 'console='. Revert to the
previous behavior which reported nothing.

Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Robert Schwebel <r.schwebel@pengutronix.de>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-08 14:20:50 +02:00
Mario Kleiner 3790e395b8 drm/tegra: Don't use vblank_disable_immediate on incapable driver.
Tegra would not only need a hardware vblank counter that
increments at leading edge of vblank, but also support
for instantaneous high precision vblank timestamp queries, ie.
a proper implementation of dev->driver->get_vblank_timestamp().

Without these, there can be off-by-one errors during vblank
disable/enable if the scanout is inside vblank at en/disable
time, and additionally clients will never see any useable
vblank timestamps when querying via drmWaitVblank ioctl. This
would negatively affect swap scheduling under X11 and Wayland.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-05-08 20:56:34 +10:00
Dave Airlie 94754c183a Merge tag 'drm-amdkfd-fixes-2015-05-07' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes
- Add missing initialization of SDMA vm register when creating an SDMA queue
- Don't report local memory size, as we don't support local memory allocation
  yet.
- Allow to unregister process with exisiting queues. Until now we blocked
  it with BUG_ON, which was also an error by itself.

* tag 'drm-amdkfd-fixes-2015-05-07' of git://people.freedesktop.org/~gabbayo/linux:
  drm/amdkfd: Initialize sdma vm when creating sdma queue
  drm/amdkfd: Don't report local memory size
  drm/amdkfd: allow unregister process with queues
2015-05-08 20:52:51 +10:00
Dave Airlie 7122e505a5 Merge branch 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Mostly stability fixes for UVD and VCE, plus a few other bug and regression
fixes.

* 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: stop trying to suspend UVD sessions
  drm/radeon: more strictly validate the UVD codec
  drm/radeon: make UVD handle checking more strict
  drm/radeon: make VCE handle check more strict
  drm/radeon: fix userptr lockup
  drm/radeon: fix userptr BO unpin bug v3
  drm/radeon: don't setup audio on asics that don't support it
  drm/radeon: disable semaphores for UVD V1 (v2)
2015-05-08 20:52:21 +10:00
Michael Ellerman cb30711374 perf_event: Don't allow vmalloc() backed perf on powerpc
On powerpc the perf event interrupt is not masked when interrupts are
disabled, allowing it to function as an NMI.

This causes problems if perf is using vmalloc. If we take a page fault
on the vmalloc region the fault handler will fail the page fault because
it detects we are coming in from an NMI (see do_hash_page()).

We don't actually need or want vmalloc backed perf so just disable it on
powerpc.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: <linuxppc-dev@ozlabs.org>
Cc: Andrew Morton <akpm@osdl.org>
Cc: Anton Blanchard <anton@samba.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: acme@ghostprotocols.net
Cc: sukadev@linux.vnet.ibm.com
Link: http://lkml.kernel.org/r/1430720799-18426-1-git-send-email-mpe@ellerman.id.au
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-08 12:26:01 +02:00
Peter Zijlstra ff303e66c2 perf: Fix software migrate events
Stephane asked about PERF_COUNT_SW_CPU_MIGRATIONS and I realized it
was borken:

 > The problem is that the task isn't actually scheduled while its being
 > migrated (obviously), and if its not scheduled, the counters aren't
 > scheduled either, so there's no observing of the fact.
 >
 > A further problem with migrations is that many migrations happen from
 > softirq context, which is nested inside the 'random' task context of
 > whoemever happens to run at that time, similarly for the wakeup
 > migrations triggered from (soft)irq context. All those end up being
 > accounted in the task that's currently running, eg. your 'ls'.

The below cures this by marking a task as migrated and accounting it
on the subsequent sched_in().

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-08 12:25:38 +02:00
Kan Liang 6d37405635 perf/x86/intel: Fix SLM cache event list
iTLB-load-misses and LLC-load-misses count incorrectly on SLM.

There is no ITLB.MISSES support on SLM. Event PAGE_WALKS.I_SIDE_WALK
should be used to count iTLB-load-misses. This event counts when an
instruction (I) page walk is completed or started. Since a page walk
implies a TLB miss, the number of TLB misses can be counted by counting
the number of pagewalks.

DMND_DATA_RD counts both demand and DCU prefetch data reads. However,
LLC-load-misses should only count demand reads. There is no way to not
include prefetches with a single counter on SLM. So the LLC-load-misses
support should be removed on SLM.

Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1429608881-5055-1-git-send-email-kan.liang@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-08 11:59:41 +02:00
Peter Zijlstra 8b10c5e2b5 perf: Annotate inherited event ctx->mutex recursion
While fuzzing Sasha tripped over another ctx->mutex recursion lockdep
splat. Annotate this.

Reported-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-08 11:59:40 +02:00
Omar Sandoval 533445c6e5 sched/core: Fix regression in cpuset_cpu_inactive() for suspend
Commit 3c18d447b3 ("sched/core: Check for available DL bandwidth in
cpuset_cpu_inactive()"), a SCHED_DEADLINE bugfix, had a logic error that
caused a regression in setting a CPU inactive during suspend. I ran into
this when a program was failing pthread_setaffinity_np() with EINVAL after
a suspend+wake up.

A simple reproducer:

	$ ./a.out
	sched_setaffinity: Success
	$ systemctl suspend
	$ ./a.out
	sched_setaffinity: Invalid argument

... where ./a.out is:

	#define _GNU_SOURCE
	#include <errno.h>
	#include <sched.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <unistd.h>

	int main(void)
	{
		long num_cores;
		cpu_set_t cpu_set;
		int ret;

		num_cores = sysconf(_SC_NPROCESSORS_ONLN);
		CPU_ZERO(&cpu_set);
		CPU_SET(num_cores - 1, &cpu_set);
		errno = 0;
		ret = sched_setaffinity(getpid(), sizeof(cpu_set), &cpu_set);
		perror("sched_setaffinity");
		return ret ? EXIT_FAILURE : EXIT_SUCCESS;
	}

The mistake is that suspend is handled in the action ==
CPU_DOWN_PREPARE_FROZEN case of the switch statement in
cpuset_cpu_inactive().

However, the commit in question masked out CPU_TASKS_FROZEN
from the action, making this case dead.

The fix is straightforward.

Signed-off-by: Omar Sandoval <osandov@osandov.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Juri Lelli <juri.lelli@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 3c18d447b3 ("sched/core: Check for available DL bandwidth in cpuset_cpu_inactive()")
Link: http://lkml.kernel.org/r/1cb5ecb3d6543c38cce5790387f336f54ec8e2bc.1430733960.git.osandov@osandov.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-08 11:53:56 +02:00
Thomas Gleixner 0782e63bc6 sched: Handle priority boosted tasks proper in setscheduler()
Ronny reported that the following scenario is not handled correctly:

	T1 (prio = 10)
	   lock(rtmutex);

	T2 (prio = 20)
	   lock(rtmutex)
	      boost T1

	T1 (prio = 20)
	   sys_set_scheduler(prio = 30)
	   T1 prio = 30
	   ....
	   sys_set_scheduler(prio = 10)
	   T1 prio = 30

The last step is wrong as T1 should now be back at prio 20.

Commit c365c292d0 ("sched: Consider pi boosting in setscheduler()")
only handles the case where a boosted tasks tries to lower its
priority.

Fix it by taking the new effective priority into account for the
decision whether a change of the priority is required.

Reported-by: Ronny Meeus <ronny.meeus@gmail.com>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: <stable@vger.kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Mike Galbraith <umgwanakikbuti@gmail.com>
Fixes: c365c292d0 ("sched: Consider pi boosting in setscheduler()")
Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1505051806060.4225@nanos
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-08 11:53:55 +02:00
Tommi Rantala f30bf2a5ca ipvs: fix memory leak in ip_vs_ctl.c
Fix memory leak introduced in commit a0840e2e16 ("IPVS: netns,
ip_vs_ctl local vars moved to ipvs struct."):

unreferenced object 0xffff88005785b800 (size 2048):
  comm "(-localed)", pid 1434, jiffies 4294755650 (age 1421.089s)
  hex dump (first 32 bytes):
    bb 89 0b 83 ff ff ff ff b0 78 f0 4e 00 88 ff ff  .........x.N....
    04 00 00 00 a4 01 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8262ea8e>] kmemleak_alloc+0x4e/0xb0
    [<ffffffff811fba74>] __kmalloc_track_caller+0x244/0x430
    [<ffffffff811b88a0>] kmemdup+0x20/0x50
    [<ffffffff823276b7>] ip_vs_control_net_init+0x1f7/0x510
    [<ffffffff8231d630>] __ip_vs_init+0x100/0x250
    [<ffffffff822363a1>] ops_init+0x41/0x190
    [<ffffffff82236583>] setup_net+0x93/0x150
    [<ffffffff82236cc2>] copy_net_ns+0x82/0x140
    [<ffffffff810ab13d>] create_new_namespaces+0xfd/0x190
    [<ffffffff810ab49a>] unshare_nsproxy_namespaces+0x5a/0xc0
    [<ffffffff810833e3>] SyS_unshare+0x173/0x310
    [<ffffffff8265cbd7>] system_call_fastpath+0x12/0x6f
    [<ffffffffffffffff>] 0xffffffffffffffff

Fixes: a0840e2e16 ("IPVS: netns, ip_vs_ctl local vars moved to ipvs struct.")
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
2015-05-08 17:58:54 +09:00
NeilBrown bb27051f9f md/raid5: fix handling of degraded stripes in batches.
There is no need for special handling of stripe-batches when the array
is degraded.

There may be if there is a failure in the batch, but STRIPE_DEGRADED
does not imply an error.

So don't set STRIPE_BATCH_ERR in ops_run_io just because the array is
degraded.
This actually causes a bug: the STRIPE_DEGRADED flag gets cleared in
check_break_stripe_batch_list() and so the bitmap bit gets cleared
when it shouldn't.

So in check_break_stripe_batch_list(), split the batch up completely -
again STRIPE_DEGRADED isn't meaningful.

Also don't set STRIPE_BATCH_ERR when there is a write error to a
replacement device.  This simply removes the replacement device and
requires no extra handling.

Signed-off-by: NeilBrown <neilb@suse.de>
2015-05-08 18:47:57 +10:00
NeilBrown 738a273806 md/raid5: fix allocation of 'scribble' array.
As the new 'scribble' array is sized based on chunk size,
we need to make sure the size matches the largest of 'old'
and 'new' chunk sizes when the array is undergoing reshape.

We also potentially need to resize it even when not resizing
the stripe cache, as chunk size can change without changing
number of devices.

So move the 'resize' code into a separate function, and
consider old and new sizes when allocating.

Signed-off-by: NeilBrown <neilb@suse.de>
Fixes: 46d5b78562 ("raid5: use flex_array for scribble data")
2015-05-08 18:47:48 +10:00
NeilBrown 6e9eac2dce md/raid5: don't record new size if resize_stripes fails.
If any memory allocation in resize_stripes fails we will return
-ENOMEM, but in some cases we update conf->pool_size anyway.

This means that if we try again, the allocations will be assumed
to be larger than they are, and badness results.

So only update pool_size if there is no error.

This bug was introduced in 2.6.17 and the patch is suitable for
-stable.

Fixes: ad01c9e375 ("[PATCH] md: Allow stripes to be expanded in preparation for expanding an array")
Cc: stable@vger.kernel.org (v2.6.17+)
Signed-off-by: NeilBrown <neilb@suse.de>
2015-05-08 18:47:35 +10:00
NeilBrown 10d82c5f0d md/raid5: avoid reading parity blocks for full-stripe write to degraded array
When performing a reconstruct write, we need to read all blocks
that are not being over-written .. except the parity (P and Q) blocks.

The code currently reads these (as they are not being over-written!)
unnecessarily.

Signed-off-by: NeilBrown <neilb@suse.de>
Fixes: ea664c8245 ("md/raid5: need_this_block: tidy/fix last condition.")
2015-05-08 18:47:17 +10:00
NeilBrown b0c783b323 md/raid5: more incorrect BUG_ON in handle_stripe_fill.
It is not incorrect to call handle_stripe_fill() when
a batch of full-stripe writes is active.
It is, however, a BUG if fetch_block() then decides
it needs to actually fetch anything.

So move the 'BUG_ON' to where it belongs.

Signed-off-by: NeilBrown  <neilb@suse.de>
Fixes: 59fc630b8b ("RAID5: batch adjacent full stripe write")
2015-05-08 18:46:52 +10:00
NeilBrown f18c1a35f6 md/raid5: new alloc_stripe() to allocate an initialize a stripe.
The new batch_lock and batch_list fields are being initialized in
grow_one_stripe() but not in resize_stripes().  This causes a crash
on resize.

So separate the core initialization into a new function and call it
from both allocation sites.

Signed-off-by: NeilBrown <neilb@suse.de>
Fixes: 59fc630b8b ("RAID5: batch adjacent full stripe write")
2015-05-08 18:40:01 +10:00
Heinz Mauelshagen b6538fe329 md-raid0: conditional mddev->queue access to suit dm-raid
This patch is a prerequisite for dm-raid "raid0" support to allow
dm-raid to access the MD RAID0 personality doing unconditional
accesses to mddev->queue, which is NULL in case of dm-raid stacked on
top of MD.

Most of the conditional mddev->queue accesses made it to upstream but
this missing one, which prohibits md raid0 to set disk stack limits
(being done in dm core in case of md underneath dm).

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Tested-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2015-05-08 18:39:40 +10:00
Zhangfei Gao 4de3bf66c6 mmc: dw_mmc: dw_mci_get_cd check MMC_CAP_NONREMOVABLE
When non-removable is used for emmc,  MMC_CAP_NONREMOVABLE should
also be checked, otherwise detection fail since present=0

Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-05-08 08:55:47 +02:00
Zhangfei Gao 4b24472483 mmc: dw_mmc: init desc in dw_mci_idmac_init
Set 0 to des1 in 32bit case.
Otherwise the random value of des1 will be used in
dw_mci_translate_sglist: IDMAC_SET_BUFFER1_SIZE(desc, length)

Signed-off-by: Fei Wang <w.f@huawei.com>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-05-08 08:55:14 +02:00
Dan Carpenter b5eed730bd staging: rtl8712: freeing an ERR_PTR
If memdup_user() fails then "pparmbuf" is an error pointer and we can't
pass it to kfree().  I changed the "goto _r871x_mp_ioctl_hdl_exit" to a
direct return.

I changed the earlier goto to a direct return as well for consistency
and removed the "pparmbuf = NULL" initializer since it's no longer
needed.

Fixes: 45de432775 ('Staging: rtl8712: Use memdup_user() instead of copy_from_user()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-08 01:58:04 +02:00
Arnd Bergmann bb6ce8b28d staging: sm750: remove incorrect __exit annotation
The lynxfb_pci_remove function is used as the 'remove' callback
of the driver, and must not be discarded:

lynxfb_pci_remove' referenced in section `.data' of drivers/built-in.o: defined in discarded section `.exit.text' of drivers/built-in.o

This removes the extraneous annotation.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-08 01:58:04 +02:00
Michael Turquette 2ce8760469 clk/samsung fixes for 4.1
- missing CONFIG_ARCH_EXYNOS5433 -> CONFIG_ARCH_EXYNOS substitution
    to actually enable clk-exynos5433.c compilation,
  - fixes of exynos5433 clk tree definitions: register offsetts, parent
    clocks, PLL coefficients,
  - fix for exynos5420 system sleep regression introduced in 3.19.
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Merge tag 'clk-samsung-fixes-4.1-2' of git://linuxtv.org/snawrocki/samsung into clk-fixes

clk/samsung fixes for 4.1

 - missing CONFIG_ARCH_EXYNOS5433 -> CONFIG_ARCH_EXYNOS substitution
   to actually enable clk-exynos5433.c compilation,
 - fixes of exynos5433 clk tree definitions: register offsetts, parent
   clocks, PLL coefficients,
 - fix for exynos5420 system sleep regression introduced in 3.19.
2015-05-07 16:46:26 -07:00
Linus Torvalds 3e0283a53f Power management and ACPI fixes for v4.1-rc3
- Fix for a PCI resources management regression introduced during
    the 4.0 cycle and related to the handling of ACPI resources'
    Producer/Consumer flags that turn out to be useless (Jiang Liu).
 
  - Fix for a MacBook regression related to the Smart Battery Subsystem
    (SBS) driver causing various problems (stalls on boot, failure to
    detect or report battery) to happen and introduced during the 3.18
    cycle (Chris Bainbridge).
 
  - Fix for an ACPI/PNP device enumeration regression introduced during
    the 3.16 cycle caused by failing to include two PNP device IDs into
    the list of IDs that PNP device objects need to be created for
    (Witold Szczeponik).
 
  - Fixes for two minor mistakes in the ACPI GPIO properties
    documentation (Antonio Ospite, Rafael J Wysocki).
 
 /
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Merge tag 'pm+acpi-4.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI fixes from Rafael Wysocki:
 "These include three regression fixes (PCI resources management,
  ACPI/PNP device enumeration, ACPI SBS on MacBook) and two ACPI
  documentation fixes related to GPIO.

  Specifics:

   - Fix for a PCI resources management regression introduced during the
     4.0 cycle and related to the handling of ACPI resources'
     Producer/Consumer flags that turn out to be useless (Jiang Liu)

   - Fix for a MacBook regression related to the Smart Battery Subsystem
     (SBS) driver causing various problems (stalls on boot, failure to
     detect or report battery) to happen and introduced during the 3.18
     cycle (Chris Bainbridge)

   - Fix for an ACPI/PNP device enumeration regression introduced during
     the 3.16 cycle caused by failing to include two PNP device IDs into
     the list of IDs that PNP device objects need to be created for
     (Witold Szczeponik)

   - Fixes for two minor mistakes in the ACPI GPIO properties
     documentation (Antonio Ospite, Rafael J Wysocki)"

* tag 'pm+acpi-4.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / PNP: add two IDs to list for PNPACPI device enumeration
  ACPI / documentation: Fix ambiguity in the GPIO properties document
  ACPI / documentation: fix a sentence about GPIO resources
  ACPI / SBS: Add 5 us delay to fix SBS hangs on MacBook
  x86/PCI/ACPI: Make all resources except [io 0xcf8-0xcff] available on PCI bus
2015-05-07 15:58:00 -07:00
Gabriele Mazzotta e5f1efb9ae iio: kfifo: Set update_needed to false only if a buffer was allocated
Check whether the allocation of a new kfifo buffer failed or not before
setting the update_needed flag to false. This will make
iio_request_update_kfifo() try to allocate a new buffer the next time a
buffer update is requested.

Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-07 23:36:58 +01:00
Rafael J. Wysocki 9a5d9315e4 Merge branches 'acpi-resources', 'acpi-battery', 'acpi-doc' and 'acpi-pnp'
* acpi-resources:
  x86/PCI/ACPI: Make all resources except [io 0xcf8-0xcff] available on PCI bus

* acpi-battery:
  ACPI / SBS: Add 5 us delay to fix SBS hangs on MacBook

* acpi-doc:
  ACPI / documentation: Fix ambiguity in the GPIO properties document
  ACPI / documentation: fix a sentence about GPIO resources

* acpi-pnp:
  ACPI / PNP: add two IDs to list for PNPACPI device enumeration
2015-05-07 21:24:34 +02:00
Rafael J. Wysocki b9a5e5e18f ACPI / init: Fix the ordering of acpi_reserve_resources()
Since acpi_reserve_resources() is defined as a device_initcall(),
there's no guarantee that it will be executed in the right order
with respect to the rest of the ACPI initialization code.  On some
systems this leads to breakage if, for example, the address range
that should be reserved for the ACPI fixed registers is given to
the PCI host bridge instead if the race is won by the wrong code
path.

Fix this by turning acpi_reserve_resources() into a void function
and calling it directly from within the ACPI initialization sequence.

Reported-and-tested-by: George McCollister <george.mccollister@gmail.com>
Link: http://marc.info/?t=143092384600002&r=1&w=2
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-05-07 21:19:39 +02:00
Linus Torvalds 68c2f356c9 Merge tag 'for-f2fs-4.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs fixes from Jaegeuk Kim:
 "Fix a performance regression and a bug"

* tag 'for-f2fs-4.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
  f2fs: fix wrong error hanlder in f2fs_follow_link
  Revert "f2fs: enhance multi-threads performance"
2015-05-07 11:18:34 -07:00
Fabio Estevam dc0e3db4ec ARM: multi_v7_defconfig: Select more FSL SoCs
Select IMX50, IMX6SX and LS1021A SoC support.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-05-07 18:31:00 +02:00
Nicolas Ferre d68b35f845 MAINTAINERS: replace an AT91 maintainer
As some help is needed from an active maintainer, replace Andrew Victor
by Alexandre Belloni in the ARM/Atmel MAINTAINERS' entry (aka AT91).
Add an entry to the CREDITS file.

Thanks Andrew for the great role you played during the early days of this
product family.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-05-07 18:29:51 +02:00
Mark Salter 454be2af5b drivers: CCI: fix used_mask init in validate_group()
Currently in validate_group(), there is a static initializer
for fake_pmu.used_mask which is based on CPU_BITS_NONE but
the used_mask array size is based on CCI_PMU_MAX_HW_EVENTS.
CCI_PMU_MAX_HW_EVENTS is not based on NR_CPUS, so CPU_BITS_NONE
is not correct and will cause a build failure if NR_CPUS
is set high enough to make CPU_BITS_NONE larger than used_mask.

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-05-07 18:29:18 +02:00
Arnd Bergmann bd1a6e7b47 This fixes an MMC/SD configuration issue present for some time
in the Ux500 DT but triggered by proper error handling in v4.1-rc1.
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Merge tag 'stericsson-fixes-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into fixes

Merge "Ux500 fixes" from Linus Walleij:

This fixes an MMC/SD configuration issue present for some time
in the Ux500 DT but triggered by proper error handling in v4.1-rc1.

* tag 'stericsson-fixes-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
  ARM: ux500: Enable GPIO regulator for SD-card for snowball
  ARM: ux500: Enable GPIO regulator for SD-card for HREF boards
  ARM: ux500: Move GPIO regulator for SD-card into board DTSs
2015-05-07 18:28:04 +02:00
Arnd Bergmann 1e5f9ed00d Renesas ARM Based SoC Fixes for v4.1
* Fix adv7511 IRQ sensing on koelsch board
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Merge tag 'renesas-fixes-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Merge "Renesas ARM Based SoC Fixes for v4.1" from Simon Horman:

* Fix adv7511 IRQ sensing on koelsch board

* tag 'renesas-fixes-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: koelsch: Fix adv7511 IRQ sensing
2015-05-07 18:26:48 +02:00
Arnd Bergmann 443318e0b7 Fixes for omaps, mostly a fix for power power consumption
creeping up during idle, and two l3-noc device fixes:
 
 - Fix power consumption creeping up with I2C4 staying on
 - Fix n900 microphone bias voltages
 - Fix dra7 l3-noc for host clock
 - Fix omap5 l3-noc id address decoding
 
 The rest are all just minor dts fixes:
 
 - Fix changed EXTCON_USB_GPIO_USB in defconfig
 - Fix missing isp and iva #iommu-cells property
 - Various beagle x15 dts fixes for pre-production changes
 - Fix am437x-sk display dts entries
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Merge tag 'omap-for-v4.1/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "omap fixes against v4.1-rc1" from Tony Lindgren:

Fixes for omaps, mostly a fix for power power consumption
creeping up during idle, and two l3-noc device fixes:

- Fix power consumption creeping up with I2C4 staying on
- Fix n900 microphone bias voltages
- Fix dra7 l3-noc for host clock
- Fix omap5 l3-noc id address decoding

The rest are all just minor dts fixes:

- Fix changed EXTCON_USB_GPIO_USB in defconfig
- Fix missing isp and iva #iommu-cells property
- Various beagle x15 dts fixes for pre-production changes
- Fix am437x-sk display dts entries

* tag 'omap-for-v4.1/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: omap_l3_noc: Fix master id address decoding for OMAP5
  bus: omap_l3_noc: Fix offset for DRA7 CLK1_HOST_CLK1_2 instance
  ARM: dts: dra7: Fix efuse register size for ABB
  ARM: dts: am57xx-beagle-x15: Switch GPIO fan number
  ARM: dts: am57xx-beagle-x15: Switch UART mux pins
  ARM: dts: am437x-sk: reduce col-scan-delay-us
  ARM: dts: am437x-sk: fix for new newhaven display module revision
  ARM: dts: am57xx-beagle-x15: Fix RTC aliases
  ARM: dts: am57xx-beagle-x15: Fix IRQ type for mcp7941x
  ARM: dts: omap3: Add #iommu-cells to isp and iva iommu
  ARM: omap2plus_defconfig: Enable EXTCON_USB_GPIO
  ARM: dts: OMAP3-N900: Add microphone bias voltages
  ARM: OMAP2+: Fix omap off idle power consumption creeping up
2015-05-07 18:25:38 +02:00
Arnd Bergmann d6ad446dd7 Merge tag 'arm-soc/for-4.1/maintainers' of http://github.com/broadcom/stblinux into fixes
Merge "MAINTAINERS update for Broadcom SoCs for 4.1 #2" from Florian Fainelli:

This pull request contains 3 changes to the MAINTAINERS file for Broadcom SoCs:

- add Ray and Scott for mach-bcm
- remove Christian for mach-bcm
- remove Marc for brcmstb

* tag 'arm-soc/for-4.1/maintainers' of http://github.com/broadcom/stblinux:
  MAINTAINERS: Update brcmstb entry
  MAINTAINERS: Remove Christian Daudt for mach-bcm
  MAINTAINERS: Update mach-bcm maintainers list
2015-05-07 18:24:32 +02:00
Arnd Bergmann 654758ae09 mvebu fix for 4.1
Disable the unused internal RTC in the dts of the OpenBlock AX3
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Merge tag 'mvebu-fixes-4.1' of git://git.infradead.org/linux-mvebu into fixes

Pull "mvebu fix for 4.1" from Gregory CLEMENT:

Disable the unused internal RTC in the dts of the OpenBlock AX3

* tag 'mvebu-fixes-4.1' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: armada-xp-openblocks-ax3-4: Disable internal RTC
2015-05-07 18:23:49 +02:00
Arnd Bergmann 1be518bd0b ARM: pxa: fixes for v4.1-rc2
These fixes reenable the lubbock(pxa25x) and mainstone(pxa27x)
 platforms, which were broken since the gpio handling was
 converted to a driver, and the interrupt ordering broke the
 external interrupts of these systems.
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Merge tag 'fixes-for-v4.1-rc2' of https://github.com/rjarzmik/linux into fixes

Merged "ARM: pxa: fixes for v4.1-rc2" from Robert Jarzmik:

These fixes reenable the lubbock(pxa25x) and mainstone(pxa27x)
platforms, which were broken since the gpio handling was
converted to a driver, and the interrupt ordering broke the
external interrupts of these systems.

* tag 'fixes-for-v4.1-rc2' of https://github.com/rjarzmik/linux:
  ARM: pxa: lubbock: use new pxa_cplds driver
  ARM: pxa: mainstone: use new pxa_cplds driver
  ARM: pxa: pxa_cplds: add lubbock and mainstone IO
2015-05-07 18:23:00 +02:00
Arnd Bergmann c92b83a81a The i.MX fixes for 4.1:
- A couple of imx23-olinuxino device tree fixes regarding to LED GPIO
    polarity and USB dr_mode setting
  - One i.MX28 device tree fix on AUART4 TX-DMA interrupt name
  - Add missing pwm-cells to PWM4 for i.MX25 device tree
  - Fix imx6q-phytec device tree to get correct USB VBUS control
  - Drop invalid pinctrl-assert-gpios property from imx6qdl-sabreauto
    device tree, which was sneaked in from vendor device tree
  - One fix on Wolfram's broken email address
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Merge tag 'imx-fixes-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

Pull "The i.MX fixes for 4.1" from Shawn Guo:

 - A couple of imx23-olinuxino device tree fixes regarding to LED GPIO
   polarity and USB dr_mode setting
 - One i.MX28 device tree fix on AUART4 TX-DMA interrupt name
 - Add missing pwm-cells to PWM4 for i.MX25 device tree
 - Fix imx6q-phytec device tree to get correct USB VBUS control
 - Drop invalid pinctrl-assert-gpios property from imx6qdl-sabreauto
   device tree, which was sneaked in from vendor device tree
 - One fix on Wolfram's broken email address

* tag 'imx-fixes-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx6qdl-sabreauto: remove pinctrl-assert-gpios
  ARM: dts: imx28: Fix AUART4 TX-DMA interrupt name
  ARM: dts: imx25: Add #pwm-cells to pwm4
  ARM: dts: imx6: phyFLEX: USB VBUS control is active-high
  ARM: mach-imx: devices: platform-sdhci-esdhc-imx: fix broken email address
  ARM: dts: imx23-olinuxino: Fix dr_mode of usb0
  ARM: dts: imx23-olinuxino: Fix polarity of LED GPIO
2015-05-07 18:21:57 +02:00
Arnd Bergmann d6bcc8069b Two fixes from Chris Zhong, fixing some suspend oddities.
And I've given up on the timer7 issue. While I initially thought
 devices would either have both the grave mmu issue requiring a uboot
 update and the timer7 issue or none, it looks like in all units in the
 field the mmu issue got fixed while the timer7 issue stayed on.
 So instead of making everybody wanting to use mainline jump through a
 hoop just make sure timer7 is on on boot before we init the arch-timer.
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Merge tag 'v4.1-rockchip-socfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into fixes

Merge "ARM: rockchip: some soc-level fixes for 4.1" from Heiko Stübner:

Two fixes from Chris Zhong, fixing some suspend oddities.
And I've given up on the timer7 issue. While I initially thought
devices would either have both the grave mmu issue requiring a uboot
update and the timer7 issue or none, it looks like in all units in the
field the mmu issue got fixed while the timer7 issue stayed on.
So instead of making everybody wanting to use mainline jump through a
hoop just make sure timer7 is on on boot before we init the arch-timer.

* tag 'v4.1-rockchip-socfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  rockchip: make sure timer7 is enabled on rk3288 platforms
  ARM: rockchip: fix undefined instruction of reset_ctrl_regs
  ARM: rockchip: disable dapswjdp during suspend
2015-05-07 18:19:27 +02:00
Linus Torvalds fbb7b92f16 Pin control fixes for the v4.1 series:
- Fix a real nasty legacy bug that has screwed up the protection
   of adding pinctrl maps dynamically. Normally this didn't happen
   so much but Dough Anderson ran into it and fixed it, kudos!
 
 - Minor driver fixes for Qualcomm spmi, mediatek and Marvell
   drivers.
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Merge tag 'pinctrl-v4.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Here is a smallish set of pin control fixes for the v4.1 cycle,
  collected the last two weeks:

   - fix a real nasty legacy bug that has screwed up the protection of
     adding pinctrl maps dynamically.  Normally this didn't happen so
     much but Dough Anderson ran into it and fixed it, kudos!

  - minor driver fixes for Qualcomm spmi, mediatek and Marvell drivers"

* tag 'pinctrl-v4.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: Don't just pretend to protect pinctrl_maps, do it for real
  pinctrl: mediatek: mtk-common: initialize unmask
  pinctrl: qcom-spmi-mpp: Fix input value report
  pinctrl: qcom-spmi: Fix pin direction configuration
  pinctrl: mvebu: Fix mapping of pin 63 (gpo -> gpio)
2015-05-07 08:27:38 -07:00
Linus Torvalds 7bbcd1b86d Fix some undesirable behavior with the vfio device request interface:
- Increase verbosity of device request channel (Alex Williamson)
 
 - Fix runaway interruptible timeout (Alex Williamson)
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Merge tag 'vfio-v4.1-rc3' of git://github.com/awilliam/linux-vfio

Pull vfio fixes from Alex Williamson:
 "Fix some undesirable behavior with the vfio device request interface:

   - increase verbosity of device request channel (Alex Williamson)

   - fix runaway interruptible timeout (Alex Williamson)"

* tag 'vfio-v4.1-rc3' of git://github.com/awilliam/linux-vfio:
  vfio: Fix runaway interruptible timeout
  vfio-pci: Log device requests more verbosely
2015-05-07 08:18:01 -07:00
Christian König 12e49feadf drm/radeon: stop trying to suspend UVD sessions
Saving the current UVD state on suspend and restoring it on resume
just doesn't work reliable. Just close cleanup all sessions on suspend.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-07 11:00:18 -04:00
Christian König d52cdfa4a0 drm/radeon: more strictly validate the UVD codec
MPEG 2/4 are only supported since UVD3.

Signed-off-by: Christian König <christian.koenig@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-07 11:00:17 -04:00
Christian König a1b403da70 drm/radeon: make UVD handle checking more strict
Invalid messages can crash the hw otherwise.

Signed-off-by: Christian König <christian.koenig@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-07 11:00:16 -04:00
Christian König 29c63fe22a drm/radeon: make VCE handle check more strict
Invalid handles can crash the hw.

Signed-off-by: Christian König <christian.koenig@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-07 11:00:16 -04:00
Christian König 247c405098 drm/radeon: fix userptr lockup
We shouldn't try to reserve and wait for a BO that isn't bound. Otherwise
we can run into a deadlock if we have a fault during binding the BO.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-07 11:00:15 -04:00
monk.liu db12973cd5 drm/radeon: fix userptr BO unpin bug v3
Fixing a memory leak with userptrs.

v2: clean up the loop, use an iterator instead
v3: remove unused variable

Signed-off-by: monk.liu <monk.liu@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-07 11:00:15 -04:00
Xihan Zhang 79b066bd76 drm/amdkfd: Initialize sdma vm when creating sdma queue
This patch fixes a bug where sdma vm wasn't initialized when
an sdma queue was created in HWS mode.

This caused GPUVM faults to appear on dmesg and it is one of the
causes that SDMA queues are not working.

Signed-off-by: Xihan Zhang <xihan.zhang@amd.com>
Reviewed-by: Ben Goz <ben.goz@amd.comt>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-07 17:38:06 +03:00