Commit Graph

70341 Commits

Author SHA1 Message Date
Will Drewry
09d314425f vsyscall_64: add missing ifdef CONFIG_SECCOMP
vsyscall_seccomp introduced a dependency on __secure_computing.  On
configurations with CONFIG_SECCOMP disabled, compilation will fail.

Reported-by: feng xiangjun <fengxj325@gmail.com>
Signed-off-by: Will Drewry <wad@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-14 12:01:36 -07:00
Linus Torvalds
e60d7458cb ARM: Samsung SoC fixes for 3.5-rc
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM Samsung SoC fixes from Arnd Bergmann.

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: S3C24XX: Correct CAMIF interrupt definitions
  ARM: S3C24XX: Correct AC97 clock control bit for S3C2440
  ARM: SAMSUNG: fix race in s3c_adc_start for ADC
  ARM: SAMSUNG: Update default rate for xusbxti clock
  ARM: EXYNOS: register devices in 'need_restore' state for pm_domains
  ARM: EXYNOS: read initial state of power domain from hw registers
2012-07-14 11:50:36 -07:00
Linus Torvalds
ab93eb8216 Merge branches 'core-urgent-for-linus', 'perf-urgent-for-linus' and 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU, perf, and scheduler fixes from Ingo Molnar.

The RCU fix is a revert for an optimization that could cause deadlocks.

One of the scheduler commits (164c33c6ad "sched: Fix fork() error path
to not crash") is correct but not complete (some architectures like Tile
are not covered yet) - the resulting additional fixes are still WIP and
Ingo did not want to delay these pending fixes.  See this thread on
lkml:

  [PATCH] fork: fix error handling in dup_task()

The perf fixes are just trivial oneliners.

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "rcu: Move PREEMPT_RCU preemption to switch_to() invocation"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf kvm: Fix segfault with report and mixed guestmount use
  perf kvm: Fix regression with guest machine creation
  perf script: Fix format regression due to libtraceevent merge
  ring-buffer: Fix accounting of entries when removing pages
  ring-buffer: Fix crash due to uninitialized new_pages list head

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  MAINTAINERS/sched: Update scheduler file pattern
  sched/nohz: Rewrite and fix load-avg computation -- again
  sched: Fix fork() error path to not crash
2012-07-14 11:16:24 -07:00
Will Drewry
5651721ede x86/vsyscall: allow seccomp filter in vsyscall=emulate
If a seccomp filter program is installed, older static binaries and
distributions with older libc implementations (glibc 2.13 and earlier)
that rely on vsyscall use will be terminated regardless of the filter
program policy when executing time, gettimeofday, or getcpu.  This is
only the case when vsyscall emulation is in use (vsyscall=emulate is the
default).

This patch emulates system call entry inside a vsyscall=emulate by
populating regs->ax and regs->orig_ax with the system call number prior
to calling into seccomp such that all seccomp-dependencies function
normally.  Additionally, system call return behavior is emulated in line
with other vsyscall entrypoints for the trace/trap cases.

[ v2: fixed ip and sp on SECCOMP_RET_TRAP/TRACE (thanks to luto@mit.edu) ]
Reported-and-tested-by: Owen Kibel <qmewlo@gmail.com>
Signed-off-by: Will Drewry <wad@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-13 14:25:55 -07:00
Linus Torvalds
68394bfbe5 SuperH fixes for 3.5-rc7
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Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH fixes from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
  SH: Convert out[bwl] macros to inline functions
  sh: Fix up se7721 GPIOLIB=y build warnings.
2012-07-13 09:04:00 -07:00
Linus Torvalds
e7654c1e49 Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull a couple of KVM fixes from Avi Kivity:
 "One is an adjustment for an irq layer change that affected device
  assignment, the other a one-liner ppc fix."

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  powerpc/kvm: Fix "PR" KVM implementation of H_CEDE
  KVM: Fix device assignment threaded irq handler
2012-07-13 08:42:32 -07:00
Sylwester Nawrocki
705c75e3a1 ARM: S3C24XX: Correct CAMIF interrupt definitions
Properly define the CAMIF interrupt resources. This device have two
interrupts - corresponding to the "codec" and "preview" data paths.
IRQ_CAM is handled internally by the architecture and demultiplexed
to IRQ_S3C2440_CAM_C and IRQ_S3C2440_CAM_P - these interrupts only
should be handled in the driver.

Signed-off-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-13 17:48:56 +09:00
Sylwester Nawrocki
bb14880247 ARM: S3C24XX: Correct AC97 clock control bit for S3C2440
Use correct gate control bit for AC97 clock which is
S3C2440_CLKCON_AC97, not S3C2440_CLKCON_CAMERA.

Signed-off-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-13 17:48:56 +09:00
Todd Poynor
8265981bb4 ARM: SAMSUNG: fix race in s3c_adc_start for ADC
Checking for adc->ts_pend already claimed should be done with the
lock held.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-13 15:35:04 +09:00
Tushar Behera
bdd3cc26ba ARM: SAMSUNG: Update default rate for xusbxti clock
The rate of xusbxti clock is set in individual machine files.
The default value should be defined at the clock definition
and individual machine files should modify it if required.

Division by zero in kernel.
[<c0011849>] (unwind_backtrace+0x1/0x9c) from [<c022c663>] (Ldiv0+0x9/0x12)
[<c022c663>] (Ldiv0+0x9/0x12) from [<c001a3c3>] (s3c_setrate_clksrc+0x33/0x78)
[<c001a3c3>] (s3c_setrate_clksrc+0x33/0x78) from [<c0019e67>] (clk_set_rate+0x2f/0x78)

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-13 15:34:30 +09:00
Marek Szyprowski
ebc35c7262 ARM: EXYNOS: register devices in 'need_restore' state for pm_domains
Commit ca1d72f033 ('PM / Domains: Make it possible to add devices to
inactive domains') introduced possibility to add devices to inactive
power domains and added pm_genpd_dev_need_restore() function which lets
platform core to notify power domain core that the specified device must
be restored (with its runtime_resume() callback) before first use.

This patch adds the pm_genpd_dev_need_restore() call what brings back
the suspend/resume behaviour for the client devices known from the
previous power domain driver (removed by commit 91cfbd4ee0 - 'ARM:
EXYNOS: Hook up power domains to generic power domain infrastructure').
Client device drivers relay on that suspend/resume behaviour, thus this
patch fixes runtime pm operation for client devices.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-12 17:29:55 +09:00
Marek Szyprowski
76eb5567af ARM: EXYNOS: read initial state of power domain from hw registers
Some bootloaders disable unused power domains to reduce power
consuption. Power domain driver can easily read the actual state from
the hardware registers instead of assuming that their initial state is
always 'on'.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-12 17:29:54 +09:00
Corey Minyard
44033109e9 SH: Convert out[bwl] macros to inline functions
The macros just called BUG(), but that results in unused variable
warnings all over the place, like in the IPMI driver.  The build
regression emails were annoying me, so here's the fix.  I have
not even compile tested this, but it's rather obvious.

[ port type mangled to unsigned long ]

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-12 13:12:13 +09:00
Linus Torvalds
00c3e276c5 Merge branch 'akpm' (Andrew's patch-bomb)
Merge random patches from Andrew Morton.

* Merge emailed patches from Andrew Morton <akpm@linux-foundation.org>: (32 commits)
  memblock: free allocated memblock_reserved_regions later
  mm: sparse: fix usemap allocation above node descriptor section
  mm: sparse: fix section usemap placement calculation
  xtensa: fix incorrect memset
  shmem: cleanup shmem_add_to_page_cache
  shmem: fix negative rss in memcg memory.stat
  tmpfs: revert SEEK_DATA and SEEK_HOLE
  drivers/rtc/rtc-twl.c: fix threaded IRQ to use IRQF_ONESHOT
  fat: fix non-atomic NFS i_pos read
  MAINTAINERS: add OMAP CPUfreq driver to OMAP Power Management section
  sgi-xp: nested calls to spin_lock_irqsave()
  fs: ramfs: file-nommu: add SetPageUptodate()
  drivers/rtc/rtc-mxc.c: fix irq enabled interrupts warning
  mm/memory_hotplug.c: release memory resources if hotadd_new_pgdat() fails
  h8300/uaccess: add mising __clear_user()
  h8300/uaccess: remove assignment to __gu_val in unhandled case of get_user()
  h8300/time: add missing #include <asm/irq_regs.h>
  h8300/signal: fix typo "statis"
  h8300/pgtable: add missing #include <asm-generic/pgtable.h>
  drivers/rtc/rtc-ab8500.c: ensure correct probing of the AB8500 RTC when Device Tree is enabled
  ...
2012-07-11 16:06:54 -07:00
Alan Cox
688bb4158f xtensa: fix incorrect memset
Addresses: https://bugzilla.kernel.org/show_bug.cgi?id=43871

Reported-by: <dcb314@hotmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 16:04:49 -07:00
Geert Uytterhoeven
213ab3f9fc h8300/uaccess: add mising __clear_user()
Fix the build error:

  include/linux/regset.h: In function 'user_regset_copyout_zero':
  include/linux/regset.h:289:3: error: implicit declaration of function '__clear_user' [-Werror=implicit-function-declaration]

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 16:04:46 -07:00
Geert Uytterhoeven
e048acebc4 h8300/uaccess: remove assignment to __gu_val in unhandled case of get_user()
__gu_val is const if the passed ptr is const, giving:

  include/linux/pagemap.h: In function 'fault_in_pages_readable':
  include/linux/pagemap.h:442:2: error: assignment of read-only variable '__gu_val'
  include/linux/pagemap.h:448:4: error: assignment of read-only variable '__gu_val'
  include/linux/pagemap.h: In function 'fault_in_multipages_readable':
  include/linux/pagemap.h:499:3: error: assignment of read-only variable '__gu_val'
  include/linux/pagemap.h:508:3: error: assignment of read-only variable '__gu_val'
  make[4]: *** [init/main.o] Error 1

As we don't care about the actual value of __gu_val in the unhandled
case (it will cause a link error anyway), just remove the assignment.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 16:04:45 -07:00
Geert Uytterhoeven
487c719c00 h8300/time: add missing #include <asm/irq_regs.h>
Fix the build error:

  arch/h8300/kernel/time.c: In function 'h8300_timer_tick':
  arch/h8300/kernel/time.c:39:2: error: implicit declaration of function 'get_irq_regs' [-Werror=implicit-function-declaration]
  arch/h8300/kernel/time.c:39:42: error: invalid type argument of '->' (have 'int')

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 16:04:45 -07:00
Geert Uytterhoeven
8782171e58 h8300/signal: fix typo "statis"
The keyword is "static", not "statis":

  arch/h8300/kernel/signal.c:455:8: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void'
  arch/h8300/kernel/signal.c: In function 'do_notify_resume':
  arch/h8300/kernel/signal.c:511:3: error: implicit declaration of function 'do_signal' [-Werror=implicit-function-declaration]
  arch/h8300/kernel/signal.c: At top level:
  arch/h8300/kernel/signal.c:414:1: warning: 'handle_signal' defined but not used [-Wunused-function]

Introduced in commit 7ae4e32a65 ("h8300: switch to saved_sigmask-based
sigsuspend/rt_sigsuspend")

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 16:04:45 -07:00
Geert Uytterhoeven
9adec610b4 h8300/pgtable: add missing #include <asm-generic/pgtable.h>
Fix the h8300 build error:

  kernel/sched/core.c: In function 'context_switch':
  kernel/sched/core.c:2061:2: error: implicit declaration of function 'arch_start_context_switch' [-Werror=implicit-function-declaration]

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 16:04:44 -07:00
Geert Uytterhoeven
6b4fa63a9e mn10300: use "#elif defined(CONFIG_*)" instead of "#elif CONFIG_*"
Fix the warnings:

  arch/mn10300/kernel/irq.c:173:7: warning: "CONFIG_MN10300_TTYSM1_TIMER9" is not defined [-Wundef]
  arch/mn10300/kernel/irq.c:175:7: warning: "CONFIG_MN10300_TTYSM1_TIMER3" is not defined [-Wundef]

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 16:04:43 -07:00
Geert Uytterhoeven
77cb621c87 mn10300: mm/dma-alloc.c needs <linux/export.h>
Fix the warnings:

  arch/mn10300/mm/dma-alloc.c: At top level:
  arch/mn10300/mm/dma-alloc.c:63:1: warning: data definition has no type or storage class [enabled by default]
  arch/mn10300/mm/dma-alloc.c:63:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Wimplicit-int]
  arch/mn10300/mm/dma-alloc.c:63:1: warning: parameter names (without types) in function declaration [enabled by default]
  arch/mn10300/mm/dma-alloc.c:75:1: warning: data definition has no type or storage class [enabled by default]
  arch/mn10300/mm/dma-alloc.c:75:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Wimplicit-int]
  arch/mn10300/mm/dma-alloc.c:75:1: warning: parameter names (without types) in function declaration [enabled by default]

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 16:04:42 -07:00
Geert Uytterhoeven
cea7c5879f mn10300: kernel/traps.c needs <linux/export.h>
Fix the warning:

  arch/mn10300/kernel/traps.c:304:1: warning: data definition has no type or storage class [enabled by default]
  arch/mn10300/kernel/traps.c:304:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Wimplicit-int]
  arch/mn10300/kernel/traps.c:304:1: warning: parameter names (without types) in function declaration [enabled by default]

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 16:04:42 -07:00
Geert Uytterhoeven
7a63091288 mn10300: kernel/internal.h needs <linux/irqreturn.h>
Fix the nm10300 build failure:

  In file included from arch/mn10300/kernel/csrc-mn10300.c:14:0:
  arch/mn10300/kernel/internal.h:42:1: error: unknown type name 'irqreturn_t'

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 16:04:42 -07:00
Geert Uytterhoeven
1c20c3de6c mn10300: remove duplicate definition of PTRACE_O_TRACESYSGOOD
Fix the warning:

  include/linux/ptrace.h:66:0: warning: "PTRACE_O_TRACESYSGOOD" redefined [enabled by default]
  arch/mn10300/include/asm/ptrace.h:85:0: note: this is the location of the previous definition

We already have it in <linux/ptrace.h>, so remove it from <asm/ptrace.h>

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 16:04:41 -07:00
Geert Uytterhoeven
325c117000 mn10300: move setup_jiffies_interrupt() to cevt-mn10300.c
Move the static inline function setup_jiffies_interrupt() from
<asm/timex.h> to arch/mn10300/kernel/cevt-mn10300.c, which is its only
callsite.

This allows to remove the inclusion of <asm/hardirq.h> and <linux/irq.h>
from <asm/timex.h> and <unit/timex.h>, fixing include hell like:

  include/linux/jiffies.h:260:31: warning: "CLOCK_TICK_RATE" is not defined [-Wundef]
  include/linux/jiffies.h:260:31: warning: "CLOCK_TICK_RATE" is not defined [-Wundef]
  include/linux/jiffies.h:46:42: error: division by zero in #if
  ...
  make[4]: *** [arch/mn10300/kernel/asm-offsets.s] Error 1

and (after a quick hack for the above by defining CLOCK_TICK_RATE in
<linux/jiffies.h>):

  In file included from include/linux/notifier.h:15:0,
                 from include/linux/memory_hotplug.h:6,
                 from include/linux/mmzone.h:718,
                 from include/linux/gfp.h:4,
                 from include/linux/irq.h:20,
                 from arch/mn10300/unit-asb2303/include/unit/timex.h:15,
                 from arch/mn10300/include/asm/timex.h:15,
                 from include/linux/timex.h:174,
                 from include/linux/jiffies.h:8,
                 from include/linux/ktime.h:25,
                 from include/linux/timer.h:5,
                 from include/linux/workqueue.h:8,
  include/linux/srcu.h:55:22: error: field 'work' has incomplete type

As a consequence, we do need a few more inclusions of <asm/irq.h>, namely
in arch/mn10300/unit-asb2303/smc91111.c and
arch/mn10300/unit-asb2305/unit-init.c.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 16:04:41 -07:00
Linus Torvalds
605cd83694 Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull arch/tile fix from Chris Metcalf:
 "This is a single change to fix backtracing in big-endian mode."

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile: big-endian: properly bswap instruction bundles when backtracing
2012-07-11 13:01:57 -07:00
Linus Torvalds
887eafd29b ARM: SoC fixes for 3.5-rc
* multiple omap2+ bug fixes
 * a regression on ux500 dt support
 * a build failure on shmobile
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 -  multiple omap2+ bug fixes
 - a regression on ux500 dt support
 - a build failure on shmobile

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: OMAP2+: omap2plus_defconfig: EHCI driver is not stable, disable it
  ARM: shmobile: fix platsmp.c build when ARCH_SH73A0=n
  ARM: ux500: Over-ride the DT device naming scheme for pinctrl
  ARM: ux500: Fix build errors/warnings when MACH_UX500_DT is not set
  of: address: Don't fail a lookup just because a node has no reg property
  ARM: OMAP2+: hwmod code/clockdomain data: fix 32K sync timer
2012-07-11 12:44:25 -07:00
David Howells
43224b739b MN10300: Fix a missing semicolon
The declaration of arch_release_thread_info() needs a semicolon.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 11:15:24 -07:00
Avi Kivity
37e41afa97 Merge branch 'for-upstream-master' of git://github.com/agraf/linux-2.6
PPC fix from Alex Graf: "It contains an important bug fix which
can lead to guest freezes when using PAPR guests with PR KVM."

* 'for-upstream-master' of git://github.com/agraf/linux-2.6:
  powerpc/kvm: Fix "PR" KVM implementation of H_CEDE

Signed-off-by: Avi Kivity <avi@redhat.com>
2012-07-11 18:49:20 +03:00
Benjamin Herrenschmidt
1dee7a3dc8 powerpc/kvm: Fix "PR" KVM implementation of H_CEDE
H_CEDE should enable the vcpu's MSR:EE bit. It does on "HV" KVM (it's
burried in the assembly code though) and as far as I can tell, qemu
does it as well.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-07-11 17:36:38 +02:00
Linus Torvalds
055c9fa887 GPIO fixes for v3.5:
- Invalid context restore on bank 0 for OMAP driver in
   runtime suspend/resume cycle
 - Check for NULL platform data in sta-2x11 driver
 - Constrain selection of the V1 MSM GPIO driver to applicable
   platforms (Kconfig issue)
 - Make sure the correct output value is set in the wm8994 driver
 - Export devm_gpio_request_one() so it can be used in modules.
   Apparently some in-kernel modules can be configured to use this
   leading to breakage.
 - Check that the GPIO is valid in the lantiq driver
 - Fix the flag bits introduced for v3.5, so they don't overlap
 - Fix a device tree intialization bug for imx21-compatible devices
 - Carry over the OF node to the TPS65910 GPIO chip struct
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Merge tag 'fixes-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "Yes, this is a *LATE* GPIO pull request with fixes for v3.5.

  Grant moved across the planet and accidentally fell off the grid, so
  he asked me to take over the GPIO merges for a while 10 days ago.

  Since then I went over the archives and collected this pile of fixes,
  and pulled two of them from the TI maintainer Kevin Hilman.  Then
  waited for them to at least hit linux-next once or twice."

GPIO fixes for v3.5:
 - Invalid context restore on bank 0 for OMAP driver in runtime
   suspend/resume cycle
 - Check for NULL platform data in sta-2x11 driver
 - Constrain selection of the V1 MSM GPIO driver to applicable platforms
   (Kconfig issue)
 - Make sure the correct output value is set in the wm8994 driver
 - Export devm_gpio_request_one() so it can be used in modules.
   Apparently some in-kernel modules can be configured to use this
   leading to breakage.
 - Check that the GPIO is valid in the lantiq driver
 - Fix the flag bits introduced for v3.5, so they don't overlap
 - Fix a device tree intialization bug for imx21-compatible devices
 - Carry over the OF node to the TPS65910 GPIO chip struct

* tag 'fixes-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: tps65910: initialize of_node of gpio_chip
  gpio/mxc: make irqs work for fsl,imx21-gpio devices
  gpio: fix bits conflict for gpio flags
  mips: pci-lantiq: Fix check for valid gpio
  gpio: export devm_gpio_request_one
  gpiolib: wm8994: Pay attention to the value set when enabling as output
  gpio/msm_v1: CONFIG_GPIO_MSM_V1 is only available on three SoCs
  gpio-sta2x11: don't use pdata if null
  gpio/omap: fix invalid context restore of gpio bank-0
  gpio/omap: fix irq loss while in idle with debounce on
2012-07-10 13:24:48 -07:00
Arnd Bergmann
9861e9551f Here is one PM regression fix and a defconfig change to disable
echi-omap because the driver currently causes issues with PM.
 This annoys Kevin as it makes it harder for him to validate that
 PM is working. The proper fixes for the echi-omap are being
 discussed, but looks like it will not be properly working with PM
 until in v3.7.
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Merge tag 'omap-fixes-for-v3.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

From Tony Lindgren <tony@atomide.com>:
Here is one PM regression fix and a defconfig change to disable
echi-omap because the driver currently causes issues with PM.
This annoys Kevin as it makes it harder for him to validate that
PM is working. The proper fixes for the echi-omap are being
discussed, but looks like it will not be properly working with PM
until in v3.7.

* tag 'omap-fixes-for-v3.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: omap2plus_defconfig: EHCI driver is not stable, disable it
  ARM: OMAP2+: hwmod code/clockdomain data: fix 32K sync timer

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-10 16:12:39 +02:00
Benjamin Herrenschmidt
aa709f3bc9 powerpc/numa: Avoid stupid uninitialized warning from gcc
Newer gcc are being a bit blind here (it's pretty obvious we don't
reach the code path using the array if we haven't initialized the
pointer) but none of that is performance critical so let's just
silence it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-07-10 19:16:23 +10:00
Benjamin Herrenschmidt
21b2de3412 powerpc: Fix build of some debug irq code
There was a typo, checking for CONFIG_TRACE_IRQFLAG instead of
CONFIG_TRACE_IRQFLAGS causing some useful debug code to not be
built

This in turns causes a build error on BookE 64-bit due to incorrect
semicolons at the end of a couple of macros, so let's fix that too

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: stable@vger.kernel.org [v3.4]
2012-07-10 19:16:20 +10:00
Benjamin Herrenschmidt
be2cf20a5a powerpc: More fixes for lazy IRQ vs. idle
Looks like we still have issues with pSeries and Cell idle code
vs. the lazy irq state. In fact, the reset fixes that went upstream
are exposing the problem more by causing BUG_ON() to trigger (which
this patch turns into a WARN_ON instead).

We need to be careful when using a variant of low power state that
has the side effect of turning interrupts back on, to properly set
all the SW & lazy state to look as if everything is enabled before
we enter the low power state with MSR:EE off as we will return with
MSR:EE on. If not, we have a discrepancy of state which can cause
things to go very wrong later on.

This patch moves the logic into a helper and uses it from the
pseries and cell idle code. The power4/970 idle code already got
things right (in assembly even !) so I'm not touching it. The power7
"bare metal" idle code is subtly different and correct. Remains PA6T
and some hypervisor based Cell platforms which have questionable
code in there, but they are mostly dead platforms so I'll fix them
when I manage to get final answers from the respective maintainers
about how the low power state actually works on them.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: stable@vger.kernel.org [v3.4]
2012-07-10 19:16:07 +10:00
Kevin Hilman
06b4ba5295 ARM: OMAP2+: omap2plus_defconfig: EHCI driver is not stable, disable it
The EHCI driver is not stable enough to be enabled by default.  In v3.5,
it has at least the following problems:

- warning dump during bootup
- hang during suspend
- prevents CORE powerdomain from entering retention during idle (even
  when no USB devices connected.)

This demonstrates that this driver has not been thoroughly tested and
therfore should not be enabled in the default defconfig.

In addition, the problems above cause new PM regressions which need be
addressed before this driver should be enabled in the default
defconfig.

Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-07-09 01:15:07 -07:00
Linus Torvalds
cd6407fe22 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "Last merge window, we had some updates from Al cleaning up the signal
  restart handling.  These have caused some problems on ARM, and while
  Al has some fixes, we have some concerns with Al's patches but we've
  been unsuccesful with discussing this.

  We have got to the point where we need to do something, and we've
  decided that the best solution is to revert the appropriate commits
  until Al is able to reply to us.

  Also included here are four patches to fix warnings that I've noticed
  in my build system, and one fix for kprobes test code."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: fix warning caused by wrongly typed arm_dma_limit
  ARM: fix warnings about atomic64_read
  ARM: 7440/1: kprobes: only test 'sub pc, pc, #1b-2b+8-2' on ARMv6
  ARM: 7441/1: perf: return -EOPNOTSUPP if requested mode exclusion is unavailable
  ARM: 7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK"
  ARM: 7442/1: Revert "remove unused restart trampoline"
  ARM: fix set_domain() macro
  ARM: fix mach-versatile/pci.c warning
2012-07-07 11:20:59 -07:00
Magnus Damm
873e9f7a3b ARM: shmobile: fix platsmp.c build when ARCH_SH73A0=n
Fix build error in the case of SMP=y but ARCH_SH73A0=n
introduced by:

9601e87 ARM: shmobile: fix smp build

The use of of_machine_is_compatible() will link in the
the SoC-specific symbols:
"sh73a0_get_core_count", "sh73a0_smp_prepare_cpus",
"sh73a0_secondary_init" and "sh73a0_boot_secondary".

This patch adds an ugly #ifdef wrapper as a stop-gap
solution.

Signed-off-by: Magnus Damm <damm@opensource.se>
Tested-by: Tested-by: Simon Horman <horms@verge.net.au>
Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-06 22:00:20 +02:00
Arnd Bergmann
78ee225fc1 Merge branch 'ux500/fixes-3.5' into fixes
From Lee Jones <lee.jones@linaro.org>:

* ux500/fixes-3.5:
  ARM: ux500: Over-ride the DT device naming scheme for pinctrl
  ARM: ux500: Fix build errors/warnings when MACH_UX500_DT is not set
  of: address: Don't fail a lookup just because a node has no reg property

I ended up rebasing Lee's branch on 3.5-rc5 because we have more patches
lined for 3.6 that depend on them, and I want to keep all branches in
arm-soc be based on -rc releases rather than random commits in the
upstream history.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-06 21:44:51 +02:00
Lee Jones
2b667a2d80 ARM: ux500: Over-ride the DT device naming scheme for pinctrl
When pin control mapping tables are written the registered device
name is supplied for use in name-based searches within the pinctrl
driver. In the case of the DB8500 the string "pinctrl-db8500" is
used. However, when we register the driver with Device Tree, its
naming convention uses something that looks more like "pinctrl.2".

To work around the device naming inconsistencies between devices
registered via platform code and the ones registered by Device
Tree, we use AUXDATA to over-ride the Device Tree naming scheme.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2012-07-06 21:42:10 +02:00
Lee Jones
c57920e6c2 ARM: ux500: Fix build errors/warnings when MACH_UX500_DT is not set
When MACH_UX500_DT and all related Device Tree configurations are forced
off the warning and error below prevent the kernel from compiling. This
simple patch fixes both issues and allows for full build and boot of
ST-Ericsson's low-cost development board, Snowball.

Warnings fixed:
  arch/arm/mach-ux500/board-mop500.c:680:32: warning: ‘snowball_of_platform_devs’ defined but not used

Errors fixed:
  arch/arm/mach-ux500/timer.c: In function ‘ux500_timer_init’:
  arch/arm/mach-ux500/timer.c:66:3: error: implicit declaration of function ‘of_find_matching_node’
  arch/arm/mach-ux500/timer.c:66:6: warning: assignment makes pointer from integer without a cast

Cc: stable@vger.kernel.org
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2012-07-06 21:42:10 +02:00
Ingo Molnar
40b3c43f04 Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/urgent
Pull low probability CONFIG_RCU_BOOST=y deadlock fix from Paul E. McKenney.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-07-06 11:18:50 +02:00
Tony Lindgren
5f37609759 Merge branch 'for_3.5/fixes/pm-3' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into fixes 2012-07-06 01:58:23 -07:00
Paul Walmsley
006c7f1844 ARM: OMAP2+: hwmod code/clockdomain data: fix 32K sync timer
Kevin discovered that commit c8d82ff68f
("ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod
database") broke CORE idle on OMAP3.  This prevents device low power
states.

The root cause is that the 32K sync timer IP block does not support
smart-idle mode[1], and so the hwmod code keeps the IP block in
no-idle mode while it is active.  This in turn prevents the WKUP
clockdomain from transitioning to idle.  There is a hardcoded sleep
dependency that prevents the CORE_L3 and CORE_CM clockdomains from
transitioning to idle when the WKUP clockdomain is active[2], so the
chip cannot enter any device low power states.

It turns out that there is no need to take the 32k sync timer out of
idle.  The IP block itself probably does not have any native idle
handling at all, due to its simplicity.  Furthermore, the PRCM will
never request target idle for this IP block while the kernel is
running, due to the sleep dependency that prevents the WKUP
clockdomain from idling while the CORE_L3 clockdomain is active.  So
we can safely leave the 32k sync timer in target-force-idle mode, even
while we continue to access it.

This workaround is implemented by defining a new clockdomain flag,
CLKDM_ACTIVE_WITH_MPU, that indicates that the clockdomain is
guaranteed to be active whenever the MPU is inactive.  If an IP
block's main functional clock exists inside this clockdomain, and the
IP block does not support smart-idle modes, then the hwmod code will
place the IP block into target force-idle mode even when enabled.  The
WKUP clockdomains on OMAP3/4 are marked with this flag.  (On OMAP2xxx,
no OCP header existed on the 32k sync timer.)   Other clockdomains also
should be marked with this flag, but those changes are deferred until
a later merge window, to create a minimal fix.

Another theoretically clean fix for this problem would be to implement
PM runtime-based control for 32k sync timer accesses.  These PM
runtime calls would need to located in a custom clocksource, since the
32k sync timer is currently used as an MMIO clocksource.  But in
practice, there would be little benefit to doing so; and there would
be some cost, due to the addition of unnecessary lines of code and the
additional CPU overhead of the PM runtime and hwmod code - unnecessary
in this case.

Another possible fix would have been to modify the pm34xx.c code to
force the IP block idle before entering WFI.  But this would not have
been an acceptable approach: we are trying to remove this type of
centralized IP block idle control from the PM code.

This patch is a collaboration between Kevin Hilman <khilman@ti.com>
and Paul Walmsley <paul@pwsan.com>.

Thanks to Vaibhav Hiremath <hvaibhav@ti.com> for providing comments on
an earlier version of this patch.  Thanks to Tero Kristo
<t-kristo@ti.com> for identifying a bug in an earlier version of this
patch.  Thanks to Benoît Cousson <b-cousson@ti.com> for identifying
some bugs in several versions of this patch and for implementation
comments.

References:

1. Table 16-96 "REG_32KSYNCNT_SYSCONFIG" of the OMAP34xx TRM Rev. ZU
   (SWPU223U), available from:
   http://www.ti.com/pdfs/wtbu/OMAP34x_ES3.1.x_PUBLIC_TRM_vzU.zip

2. Table 4-72 "Sleep Dependencies" of the OMAP34xx TRM Rev. ZU
   (SWPU223U)

3. ibid.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-07-05 17:25:38 -07:00
Linus Torvalds
c4aed353b1 ARM: SoC fixes for 3.5-rc
Small fixes on multiple ARM platforms
 * A build regression from a previous fix on dove and mv78xx0
 * Two fixes for recently (3.5-rc1) changed mmp/pxa code
 * multiple omap2+ bug fixes
 * two trivial fixes for i.MX
 * one v3.5 regression for mxs
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Small fixes on multiple ARM platforms
   - A build regression from a previous fix on dove and mv78xx0
   - Two fixes for recently (3.5-rc1) changed mmp/pxa code
   - multiple omap2+ bug fixes
   - two trivial fixes for i.MX
   - one v3.5 regression for mxs"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: apx4devkit: fix FEC enabling PHY clock
  ARM: OMAP2+: hwmod data: Fix wrong McBSP clock alias on OMAP4
  ARM: OMAP4: hwmod data: temporarily comment out data for the usb_host_fs and aess IP blocks
  ARM: Orion: Fix WDT compile for Dove and MV78xx0
  ARM: mmp: remove mach/gpio-pxa.h
  ARM: imx: assert SCC gate stays enabled
  ARM: OMAP4: TWL6030: ensure sys_nirq1 is mux'd and wakeup enabled
  ARM: OMAP2: Overo: init I2C before MMC to fix MMC suspend/resume failure
  ARM: imx27_visstrim_m10: Do not include <asm/system.h>
  ARM: pxa: hx4700: Fix basic suspend/resume
2012-07-05 13:20:02 -07:00
Linus Torvalds
6bc51545da Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fix from Marcelo Tosatti:
 "Memory leak and oops on the x86 mmu code, and sanitization of the
  KVM_IRQFD ioctl."

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: MMU: fix shrinking page from the empty mmu
  KVM: fix fault page leak
  KVM: Sanitize KVM_IRQFD flags
  KVM: Add missing KVM_IRQFD API documentation
  KVM: Pass kvm_irqfd to functions
2012-07-05 13:16:21 -07:00
Roland Stigge
42b14cb037 mips: pci-lantiq: Fix check for valid gpio
This patch fixes two checks for valid gpio number, formerly (wrongly)
considering zero as invalid, now using gpio_is_valid().

Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-05 15:02:18 +02:00
Russell King
09b2ad13da ARM: fix warning caused by wrongly typed arm_dma_limit
arch/arm/mm/init.c: In function 'arm_memblock_init':
arch/arm/mm/init.c:380: warning: comparison of distinct pointer types lacks a cast

by fixing the typecast in its definition when DMA_ZONE is disabled.
This was missed in 4986e5c7c (ARM: mm: fix type of the arm_dma_limit
global variable).

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-05 13:11:31 +01:00
Russell King
b89d607b59 ARM: fix warnings about atomic64_read
Fix:
net/netfilter/xt_connbytes.c: In function 'connbytes_mt':
net/netfilter/xt_connbytes.c:43: warning: passing argument 1 of 'atomic64_read' discards qualifiers from pointer target type
...

by adding the missing const.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-05 13:06:32 +01:00