Commit Graph

75159 Commits

Author SHA1 Message Date
Linus Torvalds
609e3ff3ff Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:
 "Two small fixes for Sparc, nobody uses sparc, so these are low risk :-)

   1) Piggyback is too picky about the symbol types that _start and _end
      have in the final kernel image, and it thus breaks with newer
      binutils.  Future proof by getting rid of the symbol type checks.

   2) exit_group() should kill register windows on sparc64 the same way
      we do for plain exit().  Thanks to Al Viro for spotting this."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: Fix piggyback with newer binutils.
  sparc64: exit_group should kill register windows just like plain exit.
2012-12-04 08:42:29 -08:00
David S. Miller
0032c85745 sparc: Fix piggyback with newer binutils.
Newer versions of binutils mark '_end' as 'B' instead of 'A' for
whatever reason.

To be honest, the piggyback code doesn't actually care what kind
of symbol _start and _end are, it just wants to find them and
record the address.

So remove the type from the match strings.

Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-03 11:24:25 -08:00
David S. Miller
de7531e857 sparc64: exit_group should kill register windows just like plain exit.
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-03 11:17:57 -08:00
Al Viro
25a3bc6bd1 [parisc] open(2) compat bug
In commit 9d73fc2d64 ("open*(2) compat fixes (s390, arm64)") I said:
>
> 	The usual rules for open()/openat()/open_by_handle_at() are
> 1) native 32bit - don't force O_LARGEFILE in flags
> 2) native 64bit - force O_LARGEFILE in flags
> 3) compat on 64bit host - as for native 32bit
> 4) native 32bit ABI for 64bit system (mips/n32, x86/x32) - as for native 64bit
>
> There are only two exceptions - s390 compat has open() forcing O_LARGEFILE and
> arm64 compat has open_by_handle_at() doing the same thing.  The same binaries
> on native host (s390/31 and arm resp.) will *not* force O_LARGEFILE, so IMO
> both are emulation bugs.

Three exceptions, actually - parisc open() is another case like that.
Native 32bit won't force O_LARGEFILE, the same binary on parisc64 will.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-03 11:13:09 -08:00
Al Viro
9d73fc2d64 open*(2) compat fixes (s390, arm64)
The usual rules for open()/openat()/open_by_handle_at() are
 1) native 32bit - don't force O_LARGEFILE in flags
 2) native 64bit - force O_LARGEFILE in flags
 3) compat on 64bit host - as for native 32bit
 4) native 32bit ABI for 64bit system (mips/n32, x86/x32) - as for
    native 64bit

There are only two exceptions - s390 compat has open() forcing
O_LARGEFILE and arm64 compat has open_by_handle_at() doing the same
thing.  The same binaries on native host (s390/31 and arm resp.) will
*not* force O_LARGEFILE, so IMO both are emulation bugs.

Objections? The fix is obvious...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-02 10:46:38 -08:00
Linus Torvalds
b3c3a9cf2a Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU fix from Ingo Molnar:
 "Fix leaking RCU extended quiescent state, which might trigger warnings
  and mess up the extended quiescent state tracking logic into thinking
  that we are in "RCU user mode" while we aren't."

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rcu: Fix unrecovered RCU user mode in syscall_trace_leave()
2012-12-01 13:08:36 -08:00
Linus Torvalds
455e987c0c Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "This is mostly about unbreaking architectures that took the UAPI
  changes in the v3.7 cycle, plus misc fixes."

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf kvm: Fix building perf kvm on non x86 arches
  perf kvm: Rename perf_kvm to perf_kvm_stat
  perf: Make perf build for x86 with UAPI disintegration applied
  perf powerpc: Use uapi/unistd.h to fix build error
  tools: Pass the target in descend
  tools: Honour the O= flag when tool build called from a higher Makefile
  tools: Define a Makefile function to do subdir processing
  x86: Export asm/{svm.h,vmx.h,perf_regs.h}
  perf tools: Fix strbuf_addf() when the buffer needs to grow
  perf header: Fix numa topology printing
  perf, powerpc: Fix hw breakpoints returning -ENOSPC
2012-12-01 13:07:48 -08:00
Linus Torvalds
7c17e486e8 Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin.

This includes the resume-time FPU corruption fix from the chromeos guys,
marked for stable.

* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, fpu: Avoid FPU lazy restore after suspend
  x86-32: Unbreak booting on some 486 clones
  x86, kvm: Remove incorrect redundant assembly constraint
2012-11-30 17:00:23 -08:00
Linus Torvalds
8fdd78eeb1 C6X fixes for v3.7
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Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming

Pull C6X fixes from Mark Salter.

* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
  c6x: use generic kvm_para.h
  c6x: remove internal kernel symbols from exported setup.h
  c6x: fix misleading comment
  c6x: run do_notify_resume with interrupts enabled
2012-11-30 16:59:50 -08:00
Linus Torvalds
31e06a42a3 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull assorted signal-related fixes from Al Viro:
 "uml regression fix (braino in sys_execve() patch) + a bunch of fucked
  sigaltstack-on-rt_sigreturn uses, similar to sparc64 fix that went in
  through davem's tree.  m32r horrors not included - that one's waiting
  for maintainer."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
  microblaze: rt_sigreturn is too trigger-happy about sigaltstack errors
  score: do_sigaltstack() expects a userland pointer...
  sh64: fix altstack switching on sigreturn
  openrisk: fix altstack switching on sigreturn
  um: get_safe_registers() should be done in flush_thread(), not start_thread()
2012-11-30 16:58:55 -08:00
Vincent Palatin
644c154186 x86, fpu: Avoid FPU lazy restore after suspend
When a cpu enters S3 state, the FPU state is lost.
After resuming for S3, if we try to lazy restore the FPU for a process running
on the same CPU, this will result in a corrupted FPU context.

Ensure that "fpu_owner_task" is properly invalided when (re-)initializing a CPU,
so nobody will try to lazy restore a state which doesn't exist in the hardware.

Tested with a 64-bit kernel on a 4-core Ivybridge CPU with eagerfpu=off,
by doing thousands of suspend/resume cycles with 4 processes doing FPU
operations running. Without the patch, a process is killed after a
few hundreds cycles by a SIGFPE.

Cc: Duncan Laurie <dlaurie@chromium.org>
Cc: Olof Johansson <olofj@chromium.org>
Cc: <stable@kernel.org> v3.4+ # for 3.4 need to replace this_cpu_write by percpu_write
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Link: http://lkml.kernel.org/r/1354306532-1014-1-git-send-email-vpalatin@chromium.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-11-30 13:48:05 -08:00
Linus Torvalds
73efd00d47 ARM: SoC fixes for 3.7
These are three fixes for the Marvell EBU family and one for the Samsung
 s3c platforms. All of them are obvious should still make it into 3.7.
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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:
 "These are three fixes for the Marvell EBU family and one for the
  Samsung s3c platforms.  All of them are obvious should still make it
  into 3.7."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: Kirkwood: Update PCI-E fixup
  Dove: Fix irq_to_pmu()
  Dove: Attempt to fix PMU/RTC interrupts
  ARM: S3C24XX: Fix potential NULL pointer dereference error
2012-11-30 10:30:34 -08:00
Linus Torvalds
90bf80a1f1 ARM: ixp4xx bug fixes
These were originally prepared by Krzysztof Halasa but not submitted
 in time for v3.7 due to some confusion about how ixp4xx patches should
 be handled. Jason Cooper thankfully offered to help out sending the
 patches upstream through arm-soc now, but given the timing, we could
 as well delay them for 3.8.
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Merge tag 'ixp4xx-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM ixp4xx bug fixes from Arnd Bergmann:
 "These were originally prepared by Krzysztof Halasa but not submitted
  in time for v3.7 due to some confusion about how ixp4xx patches should
  be handled.  Jason Cooper thankfully offered to help out sending the
  patches upstream through arm-soc now, but given the timing, we could
  as well delay them for 3.8."

* tag 'ixp4xx-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  IXP4xx: use __iomem for MMIO
  IXP4xx: map CPU config registers within VMALLOC region.
  IXP4xx: Always ioremap() Queue Manager MMIO region at boot.
  ixp4xx: Declare MODULE_FIRMWARE usage
  IXP4xx crypto: MOD_AES{128,192,256} already include key size.
  WAN: Remove redundant HDLC info printed by IXP4xx HSS driver.
  IXP4xx: Remove time limit for PCI TRDY to enable use of slow devices.
  IXP4xx: ixp4xx_crypto driver requires Queue Manager and NPE drivers.
  IXP4xx: HW pseudo-random generator is available on IXP45x/46x only.
  IXP4xx: Fix off-by-one bug in Goramo MultiLink platform.
  IXP4xx: Fix Goramo MultiLink platform compilation.
2012-11-30 10:28:09 -08:00
Arnd Bergmann
9434d24b11 Merge branch 'v3.7-samsung-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
From Kukjin Kim <kgene.kim@samsung.com>:

Samsung fixes for v3.7

* 'v3.7-samsung-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: S3C24XX: Fix potential NULL pointer dereference error

This would have been ok to delay to 3.8 according to Kukjin, but since
it's an obvious bug fix and a potential NULL pointer dereference, it
seem appropriate for a late 3.7 submission.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-11-29 15:07:27 +01:00
Al Viro
02232f8d2b microblaze: rt_sigreturn is too trigger-happy about sigaltstack errors
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-11-28 21:46:12 -05:00
Al Viro
afd3f96dc3 score: do_sigaltstack() expects a userland pointer...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-11-28 21:46:12 -05:00
Al Viro
9dc87c7b5b sh64: fix altstack switching on sigreturn
incidentally, declaring a local variable as __user (!) to make
sparse STFU is really sick.  Especially since sparse had been
100% right - it *is* a bug.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-11-28 21:46:11 -05:00
Al Viro
d26654e5f9 openrisk: fix altstack switching on sigreturn
do_sigaltstack() expects _userland_ address, TYVM...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-11-28 21:46:11 -05:00
Al Viro
9436d5c32b um: get_safe_registers() should be done in flush_thread(), not start_thread()
... or we'll end up buggering the results of ELF_PLAT_INIT()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-11-28 21:46:03 -05:00
Mark Salter
93bbd0c087 c6x: use generic kvm_para.h
Signed-off-by: Mark Salter <msalter@redhat.com>
2012-11-28 14:33:03 -05:00
Mark Salter
de0eed2813 c6x: remove internal kernel symbols from exported setup.h
Some internal kernel symbols were referenced in the exported setup.h.
This splits out the internal bits from the exported uapi bits.

Signed-off-by: Mark Salter <msalter@redhat.com>
2012-11-28 14:32:54 -05:00
Will Deacon
ea3aacf5f2 ARM: 7586/1: sp804: set cpumask to cpu_possible_mask for clock event device
The SP804 driver statically initialises the cpumask of the clock event
device to be cpu_all_mask, which is derived from the compile-time
constant NR_CPUS. This breaks SMP_ON_UP systems where the interrupt
controller handling the sp804 doesn't have the irq_set_affinity callback
on the irq_chip, because the common timer code fails to identify the
device as cpu-local and ends up treating it as a broadcast device
instead.

This patch fixes the problem by using cpu_possible_mask at runtime,
which will correctly represent the possible CPUs when SMP_ON_UP is being
used.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-11-28 09:46:57 +00:00
H. Peter Anvin
6662c34fa9 x86-32: Unbreak booting on some 486 clones
There appear to have been some 486 clones, including the "enhanced"
version of Am486, which have CPUID but not CR4.  These 486 clones had
only the FPU flag, if any, unlike the Intel 486s with CPUID, which
also had VME and therefore needed CR4.

Therefore, look at the basic CPUID flags and require at least one bit
other than bit 0 before we modify CR4.

Thanks to Christian Ludloff of sandpile.org for confirming this as a
problem.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-11-27 09:26:33 -08:00
Linus Torvalds
33057692c2 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "Not much here, just a couple minor/cosmetic fixes and a patch for the
  decompressor which fixes problems with modern GCC and CPUs."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7583/1: decompressor: Enable unaligned memory access for v6 and above
  ARM: 7572/1: proc-v6.S: fix comment
  ARM: 7570/1: quiet down the non make -s output
2012-11-26 17:43:10 -08:00
H. Peter Anvin
cb7cb2864e x86, kvm: Remove incorrect redundant assembly constraint
In __emulate_1op_rax_rdx, we use "+a" and "+d" which are input/output
constraints, and *then* use "a" and "d" as input constraints.  This is
incorrect, but happens to work on some versions of gcc.

However, it breaks gcc with -O0 and icc, and may break on future
versions of gcc.

Reported-and-tested-by: Melanie Blower <melanie.blower@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/B3584E72CFEBED439A3ECA9BCE67A4EF1B17AF90@FMSMSX107.amr.corp.intel.com
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
2012-11-26 15:52:48 -08:00
Mark Salter
9c0603f487 c6x: fix misleading comment
A comment in entry.S incorrectly stated that interrupt vectors
called __do_IRQ() and that int6 vector was used for syscalls.
Both statements are incorrect for the current kernel, so this
patch cleans up the wording to reflect current reality.

Signed-off-by: Mark Salter <msalter@redhat.com>
2012-11-26 18:14:00 -05:00
Mark Salter
9d34340ebd c6x: run do_notify_resume with interrupts enabled
C6x was mistakenly running do_notify_resume with interrupts disabled.
This would triggerlead to a warning in local_bh_enable() because interrupts
were disabled:

------------[ cut here ]------------
WARNING: at /es/linux/linux-next/kernel/softirq.c:160 local_bh_enable+0x5c/0x10c()
Modules linked in:

             e02f384d e002cda8 e02f3469 e02f384d 000000a0 e00363fc e01cce58 e5005c00
             e0327986 00000000 e63c0aec 00000164 e00363fc 00000000 fffffffe e5005c00
             e61fde00 e0268184 00000134 e01c91dc 00000001 fffffffe 00000000 10000100
             e01c80e4 e5005c00 00000000 00000000 00000000 e63c0aec e526ce00 10000100
             e628f920 e63c0a88 e6010410 e6449750 e5005c20 00000000 00000000 e63c0a80
             e5005c20 e01c8590 e63c0a80 e5005c20 e63c0aec e00a0554 e009c758 e639e860
 irq_spurious_proc_fops+0x6ad/0x3438
 warn_slowpath_common+0x8c/0xb8
 irq_spurious_proc_fops+0x2c9/0x3438
 irq_spurious_proc_fops+0x6ad/0x3438
 local_bh_enable+0x5c/0x10c
 sk_alloc+0x34/0xa4
 local_bh_enable+0x5c/0x10c
 unix_release_sock+0x5c/0x2a0
 sys_connect+0x94/0xd4
 sock_release+0x38/0x104
 sock_close+0x3c/0x54
 __fput+0x154/0x2ec
 filp_close+0xc0/0xe4
 task_work_run+0xdc/0x12c
 sys_close+0x2c/0x74
 resume_userspace+0x0/0x30
---[ end trace a70cbd610ae1f6b4 ]---

This patch enables interrupts before calling do_notify_resume().

Signed-off-by: Mark Salter <msalter@redhat.com>
2012-11-26 18:06:13 -05:00
Olof Johansson
70e1584d47 orion fixes for v3.7
- dove irq fix
  - kirkwood pcie fix
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Merge tag 'orion_fixes_for_3.7' of git://git.infradead.org/users/jcooper/linux into fixes

From Jason Cooper:

orion fixes for v3.7
 - dove irq fix
 - kirkwood pcie fix

* tag 'orion_fixes_for_3.7' of git://git.infradead.org/users/jcooper/linux:
  ARM: Kirkwood: Update PCI-E fixup
  Dove: Fix irq_to_pmu()
  Dove: Attempt to fix PMU/RTC interrupts
2012-11-25 22:02:47 -08:00
Linus Torvalds
08e627b5ce Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc EEH bugfixes from Benjamin Herrenschmidt.

Two one-liner fixes for the new EEH code.

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/eeh: Do not invalidate PE properly
  powerpc/pseries: Fix oops with MSIs when missing EEH PEs
2012-11-25 17:57:01 -08:00
Linus Torvalds
c2a65d3d85 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
 "Three issues fixed accross the field:

   - Some functions that were recently outlined as part of a preemption
     fix were causing problems with function tracing.
   - The recently merged in-kernel MPI library uses very outdated
     headers that contain MIPS-specific code which won't build on with
     gcc 4.4 or newer.
   - The MIPS non-NUMA memory initialization was making only a very
     half-baked attempt at merging adjacent memory ranges.  This kept
     the code simple enough but is now causing issues with kexec."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MPI: Fix compilation on MIPS with GCC 4.4 and newer
  MIPS: Fix crash that occurs when function tracing is enabled
  MIPS: Merge overlapping bootmem ranges
2012-11-25 17:55:04 -08:00
Gavin Shan
e716e01438 powerpc/eeh: Do not invalidate PE properly
While the EEH does recovery on the specific PE that has PCI errors,
the PCI devices belonging to the PE will be removed and the PE will
be marked as invalid since we still need the information stored in
the PE. We only invalidate the PE when it doesn't have associated
EEH devices and valid child PEs. However, the code used to check
that is wrong. The patch fixes that.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-11-26 09:14:16 +11:00
Linus Torvalds
2654ad44b5 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 arch fixes from Peter Anvin:
 "Here is a collection of fixes for 3.7-rc7.  This is a superset of
  tglx' earlier pull request."

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86-64: Fix ordering of CFI directives and recent ASM_CLAC additions
  x86, microcode, AMD: Add support for family 16h processors
  x86-32: Export kernel_stack_pointer() for modules
  x86-32: Fix invalid stack address while in softirq
  x86, efi: Fix processor-specific memcpy() build error
  x86: remove dummy long from EFI stub
  x86, mm: Correct vmflag test for checking VM_HUGETLB
  x86, amd: Disable way access filter on Piledriver CPUs
  x86/mce: Do not change worker's running cpu in cmci_rediscover().
  x86/ce4100: Fix PCI configuration register access for devices without interrupts
  x86/ce4100: Fix reboot by forcing the reboot method to be KBD
  x86/ce4100: Fix pm_poweroff
  MAINTAINERS: Update email address for Robert Richter
  x86, microcode_amd: Change email addresses, MAINTAINERS entry
  MAINTAINERS: Change Boris' email address
  EDAC: Change Boris' email address
  x86, AMD: Change Boris' email address
2012-11-23 20:03:14 -10:00
Linus Torvalds
5e351cdc99 Device tree regression fix for v3.7
Simple build regression fix for DT device drivers on Sparc. An earlier
 change had masked out the of_iomap() helper on SPARC.
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull device tree regression fix from Grant Likely:
 "Simple build regression fix for DT device drivers on Sparc.  An
  earlier change had masked out the of_iomap() helper on SPARC."

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  of/address: sparc: Declare of_iomap as an extern function for sparc again
2012-11-23 12:36:06 -10:00
Andreas Larsson
0e622d3919 of/address: sparc: Declare of_iomap as an extern function for sparc again
This bug-fix makes sure that of_iomap is defined extern for sparc so that the
sparc-specific implementation of_iomap is once again used when including
include/linux/of_address.h in a sparc context. OF_GPIO that is now available for
sparc relies on this.

The bug was inadvertently introduced in a850a75, "of/address: add empty static
inlines for !CONFIG_OF", that added a static dummy inline for of_iomap when
!CONFIG_OF_ADDRESS. However, CONFIG_OF_ADDRESS is never defined for sparc, but
there is a sparc-specific implementation /arch/sparc/kernel/of_device_common.c.

This fix takes the same approach as 0bce04b that solved the equivalent problem
for of_address_to_resource.

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Acked-by: David Miller <davem@davemloft.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-11-23 22:01:15 +00:00
Linus Torvalds
33f1459340 Merge branch 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Bugfixes for the i2c subsystem.

  Except for a few one-liners, there is mainly one revert because of an
  overlooked dependency.  Since there is no linux-next at the moment, I
  did some extra testing, and all was fine for me."

* 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux:
  i2c: mxs: Handle i2c DMA failure properly
  i2c: s3c2410: Fix code to free gpios
  i2c: omap: ensure writes to dev->buf_len are ordered
  Revert "ARM: OMAP: convert I2C driver to PM QoS for MPU latency constraints"
  i2c: at91: fix SMBus quick command
2012-11-23 11:59:26 -10:00
Linus Torvalds
f3a443af9e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fix from David Miller:
 "Bug fix from Al Viro"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: not any error from do_sigaltstack() should fail rt_sigreturn()
2012-11-23 11:55:09 -10:00
Linus Torvalds
45aaff0679 ARM: SoC fixes for 3.7
I missed one pull request from Samsung with one fix in the previous
 batch. Here it is -- a dma driver fix for an early version of silicon
 that they still support.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull one more ARM SoC fix from Olof Johansson:
 "I missed one pull request from Samsung with one fix in the previous
  batch.  Here it is -- a dma driver fix for an early version of silicon
  that they still support."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: EXYNOS: PL330 MDMA1 fix for revision 0 of Exynos4210 SOC
2012-11-23 11:54:22 -10:00
Al Cooper
f93a1a00f2 MIPS: Fix crash that occurs when function tracing is enabled
A recent patch changed some irq routines from inlines to functions.
These routines are called by the tracer code. Now that they're functions,
if they are compiled for function tracing they will call the tracer
and crash the system due to infinite recursion. The fix disables
tracing in these functions by using "notrace" in the function
definition.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Reviewed-by: David Daney <david.daney@cavium.com>
Pathchwork: https://patchwork.linux-mips.org/patch/4564/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-11-23 18:44:38 +01:00
Ralf Baechle
0ec7ec75f6 MIPS: Merge overlapping bootmem ranges
Without this, we may end up with something like this in /proc/iomem:

01100000-014fffff : System RAM
  01100000-013bf48f : Kernel code
  013bf490-0149e01f : Kernel data
01500000-0c0fffff : System RAM

but the two System RAM ranges should be one single range.  This particular
case will result in kexec failure on Octeon systems if the kernel being
loaded by kexec is bigger than the already running kernel.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-11-23 18:44:37 +01:00
Dave Martin
5010192d5a ARM: 7583/1: decompressor: Enable unaligned memory access for v6 and above
Modern GCC can generate code which makes use of the CPU's native
unaligned memory access capabilities.  This is useful for the C
decompressor implementations used for unpacking compressed kernels.

This patch disables alignment faults and enables the v6 unaligned
access model on CPUs which support these features (i.e., v6 and
later), allowing full unaligned access support for C code in the
decompressor.

The decompressor C code must not be built to assume that unaligned
access works if support for v5 or older platforms is included in
the kernel.

For correct code generation, C decompressor code must always use
the get_unaligned and put_unaligned accessors when dealing with
unaligned pointers, regardless of this patch.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-11-23 13:02:03 +00:00
Linus Torvalds
26d29d06ea Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "This fixes recent regression where /dev/input/mice got assigned wrong
  device node which messed up setups with static /dev, and a regression
  in ads7846 GPIO debounce setup."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  ARM - OMAP: ads7846: fix pendown debounce setting
  Input: ads7846 - enable pendown GPIO debounce time setting
  Input: mousedev - move /dev/input/mice to the correct minor
  Input: MT - document new 'flags' argument of input_mt_init_slots()
2012-11-22 21:45:34 -10:00
Olof Johansson
c667f757f3 Merge branch 'v3.7-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
From Kukjin Kim:

Here is Samsung fixes for v3.7 and it is for fixing of mdma1 address
for exynos4210 rev0 SoC.

* 'v3.7-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: PL330 MDMA1 fix for revision 0 of Exynos4210 SOC

Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-22 20:43:37 -08:00
Alexey Kardashevskiy
bb4618823a powerpc/pseries: Fix oops with MSIs when missing EEH PEs
The new EEH code introduced a small regression, if the EEH PEs
are missin (which happens currently in qemu for example), it
will deref a NULL pointer in the MSI code.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-11-23 13:26:05 +11:00
Linus Torvalds
5a903166dd ARM: SoC fixes for 3.7
A few more fixes for final 3.7. Two dealing with pinmux setup on OMAP, and
 one dealing with TV output on DaVinci. And one small MAINTAINER update.
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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 Olof Johansson:
 "A few more fixes for final 3.7.  Two dealing with pinmux setup on
  OMAP, and one dealing with TV output on DaVinci.  And one small
  MAINTAINER update."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: davinci: dm644x: fix out range signal for ED
  ARM: OMAP4: TWL: mux sys_drm_msecure as output for PMIC
  ARM: OMAP3: igep0020: Set WIFI/BT GPIO pins in correct mux mode
  ARM: OMAP: Add maintainer entry for IGEP machines
2012-11-22 09:22:13 -10:00
Linus Torvalds
b80d60e1c3 PARISC fixes on 20121122
This is two bug fixes: one fixes a loophole where rt_sigprocmask() with the
 wrong values panics the box (Denial of Service) and the other fixes an
 aliasing problem with get_shared_area() which could cause data corruption.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6

Pull PARISC fixes from James Bottomley:
 "This is two bug fixes: one fixes a loophole where rt_sigprocmask()
  with the wrong values panics the box (Denial of Service) and the other
  fixes an aliasing problem with get_shared_area() which could cause
  data corruption.

  Signed-off-by: James Bottomley <JBottomley@Parallels.com>"

* tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6:
  [PARISC] fix user-triggerable panic on parisc
  [PARISC] fix virtual aliasing issue in get_shared_area()
2012-11-22 09:16:29 -10:00
Al Viro
441a179daf [PARISC] fix user-triggerable panic on parisc
int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set, compat_sigset_t __user *oset,
                                    unsigned int sigsetsize)
{
        sigset_t old_set, new_set;
        int ret;

        if (set && get_sigset32(set, &new_set, sigsetsize))

...
static int
get_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
{
        compat_sigset_t s;
        int r;

        if (sz != sizeof *set) panic("put_sigset32()");

In other words, rt_sigprocmask(69, (void *)69, 69) done by 32bit process
will promptly panic the box.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-11-22 09:33:12 +00:00
Arnd Bergmann
0d2c9f0517 IXP4xx: use __iomem for MMIO
The ixp4xx queue manager uses "const struct qmgr_regs __iomem *" as the
type for a pointer that is passed to __raw_writel, which is not
allowed because of the const-ness.

Dropping the 'const' keyword fixes the problem. While we're here,
let's also drop the useless type cast.

Without this patch, building ixp4xx_defconfig results in:

In file included from arch/arm/mach-ixp4xx/ixp4xx_qmgr.c:15:0:
arch/arm/mach-ixp4xx/include/mach/qmgr.h: In function 'qmgr_put_entry':
arch/arm/mach-ixp4xx/include/mach/qmgr.h:96:2: warning: passing argument 2 of '__raw_writel' discards 'const' qualifier from pointer target type [enabled by default]
arch/arm/include/asm/io.h:88:91: note: expected 'volatile void *' but argument is of type 'const u32 *'
In file included from drivers/net/ethernet/xscale/ixp4xx_eth.c:41:0:
arch/arm/mach-ixp4xx/include/mach/qmgr.h: In function 'qmgr_put_entry':
arch/arm/mach-ixp4xx/include/mach/qmgr.h:96:2: warning: passing argument 2 of '__raw_writel' discards 'const' qualifier from pointer target type [enabled by default]
arch/arm/include/asm/io.h:88:91: note: expected 'volatile void *' but argument is of type 'const u32 *'
arch/arm/mach-ixp4xx/ixp4xx_qmgr.c: In function 'qmgr_set_irq':
arch/arm/mach-ixp4xx/ixp4xx_qmgr.c:41:9: warning: passing argument 2 of '__raw_writel' discards 'const' qualifier from pointer target type [enabled by default]
arch/arm/include/asm/io.h:88:91: note: expected 'volatile void *' but argument is of type 'const u32 *'

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2012-11-22 03:36:45 +00:00
Krzysztof Hałasa
b7b23db72f IXP4xx: map CPU config registers within VMALLOC region.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2012-11-22 03:36:38 +00:00
Krzysztof Hałasa
f0cdb15329 IXP4xx: Always ioremap() Queue Manager MMIO region at boot.
It doesn't make much sense to map QMgr dynamically - we almost always need it
and the static mapping will be needed for little-endian data-coherent operation
(to make QMgr region value-coherent).

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2012-11-22 03:36:30 +00:00
Tim Gardner
05cd3db0df ixp4xx: Declare MODULE_FIRMWARE usage
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2012-11-22 03:36:22 +00:00