Commit Graph

377348 Commits

Author SHA1 Message Date
Sebastian Ott 44b9ca4753 pci: add pcibios_release_device
Platforms may want to provide architecture-specific functionality when
a pci device is released. Add a pcibios_release_device() call that
architectures can override to do so.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-06-26 21:10:05 +02:00
Christian Borntraeger 24d5dd0208 s390/kvm: Provide function for setting the guest storage key
From time to time we need to set the guest storage key. Lets
provide a helper function that handles the changes with all the
right locking and checking.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-06-26 21:10:04 +02:00
Martin Schwidefsky 25b41a7b67 s390/sclp: add parameter to specify number of buffer pages
Add a kernel parameter to be able to specify the number of pages to be
used as output buffer by the line-mode sclp driver and the vt220 sclp
driver. The current number of output pages is 6, if the service element
is unavailable the boot messages alone can fill up the output buffer.
If this happens the system blocks until the service element is working
again. For a large LPAR with many devices it is sensible to have the
ability to increase the output buffer size. To help to debug this
situation add a counter for the page-pool-empty situation and make it
available as a sclp driver attribute.
To avoid the system to stall until the service element works again
add another kernel parameter to allow to drop output buffers.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-06-26 21:10:03 +02:00
Sebastian Ott 92820a5f99 s390: remove virt_to_phys implementation
virt_to_phys on s390 currently uses the LRA instruction to translate
virtual to physical addresses. This creates an unnecessary overhead
and caused trouble with dma debugging code (when called with an
address pointing to a already unmapped page).
Just get rid of s390's implementation and use the one from
asm-generic/io.h .

Note: with this change virt_to_phys will no longer work on vmalloc'ed
addresses.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-06-26 21:10:02 +02:00
Heiko Carstens b6ed49e0ce s390/smp: get rid of generic_smp_call_function_interrupt
Since 9a46ad6d6 "smp: make smp_call_function_many() use logic similar
to smp_call_function_single()" generic_smp_call_function_interrupt()
is only an alias to generic_smp_call_function_single_interrupt().

So remove the superfluous variant.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-06-26 21:10:01 +02:00
Sebastian Ott 1d46d33125 s390/qdio: remove unused function
Remove the unused function qdio_trace_aob.

Acked-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-06-26 21:10:00 +02:00
Sebastian Ott 9294896e97 s390/pci: use to_pci_dev
Use the to_pci_dev macro to fetch a pci_dev from a struct device
pointer.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-06-26 21:09:59 +02:00
Linus Torvalds 1e876e3b1a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
 "A couple of last-minute fixes: a build regression for !SMP, a recent
  memory detection patch caused kdump to break, a regression in regard
  to sscanf vs reboot from FCP, and two fixes in the DMA mapping code
  for PCI"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/ipl: Fix FCP WWPN and LUN format strings for read
  s390/mem_detect: fix memory hole handling
  s390/dma: support debug_dma_mapping_error
  s390/dma: fix mapping_error detection
  s390/irq: Only define synchronize_irq() on SMP
2013-06-25 09:08:07 -10:00
Linus Torvalds ad46547056 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc bugfix from Ben Herrenschmidt:
 "This is a fix for a regression causing a freescale "83xx" based
  platforms to crash on boot due to some PCI breakage"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/pci: Fix boot panic on mpc83xx (regression)
2013-06-25 09:06:48 -10:00
Linus Torvalds 5dbc746960 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse bugfix from Miklos Szeredi:
 "This fixes a race between fallocate() and truncate()"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: hold i_mutex in fuse_file_fallocate()
2013-06-25 09:06:04 -10:00
Linus Torvalds f97f7d2d27 spi: Updates for v3.10
A few last minute SPI updates: fix a missized allocation and use atomic
 allocations in atomic context in the PXA driver, and fix the checking of
 return codes in the S3C64xx driver which caused spurious errors under
 heavy load.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJRyC7dAAoJELSic+t+oim9WG0P/i7Y7K/mKVcxtllYhgmCA8Hh
 rteUwd5EtD95/ZmG3L8t4sLODpG8lTCmttau4dxMDo2ZjQb4O+XnKrOfKIhPGQ9l
 6t0ySSpO3H0trOoq2cAF9yJAJsfOn/E/+iyiXR1b6OGvbmRHyfaXHSC4H3U7FuYJ
 SX1f36Ne1c3ItQIg6YLVsqLiu3YnExK1P/YVU5l7gVrQWrNFTc2YVygd6TkLBnDw
 6u4dbFlidN2OwSaRe9h1+IOYj6SVuAhQkTKq54LIwcQJ8+vvLo1Jt8VU3eLE/r7c
 0fKQBegVwAwanjn1KAH2mVQgITuT9w57Z7l9xf9r5U8F9XWDp8aYS8rfGXS4vWwh
 05GCGs9otJ219DLdxOWjDVOBA1JZXzGhX2kDUd7f6BQvrzZizCcXFv1S6e2y5lr0
 +BVSZa30lIHCzHo3K/OOqn4nfIk+h5ZQMqu8ZQJlqkTJsEdUCN3zR7w+wy2M6Bwx
 0YZzKDpiY3kf2F6SeTcgyWbwDoSI4HkBHsD7xrCneR+PQYNBi42OZvQAXIN7A9Yy
 TCPdx6yQHC0ShZdrH4pk5Z/PJAxOYGQIXhv1N9fjaHE22jAvV1V0skRt8L97x//4
 QXnq0pn3zSMaH8V3KizWHei/TLfOulurOQpbInedQK5z7VieqKgtqJCzJaH1Bb9I
 QM2xqq5mDEQoboxU0wGx
 =CFYh
 -----END PGP SIGNATURE-----

Merge tag 'spi-v3.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "A few last minute SPI updates: fix a missized allocation and use
  atomic allocations in atomic context in the PXA driver, and fix the
  checking of return codes in the S3C64xx driver which caused spurious
  errors under heavy load."

* tag 'spi-v3.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi/pxa2xx: fix memory corruption due to wrong size used in devm_kzalloc()
  spi/pxa2xx: use GFP_ATOMIC in sg table allocation
  spi: s3c64xx: Fix pm_runtime_get_sync() return value check
2013-06-24 20:17:11 -10:00
Rojhalat Ibrahim b37e161388 powerpc/pci: Fix boot panic on mpc83xx (regression)
The following commit caused a fatal oops when booting on mpc83xx with
a non-express PCI bus (regardless of whether a PCI device is present):

commit 50d8f87d2b
Author: Rojhalat Ibrahim <imr@rtschenk.de>
Date:   Mon Apr 8 10:15:28 2013 +0200

    powerpc/fsl-pci Make PCIe hotplug work with Freescale PCIe controllers

    Up to now the PCIe link status on Freescale PCIe controllers was only
    checked once at boot time. So hotplug did not work. With this patch the
    link status is checked on every config read. PCIe devices not present at
    boot time are found after doing 'echo 1 >/sys/bus/pci/rescan'.

    Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de>
    Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

This patch fixes the issue by calling setup_indirect_pci for all device types.
fsl_indirect_read_config is now only used for booke/86xx PCIe controllers.

Reported-by: Michael Guntsche <mike@it-loops.com>
Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2013-06-24 16:54:09 -05:00
Mark Brown 332ec81d41 Merge remote-tracking branch 'spi/fix/s3c64xx' into spi-linus 2013-06-24 12:28:29 +01:00
Mark Brown 2f5a5c1be8 Merge remote-tracking branch 'spi/fix/pxa' into spi-linus 2013-06-24 12:28:28 +01:00
Michael Holzheu eda4ddf7e3 s390/ipl: Fix FCP WWPN and LUN format strings for read
The following git commit changed the behavior of sscanf:

commit 53809751ac
Author: Jan Beulich <JBeulich@suse.com>
Date:   Mon Dec 17 16:01:31 2012 -0800
    sscanf: don't ignore field widths for numeric conversions

This broke the WWPN and LUN sysfs attributes for s390 reipl and dump
on panic.

Example:

$ echo 0x0123456701234567 > /sys/firmware/reipl/fcp/wwpn
$ cat /sys/firmware/reipl/fcp/wwpn
0x0001234567012345

So fix this and use format strings that work also with the
new sscanf implementation:

$ echo 0x012345670123456789 > /sys/firmware/reipl/fcp/wwpn
$ cat /sys/firmware/reipl/fcp/wwpn
0x0123456701234567

Cc: stable@vger.kernel.org # 3.8+
Reviewed-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-06-24 11:16:34 +02:00
Randy Dunlap acdb37c361 fs: fix new splice.c kernel-doc warning
Fix new kernel-doc warning in fs/splice.c:

  Warning(fs/splice.c:1298): No description found for parameter 'opos'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-06-23 16:19:56 -10:00
Linus Torvalds e941bc0dd7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem updates from Dmitry Torokhov:
 "A few small fixups for cyttsp, wacom and xpad drivers"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: xpad - fix for "Mad Catz Street Fighter IV FightPad" controllers
  Input: wacom - add a new stylus (0x100802) for Intuos5 and Cintiqs
  Input: add missing dependencies on CONFIG_HAS_IOMEM
  Input: cyttsp - fix swapped mfg_stat and mfg_cmd registers
  Input: cyttsp - add missing handshake
  Input: cyttsp - fix memcpy size param
2013-06-23 16:12:46 -10:00
Linus Torvalds 9e895ace5d Linux 3.10-rc7 2013-06-22 09:47:31 -10:00
Linus Torvalds f3c15b0a12 ARM: SoC fixes for 3.10-rc
These are two fixes that came in this week, one for a regression we
 introduced in 3.10 in the GIC interrupt code, and the other one
 fixes a typo in newly introduced code.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIVAwUAUcR9uWCrR//JCVInAQJPOQ/7BQfqxNbQn+DkHK3I3HBYDzFgaVr4Up9N
 JXgQnjrSjdGL0B0IaBaCTx95wv7DW9vsQk0sz6Hb38OFYpI5vn/77am35AEAmOtX
 0OpFsTWM6iPiJMW0js4xWtDMDICNaFpnUWHMmO3dKMQJztvyHnzhsoWfWqlIZImV
 ml2HLeCYnFfM6vYUwTV5AHyCXMa4n7ODyIMouptCPlzIdPyTROUCBbP3obREW3AO
 RTnoOXsZnPkIrAySPtuCflGaUCKQzorvHQiQd+ye3KBbpgwwMHyl8SDKZws6Aes1
 f4P539YnuIrm7Sh418MOsKx7/Vo4c+8GxONKSX4fduX6bSlkAba7zBQUcS2FGF8C
 RzVeF4lfBCv3F/QcnDWzI0qMvbUgvYXbMH9HUv5BiNed412oUXAaPbZ7/3TpLSq+
 nsip8SY+HTo10e+k2dunBgSYk6EyP6aGoNEgS3STOlO5PAQVoy7urK7CjwLUmBrM
 IYaX/lmNWJjoWqMJtLYBVvr/n59420WO2VkmBh6OM/jKVE/ZO323AsIorGmlNmoY
 p2jtQ2q/x7rJ7PVlDgqUf18siiqyada4RwmvapmZkQwbMYppX4GPbF0KjylQO+g5
 9EH1xH9NK5GOr6JxqyMoDyl0EPOtfveie0xKPhnNVxmi6cgnmlu04HymYO9V5c7K
 1A47eYCn1pc=
 =+4ED
 -----END PGP SIGNATURE-----

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 two fixes that came in this week, one for a regression we
  introduced in 3.10 in the GIC interrupt code, and the other one fixes
  a typo in newly introduced code"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  irqchip: gic: call gic_cpu_init() as well in CPU_STARTING_FROZEN case
  ARM: dts: Correct the base address of pinctrl_3 on Exynos5250
2013-06-22 09:44:45 -10:00
Linus Torvalds e10e577185 Driver core fix for 3.10-rc7
Here's a single patch for the firmware core that resolves a reported
 oops in the firmware core that people have been hitting.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iEYEABECAAYFAlHFtG4ACgkQMUfUDdst+ymcGgCfcsj0HM+lYhuW/EFZNZ9hp/Vx
 wJQAoKOjpvkZ5fAFYcEkI+MfsorlqI8+
 =FtZ1
 -----END PGP SIGNATURE-----

Merge tag 'driver-core-3.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fix from Greg Kroah-Hartman:
 "Here's a single patch for the firmware core that resolves a reported
  oops in the firmware core that people have been hitting."

* tag 'driver-core-3.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  firmware loader: fix use-after-free by double abort
2013-06-22 09:02:44 -10:00
Linus Torvalds b71055beaa USB fixes for 3.10-rc7
Here are two USB patches for 3.10.  One updates the Kconfig wording for
 CONFIG_USB_PHY to make it, hopefully, more obvious what this option is
 (I know you complained about this when it hit the tree.)  The other is a
 new device id for a driver.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iEYEABECAAYFAlHFtA4ACgkQMUfUDdst+yk3SQCfXxifjrrW5FRaowwCZJgyxtl7
 +GsAni2/z2IPYrAoEfIHIZaP8zURlEyu
 =wce+
 -----END PGP SIGNATURE-----

Merge tag 'usb-3.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg Kroah-Hartman:
 "Here are two USB patches for 3.10.

  One updates the Kconfig wording for CONFIG_USB_PHY to make it,
  hopefully, more obvious what this option is (I know you complained
  about this when it hit the tree.) The other is a new device id for a
  driver"

* tag 'usb-3.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: serial: ti_usb_3410_5052: new device id for Abbot strip port cable
  usb: phy: Improve Kconfig help for CONFIG_USB_PHY
2013-06-22 09:01:47 -10:00
Linus Torvalds dcfdc28f30 TTY fixes for 3.10-rc7
Here are two tty core fixes that resolve some regressions that have been
 reported recently.  Both tiny fixes, but needed.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iEYEABECAAYFAlHFtMUACgkQMUfUDdst+yn7IwCfaUgbuu7fzLLhNm8faXgptLhF
 BhsAoLjaWndDUDCoo5er3OgF27V2z7ec
 =Slk/
 -----END PGP SIGNATURE-----

Merge tag 'tty-3.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pul tty fixes from Greg Kroah-Hartman:
 "Here are two tty core fixes that resolve some regressions that have
  been reported recently.  Both tiny fixes, but needed"

* tag 'tty-3.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: Fix transient pty write() EIO
  tty/vt: Return EBUSY if deallocating VT1 and it is busy
2013-06-22 09:00:28 -10:00
Linus Torvalds 67e5b2fad4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
 "Included is the recent tcm_qla2xxx residual underrun length fix from
  Roland, along with Joern's iscsi-target patch for session_lock
  breakage within iscsit_stop_time2retain_timer() code.  Both are CC'ed
  to stable.

  The remaining two are specific to recent iscsi-target + iser
  conversion changes.  One drops some left-over debug noise, and Andy's
  patch fixes configfs attribute handling during an explicit network
  portal feature bit disable when iser-target is unsupported."

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  iscsi-target: Remove left over v3.10-rc debug printks
  target/iscsi: Fix op=disable + error handling cases in np_store_iser
  tcm_qla2xxx: Fix residual for underrun commands that fail
  target/iscsi: don't corrupt bh_count in iscsit_stop_time2retain_timer()
2013-06-22 08:54:06 -10:00
Linus Torvalds 70a3067d55 Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
 "Another set of fixes for Kernel 3.10.

  This series contain:
   - two Kbuild fixes for randconfig
   - a buffer overflow when using rtl28xuu with r820t tuner
   - one clk fixup on exynos4-is driver"

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] Fix build when drivers are builtin and frontend modules
  [media] s5p makefiles: don't override other selections on obj-[ym]
  [media] exynos4-is: Fix FIMC-IS clocks initialization
  [media] rtl28xxu: fix buffer overflow when probing Rafael Micro r820t tuner
2013-06-22 08:43:17 -10:00
Linus Torvalds b8ff768b5a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
 "Several fixes for bugs caught while looking through f_pos (ab)users"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  aout32 coredump compat fix
  splice: don't pass the address of ->f_pos to methods
  mconsole: we'd better initialize pos before passing it to vfs_read()...
2013-06-22 08:42:20 -10:00
Al Viro 945fb136df aout32 coredump compat fix
dump_seek() does SEEK_CUR, not SEEK_SET; native binfmt_aout
handles it correctly (seeks by PAGE_SIZE - sizeof(struct user),
getting the current position to PAGE_SIZE), compat one seeks
by PAGE_SIZE and ends up at PAGE_SIZE + already written...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-06-22 11:01:38 +04:00
Linus Torvalds f71194a7d4 Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "This series fixes a couple of build failures, and fixes MTRR cleanup
  and memory setup on very specific memory maps.

  Finally, it fixes triggering backtraces on all CPUs, which was
  inadvertently disabled on x86."

* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/efi: Fix dummy variable buffer allocation
  x86: Fix trigger_all_cpu_backtrace() implementation
  x86: Fix section mismatch on load_ucode_ap
  x86: fix build error and kconfig for ia32_emulation and binfmt
  range: Do not add new blank slot with add_range_with_merge
  x86, mtrr: Fix original mtrr range get for mtrr_cleanup
2013-06-21 06:33:48 -10:00
Linus Torvalds e61cd5e2e3 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm radeon fixes from Dave Airlie:
 "One core fix, but mostly radeon fixes for s/r and big endian UVD
  support, and a fix to stop the GPU being reset for no good reason, and
  crashing people's machines."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon: update lockup tracking when scheduling in empty ring
  drm/prime: Honor requested file flags when exporting a buffer
  drm/radeon: fix UVD on big endian
  drm/radeon: fix write back suspend regression with uvd v2
  drm/radeon: do not try to uselessly update virtual memory pagetable
2013-06-21 06:33:06 -10:00
Linus Torvalds 64a2f30a89 ACPI fixes for 3.10-rc7
- Fix for a regression causing a failure to turn on some devices on
   some systems during initialization introduced by a recent revert of
   an ACPI PM change that broke something else.
 
 - ACPI power resources initialization fix preventing a NULL pointer
   from being dereferenced in the acpi_add_power_resource() error code
   path.
 
 - ACPI dock station driver fix that adds missing locking to
   write_undock().
 
 - ACPI resources allocation fix changing the scope of an old
   workaround so that it doesn't affect systems that aren't actually
   buggy.
 
 /
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iQIcBAABAgAGBQJRw3LNAAoJEKhOf7ml8uNskwcP/308WmvIElGA6Ty6dY/nN2il
 S9r6zC+EWeW9nsDczKL8CYBQYnBqoJ52gjk3eJRLUV7EZhqUVaYJ2tak2dbEfSQq
 6Sq1YuBNaeAQxIeWsV/xIAwWW6rPH7Mh28E5DddNGm35h8NCrudFlO5CJmA9qssq
 CbxCVSKul/jJEG3CTgDYMaqjeckXqgx9dobII/e+PAVdKoO6GM0eXcgqTiDJ6+xT
 RVZE7QaiS5rAvVzUuqveeSDJDthukoIftrC9GoREPkSeCrDTM8we1OwlhpMuHJyr
 bPb0oRgNmI328ZDnv3/uUqyGInYzp1OgOPx/beG4FmpNEw7J9ucHGyPhC/Mu9aoa
 CcRuAg1oweDtT2vzfDq0sgO8KfZLcAOkS+mhq9DyLQVgsyxLeLEIfQA1mHmfsZYr
 Y2aETzXEunGpvEOXMXBFDuK0VfdJhAfgtDHBcxg1oOnxFGDXdjNcLY9UuFAbRpE1
 GD6zIIZrU2ZJp9jX146QBddws8Ac6drH1jpByROl8RNYG5PzWoPV2KEwfx/s9NG0
 wfCtFOSBHThIStiJHkNK9ZTMI83xLgGOkx/JraRy/Vtz5bXRs2h/5WuFYt3BIiOh
 rNTqgjX7z17rYR6llBlXb296u7uJlEiUVYoVm1E5UzXUeQyvxZ9Ixi1tZ9Vz50C4
 6dTYeIvtyCxIVHyOGxn/
 =V0L1
 -----END PGP SIGNATURE-----

Merge tag 'acpi-3.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:

 - Fix for a regression causing a failure to turn on some devices on
   some systems during initialization introduced by a recent revert of
   an ACPI PM change that broke something else.  Fortunately, we know
   exactly what devices are affected, so we can add a fix just for them
   leaving everyone else alone.

 - ACPI power resources initialization fix preventing a NULL pointer
   from being dereferenced in the acpi_add_power_resource() error code
   path.

 - ACPI dock station driver fix that adds missing locking to
   write_undock().

 - ACPI resources allocation fix changing the scope of an old workaround
   so that it doesn't affect systems that aren't actually buggy.  This
   was reported a couple of days ago to fix DMA problems on some new
   platforms so we need it in -stable.  From Mika Westerberg.

* tag 'acpi-3.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / LPSS: Power up LPSS devices during enumeration
  ACPI / PM: Fix error code path for power resources initialization
  ACPI / dock: Take ACPI scan lock in write_undock()
  ACPI / resources: call acpi_get_override_irq() only for legacy IRQ resources
2013-06-21 06:31:10 -10:00
Linus Torvalds 9d0be540d7 KVM fixes for 3.10-rc6
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.13 (GNU/Linux)
 
 iQIcBAABAgAGBQJRwc4AAAoJEBvWZb6bTYbyT/wQAIAvvjM+jlqOsZCUjnutdWXf
 VGvJB1jXPEa6cuUkaE3RYO8rLLJz/PC4Geg8I/awtjeSkPvldeu0FihSkdbrNkpJ
 3dSAJ0cR8+ScUZB74Lt1pfwwEAdZk61MU1opD1qy3wWTy5Rk2xp4qzE2aCVJoLkh
 K8gscLrCHR47DELcm+AWCtHt/0VOZSAVe9z/7Qf9eAMCNmH/efHgrZZTxF/1aBkI
 7XaZdqT+d84D/Bc2isdRNvFYt9rkuII2GCeRciw2t3QsgVoBXn7FVK2OXbufIaYW
 /XX0YiNpSnUpcpOtGw2MwzpKgDSRE9QbnOUVsWThTDeG7Q5d72ioCFuRDba8p3Lc
 u146nQM495bAdJQz6IW3JCeiZlQ86/QjFquk9hJuCwQpuHmlRpVEqFbLVnZEnYvk
 lc9dnK7BcaftbMgo/j6DMv6Bpq/EDp1JrPXzNT4BwG7ptArEXzmdoktwpONjrZzI
 1oZV5xCcNhTjyqlndiZKxneKXoqz/3NOdR+EV0yh3+0l4PK6C52jd6PaKRv7qN3l
 Lt35uFrmKqzOR12KVStYREyh1Sy43ADE4tIIPnOBbcXz23Df4/vVSb1Bqv0nPq4i
 JhsRsGoR8ZdDBd7c40XlvpxOiMmubFLSklX0WaKn2yIZH9FMj63Ak0wet7qhaqb8
 lbJRUH8gnK0RCVEoUFpB
 =yGPS
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "Three one-line fixes for my first pull request; one for x86 host, one
  for x86 guest, one for PPC"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  x86: kvmclock: zero initialize pvclock shared memory area
  kvm/ppc/booke: Delay kvmppc_lazy_ee_enable
  KVM: x86: remove vcpu's CPL check in host-invoked XCR set
2013-06-21 06:29:22 -10:00
Linus Torvalds 92616ee654 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
 "This fixes an unaligned crash in XTS mode when using aseni_intel"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: aesni_intel - fix accessing of unaligned memory
2013-06-21 06:28:39 -10:00
Linus Torvalds 7ecba6f2f3 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph fix from Sage Weil:
 "This fixes a problem preventing the kernel and userland librbd
  libraries from sharing data with the new format 2 images"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: use the correct length for format 2 object names
2013-06-21 06:27:40 -10:00
H. Peter Anvin df91c3513f * Don't leak random kernel memory to EFI variable NVRAM when attempting
to initiate garbage collection. Also, free the kernel memory when
    we're done with it instead of leaking - Ben Hutchings
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.13 (GNU/Linux)
 
 iQIcBAABAgAGBQJRxCKWAAoJEC84WcCNIz1VIDcP/icYJSdXw/fKUgCG9+zAk3FE
 xivUa6aJKG+GBL4Cg2VYTJ/sBDA1v0xdFcf73amCdTcWuor6ha5LxrYFwFhhKtYk
 3O05spiCZ+F6nveZTrrxqKce3cN5XOYwbF8bZOAuJYmjaTvZQ0Cb89zf/asC4+Fx
 ui6HCRmCy6nUy5Fn4A7fBHlTyuOE4xZXvZjOUXWGiUwmZK/SbHYtN1+4nXBTnAWF
 yDcB8fkl4v7cYLIl9U8dc7Dg8ita4bj6F8RRNJf2WXipsOpMoMRtiua8VLCZ0ECc
 9cpONx7wMQS5nDEfNefWm4vdqS8PEG1CkZ8tN37nIU/AlTi6mTyTqZv0ICQfgVna
 6nChmkz9uxvzTzlMlOR5eGBu68xQLiyHhauTJBpMkwOp4q4gg/Ui+bhV7Vo9ySF3
 DlrSekT0Uo1PLgdAUYg7+hZhN98HGHoGSEx7FsymOjqlY3nF+4k7ZeTerEI4vI2D
 zqyj5QVWqS/M9zj1ojUu3nFDNhfQHO4PvVt9O8ca4/IJS1pbb/J8qtwIOFTNdJHf
 2Iyk6GnT9UaKvOs4trWXmPjiZkBcS8JdQH80fDSIgIxLhwOQksT+q90TY5h3mAED
 Hwm9JywXlxpFncPixAkpoorqDWSZmBTmUw9JR0FQNTFGuENPA0SGn51P2gGbTA+e
 82ECeWRXMMoYA/qNxMI2
 =kfTf
 -----END PGP SIGNATURE-----

Merge tag 'efi-urgent' into x86/urgent

 * Don't leak random kernel memory to EFI variable NVRAM when attempting
   to initiate garbage collection. Also, free the kernel memory when
   we're done with it instead of leaking - Ben Hutchings

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-06-21 03:01:21 -07:00
Mika Westerberg cc0ee9873c spi/pxa2xx: fix memory corruption due to wrong size used in devm_kzalloc()
ACPI part of the driver accidentally used sizeof(*ssp) instead of the
correct sizeof(*pdata). This leads to nasty memory corruptions like the one
below:

    BUG: unable to handle kernel paging request at 0000000749fd30b8
    IP: [<ffffffff813fe8a1>] __list_del_entry+0x31/0xd0
    PGD 0
    Oops: 0000 [#1] PREEMPT SMP
    Modules linked in:
    CPU: 0 PID: 30 Comm: kworker/0:1 Not tainted 3.10.0-rc6v3.10-rc6_sdhci_modprobe+ #443
    task: ffff8801483a0940 ti: ffff88014839e000 task.ti: ffff88014839e000
    RIP: 0010:[<ffffffff813fe8a1>]  [<ffffffff813fe8a1>] __list_del_entry+0x31/0xd0
    RSP: 0000:ffff88014839fde8  EFLAGS: 00010046
    RAX: ffff880149fd30b0 RBX: ffff880149fd3040 RCX: dead000000200200
    RDX: 0000000749fd30b0 RSI: ffff880149fd3058 RDI: ffff88014834d640
    RBP: ffff88014839fde8 R08: ffff88014834d640 R09: 0000000000000001
    R10: ffff8801483a0940 R11: 0000000000000001 R12: ffff880149fd3040
    R13: ffffffff810e0b30 R14: ffff8801483a0940 R15: ffff88014834d640
    FS:  0000000000000000(0000) GS:ffff880149e00000(0000) knlGS:0000000000000000
    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    CR2: 0000000000000168 CR3: 0000000001e0b000 CR4: 00000000001407f0
    DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
    Stack:
     ffff88014839fe48 ffffffff810e0baf ffffffff81120abd ffff88014839fe20
     ffff8801483a0940 ffff8801483a0940 ffff8801483a0940 ffff8801486b1c90
     ffff88014834d640 ffffffff810e0b30 0000000000000000 0000000000000000
    Call Trace:
     [<ffffffff810e0baf>] worker_thread+0x7f/0x390
     [<ffffffff81120abd>] ? trace_hardirqs_on+0xd/0x10
     [<ffffffff810e0b30>] ? manage_workers.isra.22+0x2b0/0x2b0
     [<ffffffff810e6c09>] kthread+0xd9/0xe0
     [<ffffffff810f93df>] ? local_clock+0x3f/0x50
     [<ffffffff810e6b30>] ? kthread_create_on_node+0x110/0x110
     [<ffffffff818c5dec>] ret_from_fork+0x7c/0xb0
     [<ffffffff810e6b30>] ? kthread_create_on_node+0x110/0x110

Fix this by using the right structure size in devm_kzalloc().

Reported-by: Jerome Blin <jerome.blin@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org # 3.9+
2013-06-21 10:53:37 +01:00
Ben Hutchings b8cb62f821 x86/efi: Fix dummy variable buffer allocation
1. Check for allocation failure
2. Clear the buffer contents, as they may actually be written to flash
3. Don't leak the buffer

Compile-tested only.

[ Tested successfully on my buggy ASUS machine - Matt ]

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2013-06-21 10:52:49 +01:00
Nicholas Bellinger 58807a5247 iscsi-target: Remove left over v3.10-rc debug printks
Reported-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-06-20 16:47:41 -07:00
Andy Grover 58bd0c69ff target/iscsi: Fix op=disable + error handling cases in np_store_iser
Writing 0 when iser was not previously enabled, so succeed but do
nothing so that user-space code doesn't need a try: catch block
when ib_isert logic is not available.

Also, return actual error from add_network_portal using PTR_ERR
during op=enable failure.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-06-20 16:47:32 -07:00
Dave Airlie 9aa36876dd Merge branch 'drm-fixes-3.10' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
One user visible fix to stop misreport GPU hangs and subsequent resets.
* 'drm-fixes-3.10' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: update lockup tracking when scheduling in empty ring
2013-06-21 08:52:19 +10:00
Jerome Glisse 8444d5c695 drm/radeon: update lockup tracking when scheduling in empty ring
There might be issue with lockup detection when scheduling on an
empty ring that have been sitting idle for a while. Thus update
the lockup tracking data when scheduling new work in an empty ring.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Tested-by: Andy Lutomirski <luto@amacapital.net>
Cc: stable@vger.kernel.org
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-20 14:45:08 -04:00
Linus Torvalds a3d5c3460a Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
 "Two smaller fixes - plus a context tracking tracing fix that is a bit
  bigger"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tracing/context-tracking: Add preempt_schedule_context() for tracing
  sched: Fix clear NOHZ_BALANCE_KICK
  sched/x86: Construct all sibling maps if smt
2013-06-20 08:18:35 -10:00
Linus Torvalds 86c76676cf Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Four fixes.  The mmap ones are unfortunately larger than desired -
  fuzzing uncovered bugs that needed perf context life time management
  changes to fix properly"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86: Fix broken PEBS-LL support on SNB-EP/IVB-EP
  perf: Fix mmap() accounting hole
  perf: Fix perf mmap bugs
  kprobes: Fix to free gone and unused optprobes
2013-06-20 08:17:36 -10:00
Linus Torvalds 805e318548 Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull cpu idle fixes from Thomas Gleixner:
 - Add a missing irq enable. Fallout of the idle conversion
 - Fix stackprotector wreckage caused by the idle conversion

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  idle: Enable interrupts in the weak arch_cpu_idle() implementation
  idle: Add the stack canary init to cpu_startup_entry()
2013-06-20 08:16:07 -10:00
Linus Torvalds 4db88eb4c3 Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
 - Fix inconstinant clock usage in virtual time accounting
 - Fix a build error in KVM caused by the NOHZ work
 - Remove a pointless timekeeping duty assignment which breaks NOHZ
 - Use a proper notifier return value to avoid random behaviour

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tick: Remove useless timekeeping duty attribution to broadcast source
  nohz: Fix notifier return val that enforce timekeeping
  kvm: Move guest entry/exit APIs to context_tracking
  vtime: Use consistent clocks among nohz accounting
2013-06-20 08:15:13 -10:00
Linus Torvalds 53d5defcfa Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fix fro, Benjamin Herrenschmidt:
 "We accidentally broke hugetlbfs on Freescale embedded processors which
  use a slightly different page table layout than our server processors"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Fix bad pmd error with book3E config
2013-06-20 08:08:46 -10:00
Linus Torvalds f92d0dc95d Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull tilepro fix from Chris Metcalf:
 "This change allows the older tilepro architecture to be correctly
  built by newer gccs, despite a change that caused gcc to start trying
  to use an out-of-line implementation for __builtin_ffsll().

  This should be inline again starting with gcc 4.7.4 and 4.8.2 or so,
  but meanwhile this change keeps things from breaking, with the only
  cost being a few bytes of code in the kernel to provide __ffsdi2 even
  for compilers that do inline it"

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tilepro: work around module link error with gcc 4.7
2013-06-20 08:07:42 -10:00
Linus Torvalds fd58b517e5 Perf fix (user-mode PC recording).
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.9 (GNU/Linux)
 
 iQIcBAABAgAGBQJRwxnfAAoJEGvWsS0AyF7xtTYP/jZGv5tZVdEOswJrtsAfHM1Q
 6P6E9JjZFLagnt1lKx1xmJv23wVBY+1GRi4GBOhAPhXua9xe7pxuu82EDB4gjpwj
 hSS2owe9sXGhaoGZiBClDDIDj5L6sfscJNM6tdfxdqQvGidr23b8Zo3sqspTvUdC
 EKUH6leI/Spzec3jGBLfHiF45bz0f73E38/3TRxtVNuRxmjJcTCiXLgV8xkaYNy4
 cnook8ZJa9IYDHF4o8Rf/63o0Y85cD2e1kNAxQkf28WGYD0v0HwQkBJeAYyihRjA
 Gla3E1xAGduak3fF5Lo5PjOmkhIAbd8VFZ0CAn19NaTPwLsgTVWgtNw1sgtNm+Ju
 IVTQK0OPXxpjM3TJIWTJO8sGJ1sa2fkhoD1YqS1mNFehKBHqgdY6xktAFYosBFr5
 Yjs6Cd0TRAM9XZFxuCF15u8uJ/LGe7jAofh09JdUop+eGHw1LA9+GtVTzaN0dFyx
 oRpMSC3k9fy/EA6L0hM7Gl6/JWI8mI6eOngrdV7XG27YH5NPZtI0gc8gSXJo2DtA
 urK2f8h3zRS6kNAFsL7kqxSiAWUSGdhyttD406G3XjsLd84bUmWe2wvbS0OEa0ix
 eZiM48wxdpLYq2fFQP7eetATAnif4Tpd1J4uHlAk0hFHOy/0iieJHJ2cJ/9G+tq2
 Fh/vqnHwlr4iTmfAQzrY
 =BcrY
 -----END PGP SIGNATURE-----

Merge tag 'arm64-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64

Pull arm64 perf fix from Catalin Marinas:
 "Perf fix (user-mode PC recording)"

* tag 'arm64-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  perf: arm64: Record the user-mode PC in the call chain.
2013-06-20 08:06:48 -10:00
Al Viro 7995bd2871 splice: don't pass the address of ->f_pos to methods
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-06-20 19:02:45 +04:00
Mauro Carvalho Chehab bb69ee27b9 [media] Fix build when drivers are builtin and frontend modules
There are a large number of reports that the media build is
not compiling when some drivers are compiled as builtin, while
the needed frontends are compiled as module.

On the last one of such reports:
	From: kbuild test robot <fengguang.wu@intel.com>
	Subject: saa7134-dvb.c:undefined reference to `zl10039_attach'

The .config file has:

	CONFIG_VIDEO_SAA7134=y
	CONFIG_VIDEO_SAA7134_DVB=y
	# CONFIG_MEDIA_ATTACH is not set
	CONFIG_DVB_ZL10039=m

And it produces all those errors:

   drivers/built-in.o: In function `set_type':
   tuner-core.c:(.text+0x2f263e): undefined reference to `tea5767_attach'
   tuner-core.c:(.text+0x2f273e): undefined reference to `tda9887_attach'
   drivers/built-in.o: In function `tuner_probe':
   tuner-core.c:(.text+0x2f2d20): undefined reference to `tea5767_autodetection'
   drivers/built-in.o: In function `av7110_attach':
   av7110.c:(.text+0x330bda): undefined reference to `ves1x93_attach'
   av7110.c:(.text+0x330bf7): undefined reference to `stv0299_attach'
   av7110.c:(.text+0x330c63): undefined reference to `tda8083_attach'
   av7110.c:(.text+0x330d09): undefined reference to `ves1x93_attach'
   av7110.c:(.text+0x330d33): undefined reference to `tda8083_attach'
   av7110.c:(.text+0x330d5d): undefined reference to `stv0297_attach'
   av7110.c:(.text+0x330dbe): undefined reference to `stv0299_attach'
   drivers/built-in.o: In function `tuner_attach_dtt7520x':
   ngene-cards.c:(.text+0x3381cb): undefined reference to `dvb_pll_attach'
   drivers/built-in.o: In function `demod_attach_lg330x':
   ngene-cards.c:(.text+0x33828a): undefined reference to `lgdt330x_attach'
   drivers/built-in.o: In function `demod_attach_stv0900':
   ngene-cards.c:(.text+0x3383d5): undefined reference to `stv090x_attach'
   drivers/built-in.o: In function `cineS2_probe':
   ngene-cards.c:(.text+0x338b7f): undefined reference to `drxk_attach'
   drivers/built-in.o: In function `configure_tda827x_fe':
   saa7134-dvb.c:(.text+0x346ae7): undefined reference to `tda10046_attach'
   drivers/built-in.o: In function `dvb_init':
   saa7134-dvb.c:(.text+0x347283): undefined reference to `mt352_attach'
   saa7134-dvb.c:(.text+0x3472cd): undefined reference to `mt352_attach'
   saa7134-dvb.c:(.text+0x34731c): undefined reference to `tda10046_attach'
   saa7134-dvb.c:(.text+0x34733c): undefined reference to `tda10046_attach'
   saa7134-dvb.c:(.text+0x34735c): undefined reference to `tda10046_attach'
   saa7134-dvb.c:(.text+0x347378): undefined reference to `tda10046_attach'
   saa7134-dvb.c:(.text+0x3473db): undefined reference to `tda10046_attach'
   drivers/built-in.o:saa7134-dvb.c:(.text+0x347502): more undefined references to `tda10046_attach' follow
   drivers/built-in.o: In function `dvb_init':
   saa7134-dvb.c:(.text+0x347812): undefined reference to `mt352_attach'
   saa7134-dvb.c:(.text+0x347951): undefined reference to `mt312_attach'
   saa7134-dvb.c:(.text+0x3479a9): undefined reference to `mt312_attach'
>> saa7134-dvb.c:(.text+0x3479c1): undefined reference to `zl10039_attach'

This is happening because a builtin module can't use directly a symbol
found on a module. By enabling CONFIG_MEDIA_ATTACH, the configuration
becomes valid, as dvb_attach() macro loads the module if needed, making
the symbol available to the builtin module.

While this bug started to appear after the patches that use IS_DEFINED
macro (like changeset 7b34be71db), this
bug is a way ancient than that.

The thing is that, before the IS_DEFINED() patches, the logic used to be:

       && defined(MODULE))
struct dvb_frontend *zl10039_attach(struct dvb_frontend *fe,
					u8 i2c_addr,
					struct i2c_adapter *i2c);
static inline struct dvb_frontend *zl10039_attach(struct dvb_frontend *fe,
					u8 i2c_addr,
					struct i2c_adapter *i2c)
{
	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}

The above code, with the .config file used, was evoluting to FALSE
(instead of TRUE as it should be, as CONFIG_DVB_ZL10039 is 'm'),
and were adding the static inline code at saa7134-dvb, instead
of the external call. So, while it weren't producing any compilation
error, the code weren't working either.

So, as the overhead for using CONFIG_MEDIA_ATTACH is minimal, just
enable it, if MODULES is defined.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-06-20 10:35:53 -03:00
Shawn Guo 8b6fd65264 irqchip: gic: call gic_cpu_init() as well in CPU_STARTING_FROZEN case
Commit c011470 (irqchip: gic: Perform the gic_secondary_init() call via
CPU notifier) moves gic_secondary_init() that used to be called in
.smp_secondary_init hook into a notifier call.  But it changes the
system behavior a little bit.  Before the commit, gic_cpu_init()
is called not only when kernel brings up the secondary cores but also
when system resuming procedure hot-plugs the cores back to kernel.
While after the commit, the function will not be called in the latter
case, where the 'action' will not be CPU_STARTING but
CPU_STARTING_FROZEN.  This behavior difference at least causes the
following suspend/resume regression on imx6q.

$ echo mem > /sys/power/state
PM: Syncing filesystems ... done.
PM: Preparing system for mem sleep
mmc1: card e624 removed
Freezing user space processes ... (elapsed 0.01 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
PM: Entering mem sleep
PM: suspend of devices complete after 5.930 msecs
PM: suspend devices took 0.010 seconds
PM: late suspend of devices complete after 0.343 msecs
PM: noirq suspend of devices complete after 0.828 msecs
Disabling non-boot CPUs ...
CPU1: shutdown
CPU2: shutdown
CPU3: shutdown
Enabling non-boot CPUs ...
CPU1: Booted secondary processor
INFO: rcu_sched detected stalls on CPUs/tasks: { 1 2 3} (detected by 0, t=2102 jiffies, g=4294967169, c=4294967168, q=17)
Task dump for CPU 1:
swapper/1       R running      0     0      1 0x00000000
Backtrace:
[<bf895ff4>] (0xbf895ff4) from [<00000000>] (  (null))
Backtrace aborted due to bad frame pointer <8007ccdc>
Task dump for CPU 2:
swapper/2       R running      0     0      1 0x00000000
Backtrace:
[<8075dbdc>] (0x8075dbdc) from [<00000000>] (  (null))
Backtrace aborted due to bad frame pointer <00000002>
Task dump for CPU 3:
swapper/3       R running      0     0      1 0x00000000
Backtrace:
[<8075dbdc>] (0x8075dbdc) from [<00000000>] (  (null))

Fix the regression by checking 'action' being CPU_STARTING_FROZEN to
have gic_cpu_init() called for secondary cores when system resumes.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20 14:52:23 +02:00
Michel Lespinasse b52e0a7c4e x86: Fix trigger_all_cpu_backtrace() implementation
The following change fixes the x86 implementation of
trigger_all_cpu_backtrace(), which was previously (accidentally,
as far as I can tell) disabled to always return false as on
architectures that do not implement this function.

trigger_all_cpu_backtrace(), as defined in include/linux/nmi.h,
should call arch_trigger_all_cpu_backtrace() if available, or
return false if the underlying arch doesn't implement this
function.

x86 did provide a suitable arch_trigger_all_cpu_backtrace()
implementation, but it wasn't actually being used because it was
declared in asm/nmi.h, which linux/nmi.h doesn't include. Also,
linux/nmi.h couldn't easily be fixed by including asm/nmi.h,
because that file is not available on all architectures.

I am proposing to fix this by moving the x86 definition of
arch_trigger_all_cpu_backtrace() to asm/irq.h.

Tested via: echo l > /proc/sysrq-trigger

Before the change, this uses a fallback implementation which
shows backtraces on active CPUs (using
smp_call_function_interrupt() )

After the change, this shows NMI backtraces on all CPUs

Signed-off-by: Michel Lespinasse <walken@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1370518875-1346-1-git-send-email-walken@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-20 14:00:21 +02:00