Commit Graph

400592 Commits

Author SHA1 Message Date
Nathan Fontenot
f7e3334a6b powerpc: Fix memory hotplug with sparse vmemmap
Previous commit 46723bfa540... introduced a new config option
HAVE_BOOTMEM_INFO_NODE that ended up breaking memory hot-remove for ppc
when sparse vmemmap is not defined.

This patch defines HAVE_BOOTMEM_INFO_NODE for ppc and adds the call to
register_page_bootmem_info_node. Without this we get a BUG_ON for memory
hot remove in put_page_bootmem().

This also adds a stub for register_page_bootmem_memmap to allow ppc to build
with sparse vmemmap defined. Leaving this as a stub is fine since the same
vmemmap addresses are also handled in vmemmap_populate and as such are
properly mapped.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org> [v3.9+]
2013-10-03 17:21:38 +10:00
Gleb Natapov
a2ac07fe29 Fix NULL dereference in gfn_to_hva_prot()
gfn_to_memslot() can return NULL or invalid slot. We need to check slot
validity before accessing it.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-10-03 10:08:52 +03:00
David Herrmann
29d274b8d3 x86/simplefb: Mark framebuffer mem-resources as IORESOURCE_BUSY to avoid bootup warning
IORESOURCE_BUSY is used to mark temporary driver mem-resources
instead of global regions. This suppresses warnings if regions
overlap with a region marked as BUSY.

This was always the case for VESA/VGA/EFI framebuffer regions so
do the same for simplefb regions. The reason we do this is to
allow device handover to real GPU drivers like
i915/radeon/nouveau which get the same regions via PCI BARs.

Maybe at some point we will be able to unregister platform
devices properly during the handover. In this case the simplefb
region would get removed before the new region is created.
However, this is currently not the case and would require rather
huge changes in remove_conflicting_framebuffers(). Add the BUSY
marker now and try to eventually rewrite the handover for a next release.

Also see kernel/resource.c for more information:

  /*
   * if a resource is "BUSY", it's not a hardware resource
   * but a driver mapping of such a resource; we don't want
   * to warn for those; some drivers legitimately map only
   * partial hardware resources. (example: vesafb)
   */

This suppresses warnings like:

  ------------[ cut here ]------------
  WARNING: CPU: 2 PID: 199 at arch/x86/mm/ioremap.c:171 __ioremap_caller+0x2e3/0x390()
  Info: mapping multiple BARs. Your kernel is fine.
  Call Trace:
    dump_stack+0x54/0x8d
    warn_slowpath_common+0x7d/0xa0
    warn_slowpath_fmt+0x4c/0x50
    iomem_map_sanity_check+0xac/0xe0
    __ioremap_caller+0x2e3/0x390
    ioremap_wc+0x32/0x40
    i915_driver_load+0x670/0xf50 [i915]
    ...

Reported-by: Tom Gundersen <teg@jklm.no>
Tested-by: Tom Gundersen <teg@jklm.no>
Tested-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Link: http://lkml.kernel.org/r/1380724864-1757-1-git-send-email-dh.herrmann@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-03 07:51:11 +02:00
Linus Torvalds
e6e7fb1ffc ARM: SoC fixes for 3.12-rc
We have a fairly large batch of fixes this time around, mostly just due to
 various platforms all having a fix or two more than usual.
 
 Worth pointing out are:
 
 - A fix for EDMA on Davinci/OMAP where channel allocation broke with
   the DT conversion. Due to some miscommunication we didn't
   understand the impact of the breakage, so we were pushing back on it
   for 3.12, but it sounds like it's actually breaking quite a few people
   out there.
 
 - A bunch of fixes for Marvell platforms, some straggling fixes for
   merge window fallout and some fixes for a couple of the platforms
   (Netgear RN102 in particular).
 
 - A fix for a race between multi-cluster power management and cpu hotplug
   on Versatile Express.
 
 And a bunch of other smaller fixes that all add up.
 
 We'll be switching over into stricter regressions-only mode from here
 on out.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJSTO8aAAoJEIwa5zzehBx3t/4P/jVzo0/Yvs0GtlD9tyC5uHgc
 aDvz7cjP+/w8Is2amSBr+QR/bslT7gYjyBB9cBZluH/v1juohl16jRZMxHOmoV80
 f3OfdJ7gXbKRRgrZNw9sBGWEfKrqb/Zr86CMOm51RpLizhHGXv+88DR/Rc63GgTl
 P+NBbhyL9DiL3ox7OLM7UlMafovTR0HegeypMkWghBGaIwsgjheNz1xL0/oi+6tW
 i74ehXBqoxpuHXm7UzdVD0VcQ+/GCXFo+yC0BrnGoNZG77Etq9CjpNRV3YFVZhCt
 qD9RIznRDX2bA1Mcn74bFB9H+eL4c866p/gAH8tgbwdym9KtTcqNgYTR2nL5aAHa
 OfD23lsaiy7yftPQX4bnD53bzeXJCJ+246SECK06fphS6PihYPK6iubxVL4yA5e/
 iwzqCPQ3+f9NmC4+tLoydA2xzSHtgeCQc+smYVQlyyDMtEUaCzj58GDKebUpm62X
 uMIQ8wrDRSJXURZl708UUixEvzQ6OLVgp1B3ASbedbh542qTQIpC2W8FIkYOUb6u
 S7uErba0u/UC+bxBlAYNWnBM1npT//bZgCC8LRAJ+S3HIv8OGhHStsCZfGQxbeND
 NxgPbHJPgSQu6RzaHcYSweuO38cfl6zkNcor8gf6ts3UOYnJuD+l8PLfqN13Erjm
 NUL6gyQIF4uekR4GOTdI
 =DLem
 -----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 Olof Johansson:
 "We have a fairly large batch of fixes this time around, mostly just
  due to various platforms all having a fix or two more than usual.

  Worth pointing out are:

   - A fix for EDMA on Davinci/OMAP where channel allocation broke with
     the DT conversion.  Due to some miscommunication we didn't
     understand the impact of the breakage, so we were pushing back on
     it for 3.12, but it sounds like it's actually breaking quite a few
     people out there.

   - A bunch of fixes for Marvell platforms, some straggling fixes for
     merge window fallout and some fixes for a couple of the platforms
     (Netgear RN102 in particular).

   - A fix for a race between multi-cluster power management and cpu
     hotplug on Versatile Express.

  And a bunch of other smaller fixes that all add up.

  We'll be switching over into stricter regressions-only mode from here
  on out"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
  ARM: multi_v7_defconfig: add SDHCI for i.MX
  bus: mvebu-mbus: Fix optional pcie-mem/io-aperture properties
  ARM: mvebu: add missing DT Mbus ranges and relocate PCIe DT nodes for RN102
  ARM: at91: sam9g45: shutdown ddr1 too when rebooting
  MAINTAINERS: ARM: SIRF: use kernel.org mail box
  MAINTAINERS: ARM: SIRF: add missed drivers into maintain list
  ARM: edma: Fix clearing of unused list for DT DMA resources
  ARM: vexpress: tc2: fix hotplug/idle/kexec race on cluster power down
  ARM: dts: sirf: fix interrupt and dma prop of VIP for prima2 and atlas6
  ARM: dts: sirf: fix the ranges of peri-iobrg of prima2
  ARM: dts: makefile: build atlas6-evb.dtb for ARCH_ATLAS6
  ARM: dts: sirf: fix fifosize, clks, dma channels for UART
  ARM: mvebu: Add DT entry for ReadyNAS 102 to use gpio-poweroff driver
  ARM: mvebu: fix ReadyNAS 102 Power button GPIO to make it active high
  ARM: mach-integrator: Add stub for pci_v3_early_init() for !CONFIG_PCI
  ARM: shmobile: Remove #gpio-ranges-cells DT property
  gpio: rcar: Remove #gpio-range-cells DT property usage
  ARM: shmobile: armadillo: fixup ether pinctrl naming
  ARM: shmobile: Lager: add Micrel KSZ8041 PHY fixup
  ARM: shmobile: update SDHI DT compatibility string to the <unit>-<soc> format
  ...
2013-10-02 21:48:32 -07:00
Christian Ruppert
10469350e3 ARC: Fix signal frame management for SA_SIGINFO
Previously, when a signal was registered with SA_SIGINFO, parameters 2
and 3 of the signal handler were written to registers r1 and r2 before
the register set was saved. This led to corruption of these two
registers after returning from the signal handler (the wrong values were
restored).
With this patch, registers are now saved before any parameters are
passed, thus maintaining the processor state from before signal entry.

Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-10-03 09:43:56 +05:30
Linus Torvalds
164a2c5822 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:
 "Couple of small bug fixes:

   1) strlcpy in ldom_reboot() is still not quite right, use sprintf
      instead from Kees Cook.

   2) Generic hugetlb interface pte checks should use the widest return
      type, otherwise high bits can get chopped off.

   3) Fix build with PCI MSI enabled on 32-bit sparc"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: fix MSI build failure on Sparc32
  sparc: remove deprecated IRQF_DISABLED
  mm: Fix generic hugetlb pte check return type.
  sparc: fix ldom_reboot buffer overflow harder
2013-10-02 20:58:33 -07:00
Olof Johansson
6a98b2ffc7 mvebu fixes for v3.12 (round 2)
- mvebu
     - fix ReadyNAS 102 power button (needs to be active high)
     - fix ReadyNAS 102 automated rebooting (prevent hang) by add gpio-poweroff
       node
     - fix booting ReadyNAS 102 by adding MBus ranges and PCIe DT nodes
     - mvebu-mbus: prevent PCIe driver from continuing with corrupted resource
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.20 (GNU/Linux)
 
 iQEcBAABAgAGBQJSTERhAAoJEAi3KVZQDZAeFaQH/jmhAZwvSrB7MeTTY7J9eAcl
 n4cFHImBiSb6IdDaocKB+yOmEgq/X2LS/DjK71sa0+CQsTq9B5nHxMHioogdUrG7
 S8ofIjqu90CBOZ1I5IMSPmA3uOc1B2+wYi9uLxmajMTzYVDDBEZh9LuMy/GjwzU2
 /g09RedQ3XkWDVv3pdPdEiC6KZ/gg7gejxOLv0nv9ydxr0DB8/VwmBHWFC0ghawB
 3EchoagJ3M+mAbUaxtY6cauV2nnAJOO5mV6ZHl2tIOj4/Mhn8Le/C1t+Zcdf+U82
 iAvqWmiRc3Vk96g8xXZWwZoPL7vhidLcE7dpOIZ2ymq5+g3esTaailqRxRqS9+c=
 =uNPR
 -----END PGP SIGNATURE-----

Merge tag 'fixes-3.12-2' of git://git.infradead.org/linux-mvebu into fixes

From Jason Cooper:
mvebu fixes for v3.12 (round 2)

 - mvebu
    - fix ReadyNAS 102 power button (needs to be active high)
    - fix ReadyNAS 102 automated rebooting (prevent hang) by add gpio-poweroff
      node
    - fix booting ReadyNAS 102 by adding MBus ranges and PCIe DT nodes
    - mvebu-mbus: prevent PCIe driver from continuing with corrupted resource

* tag 'fixes-3.12-2' of git://git.infradead.org/linux-mvebu:
  bus: mvebu-mbus: Fix optional pcie-mem/io-aperture properties
  ARM: mvebu: add missing DT Mbus ranges and relocate PCIe DT nodes for RN102
  ARM: mvebu: Add DT entry for ReadyNAS 102 to use gpio-poweroff driver
  ARM: mvebu: fix ReadyNAS 102 Power button GPIO to make it active high

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-02 20:55:05 -07:00
Olof Johansson
4f76d37cdb ARM: multi_v7_defconfig: add SDHCI for i.MX
Turn on SDHCI for i.MX support so machines can boot with local rootfs
on SD. Tested on a Wandboard Quad.

Signed-off-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
2013-10-02 20:54:36 -07:00
Thomas Petazzoni
a988fb806d sparc: fix MSI build failure on Sparc32
Commit ebd97be635 ('PCI: remove ARCH_SUPPORTS_MSI kconfig option')
removes the ARCH_SUPPORTS_MSI Kconfig option that allowed
architectures to indicate whether they support PCI MSI or not. Now,
PCI MSI support can be compiled in on any architecture thanks to the
use of weak functions thanks to 4287d824f2 ('PCI: use weak functions
for MSI arch-specific functions').

So, architecture specific code is now responsible to ensure that its
PCI MSI code builds in all cases, or be appropriately conditionally
compiled.

On Sparc, the MSI support is only provided for Sparc64, so the
ARCH_SUPPORTS_MSI kconfig option was only selected for SPARC64, and
not for the Sparc architecture as a whole. Therefore, removing
ARCH_SUPPORTS_MSI broke Sparc32 configurations with CONFIG_PCI_MSI=y,
because the Sparc-specific MSI code is not designed to be built on
Sparc32.

To solve this, this commit ensures that the Sparc MSI code is only
built on Sparc64. This is done thanks to a new Kconfig Makefile helper
option SPARC64_PCI_MSI, modeled after the existing SPARC64_PCI. The
SPARC64_PCI_MSI option is an hidden option that is true when both
Sparc64 PCI support is enabled and MSI is enabled. The
arch/sparc/kernel/pci_msi.c file is now only built when
SPARC64_PCI_MSI is true.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-02 20:02:35 -04:00
Michael Opdenacker
d2f09b1c17 sparc: remove deprecated IRQF_DISABLED
This patch proposes to remove the IRQF_DISABLED flag from sparc architecture
code. It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-02 20:02:35 -04:00
David Miller
2679494246 mm: Fix generic hugetlb pte check return type.
The include/asm-generic/hugetlb.h stubs that just vector huge_pte_*()
calls to the pte_*() implementations won't work in certain situations.

x86 and sparc, for example, return "unsigned long" from the bit
checks, and just go "return pte_val(pte) & PTE_BIT_FOO;"

But since huge_pte_*() returns 'int', if any high bits on 64-bit are
relevant, they get chopped off.

The net effect is that we can loop forever trying to COW a huge page,
because the huge_pte_write() check signals false all the time.

Reported-by: Gurudas Pai <gurudas.pai@oracle.com>
Tested-by: Gurudas Pai <gurudas.pai@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: David Rientjes <rientjes@google.com>
2013-10-02 20:02:35 -04:00
Kees Cook
20928bd3f0 sparc: fix ldom_reboot buffer overflow harder
The length argument to strlcpy was still wrong. It could overflow the end of
full_boot_str by 5 bytes. Instead of strcat and strlcpy, just use snprint.

Reported-by: Brad Spengler <spender@grsecurity.net>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-02 20:01:56 -04:00
Stephen Boyd
09d3ce74d7 arm64: Remove duplicate DEBUG_STACK_USAGE config
This config item already exists generically in lib/Kconfig.debug.
Remove the duplicate config in arm64.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-10-02 18:03:26 +01:00
Linus Torvalds
981d901095 Merge git://git.kvack.org/~bcrl/aio-next
Pull aio use-after-free fix from Ben LaHaise.

* git://git.kvack.org/~bcrl/aio-next:
  aio: fix use-after-free in aio_migratepage
2013-10-02 09:38:17 -07:00
Linus Torvalds
be0f52baa4 sound fixes for 3.12-rc4
All small, mostly driver-specific fixes: a few ASoC driver fixes
 (trivial stable fixes, sgtl5000 fixes), one DPCM fix, an old AC97 ID,
 and a fix for HD-audio Conexant GPIO.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.21 (GNU/Linux)
 
 iQIcBAABAgAGBQJSS/NwAAoJEGwxgFQ9KSmk3Q4P/RwWxFa8kaXouJitWfwC6eMt
 T+5nHdp3/fjQLhjjkKy7SIXKpIWk/H+qRgsWHhLybvBVK7vCQszf8FiJJOiasaTm
 mdEqgo5dWrIaaQueO9//MPy7iPRzQHUSbEoEsfRfZGcc56ITZCfO0ank/3WBfG/0
 X/G0ohW0vgULrh/LNcwIbDT00aPX0aBP+8OWfvMHGOmfW5WR9GdfZ0OXqGQtzqdy
 XVfeBMAlwmmGkD7ERquJ3oE40fN/rPiFlQSqT/gSHnW9Q6yoxE45IGheXdRSzfSb
 7rsGdns8xhjRLgxUEq0v96A5C669prG8gCMgOeIF0mJxiG55jyG6wSakuYUFczbF
 Fgh6+EZjjooVBxTF5k82ZCFOlkJBaYPWVnq+GTH8qKqavhaqgafIr2a0l6G5uzSH
 Zy8/h66O0GXKSAAxjTRf9NSPMiAerE/X3cCqSARLXMD+a2qGOOoJQJANTZ66mw05
 ePtu6KzP0D0RbEVccHRW9hJZ4vJY8r7EIWzfTpd705R0A83bAJzyunVZP/a3r9yW
 69OIB15510hGrFb3UozLiJSLNHKpB5g9xFsCBYXdiYMRbo0N3i0J882HNxbc15Ar
 SHyi3WQ/cd1EgSKtECZ80FCdc5vDzaXYrNqrDIX9+cQxxBce0M86/r8lH/XMFoeL
 jXIszWlJK+NFKzrEL9Qy
 =7zvu
 -----END PGP SIGNATURE-----

Merge tag 'sound-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "All small, mostly driver-specific fixes: a few ASoC driver fixes
  (trivial stable fixes, sgtl5000 fixes), one DPCM fix, an old AC97 ID,
  and a fix for HD-audio Conexant GPIO"

* tag 'sound-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix GPIO for Acer Aspire 3830TG
  ALSA: ac97: Add ID for TI TLV320AIC27 codec
  ASoC: imx-sgtl5000: Fix uninitialized pointer use in error path
  ASoC: imx-sgtl5000: do not use devres on a foreign device
  ASoC: blackfin: Add missing break statement to bf6xx
  ASoC: 88pm860x: array overflow in snd_soc_put_volsw_2r_st()
  ASoC: ab8500-codec: info leak in anc_status_control_put()
  ASoC: max98095: a couple array underflows
  ASoC: core: Only add platform DAI widgets once.
2013-10-02 09:36:10 -07:00
Linus Torvalds
6acf9902a2 Pin control fixes for the v3.12 series:
- Various build warning fixes.
 
 - Correct the S5P pin count.
 
 - Handle BIAS_DEFAULT properly in the Palmas driver.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.14 (GNU/Linux)
 
 iQIcBAABAgAGBQJSS9t4AAoJEEEQszewGV1ztdsP/12dV/JktKcqTRRijr2cYSQc
 +pfQ2rMBlogjTfJSOOqAeaPKA/qDLlG/WbVZW6bH87CMojsZHSbOxboqcPiqshmk
 9x+8BEcHxqjJkFcR2tPgVj/6S1ObFHD6fQ0Lv2m4MicfHpe6cUOIGevihfBV2mtR
 3n0u+uxPhZhvBYrVbaPT6kwCcLKmsWwAT7KKMXVCD7I5Wx3PsrfvEW08lw8hv/n5
 5f9IntvYga3SaLigLnHEeXVr9rXZqi4wl1FwAt3OXcT30wMIMaDxMKi990FCfech
 K5PdW+wkN6TO5cFS/PwCqWHMXpASfeLCU0Iy9S1RU4XZUGL782QUyCspj+hWuaRh
 uG9BSweF4iWRMzrHnNWIRIuNMMOArIr3XkB1xZ14dwBjZzeqBIXumiIV1XyWMcFe
 48Tvu3czCXYoMqhNtIPIsWgQafONG7f0sFoGjMqoQJ8uNy2ipTq3aKaoH620r//a
 AtCGfs/LdG/6Z/W5YKTjKzyyKoFWHhkoPzB+TVHrA4WZR5xunLol8EVWLdMUTkB+
 8Ujxw7jpy2xQye59lg9bgaG5yroteot7O09vN6TEzMj9b9/0SrzpJaE/JsqpUlCB
 r8veQuQboHqX/e3Uui4lME6SdA0UgFzBUEhX39raL6MKDuqsgX2uQOKdNS/KMNgB
 iUUMr8mtN/jhI7FEdYn8
 =k2j2
 -----END PGP SIGNATURE-----

Merge tag 'pinctrl-v3.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 - Various build warning fixes.
 - Correct the S5P pin count.
 - Handle BIAS_DEFAULT properly in the Palmas driver.

* tag 'pinctrl-v3.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: palmas: do not abort pin configuration for BIAS_DEFAULT
  pinctrl: Correct number of pins for s5pv210
  pinctrl: remove an unnecessary cast
  pinctrl: fix pinconf_dbg_config_write return type
  pinctrl: tegra114: Remove MODULE_ALIAS
2013-10-02 09:34:47 -07:00
Rafael J. Wysocki
726dcbe5f5 Merge branch 'pm-fixes'
* pm-fixes:
  intel_pstate: fix no_turbo
  cpufreq: cpufreq-cpu0: NULL is a valid regulator, part 2
  cpufreq: SPEAr: Fix incorrect variable type
  PM / hibernate: Fix user space driven resume regression
2013-10-02 18:08:56 +02:00
Rafael J. Wysocki
8a21c0e745 Merge branch 'acpi-fixes'
* acpi-fixes:
  ACPI: Use EXPORT_SYMBOL() for acpi_bus_get_device()
2013-10-02 18:08:45 +02:00
Rafael J. Wysocki
19ea1a4400 Merge branch 'pm-cpufreq-fixes' into pm-fixes
* pm-cpufreq-fixes:
  intel_pstate: fix no_turbo
  cpufreq: cpufreq-cpu0: NULL is a valid regulator, part 2
  cpufreq: SPEAr: Fix incorrect variable type
2013-10-02 18:06:29 +02:00
Yoichi Yuasa
5596b0b245 MIPS: Fix forgotten preempt_enable() when CPU has inclusive pcaches
[    1.904000] BUG: scheduling while atomic: swapper/1/0x00000002
[    1.908000] Modules linked in:
[    1.916000] CPU: 0 PID: 1 Comm: swapper Not tainted 3.12.0-rc2-lemote-los.git-5318619-dirty #1
[    1.920000] Stack : 0000000031aac000 ffffffff810d0000 0000000000000052 ffffffff802730a4
          0000000000000000 0000000000000001 ffffffff810cdf90 ffffffff810d0000
          ffffffff8068b968 ffffffff806f5537 ffffffff810cdf90 980000009f0782e8
          0000000000000001 ffffffff80720000 ffffffff806b0000 980000009f078000
          980000009f290000 ffffffff805f312c 980000009f05b5d8 ffffffff80233518
          980000009f05b5e8 ffffffff80274b7c 980000009f078000 ffffffff8068b968
          0000000000000000 0000000000000000 0000000000000000 0000000000000000
          0000000000000000 980000009f05b520 0000000000000000 ffffffff805f2f6c
          0000000000000000 ffffffff80700000 ffffffff80700000 ffffffff806fc758
          ffffffff80700000 ffffffff8020be98 ffffffff806fceb0 ffffffff805f2f6c
          ...
[    2.028000] Call Trace:
[    2.032000] [<ffffffff8020be98>] show_stack+0x80/0x98
[    2.036000] [<ffffffff805f2f6c>] __schedule_bug+0x44/0x6c
[    2.040000] [<ffffffff805fac58>] __schedule+0x518/0x5b0
[    2.044000] [<ffffffff805f8a58>] schedule_timeout+0x128/0x1f0
[    2.048000] [<ffffffff80240314>] msleep+0x3c/0x60
[    2.052000] [<ffffffff80495400>] do_probe+0x238/0x3a8
[    2.056000] [<ffffffff804958b0>] ide_probe_port+0x340/0x7e8
[    2.060000] [<ffffffff80496028>] ide_host_register+0x2d0/0x7a8
[    2.064000] [<ffffffff8049c65c>] ide_pci_init_two+0x4e4/0x790
[    2.068000] [<ffffffff8049f9b8>] amd74xx_probe+0x148/0x2c8
[    2.072000] [<ffffffff803f571c>] pci_device_probe+0xc4/0x130
[    2.076000] [<ffffffff80478f60>] driver_probe_device+0x98/0x270
[    2.080000] [<ffffffff80479298>] __driver_attach+0xe0/0xe8
[    2.084000] [<ffffffff80476ab0>] bus_for_each_dev+0x78/0xe0
[    2.088000] [<ffffffff80478468>] bus_add_driver+0x230/0x310
[    2.092000] [<ffffffff80479b44>] driver_register+0x84/0x158
[    2.096000] [<ffffffff80200504>] do_one_initcall+0x104/0x160

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: linux-mips@linux-mips.org
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Patchwork: https://patchwork.linux-mips.org/patch/5941/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-02 10:58:50 +02:00
Ingo Molnar
0d119fb576 Merge branch 'irq/urgent-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks into irq/urgent
Pull a hardirq-nesting fix from Frederic Weisbecker.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-02 07:53:01 +02:00
Tom Gundersen
e33a29a5ae x86/simplefb: Fix overflow causing bogus fall-back
On my MacBook Air lfb_size is 4M, which makes the bitshit
overflow (to 256GB - larger than 32 bits), meaning we fall
back to efifb unnecessarily.

Cast to u64 to avoid the overflow.

Signed-off-by: Tom Gundersen <teg@jklm.no>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Link: http://lkml.kernel.org/r/1380644320-1026-1-git-send-email-teg@jklm.no
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-02 07:50:40 +02:00
Nicholas Bellinger
8c7f6e9b33 target: Fall back to vzalloc upon ->sess_cmd_map kzalloc failure
This patch changes transport_alloc_session_tags() to fall back to
use vzalloc when kzalloc fails for big tag_num that end up generating
larger order allocations.

Also use is_vmalloc_addr() in transport_alloc_session_tags() failure
path, and normal transport_free_session() path to determine when
vfree() needs to be called instead of kfree().

v2 changes:
  - Use  __GFP_NOWARN | __GFP_REPEAT for sess_cmd_map kzalloc (mst)

Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Asias He <asias@redhat.com>
Cc: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-10-01 21:27:31 -07:00
Nicholas Bellinger
4a47d3a1ff vhost/scsi: Use GFP_ATOMIC with percpu_ida_alloc for obtaining tag
Fix GFP_KERNEL -> GFP_ATOMIC usage of percpu_ida_alloc() within
vhost_scsi_get_tag(), as this code is expected to be called directly
from interrupt context.

v2 changes:

  - Handle possible tag < 0 failure with GFP_ATOMIC

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Asias He <asias@redhat.com>
Cc: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-10-01 21:27:31 -07:00
Nicholas Bellinger
0b41d6ca61 ib_srpt: Destroy cm_id before destroying QP.
This patch fixes a bug where ib_destroy_cm_id() was incorrectly being called
after srpt_destroy_ch_ib() had destroyed the active QP.

This would result in the following failed SRP_LOGIN_REQ messages:

Received SRP_LOGIN_REQ with i_port_id 0x0:0x2590ffff1762bd, t_port_id 0x2c903009f8f40:0x2c903009f8f40 and it_iu_len 260 on port 1 (guid=0xfe80000000000000:0x2c903009f8f41)
Received SRP_LOGIN_REQ with i_port_id 0x0:0x2590ffff1758f9, t_port_id 0x2c903009f8f40:0x2c903009f8f40 and it_iu_len 260 on port 2 (guid=0xfe80000000000000:0x2c903009f8f42)
Received SRP_LOGIN_REQ with i_port_id 0x0:0x2590ffff175941, t_port_id 0x2c903009f8f40:0x2c903009f8f40 and it_iu_len 260 on port 2 (guid=0xfe80000000000000:0x2c90300a3cfb2)
Received SRP_LOGIN_REQ with i_port_id 0x0:0x2590ffff176299, t_port_id 0x2c903009f8f40:0x2c903009f8f40 and it_iu_len 260 on port 1 (guid=0xfe80000000000000:0x2c90300a3cfb1)
mlx4_core 0000:84:00.0: command 0x19 failed: fw status = 0x9
rejected SRP_LOGIN_REQ because creating a new RDMA channel failed.
Received SRP_LOGIN_REQ with i_port_id 0x0:0x2590ffff176299, t_port_id 0x2c903009f8f40:0x2c903009f8f40 and it_iu_len 260 on port 1 (guid=0xfe80000000000000:0x2c90300a3cfb1)
mlx4_core 0000:84:00.0: command 0x19 failed: fw status = 0x9
rejected SRP_LOGIN_REQ because creating a new RDMA channel failed.
Received SRP_LOGIN_REQ with i_port_id 0x0:0x2590ffff176299, t_port_id 0x2c903009f8f40:0x2c903009f8f40 and it_iu_len 260 on port 1 (guid=0xfe80000000000000:0x2c90300a3cfb1)

Reported-by: Navin Ahuja <navin.ahuja@saratoga-speed.com>
Cc: stable@vger.kernel.org # 3.3+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-10-01 21:27:30 -07:00
Nicholas Bellinger
3e9e01de5e target: Fix xop->dbl assignment in target_xcopy_parse_segdesc_02
This patch fixes up an incorrect assignment for xop->dbl within
target_xcopy_parse_segdesc_02() code, as reported by Coverity here:

http://marc.info/?l=linux-kernel&m=137936416618490&w=2

Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-10-01 21:27:21 -07:00
Greg Kroah-Hartman
bdd78f22ff usb: fixes for v3.12-rc4
Here are some more fixes to musb's OTG support and a regression
 caused on latest merge window; pxa25x_udc and gpio-vbus learned
 to cope with deferred probe; s3c-hsotg got a fix for non-periodic
 endpoints write size and f_fs got an error handling fix for cases
 where ffs_do_descs() fail.
 
 Signed-of-by: Felipe Balbi <balbi@ti.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJSStwTAAoJEIaOsuA1yqREpMgP/2BbaC0hCO3wA6NPul2drke2
 lb1yKU9bKhk3R0McRWhV9iJGjStpIBYLlbE66sjAvu2r53JktMysb6xPwnPwgNPK
 RabFpQnNiS/voyaAKyLq69WIPC9dfT/LwUXS4NouwTgEjPJuYs3La69NJRZlHx8A
 iFXsQtgS2h6gIKm2r71TYamgO/jYmwZsetpwOrjCz1AlTt/6wjy5ilQthHs+F0de
 iNFRsvRYyuMO2BEmqI286U7FWPK4FAO3bsqwP4EWZ7VqTLBBHqxFA3jscbeidbB4
 U6qRbekMfYCrYjYkKwuQAsFpvt6WHh8peCsWLxJ9SnyugwcXG4UwimP4qqkS6GhC
 VJpyYhE8AAHiPnXSigEFUPo3uwcylXdwg3viybezlSI/7X/NlQvhGWJZBDdSESS2
 ThieH2sFuqtk5XkG8lXySCeab/qp3NUNVVJf81G0sIjsgU2kmkTkE9913ird0kN8
 k+fkggtrK5YqbPoEIhhIdhwloyM6dxL3pLe3LHCwkyZ8Aeze8Wv1nd31OHWU1uVh
 ZjHA202MzpkHnj2gykzKS808h12S8czzIe5jTyiPPAwOz87DIxx64MqG2OGM8Rtv
 +/N+E3K/b0//Fg/GGFN2du+7SrRW4U8cAhBX9mh9j9eI2X9Yd3HclviSNM9lVTcN
 iCIY3ivMFg29aTVFIYFC
 =BQeb
 -----END PGP SIGNATURE-----

Merge tag 'fixes-for-v3.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v3.12-rc4

Here are some more fixes to musb's OTG support and a regression
caused on latest merge window; pxa25x_udc and gpio-vbus learned
to cope with deferred probe; s3c-hsotg got a fix for non-periodic
endpoints write size and f_fs got an error handling fix for cases
where ffs_do_descs() fail.

Signed-of-by: Felipe Balbi <balbi@ti.com>
2013-10-01 14:22:05 -07:00
Rafael J. Wysocki
6585925b62 ACPI: Use EXPORT_SYMBOL() for acpi_bus_get_device()
Commit caf5c03f (ACPI: Move acpi_bus_get_device() from bus.c to
scan.c) caused acpi_bus_get_device() to be exported using
EXPORT_SYMBOL_GPL(), but that broke some binary drivers in
existence, so revert that change.

Reported-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-01 23:02:43 +02:00
Srinivas Pandruvada
1ccf7a1cda intel_pstate: fix no_turbo
When sysfs for no_turbo is set, then also some p states in turbo regions
are observed. This patch will set IDA Engage bit when no_turbo is set to
explicitly disengage turbo.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-01 22:51:11 +02:00
Linus Torvalds
c31eeaced2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking changes from David Miller:

 1) Multiply in netfilter IPVS can overflow when calculating destination
    weight.  From Simon Kirby.

 2) Use after free fixes in IPVS from Julian Anastasov.

 3) SFC driver bug fixes from Daniel Pieczko.

 4) Memory leak in pcan_usb_core failure paths, from Alexey Khoroshilov.

 5) Locking and encapsulation fixes to serial line CAN driver, from
    Andrew Naujoks.

 6) Duplex and VF handling fixes to bnx2x driver from Yaniv Rosner,
    Eilon Greenstein, and Ariel Elior.

 7) In lapb, if no other packets are outstanding, T1 timeouts actually
    stall things and no packet gets sent.  Fix from Josselin Costanzi.

 8) ICMP redirects should not make it to the socket error queues, from
    Duan Jiong.

 9) Fix bugs in skge DMA mapping error handling, from Nikulas Patocka.

10) Fix setting of VLAN priority field on via-rhine driver, from Roget
    Luethi.

11) Fix TX stalls and VLAN promisc programming in be2net driver from
    Ajit Khaparde.

12) Packet padding doesn't get handled correctly in new usbnet SG
    support code, from Ming Lei.

13) Fix races in netdevice teardown wrt.  network namespace closing.
    From Eric W.  Biederman.

14) Fix potential missed initialization of net_secret if not TCP
    connections are openned.  From Eric Dumazet.

15) Cinterion PLXX product ID in qmi_wwan driver is wrong, from
    Aleksander Morgado.

16) skb_cow_head() can change skb->data and thus packet header pointers,
    don't use stale ip_hdr reference in ip_tunnel code.

17) Backend state transition handling fixes in xen-netback, from Paul
    Durrant.

18) Packet offset for AH protocol is handled wrong in flow dissector,
    from Eric Dumazet.

19) Taking down an fq packet scheduler instance can leave stale packets
    in the queues, fix from Eric Dumazet.

20) Fix performance regressions introduced by TCP Small Queues.  From
    Eric Dumazet.

21) IPV6 GRE tunneling code calculates max_headroom incorrectly, from
    Hannes Frederic Sowa.

22) Multicast timer handlers in ipv4 and ipv6 can be the last and final
    reference to the ipv4/ipv6 specific network device state, so use the
    reference put that will check and release the object if the
    reference hits zero.  From Salam Noureddine.

23) Fix memory corruption in ip_tunnel driver, and use skb_push()
    instead of __skb_push() so that similar bugs are less hard to find.
    From Steffen Klassert.

24) Add forgotten hookup of rtnl_ops in SIT and ip6tnl drivers, from
    Nicolas Dichtel.

25) fq scheduler doesn't accurately rate limit in certain circumstances,
    from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (103 commits)
  pkt_sched: fq: rate limiting improvements
  ip6tnl: allow to use rtnl ops on fb tunnel
  sit: allow to use rtnl ops on fb tunnel
  ip_tunnel: Remove double unregister of the fallback device
  ip_tunnel_core: Change __skb_push back to skb_push
  ip_tunnel: Add fallback tunnels to the hash lists
  ip_tunnel: Fix a memory corruption in ip_tunnel_xmit
  qlcnic: Fix SR-IOV configuration
  ll_temac: Reset dma descriptors indexes on ndo_open
  skbuff: size of hole is wrong in a comment
  ipv6 mcast: use in6_dev_put in timer handlers instead of __in6_dev_put
  ipv4 igmp: use in_dev_put in timer handlers instead of __in_dev_put
  ethernet: moxa: fix incorrect placement of __initdata tag
  ipv6: gre: correct calculation of max_headroom
  powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file
  Revert "powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file"
  bonding: Fix broken promiscuity reference counting issue
  tcp: TSQ can use a dynamic limit
  dm9601: fix IFF_ALLMULTI handling
  pkt_sched: fq: qdisc dismantle fixes
  ...
2013-10-01 12:58:48 -07:00
Linus Torvalds
0b936842c8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fix from David Miller:
 "Just a single bug fix to a regression added during some strlcpy()
  conversions"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Fix buggy strlcpy() conversion in ldom_reboot().
2013-10-01 12:57:59 -07:00
Linus Torvalds
517bf8fc21 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs lru leak fix from Al Viro:
 "The fix in "super: fix for destroy lrus" didn't - they need to be
  destroyed, all right, but that's the wrong place..."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs/super.c: fix lru_list leak for real
2013-10-01 10:28:11 -07:00
Linus Torvalds
77c4ad8e23 Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull two KVM fixes from Gleb Natapov.

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: VMX: do not check bit 12 of EPT violation exit qualification when undefined
  ARM: kvm: rename cpu_reset to avoid name clash
2013-10-01 10:25:10 -07:00
Al Viro
c2d22ecd3c fs/super.c: fix lru_list leak for real
Freeing ->s_{inode,dentry}_lru in deactivate_locked_super() is wrong;
the right place is destroy_super().  As it is, we leak them if sget()
decides that new superblock it has allocated (and never shown to
anybody) isn't needed and should be freed.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-10-01 13:11:21 -04:00
Jason Gunthorpe
8553bcad3e bus: mvebu-mbus: Fix optional pcie-mem/io-aperture properties
If the property was not specified then the returned resource had a
resource_size(..) == 1, rather than 0. The PCI-E driver checks for 0 so it
blindly continues on with a corrupted resource.

The regression was introduced into v3.12 by:

  11be654 PCI: mvebu: Adapt to the new device tree layout

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-10-01 17:04:17 +00:00
Eric Dumazet
0eab5eb7a3 pkt_sched: fq: rate limiting improvements
FQ rate limiting suffers from two problems, reported
by Steinar :

1) FQ enforces a delay when flow quantum is exhausted in order
to reduce cpu overhead. But if packets are small, current
delay computation is slightly wrong, and observed rates can
be too high.

Steinar had this problem because he disabled TSO and GSO,
and default FQ quantum is 2*1514.

(Of course, I wish recent TSO auto sizing changes will help
to not having to disable TSO in the first place)

2) maxrate was not used for forwarded flows (skbs not attached
to a socket)

Tested:

tc qdisc add dev eth0 root est 1sec 4sec fq maxrate 8Mbit
netperf -H lpq84 -l 1000 &
sleep 10 ; tc -s qdisc show dev eth0
qdisc fq 8003: root refcnt 32 limit 10000p flow_limit 100p buckets 1024
 quantum 3028 initial_quantum 15140 maxrate 8000Kbit
 Sent 16819357 bytes 11258 pkt (dropped 0, overlimits 0 requeues 0)
 rate 7831Kbit 653pps backlog 7570b 5p requeues 0
  44 flows (43 inactive, 1 throttled), next packet delay 2977352 ns
  0 gc, 0 highprio, 5545 throttled

lpq83:~# tcpdump -p -i eth0 host lpq84 -c 12
09:02:52.079484 IP lpq83 > lpq84: . 1389536928:1389538376(1448) ack 3808678021 win 457 <nop,nop,timestamp 961812 572609068>
09:02:52.079499 IP lpq83 > lpq84: . 1448:2896(1448) ack 1 win 457 <nop,nop,timestamp 961812 572609068>
09:02:52.079906 IP lpq84 > lpq83: . ack 2896 win 16384 <nop,nop,timestamp 572609080 961812>
09:02:52.082568 IP lpq83 > lpq84: . 2896:4344(1448) ack 1 win 457 <nop,nop,timestamp 961815 572609071>
09:02:52.082581 IP lpq83 > lpq84: . 4344:5792(1448) ack 1 win 457 <nop,nop,timestamp 961815 572609071>
09:02:52.083017 IP lpq84 > lpq83: . ack 5792 win 16384 <nop,nop,timestamp 572609083 961815>
09:02:52.085678 IP lpq83 > lpq84: . 5792:7240(1448) ack 1 win 457 <nop,nop,timestamp 961818 572609074>
09:02:52.085693 IP lpq83 > lpq84: . 7240:8688(1448) ack 1 win 457 <nop,nop,timestamp 961818 572609074>
09:02:52.086117 IP lpq84 > lpq83: . ack 8688 win 16384 <nop,nop,timestamp 572609086 961818>
09:02:52.088792 IP lpq83 > lpq84: . 8688:10136(1448) ack 1 win 457 <nop,nop,timestamp 961821 572609077>
09:02:52.088806 IP lpq83 > lpq84: . 10136:11584(1448) ack 1 win 457 <nop,nop,timestamp 961821 572609077>
09:02:52.089217 IP lpq84 > lpq83: . ack 11584 win 16384 <nop,nop,timestamp 572609090 961821>

Reported-by: Steinar H. Gunderson <sesse@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 13:00:38 -04:00
Nicolas Dichtel
bb8140947a ip6tnl: allow to use rtnl ops on fb tunnel
rtnl ops where introduced by c075b13098 ("ip6tnl: advertise tunnel param via
rtnl"), but I forget to assign rtnl ops to fb tunnels.

Now that it is done, we must remove the explicit call to
unregister_netdevice_queue(), because  the fallback tunnel is added to the queue
in ip6_tnl_destroy_tunnels() when checking rtnl_link_ops of all netdevices (this
is valid since commit 0bd8762824 ("ip6tnl: add x-netns support")).

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:55:53 -04:00
Nicolas Dichtel
205983c437 sit: allow to use rtnl ops on fb tunnel
rtnl ops where introduced by ba3e3f50a0 ("sit: advertise tunnel param via
rtnl"), but I forget to assign rtnl ops to fb tunnels.

Now that it is done, we must remove the explicit call to
unregister_netdevice_queue(), because  the fallback tunnel is added to the queue
in sit_destroy_tunnels() when checking rtnl_link_ops of all netdevices (this
is valid since commit 5e6700b3bf ("sit: add support of x-netns")).

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:55:53 -04:00
David S. Miller
9cb1712468 Merge branch 'ip_tunnel'
ip_tunnel bug fixes from Steffen Klassert.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:42:28 -04:00
Steffen Klassert
cfe4a53692 ip_tunnel: Remove double unregister of the fallback device
When queueing the netdevices for removal, we queue the
fallback device twice in ip_tunnel_destroy(). The first
time when we queue all netdevices in the namespace and
then again explicitly. Fix this by removing the explicit
queueing of the fallback device.

Bug was introduced when network namespace support was added
with commit 6c742e714d ("ipip: add x-netns support").

Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:42:16 -04:00
Steffen Klassert
78a3694d44 ip_tunnel_core: Change __skb_push back to skb_push
Git commit 0e6fbc5b ("ip_tunnels: extend iptunnel_xmit()")
moved the IP header installation to iptunnel_xmit() and
changed skb_push() to __skb_push(). This makes possible
bugs hard to track down, so change it back to skb_push().

Cc: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:42:16 -04:00
Steffen Klassert
6701328262 ip_tunnel: Add fallback tunnels to the hash lists
Currently we can not update the tunnel parameters of
the fallback tunnels because we don't find them in the
hash lists. Fix this by adding them on initialization.

Bug was introduced with commit c544193214
("GRE: Refactor GRE tunneling code.")

Cc: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:42:16 -04:00
Steffen Klassert
3e08f4a72f ip_tunnel: Fix a memory corruption in ip_tunnel_xmit
We might extend the used aera of a skb beyond the total
headroom when we install the ipip header. Fix this by
calling skb_cow_head() unconditionally.

Bug was introduced with commit c544193214
("GRE: Refactor GRE tunneling code.")

Cc: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:42:16 -04:00
David S. Miller
e024bdc051 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
The following patchset contains Netfilter/IPVS fixes for your net
tree, they are:

* Fix BUG_ON splat due to malformed TCP packets seen by synproxy, from
  Patrick McHardy.

* Fix possible weight overflow in lblc and lblcr schedulers due to
  32-bits arithmetics, from Simon Kirby.

* Fix possible memory access race in the lblc and lblcr schedulers,
  introduced when it was converted to use RCU, two patches from
  Julian Anastasov.

* Fix hard dependency on CPU 0 when reading per-cpu stats in the
  rate estimator, from Julian Anastasov.

* Fix race that may lead to object use after release, when invoking
  ipvsadm -C && ipvsadm -R, introduced when adding RCU, from Julian
  Anastasov.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:39:35 -04:00
Manish Chopra
1ed98ed55d qlcnic: Fix SR-IOV configuration
o Interface needs to be brought down and up while configuring SR-IOV.
  Protect interface up/down using rtnl_lock()/rtnl_unlock()

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:34:59 -04:00
Ricardo Ribalda
7167cf0e8c ll_temac: Reset dma descriptors indexes on ndo_open
The dma descriptors indexes are only initialized on the probe function.

If a packet is on the buffer when temac_stop is called, the dma
descriptors indexes can be left on a incorrect state where no other
package can be sent.

So an interface could be left in an usable state after ifdow/ifup.

This patch makes sure that the descriptors indexes are in a proper
status when the device is open.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:31:35 -04:00
Miklos Szeredi
698fa1d163 fuse: no RCU mode in fuse_access()
fuse_access() is never called in RCU walk, only on the final component of
access(2) and chdir(2)...

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2013-10-01 16:41:23 +02:00
Miklos Szeredi
6314efee3c fuse: readdirplus: fix RCU walk
Doing dput(parent) is not valid in RCU walk mode.  In RCU mode it would
probably be okay to update the parent flags, but it's actually not
necessary most of the time...

So only set the FUSE_I_ADVISE_RDPLUS flag on the parent when the entry was
recently initialized by READDIRPLUS.

This is achieved by setting FUSE_I_INIT_RDPLUS on entries added by
READDIRPLUS and only dropping out of RCU mode if this flag is set.
FUSE_I_INIT_RDPLUS is cleared once the FUSE_I_ADVISE_RDPLUS flag is set in
the parent.

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: stable@vger.kernel.org
2013-10-01 16:41:22 +02:00
Miklos Szeredi
3c70b8eeda fuse: don't check_submounts_and_drop() in RCU walk
If revalidate finds an invalid dentry in RCU walk mode, let the VFS deal
with it instead of calling check_submounts_and_drop() which is not prepared
for being called from RCU walk.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: stable@vger.kernel.org
2013-10-01 16:41:22 +02:00
Robert Baldyga
b377216bd2 usb: gadget: s3c-hsotg: fix can_write limit for non-periodic endpoints
Value of can_write variable in s3c_hsotg_write_fifo function should be limited
to 512 only for non-periodic endpoints. There was some discrepancy between
comment and code, because comment suggests correct behavior, but in the code
limit was applied to periodic endpoints too. So there is additional check
causing the limitation concerns only non-periodic endpoints.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-10-01 09:24:14 -05:00