Commit Graph

342165 Commits

Author SHA1 Message Date
Eric Dumazet 499744209b tuntap: dont use skb after netif_rx_ni(skb)
On Wed, 2012-12-12 at 23:16 -0500, Dave Jones wrote:
> Since todays net merge, I see this when I start openvpn..
>
> general protection fault: 0000 [#1] PREEMPT SMP
> Modules linked in: ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_conntrack nf_conntrack ip6table_filter ip6_tables xfs iTCO_wdt iTCO_vendor_support snd_emu10k1 snd_util_mem snd_ac97_codec coretemp ac97_bus microcode snd_hwdep snd_seq pcspkr snd_pcm snd_page_alloc snd_timer lpc_ich i2c_i801 snd_rawmidi mfd_core snd_seq_device snd e1000e soundcore emu10k1_gp gameport i82975x_edac edac_core vhost_net tun macvtap macvlan kvm_intel kvm binfmt_misc nfsd auth_rpcgss nfs_acl lockd sunrpc btrfs libcrc32c zlib_deflate firewire_ohci sata_sil firewire_core crc_itu_t radeon i2c_algo_bit drm_kms_helper ttm drm i2c_core floppy
> CPU 0
> Pid: 1381, comm: openvpn Not tainted 3.7.0+ #14                  /D975XBX
> RIP: 0010:[<ffffffff815b54a4>]  [<ffffffff815b54a4>] skb_flow_dissect+0x314/0x3e0
> RSP: 0018:ffff88007d0d9c48  EFLAGS: 00010206
> RAX: 000000000000055d RBX: 6b6b6b6b6b6b6b4b RCX: 1471030a0180040a
> RDX: 0000000000000005 RSI: 00000000ffffffe0 RDI: ffff8800ba83fa80
> RBP: ffff88007d0d9cb8 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000101 R12: ffff8800ba83fa80
> R13: 0000000000000008 R14: ffff88007d0d9cc8 R15: ffff8800ba83fa80
> FS:  00007f6637104800(0000) GS:ffff8800bf600000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00007f563f5b01c4 CR3: 000000007d140000 CR4: 00000000000007f0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Process openvpn (pid: 1381, threadinfo ffff88007d0d8000, task ffff8800a540cd60)
> Stack:
>  ffff8800ba83fa80 0000000000000296 0000000000000000 0000000000000000
>  ffff88007d0d9cc8 ffffffff815bcff4 ffff88007d0d9ce8 ffffffff815b1831
>  ffff88007d0d9ca8 00000000703f6364 ffff8800ba83fa80 0000000000000000
> Call Trace:
>  [<ffffffff815bcff4>] ? netif_rx+0x114/0x4c0
>  [<ffffffff815b1831>] ? skb_copy_datagram_from_iovec+0x61/0x290
>  [<ffffffff815b672a>] __skb_get_rxhash+0x1a/0xd0
>  [<ffffffffa03b9538>] tun_get_user+0x418/0x810 [tun]
>  [<ffffffff8135f468>] ? delay_tsc+0x98/0xf0
>  [<ffffffff8109605c>] ? __rcu_read_unlock+0x5c/0xa0
>  [<ffffffffa03b9a41>] tun_chr_aio_write+0x81/0xb0 [tun]
>  [<ffffffff81145011>] ? __buffer_unlock_commit+0x41/0x50
>  [<ffffffff811db917>] do_sync_write+0xa7/0xe0
>  [<ffffffff811dc01f>] vfs_write+0xaf/0x190
>  [<ffffffff811dc375>] sys_write+0x55/0xa0
>  [<ffffffff81705540>] tracesys+0xdd/0xe2
> Code: 41 8b 44 24 68 41 2b 44 24 6c 01 de 29 f0 83 f8 03 0f 8e a0 00 00 00 48 63 de 49 03 9c 24 e0 00 00 00 48 85 db 0f 84 72 fe ff ff <8b> 03 41 89 46 08 b8 01 00 00 00 e9 43 fd ff ff 0f 1f 40 00 48
> RIP  [<ffffffff815b54a4>] skb_flow_dissect+0x314/0x3e0
>  RSP <ffff88007d0d9c48>
> ---[ end trace 6d42c834c72c002e ]---
>
>
> Faulting instruction is
>
>    0:	8b 03                	mov    (%rbx),%eax
>
> rbx is slab poison (-20) so this looks like a use-after-free here...
>
>                         flow->ports = *ports;
>  314:   8b 03                   mov    (%rbx),%eax
>  316:   41 89 46 08             mov    %eax,0x8(%r14)
>
> in the inlined skb_header_pointer in skb_flow_dissect
>
> 	Dave
>

commit 96442e4242 (tuntap: choose the txq based on rxq) added
a use after free.

Cache rxhash in a temp variable before calling netif_rx_ni()

Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jason Wang <jasowang@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-13 12:58:11 -05:00
Dave Jones 026e43def7 nfc: remove noisy message from llcp_sock_sendmsg
This is easily triggerable when fuzz-testing as an unprivileged user.
We could rate-limit it, but given we don't print similar messages
for other protocols, I just removed it.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-13 12:58:10 -05:00
Linus Torvalds 6be35c700f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking changes from David Miller:

1) Allow to dump, monitor, and change the bridge multicast database
   using netlink.  From Cong Wang.

2) RFC 5961 TCP blind data injection attack mitigation, from Eric
   Dumazet.

3) Networking user namespace support from Eric W. Biederman.

4) tuntap/virtio-net multiqueue support by Jason Wang.

5) Support for checksum offload of encapsulated packets (basically,
   tunneled traffic can still be checksummed by HW).  From Joseph
   Gasparakis.

6) Allow BPF filter access to VLAN tags, from Eric Dumazet and
   Daniel Borkmann.

7) Bridge port parameters over netlink and BPDU blocking support
   from Stephen Hemminger.

8) Improve data access patterns during inet socket demux by rearranging
   socket layout, from Eric Dumazet.

9) TIPC protocol updates and cleanups from Ying Xue, Paul Gortmaker, and
   Jon Maloy.

10) Update TCP socket hash sizing to be more in line with current day
    realities.  The existing heurstics were choosen a decade ago.
    From Eric Dumazet.

11) Fix races, queue bloat, and excessive wakeups in ATM and
    associated drivers, from Krzysztof Mazur and David Woodhouse.

12) Support DOVE (Distributed Overlay Virtual Ethernet) extensions
    in VXLAN driver, from David Stevens.

13) Add "oops_only" mode to netconsole, from Amerigo Wang.

14) Support set and query of VEB/VEPA bridge mode via PF_BRIDGE, also
    allow DCB netlink to work on namespaces other than the initial
    namespace.  From John Fastabend.

15) Support PTP in the Tigon3 driver, from Matt Carlson.

16) tun/vhost zero copy fixes and improvements, plus turn it on
    by default, from Michael S. Tsirkin.

17) Support per-association statistics in SCTP, from Michele
    Baldessari.

And many, many, driver updates, cleanups, and improvements.  Too
numerous to mention individually.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
  net/mlx4_en: Add support for destination MAC in steering rules
  net/mlx4_en: Use generic etherdevice.h functions.
  net: ethtool: Add destination MAC address to flow steering API
  bridge: add support of adding and deleting mdb entries
  bridge: notify mdb changes via netlink
  ndisc: Unexport ndisc_{build,send}_skb().
  uapi: add missing netconf.h to export list
  pkt_sched: avoid requeues if possible
  solos-pci: fix double-free of TX skb in DMA mode
  bnx2: Fix accidental reversions.
  bna: Driver Version Updated to 3.1.2.1
  bna: Firmware update
  bna: Add RX State
  bna: Rx Page Based Allocation
  bna: TX Intr Coalescing Fix
  bna: Tx and Rx Optimizations
  bna: Code Cleanup and Enhancements
  ath9k: check pdata variable before dereferencing it
  ath5k: RX timestamp is reported at end of frame
  ath9k_htc: RX timestamp is reported at end of frame
  ...
2012-12-12 18:07:07 -08:00
Linus Torvalds e37aa63e87 MN10300 changes 2012-12-12
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Merge tag 'for-linus-20121212' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-mn10300

Pull MN10300 changes from David Howells:
 "miscellaneous MN10300 arch patches.  I've based it on top of Al Viro's
  signal tree - so these patches should be pulled after that."

* tag 'for-linus-20121212' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-mn10300:
  MN10300: Use asm-generic/pci_iomap.h
  MN10300: Get rid of unused variable from ASB2305 PCI code
  MN10300: ASB2305 PCI code needs linux/irq.h
  mn10300/mm/fault.c: Port OOM changes to do_page_fault
  MN10300: Handle cacheable PCI regions in pci_iomap()
  MN10300: fix debug polling in ttySM driver
  MN10300: ttySM: clean up unnecessary casting
  MN10300: fix SMP synchronization between txdma and serial driver
  MN10300: fix serial port vdma irq setup for SMP
  MN10300: cleanup IRQ affinity setting
  MN10300: ttySM: Use memory barriers correctly in circular buffer logic
2012-12-12 17:50:34 -08:00
Linus Torvalds 9977d9b379 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull big execve/kernel_thread/fork unification series from Al Viro:
 "All architectures are converted to new model.  Quite a bit of that
  stuff is actually shared with architecture trees; in such cases it's
  literally shared branch pulled by both, not a cherry-pick.

  A lot of ugliness and black magic is gone (-3KLoC total in this one):

   - kernel_thread()/kernel_execve()/sys_execve() redesign.

     We don't do syscalls from kernel anymore for either kernel_thread()
     or kernel_execve():

     kernel_thread() is essentially clone(2) with callback run before we
     return to userland, the callbacks either never return or do
     successful do_execve() before returning.

     kernel_execve() is a wrapper for do_execve() - it doesn't need to
     do transition to user mode anymore.

     As a result kernel_thread() and kernel_execve() are
     arch-independent now - they live in kernel/fork.c and fs/exec.c
     resp.  sys_execve() is also in fs/exec.c and it's completely
     architecture-independent.

   - daemonize() is gone, along with its parts in fs/*.c

   - struct pt_regs * is no longer passed to do_fork/copy_process/
     copy_thread/do_execve/search_binary_handler/->load_binary/do_coredump.

   - sys_fork()/sys_vfork()/sys_clone() unified; some architectures
     still need wrappers (ones with callee-saved registers not saved in
     pt_regs on syscall entry), but the main part of those suckers is in
     kernel/fork.c now."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (113 commits)
  do_coredump(): get rid of pt_regs argument
  print_fatal_signal(): get rid of pt_regs argument
  ptrace_signal(): get rid of unused arguments
  get rid of ptrace_signal_deliver() arguments
  new helper: signal_pt_regs()
  unify default ptrace_signal_deliver
  flagday: kill pt_regs argument of do_fork()
  death to idle_regs()
  don't pass regs to copy_process()
  flagday: don't pass regs to copy_thread()
  bfin: switch to generic vfork, get rid of pointless wrappers
  xtensa: switch to generic clone()
  openrisc: switch to use of generic fork and clone
  unicore32: switch to generic clone(2)
  score: switch to generic fork/vfork/clone
  c6x: sanitize copy_thread(), get rid of clone(2) wrapper, switch to generic clone()
  take sys_fork/sys_vfork/sys_clone prototypes to linux/syscalls.h
  mn10300: switch to generic fork/vfork/clone
  h8300: switch to generic fork/vfork/clone
  tile: switch to generic clone()
  ...

Conflicts:
	arch/microblaze/include/asm/Kbuild
2012-12-12 12:22:13 -08:00
Linus Torvalds cf4af01221 ARM: arm-soc: Board updates for 3.8
This branch contains a set of various board updates for ARM platforms.
 
 A few shmobile platforms that are stale have been removed, some
 defconfig updates for various boards selecting new features such as
 pinctrl subsystem support, and various updates enabling peripherals, etc.
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Merge tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC board updates from Olof Johansson:
 "This branch contains a set of various board updates for ARM platforms.

  A few shmobile platforms that are stale have been removed, some
  defconfig updates for various boards selecting new features such as
  pinctrl subsystem support, and various updates enabling peripherals,
  etc."

Fix up conflicts mostly as per Olof.

* tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (58 commits)
  ARM: S3C64XX: Add dummy supplies for Glenfarclas LDOs
  ARM: S3C64XX: Add registration of WM2200 Bells device on Cragganmore
  ARM: kirkwood: Add Plat'Home OpenBlocks A6 support
  ARM: Dove: update defconfig
  ARM: Kirkwood: update defconfig for new boards
  arm: orion5x: add DT related options in defconfig
  arm: orion5x: convert 'LaCie Ethernet Disk mini v2' to Device Tree
  arm: orion5x: basic Device Tree support
  arm: orion5x: mechanical defconfig update
  ARM: kirkwood: Add support for the MPL CEC4
  arm: kirkwood: add support for ZyXEL NSA310
  ARM: Kirkwood: new board USI Topkick
  ARM: kirkwood: use gpio-fan DT binding on lsxl
  ARM: Kirkwood: add Netspace boards to defconfig
  ARM: kirkwood: DT board setup for Network Space Mini v2
  ARM: kirkwood: DT board setup for Network Space Lite v2
  ARM: kirkwood: DT board setup for Network Space v2 and parents
  leds: leds-ns2: add device tree binding
  ARM: Kirkwood: Enable the second I2C bus
  ARM: mmp: select pinctrl driver
  ...
2012-12-12 12:14:06 -08:00
Linus Torvalds d027db132b ARM: arm-soc: SoC updates for 3.8
This contains the bulk of new SoC development for this merge window.
 
 Two new platforms have been added, the sunxi platforms (Allwinner A1x
 SoCs) by Maxime Ripard, and a generic Broadcom platform for a new
 series of ARMv7 platforms from them, where the hope is that we can
 keep the platform code generic enough to have them all share one mach
 directory. The new Broadcom platform is contributed by Christian Daudt.
 
 Highbank has grown support for Calxeda's next generation of hardware,
 ECX-2000.
 
 clps711x has seen a lot of cleanup from Alexander Shiyan, and he's also
 taken on maintainership of the platform.
 
 Beyond this there has been a bunch of work from a number of people on
 converting more platforms to IRQ domains, pinctrl conversion, cleanup
 and general feature enablement across most of the active platforms.
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Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC updates from Olof Johansson:
 "This contains the bulk of new SoC development for this merge window.

  Two new platforms have been added, the sunxi platforms (Allwinner A1x
  SoCs) by Maxime Ripard, and a generic Broadcom platform for a new
  series of ARMv7 platforms from them, where the hope is that we can
  keep the platform code generic enough to have them all share one mach
  directory.  The new Broadcom platform is contributed by Christian
  Daudt.

  Highbank has grown support for Calxeda's next generation of hardware,
  ECX-2000.

  clps711x has seen a lot of cleanup from Alexander Shiyan, and he's
  also taken on maintainership of the platform.

  Beyond this there has been a bunch of work from a number of people on
  converting more platforms to IRQ domains, pinctrl conversion, cleanup
  and general feature enablement across most of the active platforms."

Fix up trivial conflicts as per Olof.

* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (174 commits)
  mfd: vexpress-sysreg: Remove LEDs code
  irqchip: irq-sunxi: Add terminating entry for sunxi_irq_dt_ids
  clocksource: sunxi_timer: Add terminating entry for sunxi_timer_dt_ids
  irq: versatile: delete dangling variable
  ARM: sunxi: add missing include for mdelay()
  ARM: EXYNOS: Avoid early use of of_machine_is_compatible()
  ARM: dts: add node for PL330 MDMA1 controller for exynos4
  ARM: EXYNOS: Add support for secondary CPU bring-up on Exynos4412
  ARM: EXYNOS: add UART3 to DEBUG_LL ports
  ARM: S3C24XX: Add clkdev entry for camif-upll clock
  ARM: SAMSUNG: Add s3c24xx/s3c64xx CAMIF GPIO setup helpers
  ARM: sunxi: Add missing sun4i.dtsi file
  pinctrl: samsung: Do not initialise statics to 0
  ARM i.MX6: remove gate_mask from pllv3
  ARM i.MX6: Fix ethernet PLL clocks
  ARM i.MX6: rename PLLs according to datasheet
  ARM i.MX6: Add pwm support
  ARM i.MX51: Add pwm support
  ARM i.MX53: Add pwm support
  ARM: mx5: Replace clk_register_clkdev with clock DT lookup
  ...
2012-12-12 12:05:15 -08:00
Linus Torvalds d01e4afdbb ARM: arm-soc: Cleanups on various subarchitectures
Cleanup patches for various ARM platforms and some of their associated
 drivers. There's also a branch in here that enables Freescale i.MX to be
 part of the multiplatform support -- the first "big" SoC that is moved
 over (more multiplatform work comes in a separate branch later during
 the merge window).
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups on various subarchitectures from Olof Johansson:
 "Cleanup patches for various ARM platforms and some of their associated
  drivers.  There's also a branch in here that enables Freescale i.MX to
  be part of the multiplatform support -- the first "big" SoC that is
  moved over (more multiplatform work comes in a separate branch later
  during the merge window)."

Conflicts fixed as per Olof, including a silent semantic one in
arch/arm/mach-omap2/board-generic.c (omap_prcm_restart() was renamed to
omap3xxx_restart(), and a new user of the old name was added).

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (189 commits)
  ARM: omap: fix typo on timer cleanup
  ARM: EXYNOS: Remove unused regs-mem.h file
  ARM: EXYNOS: Remove unused non-dt support for dwmci controller
  ARM: Kirkwood: Use hw_pci.ops instead of hw_pci.scan
  ARM: OMAP3: cm-t3517: use GPTIMER for system clock
  ARM: OMAP2+: timer: remove CONFIG_OMAP_32K_TIMER
  ARM: SAMSUNG: use devm_ functions for ADC driver
  ARM: EXYNOS: no duplicate mask/unmask in eint0_15
  ARM: S3C24XX: SPI clock channel setup is fixed for S3C2443
  ARM: EXYNOS: Remove i2c0 resource information and setting of device names
  ARM: Kirkwood: checkpatch cleanups
  ARM: Kirkwood: Fix sparse warnings.
  ARM: Kirkwood: Remove unused includes
  ARM: kirkwood: cleanup lsxl board includes
  ARM: integrator: use BUG_ON where possible
  ARM: integrator: push down SC dependencies
  ARM: integrator: delete static UART1 mapping
  ARM: integrator: delete SC mapping on the CP
  ARM: integrator: remove static CP syscon mapping
  ARM: integrator: remove static AP syscon mapping
  ...
2012-12-12 11:51:39 -08:00
Linus Torvalds 8287361abc ARM: arm-soc: Header cleanups
This is a collection of header file cleanups, mostly for OMAP and AT91,
 that keeps moving the platforms in the direction of multiplatform by
 removing the need for mach-dependent header files used in drivers and
 other places.
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Merge tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC Header cleanups from Olof Johansson:
 "This is a collection of header file cleanups, mostly for OMAP and
  AT91, that keeps moving the platforms in the direction of
  multiplatform by removing the need for mach-dependent header files
  used in drivers and other places."

Fix up mostly trivial conflicts as per Olof.

* tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (106 commits)
  ARM: OMAP2+: Move iommu/iovmm headers to platform_data
  ARM: OMAP2+: Make some definitions local
  ARM: OMAP2+: Move iommu2 to drivers/iommu/omap-iommu2.c
  ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h
  ARM: OMAP2+: Move iopgtable header to drivers/iommu/
  ARM: OMAP: Merge iommu2.h into iommu.h
  atmel: move ATMEL_MAX_UART to platform_data/atmel.h
  ARM: OMAP: Remove omap_init_consistent_dma_size()
  arm: at91: move at91rm9200 rtc header in drivers/rtc
  arm: at91: move reset controller header to arm/arm/mach-at91
  arm: at91: move pit define to the driver
  arm: at91: move at91_shdwc.h to arch/arm/mach-at91
  arm: at91: move board header to arch/arm/mach-at91
  arn: at91: move at91_tc.h to arch/arm/mach-at91
  arm: at91 move at91_aic.h to arch/arm/mach-at91
  arm: at91 move board.h to arch/arm/mach-at91
  arm: at91: move platfarm_data to include/linux/platform_data/atmel.h
  arm: at91: drop machine defconfig
  ARM: OMAP: Remove NEED_MACH_GPIO_H
  ARM: OMAP: Remove unnecessary mach and plat includes
  ...
2012-12-12 11:45:16 -08:00
Linus Torvalds 2989950cea ARM: arm-soc: Non-critical bug fixes
Simple bug fixes that were not considered important enough for inclusion
 into 3.7, especially those that arrived late during the merge window.
 
 There's also a MAINTAINERS update for the Renesas platforms in here,
 marking Simon Horman as a maintainer and changing the git url to his tree.
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Merge tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC Non-critical bug fixes from Olof Johansson:
 "Simple bug fixes that were not considered important enough for
  inclusion into 3.7, especially those that arrived late during the
  merge window.

  There's also a MAINTAINERS update for the Renesas platforms in here,
  marking Simon Horman as a maintainer and changing the git url to his
  tree."

* tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  Update ARM/SHMOBILE section of MAINTAINERS
  ARM: Fix Kconfig symbols typo for LEDS
  ARM: pxa: add dummy SA1100 rtc clock in pxa25x
  ARM: pxa: fix pxa25x gpio wakeup setting
  ARM: OMAP4: PM: fix errata handling when CONFIG_PM=n
  ARM: cns3xxx: drop unnecessary symbol selection
  ARM: vexpress: fix ll debug code when building multiplatform
  ARM: OMAP4: retrigger localtimers after re-enabling gic
  ARM: OMAP4460: Workaround for ROM bug because of CA9 r2pX GIC control register change.
  ARM: OMAP4: PM: add errata support
  ARM: davinci: fix return value check by using IS_ERR in tnetv107x_devices_init()
  ARM: davinci: uncompress.h: bail out if uart not initialized
  ARM: davinci: serial.h: fix uart number in the comment
  ARM: davinci: dm644x evm: move pointer dereference below NULL check
  ARM: vexpress: Make the debug UART detection more specific
2012-12-12 11:32:16 -08:00
Linus Torvalds b1286f4e9a Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM updates from Russell King:
 "Here's the updates for ARM for this merge window, which cover quite a
  variety of areas.

  There's a bunch of patch series from Will tackling various bugs like
  the PROT_NONE handling, ASID allocation, cluster boot protocol and
  ASID TLB tagging updates.

  We move to a build-time sorted exception table rather than doing the
  sorting at run-time, add support for the secure computing filter, and
  some updates to the perf code.  We also have sorted out the placement
  of some headers, fixed some build warnings, fixed some hotplug
  problems with the per-cpu TWD code."

* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (73 commits)
  ARM: 7594/1: Add .smp entry for REALVIEW_EB
  ARM: 7599/1: head: Remove boot-time HYP mode check for v5 and below
  ARM: 7598/1: net: bpf_jit_32: fix sp-relative load/stores offsets.
  ARM: 7595/1: syscall: rework ordering in syscall_trace_exit
  ARM: 7596/1: mmci: replace readsl/writesl with ioread32_rep/iowrite32_rep
  ARM: 7597/1: net: bpf_jit_32: fix kzalloc gfp/size mismatch.
  ARM: 7593/1: nommu: do not enable DCACHE_WORD_ACCESS when !CONFIG_MMU
  ARM: 7592/1: nommu: prevent generation of kernel unaligned memory accesses
  ARM: 7591/1: nommu: Enable the strict alignment (CR_A) bit only if ARCH < v6
  ARM: 7590/1: /proc/interrupts: limit the display of IPIs to online CPUs only
  ARM: 7587/1: implement optimized percpu variable access
  ARM: 7589/1: integrator: pass the lm resource to amba
  ARM: 7588/1: amba: create a resource parent registrator
  ARM: 7582/2: rename kvm_seq to vmalloc_seq so to avoid confusion with KVM
  ARM: 7585/1: kernel: fix nr_cpu_ids check in DT logical map init
  ARM: 7584/1: perf: fix link error when CONFIG_HW_PERF_EVENTS is not selected
  ARM: gic: use a private mapping for CPU target interfaces
  ARM: kernel: add logical mappings look-up
  ARM: kernel: add cpu logical map DT init in setup_arch
  ARM: kernel: add device tree init map function
  ...
2012-12-12 11:30:02 -08:00
Yan Burman 520dfe3a36 net/mlx4_en: Add support for destination MAC in steering rules
Implement destination MAC rule extension for L3/L4 rules in
flow steering. Usefull for vSwitch/macvlan configurations.

Signed-off-by: Yan Burman <yanb@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-12 13:02:30 -05:00
Yan Burman c402b9477b net/mlx4_en: Use generic etherdevice.h functions.
Get rid of full_mac, zero_mac in favour of
is_zero_ether_addr and is_broadcast_ether_addr.

Signed-off-by: Yan Burman <yanb@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-12 13:02:30 -05:00
Yan Burman d4676eac0d net: ethtool: Add destination MAC address to flow steering API
Add ability to specify destination MAC address for L3/L4 flow spec
in order to be able to specify action for different VM's under vSwitch
configuration. This change is transparent to older userspace.

Signed-off-by: Yan Burman <yanb@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-12 13:02:30 -05:00
Cong Wang cfd5675435 bridge: add support of adding and deleting mdb entries
This patch implents adding/deleting mdb entries via netlink.
Currently all entries are temp, we probably need a flag to distinguish
permanent entries too.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-12 13:02:30 -05:00
Cong Wang 37a393bc49 bridge: notify mdb changes via netlink
As Stephen mentioned, we need to monitor the mdb
changes in user-space, so add notifications via netlink too.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-12 13:02:30 -05:00
YOSHIFUJI Hideaki fd0ea7dbfa ndisc: Unexport ndisc_{build,send}_skb().
These symbols were exported for bonding device by commit 305d552a
("bonding: send IPv6 neighbor advertisement on failover").

It bacame obsolete by commit 7c899432 ("bonding, ipv4, ipv6, vlan: Handle
NETDEV_BONDING_FAILOVER like NETDEV_NOTIFY_PEERS") and removed by
commit 4f5762ec ("bonding: Remove obsolete source file 'bond_ipv6.c'").

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-12 12:42:29 -05:00
stephen hemminger 895464fa4b uapi: add missing netconf.h to export list
Add netconf.h for use by iproute2.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-12 12:40:23 -05:00
Linus Torvalds 6facac1ab6 Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fixes from Steve French:
 "This includes a set of misc.  cifs fixes (most importantly some byte
  range lock related write fixes from Pavel, and some ACL and idmap
  related fixes from Jeff) but also includes the SMB2.02 dialect
  enablement, and a key fix for SMB3 mounts.

  Default authentication upgraded to ntlmv2 for cifs (it was already
  ntlmv2 for smb2)"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6: (43 commits)
  CIFS: Fix write after setting a read lock for read oplock files
  cifs: parse the device name into UNC and prepath
  cifs: fix up handling of prefixpath= option
  cifs: clean up handling of unc= option
  cifs: fix SID binary to string conversion
  fix "disabling echoes and oplocks" on SMB2 mounts
  Do not send SMB2 signatures for SMB3 frames
  cifs: deal with id_to_sid embedded sid reply corner case
  cifs: fix hardcoded default security descriptor length
  cifs: extra sanity checking for cifs.idmap keys
  cifs: avoid extra allocation for small cifs.idmap keys
  cifs: simplify id_to_sid and sid_to_id mapping code
  CIFS: Fix possible data coherency problem after oplock break to None
  CIFS: Do not permit write to a range mandatory locked with a read lock
  cifs: rename cifs_readdir_lookup to cifs_prime_dcache and make it void return
  cifs: Add CONFIG_CIFS_DEBUG and rename use of CIFS_DEBUG
  cifs: Make CIFS_DEBUG possible to undefine
  SMB3 mounts fail with access denied to some servers
  cifs: Remove unused cEVENT macro
  cifs: always zero out smb_vol before parsing options
  ...
2012-12-12 09:24:13 -08:00
Linus Torvalds 3f1c64f410 xfs: update for 3.8-rc1
- remove the xfssyncd mess
 - only update the last_sync_lsn when a transaction completes
 - zero allocation_args on the kernel stack
 - fix AGF/alloc workqueue deadlock
 - silence uninitialised f.file warning
 - Update inode alloc comments
 - Update mount options documentation
 - report projid32bit feature in geometry call
 - speculative preallocation inode tracking
 - fix attr tree double split corruption
 - fix broken error handling in xfs_vm_writepage
 - drop buffer io reference when a bad bio is built
 - add more attribute tree trace points
 - growfs infrastructure changes for 3.8
 - fs/xfs/xfs_fs_subr.c die die die
 - add CRC infrastructure
 - add CRC checks to the log
 - Remove description of nodelaylog mount option from xfs.txt
 - inode allocation should use unmapped buffers
 - byte range granularity for XFS_IOC_ZERO_RANGE
 - fix direct IO nested transaction deadlock
 - fix stray dquot unlock when reclaiming dquots
 - fix sparse reported log CRC endian issue
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Merge tag 'for-linus-v3.8-rc1' of git://oss.sgi.com/xfs/xfs

Pull xfs update from Ben Myers:
 "There is plenty going on, including the cleanup of xfssyncd, metadata
  verifiers, CRC infrastructure for the log, tracking of inodes with
  speculative allocation, a cleanup of xfs_fs_subr.c, fixes for
  XFS_IOC_ZERO_RANGE, and important fix related to log replay (only
  update the last_sync_lsn when a transaction completes), a fix for
  deadlock on AGF buffers, documentation and comment updates, and a few
  more cleanups and fixes.

  Details:
   - remove the xfssyncd mess
   - only update the last_sync_lsn when a transaction completes
   - zero allocation_args on the kernel stack
   - fix AGF/alloc workqueue deadlock
   - silence uninitialised f.file warning
   - Update inode alloc comments
   - Update mount options documentation
   - report projid32bit feature in geometry call
   - speculative preallocation inode tracking
   - fix attr tree double split corruption
   - fix broken error handling in xfs_vm_writepage
   - drop buffer io reference when a bad bio is built
   - add more attribute tree trace points
   - growfs infrastructure changes for 3.8
   - fs/xfs/xfs_fs_subr.c die die die
   - add CRC infrastructure
   - add CRC checks to the log
   - Remove description of nodelaylog mount option from xfs.txt
   - inode allocation should use unmapped buffers
   - byte range granularity for XFS_IOC_ZERO_RANGE
   - fix direct IO nested transaction deadlock
   - fix stray dquot unlock when reclaiming dquots
   - fix sparse reported log CRC endian issue"

Fix up trivial conflict in fs/xfs/xfs_fsops.c due to the same patch
having been applied twice (commits eaef854335 and 1375cb65e87b: "xfs:
growfs: don't read garbage for new secondary superblocks") with later
updates to the affected code in the XFS tree.

* tag 'for-linus-v3.8-rc1' of git://oss.sgi.com/xfs/xfs: (78 commits)
  xfs: fix sparse reported log CRC endian issue
  xfs: fix stray dquot unlock when reclaiming dquots
  xfs: fix direct IO nested transaction deadlock.
  xfs: byte range granularity for XFS_IOC_ZERO_RANGE
  xfs: inode allocation should use unmapped buffers.
  xfs: Remove the description of nodelaylog mount option from xfs.txt
  xfs: add CRC checks to the log
  xfs: add CRC infrastructure
  xfs: convert buffer verifiers to an ops structure.
  xfs: connect up write verifiers to new buffers
  xfs: add pre-write metadata buffer verifier callbacks
  xfs: add buffer pre-write callback
  xfs: Add verifiers to dir2 data readahead.
  xfs: add xfs_da_node verification
  xfs: factor and verify attr leaf reads
  xfs: factor dir2 leaf read
  xfs: factor out dir2 data block reading
  xfs: factor dir2 free block reading
  xfs: verify dir2 block format buffers
  xfs: factor dir2 block read operations
  ...
2012-12-12 09:19:45 -08:00
Linus Torvalds 22a40fd9a6 dlm for 3.8
This set fixes some conditions in which value blocks are invalidated,
 and includes two trivial cleanups.
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Merge tag 'dlm-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

Pull dlm updates from David Teigland:
 "This set fixes some conditions in which value blocks are invalidated,
  and includes two trivial cleanups."

* tag 'dlm-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  dlm: fix lvb invalidation conditions
  fs/dlm: remove CONFIG_EXPERIMENTAL
  dlm: remove unused variable in *dlm_lowcomms_get_buffer()
2012-12-12 09:15:45 -08:00
Linus Torvalds d206e09036 Merge branch 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup changes from Tejun Heo:
 "A lot of activities on cgroup side.  The big changes are focused on
  making cgroup hierarchy handling saner.

   - cgroup_rmdir() had peculiar semantics - it allowed cgroup
     destruction to be vetoed by individual controllers and tried to
     drain refcnt synchronously.  The vetoing never worked properly and
     caused good deal of contortions in cgroup.  memcg was the last
     reamining user.  Michal Hocko removed the usage and cgroup_rmdir()
     path has been simplified significantly.  This was done in a
     separate branch so that the memcg people can base further memcg
     changes on top.

   - The above allowed cleaning up cgroup lifecycle management and
     implementation of generic cgroup iterators which are used to
     improve hierarchy support.

   - cgroup_freezer updated to allow migration in and out of a frozen
     cgroup and handle hierarchy.  If a cgroup is frozen, all descendant
     cgroups are frozen.

   - netcls_cgroup and netprio_cgroup updated to handle hierarchy
     properly.

   - Various fixes and cleanups.

   - Two merge commits.  One to pull in memcg and rmdir cleanups (needed
     to build iterators).  The other pulled in cgroup/for-3.7-fixes for
     device_cgroup fixes so that further device_cgroup patches can be
     stacked on top."

Fixed up a trivial conflict in mm/memcontrol.c as per Tejun (due to
commit bea8c150a7 ("memcg: fix hotplugged memory zone oops") in master
touching code close to commit 2ef37d3fe4 ("memcg: Simplify
mem_cgroup_force_empty_list error handling") in for-3.8)

* 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (65 commits)
  cgroup: update Documentation/cgroups/00-INDEX
  cgroup_rm_file: don't delete the uncreated files
  cgroup: remove subsystem files when remounting cgroup
  cgroup: use cgroup_addrm_files() in cgroup_clear_directory()
  cgroup: warn about broken hierarchies only after css_online
  cgroup: list_del_init() on removed events
  cgroup: fix lockdep warning for event_control
  cgroup: move list add after list head initilization
  netprio_cgroup: allow nesting and inherit config on cgroup creation
  netprio_cgroup: implement netprio[_set]_prio() helpers
  netprio_cgroup: use cgroup->id instead of cgroup_netprio_state->prioidx
  netprio_cgroup: reimplement priomap expansion
  netprio_cgroup: shorten variable names in extend_netdev_table()
  netprio_cgroup: simplify write_priomap()
  netcls_cgroup: move config inheritance to ->css_online() and remove .broken_hierarchy marking
  cgroup: remove obsolete guarantee from cgroup_task_migrate.
  cgroup: add cgroup->id
  cgroup, cpuset: remove cgroup_subsys->post_clone()
  cgroup: s/CGRP_CLONE_CHILDREN/CGRP_CPUSET_CLONE_CHILDREN/
  cgroup: rename ->create/post_create/pre_destroy/destroy() to ->css_alloc/online/offline/free()
  ...
2012-12-12 08:18:24 -08:00
Linus Torvalds fef3ff2eb7 Merge branch 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
Pull percpu changes from Tejun Heo:
 "Nothing exciting here either.  Joonsoo's is almost cosmetic.  Cyrill's
  patch fixes "percpu_alloc" early kernel param handling so that the
  kernel doesn't crash when the parameter is specified w/o any argument."

* 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
  mm, percpu: Make sure percpu_alloc early parameter has an argument
  percpu: make pcpu_free_chunk() use pcpu_mem_free() instead of kfree()
2012-12-12 08:15:53 -08:00
Linus Torvalds e7b55b8fcd Merge branch 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue changes from Tejun Heo:
 "Nothing exciting.  Just two trivial changes."

* 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: add WARN_ON_ONCE() on CPU number to wq_worker_waking_up()
  workqueue: trivial fix for return statement in work_busy()
2012-12-12 08:15:13 -08:00
Linus Torvalds 50851c6248 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management update from Zhang Rui:
 "Highlights:

   - Introduction of thermal policy support, together with three new
     thermal governors, including step_wise, user_space, fire_share.

   - Introduction of ST-Ericsson db8500_thermal driver and ST-Ericsson
     db8500_cpufreq_cooling driver.

   - Thermal Kconfig file and Makefile refactor.

   - Fixes for generic thermal layer, generic cpucooling, rcar thermal
     driver and Exynos thermal driver."

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (36 commits)
  Thermal: Fix DEFAULT_THERMAL_GOVERNOR
  Thermal: fix a NULL pointer dereference when generic thermal layer is built as a module
  thermal: rcar: add rcar_zone_to_priv() macro
  thermal: rcar: fixup the unit of temperature
  thermal: cpu cooling: allow module builds
  thermal: cpu cooling: use const parameter while registering
  Thermal: Add ST-Ericsson DB8500 thermal properties and platform data.
  Thermal: Add ST-Ericsson DB8500 thermal driver.
  drivers/thermal/Makefile refactor
  Exynos: Add missing dependency
  Refactor drivers/thermal/Kconfig
  thermal: cpu_cooling: Make 'notify_device' static
  Thermal: Remove the cooling_cpufreq_list.
  Thermal: fix bug of counting cpu frequencies.
  Thermal: add indent for code alignment.
  thermal: rcar_thermal: remove explicitly used devm_kfree/iounap()
  thermal: user_space: Add missing static storage class specifiers
  thermal: fair_share: Add missing static storage class specifiers
  thermal: step_wise: Add missing static storage class specifiers
  Thermal: Fix oops and unlocking in thermal_sys.c
  ...
2012-12-12 07:57:13 -08:00
Linus Torvalds 99b8f42ee2 regmap: Updates for v3.8
Quite a few enhancements this time around, helpers and diagnostics for
 the most part which is good to see:
 
 - Addition of table based lookups for the register access checks from
   Davide Ciminaghi, making life easier for drivers with big blocks of
   similar registers.
 - Allow drivers to get the irqdomain for regmap irq_chips, allowing the
   domain to be used with other APIs.
 - Debug improvements for paged register maps.
 - Performance improvments for some of the diagnostic infrastructure,
   very helpful for devices with large register maps.
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Merge tag 'regmap-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "Quite a few enhancements this time around, helpers and diagnostics for
  the most part which is good to see:

   - Addition of table based lookups for the register access checks from
     Davide Ciminaghi, making life easier for drivers with big blocks of
     similar registers.
   - Allow drivers to get the irqdomain for regmap irq_chips, allowing
     the domain to be used with other APIs.
   - Debug improvements for paged register maps.
   - Performance improvments for some of the diagnostic infrastructure,
     very helpful for devices with large register maps."

* tag 'regmap-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: debugfs: Cache offsets of valid regions for dump
  regmap: debugfs: Factor out initial seek
  regmap: debugfs: Avoid overflows for very small reads
  regmap: Cache register and value sizes for debugfs
  regmap: introduce tables for readable/writeable/volatile/precious checks
  regmap: core: Report registers in hex when we can't cache
  regmap: Fix printing of size_t variable
  regmap: make lock/unlock functions customizable
  regmap: silence GCC warning
  regmap: Split raw writes that cross window boundaries
  regmap: Make return code checks consistent
  regmap: Factor range lookup out of page selection
  regmap: Provide debugfs read of register ranges
  regmap: Factor out debugfs register read
  regmap: Allow ranges to be named
  regmap: When we sanity check during range adds say what errors we find
  regmap: Rename n_ranges to num_ranges
  regmap: irq: Allow users to retrieve the irq_domain
2012-12-12 07:55:48 -08:00
Linus Torvalds 139353ffbe Trivial fix for error injection code using ACPI5 version of EINJ
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Merge tag 'please-pull-einj-fix-for-acpi5' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull ACPI5 error injection fix from Tony Luck:
 "Trivial fix for error injection code using ACPI5 version of EINJ"

* tag 'please-pull-einj-fix-for-acpi5' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  ACPI, APEI, EINJ: Add missed ACPI5 support for error trigger table
2012-12-12 07:54:53 -08:00
Linus Torvalds 251a8cfeda Patch series to allow EFI variable backend to pstore
to hold multiple records.
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Merge tag 'please-pull-pstore_mevent' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

Pull pstore fixes from Tony Luck:
 "Patch series to allow EFI variable backend to pstore to hold multiple
  records."

* tag 'please-pull-pstore_mevent' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  efi_pstore: Add a format check for an existing variable name at erasing time
  efi_pstore: Add a format check for an existing variable name at reading time
  efi_pstore: Add a sequence counter to a variable name
  efi_pstore: Add ctime to argument of erase callback
  efi_pstore: Remove a logic erasing entries from a write callback to hold multiple logs
  efi_pstore: Add a logic erasing entries to an erase callback
  efi_pstore: Check remaining space with QueryVariableInfo() before writing data
2012-12-12 07:50:59 -08:00
Linus Torvalds 70f2836d02 Miscellaneous ia64 fix for 3.8. Just need to avoid a pending
namespace collision from other work being merged.
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Merge tag 'please-pull-misc-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

Pull ia64 fix from Tony Luck:
 "Miscellaneous ia64 fix for 3.8.  Just need to avoid a pending
  namespace collision from other work being merged."

* tag 'please-pull-misc-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  [IA64] Resolve name space collision for cache_show()
2012-12-12 07:50:18 -08:00
Linus Torvalds 97ebe8f55a Main AArch64 changes:
- Generic execve, kernel_thread, fork/vfork/clone.
 - Preparatory patches for KVM support (initialising EL2 mode for later
   installing KVM support, hypervisor stub).
 - Signal handling corner case fix (alternative signal stack set up for a
   SEGV handler, which is raised in response to RLIMIT_STACK being
   reached).
 - Sub-nanosecond timer error fix.
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Merge tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64

Pull ARM64 updates from Catalin Marinas:

 - Generic execve, kernel_thread, fork/vfork/clone.

 - Preparatory patches for KVM support (initialising EL2 mode for later
   installing KVM support, hypervisor stub).

 - Signal handling corner case fix (alternative signal stack set up for
   a SEGV handler, which is raised in response to RLIMIT_STACK being
   reached).

 - Sub-nanosecond timer error fix.

* tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: (30 commits)
  arm64: Update the MAINTAINERS entry
  arm64: compat for clock_adjtime(2) is miswired
  arm64: move FP-SIMD save/restore code to a macro
  arm64: hyp: initialize vttbr_el2 to zero
  arm64: add hypervisor stub
  arm64: record boot mode when entering the kernel
  arm64: move vector entry macro to assembler.h
  arm64: add AArch32 execution modes to ptrace.h
  arm64: expand register mapping between AArch32 and AArch64
  arm64: generic timer: use virtual counter instead of physical at EL0
  arm64: vdso: defer shifting of nanosecond component of timespec
  arm64: vdso: rework __do_get_tspec register allocation and return shift
  arm64: vdso: check sequence counter even for coarse realtime operations
  arm64: vdso: fix clocksource mask when extracting bottom 56 bits
  ARM64: Remove incorrect Kconfig symbol HAVE_SPARSE_IRQ
  Documentation: Fixes a word in Documentation/arm64/memory.txt
  arm64: Make !dirty ptes read-only
  arm64: Convert empty flush_cache_{mm,page} functions to static inline
  arm64: signal: let the compiler inline compat_get_sigframe
  arm64: signal: return struct rt_sigframe from get_sigframe
  ...

Conflicts:
	arch/arm64/include/asm/unistd32.h
2012-12-12 07:49:02 -08:00
David Howells 76583cffb7 MN10300: Use asm-generic/pci_iomap.h
The declarations from MN10300's pci_iomap() was removed by commit
34f1bdee19 but asm-generic/pci_iomap.h wasn't
then #included from asm/io.h.

Signed-off-by: David Howells <dhowells@redhat.com>
2012-12-12 15:46:15 +00:00
David Howells 0c6e686ce4 MN10300: Get rid of unused variable from ASB2305 PCI code
Get rid of an unused variable in pcibios_fixup_device_resources() which leads
to the following warning:

arch/mn10300/unit-asb2305/pci.c: In function 'pcibios_fixup_device_resources':
arch/mn10300/unit-asb2305/pci.c:324:24: warning: unused variable 'region' [-Wunused-variable]

Whilst we're at it, merge the two integer variable declarations into one line.

Signed-off-by: David Howells <dhowells@redhat.com>
2012-12-12 15:46:15 +00:00
David Howells 00a2f91518 MN10300: ASB2305 PCI code needs linux/irq.h
ASB2305 PCI code needs to #include linux/irq.h for XIRQ1 so that it can set
the CPU interrupt priority level on the PCI interrupt.

Signed-off-by: David Howells <dhowells@redhat.com>
2012-12-12 15:46:15 +00:00
Kautuk Consul 3d7b6a674e mn10300/mm/fault.c: Port OOM changes to do_page_fault
Commit d065bd810b
(mm: retry page fault when blocking on disk transfer) and
commit 37b23e0525
(x86,mm: make pagefault killable)

The above commits introduced changes into the x86 pagefault handler
for making the page fault handler retryable as well as killable.

These changes reduce the mmap_sem hold time, which is crucial
during OOM killer invocation.

Port these changes to mn10300.

Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
2012-12-12 15:46:15 +00:00
David Howells 83c2dc15ce MN10300: Handle cacheable PCI regions in pci_iomap()
Handle cacheable PCI regions in pci_iomap().  If IORESOURCE_CACHEABLE is set
then we AND away the 0x20000000 "flag".

Signed-off-by: David Howells <dhowells@redhat.com>
2012-12-12 15:46:14 +00:00
Mark Salter 0369c360e5 MN10300: fix debug polling in ttySM driver
The debug polling interface for the SoC serial ports did not work in the case
where the serial ports were not also used as a console. In that case, the
uart driver startup function will not be called so tx and rx would not be
enabled in the hardware control register. Also, vdma interrupts would not be
enabled which the poll_get_char function relied on. This patch makes sure that
the rx and tx enables are set as a consequence of the uart set_termios call
which is the only initialization done for the debug polling interface. Also,
the poll_get_char now handles the case where vdma interrupts are not enabled.

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
2012-12-12 15:46:14 +00:00
Mark Salter 97a70b1439 MN10300: ttySM: clean up unnecessary casting
The ttySM uart data register pointers are declared as void* pointers. Change
them to u8* pointers so we don't need to use casts in the code.

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
2012-12-12 15:46:14 +00:00
Mark Salter 8f0bcbcab0 MN10300: fix SMP synchronization between txdma and serial driver
The SoC serial port driver uses a high priority interrupt to handle tx of
characters in the tx ring buffer. The driver needs to disable/enable this IRQ
from outside of irq context. The original code to do this is not foolproof on
SMP machines because the IRQ running on one core could still access the serial
port for a short time after the driver running on another core disables the
interrupt. This patch adds a flag to tell the IRQ handler that the driver
wants to disable the interrupt. After seeing the flag, the IRQ handler will
immediately disable the interrupt and exit. After setting the flag, the driver
will wait for interrupt to be disabled by the IRQ handler.

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
2012-12-12 15:46:14 +00:00
Mark Salter 8d160027ff MN10300: fix serial port vdma irq setup for SMP
The builtin SoC serial ports have no FIFOs and use a virtual DMA mechanism
based on high priority IRQs to avoid overruns. These high priority interrupts
are pinned to cpu#0 on SMP systems. This patch fixes a problem with SMP where
the set_intr_level() interface is used to set the priority for these IRQs. The
set_intr_level() function sets priority on the local cpu but on SMP systems,
this code may be run on some other cpu than the one handling the interrupts.
Instead of setting interrupt level explicitly, this patch uses a special
irq_chip for these interrupts so that the mask/unmask methods can set the
interrupt level implicitly.

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
2012-12-12 15:46:14 +00:00
Mark Salter 7d361cb754 MN10300: cleanup IRQ affinity setting
The irq_set_affinity handler for the mn10300 cpu pic had some hard-coded IRQs
which were not to be migrated from one cpu to another. This patch cleans those
up by using a combination of IRQF_NOBALANCING and specialized irq chips with
no irq_set_affinity handler. This maintains the previous behavior by using
generic IRQ interfaces rather than hard coding IRQ numbers in the default
irq_set_affinity handler.

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
2012-12-12 15:46:14 +00:00
David Howells c98c406eb2 MN10300: ttySM: Use memory barriers correctly in circular buffer logic
Use memory barriers correctly in the circular buffer logic used in the driver,
as documented in Documentation/circular-buffers.txt.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Mark Salter <msalter@redhat.com>
2012-12-12 15:46:14 +00:00
Linus Torvalds d07e43d70e Merge branch 'omap-serial' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM OMAP serial updates from Russell King:
 "This series is a major reworking of the OMAP serial driver code fixing
  various bugs in the hardware-assisted flow control, extending up into
  serial_core for a couple of issues.  These fixes have been done as a
  set of progressive changes and transformations in the hope that no new
  bugs will be introduced by this series.

  The problems are many-fold, from the driver not being informed about
  updated settings, to the driver not knowing what the intentions of the
  upper layers are.

  The first four patches tackle the serial_core layer, allowing it to
  provide the necessary information to drivers, and the remaining
  patches allow the OMAP serial driver to take advantage of this.

  This brings hardware assisted RTS/CTS and XON/OFF flow control into a
  useful state.

  These patches have been in linux-next for most of the last cycle;
  indeed they predate the previous merge window.  They've also been
  posted to the OMAP people."

* 'omap-serial' of git://git.linaro.org/people/rmk/linux-arm: (21 commits)
  SERIAL: omap: fix hardware assisted flow control
  SERIAL: omap: simplify (2)
  SERIAL: omap: move xon/xoff setting earlier
  SERIAL: omap: always set TCR
  SERIAL: omap: simplify
  SERIAL: omap: don't read back LCR/MCR/EFR
  SERIAL: omap: serial_omap_configure_xonxoff() contents into set_termios
  SERIAL: omap: configure xon/xoff before setting modem control lines
  SERIAL: omap: remove OMAP_UART_SYSC_RESET and OMAP_UART_FIFO_CLR
  SERIAL: omap: move driver private definitions and structures to driver
  SERIAL: omap: remove 'irq_pending' bitfield
  SERIAL: omap: fix MCR TCRTLR bit handling
  SERIAL: omap: fix set_mctrl() breakage
  SERIAL: omap: no need to re-read EFR
  SERIAL: omap: remove setting of EFR SCD bit
  SERIAL: omap: allow hardware assisted IXANY mode to be disabled
  SERIAL: omap: allow hardware assisted rts/cts modes to be disabled
  SERIAL: core: add throttle/unthrottle callbacks for hardware assisted flow control
  SERIAL: core: add hardware assisted h/w flow control support
  SERIAL: core: add hardware assisted s/w flow control support
  ...

Conflicts:
	drivers/tty/serial/omap-serial.c
2012-12-12 07:45:16 -08:00
Zhang Rui 1f53ef17d3 Thermal: Fix DEFAULT_THERMAL_GOVERNOR
Fix DEFAULT_THERMAL_GOVERNOR to be consistant with the
default governor selected in kernel config file.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-12-12 15:34:48 +08:00
Zhang Rui d567c686ae Thermal: fix a NULL pointer dereference when generic thermal layer is built as a module
[   12.761956] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018
[   12.762016] IP: [<ffffffffa0005277>] handle_thermal_trip+0x47/0x130 [thermal_sys]
[   12.762060] PGD 1fec74067 PUD 1fee5b067 PMD 0
[   12.762127] Oops: 0000 [#1] SMP
[   12.762177] Modules linked in: hid_generic crc32c_intel usbhid hid firewire_ohci(+) e1000e(+) firewire_core crc_itu_t xhci_hcd(+) thermal(+) fan thermal_sys hwmon
[   12.762423] CPU 1
[   12.762443] Pid: 187, comm: modprobe Tainted: G       A     3.7.0-thermal-module+ #25                  /DH77DF
[   12.762496] RIP: 0010:[<ffffffffa0005277>]  [<ffffffffa0005277>] handle_thermal_trip+0x47/0x130 [thermal_sys]
[   12.762682] RSP: 0018:ffff8801fe7ddc18  EFLAGS: 00010282
[   12.762704] RAX: 0000000000000000 RBX: ffff8801ff3e9c00 RCX: ffff8801fdc39800
[   12.762728] RDX: ffff8801fe7ddc24 RSI: 0000000000000001 RDI: ffff8801ff3e9c00
[   12.762764] RBP: ffff8801fe7ddc48 R08: 0000000004000000 R09: ffffffffa001f568
[   12.762797] R10: ffffffff81363083 R11: 0000000000000001 R12: 0000000000000001
[   12.762832] R13: 0000000000000000 R14: 0000000000000001 R15: ffff8801fde73e68
[   12.762866] FS:  00007f5548516700(0000) GS:ffff88021f240000(0000) knlGS:0000000000000000
[   12.762912] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.762946] CR2: 0000000000000018 CR3: 00000001fefe2000 CR4: 00000000001407e0
[   12.762979] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   12.763014] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[   12.763048] Process modprobe (pid: 187, threadinfo ffff8801fe7dc000, task ffff8801fe5bdb40)
[   12.763095] Stack:
[   12.763122]  0000000000019640 00000000fdc39800 ffff8801fe7ddc48 ffff8801ff3e9c00
[   12.763225]  0000000000000002 0000000000000000 ffff8801fe7ddc78 ffffffffa00053e7
[   12.763338]  ffff8801ff3e9c00 0000000000006c98 ffffffffa0007480 ffff8801ff3e9c00
[   12.763440] Call Trace:
[   12.763470]  [<ffffffffa00053e7>] thermal_zone_device_update+0x77/0xa0 [thermal_sys]
[   12.763515]  [<ffffffffa0006d38>] thermal_zone_device_register+0x788/0xa88 [thermal_sys]
[   12.763562]  [<ffffffffa001f394>] acpi_thermal_add+0x360/0x4c8 [thermal]
[   12.763598]  [<ffffffff8133902a>] acpi_device_probe+0x50/0x190
[   12.763632]  [<ffffffff811bd793>] ? sysfs_create_link+0x13/0x20
[   12.763666]  [<ffffffff813cc41b>] driver_probe_device+0x7b/0x240
[   12.763699]  [<ffffffff813cc68b>] __driver_attach+0xab/0xb0
[   12.763732]  [<ffffffff813cc5e0>] ? driver_probe_device+0x240/0x240
[   12.763766]  [<ffffffff813ca836>] bus_for_each_dev+0x56/0x90
[   12.763799]  [<ffffffff813cbf4e>] driver_attach+0x1e/0x20
[   12.763831]  [<ffffffff813cbac0>] bus_add_driver+0x190/0x290
[   12.763864]  [<ffffffffa0022000>] ? 0xffffffffa0021fff
[   12.763896]  [<ffffffff813ccbea>] driver_register+0x7a/0x160
[   12.763928]  [<ffffffffa0022000>] ? 0xffffffffa0021fff
[   12.763960]  [<ffffffff813399fb>] acpi_bus_register_driver+0x43/0x45
[   12.763995]  [<ffffffffa002203a>] acpi_thermal_init+0x3a/0x42 [thermal]
[   12.764029]  [<ffffffff8100207f>] do_one_initcall+0x3f/0x170
[   12.764063]  [<ffffffff810b1a5f>] sys_init_module+0x8f/0x200
[   12.764097]  [<ffffffff815ff259>] system_call_fastpath+0x16/0x1b
[   12.764129] Code: 48 8b 87 c8 02 00 00 41 89 f4 48 8d 55 dc ff 50 28 44 8b 6d dc 41 8d 45 fe 83 f8 01 76 5e 48 8b 83 d8 02 00 00 44 89 e6 48 89 df <ff> 50 18 4c 8d a3 10 03 00 00 4c 89 e7 e8 87 f1 5e e1 8b 83 bc
[   12.765164] RIP  [<ffffffffa0005277>] handle_thermal_trip+0x47/0x130 [thermal_sys]
[   12.765223]  RSP <ffff8801fe7ddc18>
[   12.765252] CR2: 0000000000000018
[   12.765284] ---[ end trace 7723294cdfb00d2a ]---

This is because thermal_zone_device_update() is invoked before
any thermal governors being registered.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-12-12 15:23:54 +08:00
Eric Dumazet 1abbe1394a pkt_sched: avoid requeues if possible
With BQL being deployed, we can more likely have following behavior :

We dequeue a packet from qdisc in dequeue_skb(), then we realize target
tx queue is in XOFF state in sch_direct_xmit(), and we have to hold the
skb into gso_skb for later.

This shows in stats (tc -s qdisc dev eth0) as requeues.

Problem of these requeues is that high priority packets can not be
dequeued as long as this (possibly low prio and big TSO packet) is not
removed from gso_skb.

At 1Gbps speed, a full size TSO packet is 500 us of extra latency.

In some cases, we know that all packets dequeued from a qdisc are
for a particular and known txq :

- If device is non multi queue
- For all MQ/MQPRIO slave qdiscs

This patch introduces a new qdisc flag, TCQ_F_ONETXQUEUE to mark
this capability, so that dequeue_skb() is allowed to dequeue a packet
only if the associated txq is not stopped.

This indeed reduce latencies for high prio packets (or improve fairness
with sfq/fq_codel), and almost remove qdisc 'requeues'.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-12 00:16:47 -05:00
David Woodhouse cae49ede00 solos-pci: fix double-free of TX skb in DMA mode
We weren't clearing card->tx_skb[port] when processing the TX done interrupt.
If there wasn't another skb ready to transmit immediately, this led to a
double-free because we'd free it *again* next time we did have a packet to
send.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-12 00:16:47 -05:00
Linus Torvalds 1ebaf4f4e6 Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 timer update from Ingo Molnar:
 "This tree includes HPET fixes and also implements a calibration-free,
  TSC match driven APIC timer interrupt mode: 'TSC deadline mode'
  supported in SandyBridge and later CPUs."

* 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: hpet: Fix inverted return value check in arch_setup_hpet_msi()
  x86: hpet: Fix masking of MSI interrupts
  x86: apic: Use tsc deadline for oneshot when available
2012-12-11 20:01:33 -08:00
Linus Torvalds 743aa456c1 Merge branch 'x86-nuke386-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull "Nuke 386-DX/SX support" from Ingo Molnar:
 "This tree removes ancient-386-CPUs support and thus zaps quite a bit
  of complexity:

    24 files changed, 56 insertions(+), 425 deletions(-)

  ... which complexity has plagued us with extra work whenever we wanted
  to change SMP primitives, for years.

  Unfortunately there's a nostalgic cost: your old original 386 DX33
  system from early 1991 won't be able to boot modern Linux kernels
  anymore.  Sniff."

I'm not sentimental.  Good riddance.

* 'x86-nuke386-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, 386 removal: Document Nx586 as a 386 and thus unsupported
  x86, cleanups: Simplify sync_core() in the case of no CPUID
  x86, 386 removal: Remove CONFIG_X86_POPAD_OK
  x86, 386 removal: Remove CONFIG_X86_WP_WORKS_OK
  x86, 386 removal: Remove CONFIG_INVLPG
  x86, 386 removal: Remove CONFIG_BSWAP
  x86, 386 removal: Remove CONFIG_XADD
  x86, 386 removal: Remove CONFIG_CMPXCHG
  x86, 386 removal: Remove CONFIG_M386 from Kconfig
2012-12-11 19:59:32 -08:00
Linus Torvalds a05a4e24dc Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 topology discovery improvements from Ingo Molnar:
 "These changes improve topology discovery on AMD CPUs.

  Right now this feeds information displayed in
  /sys/devices/system/cpu/cpuX/cache/indexY/* - but in the future we
  could use this to set up a better scheduling topology."

* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, cacheinfo: Base cache sharing info on CPUID 0x8000001d on AMD
  x86, cacheinfo: Make use of CPUID 0x8000001d for cache information on AMD
  x86, cacheinfo: Determine number of cache leafs using CPUID 0x8000001d on AMD
  x86: Add cpu_has_topoext
2012-12-11 19:58:29 -08:00
Linus Torvalds e9a5a91971 Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Ingo Molnar:
 "Small cleanups."

* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Fix the error of using "const" in gen-insn-attr-x86.awk
  x86, apic: Cleanup cfg->domain setup for legacy interrupts
  x86: Remove dead hlt_use_halt code
2012-12-11 19:57:56 -08:00