Commit Graph

468454 Commits

Author SHA1 Message Date
Naveen Krishna Chatradhi 08e5a1feae pinctrl: samsung: use CONFIG_PINCTRL_SAMSUNG symbol in makefile
Samsung Exynos7 is a ARM64bit processor. Which does not select
the CONFIG_PLAT_SAMSUNG symbol. CONFIG_PINCTRL_SAMSUNG is being
selected for both PLAT_SAMSUNG and ARCH_EXYNOS7 symbols.

This patch modifes the pinctrl/Makefile to use
CONFIG_PINCTRL_SAMSUNG symbol to compile the pinctrl/samsung/*.c

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: linus.walleij@linaro.org
Cc: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-29 14:35:58 +02:00
Keerthy aa2293d82c pinctrl: single: AM437x: Add pinctrl compatibility
AM437x pinctrl definitions now differ from traditional 16 bit OMAP pin
ctrl definitions, in that all 32 bits are used to describe a single pin

Also the location of wakeupenable and event bits have changed.

Signed-off-by: Keerthy <j-keerthy@ti.com>
[nm@ti.com: minor updates]
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-29 09:28:35 +02:00
Nishanth Menon 31320beaa3 pinctrl: single: Add DRA7 pinctrl compatibility
DRA7 pinctrl definitions now differ from traditional 16 bit OMAP pin
ctrl definitions, in that all 32 bits are used to describe a single pin

Also the location of wakeupenable and event bits have changed.

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-29 09:27:44 +02:00
Nishanth Menon 53fc66d87c pinctrl: bindings: Add OMAP pinctrl binding
Add basic skeleton of OMAP pinctrl bindings. This is compatible with
pinctrl,single bindings and is meant purely as a reference point.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-29 09:26:07 +02:00
Rongjun Ying 086b8904b4 pinctrl: atlas6: Add I2S external clock input pingroup
The I2S controller can use the external clock as reference clock with
master mode. But based on different hardware or software design, this
external clock might be needed or not needed.
So the external input pin can be an independent pinctrl group, and the
card driver can decice to get it or not.

Signed-off-by: Rongjun Ying <rongjun.ying@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-29 08:42:13 +02:00
Rongjun Ying ed36c1a06f pinctrl: atlas6: take mclk pin out of i2s pingroup
The I2S controller can output mclk to external audio codec. But by
hardware design, some codecs need mclk and some codecs do not need
mclk. So the mclk pin can be an independent pinctrl group, and the
card driver can get it or not based on boards.

Signed-off-by: Rongjun Ying <rongjun.ying@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-29 08:40:12 +02:00
Bin Shi c09f80db58 pinctrl: sirf: fix lots of "line over 80 characters"
According to key customer's requirement, fix "line over 80
characters".

Signed-off-by: Bin Shi <Bin.Shi@csr.com>
Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-29 08:38:37 +02:00
Bin Shi 4bee325cd9 pinctrl: sirf: fix "quoted string split across lines"
this patch fixes:
WARNING: quoted string split across lines
902: FILE: drivers/pinctrl/sirf/pinctrl-sirf.c:902:
+MODULE_AUTHOR("Rongjun Ying <rongjun.ying@csr.com>, "
+	"Yuping Luo <yuping.luo@csr.com>, "

WARNING: quoted string split across lines
903: FILE: drivers/pinctrl/sirf/pinctrl-sirf.c:903:
+	"Yuping Luo <yuping.luo@csr.com>, "
+	"Barry Song <baohua.song@csr.com>");

Signed-off-by: Bin Shi <Bin.Shi@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-29 08:37:40 +02:00
Kiran Padwal ad3d7f1e8f pinctrl: imx6sl: introduce MODULE_DEVICE_TABLE for module autoloading
Enable autoloading of pinctrl-imx6sl module when a corresponing DT entry is present.

Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-29 07:16:07 +02:00
Kiran Padwal 5dfe10b43a pinctrl: Make of_device_id array const
Make of_device_id array const, because all OF functions handle it as
const.

Signed-off-by: Kiran Padwal <kiran.padwal21@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-29 07:13:04 +02:00
Doug Anderson f3ababa8ba pinctrl: Add mux options 3 and 4 for rockchip pinctrl
Newer Rockchip SoCs have more muxing slots.  Add slots 3 and 4 since
the rk3288 table goes all the way up to 4.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-28 15:18:03 +02:00
Alexander Shiyan 4f671cb25e pinctrl: Add i.MX21 pincontrol driver
This patch adds pincontrol driver for Freescale i.MX21 SOCs.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-28 14:32:52 +02:00
Linus Torvalds 52addcf9d6 Linux 3.17-rc2 2014-08-25 15:36:20 -07:00
Linus Torvalds f01bfc977e NFS client fixes for 3.17
Highlights:
 
 - More fixes for read/write codepath regressions
   - Sleeping while holding the inode lock
   - Stricter enforcement of page contiguity when coalescing requests
   - Fix up error handling in the page coalescing code
 - Don't busy wait on SIGKILL in the file locking code
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJT+0LpAAoJEGcL54qWCgDyWfsP/imrpge47aZywi95chV8vgjM
 O85ITZbupTFwXbB7kE63CrcaxRGhFrSStk4UDhDCDkHfFb1ksjZaPR1mnkwvkR2p
 4+JUoq0fkPfeX21+rqKCYmnhstpne/N8K8FJBsEs3/TqiCBWxWOelLXdyWun4H5B
 9JBYQ7FYitUazeSiSiDXcl7Di/E09cFPi0H5VPKRyuNdYxySabnsBOELBE/28iXr
 egW1I9UKQR2EtBrvgazBbWE5XmB9XAm4X3sD1l0QD65mfSNkbnNhPFSiCdT7f/d6
 9uxECR0Y4wNYgYAfVLBew5/MXJajcv03BFMKmTUeGj9fOQzycpBT4Dx2KxEWqfnt
 Xk2nNbISxBnO0koMflmo+LPv2lv+Br3kQ+eZCHHKknvBrX2a6bJdTCZkwACVtND9
 LdbAveFQpdaeLrm/28TnRoE927r+VeAVM19yOSG8sNAskFFg4Yy51tR0e1GivkJT
 +qmmTRx+l78HjHvoPXOYdNgBC954r6APH5ST7su/7WxNClM36fEK6XxA9xbDLJWm
 wUzlGKvpwEeBJJhgjbQLwuU8BiksjFz/CaiObNvPOpc/d2GoKIhnTg19kNhg2R//
 UCDa2d5fep4z0Bo9p0s1KZm9pSBkkLjvRp9dm8WEIxLcdaF1jBK3dJECepm6ccvw
 dmEmEfjbMudVdt/ZhapJ
 =2wRt
 -----END PGP SIGNATURE-----

Merge tag 'nfs-for-3.17-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client fixes from Trond Myklebust:
 "Highlights:

   - more fixes for read/write codepath regressions
     * sleeping while holding the inode lock
     * stricter enforcement of page contiguity when coalescing requests
     * fix up error handling in the page coalescing code

   - don't busy wait on SIGKILL in the file locking code"

* tag 'nfs-for-3.17-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  nfs: Don't busy-wait on SIGKILL in __nfs_iocounter_wait
  nfs: can_coalesce_requests must enforce contiguity
  nfs: disallow duplicate pages in pgio page vectors
  nfs: don't sleep with inode lock in lock_and_join_requests
  nfs: fix error handling in lock_and_join_requests
  nfs: use blocking page_group_lock in add_request
  nfs: fix nonblocking calls to nfs_page_group_lock
  nfs: change nfs_page_group_lock argument
2014-08-25 15:34:28 -07:00
Linus Torvalds dd5957b78f SH Drivers Updates For v3.17
* Confine SH_INTC to platforms that need it
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJT+oswAAoJENfPZGlqN0++/A8QAK2yp96zl7gABtddgkunNJiV
 xWCm4wcP+7dIrLpwizxtt/6HMPj9ZJHYtcxRRKVlzquwcukeVCIkfZ3Qvn2JilWM
 +b4rVRGzQ+z0M7SCpNGjtgFc1IFrVrzuxZpPwgseQ5I6HQsZJKUi3qn5rRJSEax2
 w+ANis2eZfmSBdu3Qsx2QBDXvS7ZPlLpimoAE+rjr60dZnljcrvBrVHQvSgpEHxn
 4rXPbYrrkIee32J4lxLRDPtn5fvAsrr+vcLXEYqyFr2292U2PAxIrjZgrRzZYNtD
 L6xmhZAhdmIpC0gLDLyKQhwj/9pfGFxFErZX9jeGdPT2KTEEYPkSxb75kdTwmxP4
 DEtZG9Nuu6CQCBldrMt6kpujn+XCYRl94cSyUffJ5KVhNUiqB+e+JP80Yj9HB7QU
 nGUfs2hQ/azY8XEiwvnls0314thkB5gN7KHxmlaFa9Wz7cgYFwWAguHH8qrq839U
 +i+7dUg7nlmVoIAvzYIIA+L7x3xX4gEwsf88x3i04DPp0A8/oDAwGrqM5QzsaZpD
 ghodnKRG7foc+29RLYka5CxF/MqKzpJu675sSBCVB3uW9NZpoGSwml/NN9yUu1JD
 uvU2FECcbxF5OU6RHfq8FFql0fAOVeVWsMCEXgkjpZOXynKU15VTf1K2d+qkUZ/Y
 gV45Jj+yCZhYs0wbXUml
 =QSyy
 -----END PGP SIGNATURE-----

Merge tag 'renesas-sh-drivers-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas

Pull SH driver fix from Simon Horman:
 "Confine SH_INTC to platforms that need it"

* tag 'renesas-sh-drivers-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  sh: intc: Confine SH_INTC to platforms that need it
2014-08-25 15:29:33 -07:00
Linus Torvalds 497c01dda9 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
 "Pretty much all across the field so with this we should be in
  reasonable shape for the upcoming -rc2"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: OCTEON: make get_system_type() thread-safe
  MIPS: CPS: Initialize EVA before bringing up VPEs from secondary cores
  MIPS: Malta: EVA: Rename 'eva_entry' to 'platform_eva_init'
  MIPS: EVA: Add new EVA header
  MIPS: scall64-o32: Fix indirect syscall detection
  MIPS: syscall: Fix AUDIT value for O32 processes on MIPS64
  MIPS: Loongson: Fix COP2 usage for preemptible kernel
  MIPS: NL: Fix nlm_xlp_defconfig build error
  MIPS: Remove race window in page fault handling
  MIPS: Malta: Improve system memory detection for '{e, }memsize' >= 2G
  MIPS: Alchemy: Fix db1200 PSC clock enablement
  MIPS: BCM47XX: Fix reboot problem on BCM4705/BCM4785
  MIPS: Remove duplicated include from numa.c
  MIPS: Add common plat_irq_dispatch declaration
  MIPS: MSP71xx: remove unused plat_irq_dispatch() argument
  MIPS: GIC: Remove useless parens from GICBIS().
  MIPS: perf: Mark pmu interupt IRQF_NO_THREAD
2014-08-25 15:28:57 -07:00
Linus Torvalds 01e9982ab3 The rewrite of the ftrace code that makes it possible to allow for
separate trampolines had a design flaw with the interaction between
 the function and function_graph tracers.
 
 The main flaw was the simplification of the use of multiple tracers having
 the same filter (like function and function_graph, that use the
 set_ftrace_filter file to filter their code). The design assumed that the
 two tracers could never run simultaneously as only one tracer can be
 used at a time. The problem with this assumption was that the function
 profiler could be implemented on top of the function graph tracer, and
 the function profiler could run at the same time as the function tracer.
 This caused the assumption to be broken and when ftrace detected this
 failed assumpiton it would spit out a nasty warning and shut itself down.
 
 Instead of using a single ftrace_ops that switches between the function
 and function_graph callbacks, the two tracers can again use their own
 ftrace_ops. But instead of having a complex hierarchy of ftrace_ops,
 the filter fields are placed in its own structure and the ftrace_ops
 can carefully use the same filter. This change took a bit to be able
 to allow for this and currently only the global_ops can share the same
 filter, but this new design can easily be modified to allow for any
 ftrace_ops to share its filter with another ftrace_ops.
 
 The first four patches deal with the change of allowing the ftrace_ops
 to share the filter (and this needs to go to 3.16 as well).
 
 The fifth patch fixes a bug that was also caused by the new changes
 but only for archs other than x86, and only if those archs implement
 a direct call to the function_graph tracer which they do not do yet
 but will in the future. It does not need to go to stable, but needs
 to be fixed before the other archs update their code to allow direct
 calls to the function_graph trampoline.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJT+hqSAAoJEKQekfcNnQGulvcH/0O4NMXX4HH1dQlYgKEaSYxE
 Nh8WdiewopF5iaeNvo+8Nzdq8D2k3KgMOqSlzJ4JVmzd7gjOBSGeKDfqFwR+IbTk
 9LcaJJCI3oG3MEf6m7gZMdjKPKyxkeYHDtG7kRHo8z94eliV9pKC6fUnEWayQO3o
 Kv6IBupdkF8ICAiKRae5Uo0c9wjZ9YP0bZS7fxI2hJw3h/NMFnhnhUL03URIx8e3
 dqgpweYg+P3KPfp2Jz6safdJqLTPK9rqqhkZhylbDl7o78xEzRN7wCyB6Nak00xz
 swRgsW6vFP7ci/YSNx+B6HCIf7NTm3WLDrrIhitNHcJUZwUMU3CRO9IJHGsTuEE=
 =J5lZ
 -----END PGP SIGNATURE-----

Merge tag 'trace-fixes-v3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull fix for ftrace function tracer/profiler conflict from Steven Rostedt:
 "The rewrite of the ftrace code that makes it possible to allow for
  separate trampolines had a design flaw with the interaction between
  the function and function_graph tracers.

  The main flaw was the simplification of the use of multiple tracers
  having the same filter (like function and function_graph, that use the
  set_ftrace_filter file to filter their code).  The design assumed that
  the two tracers could never run simultaneously as only one tracer can
  be used at a time.  The problem with this assumption was that the
  function profiler could be implemented on top of the function graph
  tracer, and the function profiler could run at the same time as the
  function tracer.  This caused the assumption to be broken and when
  ftrace detected this failed assumpiton it would spit out a nasty
  warning and shut itself down.

  Instead of using a single ftrace_ops that switches between the
  function and function_graph callbacks, the two tracers can again use
  their own ftrace_ops.  But instead of having a complex hierarchy of
  ftrace_ops, the filter fields are placed in its own structure and the
  ftrace_ops can carefully use the same filter.  This change took a bit
  to be able to allow for this and currently only the global_ops can
  share the same filter, but this new design can easily be modified to
  allow for any ftrace_ops to share its filter with another ftrace_ops.

  The first four patches deal with the change of allowing the ftrace_ops
  to share the filter (and this needs to go to 3.16 as well).

  The fifth patch fixes a bug that was also caused by the new changes
  but only for archs other than x86, and only if those archs implement a
  direct call to the function_graph tracer which they do not do yet but
  will in the future.  It does not need to go to stable, but needs to be
  fixed before the other archs update their code to allow direct calls
  to the function_graph trampoline"

* tag 'trace-fixes-v3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ftrace: Use current addr when converting to nop in __ftrace_replace_code()
  ftrace: Fix function_profiler and function tracer together
  ftrace: Fix up trampoline accounting with looping on hash ops
  ftrace: Update all ftrace_ops for a ftrace_hash_ops update
  ftrace: Allow ftrace_ops to use the hashes from other ops
2014-08-25 15:11:53 -07:00
Linus Torvalds 7be141d055 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "A couple of EFI fixes, plus misc fixes all around the map"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/arm64: Store Runtime Services revision
  firmware: Do not use WARN_ON(!spin_is_locked())
  x86_32, entry: Clean up sysenter_badsys declaration
  x86/doc: Fix the 'tlb_single_page_flush_ceiling' sysconfig path
  x86/mm: Fix sparse 'tlb_single_page_flush_ceiling' warning and make the variable read-mostly
  x86/mm: Fix RCU splat from new TLB tracepoints
2014-08-24 16:17:41 -07:00
Linus Torvalds 44744bb344 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "A kprobes and a perf compat ioctl fix"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Handle compat ioctl
  kprobes: Skip kretprobe hit in NMI context to avoid deadlock
2014-08-24 16:16:55 -07:00
Linus Torvalds 959dc2587d ARM: SoC fixes for 3.17-rc
A collection of fixes from this week, it's been pretty quiet and nothing
 really stands out as particularly noteworthy here -- mostly minor fixes
 across the field:
 
 - ODROID booting was fixed due to PMIC interrupts missing in DT
 - A collection of i.MX fixes
 - Minor Tegra fix for regulators
 - Rockchip fix and addition of SoC-specific mailing list to make it
   easier to find posted patches.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJT+jEaAAoJEIwa5zzehBx3gPIP/2EMvkRiFL73z6u67d6AhqCR
 UPpv65Lk0FzvKZYvpNdNDdPatS48SpEh4Ppj58HegK31jaZIYhsvGHFsAwrHpZXF
 2D2H8Vqy6wl+UL+BQGTHJ2rhqgg40PSZQh1KksaBrjb9MDWUbAI0V9AysoT6ecIP
 /02mzRkNPL7V5ISikksa82FWbZwI36KJGTM19ZDp6CYQnV2L4eG0LefGjgEzdE07
 iur1PO/TUi0ibQex3It9D+ynNlza0sZJDR0AsGFTS/96fvtX6SQzvxtEsr4jUfyT
 jceqD5KIWS9N1OmRudJ+e3awpzGGuRIkdq36eiJbhSe426LHgDNbIS4RU+YRNFIf
 9/bK4blcxGNnddsDTLUIyi+vykAm1ObAfGNNrKeA4z9lDw0QVuoG5VwrgNKcIk3J
 kugj3RLUQ5yd9iIFJyrPxlpB5mTo5SaPCSxjuDKzftwDQtF+SJI58V//Nde0Ocfw
 K7VpmY26uYUmf6AltiyFxOCUASzUC3Bp+/cf0lYTWE1+iIuOTJRlYmYwKDMrJ+c0
 mtz3uCiQhTzaHje6AksA1wlKhv3KS/opGN1oNVSILgjExiRGh94MSkROLqtJ35cE
 WV/nuzZUPdmZ6tGQ6b7FEa0elbEElaioDiQraOeSehKijEjfhK+tHNJczoO94s2R
 Swfff4NwRe346ZMk/L/2
 =+oYu
 -----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:
 "A collection of fixes from this week, it's been pretty quiet and
  nothing really stands out as particularly noteworthy here -- mostly
  minor fixes across the field:

   - ODROID booting was fixed due to PMIC interrupts missing in DT
   - a collection of i.MX fixes
   - minor Tegra fix for regulators
   - Rockchip fix and addition of SoC-specific mailing list to make it
     easier to find posted patches"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  bus: arm-ccn: Fix warning message
  ARM: shmobile: koelsch: Remove non-existent i2c6 pinmux
  ARM: tegra: apalis/colibri t30: fix on-module 5v0 supplies
  MAINTAINERS: add new Rockchip SoC list
  ARM: dts: rockchip: readd missing mmc0 pinctrl settings
  ARM: dts: ODROID i2c improvements
  ARM: dts: Enable PMIC interrupts on ODROID
  ARM: dts: imx6sx: fix the pad setting for uart CTS_B
  ARM: dts: i.MX53: fix apparent bug in VPU clks
  ARM: imx: correct gpu2d_axi and gpu3d_axi clock setting
  ARM: dts: imx6: edmqmx6: change enet reset pin
  ARM: dts: vf610-twr: Fix pinctrl_esdhc1 pin definitions.
  ARM: imx: remove unnecessary ARCH_HAS_OPP select
  ARM: imx: fix TLB missing of IOMUXC base address during suspend
  ARM: imx6: fix SMP compilation again
  ARM: dt: sun6i: Add #address-cells and #size-cells to i2c controller nodes
2014-08-24 15:57:00 -07:00
Linus Torvalds fa7f78e02e Fixes for the v3.17 series:
- A largeish fix for the IRQ handling in the new Zynq driver.
   The quite verbose commit message gives the exact details.
 - Move some defines for gpiod flags outside an ifdef to make
   stub functions work again.
 - Various minor fixes that we can accept for -rc1.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJT+ZCiAAoJEEEQszewGV1zOZEQALkGrQacC9pZdhw93+wumj/d
 goA4B1VSwi+vlQ3DcF7oXbTcbaYfGu58ZAlShc9XhVINaWEkVfc1GnBCq9rsnjNh
 /rPaqDpqqBo7tfghjsMIZFdlNH151u/4rCAFMUB/STOAlUckSCiqWdxd7wMhAPlZ
 yLD5oKqm3mWu/PX2n334rkLb1UxT1vIniB3DgQRhUtrKeYarH9OpzJnWnCCmspCr
 GeVWpq4Z851fHMok5D76EbLL57JykTCC7VjHyK9jrmbjpMFX6+lYmWWMCOgUHypi
 zA5ZEL7PjhhrZlwTN5yn8QbuSfbmT14tTUP/OLtItE0CYjF1nheyxueKErHT+DP4
 piLDZgdv79ZYBSbvfbpjeO5VLkZz3m7EAGp/0kWy89uGcwjVsk+zsDSDc0v09tTk
 hYRhu5/gc8zp3rd7v4DspSBbpxK+iI7uMzaGuv32AEdPvFzDVy4SJmRN/qTt/W9E
 KVAdk4OJdx7xb9ee9Z2OfdbteOt0zFQjmTIneZ0urlqOZCbvbFH4PvuPB4L81SCV
 XQ023OZqbBYb72Kz3Fw46NjMvRql3rkDph62oikEtfSKmSziMDY9z6bY42b0PCTq
 mSovoQduN06wRDy5VQA8H1h7VF3k8NXjTI2hMEV85VhxlCzhabukBf+HY37TQIhT
 pLQp0fwKmf8iZWtuF4Of
 =7iYA
 -----END PGP SIGNATURE-----

Merge tag 'gpio-v3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull gpio fixes from Linus Walleij:

 - a largeish fix for the IRQ handling in the new Zynq driver.  The
   quite verbose commit message gives the exact details.
 - move some defines for gpiod flags outside an ifdef to make stub
   functions work again.
 - various minor fixes that we can accept for -rc1.

* tag 'gpio-v3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio-lynxpoint: enable input sensing in resume
  gpio: move GPIOD flags outside #ifdef
  gpio: delete unneeded test before of_node_put
  gpio: zynq: Fix IRQ handlers
  gpiolib: devres: use correct structure type name in sizeof
  MAINTAINERS: Change maintainer for gpio-bcm-kona.c
2014-08-24 15:54:23 -07:00
Linus Torvalds 5e30ca1e44 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Intel and radeon fixes.

  Post KS/LC git requests from i915 and radeon stacked up.  They are all
  fixes along with some new pci ids for radeon, and one maintainers file
  entry.

   - i915: display fixes and irq fixes
   - radeon: pci ids, and misc gpuvm, dpm and hdp cache"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (29 commits)
  MAINTAINERS: Add entry for Renesas DRM drivers
  drm/radeon: add additional SI pci ids
  drm/radeon: add new bonaire pci ids
  drm/radeon: add new KV pci id
  Revert "drm/radeon: Use write-combined CPU mappings of ring buffers with PCIe"
  drm/radeon: fix active_cu mask on SI and CIK after re-init (v3)
  drm/radeon: fix active cu count for SI and CIK
  drm/radeon: re-enable selective GPUVM flushing
  drm/radeon: Sync ME and PFP after CP semaphore waits v4
  drm/radeon: fix display handling in radeon_gpu_reset
  drm/radeon: fix pm handling in radeon_gpu_reset
  drm/radeon: Only flush HDP cache for indirect buffers from userspace
  drm/radeon: properly document reloc priority mask
  drm/i915: don't try to retrain a DP link on an inactive CRTC
  drm/i915: make sure VDD is turned off during system suspend
  drm/i915: cancel hotplug and dig_port work during suspend and unload
  drm/i915: fix HPD IRQ reenable work cancelation
  drm/i915: take display port power domain in DP HPD handler
  drm/i915: Don't try to enable cursor from setplane when crtc is disabled
  drm/i915: Skip load detect when intel_crtc->new_enable==true
  ...
2014-08-24 15:48:12 -07:00
Benjamin LaHaise d856f32a86 aio: fix reqs_available handling
As reported by Dan Aloni, commit f8567a3845 ("aio: fix aio request
leak when events are reaped by userspace") introduces a regression when
user code attempts to perform io_submit() with more events than are
available in the ring buffer.  Reverting that commit would reintroduce a
regression when user space event reaping is used.

Fixing this bug is a bit more involved than the previous attempts to fix
this regression.  Since we do not have a single point at which we can
count events as being reaped by user space and io_getevents(), we have
to track event completion by looking at the number of events left in the
event ring.  So long as there are as many events in the ring buffer as
there have been completion events generate, we cannot call
put_reqs_available().  The code to check for this is now placed in
refill_reqs_available().

A test program from Dan and modified by me for verifying this bug is available
at http://www.kvack.org/~bcrl/20140824-aio_bug.c .

Reported-by: Dan Aloni <dan@kernelim.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Acked-by: Dan Aloni <dan@kernelim.com>
Cc: Kent Overstreet <kmo@daterainc.com>
Cc: Mateusz Guzik <mguzik@redhat.com>
Cc: Petr Matousek <pmatouse@redhat.com>
Cc: stable@vger.kernel.org      # v3.16 and anything that f8567a3845 was backported to
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-24 15:47:27 -07:00
Pawel Moll bf87bb12bd bus: arm-ccn: Fix warning message
A message warning a user about wrong vc value was printing
out port instead.

Reported-by: Drew Richardson <drew.richardson@arm.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-24 11:28:30 -07:00
Geert Uytterhoeven 12266db732 ARM: shmobile: koelsch: Remove non-existent i2c6 pinmux
On r8a7791, i2c6 (aka iic3) doesn't need pinmux, but the koelsch dts
refers to non-existent pinmux configuration data:

pinmux core: sh-pfc does not support function i2c6
sh-pfc e6060000.pfc: invalid function i2c6 in map table

Remove it to fix this.

Fixes: commit 1d41f36a68 ("ARM: shmobile:
       koelsch dts: Add VDD MPU regulator for DVFS")

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-24 11:23:28 -07:00
Marcel Ziswiler caa9eac5bc ARM: tegra: apalis/colibri t30: fix on-module 5v0 supplies
Working on Gigabit/PCIe support in U-Boot for Apalis T30 I realised
that the current device tree source includes for our modules only
happen to work due to referencing the on-carrier 5v0 supply from USB
which is not at all available on-module. The modules actually contain
TPS60150 charge pumps to generate the PMIC required 5 volts from the
one and only 3.3 volt module supply. This patch fixes this.

(Note: When back-porting this to v3.16 stable releases, simply drop the
change to tegra30-apalis.dtsi; that file was added in v3.17)

Cc: <stable@vger.kernel.org> #v3.16+
Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-24 11:21:19 -07:00
Olof Johansson 9d0b1f345e Pinctrl that got accidentially dropped when reorganizing the
dts files and addition of the new Rockchip list to MAINTAINERS.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABCAAGBQJT+hwkAAoJEPOmecmc0R2Bda4IAJ7rxypWxi8RtfxULHu1oGxZ
 cdmAsaedAkjTn6tye/99lv1WkLzUD+Q3AxLX6Glu8PgTkocbwtkVTP+gMbv7zwfN
 Z9bA6kazPL4Rskr6Am8BFKkGhXHCXChGP1J3z9Gyh07Vu2+3zsvRzyM7hySt3TqZ
 EA2dL/uODlukw6EPzFaqGWZLn1OuJmkHXDfnZ3lBI/GFZD9qt5DnYswMBlDlIwr6
 D08jmcleRA3wpnY1HXYR2cN1sJmcEP6xVE8ApXd71X0MtumEy49ZTR+4T5/Sh/XN
 OPheoH3UUVtXVrAa5fsoUE2xsKs3PZgnIHk1kQklpbw+HArbN+aW0Jh6CySb65Q=
 =aNJj
 -----END PGP SIGNATURE-----

Merge tag 'v3.17-rockchip-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into fixes

Merge "ARM: rockchip: fix for 3.17" from Heiko Stubner:

Pinctrl that got accidentially dropped when reorganizing the
dts files and addition of the new Rockchip list to MAINTAINERS.

* tag 'v3.17-rockchip-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  MAINTAINERS: add new Rockchip SoC list
  ARM: dts: rockchip: readd missing mmc0 pinctrl settings

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-24 11:19:58 -07:00
Laurent Pinchart a284e9d14e MAINTAINERS: Add entry for Renesas DRM drivers
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2014-08-24 16:37:47 +10:00
Dave Airlie db314f2310 Merge branch 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linux into drm-next
This pull just contains some new pci ids.

* 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: add additional SI pci ids
  drm/radeon: add new bonaire pci ids
  drm/radeon: add new KV pci id
2014-08-24 15:47:46 +10:00
Heiko Stuebner 00250b5293 MAINTAINERS: add new Rockchip SoC list
Add the new list that Rockchip-specific patches should also be directed to.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2014-08-23 13:22:05 +02:00
Heiko Stuebner 1302d32c84 ARM: dts: rockchip: readd missing mmc0 pinctrl settings
During the restructuring of the Rockchip Cortex-A9 dtsi files it seems
like the pinctrl settings vanished at some point from the mmc0 support.

This of course renders them unusable, so readd the necessary pinctrl
properties.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2014-08-23 13:21:45 +02:00
Olof Johansson 2136edf3bf Allwinner DT changes, take 2
Only a single patch in here that fixes a DTC warning.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJT2hD6AAoJEBx+YmzsjxAgV9YP/1wML2m04CODnLmLhKyx1GyM
 VyBoEHb+o7P7TRyK7ePIVkGhGnQjYGMyXAI2KfOiBJpAl23uxXCXSNKc6WY+nBAw
 6T6qL6w+tPIPW4B79fAjmoPksqhoVf9sAKAkdu6+ETwKMHRaF0IesPRTg9t21Wcd
 yHHDY4z/qaFCMV59zeOIWMxM0V0gvUa46+bXC2flyTcTz5RgyUswCOXKHLvXfK1L
 w8B+V34AeBtm2EzG6co1iOJVRKXlrjzUg25+adbRissNfvmVkPwYkQJNoBO6r/PO
 Rxf7Mq50oovPl/Oc83e3RZl3tE8ds12t+ScS0qUFq6+tBvyq53IYP+51IhDOGiR3
 a6PB1nPEXtvUt09xv5SPJiRsB+BFrh5hx+qWbDvUNQL5FZrqBxa63H6qArybFQXg
 GaY8Zv5gdiMvAU0tdk7v4pduJkvvoG2GALGHPrcKmrpg2+qQ4LDKOJxErIEqOUi2
 ERp7c0kODDz18F9OmjGYU2R7XT6Ji8h4MS/hbCiLajcboQMe3yClrcVB8ts+AUKJ
 NSDWl5Q0/8uHhk40FAaGYEqVLakk8vhXwdg1hpcXzIg3dJg+P09dYK5nIOBzKIok
 +eVXZ8xjcRnoBAumljZ3eGbTuysGDO95E56coDPE4IiAe4Esi7kl3fUS/NICoOGs
 MC9tjeyMoscy+hoGsP57
 =PL45
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-dt-for-3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes

Merge "Allwinner DT changes, take 2" from Maxime Ripard:

Only a single patch in here that fixes a DTC warning.

* tag 'sunxi-dt-for-3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: dt: sun6i: Add #address-cells and #size-cells to i2c controller nodes

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-22 22:57:57 -07:00
Steven Rostedt (Red Hat) 39b5552cd5 ftrace: Use current addr when converting to nop in __ftrace_replace_code()
In __ftrace_replace_code(), when converting the call to a nop in a function
it needs to compare against the "curr" (current) value of the ftrace ops, and
not the "new" one. It currently does not affect x86 which is the only arch
to do the trampolines with function graph tracer, but when other archs that do
depend on this code implement the function graph trampoline, it can crash.

Here's an example when ARM uses the trampolines (in the future):

 ------------[ cut here ]------------
 WARNING: CPU: 0 PID: 9 at kernel/trace/ftrace.c:1716 ftrace_bug+0x17c/0x1f4()
 Modules linked in: omap_rng rng_core ipv6
 CPU: 0 PID: 9 Comm: migration/0 Not tainted 3.16.0-test-10959-gf0094b28f303-dirty #52
 [<c02188f4>] (unwind_backtrace) from [<c021343c>] (show_stack+0x20/0x24)
 [<c021343c>] (show_stack) from [<c095a674>] (dump_stack+0x78/0x94)
 [<c095a674>] (dump_stack) from [<c02532a0>] (warn_slowpath_common+0x7c/0x9c)
 [<c02532a0>] (warn_slowpath_common) from [<c02532ec>] (warn_slowpath_null+0x2c/0x34)
 [<c02532ec>] (warn_slowpath_null) from [<c02cbac4>] (ftrace_bug+0x17c/0x1f4)
 [<c02cbac4>] (ftrace_bug) from [<c02cc44c>] (ftrace_replace_code+0x80/0x9c)
 [<c02cc44c>] (ftrace_replace_code) from [<c02cc658>] (ftrace_modify_all_code+0xb8/0x164)
 [<c02cc658>] (ftrace_modify_all_code) from [<c02cc718>] (__ftrace_modify_code+0x14/0x1c)
 [<c02cc718>] (__ftrace_modify_code) from [<c02c7244>] (multi_cpu_stop+0xf4/0x134)
 [<c02c7244>] (multi_cpu_stop) from [<c02c6e90>] (cpu_stopper_thread+0x54/0x130)
 [<c02c6e90>] (cpu_stopper_thread) from [<c0271cd4>] (smpboot_thread_fn+0x1ac/0x1bc)
 [<c0271cd4>] (smpboot_thread_fn) from [<c026ddf0>] (kthread+0xe0/0xfc)
 [<c026ddf0>] (kthread) from [<c020f318>] (ret_from_fork+0x14/0x20)
 ---[ end trace dc9ce72c5b617d8f ]---
[   65.047264] ftrace failed to modify [<c0208580>] asm_do_IRQ+0x10/0x1c
[   65.054070]  actual: 85:1b:00:eb

Fixes: 7413af1fb7 "ftrace: Make get_ftrace_addr() and get_ftrace_addr_old() global"
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-08-22 21:04:35 -04:00
Steven Rostedt (Red Hat) 5f151b2401 ftrace: Fix function_profiler and function tracer together
The latest rewrite of ftrace removed the separate ftrace_ops of
the function tracer and the function graph tracer and had them
share the same ftrace_ops. This simplified the accounting by removing
the multiple layers of functions called, where the global_ops func
would call a special list that would iterate over the other ops that
were registered within it (like function and function graph), which
itself was registered to the ftrace ops list of all functions
currently active. If that sounds confusing, the code that implemented
it was also confusing and its removal is a good thing.

The problem with this change was that it assumed that the function
and function graph tracer can never be used at the same time.
This is mostly true, but there is an exception. That is when the
function profiler uses the function graph tracer to profile.
The function profiler can be activated the same time as the function
tracer, and this breaks the assumption and the result is that ftrace
will crash (it detects the error and shuts itself down, it does not
cause a kernel oops).

To solve this issue, a previous change allowed the hash tables
for the functions traced by a ftrace_ops to be a pointer and let
multiple ftrace_ops share the same hash. This allows the function
and function_graph tracer to have separate ftrace_ops, but still
share the hash, which is what is done.

Now the function and function graph tracers have separate ftrace_ops
again, and the function tracer can be run while the function_profile
is active.

Cc: stable@vger.kernel.org # 3.16 (apply after 3.17-rc4 is out)
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-08-22 21:04:34 -04:00
David Jeffery 92a56555bd nfs: Don't busy-wait on SIGKILL in __nfs_iocounter_wait
If a SIGKILL is sent to a task waiting in __nfs_iocounter_wait,
it will busy-wait or soft lockup in its while loop.
nfs_wait_bit_killable won't sleep, and the loop won't exit on
the error return.

Stop the busy-wait by breaking out of the loop when
nfs_wait_bit_killable returns an error.

Signed-off-by: David Jeffery <djeffery@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-08-22 18:04:44 -04:00
Weston Andros Adamson 78270e8fbc nfs: can_coalesce_requests must enforce contiguity
Commit 6094f83864
"nfs: allow coalescing of subpage requests" got rid of the requirement
that requests cover whole pages, but it made some incorrect assumptions.

It turns out that callers of this interface can map adjacent requests
(by file position as seen by req_offset + req->wb_bytes) to different pages,
even when they could share a page. An example is the direct I/O interface -
iov_iter_get_pages_alloc may return one segment with a partial page filled
and the next segment (which is adjacent in the file position) starts with a
new page.

Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-08-22 18:04:44 -04:00
Weston Andros Adamson bba5c1887a nfs: disallow duplicate pages in pgio page vectors
Adjacent requests that share the same page are allowed, but should only
use one entry in the page vector. This avoids overruning the page
vector - it is sized based on how many bytes there are, not by
request count.

This fixes issues that manifest as "Redzone overwritten" bugs (the
vector overrun) and hangs waiting on page read / write, as it waits on
the same page more than once.

This also adds bounds checking to the page vector with a graceful failure
(WARN_ON_ONCE and pgio error returned to application).

Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-08-22 18:04:44 -04:00
Weston Andros Adamson 7c3af97525 nfs: don't sleep with inode lock in lock_and_join_requests
This handles the 'nonblock=false' case in nfs_lock_and_join_requests.
If the group is already locked and blocking is allowed, drop the inode lock
and wait for the group lock to be cleared before trying it all again.
This should fix warnings found in peterz's tree (sched/wait branch), where
might_sleep() checks are added to wait.[ch].

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Reviewed-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-08-22 18:04:43 -04:00
Weston Andros Adamson 94970014c4 nfs: fix error handling in lock_and_join_requests
This fixes handling of errors from nfs_page_group_lock in
nfs_lock_and_join_requests.  It now releases the inode lock and the
reference to the head request.

Reported-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Reviewed-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-08-22 18:04:43 -04:00
Weston Andros Adamson bfd484a560 nfs: use blocking page_group_lock in add_request
__nfs_pageio_add_request was calling nfs_page_group_lock nonblocking, but
this can return -EAGAIN which would end up passing -EIO to the application.

There is no reason not to block in this path, so change the two calls to
do so. Also, there is no need to check the return value of
nfs_page_group_lock when nonblock=false, so remove the error handling code.

Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Reviewed-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-08-22 18:04:43 -04:00
Weston Andros Adamson bc8a309e88 nfs: fix nonblocking calls to nfs_page_group_lock
nfs_page_group_lock was calling wait_on_bit_lock even when told not to
block. Fix by first trying test_and_set_bit, followed by wait_on_bit_lock
if and only if blocking is allowed.  Return -EAGAIN if nonblocking and the
test_and_set of the bit was already locked.

Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Reviewed-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-08-22 18:04:42 -04:00
Weston Andros Adamson fd2f3a06d3 nfs: change nfs_page_group_lock argument
Flip the meaning of the second argument from 'wait' to 'nonblock' to
match related functions. Update all five calls to reflect this change.

Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Reviewed-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-08-22 18:04:42 -04:00
Linus Torvalds 451fd72219 pwm: Fixes for v3.17-rc2
Just one bugfix for the PWM lookup table code that would cause a PWM
 channel to be set to the wrong period and polarity for non-perfect
 matches.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJT8cLVAAoJEN0jrNd/PrOhRiQP/10av7t2Ahdn3Qi2imz5j3UO
 lA73tzU36MEchsNoDkYnLwZik6x/3GYk7QUkPoyMFYcay1Wu/USj5hTuZl2phOtF
 9tdqkKosrV7APJfpzfuoj6W2FtKBIV4iaxez+ZrqXXKj4BdKXGFvv72w4xf/EWE9
 aPabqg3lvorZY42adqbqH5kbATd61FJPZktwzKfmg7O01Wnp2GL3xCPApq9CsBEQ
 c7i9TR1ttEQZNM6RRs7auwgRNgbuxFZkXRSP5VFbFb1TB3OMCDcGY+PXab42SYLR
 ztlUao93jZP9Dz7abIGHcZDgRpj7i6veu09RAH6C1Lr0ovvcTor69LlsgvaWQKKb
 8CMiKGpLVF3Sg3wLwrSRgUb7FMNVc/R1lR//BtMMTxFcVNTvxc18Tl41azx3kZEt
 UobQ3IzpalOlJTj1ADzUwws9alcgnD5hD6SEQJwwuqEzJTB4FeTepnrr4VgAA1oM
 HU8+TzSdZLV0lDIl43rKj0kZ93ds3i2lM/FU6e0Z4bZT1K53J9a4iQsKJIFy83An
 bcT0lr1kgBTHoBvSnCLsSB6ZmWZ3rmnQ6kIWv/nfzcQKQdNLMpyEbb1xComM/SOI
 VjaIf/OaTa9h1QswSS2kYZpOguNiQkzRQtDsH4Pr0UgG7g7A5kofjsaP1VZRjcCq
 FEFj0Zi+aHYX/UKDNa72
 =SmTb
 -----END PGP SIGNATURE-----

Merge tag 'pwm/for-3.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm fix from Thierry Reding:
 "Just one bugfix for the PWM lookup table code that would cause a PWM
  channel to be set to the wrong period and polarity for non-perfect
  matches"

* tag 'pwm/for-3.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: Fix period and polarity in pwm_get() for non-perfect matches
2014-08-22 14:50:21 -07:00
Michal Kazior 47e4df94d1 mac80211: fix channel switch for chanctx-based drivers
The new_ctx pointer is set only for non-chanctx drivers.  This yielded a
crash for chanctx-based drivers during channel switch finalization:

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000020
  IP: ieee80211_vif_use_reserved_switch+0x71c/0xb00 [mac80211]

Use an adequate chanctx pointer to fix this.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-22 14:45:49 -07:00
Linus Torvalds 433ab34d26 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "Here are some bug fixes that have piled up during ksummit/linuxcon.

   1) Fix endian problems in ibmveth, from Anton Blanchard.

   2) IPV6 routing code does GFP_KERNEL allocation in atomic, fix from
      Benjamin Block.

   3) SCTP association fixes from Daniel Borkmann.

   4) When multiple VLAN headers are present we have to make sure the
      second and subsequent ones are pullable in the SKB otherwise we
      blindly dereference garbage.  From Jiri Benc.

   5) The argument adjustment of the signature of hlist_add_after*()
      introduced a regression in the batman-adv code, fix from Sven
      Eckelmann.

   6) Fix TX hang handling to avoid a panic in i40e, from Anjali Singhai
      Jain.

   7) PTP flag test is inverted in i40e driver, from Jesse Brandeburg.

   8) ATM LEC driver needs to hold RTNL mutex over MTU changes, from
      Chas Williams.

   9) Truncate packets larger then the TPACKET_V3 format configured
      buffers, otherwise we overwrite past the end of said buffers.
      From Eric Dumazet.

  10) Fix endianness bugs in qlcnic firmware handling, from Rajesh
      Borundia and Shahed Shaikh.

  11) CXGB4 sometimes doesn't get all of the TX completion events it
      should resulting in SKBs getting stuck in the TX queue, from
      Hariprasad Shenai.

  12) When the FEC chip's PTP clock is disabled, you can't access the
      register.  Add necessary checks to avoid the resulting hang, from
      Fugang Duan"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (37 commits)
  drivers: isdn: eicon: xdi_msg.h: Fix typo in #ifndef
  net: sctp: fix suboptimal edge-case on non-active active/retrans path selection
  net: sctp: spare unnecessary comparison in sctp_trans_elect_best
  net: ethernet: broadcom: bnx2x: Remove redundant #ifdef
  ibmveth: Fix endian issues with rx_no_buffer statistic
  net: xgene: fix possible NULL dereference in xgene_enet_free_desc_rings()
  openvswitch: fix panic with multiple vlan headers
  net: ipv6: fib: don't sleep inside atomic lock
  net: fec: ptp: avoid register access when ipg clock is disabled
  cxgb4: Free completed tx skbs promptly
  cxgb4: Fix race condition in cleanup
  sctp: not send SCTP_PEER_ADDR_CHANGE notifications with failed probe
  bnx2x: Revert UNDI flushing mechanism
  qlcnic: Fix endianess issue in firmware load from file operation
  qlcnic: Fix endianess issue in FW dump template header
  qlcnic: Fix flash access interface to application
  MAINTAINERS: Add section for MRF24J40 IEEE 802.15.4 radio driver
  macvlan: Allow setting multicast filter on all macvlan types
  packet: handle too big packets for PACKET_V3
  MAINTAINERS: add entry for ec_bhf driver
  ...
2014-08-22 14:33:18 -07:00
Steven Rostedt (Red Hat) bce0b6c51a ftrace: Fix up trampoline accounting with looping on hash ops
Now that a ftrace_hash can be shared by multiple ftrace_ops, they can dec
the rec->flags by more than once (one per those that share the ftrace_hash).
This means that the tramp_hash may not have a hash item when it was added.

For example, if two ftrace_ops share a hash for a ftrace record, and the
first ops has a trampoline, when it adds itself it will set the rec->flags
TRAMP flag and increments its nr_trampolines counter. When the second ops
is added, it must clear that tramp flag but also decrement the other ops
that shares its hash. As the update to the function callbacks has not yet
been performed, the other ops will not have the tramp hash set yet and it
can not be used to know to decrement its nr_trampolines.

Luckily, the tramp_hash does not need to be used. As the ftrace_mutex is
held, a ops with a trampoline to a record during an update of another ops
that shares the record will have its func_hash pointing to it. Since a
trampoline can only be set for a record if only one ops is attached to it,
we can just check if the record has a trampoline (the FTRACE_FL_TRAMP flag
is set) and then find the ops that has this record in its hashes.

Also added some output to help debug when things go wrong.

Cc: stable@vger.kernel.org # 3.16+ (apply after 3.17-rc4 is out)
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-08-22 15:24:12 -04:00
Rasmus Villemoes faaa55241f drivers: isdn: eicon: xdi_msg.h: Fix typo in #ifndef
Test for definedness of the macro which is actually defined (the
change is hard to see: it is s/SSS/SSA/).

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:31:30 -07:00
Daniel Borkmann aa4a83ee8b net: sctp: fix suboptimal edge-case on non-active active/retrans path selection
In SCTP, selection of active (T.ACT) and retransmission (T.RET)
transports is being done whenever transport control operations
(UP, DOWN, PF, ...) are engaged through sctp_assoc_control_transport().

Commits 4c47af4d5e ("net: sctp: rework multihoming retransmission
path selection to rfc4960") and a7288c4dd5 ("net: sctp: improve
sctp_select_active_and_retran_path selection") have both improved
it towards a more fine-grained and optimal path selection.

Currently, the selection algorithm for T.ACT and T.RET is as follows:

1) Elect the two most recently used ACTIVE transports T1, T2 for
   T.ACT, T.RET, where T.ACT<-T1 and T1 is most recently used
2) In case primary path T.PRI not in {T1, T2} but ACTIVE, set
   T.ACT<-T.PRI and T.RET<-T1
3) If only T1 is ACTIVE from the set, set T.ACT<-T1 and T.RET<-T1
4) If none is ACTIVE, set T.ACT<-best(T.PRI, T.RET, T3) where
   T3 is the most recently used (if avail) in PF, set T.RET<-T.PRI

Prior to above commits, 4) was simply a camp on T.ACT<-T.PRI and
T.RET<-T.PRI, ignoring possible paths in PF. Camping on T.PRI is
still slightly suboptimal as it can lead to the following scenario:

Setup:
        <A>                                <B>
    T1: p1p1 (10.0.10.10) <==>  .'`)  <==> p1p1 (10.0.10.12)  <= T.PRI
    T2: p1p2 (10.0.10.20) <==> (_ . ) <==> p1p2 (10.0.10.22)

    net.sctp.rto_min = 1000
    net.sctp.path_max_retrans = 2
    net.sctp.pf_retrans = 0
    net.sctp.hb_interval = 1000

T.PRI is permanently down, T2 is put briefly into PF state (e.g. due to
link flapping). Here, the first time transmission is sent over PF path
T2 as it's the only non-INACTIVE path, but the retransmitted data-chunks
are sent over the INACTIVE path T1 (T.PRI), which is not good.

After the patch, it's choosing better transports in both cases by
modifying step 4):

4) If none is ACTIVE, set T.ACT_new<-best(T.ACT_old, T3) where T3 is
   the most recently used (if avail) in PF, set T.RET<-T.ACT_new

This will still select a best possible path in PF if available (which
can also include T.PRI/T.RET), and set both T.ACT/T.RET to it.

In case sctp_assoc_control_transport() *just* put T.ACT_old into INACTIVE
as it transitioned from ACTIVE->PF->INACTIVE and stays in INACTIVE just
for a very short while before going back ACTIVE, it will guarantee that
this path will be reselected for T.ACT/T.RET since T3 (PF) is not
available.

Previously, this was not possible, as we would only select between T.PRI
and T.RET, and a possible T3 would be NULL due to the fact that we have
just transitioned T3 in sctp_assoc_control_transport() from PF->INACTIVE
and would select a suboptimal path when T.PRI/T.RET have worse properties.

In the case that T.ACT_old permanently went to INACTIVE during this
transition and there's no PF path available, plus T.PRI and T.RET are
INACTIVE as well, we would now camp on T.ACT_old, but if everything is
being INACTIVE there's really not much we can do except hoping for a
successful HB to bring one of the transports back up again and, thus
cause a new selection through sctp_assoc_control_transport().

Now both tests work fine:

Case 1:

 1. T1 S(ACTIVE) T.ACT
    T2 S(ACTIVE) T.RET

 2. T1 S(ACTIVE) T.ACT, T.RET
    T2 S(PF)

 3. T1 S(ACTIVE) T.ACT, T.RET
    T2 S(INACTIVE)

 5. T1 S(PF) T.ACT, T.RET
    T2 S(INACTIVE)

[ 5.1 T1 S(INACTIVE) T.ACT, T.RET
      T2 S(INACTIVE) ]

 6. T1 S(ACTIVE) T.ACT, T.RET
    T2 S(INACTIVE)

 7. T1 S(ACTIVE) T.ACT
    T2 S(ACTIVE) T.RET

Case 2:

 1. T1 S(ACTIVE) T.ACT
    T2 S(ACTIVE) T.RET

 2. T1 S(PF)
    T2 S(ACTIVE) T.ACT, T.RET

 3. T1 S(INACTIVE)
    T2 S(ACTIVE) T.ACT, T.RET

 5. T1 S(INACTIVE)
    T2 S(PF) T.ACT, T.RET

[ 5.1 T1 S(INACTIVE)
      T2 S(INACTIVE) T.ACT, T.RET ]

 6. T1 S(INACTIVE)
    T2 S(ACTIVE) T.ACT, T.RET

 7. T1 S(ACTIVE) T.ACT
    T2 S(ACTIVE) T.RET

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:31:30 -07:00
Daniel Borkmann ea4f19c1f8 net: sctp: spare unnecessary comparison in sctp_trans_elect_best
When both transports are the same, we don't have to go down that
road only to realize that we will return the very same transport.
We are guaranteed that curr is always non-NULL. Therefore, just
short-circuit this special case.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:31:30 -07:00
Rasmus Villemoes 7d149c5268 net: ethernet: broadcom: bnx2x: Remove redundant #ifdef
Nothing defines _ASM_GENERIC_INT_L64_H, it is a weird way to check for
64 bit longs, and u64 should be printed using %llx anyway.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:29:58 -07:00