Commit Graph

562094 Commits

Author SHA1 Message Date
Stefan Agner 9c17190595 ARM: dts: vf610: use reset values for L2 cache latencies
Linux on Vybrid used several different L2 latencies so far, none
of them seem to be the right ones. According to the application note
AN4947 ("Understanding Vybrid Architecture"), the tag portion runs
on CPU clock and is inside the L2 cache controller, whereas the data
portion is stored in the external SRAM running on platform clock.
Hence it is likely that the correct value requires a higher data
latency then tag latency.

These are the values which have been used so far:
- The mainline values:
  arm,data-latency = <1 1 1>;
  arm,tag-latency = <2 2 2>;
  Those values have lead to problems on higher clocks. They look
  like a poor translation from the reset values (missing +1 offset
  and a mix up between tag/latency values).
- The Linux 3.0 (SoC vendor BSP) values (converted to DT notation):
  arm,data-latency = <4 2 3>
  arm,tag-latency = <4 2 3>
  The cache initialization function along with the value matches the
  i.MX6 code from the same kernel, so it seems that those values have
  just been copied.
- The Colibri values:
  arm,data-latency = <2 1 2>;
  arm,tag-latency = <3 2 3>;
  Those were a mix between the values of the Linux 3.0 based BSP and
  the mainline values above.
- The SoC Reset values (converted to DT notation):
  arm,data-latency = <3 3 3>;
  arm,tag-latency = <2 2 2>;

So far there is no official statement on what the correct values are.
See also the related Freescale community thread:
https://community.freescale.com/message/579785#579785

For now, the reset values seem to be the best bet. Remove all other
"bogus" values and use the reset value on vf610.dtsi level.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-12-11 21:32:47 +08:00
Kirill A. Shutemov 9f5bd30818 vgaarb: fix signal handling in vga_get()
There are few defects in vga_get() related to signal hadning:

  - we shouldn't check for pending signals for TASK_UNINTERRUPTIBLE
    case;

  - if we found pending signal we must remove ourself from wait queue
    and change task state back to running;

  - -ERESTARTSYS is more appropriate, I guess.

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Cc: stable@vger.kernel.org
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-12-11 14:04:44 +10:00
Dave Airlie 49307da31b Merge branch 'drm-fixes-4.4' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
some big endian fixes and one regression fix.

* 'drm-fixes-4.4' of git://people.freedesktop.org/~agd5f/linux:
  radeon: Fix VCE IB test on Big-Endian systems
  radeon: Fix VCE ring test for Big-Endian systems
  radeon/cik: Fix GFX IB test on Big-Endian
  drm/amdgpu: fix the lost duplicates checking
2015-12-11 14:04:09 +10:00
Arnd Bergmann dde8fdcf66 Few fixes for omaps for v4.4-rc cycle:
- Fix clock source for ARM TWD and global timers on am437x
 
 - Always select REGULATOR_FIXED_VOLTAGE for omap2+ instead of
   when MACH_OMAP3_PANDORA is selected
 
 - Fix SPI DMA handles for dm816x as only some were mapped
 
 - Fix up mbox cells for dm816x to make mailbox usable
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWagyXAAoJEBvUPslcq6VzgtMQALtMaX5bGf7HBi8LEQ1M1dAk
 PPwC7OihDrVFsLccfLs3uVrLgpiqQfAF97OHMdoN5LZf37au52WMGKMwZyncHjSZ
 MCtFbs7LpxCsly0CPq1Gy28cy3YIxJtdxN2T9acxt73zLDvYRHw9VYnRNdo1mQYZ
 rsPu1WKDA6vPPZkDF2nmGcrGdKYvTQywfe3TddnF02/1UvJcE01rO4mSIJ4UGPqz
 P4pggFbSMVeW/UFwyGIcXtC6Cp56o5A74WMb8GMzBNT9bHPAJiUyXkWqTT7T27JE
 BsMKlIG5Sn6qu6M7AbZgKOdA4DmvFZP3IZADQimOyOGegYjQnQ2P84rYt419BBs5
 ji8jlsFGExO8cklAaZjBhgshxqC2WyQC+k7W2xQ8+X1hmKdh1cZtl8AcriD7wUIm
 DBp8JzY5cFbPByMMEg16WUBaE6Uar97vlH+Vxq+pw29oGb9V0Z5WvDUW903LQDJZ
 G5pPugN85I4TGUrAw90/rUHINaHDVYsFZvKIO3pndMTZx86lzZrx0TRRMchJ7MVe
 w7LRzugxda9ENTSY9aipBbRYLMmKzhBTzTJPrQVqBS/Choqk9CFkAW005BKPJRos
 Pc+VrfduL8zXwSO6MlAr4l5E3MyGTqGs6rGBzxk5MWnNdkqfPXakh+SMzxSWLYAa
 AYSRB/dZthSdAh8Cw/Q3
 =2YO/
 -----END PGP SIGNATURE-----

Merge tag 'omap-for-v4.4/fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "omap fixes against v4.4-rc4" from Tony Lindgren

Few fixes for omaps for v4.4-rc cycle:

- Fix clock source for ARM TWD and global timers on am437x

- Always select REGULATOR_FIXED_VOLTAGE for omap2+ instead of
  when MACH_OMAP3_PANDORA is selected

- Fix SPI DMA handles for dm816x as only some were mapped

- Fix up mbox cells for dm816x to make mailbox usable

* tag 'omap-for-v4.4/fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: am4372: fix clock source for arm twd and global timers
  ARM: OMAP2+: enable REGULATOR_FIXED_VOLTAGE
  ARM: dts: add dm816x missing spi DT dma handles
  ARM: dts: add dm816x missing #mbox-cells
2015-12-11 00:42:38 +01:00
Arnd Bergmann ddd47fbcf6 ARM: pxa: use PWM lookup table for all machines
The recent change to use a pwm lookup table for the ezx machines
was incomplete and only changed the a780 model, but not the
other ones in the same file.

This adds the missing calls to pwm_add_table().

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: c332202289 ("ARM: pxa: ezx: Use PWM lookup table")
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
2015-12-11 00:27:58 +01:00
Arnd Bergmann e229213dd0 Marvell Berlin fixes for 4.4-rc1 (round 1)
- fix wrong SDIO DT clocks on BG2Q
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWads3AAoJEN2kpao7fSL41wMP/RNq6+7zbCVhmvNenbRS6Y76
 F/rlorhNf3RVSkuhH1EyDhWv9z1Dzbf9vB1ylMdHzjSRU+sj3UF1HMNFshiTX2yG
 cFQD2zUaYhgqa2nYay3m4vsNVTkzGNEAGe4ZDQQq/4RJqsY7fmjx1KSrEhC3dihU
 1f61mLSHD+nWxXZn/E8yYf32z+F6PLLqrcoOBzBeJSoGMp9avVgjsFTbYAcghbjC
 zfYQ2VL1VCXakRrzDas1h8/W6JzcrdNDIezFDGdmQK6frCGkfveCh6mh3Cy4fZY5
 ILqJhg+l5f//ProbpoJXDArUfekLcTuE569RFPPXhQSqbrDOTvGZx0gWUYTm0f7g
 NkqkOAJJt9gY5vfZ0EwC5Lxz3GT4z2ULQ3pgpng+9YHUsVx8AlgGbVxPadUPV5Fl
 aloRGaKIYnmqFWx5DiJrT/jHuIb/VAvUBJPHrdxa9+ol36qiSpPPiuW7oS1ivvhr
 rW13LMfw8tkjTu2ddPem2m8An6gvvzwaKooHwa3OIDpEdAw9oqXiKHrzZUeKPdMJ
 1OaCPsn0rnUpxVh6zxgJyKe8CIjiys7AeG71oavPL9SGSpsHRShBTnzmvRjBXsg+
 JeZTg2dDu1IQW9NkU3v1R2IKIeT00RDO8thMixDMBxibRJf+ERN/+tlUTUB7drn9
 4melDsVJnpXsLWlOC9a6
 =TWl9
 -----END PGP SIGNATURE-----

Merge tag 'berlin-fixes-for-4.4-rc1-1' of git://git.infradead.org/users/hesselba/linux-berlin into fixes

Merge "Marvell Berlin fixes for 4.4-rc1 (round 1)" from Sebastian Hesselbarth:

- fix wrong SDIO DT clocks on BG2Q

* tag 'berlin-fixes-for-4.4-rc1-1' of git://git.infradead.org/users/hesselba/linux-berlin:
  ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1
  ARM: dts: berlin: correct BG2Q's sdhci2 2nd clock
2015-12-11 00:24:38 +01:00
Arnd Bergmann 9421a14597 Second fixes for 4.4:
- fix of a hardware setup that prevents the sd/mmc interface to show up on
   sama5d2.
 - proper selection of pinctrl drivers. PIO4 is necessary for the sama5d2 to
   boot.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJWZLDzAAoJEKbNnwlvZCyzZnsP/0LnaHnd/AQgukmJDHG5L+oY
 trhwUctcLxV5T6SMTqkdFJ64im7j9Q9VNs5hFOtm4FiNBUjWNuGGhBIqSUIYIZTp
 dRNXs2yIJXXwUl37mQzQPqrt8fKRC2QMgFn2fMLBaPmxOTDgTvZ9aks/DWOCO1Kk
 2xZ+7OeyTFZDMEHM7Xb4RpAgAQxaipWfH2+pYoLaPvhPqUDWGrDWdRPNtd/hwvxA
 UM4+hGRhcEGdrzDkbC3sno8dvSUH9vwBaHKgLiJ3ZD3atE23w/Xs4HCNtbqtKj/5
 Y6LP6067Zr5drb9xt9zV5ghQnoh+u14qcOo4r9F9wwRQs1LYrHiu6T9sntYOhXWN
 jLi4fuLF8DVTyDPn0mmd3dVyTe+mDrzk0guJ3B1RkEEgV1/uY7obSFBLyprcPK18
 CDq2wEeOuiEaZJrIq6tqHnamKRiq43RcRijx7zs3UlcoUZ7TXCpou/FvPXdoK0OX
 8/FOaZueYmK1Hdsit29ibBkrmQ07b+Hajxk10/fWU049hQm5O05rK6XLTQ6doZap
 AUbARY7jGcd3uB/TWrYmE0bdAoGhKGOtRVSnWG6qoWdBNzS2q5dJD1m6rPtrNwcj
 T2wHei6jRFzc4FOKn9vjOSvbY19LmvkqeWYwlTytcUknqG5hy7Eoo4KGTjo6jGME
 jhGnEukaGy7gXoZQAlSv
 =Nvkl
 -----END PGP SIGNATURE-----

Merge tag 'at91-4.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into fixes

Merge "Second fixes for 4.4" from Alexandre Belloni:

- fix of a hardware setup that prevents the sd/mmc interface to show up on
  sama5d2.
- proper selection of pinctrl drivers. PIO4 is necessary for the sama5d2 to
  boot.

* tag 'at91-4.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  ARM: at91: fix pinctrl driver selection
  ARM: at91/dt: add always-on to 1.8V regulator
2015-12-11 00:22:11 +01:00
Arnd Bergmann 789d73b384 Fixes for Exynos:
1. Fix potential NULL pointer dereference in Exynos PMU driver.
 2. Remove incorrect __init annotation from s3c24xx cpufreq driver
    structures.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWV66yAAoJEME3ZuaGi4PXxdkP/jHTVeUGKt0NmDuAQ8oHLXsL
 AGAFF0KdkrWvAcjiLBfyNw4DTQwZu6pyF4E+PFffhXRjJFp3ku7pKcGcf2+vvrdt
 mc5Sg9dvICoqqQiJmnyMymG+dKXWGEK5NF8HPZSATAl+7DrTsACRWU4UPMLlOjmQ
 /U2KABSJFcwuAPBd0wKL6B5Wbx7ijWaUI1xnNxqpuZW6YsXEqz4GYxJ41UWqNrN/
 htoOgYCDTh9aATWpJeDRUALEYiIPS+pAjdCYaiZzrmJerCDiNO8RdMKqVX2LG+sk
 tqBem2cy9TlCuJFdZX50Y700nK6G+iniTVaGoJO93w4XLRwTKAJROr/+7uNGqWqq
 Q/Ofkh6SEJpOiNunREqf7zCLOwUs6d2bQSTp6FilAsSxQCeRVSvXkTfTv388UWOk
 vD3TtfCPPokPwyWubtPeRYn6lDTfXUZr8cVkh1+/lcTCXEMvlK9AyDp3BsKDQHyQ
 zG5yZuZ6VQ2bmhE4B43yCMdqxFTLe+vf+GetJl4aDSAQNMuBdXZ84tyLwQqAMpvK
 PXTjL9RqgA78YurlS5LamqChQEI4abVnWvwBk5rTxwaqL5B5BC9i7U5Q8DuOFPv2
 W52GcBCdYriFmPhpXSVLDn47s1eyE360mBknUh2V0p6+GQzaAjzyjiTxU9/suoHQ
 IPGSkgxOfIiBMiHYPG0O
 =jNcR
 -----END PGP SIGNATURE-----

Merge tag 'samsung-fixes-4.4' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into fixes

Merge "Fixes for Exynos" from Krzysztof Kozlowski:

1. Fix potential NULL pointer dereference in Exynos PMU driver.
2. Remove incorrect __init annotation from s3c24xx cpufreq driver
   structures.

* tag 'samsung-fixes-4.4' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  cpufreq: s3c24xx: Do not mark s3c2410_plls_add as __init
  ARM: EXYNOS: Fix potential NULL pointer access in exynos_sys_powerdown_conf
2015-12-11 00:19:37 +01:00
Linus Torvalds 0bd0f1e6d4 Series of 4.4-rc fixes
Most are minor to important fixes.  There is one performance enhancement
 that I took on the grounds that failing to check if other processes can
 run before running what's intended to be a background, idle-time task
 is a bug, even though the primary effect of the fix is to improve
 performance (and it was a very simple patch).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWZ1KiAAoJELgmozMOVy/d9wYQALgNhjeRqhwyXlbF66NjIxd/
 IpEfv13JzjehemVnOnH52K0cv6aTPQFIEGvOyf1czeAHK/iZdwbtPlVIr57fQuoP
 67F9ayE72NoB74qQvWJmSny7LUrvVHxU8MfhTumkXShF4MaouseRC03LV5QqDyoL
 9DAZxiT24WfX0gpG7IqN6HTG1dYwt/cDPvc9rjbdcnpEXNy3Upnl9SwV8S8LIqV+
 RYgHdL03pCew5FxrgoLiRFM+duGqnF2AynVM4wjy0Abe47VRcDz3aIE44v+L+tLJ
 WG6011faEhRCdiSLq/AUlGbocRgqnnBbkabpj+7twwBx6+7BF5S7/FWv8sq74ADM
 vfRB7EMnbtS5GOpDMmjenVUOg5muDTzbuq/0JFYg+zsySWcYqFxELR+Euramf3M8
 Z/gvzjlVbzkgWY35itxnWkKqtVxOyWz2qHOdkoVC/qXJzthbfjpeuw9E3tUAsyui
 ADLqZGMFux5/gnk05og0rYIkZCCeXTvwlbMOjVX5+aQQpE0I6Ryw3gDm+Jn/3reA
 0H+KR7zWMP24XDy2LCvF+VvjwuDQdgCMGQTREFLxniJvlKYccBe5Yu2rzv85WYmX
 hMAH3llz8fTt4oNmvsi+udYD2yNjhQZSuG2A5KuVVXDMItI7hsNx1p0aSLcbAZUW
 +cYgv8uMYap5nSTq1oqq
 =9HqU
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull rdma fixes from Doug Ledford:
 "Most are minor to important fixes.

  There is one performance enhancement that I took on the grounds that
  failing to check if other processes can run before running what's
  intended to be a background, idle-time task is a bug, even though the
  primary effect of the fix is to improve performance (and it was a very
  simple patch)"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
  IB/mlx5: Postpone remove_keys under knowledge of coming preemption
  IB/mlx4: Use vmalloc for WR buffers when needed
  IB/mlx4: Use correct order of variables in log message
  iser-target: Remove explicit mlx4 work-around
  mlx4: Expose correct max_sge_rd limit
  IB/mad: Require CM send method for everything except ClassPortInfo
  IB/cma: Add a missing rcu_read_unlock()
  IB core: Fix ib_sg_to_pages()
  IB/srp: Fix srp_map_sg_fr()
  IB/srp: Fix indirect data buffer rkey endianness
  IB/srp: Initialize dma_length in srp_map_idb
  IB/srp: Fix possible send queue overflow
  IB/srp: Fix a memory leak
  IB/sa: Put netlink request into the request list before sending
  IB/iser: use sector_div instead of do_div
  IB/core: use RCU for uverbs id lookup
  IB/qib: Minor fixes to qib per SFF 8636
  IB/core: Fix user mode post wr corruption
  IB/qib: Fix qib_mr structure
2015-12-10 14:42:22 -08:00
Qipeng Zha 99a735b3c2 pinctrl: intel: fix offset calculation issue of register PAD_OWN
The calculation equation of PAD_OWN register offset is not
correct for Broxton, verified this fix will get right
offset for Broxton.

Signed-off-by: Qi Zheng <qi.zheng@intel.com>
Signed-off-by: Qipeng Zha <qipeng.zha@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-10 23:01:42 +01:00
Qipeng Zha 618a919b4c pinctrl: intel: fix bug of register offset calculation
The group size for registers PADCFGLOCK, HOSTSW_OWN, GPI_IS,
GPI_IE, are not 24 for Broxton, Add a parameter to allow
different platform to set correct value.

Signed-off-by: Qi Zheng <qi.zheng@intel.com>
Signed-off-by: Qipeng Zha <qipeng.zha@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-10 23:01:41 +01:00
Jisheng Zhang b5010d2081 ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1
We removed CLK_IGNORE_UNUSED from CLKID_SDIO's flag, so the sdhci0 and
sdhci1 don't work. We fix this by adding the optional 2nd clock for
BG2Q's sdhci0 and sdhci1. This patch brings another benefit: the 2nd
clock can be disabled during runtime pm, so saves power a bit.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2015-12-10 21:00:24 +01:00
Jisheng Zhang 5d756147f7 ARM: dts: berlin: correct BG2Q's sdhci2 2nd clock
The optional 2nd clock is CLKID_SDIO. We removed CLK_IGNORE_UNUSED
from CLKID_SDIO's flag, so the sdhci2 doesn't work. This patch fixes
this issue by correcting the sdhci2's 2nd clock.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2015-12-10 21:00:16 +01:00
Linus Torvalds a80c47daa8 sound fixes for 4.4-rc5
Again less intensive changes in this rc: you can find only a few
 HD-audio fixes (noise fixes for Intel Broxton chip and a few Thinkpad
 models, quirks for Alienware 17 and Packard Bell DOTS) in addition
 to a long-standing rme96 bug fix.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJWaVzzAAoJEGwxgFQ9KSmkLEkP/3/Ti7++NAjUMdc/rp4EcOSu
 5k2cun58FPRaLgYZcS6cBRyhysSQHwFvFmk59di7xv7z8JDFTSMT1IREI+Obz8l9
 5N6poiU34hLLL5UChtAjvBjliRKH4thV5YXHUIBwJg76q/vg5DaGUZ0nh6R0oj+7
 K4EcGeS49oRiaYlDpoLQw+BfCVcVN9eCR6fFdWL8biFHPptRdnEV+pdzuUVnxsrV
 v2noR6ilH+obUiFuMzQNYAW9fi4t/bTfs5oaJE98o02r0waRBt9JsJ35vJMECwGy
 KOCryvZOAezt9DwVbI6JdkAswUkNl/9F4RYcUXY49kudHOLxkuGUUOHiOKdq/1oY
 Gf0aqAJYsxr7OEPNejL5l82mWTbUjihxpAuo5z0dIcgYu7Q+uLXNQQNiwr6d4TFf
 1V1tV2SRmFvhc95rQdHiwY2nMOaoK1rwTnGpaxwvZb+17JBAIT3NjPvaEZndXQMx
 CEfgRJndSyrryZfWZeyEs7D7S1h2BBqtfwPFuTEq+0qZWT5B/5JkqQoe0cLtBaUA
 JDJAdy5oNX1Q6jdOsl6grm/nRa0rQ1nRqUC6t4RKUlTRsIhP1VNkaW5ZxXm75PMv
 kGaDuMvvkwwm5XuqIx3u2EIK/fnFbLEG7s1kh7DtPm2Hx4xZe+EHRObHOvuCWiAz
 /Wh+peNCyv0Tvef6lxuX
 =J1LA
 -----END PGP SIGNATURE-----

Merge tag 'sound-4.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Again less intensive changes in this rc: you can find only a few
  HD-audio fixes (noise fixes for Intel Broxton chip and a few Thinkpad
  models, quirks for Alienware 17 and Packard Bell DOTS) in addition to
  a long-standing rme96 bug fix"

* tag 'sound-4.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/ca0132 - quirk for Alienware 17 2015
  ALSA: hda - Fix noise problems on Thinkpad T440s
  ALSA: hda - Fixing speaker noise on the two latest thinkpad models
  ALSA: hda - Add inverted dmic for Packard Bell DOTS
  ALSA: hda - Fix playback noise with 24/32 bit sample size on BXT
  ALSA: rme96: Fix unexpected volume reset after rate changes
2015-12-10 10:44:32 -08:00
Linus Walleij e2bf3e6eca clocksource: Mmio: remove artificial 32bit limitation
The EP93xx is registering a clocksource of 40 bits with
clocksource_mmio_init() but this is not working because of this
artificial limitation. It works fine to lift the uppe limit to
64 bits, and since cycle_t is u64, it should intuitively have been
like that from the beginning.

Fixes: 000bc17817 "ARM: ep93xx: switch to GENERIC_CLOCKEVENTS"
Reported-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: http://lkml.kernel.org/r/1449768101-6879-1-git-send-email-linus.walleij@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-12-10 19:37:18 +01:00
Marc Zyngier 8e31ed9c18 irqchip/gic-v3: Add missing include for barrier.h
Both the 32bit and 64bit versions of the GICv3 header file are using
barriers, but neglect to include barrier.h, leading to an interesting
splat in some circumstances.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1449483072-17694-3-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-12-10 19:13:26 +01:00
Marc Zyngier 059393c5bd irqchip/gic-v3: Add missing struct device_node declaration
When the GICv3 header file is used in a C file that doesn't include
any of the OF stuff, we end up with a bunch of ugly warnings.

Let's keep GCC quiet by adding a forward declaration.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1449483072-17694-2-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-12-10 19:13:26 +01:00
Ken Xue 1c69d3b6eb Revert "SCSI: Fix NULL pointer dereference in runtime PM"
This reverts commit 49718f0fb8 ("SCSI: Fix NULL pointer dereference in
runtime PM")

The old commit may lead to a issue that blk_{pre|post}_runtime_suspend and
blk_{pre|post}_runtime_resume may not be called in pairs.

Take sr device as example, when sr device goes to runtime suspend,
blk_{pre|post}_runtime_suspend will be called since sr device defined
pm->runtime_suspend. But blk_{pre|post}_runtime_resume will not be called
since sr device doesn't have pm->runtime_resume. so, sr device can not
resume correctly anymore.

More discussion can be found from below link.
http://marc.info/?l=linux-scsi&m=144163730531875&w=2

Signed-off-by: Ken Xue <Ken.Xue@amd.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Xiangliang Yu <Xiangliang.Yu@amd.com>
Cc: James E.J. Bottomley <JBottomley@odin.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Michael Terry <Michael.terry@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-10 12:24:44 -05:00
Pablo Neira Ayuso d3340b79ec netfilter: nf_dup: add missing dependencies with NF_CONNTRACK
CONFIG_NF_CONNTRACK=m
CONFIG_NF_DUP_IPV4=y

results in:

   net/built-in.o: In function `nf_dup_ipv4':
>> (.text+0xd434f): undefined reference to `nf_conntrack_untracked'

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-12-10 18:17:06 +01:00
Pablo Neira Ayuso bd678e09dc netfilter: nfnetlink: fix splat due to incorrect socket memory accounting in skbuff clones
If we attach the sk to the skb from nfnetlink_rcv_batch(), then
netlink_skb_destructor() will underflow the socket receive memory
counter and we get warning splat when releasing the socket.

$ cat /proc/net/netlink
sk       Eth Pid    Groups   Rmem     Wmem     Dump     Locks     Drops     Inode
ffff8800ca903000 12  0      00000000 -54144   0        0 2        0        17942
                                     ^^^^^^

Rmem above shows an underflow.

And here below the warning splat:

[ 1363.815976] WARNING: CPU: 2 PID: 1356 at net/netlink/af_netlink.c:958 netlink_sock_destruct+0x80/0xb9()
[...]
[ 1363.816152] CPU: 2 PID: 1356 Comm: kworker/u16:1 Tainted: G        W       4.4.0-rc1+ #153
[ 1363.816155] Hardware name: LENOVO 23259H1/23259H1, BIOS G2ET32WW (1.12 ) 05/30/2012
[ 1363.816160] Workqueue: netns cleanup_net
[ 1363.816163]  0000000000000000 ffff880119203dd0 ffffffff81240204 0000000000000000
[ 1363.816169]  ffff880119203e08 ffffffff8104db4b ffffffff813d49a1 ffff8800ca771000
[ 1363.816174]  ffffffff81a42b00 0000000000000000 ffff8800c0afe1e0 ffff880119203e18
[ 1363.816179] Call Trace:
[ 1363.816181]  <IRQ>  [<ffffffff81240204>] dump_stack+0x4e/0x79
[ 1363.816193]  [<ffffffff8104db4b>] warn_slowpath_common+0x9a/0xb3
[ 1363.816197]  [<ffffffff813d49a1>] ? netlink_sock_destruct+0x80/0xb9

skb->sk was only needed to lookup for the netns, however we don't need
this anymore since 633c9a840d ("netfilter: nfnetlink: avoid recurrent
netns lookups in call_batch") so this patch removes this manual socket
assignment to resolve this problem.

Reported-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Tested-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
2015-12-10 18:16:29 +01:00
Shawn Guo 46435d4c35 pinctrl: freescale: add ZERO_OFFSET_VALID flag for vf610 pinctrl
To support i.MX7D Low Power State Retention IOMUXC, commit e7b37a522a
("pinctrl: freescale: imx: allow mux_reg offset zero") changes the way
of zero mux_reg offset support with a new flag ZERO_OFFSET_VALID.  But,
unfortunately, it forgot to add this flag for vf610 pinctrl which has
zero mux_reg offset be valid as well, and hence breaks the vf610
support.

Fix the regression by adding flag ZERO_OFFSET_VALID for vf610 pinctrl
driver.

Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Fixes: e7b37a522a ("pinctrl: freescale: imx: allow mux_reg offset zero")
Reported-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-10 18:01:50 +01:00
Nishanth Menon 00917b5c55 hwmon: (tmp102) Force wait for conversion time for the first valid data
TMP102 works based on conversions done periodically. However, as per
the TMP102 data sheet[1] the first conversion is triggered immediately
after we program the configuration register. The temperature data
registers do not reflect proper data until the first conversion is
complete (in our case HZ/4).

The driver currently sets the last_update to be jiffies - HZ, just
after the configuration is complete. When TMP102 driver registers
with the thermal framework, it immediately tries to read the sensor
temperature data. This takes place even before the conversion on the
TMP102 is complete and results in an invalid temperature read.

Depending on the value read, this may cause thermal framework to
assume that a critical temperature event has occurred and attempts to
shutdown the system.

Instead of causing an invalid mid-conversion value to be read
erroneously, we mark the last_update to be in-line with the current
jiffies. This allows the tmp102_update_device function to skip update
until the required conversion time is complete. Further, we ensure to
return -EAGAIN result instead of returning spurious temperature (such
as 0C) values to the caller to prevent any wrong decisions made with
such values. NOTE: this allows the read functions not to be blocking
and allows the callers to make the decision if they would like to
block or try again later. At least the current user(thermal) seems to
handle this by retrying later.

A simpler alternative approach could be to sleep in the probe for the
duration required, but that will result in latency that is undesirable
and delay boot sequence un-necessarily.

[1] http://www.ti.com/lit/ds/symlink/tmp102.pdf

Cc: Eduardo Valentin <edubezval@gmail.com>
Reported-by: Aparna Balasubramanian <aparnab@ti.com>
Reported-by: Elvita Lobo <elvita@ti.com>
Reported-by: Yan Liu <yan-liu@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-12-10 08:14:22 -08:00
James Bottomley 3417c1b5cb ses: Fix problems with simple enclosures
Simple enclosure implementations (mostly USB) are allowed to return only
page 8 to every diagnostic query.  That really confuses our
implementation because we assume the return is the page we asked for and
end up doing incorrect offsets based on bogus information leading to
accesses outside of allocated ranges.  Fix that by checking the page
code of the return and giving an error if it isn't the one we asked for.
This should fix reported bugs with USB storage by simply refusing to
attach to enclosures that behave like this.  It's also good defensive
practise now that we're starting to see more USB enclosures.

Reported-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Cc: stable@vger.kernel.org
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2015-12-10 08:14:03 -08:00
Joe Thornber ed8b45a367 dm btree: fix bufio buffer leaks in dm_btree_del() error path
If dm_btree_del()'s call to push_frame() fails, e.g. due to
btree_node_validator finding invalid metadata, the dm_btree_del() error
path must unlock all frames (which have active dm-bufio buffers) that
were pushed onto the del_stack.

Otherwise, dm_bufio_client_destroy() will BUG_ON() because dm-bufio
buffers have leaked, e.g.:
  device-mapper: bufio: leaked buffer 3, hold count 1, list 0

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2015-12-10 10:30:18 -05:00
Pablo Neira Ayuso 633c9a840d netfilter: nfnetlink: avoid recurrent netns lookups in call_batch
Pass the net pointer to the call_batch callback functions so we can skip
recurrent lookups.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Tested-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
2015-12-10 13:49:24 +01:00
Holger Hoffstätte 94356889c4 btrfs: fix misleading warning when space cache failed to load
When an inconsistent space cache is detected during loading we log a
warning that users frequently mistake as instruction to invalidate the
cache manually, even though this is not required. Fix the message to
indicate that the cache will be rebuilt automatically.

Signed-off-by: Holger Hoffstätte <holger.hoffstaette@googlemail.com>
Acked-by: Filipe Manana <fdmanana@suse.com>
2015-12-10 11:38:08 +00:00
Maarten Lankhorst 634b3a4a47 drm/i915: Do a better job at disabling primary plane in the noatomic case.
When disable_noatomic is called plane_mask is not correct yet, and
plane_state->visible = true is left as true after disabling the primary
plane.

Other planes are already disabled as part of crtc sanitization, only the
primary is left active. But the plane_mask is not updated here. It gets
updated during fb takeover in modeset_gem_init, or set to the new value
on resume.

This means that to disable the primary plane 1 << drm_plane_index(primary)
needs to be used.

Afterwards because the crtc is no longer active it's forbidden to keep
plane_state->visible set, or a WARN_ON in
intel_plane_atomic_calc_changes triggers. There are other code points
that rely on accurate plane_state->visible too, so make sure the bool is
cleared.

The other planes are already disabled in intel_sanitize_crtc, so they
don't have to be handled here.

Cc: stable@vger.kernel.org #v4.3, v4.2?
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92655
Tested-by: Tomas Mezzadra <tmezzadra@gmail.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/5652DB88.9070208@linux.intel.com
(cherry picked from commit 54a4196188)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-12-10 13:33:42 +02:00
Filipe Manana 8a7d656f3d Btrfs: fix transaction handle leak in balance
If we fail to allocate a new data chunk, we were jumping to the error path
without release the transaction handle we got before. Fix this by always
releasing it before doing the jump.

Fixes: 2c9fe83552 ("btrfs: Fix lost-data-profile caused by balance bg")
Signed-off-by: Filipe Manana <fdmanana@suse.com>
2015-12-10 11:23:24 +00:00
Filipe Manana 348a0013d5 Btrfs: fix unprotected list move from unused_bgs to deleted_bgs list
As of my previous change titled "Btrfs: fix scrub preventing unused block
groups from being deleted", the following warning at
extent-tree.c:btrfs_delete_unused_bgs() can be hit when we mount the a
filesysten with "-o discard":

 10263  void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info)
 10264  {
 (...)
 10405                  if (trimming) {
 10406                          WARN_ON(!list_empty(&block_group->bg_list));
 10407                          spin_lock(&trans->transaction->deleted_bgs_lock);
 10408                          list_move(&block_group->bg_list,
 10409                                    &trans->transaction->deleted_bgs);
 10410                          spin_unlock(&trans->transaction->deleted_bgs_lock);
 10411                          btrfs_get_block_group(block_group);
 10412                  }
 (...)

This happens because scrub can now add back the block group to the list of
unused block groups (fs_info->unused_bgs). This is dangerous because we
are moving the block group from the unused block groups list to the list
of deleted block groups without holding the lock that protects the source
list (fs_info->unused_bgs_lock).

The following diagram illustrates how this happens:

            CPU 1                                     CPU 2

 cleaner_kthread()
   btrfs_delete_unused_bgs()

     sees bg X in list
      fs_info->unused_bgs

     deletes bg X from list
      fs_info->unused_bgs

                                            scrub_enumerate_chunks()

                                              searches device tree using
                                              its commit root

                                              finds device extent for
                                              block group X

                                              gets block group X from the tree
                                              fs_info->block_group_cache_tree
                                              (via btrfs_lookup_block_group())

                                              sets bg X to RO (again)

                                              scrub_chunk(bg X)

                                              sets bg X back to RW mode

                                              adds bg X to the list
                                              fs_info->unused_bgs again,
                                              since it's still unused and
                                              currently not in that list

     sets bg X to RO mode

     btrfs_remove_chunk(bg X)

     --> discard is enabled and bg X
         is in the fs_info->unused_bgs
         list again so the warning is
         triggered
     --> we move it from that list into
         the transaction's delete_bgs
         list, but we can have another
         task currently manipulating
         the first list (fs_info->unused_bgs)

Fix this by using the same lock (fs_info->unused_bgs_lock) to protect both
the list of unused block groups and the list of deleted block groups. This
makes it safe and there's not much worry for more lock contention, as this
lock is seldom used and only the cleaner kthread adds elements to the list
of deleted block groups. The warning goes away too, as this was previously
an impossible case (and would have been better a BUG_ON/ASSERT) but it's
not impossible anymore.
Reproduced with fstest btrfs/073 (using MOUNT_OPTIONS="-o discard").

Signed-off-by: Filipe Manana <fdmanana@suse.com>
2015-12-10 11:22:38 +00:00
Johannes Berg b7bb110008 rfkill: copy the name into the rfkill struct
Some users of rfkill, like NFC and cfg80211, use a dynamic name when
allocating rfkill, in those cases dev_name(). Therefore, the pointer
passed to rfkill_alloc() might not be valid forever, I specifically
found the case that the rfkill name was quite obviously an invalid
pointer (or at least garbage) when the wiphy had been renamed.

Fix this by making a copy of the rfkill name in rfkill_alloc().

Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-10 10:37:51 +01:00
Cyrille Pitchen aa876cd4b4 dmaengine: at_xdmac: fix at_xdmac_prep_dma_memcpy()
This patch fixes at_xdmac_prep_dma_memcpy(). Indeed the data width field
of the Channel Configuration register was not updated properly in the
loop: the bits of the dwidth field were not cleared before adding their
new value.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Fixes: e1f7c9eee7 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Cc: stable@vger.kernel.org #4.1 and later
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-12-10 09:48:01 +05:30
Vinod Koul bcb4b61911 Merge branch 'fix/edma' into fixes 2015-12-10 08:43:43 +05:30
Peter Ujfalusi ae0add740c dmaengine: edma: DT: Change reserved slot array from 16bit to 32bit type
This change makes the DT file to be easier to read since the reserved slots
array does not need the '/bits/ 16' to be specified, which might confuse
some people.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-12-10 08:32:42 +05:30
Peter Ujfalusi ecb7deceff dmaengine: edma: DT: Change memcpy channel array from 16bit to 32bit type
This change makes the DT file to be easier to read since the memcpy
channels array does not need the '/bits/ 16' to be specified, which might
confuse some people.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-12-10 08:31:10 +05:30
Linus Torvalds 6764e5ebd5 VFIO fixes for v4.4-rc5
- Various fixes for removing redundancy, const'ifying structs,
    avoiding stack usage, fixing WARN usage (Krzysztof Kozlowski,
    Julia Lawall, Kees Cook, Dan Carpenter)
  - Revert No-IOMMU mode as the intended user has not emerged
    (Alex Williamson)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWaLTPAAoJECObm247sIsi+bcQAJ8YacU2jLM92/m9Ciw5P76A
 fGFrP6Pb9VmCJ2nnyglOI7Puw3EXl/BN6tHnvRUbqIOHR4HmsBxvNmknj984glfH
 FgoE64R1QLmk2AcQOCkgr/eCxWilQ8udh4ztTVQjbynA2jiOxmD97CX87DkFqzeW
 BNGs2TOpnStvLWBJgTITLpmUPApTIyBUAjsMtAKxUc0r+E/9KgnOyXXuq9tNCCrQ
 tDyJng11a9xrYmRDlarpySuJ9A/fUyAcQ1p5+JdTugT8r1rCcbZxk+ofajG5gqI1
 gtlPmmBYi255OOrPjHMVcCbKHgEet6cUNsgC4L+tHBUv0/ZzFZeXCliWM+MLx5iS
 nJ6+fOMxd9lWDCAjgGUHrTObIYxhNq7XykjeT3C9A/4N5MuK7mVqnpR+CTun1y73
 JKByNMEB5KDeVQKdPqTlX9nwG7ki7n+0YR7hEYyq+eAk9s4QUEjGoOb5bavTxCnM
 gn4KFZNDXTn5EIhZZVNG916nYm+gvDasDSzOuuNrhDpGuWWgDH9ZIE0bHcYWaXXE
 lECw5WPmH8zQSuVJLq3wkAG596kNHkBGw4Pg6zRXA/llUFqqGVb6BYY+Tz9Mu+NP
 OfqrKVnK2EExblsUYBKJkBYFIikqAC+D0UVpBsGiCneNFaqDPvCANcfQaObTdzBz
 Y3nt0+FpY+bCqEDge0u+
 =im4y
 -----END PGP SIGNATURE-----

Merge tag 'vfio-v4.4-rc5' of git://github.com/awilliam/linux-vfio

Pull VFIO fixes from Alex Williamson:

 - Various fixes for removing redundancy, const'ifying structs, avoiding
   stack usage, fixing WARN usage (Krzysztof Kozlowski, Julia Lawall,
   Kees Cook, Dan Carpenter)

 - Revert No-IOMMU mode as the intended user has not emerged (Alex
   Williamson)

* tag 'vfio-v4.4-rc5' of git://github.com/awilliam/linux-vfio:
  Revert: "vfio: Include No-IOMMU mode"
  vfio: fix a warning message
  vfio: platform: remove needless stack usage
  vfio-pci: constify pci_error_handlers structures
  vfio: Drop owner assignment from platform_driver
2015-12-09 16:52:12 -08:00
Grygorii Strashko 14054fb1da ARM: dts: am4372: fix clock source for arm twd and global timers
ARM TWD and Global timer are clocked by PERIPHCLK which is MPU_CLK/2.
But now they are clocked by dpll_mpu_m2_ck == MPU_CLK and, as result.
Timekeeping core misbehaves. For example, execution of command
"sleep 5" will take 10 sec instead of 5.

Hence, fix it by adding mpu_periphclk ("fixed-factor-clock") and use
it for clocking ARM TWD and Global timer (same way as on OMAP4).

Cc: Tony Lindgren <tony@atomide.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Fixes:commit 8cbd4c2f6a ("arm: boot: dts: am4372: add ARM timers and SCU nodes")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-09 16:46:25 -08:00
Linus Torvalds eef121f407 DeviceTree fixes for 4.4-rc4:
- Fix incorrect warning about overlapping memory regions
 
 - Export of_irq_find_parent again which was made static in 4.4, but has
   users pending for 4.5.
 
 - Fix of_msi_map_rid declaration location
 
 - Fix re-entrancy for of_fdt_unflatten_tree
 
 - Clean-up of phys_addr_t printks
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWaEnyAAoJEPr7XbWNvGHDH90P/1JSGowb+SbRcnnsrdC3mm4A
 EhuohOWeF9LYOMLfPm01dDL/165mso61HWs1T7qdZInAWEcwTHGrBz6GVUjzqA5D
 jYL1ONAEC8VaScRQ51JYg9s9be/pDyGqmdDHjTIqB4yFf+JVGkJFWwNi6RLWjAQz
 J0PmNN32GMcRK9MPC02XjcYeEyVWuTFWkX4h1WpG+YnMfZ3M2b4ITOKDZDPx7iKb
 benPM3i2jPeZnkHsMT8sCJ5QpwoTtWyuh3G3l8zfoK1dH4S9e4Egwq0o2+DWXBXU
 bTTn+nrGtiw73h6naWA/gbllo+fuzDj+PqyH8bfNHPW33PBgUIJRNs8ZoBwyFcEg
 2qxIQMK65JXxwXTWOPKwIPajh/2qSj5OgrtRSQp05IAjd4xve4CQHEWMh8R2CO2x
 hcmXwJuALsbU021bWGbsJ23aF7TUrxUrk6cUKisarbPWBVGUOAkblYzC5B14w5+F
 XyoyM2d5R8xPKlN69o/5Sd0/1+gpazYscXUM031udFvq1P7RxKxst/Z9oScYl4fq
 AocQlRERHFu1nfHGoV0Vw4yRuJnZG2xpmN8uGdOfMLErJkgmVeKSQV0RUEBtnRMT
 l4jcAlumGqpuK7Nvqb30+I8FtB0ksNkg49dIpuyyj+fL5dRVHs6yY9hiTqqmk7yH
 wfFq3DubsUxATlq7pqYD
 =Y8J4
 -----END PGP SIGNATURE-----

Merge tag 'devicetree-fixes-for-4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DT fixes from Rob Herring:
 "I think this should be all for 4.4:

   - Fix incorrect warning about overlapping memory regions

   - Export of_irq_find_parent again which was made static in 4.4, but
     has users pending for 4.5.

   - Fix of_msi_map_rid declaration location

   - Fix re-entrancy for of_fdt_unflatten_tree

   - Clean-up of phys_addr_t printks"

* tag 'devicetree-fixes-for-4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of/irq: move of_msi_map_rid declaration to the correct ifdef section
  of/irq: Export of_irq_find_parent again
  of/fdt: Add mutex protection for calls to __unflatten_device_tree()
  of/address: fix typo in comment block of of_translate_one()
  of: do not use 0x in front of %pa
  of: Fix comparison of reserved memory regions
2015-12-09 16:44:07 -08:00
Ulf Hansson ffe12855a5 PM / Domains: Allow runtime PM callbacks to be re-used during system PM
A runtime PM centric subsystem/driver may typically use the runtime PM
helpers, pm_runtime_force_suspend|resume() in the system PM path. This
means the genpd's runtime PM callbacks might be invoked even when runtime
PM has been disabled for the device.

To properly cope with these and similar scenarios when these helper
functions are used, change genpd to skip validating and measuring the
device PM QOS latency.

This is needed because otherwise genpd may prevent the device to be put
into low power state. If this occurs during system PM, it causes the
sequence to be aborted as a device's system PM callback returns -EBUSY.

Fixes: ba2bbfbf63 (PM / Domains: Remove intermediate states from the power off sequence)
Reported-by: Cao Minh Hiep <cm-hiep@jinso.co.jp>
Reported-by: Harunaga <nx-truong@jinso.co.jp>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: 4.3+ <stable@vger.kernel.org> # 4.3+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-12-10 01:37:34 +01:00
Linus Torvalds abb7e2b3f0 One small build fix, a couple do_div() fixes, and a fix for the gpio basic
clock type are the major changes here. There's also a couple fixes for
 the TI, sunxi, and scpi clock drivers.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABCAAGBQJWaI8lAAoJENidgRMleOc9yTUP/0YexYihbhTEFnwc5sI5vPJr
 Men/1Gxmn8K+oL/sSMD5rr8K9bVR9ZVi9o8sBlDPB0jODfWNLvRzsdPTpm9/Fixb
 RnGAZz8EcpZ2inM7HtLAu19m2GcWCxkG2NRjE8/2mDduS6Avxa6ko4bYY5g56wRt
 6EET6yD3EVkTYwf+OG/7QwlccHVNnnOee04yWy7NAgHzSqMpmB3SXGQ/wZGRBkPS
 ivm3cdT91FNjboiJtuI9j8ZkX+cUpiqdK8XBA+IaWnlo8GOeEdcET6yYLha+Pvyg
 /7I0rjs7CvuPFbg/dVsosnXIiBl5RV2e+WnhgDKNHe9ldCfyrC8NaO5JBj6IsSG3
 +0AWGcGzQDl5hztSavy7iUEdNZvj7GHGJctJAD4+wpUceECURniPFNp0sKKHXY7U
 buAWQC9d+GnVwctT9109BVSyu6ON5+c5zoh+zryIfexsudfFopiksgQeA79vIBah
 hAXxo9eXBTAsybvqz/l/COo4VjZUeWXGRfmNfFEqUCZPzIUHqtjITNfsdA4I6zOz
 uOPIpYmxnbdvvw5NTrpHI2SxsOf+1N3gYbN3xJZSrVmjZW8ZGs+43aTghIu0HGWh
 8YSP7OQ9hXdCtaKVnoxWWk5JNpaN7DQ9Yh+HyHfCiXmHDFtBArMXzD7ilKmcP7V/
 YaZftt/eFkg+xhLoMD7W
 =ZGfK
 -----END PGP SIGNATURE-----

Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "One small build fix, a couple do_div() fixes, and a fix for the gpio
  basic clock type are the major changes here.  There's also a couple
  fixes for the TI, sunxi, and scpi clock drivers"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: sunxi: pll2: Fix clock running too fast
  clk: scpi: add missing of_node_put
  clk: qoriq: fix memory leak
  imx/clk-pllv2: fix wrong do_div() usage
  imx/clk-pllv1: fix wrong do_div() usage
  clk: mmp: add linux/clk.h includes
  clk: ti: drop locking code from mux/divider drivers
  clk: ti816x: Add missing dmtimer clkdev entries
  clk: ti: fapll: fix wrong do_div() usage
  clk: ti: clkt_dpll: fix wrong do_div() usage
  clk: gpio: Get parent clk names in of_gpio_clk_setup()
2015-12-09 16:36:29 -08:00
Linus Torvalds 9a0f76fde9 Fix an Oops if an interrupt occurs at startup. This can happen on
some hardware.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iEYEABECAAYFAlZof7kACgkQIXnXXONXERehTQCeI3y8x6wza8XwhNFUxrCtG5wc
 0ioAoJS0ybm+wN5tLUjXLUlhwqK9j9jT
 =lJdc
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-4.4-1' of git://git.code.sf.net/p/openipmi/linux-ipmi

Pull IPMI fix from Corey Minyard:
 "Fix an Oops if an interrupt occurs at startup.  This can happen on
  some hardware"

* tag 'for-linus-4.4-1' of git://git.code.sf.net/p/openipmi/linux-ipmi:
  ipmi: move timer init to before irq is setup
2015-12-09 11:57:10 -08:00
Jan Stancek 27f972d3e0 ipmi: move timer init to before irq is setup
We encountered a panic on boot in ipmi_si on a dell per320 due to an
uninitialized timer as follows.

static int smi_start_processing(void       *send_info,
                                ipmi_smi_t intf)
{
        /* Try to claim any interrupts. */
        if (new_smi->irq_setup)
                new_smi->irq_setup(new_smi);

 --> IRQ arrives here and irq handler tries to modify uninitialized timer

    which triggers BUG_ON(!timer->function) in __mod_timer().

 Call Trace:
   <IRQ>
   [<ffffffffa0532617>] start_new_msg+0x47/0x80 [ipmi_si]
   [<ffffffffa053269e>] start_check_enables+0x4e/0x60 [ipmi_si]
   [<ffffffffa0532bd8>] smi_event_handler+0x1e8/0x640 [ipmi_si]
   [<ffffffff810f5584>] ? __rcu_process_callbacks+0x54/0x350
   [<ffffffffa053327c>] si_irq_handler+0x3c/0x60 [ipmi_si]
   [<ffffffff810efaf0>] handle_IRQ_event+0x60/0x170
   [<ffffffff810f245e>] handle_edge_irq+0xde/0x180
   [<ffffffff8100fc59>] handle_irq+0x49/0xa0
   [<ffffffff8154643c>] do_IRQ+0x6c/0xf0
   [<ffffffff8100ba53>] ret_from_intr+0x0/0x11

        /* Set up the timer that drives the interface. */
        setup_timer(&new_smi->si_timer, smi_timeout, (long)new_smi);

The following patch fixes the problem.

To: Openipmi-developer@lists.sourceforge.net
To: Corey Minyard <minyard@acm.org>
CC: linux-kernel@vger.kernel.org

Signed-off-by: Jan Stancek <jstancek@redhat.com>
Signed-off-by: Tony Camuso <tcamuso@redhat.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: stable@vger.kernel.org # Applies cleanly to 3.10-, needs small rework before
2015-12-09 13:13:06 -06:00
Sasha Levin d7e35dfa25 bitops.h: correctly handle rol32 with 0 byte shift
ROL on a 32 bit integer with a shift of 32 or more is undefined and the
result is arch-dependent. Avoid this by handling the trivial case of
roling by 0 correctly.

The trivial solution of checking if shift is 0 breaks gcc's detection
of this code as a ROL instruction, which is unacceptable.

This bug was reported and fixed in GCC
(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57157):

	The standard rotate idiom,

	  (x << n) | (x >> (32 - n))

	is recognized by gcc (for concreteness, I discuss only the case that x
	is an uint32_t here).

	However, this is portable C only for n in the range 0 < n < 32. For n
	== 0, we get x >> 32 which gives undefined behaviour according to the
	C standard (6.5.7, Bitwise shift operators). To portably support n ==
	0, one has to write the rotate as something like

	  (x << n) | (x >> ((-n) & 31))

	And this is apparently not recognized by gcc.

Note that this is broken on older GCCs and will result in slower ROL.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-12-09 10:35:16 -08:00
Joe Thornber 50dd842ad8 dm space map metadata: fix ref counting bug when bootstrapping a new space map
When applying block operations (BOPs) do not remove them from the
uncommitted BOP ring-buffer until after they've been applied -- in case
we recurse.

Also, perform BOP_INC operation, in dm_sm_metadata_create() and
sm_metadata_extend(), in terms of the uncommitted BOP ring-buffer rather
than using direct calls to sm_ll_inc().

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2015-12-09 13:27:25 -05:00
Joe Thornber 49e99fc717 dm thin metadata: fix bug when taking a metadata snapshot
When you take a metadata snapshot the btree roots for the mapping and
details tree need to have their reference counts incremented so they
persist for the lifetime of the metadata snap.

The roots being incremented were those currently written in the
superblock, which could possibly be out of date if concurrent IO is
triggering new mappings, breaking of sharing, etc.

Fix this by performing a commit with the metadata lock held while taking
a metadata snapshot.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2015-12-09 13:18:12 -05:00
Greg Kroah-Hartman 73b39bb0a0 usb: fixes for-v4.4-rc5
Hopefully final set of fixes for v4.4 release cycle.
 
 There's a fix for a regression on dwc3 caused by recent changes to how
 transfers are started. We're not pre-starting interrupt endpoints
 anymore.
 
 A NULL pointer dereference fix for the MSM phy driver.
 
 The UVC gadget got a minor fix for permissions to its configfs
 attributes and, finally, two fixes for MUSB. A fix for PM runtime when
 MUSB returns EPROBE_DEFER and a fix to actually return an error in case
 we can't initialize a DMA engine.
 
 Signed-off-by: Felipe Balbi <balbi@ti.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWaEy5AAoJEIaOsuA1yqRELFcP/jQxtHM4Yxyqg9Os1aER7biu
 L99DVENwhTYbbiQw89irl0xobMCorQOc6l+p4cW1zpZ1binxFIdtriuBBsdlt1OS
 lev3uieHvo6QALxFS6+/31YCFXVi2MKqmU/LGAbJ6nBYLMivyllfCThFwPkkEP3w
 6nfHKPQHGXR9S3qmvWRZ4hhrfstPtzLuUYQg4PkT4TvTg+p586iOfdZukNkgSx44
 AmOInfaf990JvMJKYHFBpCCmxrfimrUkxd4soV69Fz8HORl2ZzQ9OuEMoOPwiWDp
 ALzKyd7gx2TED5mC8zJDz1JKKDhnJGiqDL9dgdZbTaLQVdbJdMS2g2zm/LU2wBIB
 c9VniI4Tr6J3xpoZkBbo5BqpQedx9S5m9fsmRL5ZRd4XGiSkB0uSqQElgy+p+nR2
 7zwhLuj5LuCPyi1yBSTSkI6/ExysNi4oSDTJWx2urU7LmMmZkD6V0GtoydSNBka3
 ACKZQHHDu9virLABWJWxilcckxrajfDQUZ6jzk3DQPQqJjN1XuLTixbclBHHtyuv
 CFq21kRMExqbLkon/KcD+NfAe6PTxONrZjmpOqPrOUN5bdnJQrpU5SAVvPIsg2an
 hwfX7JdViu1SADxUehYaXMjPSq1Guyh31722HabtiueqFN4SgS4mqlR60SVasqgB
 yNhBmVFPNsV8xiJW/wBo
 =o5zI
 -----END PGP SIGNATURE-----

Merge tag 'fixes-for-v4.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for-v4.4-rc5

Hopefully final set of fixes for v4.4 release cycle.

There's a fix for a regression on dwc3 caused by recent changes to how
transfers are started. We're not pre-starting interrupt endpoints
anymore.

A NULL pointer dereference fix for the MSM phy driver.

The UVC gadget got a minor fix for permissions to its configfs
attributes and, finally, two fixes for MUSB. A fix for PM runtime when
MUSB returns EPROBE_DEFER and a fix to actually return an error in case
we can't initialize a DMA engine.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-09 13:15:30 -05:00
Linus Torvalds 626d114f46 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
 "A couple of fixes, both -stable fodder (9p one all way back to 2.6.32,
  dio - to all branches where "Fix negative return from dio read beyond
  eof" will end up it; it's a fixup to commit marked for -stable)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fix the regression from "direct-io: Fix negative return from dio read beyond eof"
  9p: ->evict_inode() should kick out ->i_data, not ->i_mapping
2015-12-09 09:34:26 -08:00
Linus Torvalds 978d6a9041 PCI updates for v4.4:
MSI
     Only use the generic MSI layer when domain is hierarchical (Marc Zyngier)
 
   Altera host bridge driver
     Fix loop in tlp_read_packet() (Dan Carpenter)
     Fix Requester ID for config accesses (Ley Foon Tan)
     Check TLP completion status (Ley Foon Tan)
     Fix error when INTx is 4 (Ley Foon Tan)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWaE7hAAoJEFmIoMA60/r8ttwQAI7sv6+hLB+xSv8j43Xlh/wr
 M58VLpLHhsh0c5bhViIfTj3m56QPb1FqxzD1jD8NB29twPzf/j96UUUFHXZH5Amm
 kVdFVzslgpfBusGJeedL0Nei4R9TCVCaQv1BKODcLGGUZx1f29mlYLmgSVz7n3V0
 oihjN4R352yjsH0goTHxsSHjnwR7mdzKmK6lWFAFgujQK3+eJ8WE+qniP0Rh5IWS
 voqQBE7N9vXzTqrBbEJYS1KZFUn7gBkkVPo1xFtniIHXZoT23in2Cg17eUQdMymN
 6oXzzgiHkcJizuFhcxhtf7KitEbJk+6YWXxH03u5onDZQQNpJpcz17Us+vK3G4bb
 hdCMzOnZ2HAZgNP8W9yGdTB9Px9d6l1Kt3py3Nb9xJemMtl2IWVnxbRk/uu2ddF+
 83eX074U0lZqb8vAkR64EByKi8q+126BV5e+P7t3YgqJ1nA3luvk+bZsEiBFOePb
 hCNSSR2sP6mtYnVW0T3YPnZYJkrM3N28+JrZtP75szLjBNj3vmX2ani/dEJLAlkR
 UA6EoBiyJQvFyoZ2/pRb3dDYuNWoSP4yEAcZYwUFHmfs8AdF87Jl3BGH7HHW4C+8
 sendp2WisODovdUa9/QKA0VX9VAStlzTIy5g+smMgZ340yp1Bl4HHxnZhN2kSR/P
 RZVNePtY/5DX60andYLb
 =3jiK
 -----END PGP SIGNATURE-----

Merge tag 'pci-v4.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "These are more fixes I'd like to have in v4.4.  Several for the Altera
  driver added for v4.4, and one for an MSI domain problem that affects
  several arm64 platforms:

  MSI:
   - Only use the generic MSI layer when domain is hierarchical (Marc
     Zyngier)

  Altera host bridge driver:
   - Fix loop in tlp_read_packet() (Dan Carpenter)
   - Fix Requester ID for config accesses (Ley Foon Tan)
   - Check TLP completion status (Ley Foon Tan)
   - Fix error when INTx is 4 (Ley Foon Tan)"

* tag 'pci-v4.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: altera: Fix error when INTx is 4
  PCI: altera: Check TLP completion status
  PCI: altera: Fix Requester ID for config accesses
  PCI: altera: Fix loop in tlp_read_packet()
  PCI/MSI: Only use the generic MSI layer when domain is hierarchical
2015-12-09 09:26:06 -08:00
Gabriele Martino 5328e1ea87 ALSA: hda/ca0132 - quirk for Alienware 17 2015
The Alienware 17 (2015) has the same card and pin configuration of the
Alienware 15, so the same quirks must be applied.

Signed-off-by: Gabriele Martino <g.martino@gmx.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-12-09 17:06:07 +01:00
Aaro Koskinen 7d32cdef53 usb: musb: fail with error when no DMA controller set
Fail with error when no DMA controller is set.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-09 09:36:03 -06:00
Rob Herring eaddb57253 of/irq: move of_msi_map_rid declaration to the correct ifdef section
In checking fixes for of_irq_find_parent declaration location, I found
that of_msi_map_rid is also wrong. of_msi_map_rid is not implemented for
Sparc, so it should not be in the Sparc specific section of the header.
Move it to just depend on OF_IRQ.

Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-12-09 09:23:28 -06:00