Commit Graph

80164 Commits

Author SHA1 Message Date
Paul Bolle
d95c785500 mfd: Remove twelve unused Kconfig symbols
Twelve Kconfig symbols, all related to WM8350, WM8351, and WM8352, are
unused. Commit 19d57ed5a3 ("mfd: Remove
custom wm8350 cache implementation") removed all their (actual) users.
Remove these symbols too.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-09 10:14:00 +02:00
Samuel Ortiz
7aa3d7c8d5 MFD portions of the ux500 multiplatform branch.
A second tag for the ARM SoC tree will build upon
 this one. This mainly removes the header file
 dependencies from the PRCMU driver in the MFD
 subsystem, and moves the PM functions to the
 machine.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.10 (GNU/Linux)
 
 iQIcBAABAgAGBQJRYrRUAAoJEEEQszewGV1zNvQP/RxVhoNg/H4uQUjDs7z//gEe
 iLrrVZVgWJcbBeREsv8o9jaECTceejui18zqmR0Vi5ygMX4ZG9EWCCwyG5dG6TKm
 jctfqBi9J/oSzZWijm0Xt3qiq+a1PURfVXGA2lsH+pK2ZeOXZGt2qlsUiGt+8VYH
 A/TNkwle56Ntig2pMcxRAhb9nzSU5hHE3S4FKRPP1HTE95f1xlF3VvBs/irheNuE
 b58tPAAL+Gb1Oq8hcURTvKsVO0D0W+3Ww8TwIiBUrl934q+65Flt9gXM9YbDH/88
 ptG0T8xG3j1HvxUuRuhgXfqygTYFVA+unpIny1l3/BoBvluKHiulyP4+nAvMIZKJ
 hz0YMMZl1rgMxfScLdbCpqz+vaYAARYReEnbdDOb3EvcTWvTXYcrfpuGJAbCwQ6I
 khkeJULp+j3k0CMVoSAf6CLmfaNC17s4gwD909qjF6bOQAZxecB2s/2xv+R1zRPG
 WI882oX/DDqIseczBB67gomEy+Bv4d40wHefD4g2SAsI4VWnssjtMtdeH43w417B
 KoktySHpdoUBa/HkUKrKCm9TVPVMTkA9XCbHBAWpW73pZZ1MTG3C9SdgExW8h15N
 nxdsuqqqTVe5Jr9OO38nFYlzuIBdOrWSnJUd9aEk03VghEqOuaBh0xI+rh12LZ1U
 AJmjm3vidOGXxl/SDSuQ
 =3zJl
 -----END PGP SIGNATURE-----

Merge tag 'ux500-multiplatform-mfd' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson

MFD portions of the ux500 multiplatform branch.
A second tag for the ARM SoC tree will build upon
this one. This mainly removes the header file
dependencies from the PRCMU driver in the MFD
subsystem, and moves the PM functions to the
machine.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-08 16:36:52 +02:00
Mark Brown
f8a0941f1b mfd: arizona: Basic support for edge triggered IRQs
Allow the user to configure edge triggered IRQs, though we do not yet
fully handle new interrupts occurring while an interrupt is being handled.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-08 15:20:57 +02:00
Arnd Bergmann
55b175d7e6 ARM: ux500: split out prcmu initialization
This untangles the final bits of the prcmu code from the platform
code:

* The IRQ_PRCMU_* definitions move from irqs-db8500.h into prcmu.c
  because they are only of local significance.
* u8500_thsens_device goes into the prcmu, because it uses a PRCMU
  IRQ that the platform does not see.
* IRQ_DB8500_AB8500 and IRQ_PRCMU_BASE go into the platform data
  because the PRCMU does not see it.

Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[Fixed a oneliner bug]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-08 13:58:15 +02:00
Linus Walleij
1e22a8c614 ARM: ux500: move PM-related PRCMU functions to machine
We are trying to decompose and decentralize the code in
the DB8500 PRCMU out into subdrivers. The code moved in
this patch concerns a group of functions used for
decoupling and recoupling the IRQs from the GIC. During
sleep and idle the Ux500 system will transfer all IRQ
handling to the PRCMU using these functions.

Basically we are left with the two alternatives of code
placement as:

- arch/arm/mach-ux500/pm.c - this because the code is
  closely related to the GIC, and takes ownership of
  some of the registers from the PRCMU related to this
  PM functionality.

- drivers/mfd/db8500-prcmu-pm.c - because the code is
  affecting stuff in the PRCMU register range. But then
  this code needs to remap and handle GIC registers.

This patch implementation is taking the first approach.

Currently the cpuidle driver is the only piece of code
using this set of functions, but it will later also be
used by the suspend/resume code which is currently under
review.

The header file is moved to:
<linux/platform_data/arm-ux500-pm.h>
The function prototypes need to be placed in a globally
visible header since the CPUidle code is planned to move
out to drivers/cpuidle.

Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: Rickard Andersson <rickard.andersson@stericsson.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-08 13:57:53 +02:00
Linus Walleij
b047d98127 mfd: db8500-prcmu: get base address from resource
We cannot use a global variable stored in <mach/hardware.h> to
find the base address of the PRCMU. The real resource is already
there from the board, so use this to look up the base address
instead.

Currently the patch is kept minimal so as not to interfere with
other work being done on refactoring this driver, but at a later
point the defines using (prcmu_base + 0xnnn) need to be replaced
by pure offset defined for (0xnnn) and the base inlined with the
readl()/writel() and similar codepaths.

Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-08 13:57:38 +02:00
Linus Walleij
9a47a8dccf mfd: prcmu: pass a base and size with the early initcall
This patch will make an early remapping of the PRCMU, to be
used when setting up the clocks, that will call down into parts
of the PRCMU driver before it is probed.

Going forward this will be removed like this:

- The mailbox subsystem need to be merged.
  http://marc.info/?l=linux-kernel&m=136314559201983&w=2

- At this point the PRCMU clock code can be moved over to the
  ux500 clock driver in drivers/clk/ux500/* and maintained
  there in a decentralized manner.

- This early initcall and PRCMU base parameters become part of
  the ux500_clk_init() call instead.

Cc: Suman Anna <s-anna@ti.com>
Cc: Loic Pallardy <loic.pallardy@st.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-08 13:57:27 +02:00
Len Brown
ed176886b6 ia64 idle: delete stale (*idle)() function pointer
Commit 3e7fc708eb ("ia64 idle: delete pm_idle") in 3.9-rc1 didn't
finish the job, leaving an un-initialized reference to (*idle)().

[ Haven't seen a crash from this - but seems like we are just being
  lucky that "idle" is zero so it does get initialized before we jump to
  randomland  - Len ]

Reported-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-29 11:12:25 -07:00
Linus Torvalds
67e17c1100 Merge branch 'for-curr' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull arc architecture fixes from Vineet Gupta:
 "This includes fix for a serious bug in DMA mapping API, make
  allyesconfig wreckage, removal of bogus email-list placeholder in
  MAINTAINERS, a typo in ptrace helper code and last remaining changes
  for syscall ABI v3 which we are finally starting to transition-to
  internally.

  The request is late than I intended to - but I was held up with
  debugging a timer link list corruption, for which a proposed fix to
  generic timer code was sent out to lkml/tglx earlier today."

* 'for-curr' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: Fix the typo in event identifier flags used by ptrace
  arc: fix dma_address assignment during dma_map_sg()
  ARC: Remove SET_PERSONALITY (tracks cross-arch change)
  ARC: ABIv3: fork/vfork wrappers not needed in "no-legacy-syscall" ABI
  ARC: ABIv3: Print the correct ABI ver
  ARC: make allyesconfig build breakages
  ARC: MAINTAINERS update for ARC
2013-03-29 11:00:43 -07:00
Linus Torvalds
dfca53fb16 ACPI and power management fixes for 3.9-rc5
- Fix for a recent cpufreq regression related to acpi-cpufreq and
   suspend/resume from Viresh Kumar.
 
 - cpufreq stats reference counting fix from Viresh Kumar.
 
 - intel_pstate driver fixes from Dirk Brandewie and
   Konrad Rzeszutek Wilk.
 
 - New ACPI suspend blacklist entry for Sony Vaio VGN-FW21M from
   Fabio Valentini.
 
 - ACPI Platform Error Interface (APEI) fix from Chen Gong.
 
 - PCI root bridge hotplug locking fix from Yinghai Lu.
 
 /
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iQIcBAABAgAGBQJRVETOAAoJEKhOf7ml8uNs30kP/3GsKWacHsaIPdhIiHQC3f91
 HMLabrW7NE7ldrOoXzj1lTHsIc1TQHm722vyI+aF061HErfkF8Jkdi5rkIai8VMq
 IJXe4CtwuuCi0SeKQsV9ymiQanTrgsP/AlGV5x/KM/As8dvAVW/1+Ln/gXAnH0IJ
 /Onqf3eA4NBw/1Hjg7AGHGeCmOlDHvcetHF7eX4MaiYZHEwuy/a7jswH4aNOjwgx
 GZtbrnwUO6OtDKv6ie//1EbP753VrkHDtK3jzIy2lUA5YyLmr0XOTvy4uQh2n/r7
 tVTqsVoNZNA4En0YUspfsWwBruUic3ra9qVTrJqn7Fzymyr+TgyCQQzSUGrOGy2a
 wY0vwMAwm1dMwAsZWPhnui6aqvu0bbg0u7sxCZQs8WapdtjxPdD7iIhRk2YU4wOZ
 omtejW0thUIwEmHWgBPo9rFvfZmxy9hb044UfhkLI9xBmuTVrDb/HqeVPA767ZoO
 k7IVg1DG4Ye6xboCIILfluoUAsc3DvkHpCIvWVujK3pF5j/M9ptt3d8eXDFIzmWD
 J6tm9ARkQoUPRAs6751cG1N0nP++ZlErYseU/h6eXoC0rkeC/WbGyxIumii4xJhg
 Gs6GGeM8OgQ/7Fat68kA2Z7jriY+MTteLbq1Sl3PBlfdURaceOXkTIVrxXo33Itq
 jQiEKa1CbJDi6OBKog8K
 =0bjZ
 -----END PGP SIGNATURE-----

Merge tag 'pm+acpi-3.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management fixes from Rafael J Wysocki:

 - Fix for a recent cpufreq regression related to acpi-cpufreq and
   suspend/resume from Viresh Kumar.

 - cpufreq stats reference counting fix from Viresh Kumar.

 - intel_pstate driver fixes from Dirk Brandewie and Konrad Rzeszutek
   Wilk.

 - New ACPI suspend blacklist entry for Sony Vaio VGN-FW21M from Fabio
   Valentini.

 - ACPI Platform Error Interface (APEI) fix from Chen Gong.

 - PCI root bridge hotplug locking fix from Yinghai Lu.

* tag 'pm+acpi-3.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PCI / ACPI: hold acpi_scan_lock during root bus hotplug
  ACPI / APEI: fix error status check condition for CPER
  ACPI / PM: fix suspend and resume on Sony Vaio VGN-FW21M
  cpufreq: acpi-cpufreq: Don't set policy->related_cpus from .init()
  cpufreq: stats: do cpufreq_cpu_put() corresponding to cpufreq_cpu_get()
  intel-pstate: Use #defines instead of hard-coded values.
  cpufreq / intel_pstate: Fix calculation of current frequency
  cpufreq / intel_pstate: Add function to check that all MSRs are valid
2013-03-28 13:47:31 -07:00
Linus Torvalds
d3f72cfb7a Fix IS_ENABLED() usage typo (missing CONFIG_ prefix).
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.9 (GNU/Linux)
 
 iQIcBAABAgAGBQJRVDu5AAoJEGvWsS0AyF7xcOQP/3vv9Qy0ib2szZlks/B9rpSw
 XrIIrvx4KpS5NRhuqbFWxZWYi2X4UkzCSnrL+odo75Jr0Hz7e/P12MS72/E4oo0i
 Dp6lfrqCqYE5lD0o7pX0j/UeXqW9BFKJHaF/Lc6qksxI9JNgN61MD6JztBPehVgk
 1kvOr+8gQ48983ainI/H9ti5MhzePiDyCHhqLAh1cnwi27dBlGklP4TFmJ1OSoxN
 R8gaUN/H9D3aM67nWISDRrur0aKTcBqclykRtyNwnkf+MJH4UM8sQdE26unuTe+M
 ypZlry+Kt+hQaQGfM/9IXKoga8OY70oYX402PzRoFMIs73U9e5OCt/h0eOrpSQjg
 sCSTFxiwRU62fz8hgv1a4k3sJOZMvf5dgfr8Gr12sPU8EFD54rkiyWUvp9/RxG8X
 jh4SXSSiNRUoRcegkU/ZICqW/thsVZLB0+7GbJ4M6K6iUGr79Du//TBqas8kvApC
 MmnUQfRyy3tY38BaH1dhz0lv2L0H/src7+fojmFE/ael+ynNBz/uu2siRq3da/Uc
 gRHPLceTxs9Zc178QefbWnDVsseEYCQcKQjof7+bELVh3of6tlQ7RFZ6E92dMX1z
 shVpo8AoK56gIGEhQZ9Vj2LIyJJlTZPBEbWGN7pDvYYXzAEG/cL3OmJnccOfAgCs
 5jk0ybbBoSaW1lyZBuWu
 =vQtd
 -----END PGP SIGNATURE-----

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

Pull arm64 fix from Catalin Marinas:
 "Fix IS_ENABLED() usage typo (missing CONFIG_ prefix)."

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  ARM64: early_printk: Fix check for CONFIG_ARM64_64K_PAGES
2013-03-28 13:45:49 -07:00
Linus Torvalds
9064171268 Just a couple of build fixes for powerpc all{mod,yes}config.
Submitted by me since BenH is on vacation.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iQIcBAABCAAGBQJRUMdFAAoJEIn5HApB1cB6QzEP/1O0KL7QCbWiCnT92hvExo8a
 qFHdaAk/O9qasOv/+R1ObuFOVB0oSxlYFKKz6OE5XvHYzK6406Dn2xBDdBYo+SRO
 dkF6Uq7ZAzbaNXOOFa9yG6R43DDHdJgiXvQa0a8J8dJZX3OgaPSmtMMkoQIn39Fi
 xLsDMjEWfOVsOe4yebi/Btmwokqd9SRlKOyPeRRHsok9vyEqyteyNPNhCXtT9dTp
 s6noshnp3f7Yjk2al2UOoh74jUEc6oZahPK393FG93McuXXBZPRLQjh0JOpbHMeS
 12/LoyLYlqxqAEM5bUnEICkDQZCwUShpHtoMFrufr1LF+zRcqX4sN51iCahQnlNO
 XDZfAe+4UvkZGs0MbGJSgUiq/tG5D7uRoKkcgtEUmxd+gemDLVwrCnAITc9qUk3r
 D+pOJB8ZNKezG/n5e/KzQurymrj2isvAB4MOXSn0OrvShukFC+ST4civXQYUMHnr
 sJK9uas9MjPxjWqdXwHuaknV5EObdSAh4O5JEw5ZFZ8L1lYXXNaJrhnmPtHCD69Q
 Hw58ytQ8S5tcQMylxlshJGnRYTni1/8n20HAvyyw/bDWcSbo7usrsfCYQz2czPMM
 H1c+pcz/bWJrO1xxD0eX4n8EHC+JqEte1z/RNJhThZvNXvym+VdmhC3sAluM9U3H
 PYPmaOeMQifvRoSh5ZSt
 =rm4T
 -----END PGP SIGNATURE-----

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

Pull powerpc build fixes from Stephen Rothwell:
 "Just a couple of build fixes for powerpc all{mod,yes}config.

  Submitted by me since BenH is on vacation."

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sfr/next-fixes:
  powerpc: define the conditions where the ePAPR idle hcall can be supported
  powerpc: make additional room in exception vector area
2013-03-27 15:50:24 -07:00
Linus Torvalds
33b65f1e9c Bug-fixes:
- Regression fixes for C-and-P states not being parsed properly.
  - Fix possible security issue with guests triggering DoS via non-assigned MSI-Xs.
  - Fix regression (introduced in v3.7) with raising an event (v2).
  - Fix hastily introduced band-aid during c0 for the CR3 blowup.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.13 (GNU/Linux)
 
 iQEcBAABAgAGBQJRUxlVAAoJEFjIrFwIi8fJiUsH/2a3A8EVqS7OYDNgT0ZFb1VI
 rMLNiA50sRJNDsq0NbGl1Y+Lubus1czc0c7HXFQ557OakN6WqcmPPjCKp4JT6NnV
 Jz/IZ0iimdoHiPru1Qe4ah3fSgzUtht2LB48Z/a0Is4k3LsRP2W3/niVC3ypnyuJ
 52HjjuxeFAfXIkNeqsrO2a6cUXZeXzUyR4g9GNxDozi4jHpoPQ4j9okZbo218xH+
 /pRnFeMD7t7dFkgNeyeGXUiJn2AkNPHi3Hx+RH5nN9KXQ1eem9R4p7Qpez1dUEWF
 YEc/bs7MyOYezzTVHPYk77Yt8baOHJt7UbHjM6jfi1aGYYINTRr3m5mORd3rCmc=
 =61IX
 -----END PGP SIGNATURE-----

Merge tag 'stable/for-linus-3.9-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull Xen bug-fixes from Konrad Rzeszutek Wilk:
 "This is mostly just the last stragglers of the regression bugs that
  this merge window had.  There are also two bug-fixes: one that adds an
  extra layer of security, and a regression fix for a change that was
  added in v3.7 (the v1 was faulty, the v2 works).

   - Regression fixes for C-and-P states not being parsed properly.
   - Fix possible security issue with guests triggering DoS via
     non-assigned MSI-Xs.
   - Fix regression (introduced in v3.7) with raising an event (v2).
   - Fix hastily introduced band-aid during c0 for the CR3 blowup."

* tag 'stable/for-linus-3.9-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/events: avoid race with raising an event in unmask_evtchn()
  xen/mmu: Move the setting of pvops.write_cr3 to later phase in bootup.
  xen/acpi-stub: Disable it b/c the acpi_processor_add is no longer called.
  xen-pciback: notify hypervisor about devices intended to be assigned to guests
  xen/acpi-processor: Don't dereference struct acpi_processor on all CPUs.
2013-03-27 12:56:25 -07:00
Konrad Rzeszutek Wilk
d3eb2c89e7 xen/mmu: Move the setting of pvops.write_cr3 to later phase in bootup.
We move the setting of write_cr3 from the early bootup variant
(see git commit 0cc9129d75
"x86-64, xen, mmu: Provide an early version of write_cr3.")
to a more appropiate location.

This new location sets all of the other non-early variants
of pvops calls - and most importantly is before the
alternative_asm mechanism kicks in.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-03-27 12:06:03 -04:00
Stuart Yoder
f9294e989f powerpc: define the conditions where the ePAPR idle hcall can be supported
For 32-bit, CONFIG_EPAPR_PARAVIRT pulls in both epapr_paravirt.c
and epapr_hcalls.c which contains the 32-bit paravirt idle loop.

For 64-bit, the paravirt idle loop is in idle_book3e.S and that
source file is included only if CONFIG_PPC_BOOK3E_64 defined.

This patch makes that dependency for 64-bit explicit.

Fixes these build errors:

arch/powerpc/kernel/built-in.o: In function `restore_pblist_ptr':
ftrace.c:(.toc+0xdc0): undefined reference to `epapr_ev_idle_start'
ftrace.c:(.toc+0xdd0): undefined reference to `epapr_ev_idle'

Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2013-03-26 08:47:27 +11:00
Ben Hutchings
d17cfb34dc ARM64: early_printk: Fix check for CONFIG_ARM64_64K_PAGES
The 'CONFIG_' prefix is not implicit in IS_ENABLED().

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-03-25 17:59:57 +00:00
Linus Torvalds
fb9bb1829d arm-soc: bug fixes for 3.9-rc4
Four patches for arm-soc this week:
 
 - Kevin Hilman is no longer reachable under his previous email address.
   He submitted the patch earlier, but nobody felt responsible to pick
   it up.
 
 - One Tegra fix for an incorect register address in device tree.
 
 - IMX multiplatform support exposes a configuration option that
   leads to unbootable kernels on all other machines and that needs
   to depend on that platform.
 
 - A nontrivial bug fix for the setup of the mxs video output.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIVAwUAUVBQf2CrR//JCVInAQJwyRAA0qzt+jbn+ezvLpeWvrgdEVLikiAieVyt
 HmSex/pEWh2ytIkrX2maHv5Oov9QmX7v4ZEU2WtdvMv5YERsT7/y1hjHaZTLcdmH
 11ogfVwTRbrNVWOb41ofdd3rUVgZfgzCGQ0rfEua3wLRK6AetZJxkqsuGXRaqjdm
 BBbmgKAmLsLeM3/aBzeuFint1+EDY74WBMxgqkwUretefKFMxzcBaqhoR+FNDIdV
 YaYbOocq45LsOa44gxlF6pmJkZsOsB2pqAjoANm5KtZlphTEpDD1C/wXvBaVAOBh
 8mCuk2mHEyZsyLrufh/ZywaPcDaUMDwpO1zidATwaRCf6qWOr3jtWiCtQo4FeNYS
 o+kkYtELyAEvwDQuljghviq0p+z2vpnk52sYdXkYW8Pgz5TqhK+Gu2ywaeiqeT2B
 cbLGG32lVgJnmWOOXI7Z6MjekgKx5arx7z6Br+1pTT/fE44DgE+CtabEsCdcpFWG
 ftC7FdxZabDUhfynSaO43tgKhdVv2XpVobG3iW2RYJOWm2dJSxulZg9+jypdxITm
 VX3kPar+mjvwyf3svsGIc65SVaayR6pfiLzV8qBtR3trFRbIlrI7vo21d2tFtuS8
 PfAR+9VHkeOdjVKDbu1sl7YycWz03xq4cM9XPFhvrobeFXb5OFwDwLWn4DZR5ZWY
 iJSMJkaBSww=
 =F6UW
 -----END PGP SIGNATURE-----

Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC bug fixes from Arnd Bergmann:
 "Four patches for arm-soc this week:

   - Kevin Hilman is no longer reachable under his previous email
     address.  He submitted the patch earlier, but nobody felt
     responsible to pick it up.

   - One Tegra fix for an incorect register address in device tree.

   - IMX multiplatform support exposes a configuration option that leads
     to unbootable kernels on all other machines and that needs to
     depend on that platform.

   - A nontrivial bug fix for the setup of the mxs video output."

* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  MAINTAINERS: update email address for Kevin Hilman
  ARM: tegra: fix register address of slink controller
  ARM: imx: add dependency check for DEBUG_IMX_UART_PORT
  ARM: video: mxs: Fix mxsfb misconfiguring VDCTRL0
2013-03-25 09:26:10 -07:00
Konrad Rzeszutek Wilk
05e99c8cf9 intel-pstate: Use #defines instead of hard-coded values.
They are defined in coreboot (MSR_PLATFORM) and the other
one is already defined in msr-index.h.

Let's use those.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-03-25 15:13:07 +01:00
Chen Gang
087aa036eb powerpc: make additional room in exception vector area
The FWNMI region is fixed at 0x7000 and the vector are now overflowing
that with allmodconfig. Fix that by moving slb_miss_realmode code out
of that region as it doesn't need to be that close to the call sites
(it is a _GLOBAL function)

Fixes this build error:

arch/powerpc/kernel/exceptions-64s.S: Assembler messages:
arch/powerpc/kernel/exceptions-64s.S:1304: Error: attempt to move .org backwards

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2013-03-25 17:14:21 +11:00
Linus Torvalds
33b73e9b3e Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "A collection of minor fixes, more EFI variables paranoia
  (anti-bricking) plus the ability to disable the pstore either as a
  runtime default or completely, due to bricking concerns."

* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efivars: Fix check for CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE
  x86, microcode_intel_early: Mark apply_microcode_early() as cpuinit
  efivars: Handle duplicate names from get_next_variable()
  efivars: explicitly calculate length of VariableName
  efivars: Add module parameter to disable use as a pstore backend
  efivars: Allow disabling use as a pstore backend
  x86-32, microcode_intel_early: Fix crash with CONFIG_DEBUG_VIRTUAL
  x86-64: Fix the failure case in copy_user_handle_tail()
2013-03-24 10:10:34 -07:00
Linus Torvalds
22c3f2fff6 A few bugfixes for md
- recent regressions in raid5
  - recent regressions in dmraid
  - a few instances of CONFIG_MULTICORE_RAID456 linger
 
 Several tagged for -stable
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iQIVAwUAUUzCwDnsnt1WYoG5AQJKMhAAsi2XhqLC4Dx19J8MTF6+cjfynWCxF2SC
 3mMcVZm6yxSowixb1Ht72CyssWdJAi4vgaw0aLNH7b3CbPDZfTSfqLP4tSvyPfod
 aDcFDdd/RhHjDpJqZ52Tyc6QzBfyhwu+s9R+a78TSL47ZMjZpz1QpshG8Sm9JYTs
 z72VlIZeglzhWmzO1FInsL/oT/Hwr9IfpmJpuXBQQObDn3BgvZLuzZyCi35upqrM
 711ei7CKaN0s/jKcWclNRtgUrr10XsgQ6PugOZbli09CC8ushHwvXe/VmxoQFg2+
 Sj14YSfYAY+1QpOiuYc+knrWc7CtPGHgUqBzOoYWMxi9Lqpo5xhD1vkRsFhXxMSg
 GVnAnh/RXl7bGzGWaRv8twG4vU+qYOlEPNgO6/079AxCOrrNrstYrgjBxBSWuxrB
 0UIFQGT69zA5G3cLbIRrXUxO8oIVeEx92YV1TOcgLKP5OXlp/0I8ajnA9b8KoPZa
 He04GdPlZMXTLAqq9MaQRdS0XzX8YQDWbUebqe+w5NW46sLbckkmxaNZs7fOYAfG
 CNHfeRsLp5v0oNbhNyCDSjxqH6uYwKCdCqmDxo6A+fmjmDruHQmZoAK8YISUtPtx
 u4M82jW6Z/xOg4pomxMl4SxzCDhy1pM8PYzyx7Mj82C4XBR8CkrQTP8XD+FQL2Ih
 KhId4tJzx6Q=
 =Rycs
 -----END PGP SIGNATURE-----

Merge tag 'md-3.9-fixes' of git://neil.brown.name/md

Pull md fixes from NeilBrown:
 "A few bugfixes for md

   - recent regressions in raid5
   - recent regressions in dmraid
   - a few instances of CONFIG_MULTICORE_RAID456 linger

  Several tagged for -stable"

* tag 'md-3.9-fixes' of git://neil.brown.name/md:
  md: remove CONFIG_MULTICORE_RAID456 entirely
  md/raid5: ensure sync and DISCARD don't happen at the same time.
  MD: Prevent sysfs operations on uninitialized kobjects
  MD RAID5: Avoid accessing gendisk or queue structs when not available
  md/raid5: schedule_construction should abort if nothing to do.
2013-03-23 15:49:49 -07:00
Laxman Dewangan
57471c8d3c ARM: tegra: fix register address of slink controller
Fix typo on register address of slink3 controller where register
address is wrongly set as 0x7000d480 but it is 0x7000d800.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-22 21:30:16 +01:00
Jan Beulich
909b3fdb0d xen-pciback: notify hypervisor about devices intended to be assigned to guests
For MSI-X capable devices the hypervisor wants to write protect the
MSI-X table and PBA, yet it can't assume that resources have been
assigned to their final values at device enumeration time. Thus have
pciback do that notification, as having the device controlled by it is
a prerequisite to assigning the device to guests anyway.

This is the kernel part of hypervisor side commit 4245d33 ("x86/MSI:
add mechanism to fully protect MSI-X table from PV guest accesses") on
the master branch of git://xenbits.xen.org/xen.git.

CC: stable@vger.kernel.org
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-03-22 10:20:55 -04:00
H. Peter Anvin
f564c24103 x86, microcode_intel_early: Mark apply_microcode_early() as cpuinit
Add missing __cpuinit annotation to apply_microcode_early().

Reported-by: Shaun Ruffell <sruffell@digium.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/20130320170310.GA23362@digium.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-03-21 17:32:36 -07:00
Arnd Bergmann
a8d03eb42b The imx fixes for 3.9, take 3:
- Add the lost dependency check for DEBUG_IMX_UART_PORT back
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQEcBAABAgAGBQJRR/5HAAoJEFBXWFqHsHzOQxsH/2vXHYV3ds9HeBzb9UPIQEo5
 dXKdUiSz/Sh/5gdm43swUOHr8nl3Wm0hqErGM1acyEBUcG9zDIJUMF5UX59tXCKs
 uEFp/TufyDK1VCMwdkUrPZG9WNXnYZuAkAWv6plGZk+ZhHFYAUQccOH9TN8JE11E
 IgmO2NTt9gG83dMF/jxsLQBGE0YcPWzdR34Uyfl4TUwq8w+MTUalWKpajn5pKkQ2
 4rvqNRaXevlVRzKxYH5/Xpd0VeFZH1eK/wbWEQfc1jBXlGv52Fz3OTJWSOCi2z+y
 FQ9DwShaHfHbhwJmM8pgWyHzUsd4iPuPxpsbtAIuM9yhOQkxxDLAshjCSjpJByI=
 =lu20
 -----END PGP SIGNATURE-----

Merge tag 'imx-fixes-3.9-3' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes

From Shawn Guo <shawn.guo@linaro.org>:

The imx fixes for 3.9, take 3:
 - Add the lost dependency check for DEBUG_IMX_UART_PORT back

* tag 'imx-fixes-3.9-3' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: imx: add dependency check for DEBUG_IMX_UART_PORT

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-21 17:40:07 +01:00
Linus Torvalds
cd82346934 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 fair chunk of the linecount comes from a fix for a tracing bug that
  corrupts latency tracing buffers when the overwrite mode is changed on
  the fly - the rest is mostly assorted fewliner fixlets."

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86: Add SNB/SNB-EP scheduling constraints for cycle_activity event
  kprobes/x86: Check Interrupt Flag modifier when registering probe
  kprobes: Make hash_64() as always inlined
  perf: Generate EXIT event only once per task context
  perf: Reset hwc->last_period on sw clock events
  tracing: Prevent buffer overwrite disabled for latency tracers
  tracing: Keep overwrite in sync between regular and snapshot buffers
  tracing: Protect tracer flags with trace_types_lock
  perf tools: Fix LIBNUMA build with glibc 2.12 and older.
  tracing: Fix free of probe entry by calling call_rcu_sched()
  perf/POWER7: Create a sysfs format entry for Power7 events
  perf probe: Fix segfault
  libtraceevent: Remove hard coded include to /usr/local/include in Makefile
  perf record: Fix -C option
  perf tools: check if -DFORTIFY_SOURCE=2 is allowed
  perf report: Fix build with NO_NEWT=1
  perf annotate: Fix build with NO_NEWT=1
  tracing: Fix race in snapshot swapping
2013-03-21 08:29:11 -07:00
Vineet Gupta
367f3fcd92 ARC: Fix the typo in event identifier flags used by ptrace
orig_r8_IS_EXCPN and orig_r8_IS_BRKPT were same values due to a
copy/paste error. Although it looks bad and is wrong, it really doesn't
affect gdb working.

orig_r8_IS_BRKPT is the one relevant to debugging (breakpoints), since
it is used to provide EFA vs. ERET to a ptrace "stop_pc" request.

So when gdb has inserted a breakpoint, orig_r8_IS_BRKPT is already set,
and anything else (i.e. orig_r8_IS_EXCPN) becoming same as it, really
doesn't hurt gdb. The corollary case, could be nasty but nobody uses the
ptrace "stop_pc" request in that case

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-03-20 18:45:45 +05:30
Fenghua Yu
c83a9d5e42 x86-32, microcode_intel_early: Fix crash with CONFIG_DEBUG_VIRTUAL
In 32-bit, __pa_symbol() in CONFIG_DEBUG_VIRTUAL accesses kernel data
(e.g.  max_low_pfn) that not only hasn't been setup yet in such early
boot phase, but since we are in linear mode, cannot even be detected
as uninitialized.

Thus, use __pa_nodebug() rather than __pa_symbol() to get a global
symbol's physical address.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1363705484-27645-1-git-send-email-fenghua.yu@intel.com
Reported-and-tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2013-03-19 19:51:08 -07:00
Paul Bolle
238f5908bd md: remove CONFIG_MULTICORE_RAID456 entirely
Once instance of this Kconfig macro remained after commit
51acbcec6c ("md: remove
CONFIG_MULTICORE_RAID456"). Remove that one too. And, while we're at it,
also remove it from the defconfig files that carry it.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: NeilBrown <neilb@suse.de>
2013-03-20 13:21:14 +11:00
Linus Torvalds
ea4a0ce111 Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Marcelo Tosatti.

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: Fix bounds checking in ioapic indirect register reads (CVE-2013-1798)
  KVM: x86: Convert MSR_KVM_SYSTEM_TIME to use gfn_to_hva_cache functions (CVE-2013-1797)
  KVM: x86: fix for buffer overflow in handling of MSR_KVM_SYSTEM_TIME (CVE-2013-1796)
  KVM: x86: fix deadlock in clock-in-progress request handling
  KVM: allow host header to be included even for !CONFIG_KVM
2013-03-19 18:24:12 -07:00
Linus Torvalds
5c7c3361d1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:
 "Just some minor fixups, a sunsu console setup panic cure, and
  recognition of a Fujitsu sun4v cpu."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: remove unused "config BITS"
  sparc: delete "if !ULTRA_HAS_POPULATION_COUNT"
  sparc64: correctly recognize SPARC64-X chips
  sparc,leon: fix GRPCI2 device0 PCI config space access
  sunsu: Fix panic in case of nonexistent port at "console=ttySY" cmdline option
2013-03-19 14:47:11 -07:00
Linus Torvalds
e7489622d3 - Fix !SMP build error.
- Fix padding computation in struct ucontext (no ABI change).
 - Minor clean-up after the signal patches (unused var).
 - Two old Kconfig options clean-up.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.9 (GNU/Linux)
 
 iQIcBAABAgAGBQJRSKTfAAoJEGvWsS0AyF7xR6IP/0/KsTKWikL5BJb1AIb20OMi
 VKnqZYZefzSb/vQf7lx/k6sZ6aQ8y6CxoXMuEV42CVZG3JgDzUERgvX4/3upFTFM
 5s5+pDLp5ASE97oDpRV0HkYePM0MwQGnyZjD1MBskxcAheYFnPbALGEnV5wG0J5b
 7/FjUmmL5jbQPUhweGh3jHIWOvwNyQfXya+kdKiI/SGHOqqJ5DUY631yiUB5GUEa
 KNCCYHCE2OyfcbZTV0oDFjleeokZC0J1fKRph28925k5DOZX/FDDs2C1i8dqL5hV
 wHWpVFngtqrgHf/vriXn80vXgLoWvdYBD1tuFpDLyEmSpTdbVyjjZPz9pp6L4shb
 oYxcFcPmf5PGH2+cZM2JzZ0dxx0NdnpEJBqdYcsjdwhM3InM0rVAy2mUu1uAEppg
 4CQ/8+KZK4RW1UksuxVA+7oE83Q6Q9xGng66Y39J2d7a+GnDDLtdydYf9Z3e/ayF
 lXnNsb3Hvh+Wq4/cjjwijPCf4WThlU2k1i+i+nAURsNnoLp4VkbzR/vvvwykeLE5
 Wn/zEPUlNRUAN7JuskNx17yMSGpIeWaL46+odX00oDChVTUv/Gvr3ngxetNpvPxU
 ErmVU2njxvrCrxquGA5fh4F3YKhhaW6KRvXYce6dB2jgdQyABmSwextt28TZTGtM
 nGDTtStktMZEt09WbsjZ
 =FN/w
 -----END PGP SIGNATURE-----

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

Pull arm64 fixes from Catalin Marinas:

 - Fix !SMP build error.

 - Fix padding computation in struct ucontext (no ABI change).

 - Minor clean-up after the signal patches (unused var).

 - Two old Kconfig options clean-up.

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  arm64: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORS
  arm64: Do not select GENERIC_HARDIRQS_NO_DEPRECATED
  arm64: fix padding computation in struct ucontext
  arm64: Fix build error with !SMP
  arm64: Removed unused variable in compat_setup_rt_frame()
2013-03-19 13:56:18 -07:00
Paul Bolle
f58b20bd6b sparc: remove unused "config BITS"
sparc's asm/module.h got removed in commit
786d35d45c ("Make most arch asm/module.h
files use asm-generic/module.h"). That removed the only two uses of this
Kconfig symbol. So we can remove its entry too.

> >From arch/sparc/Makefile:
>     ifeq ($(CONFIG_SPARC32),y)
>     [...]
>
>     [...]
>     export BITS    := 32
>     [...]
>
>     else
>     [...]
>
>     [...]
>     export BITS   := 64
>     [...]
>
> So $(BITS) is set depending on whether CONFIG_SPARC32 is set or not.
> Using $(BITS) in sparc's Makefiles is not using CONFIG_BITS. That
> doesn't count as usage of "config BITS".

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19 16:23:51 -04:00
Linus Torvalds
7b1b3fd74e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix ARM BPF JIT handling of negative 'k' values, from Chen Gang.

 2) Insufficient space reserved for bridge netlink values, fix from
    Stephen Hemminger.

 3) Some dst_neigh_lookup*() callers don't interpret error pointer
    correctly, fix from Zhouyi Zhou.

 4) Fix transport match in SCTP active_path loops, from Xugeng Zhang.

 5) Fix qeth driver handling of multi-order SKB frags, from Frank
    Blaschka.

 6) fec driver is missing napi_disable() call, resulting in crashes on
    unload, from Georg Hofmann.

 7) Don't try to handle PMTU events on a listening socket, fix from Eric
    Dumazet.

 8) Fix timestamp location calculations in IP option processing, from
    David Ward.

 9) FIB_TABLE_HASHSZ setting is not controlled by the correct kconfig
    tests, from Denis V Lunev.

10) Fix TX descriptor push handling in SFC driver, from Ben Hutchings.

11) Fix isdn/hisax and tulip/de4x5 kconfig dependencies, from Arnd
    Bergmann.

12) bnx2x statistics don't handle 4GB rollover correctly, fix from
    Maciej Żenczykowski.

13) Openvswitch bug fixes for vport del/new error reporting, missing
    genlmsg_end() call in netlink processing, and mis-parsing of
    LLC/SNAP ethernet types.  From Rich Lane.

14) SKB pfmemalloc state should only be propagated from the head page of
    a compound page, fix from Pavel Emelyanov.

15) Fix link handling in tg3 driver for 5715 chips when autonegotation
    is disabled.  From Nithin Sujir.

16) Fix inverted test of cpdma_check_free_tx_desc return value in
    davinci_emac driver, from Mugunthan V N.

17) vlan_depth is incorrectly calculated in skb_network_protocol(), from
    Li RongQing.

18) Fix probing of Gobi 1K devices in qmi_wwan driver, and fix NCM
    device mode backwards compat in cdc_ncm driver.  From Bjørn Mork.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits)
  inet: limit length of fragment queue hash table bucket lists
  qeth: Fix scatter-gather regression
  qeth: Fix invalid router settings handling
  qeth: delay feature trace
  tcp: dont handle MTU reduction on LISTEN socket
  bnx2x: fix occasional statistics off-by-4GB error
  vhost/net: fix heads usage of ubuf_info
  bridge: Add support for setting BR_ROOT_BLOCK flag.
  bnx2x: add missing napi deletion in error path
  drivers: net: ethernet: ti: davinci_emac: fix usage of cpdma_check_free_tx_desc()
  ethernet/tulip: DE4x5 needs VIRT_TO_BUS
  isdn: hisax: netjet requires VIRT_TO_BUS
  net: cdc_ncm, cdc_mbim: allow user to prefer NCM for backwards compatibility
  rtnetlink: Mask the rta_type when range checking
  Revert "ip_gre: make ipgre_tunnel_xmit() not parse network header as IP unconditionally"
  Fix dst_neigh_lookup/dst_neigh_lookup_skb return value handling bug
  smsc75xx: configuration help incorrectly mentions smsc95xx
  net: fec: fix missing napi_disable call
  net: fec: restart the FEC when PHY speed changes
  skb: Propagate pfmemalloc on skb from head page only
  ...
2013-03-19 13:20:51 -07:00
Paul Bolle
e0b2029614 sparc: delete "if !ULTRA_HAS_POPULATION_COUNT"
Commit 2d78d4beb6 ("[PATCH] bitops:
sparc64: use generic bitops") made the default of GENERIC_HWEIGHT depend
on !ULTRA_HAS_POPULATION_COUNT. But since there's no Kconfig symbol with
that name, this always evaluates to true. Delete this dependency.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19 16:16:39 -04:00
Andy Honig
0b79459b48 KVM: x86: Convert MSR_KVM_SYSTEM_TIME to use gfn_to_hva_cache functions (CVE-2013-1797)
There is a potential use after free issue with the handling of
MSR_KVM_SYSTEM_TIME.  If the guest specifies a GPA in a movable or removable
memory such as frame buffers then KVM might continue to write to that
address even after it's removed via KVM_SET_USER_MEMORY_REGION.  KVM pins
the page in memory so it's unlikely to cause an issue, but if the user
space component re-purposes the memory previously used for the guest, then
the guest will be able to corrupt that memory.

Tested: Tested against kvmclock unit test

Signed-off-by: Andrew Honig <ahonig@google.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-03-19 14:17:35 -03:00
Andy Honig
c300aa64dd KVM: x86: fix for buffer overflow in handling of MSR_KVM_SYSTEM_TIME (CVE-2013-1796)
If the guest sets the GPA of the time_page so that the request to update the
time straddles a page then KVM will write onto an incorrect page.  The
write is done byusing kmap atomic to get a pointer to the page for the time
structure and then performing a memcpy to that page starting at an offset
that the guest controls.  Well behaved guests always provide a 32-byte aligned
address, however a malicious guest could use this to corrupt host kernel
memory.

Tested: Tested against kvmclock unit test.

Signed-off-by: Andrew Honig <ahonig@google.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-03-19 14:17:31 -03:00
Paul Bolle
792072066d arm64: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORS
The Kconfig entry for DEBUG_ERRORS is a verbatim copy of the former arm
entry for that symbol. It got removed in v2.6.39 because it wasn't
actually used anywhere. There are still no users of DEBUG_ERRORS so
remove this entry too.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
[catalin.marinas@arm.com: removed option from defconfig]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-03-19 16:19:19 +00:00
Paul Bolle
63b7743fdd arm64: Do not select GENERIC_HARDIRQS_NO_DEPRECATED
Config option GENERIC_HARDIRQS_NO_DEPRECATED was removed in commit
78c8982564 ("genirq: Remove the now obsolete
config options and select statements"), but the select was accidentally
reintroduced in commit 8c2c3df31e ("arm64:
Build infrastructure").

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-03-19 15:39:46 +00:00
Pierrick Hascoet
2105fd550c arc: fix dma_address assignment during dma_map_sg()
Signed-off-by: Pierrick Hascoet <pierrick.hascoet@abilis.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-03-19 15:34:53 +05:30
Shawn Guo
287939a369 ARM: imx: add dependency check for DEBUG_IMX_UART_PORT
While adding i.MX DEBUG_LL selection, commit f8c95fe (ARM: imx: support
DEBUG_LL uart port selection for all i.MX SoCs) leaves Kconfig symbol
DEBUG_IMX_UART_PORT there without any dependency check.  This results in
that everyone gets the symbol in their config, which is someting
undesirable.  Add "depends on ARCH_MXC" for the symbol to prevent that.

Reported-by: Karl Beldan <karl.beldan@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-03-19 13:56:05 +08:00
Marek Vasut
6a15075ece ARM: video: mxs: Fix mxsfb misconfiguring VDCTRL0
The issue fixed by this patch manifests only then using X11
with mxsfb driver. The X11 will display either shifted image
or otherwise distorted image on the LCD.

The problem is that the X11 tries to reconfigure the framebuffer
and along the way calls fb_ops.fb_set_par() with X11's desired
configuration values. The field of particular interest is
fb_info->var.sync which contains non-standard values if
configured by kernel. These are either FB_SYNC_DATA_ENABLE_HIGH_ACT,
FB_SYNC_DOTCLK_FAILING_ACT or both, depending on the platform
configuration. Both of these values are defined in the
include/linux/mxsfb.h file.

The driver interprets these values and configures the LCD controller
accordingly. Yet X11 only has access to the standard values for this
field defined in include/uapi/linux/fb.h and thus, unlike kernel,
omits these special values. This results in distorted image on the
LCD.

This patch moves these non-standard values into new field of the
mxsfb_platform_data structure so the driver can in turn check this
field instead of the video mode field for these specific portions.

Moreover, this patch prefixes these values with MXSFB_SYNC_ prefix
instead of FB_SYNC_ prefix to prevent confusion of subsequent users.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Linux ARM <linux-arm-kernel@lists.infradead.org>
Cc: Linux FBDEV <linux-fbdev@vger.kernel.org>
Cc: Lothar Waßmann <LW@karo-electronics.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-03-19 11:07:58 +08:00
Ben Collins
9997d08806 sgy-cts1000: Remove __dev* attributes
Somehow the driver snuck in with these still in it.

Signed-off-by: Ben Collins <ben.c@servergy.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-18 18:49:10 -07:00
Marcelo Tosatti
c09664bb44 KVM: x86: fix deadlock in clock-in-progress request handling
There is a deadlock in pvclock handling:

cpu0:                                               cpu1:
kvm_gen_update_masterclock()
                                              kvm_guest_time_update()
 spin_lock(pvclock_gtod_sync_lock)
                                               local_irq_save(flags)

spin_lock(pvclock_gtod_sync_lock)

 kvm_make_mclock_inprogress_request(kvm)
  make_all_cpus_request()
   smp_call_function_many()

Now if smp_call_function_many() called by cpu0 tries to call function on
cpu1 there will be a deadlock.

Fix by moving pvclock_gtod_sync_lock protected section outside irq
disabled section.

Analyzed by Gleb Natapov <gleb@redhat.com>
Acked-by: Gleb Natapov <gleb@redhat.com>
Reported-and-Tested-by: Yongjie Ren <yongjie.ren@intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-03-18 18:03:39 -03:00
CQ Tang
66db3feb48 x86-64: Fix the failure case in copy_user_handle_tail()
The increment of "to" in copy_user_handle_tail() will have incremented
before a failure has been noted.  This causes us to skip a byte in the
failure case.

Only do the increment when assured there is no failure.

Signed-off-by: CQ Tang <cq.tang@intel.com>
Link: http://lkml.kernel.org/r/20130318150221.8439.993.stgit@phlsvslse11.ph.intel.com
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: <stable@vger.kernel.org>
2013-03-18 11:32:03 -07:00
Linus Torvalds
991657a39d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
 "A couple of bug fixes, the most hairy on is the flush_tlb_kernel_range
  fix.  Another case of "how could this ever have worked?"."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/kdump: Do not add standby memory for kdump
  drivers/i2c: remove !S390 dependency, add missing GENERIC_HARDIRQS dependencies
  s390/scm: process availability
  s390/scm_blk: suspend writes
  s390/scm_drv: extend notify callback
  s390/scm_blk: fix request number accounting
  s390/mm: fix flush_tlb_kernel_range()
  s390/mm: fix vmemmap size calculation
  s390: critical section cleanup vs. machine checks
2013-03-18 08:19:13 -07:00
Linus Torvalds
1c6ba37b3d arm-soc: bug fixes for 3.9-rc3
Things are calming down for arm-soc as well. This set of bug fixes is
 dominated in size by the at91 platform bug fixes. Some of them were
 meant to go through the framebuffer tree during the merge window, but
 since the framebuffer maintainer could not be reached, I offered to
 take them here. The other notable at91 change is the addition of pinctrl
 definitions to fix the NAND controller.
 
 The rest are mostly simple regression fixes:
 
 * Our removal of VIRT_TO_BUS conflicted with Stephen Rothwell's
   renaming of the Kconfig symbol. You will get a trivial merge conflict
   here, we still want to remove it.
 * missing bits for clocks on imx and s5pv210
 * missing header inclusions in mmp and shmobile
 * typos in s5pv210 camera and vt8500 clock support code
 
 and three trivial fixes for pre-3.8 bugs:
 
 * an old bogus build warning in the joystick driver
 * a misleading Kconfig description
 * a NULL pointer check on davinci
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIVAwUAUUchPmCrR//JCVInAQLxHhAA4bbv0+aS3vhEV8sMomBQ7XpjlI2wJ5wy
 cd2jA04Gb54bQlRkZNuflIHH5xYq9bslR98Y3iEMqPHrxheDV5qgfZ9wO1E5b8wd
 bl/Fj1bj7D7AeQpvhAYHZufQnV4xGSpW7j/6hkEWCDDgla82BaEwQq3aVCqFsZu5
 u41xlWCFYbwS+sEcdALnGmFdEBtNHzsfwkY7AClcunARWcFTyIAm5J2VhO/1Z3eY
 sA31DBizTsxhkfgOEXTDvyH1N3YwcGlm3Mb7J0ZfdU5d5QQlthmU1ims2fVPoo3t
 x1rJNb5HARsJuuuFIgoRa/Vbcytqxj2+MhJGy2cLhsmAxr8L61cb618oniZxxDoW
 y4DMurF790q3uSkJOrhtcAmGBmHNBdTHcvV4U05EYIQl64k/oY+L7IB18ACAHVqO
 LwimbZ+KF1kxv/hVosGbu7l0EKDt7MS4ykc5QJAtiYu7RDikoRmH05742feWfQ+2
 Fy6V1GqIyUCea1cWDjomeTx+lERknSWPweesrcyiRhIs2BsqrtDRDngse/S59Lf9
 mUFiLh+tZqZxTh8HqZbnHbuJoqNvfVyZVYWrvifkH0Ji8VZqeLuzxx/8fBvnCDWz
 tXZOkl4m2U4lVYzkYOLN9VAurEHSYcHOw51IIgQp4IfS3U32sA1a4/fF/ATq0ugP
 tdJBtr7mpzA=
 =oLKI
 -----END PGP SIGNATURE-----

Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC bug fixes from Arnd Bergmann:
 "Things are calming down for arm-soc as well.  This set of bug fixes is
  dominated in size by the at91 platform bug fixes.  Some of them were
  meant to go through the framebuffer tree during the merge window, but
  since the framebuffer maintainer could not be reached, I offered to
  take them here.  The other notable at91 change is the addition of
  pinctrl definitions to fix the NAND controller.

  The rest are mostly simple regression fixes:

   - Our removal of VIRT_TO_BUS conflicted with Stephen Rothwell's
     renaming of the Kconfig symbol.  You will get a trivial merge
     conflict here, we still want to remove it.
   - missing bits for clocks on imx and s5pv210
   - missing header inclusions in mmp and shmobile
   - typos in s5pv210 camera and vt8500 clock support code

  and three trivial fixes for pre-3.8 bugs:

   - an old bogus build warning in the joystick driver
   - a misleading Kconfig description
   - a NULL pointer check on davinci"

* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: fix CONFIG_VIRT_TO_BUS handling
  ARM: i.MX35: enable MAX clock
  ARM: Scorpion is a v7 architecture, not v6
  ARM: mmp: add platform_device head file in gplugd
  input/joystick: use get_cycles on ARM
  [media] s5p-fimc: fix s5pv210 build
  clk: vt8500: Fix "fix device clock divisor calculations"
  ARM: i.MX25: Fix DT compilation
  ARM: at91: fix infinite loop in at91_irq_suspend/resume
  ARM: at91: add gpio suspend/resume support when using pinctrl
  ARM: at91: fix LCD-wiring mode
  atmel_lcdfb: fix 16-bpp modes on older SOCs
  ARM: at91: dt: at91sam9x5: complete NAND pinctrl
  ARM: at91: dt: at91sam9x5: correct NAND pins comments
  ARM: davinci: edma: fix dmaengine induced null pointer dereference on da830
  ARM: shmobile: marzen: Include mmc/host.h
  ARM: EXYNOS: Add #dma-cells for generic dma binding support for PL330
  ARM: S5PV210: Fix PL330 DMA controller clkdev entries
2013-03-18 08:17:14 -07:00
Linus Torvalds
a15cd063e1 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Ben Herrenschmidt:
 "Here's a few powerpc fixes for 3.9, mostly regressions (though not all
  from 3.9 merge window) that we've been hammering into shape over the
  last couple of weeks.  They fix booting on Cell and G5 among other
  things (yes, we've been a bit sloppy with older machines this time
  around)."

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Rename USER_ESID_BITS* to ESID_BITS*
  powerpc: Update kernel VSID range
  powerpc: Make VSID_BITS* dependency explicit
  powerpc: Make sure that we alays include CONFIG_BINFMT_ELF
  powerpc/ptrace: Fix brk.len used uninitialised
  powerpc: Fix -mcmodel=medium breakage in prom_init.c
  powerpc: Remove last traces of POWER4_ONLY
  powerpc: Fix cputable entry for 970MP rev 1.0
  powerpc: Fix STAB initialization
2013-03-18 08:12:41 -07:00
Linus Torvalds
6210d421c2 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "Just three fixes this time - a fix for a fix for our memset function,
  fixing the dummy clockevent so that it doesn't interfere with real
  hardware clockevents, and fixing a build error for Tegra."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7675/1: amba: tegra-ahb: Fix build error w/ PM_SLEEP w/o PM_RUNTIME
  ARM: 7674/1: smp: Avoid dummy clockevent being preferred over real hardware clock-event
  ARM: 7670/1: fix the memset fix
2013-03-18 08:11:53 -07:00
Arnd Bergmann
b4811bacbc ARM: fix CONFIG_VIRT_TO_BUS handling
887cbce0 "arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS"
and  4febd95a8 "Select VIRT_TO_BUS directly where needed" from
Stephen Rothwell changed globally how CONFIG_VIRT_TO_BUS is
selected, while my own a5d533ee0 "ARM: disable virt_to_bus/
virt_to_bus almost everywhere" was merged at the same time and
changed which platforms select it on ARM.

The result of this conflict was that we again see CONFIG_VIRT_TO_BUS
on all ARM systems. This patch fixes up the problem and removes
CONFIG_ARCH_NO_VIRT_TO_BUS again on ARM.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
2013-03-18 13:49:57 +00:00