Commit Graph

80167 Commits

Author SHA1 Message Date
Sekhar Nori
58b6c5a133 ARM: davinci: da850 evm: fix const qualifier placement
const qualifier was misplaced in couple of definitions.
This fixes the sparse error:

  CHECK   arch/arm/mach-davinci/board-mityomapl138.c
arch/arm/mach-davinci/board-da850-evm.c:404:19: error: Just how const do you want this type to be?
arch/arm/mach-davinci/board-da850-evm.c:568:19: error: Just how const do you want this type to be?

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-17 22:00:09 +05:30
Robert Tivy
5428813499 ARM: davinci: da850 board: add remoteproc support
Add .reserve function for reserving CMA memory block to MACHINE_START.

Add call to remoteproc platform device registration function during init.

Signed-off-by: Robert Tivy <rtivy@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-17 22:00:09 +05:30
Sekhar Nori
215a084dc5 ARM: davinci: ensure global variables are declared
Fix the following sparse warnings by declaring relevant
global variables.

  CHECK   arch/arm/mach-davinci/usb.c
arch/arm/mach-davinci/usb.c:134:12: warning: symbol 'da8xx_register_usb20' was not declared. Should it be static?
arch/arm/mach-davinci/usb.c:169:12: warning: symbol 'da8xx_register_usb11' was not declared. Should it be static?

  CHECK   arch/arm/mach-davinci/pm.c
arch/arm/mach-davinci/pm.c:155:12: warning: symbol 'davinci_pm_init' was not declared. Should it be static?

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-17 19:26:41 +05:30
Sekhar Nori
182e7961ca ARM: davinci: sram.c: fix incorrect type in assignment
Fix missing __iomem attribute. This fixes the sparse warning:

  CHECK   arch/arm/mach-davinci/sram.c
arch/arm/mach-davinci/sram.c:75:8: warning: incorrect type in assignment (different address spaces)
arch/arm/mach-davinci/sram.c:75:8:    expected void *addr
arch/arm/mach-davinci/sram.c:75:8:    got void [noderef] <asn:2>*
arch/arm/mach-davinci/sram.c:81:12: warning: incorrect type in argument 1 (different address spaces)
arch/arm/mach-davinci/sram.c:81:12:    expected void volatile [noderef] <asn:2>*addr
arch/arm/mach-davinci/sram.c:81:12:    got void *addr

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-17 19:26:41 +05:30
Sekhar Nori
267f3c0731 ARM: davinci: da8xx dt: make file local symbols static
Make some file-local functions static. This fixes the sparse
warnings:

  CHECK   arch/arm/mach-davinci/da8xx-dt.c
arch/arm/mach-davinci/da8xx-dt.c:23:13: warning: symbol 'da8xx_uart_clk_enable' was not declared. Should it be static?
arch/arm/mach-davinci/da8xx-dt.c:40:23: warning: symbol 'da850_auxdata_lookup' was not declared. Should it be static?

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-17 19:26:40 +05:30
Robert Tivy
5c71d6181f ARM: davinci: da8xx: add remoteproc support
Add remoteproc platform device for controlling the DSP
on da8xx. The patch uses CMA-based reservation of physical
memory block for DSP use. A new kernel command-line parameter
has been added to allow boot-time specification of the physical
memory block.

Signed-off-by: Robert Tivy <rtivy@ti.com>
[nsekhar@ti.com: edit commit message for readability and
style improvements]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-17 19:26:40 +05:30
Paul Bolle
93bd65150e ARM: davinci: remove test for undefined Kconfig macro
The DaVinci debugging macro contains a check for
CONFIG_DEBUG_DAVINCI_DA8XX_UART0. But there's no corresponding Kconfig
symbol, so this test will always evaluate to false. That Kconfig symbol
is not needed because, as __arch_decomp_setup() shows, there are no
DaVinci DA8XX boards that use UART0 for debugging. We can remove two
lines of unneeded code.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-03 09:43:08 +05:30
Manjunathappa, Prakash
d7ca4c755a ARM: davinci: mmc: derive version information from device name
Remove specifying mmc controller IP version information via platform
data, instead specify device name so that driver derives it from
platform_device_id table. Also change the clock node name to match
the changed dev_id.
Tested on da850-evm to make sure driver loads without clk_get failures.

Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Reviewed-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-03 09:42:16 +05:30
Philip Avinash
bb170e6118 ARM: davinci: da850: add ECAP & EHRPWM clock nodes
Add ECAP and EHRPWM module clock nodes. Also add a clock
node for TBCLK for EHRWPM.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-01 17:17:10 +05:30
Philip Avinash
c6007ffe84 ARM: davinci: clk framework support for enable/disable functionality
DaVinci clock implementation does not support clock enable/disable
functionality on non-PSC clock nodes.

On DA850 SoC, EHRPWM module requires support for enable/disable
of TBCLK controlled using a system module register.

This patch adds a method for enabling/disabling non-PSC clocks
into DaVinci clock implementation.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-01 16:54:47 +05:30
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.
 
 /
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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).
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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.
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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.
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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.
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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
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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
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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.
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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
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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