GitHub/exynos8895/android_kernel_samsung_universal8895.git
13 years agoMerge branches 'devel', 'devel-stable' and 'fixes' into for-linus
Russell King [Fri, 27 May 2011 21:59:57 +0000 (22:59 +0100)]
Merge branches 'devel', 'devel-stable' and 'fixes' into for-linus

13 years agoARM: 6945/1: Add unwinding support for division functions
Laura Abbott [Fri, 27 May 2011 16:23:16 +0000 (17:23 +0100)]
ARM: 6945/1: Add unwinding support for division functions

The software division functions never had unwinding annotations
added. Currently, when a division by zero occurs the backtrace shown
will stop at Ldiv0 or some completely unrelated function. Add
unwinding annotations in hopes of getting a more useful backtrace
when a division by zero occurs.

Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Acked-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: kill pmd_off()
Russell King [Thu, 26 May 2011 18:50:30 +0000 (19:50 +0100)]
ARM: kill pmd_off()

pmd_off() has only one user, so lets consolidate this into its only
user.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6944/1: mm: allow ASID 0 to be allocated to tasks
Will Deacon [Thu, 26 May 2011 10:24:25 +0000 (11:24 +0100)]
ARM: 6944/1: mm: allow ASID 0 to be allocated to tasks

Now that ASID 0 is no longer used as a reserved value, allow it to be
allocated to tasks.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6943/1: mm: use TTBR1 instead of reserved context ID
Will Deacon [Thu, 26 May 2011 10:23:43 +0000 (11:23 +0100)]
ARM: 6943/1: mm: use TTBR1 instead of reserved context ID

On ARMv7 CPUs that cache first level page table entries (like the
Cortex-A15), using a reserved ASID while changing the TTBR or flushing
the TLB is unsafe.

This is because the CPU may cache the first level entry as the result of
a speculative memory access while the reserved ASID is assigned. After
the process owning the page tables dies, the memory will be reallocated
and may be written with junk values which can be interpreted as global,
valid PTEs by the processor. This will result in the TLB being populated
with bogus global entries.

This patch avoids the use of a reserved context ID in the v7 switch_mm
and ASID rollover code by temporarily using the swapper_pg_dir pointed
at by TTBR1, which contains only global entries that are not tagged
with ASIDs.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6942/1: mm: make TTBR1 always point to swapper_pg_dir on ARMv6/7
Catalin Marinas [Thu, 26 May 2011 10:22:44 +0000 (11:22 +0100)]
ARM: 6942/1: mm: make TTBR1 always point to swapper_pg_dir on ARMv6/7

This patch makes TTBR1 point to swapper_pg_dir so that global, kernel
mappings can be used exclusively on v6 and v7 cores where they are
needed.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6941/1: cache: ensure MVA is cacheline aligned in flush_kern_dcache_area
Will Deacon [Thu, 26 May 2011 10:20:19 +0000 (11:20 +0100)]
ARM: 6941/1: cache: ensure MVA is cacheline aligned in flush_kern_dcache_area

The v6 and v7 implementations of flush_kern_dcache_area do not align
the passed MVA to the size of a cacheline in the data cache. If a
misaligned address is used, only a subset of the requested area will
be flushed. This has been observed to cause failures in SMP boot where
the secondary_data initialised by the primary CPU is not cacheline
aligned, causing the secondary CPUs to read incorrect values for their
pgd and stack pointers.

This patch ensures that the base address is cacheline aligned before
flushing the d-cache.

Cc: <stable@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: add sendmmsg syscall
Russell King [Thu, 26 May 2011 11:12:13 +0000 (12:12 +0100)]
ARM: add sendmmsg syscall

Commit 228e548e (net: Add sendmmsg socket system call) added the new
sendmmsg syscall.  Add this to the syscall table for ARM.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6863/1: allow hotplug on msm
Jeffrey Ohlstein [Mon, 4 Apr 2011 20:08:25 +0000 (21:08 +0100)]
ARM: 6863/1: allow hotplug on msm

Hotplug support was added in 9f1890a (msm: hotplug: support cpu hotplug
on msm, 2010-12-02)

Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6832/1: mmci: support for ST-Ericsson db8500v2
Philippe Langlais [Fri, 25 Mar 2011 07:51:52 +0000 (08:51 +0100)]
ARM: 6832/1: mmci: support for ST-Ericsson db8500v2

ST-Ericsson modified ARM PrimeCell PL180 block has not got
an updated corresponding amba-id, althought the IP block has
changed in db8500v2. The change was done to the datactrl register.
Using the overrided subversion ID, account for this.

Signed-off-by: Philippe Langlais <philippe.langlais@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6830/1: mach-ux500: force PrimeCell revisions
Linus Walleij [Thu, 24 Mar 2011 15:13:13 +0000 (16:13 +0100)]
ARM: 6830/1: mach-ux500: force PrimeCell revisions

The DB8500v2 and DB5500 has a fifth version of the "PL023" and
PL180 blocks. However the ASIC engineers have forgot to bump the
revision in the PrimeCell peripheral ID registers. Since the
platform is aware of the actual silicon revision we need to
hard-code the periphid from the platform, bumping the subrevision
field to 1.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6829/1: amba: make hardcoded periphid override hardware
Linus Walleij [Thu, 24 Mar 2011 15:12:40 +0000 (16:12 +0100)]
ARM: 6829/1: amba: make hardcoded periphid override hardware

This makes a hardcoded periphid from the platform override any
magic number found in the hardware. This shall henceforth be used
when the information found in the hardware is either missing,
i.e. not encoding the CID with the magic cookie 0xb105f00d, or
incorrect such that the revision number should have been bumped in
hardware, but the silicon designer has failed to do so.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6828/1: mach-ux500: delete SSP PrimeCell ID
Linus Walleij [Thu, 24 Mar 2011 15:12:07 +0000 (16:12 +0100)]
ARM: 6828/1: mach-ux500: delete SSP PrimeCell ID

This is redundant. The correct ID number is right there in the
hardware anyway. We will introduce a mechanism later to hard-code
this for deviant cells.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6827/1: mach-netx: delete hardcoded periphid
Linus Walleij [Thu, 24 Mar 2011 15:11:35 +0000 (16:11 +0100)]
ARM: 6827/1: mach-netx: delete hardcoded periphid

The periphid of the AMBA CLCD controller is hardcoded to a value
that the CLCD driver does not even support.

Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6940/1: fiq: Briefly document driver responsibilities for suspend/resume
Dave Martin [Tue, 24 May 2011 11:11:48 +0000 (12:11 +0100)]
ARM: 6940/1: fiq: Briefly document driver responsibilities for suspend/resume

Drivers which make use of the FIQ interrupt may require the state
of the FIQ mode registers to be preserved across suspend/resume.

Because the FIQ mode registers are not saved and restored
automatically by the kernel, driver authors will need to do the
appropriate save/restore in their own driver suspend/resume
handlers.

Implementing global automatic save/restore of the FIQ state does
not appear appropriate, since this by itself is not sufficient for
FIQ-based drivers to function correctly across suspend/resume in
any case.

This patch adds a brief explanatory note to fiq.h documenting the
requirement placed on driver authors.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6938/1: fiq: Refactor {get,set}_fiq_regs() for Thumb-2
Dave Martin [Mon, 23 May 2011 11:22:10 +0000 (12:22 +0100)]
ARM: 6938/1: fiq: Refactor {get,set}_fiq_regs() for Thumb-2

 * To remove the risk of inconvenient register allocation decisions
   by the compiler, these functions are separated out as pure
   assembler.

 * The apcs frame manipulation code is not applicable for Thumb-2
   (and also not easily compatible).  Since it's not essential to
   have a full frame on these leaf assembler functions, the frame
   manipulation is removed, in the interests of simplicity.

 * Split up ldm/stm instructions to be compatible with Thumb-2,
   as well as avoiding instruction forms deprecated on >= ARMv7.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Reviewed-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6914/1: sparsemem: fix highmem detection when using SPARSEMEM
Will Deacon [Thu, 19 May 2011 12:22:48 +0000 (13:22 +0100)]
ARM: 6914/1: sparsemem: fix highmem detection when using SPARSEMEM

sanity_check_meminfo walks over the registered memory banks and attempts
to split banks across lowmem and highmem when they would otherwise
overlap with the vmalloc space.

When SPARSEMEM is used, there are two potential problems that occur
when the virtual address of the start of a bank is equal to vmalloc_min.

 1.) The end of lowmem is calculated as __pa(vmalloc_min - 1) + 1.
     In the above scenario, this will give the end address of the
     previous bank, rather than the actual bank we are interested in.
     This value is later used as the memblock limit and artificially
     restricts the total amount of available memory.

 2.) The checks to determine whether or not a bank belongs to highmem
     or not only check if __va(bank->start) is greater or less than
     vmalloc_min. In the case that it is equal, the bank is incorrectly
     treated as lowmem, which hoses the vmalloc area.

This patch fixes these two problems by checking whether the virtual
start address of a bank is >= vmalloc_min and then calculating
lowmem_end by finding the virtual end address of the highest lowmem
bank.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6913/1: sparsemem: allow pfn_valid to be overridden when using SPARSEMEM
Will Deacon [Thu, 19 May 2011 12:21:14 +0000 (13:21 +0100)]
ARM: 6913/1: sparsemem: allow pfn_valid to be overridden when using SPARSEMEM

In commit eb33575c ("[ARM] Double check memmap is actually valid with a
memmap has unexpected holes V2"), a new function, memmap_valid_within,
was introduced to mmzone.h so that holes in the memmap which pass
pfn_valid in SPARSEMEM configurations can be detected and avoided.

The fix to this problem checks that the pfn <-> page linkages are
correct by calculating the page for the pfn and then checking that
page_to_pfn on that page returns the original pfn. Unfortunately, in
SPARSEMEM configurations, this results in reading from the page flags to
determine the correct section. Since the memmap here has been freed,
junk is read from memory and the check is no longer robust.

In the best case, reading from /proc/pagetypeinfo will give you the
wrong answer. In the worst case, you get SEGVs, Kernel OOPses and hung
CPUs. Furthermore, ioremap implementations that use pfn_valid to
disallow the remapping of normal memory will break.

This patch allows architectures to provide their own pfn_valid function
instead of using the default implementation used by sparsemem. The
architecture-specific version is aware of the memmap state and will
return false when passed a pfn for a freed page within a valid section.

Acked-by: Mel Gorman <mgorman@suse.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agotmpfs: fix XATTR N overriding POSIX_ACL Y
Eric Paris [Thu, 26 May 2011 02:49:18 +0000 (19:49 -0700)]
tmpfs: fix XATTR N overriding POSIX_ACL Y

Choosing TMPFS_XATTR default N was switching off TMPFS_POSIX_ACL,
even if it had been Y in oldconfig; and Linus reports that PulseAudio
goes subtly wrong unless it can use ACLs on /dev/shm.

Make TMPFS_POSIX_ACL select TMPFS_XATTR (and depend upon TMPFS),
and move the TMPFS_POSIX_ACL entry before the TMPFS_XATTR entry,
to avoid asking unnecessary questions then ignoring their answers.

Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agovideo: mb862xx: udelay need linux/delay.h
Stephen Rothwell [Thu, 26 May 2011 01:09:10 +0000 (11:09 +1000)]
video: mb862xx: udelay need linux/delay.h

Fix this:

  drivers/video/mb862xx/mb862xx-i2c.c: In function 'mb862xx_i2c_wait_event':
  drivers/video/mb862xx/mb862xx-i2c.c:25: error: implicit declaration of function 'udelay'

caused by commit f8a6b1f44833 ("video: mb862xx: add support for
controller's I2C bus adapter").

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/linux-2.6-nsfd
Linus Torvalds [Thu, 26 May 2011 01:10:16 +0000 (18:10 -0700)]
Merge git://git./linux/kernel/git/ebiederm/linux-2.6-nsfd

* git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/linux-2.6-nsfd:
  net: fix get_net_ns_by_fd for !CONFIG_NET_NS
  ns proc: Return -ENOENT for a nonexistent /proc/self/ns/ entry.
  ns: Declare sys_setns in syscalls.h
  net: Allow setting the network namespace by fd
  ns proc: Add support for the ipc namespace
  ns proc: Add support for the uts namespace
  ns proc: Add support for the network namespace.
  ns: Introduce the setns syscall
  ns: proc files for namespace naming policy.

13 years agoslub: remove no-longer used 'unlock_out' label
Linus Torvalds [Thu, 26 May 2011 01:06:54 +0000 (18:06 -0700)]
slub: remove no-longer used 'unlock_out' label

Commit a71ae47a2cbf ("slub: Fix double bit unlock in debug mode")
removed the only goto to this label, resulting in

  mm/slub.c: In function '__slab_alloc':
  mm/slub.c:1834: warning: label 'unlock_out' defined but not used

fixed trivially by the removal of the label itself too.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Christoph Lameter <cl@linux.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Thu, 26 May 2011 00:00:17 +0000 (17:00 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (89 commits)
  bonding: documentation and code cleanup for resend_igmp
  bonding: prevent deadlock on slave store with alb mode (v3)
  net: hold rtnl again in dump callbacks
  Add Fujitsu 1000base-SX PCI ID to tg3
  bnx2x: protect sequence increment with mutex
  sch_sfq: fix peek() implementation
  isdn: netjet - blacklist Digium TDM400P
  via-velocity: don't annotate MAC registers as packed
  xen: netfront: hold RTNL when updating features.
  sctp: fix memory leak of the ASCONF queue when free asoc
  net: make dev_disable_lro use physical device if passed a vlan dev (v2)
  net: move is_vlan_dev into public header file (v2)
  bug.h: Fix build with CONFIG_PRINTK disabled.
  wireless: fix fatal kernel-doc error + warning in mac80211.h
  wireless: fix cfg80211.h new kernel-doc warnings
  iwlagn: dbg_fixed_rate only used when CONFIG_MAC80211_DEBUGFS enabled
  dst: catch uninitialized metrics
  be2net: hash key for rss-config cmd not set
  bridge: initialize fake_rtable metrics
  net: fix __dst_destroy_metrics_generic()
  ...

Fix up trivial conflicts in drivers/staging/brcm80211/brcmfmac/wl_cfg80211.c

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Linus Torvalds [Wed, 25 May 2011 23:55:55 +0000 (16:55 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/cjb/mmc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (75 commits)
  mmc: core: eMMC bus width may not work on all platforms
  mmc: sdhci: Auto-CMD23 fixes.
  mmc: sdhci: Auto-CMD23 support.
  mmc: core: Block CMD23 support for UHS104/SDXC cards.
  mmc: sdhci: Implement MMC_CAP_CMD23 for SDHCI.
  mmc: core: Use CMD23 for multiblock transfers when we can.
  mmc: quirks: Add/remove quirks conditional support.
  mmc: Add new VUB300 USB-to-SD/SDIO/MMC driver
  mmc: sdhci-pxa: Add quirks for DMA/ADMA to match h/w
  mmc: core: duplicated trial with same freq in mmc_rescan_try_freq()
  mmc: core: add support for eMMC Dual Data Rate
  mmc: core: eMMC signal voltage does not use CMD11
  mmc: sdhci-pxa: add platform code for UHS signaling
  mmc: sdhci: add hooks for setting UHS in platform specific code
  mmc: core: clear MMC_PM_KEEP_POWER flag on resume
  mmc: dw_mmc: fixed wrong regulator_enable in suspend/resume
  mmc: sdhi: allow powering down controller with no card inserted
  mmc: tmio: runtime suspend the controller, where possible
  mmc: sdhi: support up to 3 interrupt sources
  mmc: sdhi: print physical base address and clock rate
  ...

13 years agoMerge branch 'kconfig-for-40' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek...
Linus Torvalds [Wed, 25 May 2011 23:54:01 +0000 (16:54 -0700)]
Merge branch 'kconfig-for-40' of git://git./linux/kernel/git/mmarek/kbuild-2.6

* 'kconfig-for-40' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  xconfig: merge code path to conf_write()
  kconfig: do not record timestamp in .config
  gconfig: Hide unused left treeview when start up the interface
  gconfig: enable rules hint for main treeviews
  MAINTAINERS: Update KCONFIG entry
  kconfig-language: add to hints
  kconfig: Document the new "visible if" syntax
  kconfig: quiet commands when V=0
  kconfig: change update-po-config to reflect new layout of arch/um
  kconfig: make update-po-config work in KBUILD_OUTPUT
  kconfig: rearrange clean-files
  kconfig: change gconf to modify hostprogs-y like nconf and mconf
  kconfig: change qconf to modify hostprogs-y like nconf and mconf
  kconfig: only build kxgettext when needed
  nconfig: Silence unused return values from wattrset
  kconfig: Do not record timestamp in auto.conf and autoconf.h
  kconfig: get rid of unused flags
  kconfig: allow multiple inclusion of the same file
  kconfig: Avoid buffer underrun in choice input

13 years agoMerge branch 'for-2.6.40' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc
Linus Torvalds [Wed, 25 May 2011 23:53:14 +0000 (16:53 -0700)]
Merge branch 'for-2.6.40' of git://git./linux/kernel/git/oleg/misc

* 'for-2.6.40' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc:
  signal: sys_pause() should check signal_pending()
  ptrace: ptrace_resume() shouldn't wake up !TASK_TRACED thread

13 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelv...
Linus Torvalds [Wed, 25 May 2011 23:52:50 +0000 (16:52 -0700)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/jdelvare/staging

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: New driver for the SMSC EMC6W201
  hwmon: (abituguru) Depend on DMI
  hwmon: (it87) Use request_muxed_region
  hwmon: (sch5627) Trigger Vbat measurements
  hwmon: (sch5627) Add sch5627_send_cmd function
  i8k: Integrate with the hwmon subsystem
  hwmon: (max6650) Properly support the MAX6650
  hwmon: (max6650) Drop device detection
  Move ACPI power meter driver to hwmon
  hwmon: (f71882fg) Add support for F71808A
  hwmon: (f71882fg) Split has_beep in fan_has_beep and temp_has_beep
  hwmon: (asc7621) Drop duplicate dependency
  hwmon: (jc42) Change detection class
  hwmon: Add driver for AMD family 15h processor power information
  hwmon: (k10temp) Add support for Fam15h (Bulldozer)
  hwmon: Use helper functions to set and get driver data
  i8k: Avoid lahf in 64-bit code

13 years agoMerge branch 'for-rmk' of git://github.com/at91linux/linux-2.6-at91 into devel-stable
Russell King [Wed, 25 May 2011 23:41:21 +0000 (00:41 +0100)]
Merge branch 'for-rmk' of git://github.com/at91linux/linux-2.6-at91 into devel-stable

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Linus Torvalds [Wed, 25 May 2011 22:35:32 +0000 (15:35 -0700)]
Merge git://git./linux/kernel/git/cmetcalf/linux-tile

* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: (26 commits)
  arch/tile: prefer "tilepro" as the name of the 32-bit architecture
  compat: include aio_abi.h for aio_context_t
  arch/tile: cleanups for tilegx compat mode
  arch/tile: allocate PCI IRQs later in boot
  arch/tile: support signal "exception-trace" hook
  arch/tile: use better definitions of xchg() and cmpxchg()
  include/linux/compat.h: coding-style fixes
  tile: add an RTC driver for the Tilera hypervisor
  arch/tile: finish enabling support for TILE-Gx 64-bit chip
  compat: fixes to allow working with tile arch
  arch/tile: update defconfig file to something more useful
  tile: do_hardwall_trap: do not play with task->sighand
  tile: replace mm->cpu_vm_mask with mm_cpumask()
  tile,mn10300: add device parameter to dma_cache_sync()
  audit: support the "standard" <asm-generic/unistd.h>
  arch/tile: clarify flush_buffer()/finv_buffer() function names
  arch/tile: kernel-related cleanups from removing static page size
  arch/tile: various header improvements for building drivers
  arch/tile: disable GX prefetcher during cache flush
  arch/tile: tolerate disabling CONFIG_BLK_DEV_INITRD
  ...

13 years agoMerge branch 'for-torvalds' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
Linus Torvalds [Wed, 25 May 2011 22:35:03 +0000 (15:35 -0700)]
Merge branch 'for-torvalds' of git://git./linux/kernel/git/linusw/linux-stericsson

* 'for-torvalds' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
  mach-ux500: voltage domain regulators for DB8500
  cpufreq: make DB8500 cpufreq driver compile
  cpufreq: update DB8500 cpufreq driver
  mach-ux500: move CPUfreq driver to cpufreq subsystem
  mfd: add DB5500 PRCMU driver
  mfd: update DB8500 PRCMU driver
  mach-ux500: move the DB8500 PRCMU driver to MFD
  mach-ux500: make PRCMU base address dynamic
  mach-ux500: rename PRCMU driver per SoC
  mach-ux500: update ASIC version detection
  mach-ux500: update SoC and board IRQ handling
  mach-ux500: update the DB5500 register file
  mach-ux500: update the DB8500 register file

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier...
Linus Torvalds [Wed, 25 May 2011 22:34:14 +0000 (15:34 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/vapier/blackfin

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (37 commits)
  Blackfin: use new common PERCPU_INPUT define
  MAINTAINERS: Fix Analog Devices mailinglist address
  Blackfin: boards: update ASoC resources after machine driver overhaul
  Blackfin: work around anomaly 05000480
  Blackfin: fix addr type with bfin_write_{or,and} helpers
  Blackfin: convert /proc/sram to seq_file
  Blackfin: switch /proc/gpio to seq_file
  Blackfin: fix indentation with bfin_read() helper
  Blackfin: convert old cpumask API to new one
  Blackfin: don't touch task->cpus_allowed directly
  Blackfin: don't touch cpu_possible_map and cpu_present_map directly
  Blackfin: bf548-ezkit/bf561-ezkit: update nor flash layout
  Blackfin: initial perf_event support
  Blackfin: update anomaly lists to latest public info
  Blackfin: use on-chip reset func with newer parts
  Blackfin: bf533-stamp/bf537-stamp: drop ad1980 from defconfigs
  Blackfin: optimize MMR reads during startup a bit
  Blackfin: bf537: demux port H mask A and emac rx ints
  Blackfin: bf537: fix excessive gpio int demuxing
  Blackfin: bf54x: drop unused pm gpio handling
  ...

13 years agoMerge branch 'rmobile-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal...
Linus Torvalds [Wed, 25 May 2011 22:33:25 +0000 (15:33 -0700)]
Merge branch 'rmobile-latest' of git://git./linux/kernel/git/lethal/sh-2.6

* 'rmobile-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (34 commits)
  ARM: mach-shmobile: mackerel: add renesas_usbhs support for USB1
  ARM: mach-shmobile: Correct the G4EVM SDHI0 I/O range.
  ARM: arch-shmobile: sh7372: add renesas_usbhs irq support
  ARM: mach-shmobile: sh73a0: mark DMA slave ID 0 as invalid
  ARM: mach-shmobile: mark DMA slave ID 0 as invalid
  ARM: mach-shmobile: Enable DMAEngine for SDHI on AG5EVM
  ARM: mach-shmobile: Enable DMAEngine for MMCIF on AG5EVM
  ARM: mach-shmobile: sh73a0 DMA Engine support for SY-DMAC
  dmaengine: shdma: Update SH_DMAC_MAX_CHANNELS to 20
  dmaengine: shdma: Fix SH_DMAC_MAX_CHANNELS handling
  dmaengine: shdma: Make second memory window optional
  ARM: mach-shmobile: Tidy up after SH7372 pm changes.
  ARM: mach-shmobile: sh7372 Core Standby CPUIdle
  ARM: mach-shmobile: CPUIdle support
  ARM: mach-shmobile: sh7372 Core Standby Suspend-to-RAM
  ARM: mach-shmobile: Suspend-to-RAM support
  mailmap: Add entry for Damian Hobson-Garcia.
  ARM: switch mackerel to dynamically manage the platform camera
  ARM: mach-shmobile: Add SDHI support for AG5EVM and sh73a0
  ARM: arch-shmobile: Use multiple irq vectors for SDHI
  ...

13 years agohrtimers: Fix typo causing erratic timers
Thomas Gleixner [Wed, 25 May 2011 21:08:17 +0000 (23:08 +0200)]
hrtimers: Fix typo causing erratic timers

commit 9ec2690758a5 ("timerfd: Manage cancelable timers in timerfd")
introduced a CONFIG_HIGHRES_TIMERS (should be CONFIG_HIGH_RES_TIMERS)
typo, which caused applications depending on CLOCK_REALTIME timers to
become sluggy due to the fact that the time base of the realtime
timers was not updated when the wall clock time was set.

This causes anything from 100% CPU use for some applications to odd
delays and hickups.

Reported-bisected-and-tested-by: Anca Emanuel <anca.emanuel@gmail.com>
Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Fatfingered-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agobonding: documentation and code cleanup for resend_igmp
Flavio Leitner [Wed, 25 May 2011 08:38:58 +0000 (08:38 +0000)]
bonding: documentation and code cleanup for resend_igmp

Improves the documentation about how IGMP resend parameter
works, fix two missing checks and coding style issues.

Signed-off-by: Flavio Leitner <fbl@redhat.com>
Acked-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agobonding: prevent deadlock on slave store with alb mode (v3)
Neil Horman [Wed, 25 May 2011 08:13:01 +0000 (08:13 +0000)]
bonding: prevent deadlock on slave store with alb mode (v3)

This soft lockup was recently reported:

[root@dell-per715-01 ~]# echo +bond5 > /sys/class/net/bonding_masters
[root@dell-per715-01 ~]# echo +eth1 > /sys/class/net/bond5/bonding/slaves
bonding: bond5: doing slave updates when interface is down.
bonding bond5: master_dev is not up in bond_enslave
[root@dell-per715-01 ~]# echo -eth1 > /sys/class/net/bond5/bonding/slaves
bonding: bond5: doing slave updates when interface is down.

BUG: soft lockup - CPU#12 stuck for 60s! [bash:6444]
CPU 12:
Modules linked in: bonding autofs4 hidp rfcomm l2cap bluetooth lockd sunrpc
be2d
Pid: 6444, comm: bash Not tainted 2.6.18-262.el5 #1
RIP: 0010:[<ffffffff80064bf0>]  [<ffffffff80064bf0>]
.text.lock.spinlock+0x26/00
RSP: 0018:ffff810113167da8  EFLAGS: 00000286
RAX: ffff810113167fd8 RBX: ffff810123a47800 RCX: 0000000000ff1025
RDX: 0000000000000000 RSI: ffff810123a47800 RDI: ffff81021b57f6f8
RBP: ffff81021b57f500 R08: 0000000000000000 R09: 000000000000000c
R10: 00000000ffffffff R11: ffff81011d41c000 R12: ffff81021b57f000
R13: 0000000000000000 R14: 0000000000000282 R15: 0000000000000282
FS:  00002b3b41ef3f50(0000) GS:ffff810123b27940(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00002b3b456dd000 CR3: 000000031fc60000 CR4: 00000000000006e0

Call Trace:
 [<ffffffff80064af9>] _spin_lock_bh+0x9/0x14
 [<ffffffff886937d7>] :bonding:tlb_clear_slave+0x22/0xa1
 [<ffffffff8869423c>] :bonding:bond_alb_deinit_slave+0xba/0xf0
 [<ffffffff8868dda6>] :bonding:bond_release+0x1b4/0x450
 [<ffffffff8006457b>] __down_write_nested+0x12/0x92
 [<ffffffff88696ae4>] :bonding:bonding_store_slaves+0x25c/0x2f7
 [<ffffffff801106f7>] sysfs_write_file+0xb9/0xe8
 [<ffffffff80016b87>] vfs_write+0xce/0x174
 [<ffffffff80017450>] sys_write+0x45/0x6e
 [<ffffffff8005d28d>] tracesys+0xd5/0xe0

It occurs because we are able to change the slave configuarion of a bond while
the bond interface is down.  The bonding driver initializes some data structures
only after its ndo_open routine is called.  Among them is the initalization of
the alb tx and rx hash locks.  So if we add or remove a slave without first
opening the bond master device, we run the risk of trying to lock/unlock a
spinlock that has garbage for data in it, which results in our above softlock.

Note that sometimes this works, because in many cases an unlocked spinlock has
the raw_lock parameter initialized to zero (meaning that the kzalloc of the
net_device private data is equivalent to calling spin_lock_init), but thats not
true in all cases, and we aren't guaranteed that condition, so we need to pass
the relevant spinlocks through the spin_lock_init function.

Fix it by moving the spin_lock_init calls for the tx and rx hashtable locks to
the ndo_init path, so they are ready for use by the bond_store_slaves path.

Change notes:
v2) Based on conversation with Jay and Nicolas it seems that the ability to
enslave devices while the bond master is down should be safe to do.  As such
this is an outlier bug, and so instead we'll just initalize the errant spinlocks
in the init path rather than the open path, solving the problem.  We'll also
remove the warnings about the bond being down during enslave operations, since
it should be safe

v3) Fix spelling error

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Reported-by: jtluka@redhat.com
CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: nicolas.2p.debian@gmail.com
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: hold rtnl again in dump callbacks
Eric Dumazet [Wed, 25 May 2011 07:34:04 +0000 (07:34 +0000)]
net: hold rtnl again in dump callbacks

Commit e67f88dd12f6 (dont hold rtnl mutex during netlink dump callbacks)
missed fact that rtnl_fill_ifinfo() must be called with rtnl held.

Because of possible deadlocks between two mutexes (cb_mutex and rtnl),
its not easy to solve this problem, so revert this part of the patch.

It also forgot one rcu_read_unlock() in FIB dump_rules()

Add one ASSERT_RTNL() in rtnl_fill_ifinfo() to remind us the rule.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Patrick McHardy <kaber@trash.net>
CC: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoAdd Fujitsu 1000base-SX PCI ID to tg3
Meelis Roos [Wed, 25 May 2011 05:43:47 +0000 (05:43 +0000)]
Add Fujitsu 1000base-SX PCI ID to tg3

This patch adds the PCI ID of Fujitsu 1000base-SX NIC to tg3 driver.
Tested to detect the card, MAC and serdes, not tested with link at the
moment since I have no fiber switch here. I did not add new constants to
the pci_ids.h header file since these constants are used only here.

Signed-off-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agobnx2x: protect sequence increment with mutex
Dmitry Kravkov [Wed, 25 May 2011 04:55:51 +0000 (04:55 +0000)]
bnx2x: protect sequence increment with mutex

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosch_sfq: fix peek() implementation
Eric Dumazet [Wed, 25 May 2011 04:40:11 +0000 (04:40 +0000)]
sch_sfq: fix peek() implementation

Since commit eeaeb068f139 (sch_sfq: allow big packets and be fair),
sfq_peek() can return a different skb that would be normally dequeued by
sfq_dequeue() [ if current slot->allot is negative ]

Use generic qdisc_peek_dequeued() instead of custom implementation, to
get consistent result.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Jarek Poplawski <jarkao2@gmail.com>
CC: Patrick McHardy <kaber@trash.net>
CC: Jesper Dangaard Brouer <hawk@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoisdn: netjet - blacklist Digium TDM400P
Prarit Bhargava [Wed, 25 May 2011 02:12:23 +0000 (02:12 +0000)]
isdn: netjet - blacklist Digium TDM400P

[2nd try ... 1st attempt didn't make it to netdev mailing list]

A quick google search reveals that people with this card are blacklisting it
in the initramfs and in the module blacklist based on a statement that it
is unsupported. Since the older Digium is also unsupported I'm pretty
confident that this newer card is also not supported.

lspci -xxx -vv shows

04:07.0 Communication controller: Tiger Jet Network Inc. Tiger3XX Modem/ISDN interface
        Subsystem: Device b100:0003
P.

----8<----
The Asterisk Voice Card, DIGIUM TDM400P is unsupported by the netjet driver.
Blacklist it like the Digium X100P/X101P card.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agovia-velocity: don't annotate MAC registers as packed
Ulrich Hecht [Wed, 25 May 2011 01:07:22 +0000 (01:07 +0000)]
via-velocity: don't annotate MAC registers as packed

On ARM, memory accesses through packed pointers behave in unexpected
ways in GCC releases 4.3 and higher; see https://lkml.org/lkml/2011/2/2/163
for discussion.

In this particular case, 32-bit I/O registers are accessed bytewise,
causing incorrect setting of the DMA address registers which in turn
leads to an error interrupt storm that brings the system to a halt.

Since the mac_regs structure does not need any packing anyway, this patch
simply removes the attribute to fix the issue.

Signed-off-by: Ulrich Hecht <uli@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoxen: netfront: hold RTNL when updating features.
Ian Campbell [Tue, 24 May 2011 21:56:02 +0000 (21:56 +0000)]
xen: netfront: hold RTNL when updating features.

Konrad reports:
[    0.930811] RTNL: assertion failed at /home/konrad/ssd/linux/net/core/dev.c (5258)
[    0.930821] Pid: 22, comm: xenwatch Not tainted 2.6.39-05193-gd762f43 #1
[    0.930825] Call Trace:
[    0.930834]  [<ffffffff8143bd0e>] __netdev_update_features+0xae/0xe0
[    0.930840]  [<ffffffff8143dd41>] netdev_update_features+0x11/0x30
[    0.930847]  [<ffffffffa0037105>] netback_changed+0x4e5/0x800 [xen_netfront]
[    0.930854]  [<ffffffff8132a838>] xenbus_otherend_changed+0xa8/0xb0
[    0.930860]  [<ffffffff8157ca99>] ? _raw_spin_unlock_irqrestore+0x19/0x20
[    0.930866]  [<ffffffff8132adfe>] backend_changed+0xe/0x10
[    0.930871]  [<ffffffff8132875a>] xenwatch_thread+0xba/0x180
[    0.930876]  [<ffffffff810a8ba0>] ? wake_up_bit+0x40/0x40
[    0.930881]  [<ffffffff813286a0>] ? split+0xf0/0xf0
[    0.930886]  [<ffffffff810a8646>] kthread+0x96/0xa0
[    0.930891]  [<ffffffff815855a4>] kernel_thread_helper+0x4/0x10
[    0.930896]  [<ffffffff815846b3>] ? int_ret_from_sys_call+0x7/0x1b
[    0.930901]  [<ffffffff8157cf61>] ? retint_restore_args+0x5/0x6
[    0.930906]  [<ffffffff815855a0>] ? gs_change+0x13/0x13

This update happens in xenbus watch callback context and hence does not already
hold the rtnl. Take the lock as necessary.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosctp: fix memory leak of the ASCONF queue when free asoc
Wei Yongjun [Tue, 24 May 2011 21:48:02 +0000 (21:48 +0000)]
sctp: fix memory leak of the ASCONF queue when free asoc

If an ASCONF chunk is outstanding, then the following ASCONF
chunk will be queued for later transmission. But when we free
the asoc, we forget to free the ASCONF queue at the same time,
this will cause memory leak.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: make dev_disable_lro use physical device if passed a vlan dev (v2)
Neil Horman [Tue, 24 May 2011 08:31:09 +0000 (08:31 +0000)]
net: make dev_disable_lro use physical device if passed a vlan dev (v2)

If the device passed into dev_disable_lro is a vlan, then repoint the dev
poniter so that we actually modify the underlying physical device.

Signed-of-by: Neil Horman <nhorman@tuxdriver.com>
CC: davem@davemloft.net
CC: bhutchings@solarflare.com
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: move is_vlan_dev into public header file (v2)
Neil Horman [Tue, 24 May 2011 08:31:08 +0000 (08:31 +0000)]
net: move is_vlan_dev into public header file (v2)

Migrate is_vlan_dev() to if_vlan.h so that core networkig can use it

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: davem@davemloft.net
CC: bhutchings@solarflare.com
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agommc: core: eMMC bus width may not work on all platforms
Philip Rakity [Wed, 25 May 2011 01:14:58 +0000 (18:14 -0700)]
mmc: core: eMMC bus width may not work on all platforms

CMD19 -- The offical way to validate bus widths from the JEDEC spec
does not work on all platforms.  Some platforms that use PCI/PCIe
to connect their SD controllers are known to fail.

If the quirk MMC_BUS_WIDTH_TEST is not defined we try to figure out
the bus width by reading the ext_csd at different bus widths and
compare this against the ext_csd read in 1 bit mode.  If no ext_csd
is available we default to 1 bit operations.

Code has been tested on mmp2 against 8 bit eMMC and Transcend 2GB
card that is known to not work in 4 bit mode.  The physical pins
on the card are not present to support 4 bit operation.

Signed-off-by: Philip Rakity <prakity@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
13 years agommc: sdhci: Auto-CMD23 fixes.
Andrei Warkentin [Wed, 25 May 2011 14:42:50 +0000 (10:42 -0400)]
mmc: sdhci: Auto-CMD23 fixes.

Fixes bugs in Auto-CMD23 feature enable decision. Auto-CMD23
should be enabled if host is >= v3, and SDMA is not in use.

USE_ADMA | USE_SDMA | Auto-CMD23
---------+----------+-----------
    0    |    0     |     1
---------+----------+-----------
    0    |    1     |     0
---------+----------+-----------
    1    |    0     |     1
---------+----------+-----------
    1    |    1     |     1

Signed-off-by: Andrei Warkentin <andreiw@motorola.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
13 years agommc: sdhci: Auto-CMD23 support.
Andrei Warkentin [Mon, 23 May 2011 20:06:39 +0000 (15:06 -0500)]
mmc: sdhci: Auto-CMD23 support.

Enables Auto-CMD23 support where available (SDHCI 3.0 controllers)

Signed-off-by: Andrei Warkentin <andreiw@motorola.com>
Tested-by: Arindam Nath <arindam.nath@amd.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
13 years agommc: core: Block CMD23 support for UHS104/SDXC cards.
Andrei Warkentin [Mon, 23 May 2011 20:06:38 +0000 (15:06 -0500)]
mmc: core: Block CMD23 support for UHS104/SDXC cards.

SD cards operating at UHS104 or better support SET_BLOCK_COUNT.

Signed-off-by: Andrei Warkentin <andreiw@motorola.com>
Reviewed-by: Arindam Nath <arindam.nath@amd.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
13 years agommc: sdhci: Implement MMC_CAP_CMD23 for SDHCI.
Andrei Warkentin [Mon, 23 May 2011 20:06:37 +0000 (15:06 -0500)]
mmc: sdhci: Implement MMC_CAP_CMD23 for SDHCI.

Implements support for multiblock transfers bounded
by SET_BLOCK_COUNT (CMD23).

Signed-off-by: Andrei Warkentin <andreiw@motorola.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
13 years agommc: core: Use CMD23 for multiblock transfers when we can.
Andrei Warkentin [Mon, 23 May 2011 20:06:36 +0000 (15:06 -0500)]
mmc: core: Use CMD23 for multiblock transfers when we can.

CMD23-prefixed instead of open-ended multiblock transfers
have a performance advantage on some MMC cards.

Signed-off-by: Andrei Warkentin <andreiw@motorola.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
13 years agoMerge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux...
Russell King [Wed, 25 May 2011 20:47:48 +0000 (21:47 +0100)]
Merge branch 'for-rmk' of git://git./linux/kernel/git/kgene/linux-samsung into devel-stable

Conflicts:
arch/arm/Kconfig
arch/arm/mach-exynos4/mach-nuri.c

13 years agoarch/tile: prefer "tilepro" as the name of the 32-bit architecture
Chris Metcalf [Wed, 25 May 2011 19:24:00 +0000 (15:24 -0400)]
arch/tile: prefer "tilepro" as the name of the 32-bit architecture

With this change, you can (and should) build with ARCH=tilepro for the
current 32-bit chips.  Building with ARCH=tile continues to work, but
we've renamed the defconfig file to tilepro_defconfig for consistency.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
13 years agoMerge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
Linus Torvalds [Wed, 25 May 2011 19:04:15 +0000 (12:04 -0700)]
Merge branch 'misc' of git://git./linux/kernel/git/mmarek/kbuild-2.6

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  export_report: use warn() to issue WARNING, so they go to stderr
  export_report: sort SECTION 2 output
  export_report: do collectcfiles work in perl itself
  kbuild: make versioncheck work in KBUILD_OUTDIR
  kbuild: make includecheck work in KBUILD_OUTDIR
  kbuild: make headerdep work in KBUILD_OUTDIR
  kbuild: add targets to PHONY
  kbuild: don't warn about include/linux/version.h not including itself
  eradicate bashisms in scripts/patch-kernel

13 years agoMerge branch 'packaging' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek...
Linus Torvalds [Wed, 25 May 2011 19:03:47 +0000 (12:03 -0700)]
Merge branch 'packaging' of git://git./linux/kernel/git/mmarek/kbuild-2.6

* 'packaging' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  kbuild: Create a kernel-headers RPM
  rpm-pkg: Fix when current directory is a symlink
  Replace '-' in kernel version with '_'

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Wed, 25 May 2011 18:46:31 +0000 (11:46 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (23 commits)
  ceph: fix cap flush race reentrancy
  libceph: subscribe to osdmap when cluster is full
  libceph: handle new osdmap down/state change encoding
  rbd: handle online resize of underlying rbd image
  ceph: avoid inode lookup on nfs fh reconnect
  ceph: use LOOKUPINO to make unconnected nfs fh more reliable
  rbd: use snprintf for disk->disk_name
  rbd: cleanup: make kfree match kmalloc
  rbd: warn on update_snaps failure on notify
  ceph: check return value for start_request in writepages
  ceph: remove useless check
  libceph: add missing breaks in addr_set_port
  libceph: fix TAG_WAIT case
  ceph: fix broken comparison in readdir loop
  libceph: fix osdmap timestamp assignment
  ceph: fix rare potential cap leak
  libceph: use snprintf for unknown addrs
  libceph: use snprintf for formatting object name
  ceph: use snprintf for dirstat content
  libceph: fix uninitialized value when no get_authorizer method is set
  ...

13 years agohwmon: New driver for the SMSC EMC6W201
Jean Delvare [Wed, 25 May 2011 18:43:33 +0000 (20:43 +0200)]
hwmon: New driver for the SMSC EMC6W201

This is a new driver for the SMSC EMC6W201 hardware monitoring device.
The device is functionally close to the EMC6D100 series, but is
register-incompatible.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Harry G McGavran Jr <w5pny@arrl.net>
Tested-by: Jeff Rickman <jrickman@myamigos.us>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
13 years agohwmon: (abituguru) Depend on DMI
Jean Delvare [Wed, 25 May 2011 18:43:33 +0000 (20:43 +0200)]
hwmon: (abituguru) Depend on DMI

The abituguru drivers are only built on X86, where DMI support is now
enabled by default. So let these drivers depend on DMI, for the
following gains:
* Robustness and safety. Detection of these devices is weak and uses
  non-standard methods, it should really be limited to Abit boards
  unless the user explicitly asks otherwise.
* Code simplicity. The code is easier to read without ifdefs.
* Better build testing coverage. Now there's only one way to build the
  drivers, so no risk of build failure on exotic systems.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Alistair John Strachan <alistair@devzero.co.uk>
Acked-by: Hans de Goede <hdegoede@redhat.com>
13 years agohwmon: (it87) Use request_muxed_region
Nat Gurumoorthy [Wed, 25 May 2011 18:43:33 +0000 (20:43 +0200)]
hwmon: (it87) Use request_muxed_region

Serialize access to the hardware by using "request_muxed_region" macro
defined by Alan Cox. Call to this macro will hold off the requestor if
the resource is currently busy. "superio_enter" will return an error
if call to "request_muxed_region" fails. Rest of the code change is to
ripple an error return from superio_enter to the top level.

Signed-off-by: Nat Gurumoorthy <natg@google.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
13 years agohwmon: (sch5627) Trigger Vbat measurements
Hans de Goede [Wed, 25 May 2011 18:43:33 +0000 (20:43 +0200)]
hwmon: (sch5627) Trigger Vbat measurements

The sch5627 needs to be explicitly told to start an adc conversion
for Vbat, once in a while. Without this Vbat may read 0, and will never
get updated.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
13 years agohwmon: (sch5627) Add sch5627_send_cmd function
Hans de Goede [Wed, 25 May 2011 18:43:33 +0000 (20:43 +0200)]
hwmon: (sch5627) Add sch5627_send_cmd function

This patch generalizes sch5627_read_virtual_reg so that it can
be used to write virtual regs too.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Sigend-off-by: Jean Delvare <khali@linux-fr.org>
13 years agoi8k: Integrate with the hwmon subsystem
Jean Delvare [Wed, 25 May 2011 18:43:33 +0000 (20:43 +0200)]
i8k: Integrate with the hwmon subsystem

Let i8k create an hwmon class device so that libsensors will expose
the CPU temperature and fan speeds to monitoring applications.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Massimo Dal Zotto <dz@debian.org>
13 years agohwmon: (max6650) Properly support the MAX6650
Jean Delvare [Wed, 25 May 2011 18:43:32 +0000 (20:43 +0200)]
hwmon: (max6650) Properly support the MAX6650

The MAX6650 has only one fan input.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: "Hans J. Koch" <hjk@hansjkoch.de>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
13 years agohwmon: (max6650) Drop device detection
Jean Delvare [Wed, 25 May 2011 18:43:32 +0000 (20:43 +0200)]
hwmon: (max6650) Drop device detection

MAX6650 device detection is unreliable, we got reports of false
positives. We now have many ways to let users instantiate the devices
explicitly, so unreliable detection should be dropped.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: "Hans J. Koch" <hjk@hansjkoch.de>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
13 years agoMove ACPI power meter driver to hwmon
Jean Delvare [Wed, 25 May 2011 18:43:32 +0000 (20:43 +0200)]
Move ACPI power meter driver to hwmon

As discussed earlier, the ACPI power meter driver would better live
in drivers/hwmon, as its only purpose is to create hwmon-style
interfaces for ACPI 4.0 power meter devices. Users are more likely to
look for it there, and less likely to accidentally hide it by
unselecting its dependencies.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: "Darrick J. Wong" <djwong@us.ibm.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Len Brown <lenb@kernel.org>
13 years agohwmon: (f71882fg) Add support for F71808A
Hans de Goede [Wed, 25 May 2011 18:43:32 +0000 (20:43 +0200)]
hwmon: (f71882fg) Add support for F71808A

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
13 years agohwmon: (f71882fg) Split has_beep in fan_has_beep and temp_has_beep
Hans de Goede [Wed, 25 May 2011 18:43:32 +0000 (20:43 +0200)]
hwmon: (f71882fg) Split has_beep in fan_has_beep and temp_has_beep

Needed for upcoming support of the F71808A.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
13 years agohwmon: (asc7621) Drop duplicate dependency
Jean Delvare [Wed, 25 May 2011 18:43:32 +0000 (20:43 +0200)]
hwmon: (asc7621) Drop duplicate dependency

The config SENSORS_ASC7621 entry is inside an if HWMON / endif block,
so it already depends on HWMON.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
13 years agohwmon: (jc42) Change detection class
Jean Delvare [Wed, 25 May 2011 18:43:32 +0000 (20:43 +0200)]
hwmon: (jc42) Change detection class

While the JC42-compatible chips are temperature sensors, I2C_CLASS_SPD
makes more sense because these chips always live on memory modules.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
13 years agohwmon: Add driver for AMD family 15h processor power information
Andreas Herrmann [Wed, 25 May 2011 18:43:31 +0000 (20:43 +0200)]
hwmon: Add driver for AMD family 15h processor power information

This CPU family provides NB register values to gather following
TDP information

* ProcessorPwrWatts: Specifies in Watts the maximum amount of power
  the processor can support.
* CurrPwrWatts: Specifies in Watts the current amount of power being
  consumed by the processor.

This driver provides

* power1_crit (ProcessorPwrWatts)
* power1_input (CurrPwrWatts)

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
13 years agohwmon: (k10temp) Add support for Fam15h (Bulldozer)
Andre Przywara [Wed, 25 May 2011 18:43:31 +0000 (20:43 +0200)]
hwmon: (k10temp) Add support for Fam15h (Bulldozer)

AMDs upcoming CPUs use the same mechanism for the internal
temperature reporting as the Fam10h CPUs, so we just needed to add
the appropriate PCI-ID to the list.
This allows to use the k10temp driver on those CPUs.
While at it change the Kconfig entry to be more generic.

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
13 years agohwmon: Use helper functions to set and get driver data
Jean Delvare [Wed, 25 May 2011 18:43:31 +0000 (20:43 +0200)]
hwmon: Use helper functions to set and get driver data

Use helper functions to set and get driver data. This is more elegant.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
13 years agoi8k: Avoid lahf in 64-bit code
Luca Tettamanti [Wed, 25 May 2011 18:43:31 +0000 (20:43 +0200)]
i8k: Avoid lahf in 64-bit code

i8k uses lahf to read the flag register in 64-bit code; early x86-64
CPUs, however, lack this instruction and we get an invalid opcode
exception at runtime.
Use pushf to load the flag register into the stack instead.

Signed-off-by: Luca Tettamanti <kronos.it@gmail.com>
Reported-by: Jeff Rickman <jrickman@myamigos.us>
Tested-by: Jeff Rickman <jrickman@myamigos.us>
Tested-by: Harry G McGavran Jr <w5pny@arrl.net>
Cc: stable@kernel.org
Cc: Massimo Dal Zotto <dz@debian.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
13 years agoMerge branch 'for-davem' of ssh://master.kernel.org/pub/scm/linux/kernel/git/linville...
David S. Miller [Wed, 25 May 2011 17:28:55 +0000 (13:28 -0400)]
Merge branch 'for-davem' of ssh:///linux/kernel/git/linville/wireless-next-2.6

13 years agosignal: sys_pause() should check signal_pending()
Oleg Nesterov [Wed, 25 May 2011 17:22:27 +0000 (19:22 +0200)]
signal: sys_pause() should check signal_pending()

ERESTART* is always wrong without TIF_SIGPENDING. Teach sys_pause()
to handle the spurious wakeup correctly.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
13 years agoptrace: ptrace_resume() shouldn't wake up !TASK_TRACED thread
Oleg Nesterov [Wed, 25 May 2011 17:20:21 +0000 (19:20 +0200)]
ptrace: ptrace_resume() shouldn't wake up !TASK_TRACED thread

It is not clear why ptrace_resume() does wake_up_process(). Unless the
caller is PTRACE_KILL the tracee should be TASK_TRACED so we can use
wake_up_state(__TASK_TRACED). If sys_ptrace() races with SIGKILL we do
not need the extra and potentionally spurious wakeup.

If the caller is PTRACE_KILL, wake_up_process() is even more wrong.
The tracee can sleep in any state in any place, and if we have a buggy
code which doesn't handle a spurious wakeup correctly PTRACE_KILL can
be used to exploit it. For example:

int main(void)
{
int child, status;

child = fork();
if (!child) {
int ret;

assert(ptrace(PTRACE_TRACEME, 0,0,0) == 0);

ret = pause();
printf("pause: %d %m\n", ret);

return 0x23;
}

sleep(1);
assert(ptrace(PTRACE_KILL, child, 0,0) == 0);

assert(child == wait(&status));
printf("wait: %x\n", status);

return 0;
}

prints "pause: -1 Unknown error 514", -ERESTARTNOHAND leaks to the
userland. In this case sys_pause() is buggy as well and should be
fixed.

I do not know what was the original rationality behind PTRACE_KILL.
The man page is simply wrong and afaics it was always wrong. Imho
it should be deprecated, or may be it should do send_sig(SIGKILL)
as Denys suggests, but in any case I do not think that the current
behaviour was intentional.

Note: there is another problem, ptrace_resume() changes ->exit_code
and this can race with SIGKILL too. Eventually we should change ptrace
to not use ->exit_code.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh...
Linus Torvalds [Wed, 25 May 2011 16:21:56 +0000 (09:21 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ericvh/v9fs

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  9p: update Documentation pointers
  net/9p: enable 9p to work in non-default network namespace
  net/9p: p9_idpool_get return -1 on error
  fs/9p: Don't clunk dentry fid when we fail to get a writeback inode
  9p: Small cleanup in <net/9p/9p.h>
  9p: remove experimental tag from tested configurations
  9p: typo fixes and minor cleanups
  net/9p: Change linuxdoc names to match functions.

13 years agoMerge branch 'for-2.6.40/splice' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Wed, 25 May 2011 16:20:20 +0000 (09:20 -0700)]
Merge branch 'for-2.6.40/splice' of git://git.kernel.dk/linux-2.6-block

* 'for-2.6.40/splice' of git://git.kernel.dk/linux-2.6-block:
  splice: add wakeup_pipe_readers()

13 years agoMerge branch 'for-2.6.40/drivers' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Wed, 25 May 2011 16:15:35 +0000 (09:15 -0700)]
Merge branch 'for-2.6.40/drivers' of git://git.kernel.dk/linux-2.6-block

* 'for-2.6.40/drivers' of git://git.kernel.dk/linux-2.6-block: (110 commits)
  loop: handle on-demand devices correctly
  loop: limit 'max_part' module param to DISK_MAX_PARTS
  drbd: fix warning
  drbd: fix warning
  drbd: Fix spelling
  drbd: fix schedule in atomic
  drbd: Take a more conservative approach when deciding max_bio_size
  drbd: Fixed state transitions after async outdate-peer-handler returned
  drbd: Disallow the peer_disk_state to be D_OUTDATED while connected
  drbd: Fix for the connection problems on high latency links
  drbd: fix potential activity log refcount imbalance in error path
  drbd: Only downgrade the disk state in case of disk failures
  drbd: fix disconnect/reconnect loop, if ping-timeout == ping-int
  drbd: fix potential distributed deadlock
  lru_cache.h: fix comments referring to ts_ instead of lc_
  drbd: Fix for application IO with the on-io-error=pass-on policy
  xen/p2m: Add EXPORT_SYMBOL_GPL to the M2P override functions.
  xen/p2m/m2p/gnttab: Support GNTMAP_host_map in the M2P override.
  xen/blkback: don't fail empty barrier requests
  xen/blkback: fix xenbus_transaction_start() hang caused by double xenbus_transaction_end()
  ...

13 years agoMerge branch 'for-2.6.40/core' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Wed, 25 May 2011 16:14:07 +0000 (09:14 -0700)]
Merge branch 'for-2.6.40/core' of git://git.kernel.dk/linux-2.6-block

* 'for-2.6.40/core' of git://git.kernel.dk/linux-2.6-block: (40 commits)
  cfq-iosched: free cic_index if cfqd allocation fails
  cfq-iosched: remove unused 'group_changed' in cfq_service_tree_add()
  cfq-iosched: reduce bit operations in cfq_choose_req()
  cfq-iosched: algebraic simplification in cfq_prio_to_maxrq()
  blk-cgroup: Initialize ioc->cgroup_changed at ioc creation time
  block: move bd_set_size() above rescan_partitions() in __blkdev_get()
  block: call elv_bio_merged() when merged
  cfq-iosched: Make IO merge related stats per cpu
  cfq-iosched: Fix a memory leak of per cpu stats for root group
  backing-dev: Kill set but not used var in  bdi_debug_stats_show()
  block: get rid of on-stack plugging debug checks
  blk-throttle: Make no throttling rule group processing lockless
  blk-cgroup: Make cgroup stat reset path blkg->lock free for dispatch stats
  blk-cgroup: Make 64bit per cpu stats safe on 32bit arch
  blk-throttle: Make dispatch stats per cpu
  blk-throttle: Free up a group only after one rcu grace period
  blk-throttle: Use helper function to add root throtl group to lists
  blk-throttle: Introduce a helper function to fill in device details
  blk-throttle: Dynamically allocate root group
  blk-cgroup: Allow sleeping while dynamically allocating a group
  ...

13 years agoMerge branch 'timers-ptp-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 25 May 2011 15:59:42 +0000 (08:59 -0700)]
Merge branch 'timers-ptp-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'timers-ptp-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  ptp: Fix dp83640 build warning when building statically
  ptp: Added a clock driver for the National Semiconductor PHYTER.
  ptp: Added a clock driver for the IXP46x.
  ptp: Added a clock that uses the eTSEC found on the MPC85xx.
  ptp: Added a brand new class driver for ptp clocks.

13 years agoMerge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 25 May 2011 15:58:50 +0000 (08:58 -0700)]
Merge branch 'timers-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  posix-timers: RCU conversion

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6
Linus Torvalds [Wed, 25 May 2011 15:42:37 +0000 (08:42 -0700)]
Merge git://git./linux/kernel/git/lethal/fbdev-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6: (126 commits)
  sh_mobile_meram: Safely disable MERAM operation when not initialized
  video: mb862xxfb: add support for L1 displaying
  video: mb862xx: add support for controller's I2C bus adapter
  video: mb862xxfb: relocate register space to get contiguous vram
  video: mb862xxfb: use pre-initialized configuration for PCI GDCs
  video: mb862xxfb: correct fix.smem_len field initialization
  video: s3c-fb: correct transparency checking in 32bpp
  video: s3c-fb: add gpio setup function to resume function
  fbdev/amifb: Remove superfluous alignment of frame buffer memory
  fbdev/amifb: Do not call panic() if there's not enough Chip RAM
  fbdev/amifb: Correct check for video memory size
  video: mb862xxfb: Require either FB_MB862XX_PCI_GDC or FB_MB862XX_LIME
  video: s3c-fb: add window variant information for S5P
  video: s3c-fb: add additional validate bpps
  video: s3c-fb: correct window osd size offset values
  udlfb: include prefetch.h explicitly
  drivers/video/s3c2410fb.c: Convert release_resource to release_mem_region
  drivers/video/sm501fb.c: Convert release_resource to release_mem_region
  drivers/video: Convert release_resource to release_mem_region
  video, udlfb: Fix two build warnings about 'ignoring return value'
  ...

13 years agodrivers/tty/serial/pch_uart.c needs slab.h
Andrew Morton [Wed, 25 May 2011 00:13:44 +0000 (17:13 -0700)]
drivers/tty/serial/pch_uart.c needs slab.h

alpha allmodconfig:

  drivers/tty/serial/pch_uart.c: In function 'dma_handle_tx':
  drivers/tty/serial/pch_uart.c:873: error: implicit declaration of function 'kzalloc'
  drivers/tty/serial/pch_uart.c:873: warning: assignment makes pointer from integer without a cast
  drivers/tty/serial/pch_uart.c: In function 'pch_uart_init_port':
  drivers/tty/serial/pch_uart.c:1403: warning: assignment makes pointer from integer without a cast

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agodrivers/gpio/ml_ioh_gpio.c needs slab.h
Andrew Morton [Wed, 25 May 2011 00:13:43 +0000 (17:13 -0700)]
drivers/gpio/ml_ioh_gpio.c needs slab.h

alpha allmodconfig:

  drivers/gpio/ml_ioh_gpio.c: In function 'ioh_gpio_probe':
  drivers/gpio/ml_ioh_gpio.c:205: error: implicit declaration of function 'kzalloc'
  drivers/gpio/ml_ioh_gpio.c:205: warning: assignment makes pointer from integer without a cast

also fix this:

  drivers/gpio/ml_ioh_gpio.c:145: warning: 'ioh_gpio_save_reg_conf' defined but not used
  drivers/gpio/ml_ioh_gpio.c:154: warning: 'ioh_gpio_restore_reg_conf' defined but not used

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agodrivers/gpio/vx855_gpio.c needs slab.h
Andrew Morton [Wed, 25 May 2011 00:13:43 +0000 (17:13 -0700)]
drivers/gpio/vx855_gpio.c needs slab.h

alpha allmodconfig:

  drivers/gpio/vx855_gpio.c: In function 'vx855gpio_probe':
  drivers/gpio/vx855_gpio.c:233: error: implicit declaration of function 'kzalloc'
  drivers/gpio/vx855_gpio.c:233: warning: assignment makes pointer from integer without a cast

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agofs/ncpfs/inode.c: suppress used-uninitialised warning
Andrew Morton [Wed, 25 May 2011 00:13:42 +0000 (17:13 -0700)]
fs/ncpfs/inode.c: suppress used-uninitialised warning

We get this spurious warning:

  fs/ncpfs/inode.c: In function 'ncp_fill_super':
  fs/ncpfs/inode.c:451: warning: 'data.mounted_vol[1u]' may be used uninitialized in this function
  fs/ncpfs/inode.c:451: warning: 'data.mounted_vol[2u]' may be used uninitialized in this function
  fs/ncpfs/inode.c:451: warning: 'data.mounted_vol[3u]' may be used uninitialized in this function
  ...

It's notabug, but we can easily fix it with a memset().

Reported-by: Harry Wei <jiaweiwei.xiyou@gmail.com>
Cc: Petr Vandrovec <petr@vandrovec.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agocheckpatch: fix defect in printk(KERN_<LEVEL> 80 column exceptions
Joe Perches [Wed, 25 May 2011 00:13:41 +0000 (17:13 -0700)]
checkpatch: fix defect in printk(KERN_<LEVEL> 80 column exceptions

Currently, printk lines with a only KERN_PREFIX and a quoted string
without a comma or close paren that exceed 80 columns are flagged with a
warning.

ie:
printk(KERN_WARNING "some long string that extends beond 80 cols..."
       "and is continued on another line\n");

Allow this form instead of emitting a warning.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agocheckpatch: add <foo>_<level> and MODULE_<BAR> to 80 column exceptions
Joe Perches [Wed, 25 May 2011 00:13:40 +0000 (17:13 -0700)]
checkpatch: add <foo>_<level> and MODULE_<BAR> to 80 column exceptions

Many module or file local logging functions use specific prefixes other
than pr|dev|netdev.  Allow all forms like foo_printk and foo_err to be
longer than 80 columns.

Also allow MODULE_<BAR> declarations to be longer than 80 columns.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agocheckpatch: add check for line continuations in quoted strings
Joe Perches [Wed, 25 May 2011 00:13:39 +0000 (17:13 -0700)]
checkpatch: add check for line continuations in quoted strings

Add a warning for unterminated quoted strings with line continuations as
these frequently add unwanted whitespace.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agolib: consolidate DEBUG_STACK_USAGE option
Stephen Boyd [Wed, 25 May 2011 00:13:36 +0000 (17:13 -0700)]
lib: consolidate DEBUG_STACK_USAGE option

Most arches define CONFIG_DEBUG_STACK_USAGE exactly the same way.  Move it
to lib/Kconfig.debug so each arch doesn't have to define it.  This
obviously makes the option generic, but that's fine because the config is
already used in generic code.

It's not obvious to me that sysrq-P actually does anything caution by
keeping the most inclusive wording.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Richard Weinberger <richard@nod.at>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agopercpu_counter: change return value and add comments
Shaohua Li [Wed, 25 May 2011 00:13:35 +0000 (17:13 -0700)]
percpu_counter: change return value and add comments

The percpu_counter_*_positive() API in UP case doesn't check if return
value is positive.  Add comments to explain why we don't.  Also if count <
0, returns 0 instead of 1 for *read_positive().

[akpm@linux-foundation.org: tweak comment]
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agolib/genalloc.c: add support for specifying the physical address
Jean-Christophe PLAGNIOL-VILLARD [Wed, 25 May 2011 00:13:34 +0000 (17:13 -0700)]
lib/genalloc.c: add support for specifying the physical address

So we can specify the virtual address as the base of the pool chunk and
then get physical addresses for hardware IP.

For example on at91 we will use this on spi, uart or macb

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Patrice VILCHEZ <patrice.vilchez@atmel.com>
Cc: Jes Sorensen <jes@wildopensource.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoinclude/linux/genalloc.h: add multiple-inclusion guards
Jean-Christophe PLAGNIOL-VILLARD [Wed, 25 May 2011 00:13:33 +0000 (17:13 -0700)]
include/linux/genalloc.h: add multiple-inclusion guards

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Patrice VILCHEZ <patrice.vilchez@atmel.com>
Cc: Jes Sorensen <jes@wildopensource.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agolib: consolidate DEBUG_PER_CPU_MAPS
Stephen Boyd [Wed, 25 May 2011 00:13:32 +0000 (17:13 -0700)]
lib: consolidate DEBUG_PER_CPU_MAPS

DEBUG_PER_CPU_MAPS is used in lib/cpumask.c as well as in
inlcude/linux/cpumask.h and thus it has outgrown its use within x86 and
powerpc alone.  Any arch with SMP support may want to get some more
debugging, so make this option generic.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: <linux-arch@vger.kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agolib: add kstrto*_from_user()
Alexey Dobriyan [Wed, 25 May 2011 00:13:31 +0000 (17:13 -0700)]
lib: add kstrto*_from_user()

There is quite a lot of code which does copy_from_user() + strict_strto*()
or simple_strto*() combo in slightly different ways.

Before doing conversions all over tree, let's get final API correct.

Enter kstrtoull_from_user() and friends.

Typical code which uses them looks very simple:

TYPE val;
int rv;

rv = kstrtoTYPE_from_user(buf, count, 0, &val);
if (rv < 0)
return rv;
[use val]
return count;

There is a tiny semantic difference from the plain kstrto*() API -- the
latter allows any amount of leading zeroes, while the former copies data
into buffer on stack and thus allows leading zeroes as long as it fits
into buffer.

This shouldn't be a problem for typical usecase "echo 42 > /proc/x".

The point is to make reading one integer from userspace _very_ simple and
very bug free.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agolru_cache: use correct type in sizeof for allocation
Ilia Mirkin [Wed, 25 May 2011 00:13:30 +0000 (17:13 -0700)]
lru_cache: use correct type in sizeof for allocation

This has no actual effect, since sizeof(struct hlist_head) ==
sizeof(struct hlist_head *), but it's still the wrong type to use.

The semantic match that finds this problem:
// <smpl>
@@
type T;
identifier x;
@@
T *x;
...
* x = kzalloc(... * sizeof(T*) * ..., ...);
// </smpl>

[akpm@linux-foundation.org: use kcalloc()]
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Acked-by: Lars Ellenberg <lars@linbit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoleds: provide helper to register "leds-gpio" devices
Uwe Kleine-König [Wed, 25 May 2011 00:13:29 +0000 (17:13 -0700)]
leds: provide helper to register "leds-gpio" devices

This function makes a deep copy of the platform data to allow it to live
in init memory.  For a kernel that supports several machines and so
includes the definition for several leds-gpio devices this saves quite
some memory because all but one definition can be free'd after boot.

As the function is used by arch code it must be builtin and so cannot go
into leds-gpio.c.

[akpm@linux-foundation.org: s/CONFIG_LED_REGISTER_GPIO/CONFIG_LEDS_REGISTER_GPIO/]
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Acked-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: H Hartley Sweeten <hartleys@visionengravers.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agodrivers/leds/leds-lm3530.c: add regulator
Shreshtha Kumar Sahu [Wed, 25 May 2011 00:13:28 +0000 (17:13 -0700)]
drivers/leds/leds-lm3530.c: add regulator

Add add regulator support to lm3530 driver.  The lm3530 driver needs to
get proper regulator during device probe and enable it before accessing
the device.  Also it disables the regulator in case of brightness ==
LED_OFF, and puts it back during driver removal.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Shreshtha Kumar Sahu <shreshthakumar.sahu@stericsson.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Shreshtha Kumar Sahu <shreshthakumar.sahu@stericsson.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoleds: remove the leds-h1940 driver
Vasily Khoruzhick [Wed, 25 May 2011 00:13:27 +0000 (17:13 -0700)]
leds: remove the leds-h1940 driver

The H1940 machine now uses leds-gpio and leds-h1940 has no users anymore.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Cc: "Arnaud Patard (Rtp)" <arnaud.patard@rtp-net.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>