Commit Graph

333425 Commits

Author SHA1 Message Date
Ralf Baechle
2eaaac508a MIPS: Malta: Fix section mismatch.
LD      arch/mips/pci/built-in.o
WARNING: arch/mips/pci/built-in.o(.devinit.text+0x2a0): Section mismatch in reference from the function malta_piix_func0_fixup() to the variable .init.data:pci_irq
The function __devinit malta_piix_func0_fixup() references
a variable __initdata pci_irq.
If pci_irq is only used by malta_piix_func0_fixup then
annotate pci_irq with a matching annotation.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:14:12 +02:00
Ralf Baechle
3efd5a0db5 MIPS: asm-offset.c: Delete unused irq_cpustat_t struct offsets.
Originally added in 05b541489c48e7fbeec19a92acf8683230750d0a [Merge with
Linux 2.5.5.] over 10 years ago but never been used.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:11:20 +02:00
Manuel Lauss
851d4f5d38 MIPS: Alchemy: Merge PB1100/1500 support into DB1000 code.
The PB1100/1500 are similar to their DB-cousins but with a few
more devices on the bus.

This patch adds PB1100/1500 support to the existing DB1100/1500
code.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: lnux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4338/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:11:20 +02:00
Manuel Lauss
24e8c1a611 MIPS: Alchemy: merge PB1550 support into DB1550 code
The PB1550 is more or less a DB1550 without the PCI IDE controller,
a more complicated (read: configurable) Flash setup and some other
minor changes.  Like the DB1550 it can be automatically detected by
reading the CPLD ID register bits.

This patch adds PB1550 detection and setup to the DB1550 code.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4337/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:11:20 +02:00
Manuel Lauss
bd8510df88 MIPS: Alchemy: Single kernel for DB1200/1300/1550
Combine support for the DB1200/PB1200, DB1300 and DB1550 boards into
a single kernel image.

defconfig-generated image verified on DB1200, DB1300 and DB1550.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4335/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:11:20 +02:00
David Daney
748e787eb6 MIPS: Optimize TLB refill for RI/XI configurations.
We don't have to do a separate shift to eliminate the software bits,
just rotate them into the fill and they will be ignored.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4294/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:11:20 +02:00
Ralf Baechle
981ef0de49 MIPS: proc: Cleanup printing of ASEs.
The number of %s was just getting ridiculous.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:10:43 +02:00
Ralf Baechle
475032564e MIPS: Hardwire detection of DSP ASE Rev 2 for systems, as required.
Most supported systems currently hardwire cpu_has_dsp to 0, so we also
can disable support for cpu_has_dsp2 resulting in a slightly smaller
kernel.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:10:43 +02:00
Steven J. Hill
ee80f7c73d MIPS: Add detection of DSP ASE Revision 2.
[ralf@linux-mips.org: This patch really only detects the ASE and passes its
existence on to userland via /proc/cpuinfo.  The DSP ASE Rev 2. adds new
resources but no resources that would need management by the kernel.]

Signed-off-by: Steven J. Hill <sjhill@mips.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4165/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:05:03 +02:00
David Daney
f59a2d22a0 MIPS: Optimize pgd_init and pmd_init
On a dual issue processor GCC generates code that saves a couple of
clock cycles per loop if we rearrange things slightly.  Checking for
p != end saves a SLTU per loop, moving the increment to the middle can
let it dual issue on multi-issue processors.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4249/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:04:35 +02:00
Al Cooper
a7911a8fd1 MIPS: perf: Add perf functionality for BMIPS5000
Add hardware performance counter support to kernel "perf" code for
BMIPS5000. The BMIPS5000 performance counters are similar to MIPS
MTI cores, so the changes were mostly made in perf_event_mipsxx.c
which is typically for MTI cores.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4109/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:04:34 +02:00
Al Cooper
399aaa2568 MIPS: perf: Split the Kconfig option CONFIG_MIPS_MT_SMP
Split the Kconfig option CONFIG_MIPS_MT_SMP into CONFIG_MIPS_MT_SMP
and CONFIG_MIPS_PERF_SHARED_TC_COUNTERS so some of the code used
for performance counters that are shared between threads can be used
for MIPS cores that are not MT_SMP.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4108/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:04:34 +02:00
Al Cooper
ecb8ee8a89 MIPS: perf: Remove unnecessary #ifdef
The #ifdef for CONFIG_HW_PERF_EVENTS is not needed because the
Makefile will only compile the module if this config option is set.
This means that the code under #else would never be compiled. This
may have been done to leave the original broken code around for
reference, but the FIXME comment above the code already shows the
broken code.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4107/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:04:34 +02:00
Al Cooper
da4b62cd67 MIPS: perf: Add cpu feature bit for PCI (performance counter interrupt)
The PCI (Program Counter Interrupt) bit in the "cause" register
is mandatory for MIPS32R2 cores, but has also been added to some R1
cores (BMIPS5000). This change adds a cpu feature bit to make it
easier to check for and use this feature.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4106/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:04:34 +02:00
Al Cooper
c5600b2dd9 MIPS: perf: Change the "mips_perf_event" table unsupported indicator.
Change the indicator from 0xffffffff in the "event_id" member to
zero in the "cntr_mask" member. This removes the need to initialize
entries that are unsupported. This also solves a problem where the
number of entries in the table was increased based on a globel enum
used for all platforms, but the new unsupported entries were not added
for mips. This was leaving new table entries of all zeros that we not
marked UNSUPPORTED.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4110/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:02:41 +02:00
David Daney
485172b3df MIPS: Align swapper_pg_dir to 64K for better TLB Refill code.
We can save an instruction in the TLB Refill path for kernel mappings
by aligning swapper_pg_dir on a 64K boundary.  The address of
swapper_pg_dir can be generated with a single LUI instead of
LUI/{D}ADDUI.

The alignment of __init_end is bumped up to 64K so there are no holes
between it and swapper_pg_dir, which is placed at the very beginning
of .bss.

The alignment of invalid_pmd_table and invalid_pte_table can be
relaxed to PAGE_SIZE.  We do this by using __page_aligned_bss, which
has the added benefit of eliminating alignment holes in .bss.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-arch@vger.kernel.org,
Cc: linux-kernel@vger.kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
Patchwork: https://patchwork.linux-mips.org/patch/4220/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:02:40 +02:00
David Daney
c87728ca82 vmlinux.lds.h: Allow architectures to add sections to the front of .bss
Follow-on MIPS patch will put an object here that needs 64K alignment
to minimize padding.

For those architectures that don't define BSS_FIRST_SECTIONS, there is
no change.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-arch@vger.kernel.org,
Cc: linux-kernel@vger.kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
Patchwork: https://patchwork.linux-mips.org/patch/4221/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:02:37 +02:00
Joshua Kinard
b4f2a17ba9 Improve atomic.h robustness
I've maintained this patch, originally from Thiemo Seufer in 2004, for a
really long time, but I think it's time for it to get a look at for
possible inclusion.  I have had no problems with it across various SGI
systems over the years.

To quote the post here:
http://www.linux-mips.org/archives/linux-mips/2004-12/msg00000.html

"the atomic functions use so far memory references for the inline
assembler to access the semaphore. This can lead to additional
instructions in the ll/sc loop, because newer compilers don't
expand the memory reference any more but leave it to the assembler.

The appended patch uses registers instead, and makes the ll/sc
arguments more explicit. In some cases it will lead also to better
register scheduling because the register isn't bound to an output
any more."

Signed-off-by: Joshua Kinard <kumba@gentoo.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4029/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:02:36 +02:00
Linus Torvalds
12250d843e Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux
Pull i2c-embedded changes from Wolfram Sang:
 "The changes for i2c-embedded include:

   - massive rework of the omap driver
   - massive rework of the at91 driver.  In fact, the old driver gets
     removed; I am okay with this approach since the old driver was
     depending on BROKEN and its limitations made it practically
     unusable, so people used bitbanging instead.  But even if there are
     users, there is no platform_data or module parameter which would
     need to be converted.  It is just another driver doing I2C
     transfers, just way better.  Modifications of arch/arm/at91 related
     files have proper acks from the maintainer.
   - new driver for R-Car I2C
   - devicetree and generic_clock conversions and fixes
   - usual driver fixes and changes.

  The rework patches have come a long way and lots of people have been
  involved in creating/testing them.  Most patches have been in
  linux-next at least since 3.6-rc5.  A few have been added in the last
  week, I have to admit.

  An unexpected (but welcome :)) peak in private life is the cause for
  that.  The "late" patches shouldn't cause any merge conflicts and I
  will have a special eye on them during the stabilization phase.  This
  is an exception and I want to have the patches in place properly in
  time again for the next kernels."

* 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux: (44 commits)
  MXS: Implement DMA support into mxs-i2c
  i2c: add Renesas R-Car I2C driver
  i2c: s3c2410: use clk_prepare_enable and clk_disable_unprepare
  ARM: OMAP: convert I2C driver to PM QoS for MPU latency constraints
  i2c: nomadik: Add Device Tree support to the Nomadik I2C driver
  i2c: algo: pca: Fix chip reset function for PCA9665
  i2c: mpc: Wait for STOP to hit the bus
  i2c: davinci: preparation for switch to common clock framework
  omap-i2c: fix incorrect log message when using a device tree
  i2c: omap: sanitize exit path
  i2c: omap: switch over to autosuspend API
  i2c: omap: remove unnecessary pm_runtime_suspended check
  i2c: omap: switch to threaded IRQ support
  i2c: omap: remove redundant status read
  i2c: omap: get rid of the "complete" label
  i2c: omap: resize fifos before each message
  i2c: omap: simplify IRQ exit path
  i2c: omap: always return IRQ_HANDLED
  i2c: omap: simplify errata check
  i2c: omap: bus: add a receiver flag
  ...
2012-10-11 10:27:51 +09:00
Linus Torvalds
da06a8d7be ARM: SoC fixes
A series of fixes (and in some cases, some cleanups):
 
 Via Tony Lindgren:
 - A collection of OMAP regression fixes, in particular because firmware
   no longer sets up all pin states before starting the kernel.
 - cpufreq fixes for OMAP (Rafael is on vacation and this was pre-agreed).
 - A longer series of misc regression fixes and cleanups, warning removals,
   etc for OMAP
 
 From Arnd Bergmann:
 - A series of warning fixes for various platforms (defconfig builds)
 
 Misc:
 - A couple of tegra fixes, one for i.MX, some vt8500 fixes, etc.
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Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A series of fixes (and in some cases, some cleanups):

  Via Tony Lindgren:
   - A collection of OMAP regression fixes, in particular because
     firmware no longer sets up all pin states before starting the
     kernel.
   - cpufreq fixes for OMAP (Rafael is on vacation and this was
     pre-agreed).
   - A longer series of misc regression fixes and cleanups, warning
     removals, etc for OMAP

  From Arnd Bergmann:
   - A series of warning fixes for various platforms (defconfig builds)

  Misc:
   - A couple of tegra fixes, one for i.MX, some vt8500 fixes, etc."

* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (73 commits)
  ARM: pxa: armcore: fix PCI PIO warnings
  ARM: integrator: use __iomem pointers for MMIO, part 2
  ARM: assabet: fix bogus warning in get_assabet_scr (again)
  ARM: shmobile: mark shmobile_init_late as __init
  ARM: integrator_cp: fix build failure
  ARM: OMAP4/AM335x: hwmod: fix disable_module regression in hardreset handling
  ARM: OMAP3: fix workaround for EMU clockdomain
  arm/omap: Replace board_ref_clock with enum values
  ARM: OMAP2+: remove duplicated include from board-omap3stalker.c
  arch/arm/plat-omap/omap-pm-noop.c: Remove unecessary semicolon
  arch/arm/mach-omap2: Remove unecessary semicolon
  arch/arm/mach-omap1/devices.c: Remove unecessary semicolon
  ARM/dts: omap5-evm: pinmux configuration for audio
  ARM/dts: Add pinctrl driver entries for omap5
  ARM/dts: omap4-panda: pinmux configuration for audio
  ARM/dts: omap4-sdp: pinmux configuration for audio
  ARM/dts: omap5-evm: Disable unused McBSP3
  ARM/dts: omap4-sdp: Disable unused McBSP3
  ARM/dts: omap4-panda: Disable unused audio IPs
  ARM: OMAP: board-omap4panda: Pin mux configuration for audio needs
  ...
2012-10-11 10:21:48 +09:00
Ian Kent
49999ab27e autofs4 - fix reset pending flag on mount fail
In autofs4_d_automount(), if a mount fail occurs the AUTOFS_INF_PENDING
mount pending flag is not cleared.

One effect of this is when using the "browse" option, directory entry
attributes show up with all "?"s due to the incorrect callback and
subsequent failure return (when in fact no callback should be made).

Signed-off-by: Ian Kent <ikent@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 10:21:16 +09:00
Linus Torvalds
14ffe009ca Merge branch 'akpm' (Fixups from Andrew)
Merge misc fixes from Andrew Morton:
 "Followups, fixes and some random stuff I found on the internet."

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (11 patches)
  perf: fix duplicate header inclusion
  memcg, kmem: fix build error when CONFIG_INET is disabled
  rtc: kconfig: fix RTC_INTF defaults connected to RTC_CLASS
  rapidio: fix comment
  lib/kasprintf.c: use kmalloc_track_caller() to get accurate traces for kvasprintf
  rapidio: update for destination ID allocation
  rapidio: update asynchronous discovery initialization
  rapidio: use msleep in discovery wait
  mm: compaction: fix bit ranges in {get,clear,set}_pageblock_skip()
  arch/powerpc/platforms/pseries/hotplug-memory.c: section removal cleanups
  arch/powerpc/platforms/pseries/hotplug-memory.c: fix section handling code
2012-10-11 10:14:16 +09:00
Linus Torvalds
ce40be7a82 Merge branch 'for-3.7/core' of git://git.kernel.dk/linux-block
Pull block IO update from Jens Axboe:
 "Core block IO bits for 3.7.  Not a huge round this time, it contains:

   - First series from Kent cleaning up and generalizing bio allocation
     and freeing.

   - WRITE_SAME support from Martin.

   - Mikulas patches to prevent O_DIRECT crashes when someone changes
     the block size of a device.

   - Make bio_split() work on data-less bio's (like trim/discards).

   - A few other minor fixups."

Fixed up silent semantic mis-merge as per Mikulas Patocka and Andrew
Morton.  It is due to the VM no longer using a prio-tree (see commit
6b2dbba8b6: "mm: replace vma prio_tree with an interval tree").

So make set_blocksize() use mapping_mapped() instead of open-coding the
internal VM knowledge that has changed.

* 'for-3.7/core' of git://git.kernel.dk/linux-block: (26 commits)
  block: makes bio_split support bio without data
  scatterlist: refactor the sg_nents
  scatterlist: add sg_nents
  fs: fix include/percpu-rwsem.h export error
  percpu-rw-semaphore: fix documentation typos
  fs/block_dev.c:1644:5: sparse: symbol 'blkdev_mmap' was not declared
  blockdev: turn a rw semaphore into a percpu rw semaphore
  Fix a crash when block device is read and block size is changed at the same time
  block: fix request_queue->flags initialization
  block: lift the initial queue bypass mode on blk_register_queue() instead of blk_init_allocated_queue()
  block: ioctl to zero block ranges
  block: Make blkdev_issue_zeroout use WRITE SAME
  block: Implement support for WRITE SAME
  block: Consolidate command flag and queue limit checks for merges
  block: Clean up special command handling logic
  block/blk-tag.c: Remove useless kfree
  block: remove the duplicated setting for congestion_threshold
  block: reject invalid queue attribute values
  block: Add bio_clone_bioset(), bio_clone_kmalloc()
  block: Consolidate bio_alloc_bioset(), bio_kmalloc()
  ...
2012-10-11 09:04:23 +09:00
Linus Torvalds
ba0a5a36f6 Fixes an old bug of the /dev/fw* ioctl ABI.
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Merge tag 'firewire-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394

Pull a firewire fix from Stefan Richter:
 "Fixes an old bug of the /dev/fw* ioctl ABI."

* tag 'firewire-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: cdev: fix user memory corruption (i386 userland on amd64 kernel)
2012-10-11 08:52:04 +09:00
Linus Torvalds
3dddebe059 vfio fixes for v3.7-rc1
This includes a fix for PCI BAR mmaps after recent mm changes, fixing an interrupt race, and fixing a consistency bug in interrupt state when switching interrupt modes.
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Merge tag 'vfio-for-v3.7-rc1' of git://github.com/awilliam/linux-vfio

Pull vfio fixes from Alex Williamson:
 "This includes a fix for PCI BAR mmaps after recent mm changes, fixing
  an interrupt race, and fixing a consistency bug in interrupt state
  when switching interrupt modes."

* tag 'vfio-for-v3.7-rc1' of git://github.com/awilliam/linux-vfio:
  vfio: Fix PCI INTx disable consistency
  vfio: Move PCI INTx eventfd setting earlier
  vfio: Fix PCI mmap after b3b9c293
2012-10-11 08:50:56 +09:00
Michel Lespinasse
ec073619cd perf: fix duplicate header inclusion
#include <stdbool.h> somehow got duplicated on its way to linus's tree
(probably as a conflict resolution as things got sent through multiple
trees)

Signed-off-by: Michel Lespinasse <walken@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 08:50:17 +09:00
David Rientjes
cd59085a9b memcg, kmem: fix build error when CONFIG_INET is disabled
Commit e1aab161e0 ("socket: initial cgroup code.") causes a build
error when CONFIG_INET is disabled in Linus' tree:

  net/built-in.o: In function `sk_update_clone':
  net/core/sock.c:1336: undefined reference to `sock_update_memcg'

sock_update_memcg() is only defined when CONFIG_INET is enabled, so fix
it by defining the dummy function without this option.

Signed-off-by: David Rientjes <rientjes@google.com>
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Glauber Costa <glommer@parallels.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 08:50:16 +09:00
Kevin Hilman
8dc0839510 rtc: kconfig: fix RTC_INTF defaults connected to RTC_CLASS
Commit 6b8029fab6 ("rtc: kconfig: remove unnecessary dependencies")
removed various 'depends on RTC_CLASS' dependencies but also removed a
few 'default RTC_CLASS' statements, which actually changed default
behavior.

This resulted in the various RTC interfaces (sysfs, proc, dev) all being
disabled by default, even when RTC_CLASS is enabled:

   # CONFIG_RTC_INTF_SYSFS is not set
   # CONFIG_RTC_INTF_PROC is not set
   # CONFIG_RTC_INTF_DEV is not set

which is different from previous behavior (all of these where enabled.)

To fix, add back the 'default RTC_CLASS' statments to each of the
RTC_INTF_* options.

I noticed this because some RTC tests started failing on my TI OMAP
platforms because /dev/rtc0 was not present anymore, even though the
driver was present and RTC_CLASS was enabled.

Signed-off-by: Kevin Hilman <khilman@ti.com>
Acked-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 08:50:16 +09:00
Chad Reese
fdb8d561e6 rapidio: fix comment
The resource index for the mailboxes was incorrect.

Signed-off-by: Chad Reese <kreese@caviumnetworks.com>
Acked-by: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 08:50:16 +09:00
Ezequiel Garcia
3e1aa66bd4 lib/kasprintf.c: use kmalloc_track_caller() to get accurate traces for kvasprintf
Previously kvasprintf() allocation was being done through kmalloc(),
thus producing an inaccurate trace report.

This is a common problem: in order to get accurate callsite tracing, a
lib/utils function shouldn't allocate kmalloc but instead use
kmalloc_track_caller.

Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 08:50:15 +09:00
Alexandre Bounine
4ed134beee rapidio: update for destination ID allocation
Address comments provided by Andrew Morton:
https://lkml.org/lkml/2012/10/3/550

 - Keeps consistent kerneldoc compatible comments style for new static
   functions.
 - Removes unnecessary complexity from destination ID allocation
   routine.
 - Uses kcalloc() for code clarity.

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 08:50:15 +09:00
Alexandre Bounine
2574740d1f rapidio: update asynchronous discovery initialization
Update discovery process initialization based on Andrew Morton's comments:
https://lkml.org/lkml/2012/10/3/552.

This update processes all enumerating mports first and schedules discovery
work after that. If the initialization routine fails to allocate resources
needed to execute discovery, it abandons discovery for all ports.

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 08:50:15 +09:00
Alexandre Bounine
f4c9c0e83b rapidio: use msleep in discovery wait
Use msleep() for code clarity as suggested by Andrew Morton in his
comments for the original patch: https://lkml.org/lkml/2012/10/3/546.

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 08:50:14 +09:00
Bartlomiej Zolnierkiewicz
627260595c mm: compaction: fix bit ranges in {get,clear,set}_pageblock_skip()
{get,clear,set}_pageblock_skip() use incorrect bit ranges (please compare
to bit ranges used by {get,set}_pageblock_flags() used for migration
types) and can overwrite pageblock migratetype of the next pageblock in
the bitmap.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 08:50:14 +09:00
Yasuaki Ishimatsu
1633dbbacb arch/powerpc/platforms/pseries/hotplug-memory.c: section removal cleanups
Followups to d760afd4d2 ("memory-hotplug: suppress "Trying to free
nonexistent resource <XXXXXXXXXXXXXXXX-YYYYYYYYYYYYYYYY>" warning").

 - use unsigned long type, as overflows are conceivable

 - rename `i' to the less-misleading and more informative `section'

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 08:50:14 +09:00
Andrew Morton
158544b165 arch/powerpc/platforms/pseries/hotplug-memory.c: fix section handling code
Fix

  arch/powerpc/platforms/pseries/hotplug-memory.c: In function 'pseries_remove_memblock':
  arch/powerpc/platforms/pseries/hotplug-memory.c:103:17: error: unused variable 'pfn' [-Werror=unused-variable]

Caused by commit d760afd4d2 ("memory-hotplug: suppress "Trying to free
nonexistent resource <XXXXXXXXXXXXXXXX-YYYYYYYYYYYYYYYY>" warning").

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 08:50:13 +09:00
Linus Torvalds
e626d177fc Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull hwmon updates from Jean Delvare:
 "Only trivial things this time"

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: Drop needless includes of <linux/delay.h>
  hwmon: Add missing inclusions of <linux/err.h>
  hwmon: Add missing inclusions of <linux/jiffies.h>
  hwmon: Fix spelling of Celsius
  hwmon: Update Alexey Fisher's name
2012-10-11 08:49:18 +09:00
Alex Williamson
899649b7d4 vfio: Fix PCI INTx disable consistency
The virq_disabled flag tracks the userspace view of INTx masking
across interrupt mode changes, but we're not consistently applying
this to the interrupt and masking handler notion of the device.
Currently if the user sets DisINTx while in MSI or MSIX mode, then
returns to INTx mode (ex. rebooting a qemu guest), the hardware has
DisINTx+, but the management of INTx thinks it's enabled, making it
impossible to actually clear DisINTx.  Fix this by updating the
handler state when INTx is re-enabled.

Cc: stable@vger.kernel.org
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2012-10-10 09:10:32 -06:00
Alex Williamson
9dbdfd23b7 vfio: Move PCI INTx eventfd setting earlier
We need to be ready to recieve an interrupt as soon as we call
request_irq, so our eventfd context setting needs to be moved
earlier.  Without this, an interrupt from our device or one
sharing the interrupt line can pass a NULL into eventfd_signal
and oops.

Cc: stable@vger.kernel.org
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2012-10-10 09:10:32 -06:00
Alex Williamson
34002f54d2 vfio: Fix PCI mmap after b3b9c293
Our mmap path mistakely relied on vma->vm_pgoff to get set in
remap_pfn_range.  After b3b9c293, that path only applies to
copy-on-write mappings.  Set it in our own code.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2012-10-10 09:10:31 -06:00
Linus Torvalds
df632d3ce7 NFS client updates for Linux 3.7
Features include:
 
 - Remove CONFIG_EXPERIMENTAL dependency from NFSv4.1
   Aside from the issues discussed at the LKS, distros are shipping
   NFSv4.1 with all the trimmings.
 - Fix fdatasync()/fsync() for the corner case of a server reboot.
 - NFSv4 OPEN access fix: finally distinguish correctly between
   open-for-read and open-for-execute permissions in all situations.
 - Ensure that the TCP socket is closed when we're in CLOSE_WAIT
 - More idmapper bugfixes
 - Lots of pNFS bugfixes and cleanups to remove unnecessary state and
   make the code easier to read.
 - In cases where a pNFS read or write fails, allow the client to
   resume trying layoutgets after two minutes of read/write-through-mds.
 - More net namespace fixes to the NFSv4 callback code.
 - More net namespace fixes to the NFSv3 locking code.
 - More NFSv4 migration preparatory patches.
   Including patches to detect network trunking in both NFSv4 and NFSv4.1
 - pNFS block updates to optimise LAYOUTGET calls.
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Merge tag 'nfs-for-3.7-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client updates from Trond Myklebust:
 "Features include:

   - Remove CONFIG_EXPERIMENTAL dependency from NFSv4.1
     Aside from the issues discussed at the LKS, distros are shipping
     NFSv4.1 with all the trimmings.
   - Fix fdatasync()/fsync() for the corner case of a server reboot.
   - NFSv4 OPEN access fix: finally distinguish correctly between
     open-for-read and open-for-execute permissions in all situations.
   - Ensure that the TCP socket is closed when we're in CLOSE_WAIT
   - More idmapper bugfixes
   - Lots of pNFS bugfixes and cleanups to remove unnecessary state and
     make the code easier to read.
   - In cases where a pNFS read or write fails, allow the client to
     resume trying layoutgets after two minutes of read/write-
     through-mds.
   - More net namespace fixes to the NFSv4 callback code.
   - More net namespace fixes to the NFSv3 locking code.
   - More NFSv4 migration preparatory patches.
     Including patches to detect network trunking in both NFSv4 and
     NFSv4.1
   - pNFS block updates to optimise LAYOUTGET calls."

* tag 'nfs-for-3.7-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (113 commits)
  pnfsblock: cleanup nfs4_blkdev_get
  NFS41: send real read size in layoutget
  NFS41: send real write size in layoutget
  NFS: track direct IO left bytes
  NFSv4.1: Cleanup ugliness in pnfs_layoutgets_blocked()
  NFSv4.1: Ensure that the layout sequence id stays 'close' to the current
  NFSv4.1: Deal with seqid wraparound in the pNFS return-on-close code
  NFSv4 set open access operation call flag in nfs4_init_opendata_res
  NFSv4.1: Remove the dependency on CONFIG_EXPERIMENTAL
  NFSv4 reduce attribute requests for open reclaim
  NFSv4: nfs4_open_done first must check that GETATTR decoded a file type
  NFSv4.1: Deal with wraparound when updating the layout "barrier" seqid
  NFSv4.1: Deal with wraparound issues when updating the layout stateid
  NFSv4.1: Always set the layout stateid if this is the first layoutget
  NFSv4.1: Fix another refcount issue in pnfs_find_alloc_layout
  NFSv4: don't put ACCESS in OPEN compound if O_EXCL
  NFSv4: don't check MAY_WRITE access bit in OPEN
  NFS: Set key construction data for the legacy upcall
  NFSv4.1: don't do two EXCHANGE_IDs on mount
  NFS: nfs41_walk_client_list(): re-lock before iterating
  ...
2012-10-10 23:52:35 +09:00
Jean Delvare
0657777fce hwmon: Drop needless includes of <linux/delay.h>
These drivers use no sleep or delay functions so they don't need to
include <linux/delay.h>.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Cc: Rudolf Marek <r.marek@assembler.cz>
2012-10-10 15:25:57 +02:00
Jean Delvare
fa845740cb hwmon: Add missing inclusions of <linux/err.h>
These drivers use IS_ERR so they should include <linux/err.h>.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Luca Tettamanti <kronos.it@gmail.com>
Cc: Henrik Rydberg <rydberg@euromail.se>
2012-10-10 15:25:56 +02:00
Jean Delvare
dcd8f39230 hwmon: Add missing inclusions of <linux/jiffies.h>
Many hwmon drivers use jiffies but omit the inclusion of the header
file. Fix that, and also fix one driver which was including the header
file but didn't need it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Luca Tettamanti <kronos.it@gmail.com>
Cc: Marc Hulsman <m.hulsman@tudelft.nl>
Cc: Rudolf Marek <r.marek@assembler.cz>
2012-10-10 15:25:56 +02:00
Peter Meerwald
4d7e47bc83 hwmon: Fix spelling of Celsius
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-10-10 15:25:56 +02:00
Oleksij Rempel
9292f05556 hwmon: Update Alexey Fisher's name
My name was change after migration.

Signed-off-by: Oleksij Rempel <bug-track@fisher-privat.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-10-10 15:25:56 +02:00
Linus Torvalds
2474542f64 pwm: Changes for v3.7-rc1
All legacy PWM providers have now been moved to the PWM subsystem. The
 plan for 3.8 is to adapt all board files to provide a lookup table for
 PWM devices in order to get rid of the global namespace. Subsequently,
 users of the legacy pwm_request() and pwm_free() functions can be
 migrated to the new pwm_get() and pwm_put() functions. Once this has
 been completed, the legacy API and the compatibility code in the core
 can be removed.
 
 In addition to the above, these changes also add support for configuring
 the polarity of a PWM signal (currently only supported on ECAP and
 EHRPWM) and include a much needed rework of the i.MX driver. Managed
 functions to obtain and release a PWM device (devm_pwm_get() and
 devm_pwm_put()) have been added and the pwm-backlight driver has been
 updated to use them. If the PWM subsystem hasn't been enabled, dummy
 functions are provided that allow the subsystem to safely compile out.
 
 Some common checks on input parameters have been moved to the core and
 removed from the drivers. Finally, a small fix corrects the description
 of the PWM specifier's second cell in the device tree representation.
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Merge tag 'for-3.7-rc1' of git://gitorious.org/linux-pwm/linux-pwm

Pull pwm changes from Thierry Reding:
 "All legacy PWM providers have now been moved to the PWM subsystem.
  The plan for 3.8 is to adapt all board files to provide a lookup table
  for PWM devices in order to get rid of the global namespace.
  Subsequently, users of the legacy pwm_request() and pwm_free()
  functions can be migrated to the new pwm_get() and pwm_put()
  functions.  Once this has been completed, the legacy API and the
  compatibility code in the core can be removed.

  In addition to the above, these changes also add support for
  configuring the polarity of a PWM signal (currently only supported on
  ECAP and EHRPWM) and include a much needed rework of the i.MX driver.
  Managed functions to obtain and release a PWM device (devm_pwm_get()
  and devm_pwm_put()) have been added and the pwm-backlight driver has
  been updated to use them.  If the PWM subsystem hasn't been enabled,
  dummy functions are provided that allow the subsystem to safely
  compile out.

  Some common checks on input parameters have been moved to the core and
  removed from the drivers.  Finally, a small fix corrects the
  description of the PWM specifier's second cell in the device tree
  representation."

* tag 'for-3.7-rc1' of git://gitorious.org/linux-pwm/linux-pwm: (23 commits)
  pwm: dt: Fix description of second PWM cell
  pwm: Check for negative duty-cycle and period
  pwm: Add Ingenic JZ4740 support
  MIPS: JZ4740: Export timer API
  pwm: Move PUV3 PWM driver to PWM framework
  unicore32: pwm: Use managed resource allocations
  unicore32: pwm: Remove unnecessary indirection
  unicore32: pwm: Use module_platform_driver()
  unicore32: pwm: Properly remap memory-mapped registers
  pwm-backlight: Use devm_pwm_get() instead of pwm_get()
  pwm: Move AB8500 PWM driver to PWM framework
  pwm: Fix compilation error when CONFIG_PWM is not defined
  pwm: i.MX: fix clock lookup
  pwm: i.MX: use per clock unconditionally
  pwm: i.MX: add devicetree support
  pwm: i.MX: Use module_platform_driver
  pwm: i.MX: add functions to enable/disable pwm.
  pwm: i.MX: remove unnecessary if in pwm_[en|dis]able
  pwm: i.MX: factor out SoC specific functions
  pwm: pwm-tiehrpwm: Add support for configuring polarity of PWM
  ...
2012-10-10 20:15:24 +09:00
Linus Torvalds
c7a6ced9d8 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED subsystem update from Bryan Wu.

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: (24 commits)
  leds: add output driver configuration for pca9633 led driver
  leds: lm3642: Use regmap_update_bits() in lm3642_chip_init()
  leds: Add new LED driver for lm3642 chips
  leds-lp5523: Fix riskiness of the page fault
  leds-lp5523: turn off the LED engines on unloading the driver
  leds-lm3530: Fix smatch warnings
  leds-lm3530: Use devm_regulator_get function
  leds: leds-gpio: adopt pinctrl support
  leds: Add new LED driver for lm355x chips
  leds-lp5523: use the i2c device id rather than fixed name
  leds-lp5523: add new device id for LP55231
  leds-lp5523: support new LP55231 device
  leds: triggers: send uevent when changing triggers
  leds-lp5523: minor code style fixes
  leds-lp5523: change the return type of lp5523_set_mode()
  leds-lp5523: set the brightness to 0 forcely on removing the driver
  leds-lp5523: add channel name in the platform data
  leds: leds-gpio: Use of_get_child_count() helper
  leds: leds-gpio: Use platform_{get,set}_drvdata
  leds: leds-gpio: use of_match_ptr()
  ...
2012-10-10 20:14:07 +09:00
Linus Torvalds
a188e7e93a Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull scsi target updates from Nicholas Bellinger:
 "Things have been calm for the most part with no new fabric drivers in
  flight for v3.7 (we're up to eight now !), so this update is primarily
  focused on addressing a few long-standing items within target-core and
  iscsi-target fabric code.

  The highlights include:

   - target: Simplify fabric sense data length handling (roland)
   - qla2xxx: Fix endianness of task management response code (roland)
   - target: fix truncation of mode data, support zero allocation length
     (paolo)
   - target: Properly support zero-length commands in normal processing
     path (paolo)
   - iscsi-target: Correctly set 0xffffffff field within ISCSI_OP_REJECT
     PDU (ronnie + nab)
   - iscsi-target: Add explicit set of cache_dynamic_acls=1 for TPG
     demo-mode (ronnie + nab)
   - target/file: Re-enable optional fd_buffered_io=1 operation (nab +
     hch)
   - iscsi-target: Add MaxXmitDataSegmenthLength forr target ->
     initiator MDRSL declaration (nab)
   - target: Add target_submit_cmd_map_sgls for SGL fabric memory
     passthrough (nab + hch)
   - tcm_loop: Convert I/O path to use target_submit_cmd_map_sgls (hch +
     nab)
   - tcm_vhost: Convert I/O path to use target_submit_cmd_map_sgls (nab
     + hch)

  The last series for adding a new target_submit_cmd_map_sgls() fabric
  caller (as requested by hch) that accepts pre-allocated SGL memory
  (using existing logic), along with converting tcm_loop + tcm_vhost has
  only been in -next for the last days, but has gotten enough review
  +testing and is clear enough a mechanical change that I think it's
  reasonable to merge for -rc1 code.

  Thanks again to everyone who contributed this round! Extra special
  thanks to Roland (PureStorage) for tracking down the qla2xxx target
  TMR response code endian issue, and to Paolo (Redhat) for resolving
  the long standing zero-length CDB issues within target-core between
  virtual and pSCSI backends."

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (44 commits)
  iscsi-target: Bump defaults for nopin_timeout + nopin_response_timeout values
  iscsit: proper endianess conversions
  iscsit: use the itt_t abstract type
  iscsit: add missing endianess conversion in iscsit_check_inaddr_any
  iscsit: remove incorrect unlock in iscsit_build_sendtargets_resp
  iscsit: mark various functions static
  target/iscsi: precedence bug in iscsit_set_dataout_sequence_values()
  target/usb-gadget: strlen() doesn't count the terminator
  target/usb-gadget: remove duplicate initialization
  tcm_vhost: Convert I/O path to use target_submit_cmd_map_sgls
  target: Add control CDB READ payload zero work-around
  tcm_loop: Convert I/O path to use target_submit_cmd_map_sgls
  target: Add target_submit_cmd_map_sgls for SGL fabric memory passthrough
  iscsi-target: Add explicit set of cache_dynamic_acls=1 for TPG demo-mode
  iscsi-target: Change iscsi_target_seq_pdu_list.c to honor MaxXmitDataSegmentLength
  iscsi-target: Add MaxXmitDataSegmentLength connection recovery check
  iscsi-target: Convert incoming PDU payload checks to MaxXmitDataSegmentLength
  iscsi-target: Enable MaxXmitDataSegmentLength operation in login path
  iscsi-target: Add base MaxXmitDataSegmentLength code
  target/file: Re-enable optional fd_buffered_io=1 operation
  ...
2012-10-10 19:52:19 +09:00
Linus Torvalds
e1b28147f6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull second s390 update from Martin Schwidefsky:
 "The big thing in this pull request is the UAPI patch from David, and
  worth mentioning is the page table dumper.  The rest are small
  improvements and bug fixes."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/entry: fix svc number for TIF_SYSCALL system call restart
  s390/mm,vmem: fix vmem_add_mem()/vmem_remove_range()
  s390/vmalloc: have separate modules area
  s390/zcrypt: remove duplicated include from zcrypt_pcixcc.c
  s390/css_chars: remove superfluous ifdef
  s390/chsc: make headers usable
  s390/mm: let kernel text section always begin at 1MB
  s390/mm: fix mapping of read-only kernel text section
  s390/mm: add page table dumper
  s390: add support to start the kernel in 64 bit mode.
  s390/mm,pageattr: remove superfluous EXPORT_SYMBOLs
  s390/mm,pageattr: add more page table walk sanity checks
  s390/mm: fix pmd_huge() usage for kernel mapping
  s390/dcssblk: cleanup device attribute usage
  s390/mm: use pfmf instruction to initialize storage keys
  s390/facilities: cleanup PFMF and HPAGE machine facility detection
  UAPI: (Scripted) Disintegrate arch/s390/include/asm
2012-10-10 19:48:33 +09:00