Commit Graph

299529 Commits

Author SHA1 Message Date
Linus Torvalds 668ce0ac70 Merge branch 'systemh-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
Pull system.h fixups for less common arch's from Paul Gortmaker:
 "Here is what is hopefully the last of the system.h related fixups.

  The fixes for Alpha and ia64 are code relocations consistent with what
  was done for the more mainstream architectures.  Note that the
  diffstat lines removed vs lines added are not the same since I've
  fixed some of the whitespace issues in the relocated code blocks.
  However they are functionally the same.  Compile tested locally, plus
  these two have been in linux-next for a while.

  There is also a trivial one line system.h related fix for the Tilera
  arch from Chris Metcalf to fix an implict include.."

* 'systemh-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
  irq_work: fix compile failure on tile from missing include
  ia64: populate the cmpxchg header with appropriate code
  alpha: fix build failures from system.h dismemberment
2012-04-13 19:44:36 -07:00
Linus Torvalds a1c0cad352 fbdev fixes for 3.4
It includes:
 - a compile fix for au1*fb
 - a fix to make kyrofb usable on x86_64
 - a fix for uvesafb to prevent an oops due to NX-protection
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Merge tag 'fbdev-fixes-for-3.4-1' of git://github.com/schandinat/linux-2.6

Pull fbdev fixes from Florian Tobias Schandinat:
 - a compile fix for au1*fb
 - a fix to make kyrofb usable on x86_64
 - a fix for uvesafb to prevent an oops due to NX-protection

 "The fix for kyrofb is a bit large but it's just replacing "unsigned
  long" by "u32" for 64 bit compatibility."

* tag 'fbdev-fixes-for-3.4-1' of git://github.com/schandinat/linux-2.6:
  video:uvesafb: Fix oops that uvesafb try to execute NX-protected page
  fbdev: fix au1*fb builds
  kyrofb: fix on x86_64
2012-04-13 19:42:56 -07:00
Linus Torvalds 659e45d8a0 Merge branch 'for-linus-min' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull the minimal btrfs branch from Chris Mason:
 "We have a use-after-free in there, along with errors when mount -o
  discard is enabled, and a BUG_ON(we should compile with UP more
  often)."

* 'for-linus-min' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: use commit root when loading free space cache
  Btrfs: fix use-after-free in __btrfs_end_transaction
  Btrfs: check return value of bio_alloc() properly
  Btrfs: remove lock assert from get_restripe_target()
  Btrfs: fix eof while discarding extents
  Btrfs: fix uninit variable in repair_eb_io_failure
  Revert "Btrfs: increase the global block reserve estimates"
2012-04-13 19:41:27 -07:00
Linus Torvalds c104f1fa1e Merge branch 'for-3.4/drivers' of git://git.kernel.dk/linux-block
Pull block driver bits from Jens Axboe:

 - A series of fixes for mtip32xx.  Most from Asai at Micron, but also
   one from Greg, getting rid of the dependency on PCIE_HOTPLUG.

 - A few bug fixes for xen-blkfront, and blkback.

 - A virtio-blk fix for Vivek, making resize actually work.

 - Two fixes from Stephen, making larger transfers possible on cciss.
   This is needed for tape drive support.

* 'for-3.4/drivers' of git://git.kernel.dk/linux-block:
  block: mtip32xx: remove HOTPLUG_PCI_PCIE dependancy
  mtip32xx: dump tagmap on failure
  mtip32xx: fix handling of commands in various scenarios
  mtip32xx: Shorten macro names
  mtip32xx: misc changes
  mtip32xx: Add new sysfs entry 'status'
  mtip32xx: make setting comp_time as common
  mtip32xx: Add new bitwise flag 'dd_flag'
  mtip32xx: fix error handling in mtip_init()
  virtio-blk: Call revalidate_disk() upon online disk resize
  xen/blkback: Make optional features be really optional.
  xen/blkback: Squash the discard support for 'file' and 'phy' type.
  mtip32xx: fix incorrect value set for drv_cleanup_done, and re-initialize and start port in mtip_restart_port()
  cciss: Fix scsi tape io with more than 255 scatter gather elements
  cciss: Initialize scsi host max_sectors for tape drive support
  xen-blkfront: make blkif_io_lock spinlock per-device
  xen/blkfront: don't put bdev right after getting it
  xen-blkfront: use bitmap_set() and bitmap_clear()
  xen/blkback: Enable blkback on HVM guests
  xen/blkback: use grant-table.c hypercall wrappers
2012-04-13 18:45:13 -07:00
Linus Torvalds d8dd0b6d48 Merge branch 'for-3.4/core' of git://git.kernel.dk/linux-block
Pull block core bits from Jens Axboe:
 "It's a nice and quiet round this time, since most of the tricky stuff
  has been pushed to 3.5 to give it more time to mature.  After a few
  hectic block IO core changes for 3.3 and 3.2, I'm quite happy with a
  slow round.

  Really minor stuff in here, the only real functional change is making
  the auto-unplug threshold a per-queue entity.  The threshold is set so
  that it's low enough that we don't hold off IO for too long, but still
  big enough to get a nice benefit from the batched insert (and hence
  queue lock cost reduction).  For raid configurations, this currently
  breaks down."

* 'for-3.4/core' of git://git.kernel.dk/linux-block:
  block: make auto block plug flush threshold per-disk based
  Documentation: Add sysfs ABI change for cfq's target latency.
  block: Make cfq_target_latency tunable through sysfs.
  block: use lockdep_assert_held for queue locking
  block: blk_alloc_queue_node(): use caller's GFP flags instead of GFP_KERNEL
2012-04-13 18:07:19 -07:00
Kevin Hilman 2d59dcfb54 cpufreq: OMAP: fix build errors: depends on ARCH_OMAP2PLUS
The OMAP driver needs a 'depends on ARCH_OMAP2PLUS' since it only
builds for OMAP2+ platforms.

This 'depends on' was in the original patch from Russell King, but was
erroneously removed by me when making this option user-selectable in
commit b09db45c (cpufreq: OMAP driver depends CPUfreq tables.)  This
patch remedies that.

Apologies to Russell King for breaking his originally working patch.

Also, thanks to Grazvydas Ignotas for reporting the same problem.

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-13 17:57:40 -07:00
Tony Lindgren 907025e3ba A few OMAP hwmod fixes against v3.4-rc2. One of them is a reversion
of a previous v3.4-rc patch that caused some regressions, and upon
 further review, appears not to be necessary.  The other two are fairly
 minor.
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Merge tag 'omap-fixes-b-for-3.4rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes

A few OMAP hwmod fixes against v3.4-rc2.  One of them is a reversion
of a previous v3.4-rc patch that caused some regressions, and upon
further review, appears not to be necessary.  The other two are fairly
minor.
2012-04-13 14:30:59 -07:00
Linus Torvalds 7d93101fc7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Eliminate obsolete __handle_softirq() function
  sparc64: Fix bootup crash on sun4v.
2012-04-13 12:41:21 -07:00
Linus Torvalds 6e1173399d hwmon patches for 3.4-rc3
Fix build warnings in four drivers
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon patches from Guenter Roeck:
 "Fix build warnings in four drivers"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (pmbus_core) Fix compiler warning
  hwmon: (smsc47m1) Fix compiler warning
  hwmon: (acpi_power_meter) Fix compiler warning seen in some configurations
  hwmon: (smsc47b397) Fix compiler warning
2012-04-13 12:19:41 -07:00
Linus Torvalds 461c14917e GPIO bug fixes on top of v3.4-rc2
Miscellaneous bug fixes to GPIO drivers and for a corner case in the
 gpio device tree parsing code.
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Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull GPIO bug fixes from Grant Likely:
 "Miscellaneous bug fixes to GPIO drivers and for a corner case in the
  gpio device tree parsing code."

* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  gpio/exynos: Fix compiler warning in gpio-samsung.c file
  gpio: Fix range check in of_gpio_simple_xlate()
  gpio: Fix uninitialized variable bit in adp5588_irq_handler
  gpio/sodaville: Convert sodaville driver to new irqdomain API
2012-04-13 12:18:20 -07:00
Linus Torvalds cf7d8a5550 SPI bug fixes on top of v3.4-rc2
Miscellaneous driver bug fixes.  No major changes in this branch.
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Merge tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull SPI bug fixes from Grant Likely:
 "Miscellaneous driver bug fixes.  No major changes in this branch."

* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  spi/imx: prevent NULL pointer dereference in spi_imx_probe()
  spi/imx: mark base member in spi_imx_data as __iomem
  spi/mpc83xx: fix NULL pdata dereference bug
  spi/davinci: Fix DMA API usage in davinci
  spi/pL022: include types.h to remove compilation warnings
2012-04-13 12:17:45 -07:00
Paul E. McKenney 3d3eeb2ef2 sparc64: Eliminate obsolete __handle_softirq() function
The invocation of softirq is now handled by irq_exit(), so there is no
need for sparc64 to invoke it on the trap-return path.  In fact, doing so
is a bug because if the trap occurred in the idle loop, this invocation
can result in lockdep-RCU failures.  The problem is that RCU ignores idle
CPUs, and the sparc64 trap-return path to the softirq handlers fails to
tell RCU that the CPU must be considered non-idle while those handlers
are executing.  This means that RCU is ignoring any RCU read-side critical
sections in those handlers, which in turn means that RCU-protected data
can be yanked out from under those read-side critical sections.

The shiny new lockdep-RCU ability to detect RCU read-side critical sections
that RCU is ignoring located this problem.

The fix is straightforward: Make sparc64 stop manually invoking the
softirq handlers.

Reported-by: Meelis Roos <mroos@linux.ee>
Suggested-by: David Miller <davem@davemloft.net>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Meelis Roos <mroos@linux.ee>
Cc: stable@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-13 11:58:38 -07:00
David S. Miller 9e0daff30f sparc64: Fix bootup crash on sun4v.
The DS driver registers as a subsys_initcall() but this can be too
early, in particular this risks registering before we've had a chance
to allocate and setup module_kset in kernel/params.c which is
performed also as a subsyts_initcall().

Register DS using device_initcall() insteal.

Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: stable@vger.kernel.org
2012-04-13 11:56:22 -07:00
Al Viro e847469bf7 lockd: fix the endianness bug
comparing be32 values for < is not doing the right thing...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-13 13:50:52 -04:00
David Brown af33eadc73 ARM: msm: Fix section mismatches in proc_comm.c
The change
    commit 4416e9eb0b
    Author: Gregory Bean <gbean@codeaurora.org>
    Date:   Wed Jul 28 10:22:12 2010 -0700

        arm: msm: Fix section mismatch in smd.c.

fixes a section mismatch between the board file and the smd driver's
probe function, however, it misses the additional mismatches between
the probe function and some routines it calls.  Fix these up as well.

Signed-off-by: David Brown <davidb@codeaurora.org>
2012-04-13 10:23:17 -07:00
David Brown e89c0e4377 video: msm: Fix section mismatches in mddi.c
The change
    commit 461cbe77d0
    Author: Gregory Bean <gbean@codeaurora.org>
    Date:   Wed Jul 28 10:22:13 2010 -0700

        video: msm: Fix section mismatch in mddi.c.

fixes a section mismatch between the board file and the driver's probe
function, however, it misses the additional mismatches between the
probe function and some routines it calls.  Fix these up as well.

Signed-off-by: David Brown <davidb@codeaurora.org>
2012-04-13 10:23:17 -07:00
Daniel Walker 204241c27c arm: msm: trout: fix compile failure
Fixes the following warnings,

arch/arm/mach-msm/board-trout.c: In function 'trout_init':
arch/arm/mach-msm/board-trout.c:71: error: 'system_rev' undeclared (first use in this function)
arch/arm/mach-msm/board-trout.c:71: error: (Each undeclared identifier is reported only once
arch/arm/mach-msm/board-trout.c:71: error: for each function it appears in.)

and

arch/arm/mach-msm/board-trout-panel.c: In function 'trout_init_panel':
arch/arm/mach-msm/board-trout-panel.c:267: error: 'system_rev' undeclared (first use in this function)
arch/arm/mach-msm/board-trout-panel.c:267: error: (Each undeclared identifier is reported only once
arch/arm/mach-msm/board-trout-panel.c:267: error: for each function it appears in.)

This came in with the following commit 9f97da78bf
which removes asm/system.h

Signed-off-by: Daniel Walker <dwalker@fifo99.com>
cc: David Howells <dhowells@redhat.com>
cc: Bryan Huntsman <bryanh@codeaurora.org>
cc: linux-arm-msm@vger.kernel.org
cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: David Brown <davidb@codeaurora.org>
2012-04-13 10:23:16 -07:00
Daniel Walker 1c07ae43bb arm: msm: halibut: remove unneeded fixup
This old fixup causes a build failure, so I remove it just like in
trout.

Signed-off-by: Daniel Walker <dwalker@fifo99.com>
Signed-off-by: David Brown <davidb@codeaurora.org>
2012-04-13 10:23:16 -07:00
Chris Metcalf ef1f098254 irq_work: fix compile failure on tile from missing include
Building with IRQ_WORK configured results in

kernel/irq_work.c: In function ‘irq_work_run’:
kernel/irq_work.c:110: error: implicit declaration of function ‘irqs_disabled’

The appropriate header just needs to be included.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-13 13:15:16 -04:00
Paul Gortmaker 85f8f7759e ia64: populate the cmpxchg header with appropriate code
commit 93f378883c

    "Fix ia64 build errors (fallout from system.h disintegration)"

introduced arch/ia64/include/asm/cmpxchg.h as a temporary
build fix and stated:

    "... leave the migration of xchg() and cmpxchg() to this new
     header file for a future patch."

Migrate the appropriate chunks from asm/intrinsics.h and fix
the whitespace issues in the migrated chunk.

Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-13 13:15:16 -04:00
Paul Gortmaker 5ba840f9da alpha: fix build failures from system.h dismemberment
commit ec2212088c

    "Disintegrate asm/system.h for Alpha"

combined with commit b4816afa39

    "Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h"

introduced the concept of asm/cmpxchg.h but the alpha arch
never got one.  Fork the cmpxchg content out of the asm/atomic.h
file to create one.

Some minor whitespace fixups were done on the block of code that
created the new file.

Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-13 13:15:16 -04:00
Al Viro 72094e43e3 ocfs2: ->e_leaf_clusters endianness breakage
le16, not le32...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-13 12:31:43 -04:00
Al Viro 28748b325d ocfs2: ->rl_count endianness breakage
le16, not le32...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-13 12:31:41 -04:00
Al Viro e1bf4cc620 ocfs: ->rl_used breakage on big-endian
it's le16, not le32 or le64...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-13 12:31:38 -04:00
Al Viro 3a251f04fe ocfs2: ->l_next_free_req breakage on big-endian
It's le16, not le32...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-13 12:31:37 -04:00
Al Viro 6ed3cf2cdf btrfs: btrfs_root_readonly() broken on big-endian
->root_flags is __le64 and all accesses to it go through the helpers
that do proper conversions.  Except for btrfs_root_readonly(), which
checks bit 0 as in host-endian...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-13 11:54:32 -04:00
Sachin Prabhu bfa890a3cd Fix number parsing in cifs_parse_mount_options
The function kstrtoul() used to parse number strings in the mount
option parser is set to expect a base 10 number . This treats the octal
numbers passed for mount options such as file_mode as base10 numbers
leading to incorrect behavior.

Change the 'base' argument passed to kstrtoul from 10 to 0 to
allow it to auto-detect the base of the number passed.

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Acked-by: Jeff Layton <jlayton@samba.org>
Reported-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-04-13 10:03:29 -05:00
Al Viro af1584f570 ext4: fix endianness breakage in ext4_split_extent_at()
->ee_len is __le16, so assigning cpu_to_le32() to it is going to do
Bad Things(tm) on big-endian hosts...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-13 10:12:08 -04:00
Al Viro efe39651f0 nfsd: fix compose_entry_fh() failure exits
Restore the original logics ("fail on mountpoints, negatives and in
case of fh_compose() failures").  Since commit 8177e (nfsd: clean up
readdirplus encoding) that got broken -
	rv = fh_compose(fhp, exp, dchild, &cd->fh);
	if (rv)
	       goto out;
	if (!dchild->d_inode)
		goto out;
	rv = 0;
out:
is equivalent to
	rv = fh_compose(fhp, exp, dchild, &cd->fh);
out:
and the second check has no effect whatsoever...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-13 10:12:02 -04:00
Al Viro afcf6792af nfsd: fix error value on allocation failure in nfsd4_decode_test_stateid()
PTR_ERR(NULL) is going to be 0...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-13 10:12:01 -04:00
Al Viro 02f5fde5df nfsd: fix endianness breakage in TEST_STATEID handling
->ts_id_status gets nfs errno, i.e. it's already big-endian; no need
to apply htonl() to it.  Broken by commit 174568 (NFSD: Added TEST_STATEID
operation) last year...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-13 10:12:01 -04:00
Al Viro 04da6e9d63 nfsd: fix error values returned by nfsd4_lockt() when nfsd_open() fails
nfsd_open() already returns an NFS error value; only vfs_test_lock()
result needs to be fed through nfserrno().  Broken by commit 55ef12
(nfsd: Ensure nfsv4 calls the underlying filesystem on LOCKT)
three years ago...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-13 10:12:01 -04:00
Al Viro 96f6f98501 nfsd: fix b0rken error value for setattr on read-only mount
..._want_write() returns -EROFS on failure, _not_ an NFS error value.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-13 10:12:00 -04:00
Will Deacon 6b8e5c912f ARM: 7383/1: nommu: populate vectors page from paging_init
Commit 94e5a85b ("ARM: earlier initialization of vectors page") made it
the responsibility of paging_init to initialise the vectors page.

This patch adds a call to early_trap_init for the !CONFIG_MMU case,
placing the vectors at CONFIG_VECTORS_BASE.

Cc: Jonathan Austin <jonathan.austin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-04-13 14:05:42 +01:00
Will Deacon 9b7333a9c1 ARM: 7381/1: nommu: fix typo in mm/Kconfig
The description for the CPU_HIGH_VECTOR Kconfig option for nommu builds
doesn't make any sense.

This patch fixes up the trivial grammatical error.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-04-13 14:05:41 +01:00
Marc Zyngier a106b21a35 ARM: 7380/1: DT: do not add a zero-sized memory property
Some bootloaders are broken enough to expose an ATAG_MEM with
a null size. Converting such tag to a memory node leads to
an unbootable system.

Skip over zero sized ATAG_MEM to avoid this situation.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-04-13 14:05:41 +01:00
Marc Zyngier 9c5fd9e85f ARM: 7379/1: DT: fix atags_to_fdt() second call site
atags_to_fdt() returns 1 when it fails to find a valid FDT signature.
The CONFIG_ARM_ATAG_DTB_COMPAT code is supposed to retry with another
location, but only does so when the initial call doesn't fail.

Fix this by using the correct condition in the assembly code.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-04-13 14:05:41 +01:00
Mark Brown 1e45860f54 ARM: 7366/3: amba: Remove AMBA level regulator support
The AMBA bus regulator support is being used to model on/off switches
for power domains which isn't terribly idiomatic for modern kernels with
the generic power domain code and creates integration problems on platforms
which don't use regulators for their power domains as it's hard to tell
the difference between a regulator that is needed but failed to be provided
and one that isn't supposed to be there (though DT does make that easier).

Platforms that wish to use the regulator API to manage their power domains
can indirect via the power domain interface.

This feature is only used with the vape supply of the db8500 PRCMU
driver which supplies the UARTs and MMC controllers, none of which have
support for managing vcore at runtime in mainline (only pl022 SPI
controller does).  Update that supply to have an always_on constraint
until the power domain support for the system is updated so that it is
enabled for these users, this is likely to have no impact on practical
systems as probably at least one of these devices will be active and
cause AMBA to hold the supply on anyway.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-04-13 14:04:08 +01:00
Archit Taneja 1f5e6247ca ARM: OMAP2/3: VENC hwmods: Remove OCPIF_SWSUP_IDLE flag from VENC slave interface
The clocks for all DSS slave interfaces were recently changed to "dss_ick" on
OMAP2 and OMAP3, this clock can be autoidled by PRCM. The VENC interface
previously had "dss_54m_fck" as it's clock which couldn't be autoidled, and
hence the OCPIF_SWSUP_IDLE flag was needed.

Remove the OCPIF_SWSUP_IDLE flag from VENC interfaces as it's clock is
now "dss_ick".  This allows the PRCM hardware to autoidle the VENC
interface clocks when they are not active, rather than relying on the
software to do it, which can keep the interface clocks active
unnecessarily.

Signed-off-by: Archit Taneja <archit@ti.com>
[paul@pwsan.com: add a short description of the fix to the commit log]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-04-13 05:28:34 -06:00
Paul Walmsley 3c55c1baff ARM: OMAP2+: hwmod: Revert "ARM: OMAP2+: hwmod: Make omap_hwmod_softreset wait for reset status"
This reverts commit f9a2f9c3fa.  This
commit caused a regression in the I2C hwmod reset on OMAP2/3/4,
logging messages similar to these during boot:

[    0.200378] omap_hwmod: i2c1: softreset failed (waited 10000 usec)
[    0.222076] omap_hwmod: i2c2: softreset failed (waited 10000 usec)

While the original patch was intended to fix some reset-related timing
issues, it's believed that these problems were actually fixed by
commit 2800852a07 ("ARM: OMAP2+: hwmod:
Restore sysc after a reset"):

    http://marc.info/?l=linux-arm-kernel&m=133410322617245&w=2

Cc: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-04-13 05:28:33 -06:00
Fernando Guzman Lugo d99de7f552 ARM: OMAP2+: hwmod: add softreset delay field and OMAP4 data
Due to HW limitation, some IPs should not be accessed just after a
softreset. Since the current hwmod sequence is accessing the sysconfig
register just after the reset, it might lead to OCP bus error in
that case.

Add a new field in the sysconfig structure to specify a delay in usecs
needed after doing a softreset.

In the case of the ISS and FDIF modules, the L3 OCP port will be
disconnected upon a SW reset. That issue was confirmed with HW simulation
and an errata should be available soon. The HW recommendation to avoid
that is to wait for 100 OCP clk cycles, before accessing the IP.

Considering the worse case (OPP50), the L3 bus will run at 100 MHz,
so a 1 usec delay is needed. Add an x2 margin to be safe.

Acked-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Fernando Guzman Lugo <fernando.lugo@ti.com>
[paul@pwsan.com: dropped FDIF change for now since the hwmod data is not
 yet upstream; the FDIF change will need to be added later once the FDIF
 data is merged]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-04-13 05:08:03 -06:00
Ingo Molnar a7ca08038b One more fix for perf/urgent:
. Fix mmap processing for guest kernels, from Nikunj A. Dadhania.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull various perf tooling fixes from Arnaldo Carvalho de Melo.
2012-04-13 09:47:04 +02:00
Jesper Juhl 7d7eb9ea31 ALSA: hda/realtek - Fix mem leak (and rid us of trailing whitespace).
In sound/pci/hda/patch_realtek.c::alc_auto_fill_dac_nids(), in the
'for (;;)' loop, if the 'badness' value returned from
fill_and_eval_dacs() is negative, then we'll return from the function
without freeing the memory we allocated for 'best_cfg', thus leaking.
Fix the leak by kfree()'ing the memory when badness is negative.

While I was there I also noticed some trailing whitespace in the
function that I removed (along with all other trailing whitespace in
the file) - it didn't seem worth-while to do that as two patches, so I
hope it's OK that I just did it all as one patch.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-04-13 07:35:57 +02:00
Linus Torvalds 4166fb6459 Add a fix for a bug hit by Alexey Shvetsov in ib_srtp that hits on
non-mlx4 hardware.
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Merge tag 'srpt-srq-type' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband fix from Roland Dreier:
 "Add a fix for a bug hit by Alexey Shvetsov in ib_srtp that hits on
  non-mlx4 hardware."

* tag 'srpt-srq-type' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/srpt: Set srq_type to IB_SRQT_BASIC
2012-04-12 18:51:32 -07:00
Paul Gortmaker e4757cab4c kconfig: delete last traces of __enabled_ from autoconf.h
We've now fixed IS_ENABLED() and friends to not require any special
"__enabled_" prefixed versions of the normal Kconfig options, so delete
the last traces of them being generated.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-12 18:35:58 -07:00
Paul Gortmaker a959613533 Revert "kconfig: fix __enabled_ macros definition for invisible and un-selected symbols"
This reverts commit 953742c8fe.

Dumping two lines into autoconf.h for all existing Kconfig options
results in a giant file (~16k lines) we have to process each time we
compile something.  We've weaned IS_ENABLED() and similar off of
requiring the __enabled_ definitions so now we can revert the change
which caused all the extra lines.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-12 18:35:58 -07:00
Paul Gortmaker 69349c2dc0 kconfig: fix IS_ENABLED to not require all options to be defined
Using IS_ENABLED() within C (vs.  within CPP #if statements) in its
current form requires us to actually define every possible bool/tristate
Kconfig option twice (__enabled_* and __enabled_*_MODULE variants).

This results in a huge autoconf.h file, on the order of 16k lines for a
x86_64 defconfig.

Fixing IS_ENABLED to be able to work on the smaller subset of just
things that we really have defined is step one to fixing this.  Which
means it has to not choke when fed non-enabled options, such as:

  include/linux/netdevice.h:964:1: warning: "__enabled_CONFIG_FCOE_MODULE" is not defined [-Wundef]

The original prototype of how to implement a C and preprocessor
compatible way of doing this came from the Google+ user "comex ." in
response to Linus' crowdsourcing challenge for a possible improvement on
his earlier C specific solution:

	#define config_enabled(x)       (__stringify(x)[0] == '1')

In this implementation, I've chosen variable names that hopefully make
how it works more understandable.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-12 18:35:58 -07:00
Josef Bacik d53ba47484 Btrfs: use commit root when loading free space cache
A user reported that booting his box up with btrfs root on 3.4 was way
slower than on 3.3 because I removed the ideal caching code.  It turns out
that we don't load the free space cache if we're in a commit for deadlock
reasons, but since we're reading the cache and it hasn't changed yet we are
safe reading the inode and free space item from the commit root, so do that
and remove all of the deadlock checks so we don't unnecessarily skip loading
the free space cache.  The user reported this fixed the slowness.  Thanks,

Tested-by: Calvin Walton <calvin.walton@kepstin.ca>
Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2012-04-12 20:54:01 -04:00
Linus Torvalds 7c427f4550 USB fixes for 3.4-rc2
Here are a number of fixes for the USB core and drivers for 3.4-rc2
 
 Lots of tiny xhci fixes here, a few usb-serial driver fixes and new device ids,
 and a smattering of other minor fixes in different USB drivers.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are a number of fixes for the USB core and drivers for 3.4-rc2

  Lots of tiny xhci fixes here, a few usb-serial driver fixes and new
  device ids, and a smattering of other minor fixes in different USB
  drivers.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'usb-3.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (30 commits)
  USB: update usbtmc api documentation
  xHCI: Correct the #define XHCI_LEGACY_DISABLE_SMI
  xHCI: use gfp flags from caller instead of GFP_ATOMIC
  xHCI: add XHCI_RESET_ON_RESUME quirk for VIA xHCI host
  USB: fix bug of device descriptor got from superspeed device
  xhci: Fix register save/restore order.
  xhci: Restore event ring dequeue pointer on resume.
  xhci: Don't write zeroed pointers to xHC registers.
  xhci: Warn when hosts don't halt.
  xhci: don't re-enable IE constantly
  usb: xhci: fix section mismatch in linux-next
  xHCI: correct to print the true HSEE of USBCMD
  USB: serial: fix race between probe and open
  UHCI: hub_status_data should indicate if ports are resuming
  EHCI: keep track of ports being resumed and indicate in hub_status_data
  USB: fix race between root-hub suspend and remote wakeup
  USB: sierra: add support for Sierra Wireless MC7710
  USB: ftdi_sio: fix race condition in TIOCMIWAIT, and abort of TIOCMIWAIT when the device is removed
  USB: ftdi_sio: fix status line change handling for TIOCMIWAIT and TIOCGICOUNT
  USB: don't ignore suspend errors for root hubs
  ...
2012-04-12 15:37:21 -07:00
Linus Torvalds f4f9c1ac78 tty and serial fixes for 3.4-rc2
Here are some tty and serial fixes for 3.4-rc2.
 
 Most important here is the pl011 fix, which has been reported by about
 100 different people, which means more people use it than I expected :)
 
 There are also some 8250 driver reverts due to some problems reported by
 them.  And other minor fixes as well.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty and serial fixes from Greg KH:
 "Here are some tty and serial fixes for 3.4-rc2.

  Most important here is the pl011 fix, which has been reported by about
  100 different people, which means more people use it than I expected
  :)

  There are also some 8250 driver reverts due to some problems reported
  by them.  And other minor fixes as well.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'tty-3.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  pch_uart: Add Kontron COMe-mTT10 uart clock quirk
  pch_uart: Fix MSI setting issue
  serial/8250_pci: add a "force background timer" flag and use it for the "kt" serial port
  Revert "serial/8250_pci: setup-quirk workaround for the kt serial controller"
  Revert "serial/8250_pci: init-quirk msi support for kt serial controller"
  tty/serial/omap: console can only be built-in
  serial: samsung: fix omission initialize ulcon in reset port fn()
  printk(): add KERN_CONT where needed in hpet and vt code
  tty/serial: atmel_serial: fix RS485 half-duplex problem
  tty: serial: altera_uart: Check for NULL platform_data in probe.
  isdn/gigaset: use gig_dbg() for debugging output
  omap-serial: Fix the error handling in the omap_serial probe
  serial: PL011: move interrupt clearing
2012-04-12 15:36:33 -07:00