Commit Graph

103258 Commits

Author SHA1 Message Date
Linus Torvalds
31b6ca0af7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (58 commits)
  Input: wacom_w8001 - support pen or touch only devices
  Input: wacom_w8001 - use __set_bit to set keybits
  Input: bu21013_ts - fix misuse of logical operation in place of bitop
  Input: i8042 - add Acer Aspire 5100 to the Dritek list
  Input: wacom - add support for digitizer in Lenovo W700
  Input: psmouse - disable the synaptics extension on OLPC machines
  Input: psmouse - fix up Synaptics comment
  Input: synaptics - ignore bogus mt packet
  Input: synaptics - add multi-finger and semi-mt support
  Input: synaptics - report clickpad property
  input: mt: Document interface updates
  Input: fix double equality sign in uevent
  Input: introduce device properties
  hid: egalax: Add support for Wetab (726b)
  Input: include MT library as source for kerneldoc
  MAINTAINERS: Update input-mt entry
  hid: egalax: Add support for Samsung NB30 netbook
  hid: egalax: Document the new devices in Kconfig
  hid: egalax: Add support for Wetab
  hid: egalax: Convert to MT slots
  ...

Fixed up trivial conflict in drivers/input/keyboard/Kconfig
2011-01-07 14:45:47 -08:00
Linus Torvalds
56b85f32d5 Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (36 commits)
  serial: apbuart: Fixup apbuart_console_init()
  TTY: Add tty ioctl to figure device node of the system console.
  tty: add 'active' sysfs attribute to tty0 and console device
  drivers: serial: apbuart: Handle OF failures gracefully
  Serial: Avoid unbalanced IRQ wake disable during resume
  tty: fix typos/errors in tty_driver.h comments
  pch_uart : fix warnings for 64bit compile
  8250: fix uninitialized FIFOs
  ip2: fix compiler warning on ip2main_pci_tbl
  specialix: fix compiler warning on specialix_pci_tbl
  rocket: fix compiler warning on rocket_pci_ids
  8250: add a UPIO_DWAPB32 for 32 bit accesses
  8250: use container_of() instead of casting
  serial: omap-serial: Add support for kernel debugger
  serial: fix pch_uart kconfig & build
  drivers: char: hvc: add arm JTAG DCC console support
  RS485 documentation: add 16C950 UART description
  serial: ifx6x60: fix memory leak
  serial: ifx6x60: free IRQ on error
  Serial: EG20T: add PCH_UART driver
  ...

Fixed up conflicts in drivers/serial/apbuart.c with evil merge that
makes the code look fairly sane (unlike either side).
2011-01-07 14:39:20 -08:00
Linus Torvalds
3e5b08cbbf Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (144 commits)
  USB: add support for Dream Cheeky DL100B Webmail Notifier (1d34:0004)
  USB: serial: ftdi_sio: add support for TIOCSERGETLSR
  USB: ehci-mxc: Setup portsc register prior to accessing OTG viewport
  USB: atmel_usba_udc: fix freeing irq in usba_udc_remove()
  usb: ehci-omap: fix tll channel enable mask
  usb: ohci-omap3: fix trivial typo
  USB: gadget: ci13xxx: don't assume that PAGE_SIZE is 4096
  USB: gadget: ci13xxx: fix complete() callback for no_interrupt rq's
  USB: gadget: update ci13xxx to work with g_ether
  USB: gadgets: ci13xxx: fix probing of compiled-in gadget drivers
  Revert "USB: musb: pm: don't rely fully on clock support"
  Revert "USB: musb: blackfin: pm: make it work"
  USB: uas: Use GFP_NOIO instead of GFP_KERNEL in I/O submission path
  USB: uas: Ensure we only bind to a UAS interface
  USB: uas: Rename sense pipe and sense urb to status pipe and status urb
  USB: uas: Use kzalloc instead of kmalloc
  USB: uas: Fix up the Sense IU
  usb: musb: core: kill unneeded #include's
  DA8xx: assign name to MUSB IRQ resource
  usb: gadget: g_ncm added
  ...

Manually fix up trivial conflicts in USB Kconfig changes in:
	arch/arm/mach-omap2/Kconfig
	arch/sh/Kconfig
	drivers/usb/Kconfig
	drivers/usb/host/ehci-hcd.c
and annoying chip clock data conflicts in:
	arch/arm/mach-omap2/clock3xxx_data.c
	arch/arm/mach-omap2/clock44xx_data.c
2011-01-07 13:16:28 -08:00
Linus Torvalds
da40d036fd Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (147 commits)
  [SCSI] arcmsr: fix write to device check
  [SCSI] lpfc: lower stack use in lpfc_fc_frame_check
  [SCSI] eliminate an unnecessary local variable from scsi_remove_target()
  [SCSI] libiscsi: use bh locking instead of irq with session lock
  [SCSI] libiscsi: do not take host lock in queuecommand
  [SCSI] be2iscsi: fix null ptr when accessing task hdr
  [SCSI] be2iscsi: fix gfp use in alloc_pdu
  [SCSI] libiscsi: add more informative failure message during iscsi scsi eh
  [SCSI] gdth: Add missing call to gdth_ioctl_free
  [SCSI] bfa: remove unused defintions and misc cleanups
  [SCSI] bfa: remove inactive functions
  [SCSI] bfa: replace bfa_assert with WARN_ON
  [SCSI] qla2xxx: Use sg_next to fetch next sg element while walking sg list.
  [SCSI] qla2xxx: Fix to avoid recursive lock failure during BSG timeout.
  [SCSI] qla2xxx: Remove code to not reset ISP82xx on failure.
  [SCSI] qla2xxx: Display mailbox register 4 during 8012 AEN for ISP82XX parts.
  [SCSI] qla2xxx: Don't perform a BIG_HAMMER if Get-ID (0x20) mailbox command fails on CNAs.
  [SCSI] qla2xxx: Remove redundant module parameter permission bits
  [SCSI] qla2xxx: Add sysfs node for displaying board temperature.
  [SCSI] qla2xxx: Code cleanup to remove unwanted comments and code.
  ...
2011-01-07 12:47:02 -08:00
Dan Carpenter
aa58abc20f input/tc3589x: fix compile error
There was a semi-colon missing and it broke the compile.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-07 12:44:45 -08:00
Linus Torvalds
b4a45f5fe8 Merge branch 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin
* 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin: (57 commits)
  fs: scale mntget/mntput
  fs: rename vfsmount counter helpers
  fs: implement faster dentry memcmp
  fs: prefetch inode data in dcache lookup
  fs: improve scalability of pseudo filesystems
  fs: dcache per-inode inode alias locking
  fs: dcache per-bucket dcache hash locking
  bit_spinlock: add required includes
  kernel: add bl_list
  xfs: provide simple rcu-walk ACL implementation
  btrfs: provide simple rcu-walk ACL implementation
  ext2,3,4: provide simple rcu-walk ACL implementation
  fs: provide simple rcu-walk generic_check_acl implementation
  fs: provide rcu-walk aware permission i_ops
  fs: rcu-walk aware d_revalidate method
  fs: cache optimise dentry and inode for rcu-walk
  fs: dcache reduce branches in lookup path
  fs: dcache remove d_mounted
  fs: fs_struct use seqlock
  fs: rcu-walk for path lookup
  ...
2011-01-07 08:56:33 -08:00
Nick Piggin
b3e19d924b fs: scale mntget/mntput
The problem that this patch aims to fix is vfsmount refcounting scalability.
We need to take a reference on the vfsmount for every successful path lookup,
which often go to the same mount point.

The fundamental difficulty is that a "simple" reference count can never be made
scalable, because any time a reference is dropped, we must check whether that
was the last reference. To do that requires communication with all other CPUs
that may have taken a reference count.

We can make refcounts more scalable in a couple of ways, involving keeping
distributed counters, and checking for the global-zero condition less
frequently.

- check the global sum once every interval (this will delay zero detection
  for some interval, so it's probably a showstopper for vfsmounts).

- keep a local count and only taking the global sum when local reaches 0 (this
  is difficult for vfsmounts, because we can't hold preempt off for the life of
  a reference, so a counter would need to be per-thread or tied strongly to a
  particular CPU which requires more locking).

- keep a local difference of increments and decrements, which allows us to sum
  the total difference and hence find the refcount when summing all CPUs. Then,
  keep a single integer "long" refcount for slow and long lasting references,
  and only take the global sum of local counters when the long refcount is 0.

This last scheme is what I implemented here. Attached mounts and process root
and working directory references are "long" references, and everything else is
a short reference.

This allows scalable vfsmount references during path walking over mounted
subtrees and unattached (lazy umounted) mounts with processes still running
in them.

This results in one fewer atomic op in the fastpath: mntget is now just a
per-CPU inc, rather than an atomic inc; and mntput just requires a spinlock
and non-atomic decrement in the common case. However code is otherwise bigger
and heavier, so single threaded performance is basically a wash.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:33 +11:00
Nick Piggin
b74c79e993 fs: provide rcu-walk aware permission i_ops
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:29 +11:00
Nick Piggin
34286d6662 fs: rcu-walk aware d_revalidate method
Require filesystems be aware of .d_revalidate being called in rcu-walk
mode (nd->flags & LOOKUP_RCU). For now do a simple push down, returning
-ECHILD from all implementations.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:29 +11:00
Nick Piggin
fb045adb99 fs: dcache reduce branches in lookup path
Reduce some branches and memory accesses in dcache lookup by adding dentry
flags to indicate common d_ops are set, rather than having to check them.
This saves a pointer memory access (dentry->d_op) in common path lookup
situations, and saves another pointer load and branch in cases where we
have d_op but not the particular operation.

Patched with:

git grep -E '[.>]([[:space:]])*d_op([[:space:]])*=' | xargs sed -e 's/\([^\t ]*\)->d_op = \(.*\);/d_set_d_op(\1, \2);/' -e 's/\([^\t ]*\)\.d_op = \(.*\);/d_set_d_op(\&\1, \2);/' -i

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:28 +11:00
Nick Piggin
fa0d7e3de6 fs: icache RCU free inodes
RCU free the struct inode. This will allow:

- Subsequent store-free path walking patch. The inode must be consulted for
  permissions when walking, so an RCU inode reference is a must.
- sb_inode_list_lock to be moved inside i_lock because sb list walkers who want
  to take i_lock no longer need to take sb_inode_list_lock to walk the list in
  the first place. This will simplify and optimize locking.
- Could remove some nested trylock loops in dcache code
- Could potentially simplify things a bit in VM land. Do not need to take the
  page lock to follow page->mapping.

The downsides of this is the performance cost of using RCU. In a simple
creat/unlink microbenchmark, performance drops by about 10% due to inability to
reuse cache-hot slab objects. As iterations increase and RCU freeing starts
kicking over, this increases to about 20%.

In cases where inode lifetimes are longer (ie. many inodes may be allocated
during the average life span of a single inode), a lot of this cache reuse is
not applicable, so the regression caused by this patch is smaller.

The cache-hot regression could largely be avoided by using SLAB_DESTROY_BY_RCU,
however this adds some complexity to list walking and store-free path walking,
so I prefer to implement this at a later date, if it is shown to be a win in
real situations. I haven't found a regression in any non-micro benchmark so I
doubt it will be a problem.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:26 +11:00
Nick Piggin
dc0474be3e fs: dcache rationalise dget variants
dget_locked was a shortcut to avoid the lazy lru manipulation when we already
held dcache_lock (lru manipulation was relatively cheap at that point).
However, how that the lru lock is an innermost one, we never hold it at any
caller, so the lock cost can now be avoided. We already have well working lazy
dcache LRU, so it should be fine to defer LRU manipulations to scan time.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:24 +11:00
Nick Piggin
b5c84bf6f6 fs: dcache remove dcache_lock
dcache_lock no longer protects anything. remove it.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:23 +11:00
Nick Piggin
949854d024 fs: Use rename lock and RCU for multi-step operations
The remaining usages for dcache_lock is to allow atomic, multi-step read-side
operations over the directory tree by excluding modifications to the tree.
Also, to walk in the leaf->root direction in the tree where we don't have
a natural d_lock ordering.

This could be accomplished by taking every d_lock, but this would mean a
huge number of locks and actually gets very tricky.

Solve this instead by using the rename seqlock for multi-step read-side
operations, retry in case of a rename so we don't walk up the wrong parent.
Concurrent dentry insertions are not serialised against.  Concurrent deletes
are tricky when walking up the directory: our parent might have been deleted
when dropping locks so also need to check and retry for that.

We can also use the rename lock in cases where livelock is a worry (and it
is introduced in subsequent patch).

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:22 +11:00
Nick Piggin
2fd6b7f507 fs: dcache scale subdirs
Protect d_subdirs and d_child with d_lock, except in filesystems that aren't
using dcache_lock for these anyway (eg. using i_mutex).

Note: if we change the locking rule in future so that ->d_child protection is
provided only with ->d_parent->d_lock, it may allow us to reduce some locking.
But it would be an exception to an otherwise regular locking scheme, so we'd
have to see some good results. Probably not worthwhile.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:21 +11:00
Nick Piggin
da5029563a fs: dcache scale d_unhashed
Protect d_unhashed(dentry) condition with d_lock. This means keeping
DCACHE_UNHASHED bit in synch with hash manipulations.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:21 +11:00
Nick Piggin
b7ab39f631 fs: dcache scale dentry refcount
Make d_count non-atomic and protect it with d_lock. This allows us to ensure a
0 refcount dentry remains 0 without dcache_lock. It is also fairly natural when
we start protecting many other dentry members with d_lock.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:21 +11:00
Nick Piggin
b1e6a015a5 fs: change d_hash for rcu-walk
Change d_hash so it may be called from lock-free RCU lookups. See similar
patch for d_compare for details.

For in-tree filesystems, this is just a mechanical change.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:20 +11:00
Nick Piggin
621e155a35 fs: change d_compare for rcu-walk
Change d_compare so it may be called from lock-free RCU lookups. This
does put significant restrictions on what may be done from the callback,
however there don't seem to have been any problems with in-tree fses.
If some strange use case pops up that _really_ cannot cope with the
rcu-walk rules, we can just add new rcu-unaware callbacks, which would
cause name lookup to drop out of rcu-walk mode.

For in-tree filesystems, this is just a mechanical change.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:19 +11:00
Nick Piggin
fb2d5b86af fs: name case update method
smpfs and ncpfs want to update a live dentry name in-place. Rather than
have them open code the locking, provide a documented dcache API.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:19 +11:00
Nick Piggin
fe15ce446b fs: change d_delete semantics
Change d_delete from a dentry deletion notification to a dentry caching
advise, more like ->drop_inode. Require it to be constant and idempotent,
and not take d_lock. This is how all existing filesystems use the callback
anyway.

This makes fine grained dentry locking of dput and dentry lru scanning
much simpler.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:18 +11:00
Dmitry Torokhov
554738da71 Merge branch 'next' into for-linus
Conflicts:
	include/linux/input.h
2011-01-06 22:34:59 -08:00
Linus Torvalds
01539ba2a7 Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (243 commits)
  omap2: Make OMAP2PLUS select OMAP_DM_TIMER
  OMAP4: hwmod data: Fix alignment and end of line in structurefields
  OMAP4: hwmod data: Move the DMA structures
  OMAP4: hwmod data: Move the smartreflex structures
  OMAP4: hwmod data: Fix missing SIDLE_SMART_WKUP in smartreflexsysc
  arm: omap: tusb6010: add name for MUSB IRQ
  arm: omap: craneboard: Add USB EHCI support
  omap2+: Initialize serial port for dynamic remuxing for n8x0
  omap2+: Add struct omap_board_data and use it for platform level serial init
  omap2+: Allow hwmod state changes to mux pads based on the state changes
  omap2+: Add support for hwmod specific muxing of devices
  omap2+: Add omap_mux_get_by_name
  OMAP2: PM: fix compile error when !CONFIG_SUSPEND
  MAINTAINERS: OMAP: hwmod: update hwmod code, data maintainership
  OMAP4: Smartreflex framework extensions
  OMAP4: hwmod: Add inital data for smartreflex modules.
  OMAP4: PM: Program correct init voltages for scalable VDDs
  OMAP4: Adding voltage driver support
  OMAP4: Register voltage PMIC parameters with the voltage layer
  OMAP3: PM: Program correct init voltages for VDD1 and VDD2
  ...

Fix up trivial conflict in arch/arm/plat-omap/Kconfig
2011-01-06 19:13:58 -08:00
Linus Torvalds
9e9bc97367 Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (255 commits)
  [media] radio-aimslab.c: Fix gcc 4.5+ bug
  [media] cx25821: Fix compilation breakage due to BKL dependency
  [media] v4l2-compat-ioctl32: fix compile warning
  [media] zoran: fix compiler warning
  [media] tda18218: fix compile warning
  [media] ngene: fix compile warning
  [media] DVB: IR support for TechnoTrend CT-3650
  [media] cx23885, cimax2.c: Fix case of two CAM insertion irq
  [media] ir-nec-decoder: fix repeat key issue
  [media] staging: se401 depends on USB
  [media] staging: usbvideo/vicam depends on USB
  [media] soc_camera: Add the ability to bind regulators to soc_camedra devices
  [media] V4L2: Add a v4l2-subdev (soc-camera) driver for OmniVision OV2640 sensor
  [media] v4l: soc-camera: switch to .unlocked_ioctl
  [media] v4l: ov772x: simplify pointer dereference
  [media] ov9640: fix OmniVision OV9640 sensor driver's priv data retrieving
  [media] ov9640: use macro to request OmniVision OV9640 sensor private data
  [media] ivtv-i2c: Fix two warnings
  [media] staging/lirc: Update lirc TODO files
  [media] cx88: Remove the obsolete i2c_adapter.id field
  ...
2011-01-06 18:32:12 -08:00
Linus Torvalds
3c0cb7c31c Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (416 commits)
  ARM: DMA: add support for DMA debugging
  ARM: PL011: add DMA burst threshold support for ST variants
  ARM: PL011: Add support for transmit DMA
  ARM: PL011: Ensure IRQs are disabled in UART interrupt handler
  ARM: PL011: Separate hardware FIFO size from TTY FIFO size
  ARM: PL011: Allow better handling of vendor data
  ARM: PL011: Ensure error flags are clear at startup
  ARM: PL011: include revision number in boot-time port printk
  ARM: vexpress: add sched_clock() for Versatile Express
  ARM i.MX53: Make MX53 EVK bootable
  ARM i.MX53: Some bug fix about MX53 MSL code
  ARM: 6607/1: sa1100: Update platform device registration
  ARM: 6606/1: sa1100: Fix platform device registration
  ARM i.MX51: rename IPU irqs
  ARM i.MX51: Add ipu clock support
  ARM: imx/mx27_3ds: Add PMIC support
  ARM: DMA: Replace page_to_dma()/dma_to_page() with pfn_to_dma()/dma_to_pfn()
  mx51: fix usb clock support
  MX51: Add support for usb host 2
  arch/arm/plat-mxc/ehci.c: fix errors/typos
  ...
2011-01-06 16:50:35 -08:00
Linus Torvalds
f70f5b9dc7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6: (25 commits)
  atyfb: Fix bootup hangs on sparc64.
  sparc: update copyright in piggyback.c
  sparc: unify strip command in boot/Makefile
  sparc: rename piggyback_32 to piggyback
  sparc: fix tftpboot.img for sparc64 on little-endian host
  sparc: add $BITS to piggyback arguments
  sparc: remove obsolete ELF support in piggyback_32.c
  sparc: additional comments to piggyback_32.c
  sparc: use _start for the start entry (like 64 bit does)
  sparc: use trapbase in setup_arch
  sparc: refactor piggy_32.c
  Added support for ampopts in APBUART driver. Used in AMP systems.
  APBUART: added raw AMBA vendor/device number to match against.
  SPARC/LEON: avoid AMBAPP name duplicates in openprom fs when REG is missing
  SPARC/LEON: added support for selecting Timer Core and Timer within core
  LEON: added raw AMBA vendor/device number to find TIMER, IRQCTRL
  SPARC/LEON: added support for IRQAMP IRQ Controller
  SPARC/LEON: find IRQCTRL and Timer via OF-Tree, instead of hardcoded.
  sparc: fix sparse warnings in arch/sparc/prom for 32 bit build
  sparc: remove unused prom tree functions
  ...
2011-01-06 15:30:54 -08:00
Russell King
404a02cbd2 Merge branch 'devel-stable' into devel
Conflicts:
	arch/arm/mach-pxa/clock.c
	arch/arm/mach-pxa/clock.h
2011-01-06 22:33:32 +00:00
Russell King
4073723acb Merge branch 'misc' into devel
Conflicts:
	arch/arm/Kconfig
	arch/arm/common/Makefile
	arch/arm/kernel/Makefile
	arch/arm/kernel/smp.c
2011-01-06 22:32:52 +00:00
Russell King
4ec3eb1363 Merge branch 'smp' into misc
Conflicts:
	arch/arm/kernel/entry-armv.S
	arch/arm/mm/ioremap.c
2011-01-06 22:32:03 +00:00
Linus Torvalds
b69fc2efc9 Merge branch 'for-linus' of git://codeaurora.org/quic/kernel/davidb/linux-msm
* 'for-linus' of git://codeaurora.org/quic/kernel/davidb/linux-msm: (35 commits)
  mmc: msm_sdcc: Check for only DATA_END interrupt to end a request
  mmc: msm_sdcc: Fix bug in PIO mode when data size is not word aligned
  mmc: msm_sdcc: Reset SDCC in case of data transfer errors
  mmc: msm_sdcc: Add prog done interrupt support
  mmc: msm_sdcc: Fix possible circular locking dependency warning
  MSM: Add USB support for MSM7x30
  MSM: Add USB suport for QSD8x50
  msm: initial framebuffer support
  msm: add handling for clocks tagged as CLK_MINMAX
  msm: trout: change name of pmdh_clk to mddi_clk
  msm: add CLK_MINMAX to pmdh_clk
  msm: trout: add gpio_to_irq
  msm: iommu: Use the correct memory allocation flag
  msm_serial: Remove redundant unlikely()
  msm: iommu: Miscellaneous code cleanup
  msm: iommu: Support cache-coherent memory access
  msm: iommu: Definitions for extended memory attributes
  msm: iommu: Kconfig dependency for the IOMMU API
  msm: iommu: Check if device is already attached
  msm: iommu: Kconfig item for cacheable page tables
  ...
2011-01-06 13:36:30 -08:00
Linus Torvalds
84b7290cca Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6: (55 commits)
  video: udlfb: Kill off special printk wrappers, use pr_fmt().
  video: udlfb: Kill off some magic constants for EDID sizing.
  video: udlfb: deifdefify (yes, that's a word).
  fbdev: modedb: Add a new mode for 864x480 TAAL panels.
  drivers/video/i810/i810-i2c.c: fix i2c bus handling
  video: Fix the HGA framebuffer driver
  drivers/video/carminefb.c: improve error handling
  video: imxfb: Fix the maximum value for yres
  fbdev: sh_mobile_lcdcfb: Enable 32 bpp and 24 bpp support
  fbdev: sh_mipi_dsi: use platform provided register layout and values
  ARM: mach-shmobile: specify sh7372 MIPI DSI register layout
  fbdev: sh_mipi_dsi: support different register layouts
  ARM: mach-shmobile: improve MIPI DSI clock configuration
  fbdev: sh-mobile: implement MIPI DSI runtime PM support
  sisfb: eliminate compiler warnings
  sisfb: delete unused register I/O macros
  sisfb: replace setSISIDXREG with SiS_SetRegANDOR
  sisfb: replace andSISIDXREG with SiS_SetRegAND
  sisfb: replace orSISIDXREG with SiS_SetRegOR
  sisfb: replace outSISIDXREG with SiS_SetReg
  ...
2011-01-06 13:35:12 -08:00
Linus Torvalds
9858a38ea3 Merge branch 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: include Migo-R TS driver in Migo-R defconfig
  sh: correct definitions to access stack pointers
  sh: Tidy up SH-4A unaligned load support.
  dma: shdma: NMI support.
  sh: mach-sdk7786: Handle baseboard NMI source selection.
  sh: mach-rsk: Add polled GPIO buttons support for RSK+7203.
  sh: Break out cpuinfo_op procfs bits.
  sh: Enable optional gpiolib for all CPUs with pinmux tables.
  sh: migrate SH_CLK_MD to mode pin API.
  sh: machvec IO death.
2011-01-06 13:34:45 -08:00
Linus Torvalds
abb359450f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1436 commits)
  cassini: Use local-mac-address prom property for Cassini MAC address
  net: remove the duplicate #ifdef __KERNEL__
  net: bridge: check the length of skb after nf_bridge_maybe_copy_header()
  netconsole: clarify stopping message
  netconsole: don't announce stopping if nothing happened
  cnic: Fix the type field in SPQ messages
  netfilter: fix export secctx error handling
  netfilter: fix the race when initializing nf_ct_expect_hash_rnd
  ipv4: IP defragmentation must be ECN aware
  net: r6040: Return proper error for r6040_init_one
  dcb: use after free in dcb_flushapp()
  dcb: unlock on error in dcbnl_ieee_get()
  net: ixp4xx_eth: Return proper error for eth_init_one
  include/linux/if_ether.h: Add #define ETH_P_LINK_CTL for HPNA and wlan local tunnel
  net: add POLLPRI to sock_def_readable()
  af_unix: Avoid socket->sk NULL OOPS in stream connect security hooks.
  net_sched: pfifo_head_drop problem
  mac80211: remove stray extern
  mac80211: implement off-channel TX using hw r-o-c offload
  mac80211: implement hardware offload for remain-on-channel
  ...
2011-01-06 12:30:19 -08:00
Richard Mortimer
4e3dbdb139 cassini: Use local-mac-address prom property for Cassini MAC address
Fallback on the local-mac-address prom property if the Cassini device
does not have an address programmed in the VPD ROM. This uses the same
technique as implemented by the sungem driver.

The problem was reported by Frans van Berckel using Debian kernel 2.6.34-7
on Sun Fire V440. udev was assigning a new eth<n> device name on each reboot
because the cassini driver was using a random MAC address.

Fix tested on 2.6.34-7 and 2.6.37 Sun Fire V440. Compile tested against
2.6.36 davem/sparc-2.6.git

Reported-by: Frans van Berckel <fberckel@xs4all.nl>
Tested-by: Frans van Berckel <fberckel@xs4all.nl>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Richard Mortimer <richm@oldelvet.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-06 11:50:30 -08:00
David S. Miller
09798eb947 atyfb: Fix bootup hangs on sparc64.
After commit 25edd6946a ("sparc64: Get
rid of indirect p1275 PROM call buffer.")  we can't pass virtual
addresses >4GB to PROM calls.

Largely this is never necessary in drivers because we have a copy of
the entire PROM device tree in the kernel and a set of of_*()
interfaces to access it.

Unfortunately there were some lingering prom calls in the atyfb
driver, in particular prom_finddevice() was being called with an
on-stack address which could be anywhere.

This code is actually probing for information we already have, the
PROM choosen console output device is stored in of_console_device so
all of this nasty code consolidates into a one-line comparison.

Next we have some prom_getintdefault() calls which are trivially
transformed into the equivalent of_getintprop_default().

Special thanks to Fabio, who figured out exactly where the bootup
was hanging.  That made this bug trivial to fix.

Reported-by: Fabio M. Di NItto <fabbione@fabbione.net>
Reported-by: Sam Ravnborg <sam@ravnborg.org>
Reported-by: Frans van Berckel <fberckel@xs4all.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Fabio M. Di NItto <fabbione@fabbione.net>
2011-01-06 11:38:19 -08:00
Ferenc Wagner
38cfb907a5 netconsole: clarify stopping message
Signed-off-by: Ferenc Wagner <wferi@niif.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-06 11:30:23 -08:00
Ferenc Wagner
141dfba342 netconsole: don't announce stopping if nothing happened
Signed-off-by: Ferenc Wagner <wferi@niif.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-06 11:30:22 -08:00
Michael Chan
68d7c1aa2f cnic: Fix the type field in SPQ messages
The new firmware interface requires each Slow Path Queue (SPQ) message's
type field to include the function number.  The existing code does not
do this consistently.  We fix this by OR'ing in the function number
into the type field centrally in cnic_submit_kwqe_16().

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-06 11:27:22 -08:00
Axel Lin
9c86c0f4ba net: r6040: Return proper error for r6040_init_one
Return -ENOMEM instead of 0 for the case of mdiobus_alloc and kmalloc failure.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-06 11:18:07 -08:00
Axel Lin
0c66100174 net: ixp4xx_eth: Return proper error for eth_init_one
Return PTR_ERR(port->phydev) instead of 1 if phy_connect failed.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-06 11:12:01 -08:00
Linus Torvalds
b4c6e2ea5e Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, earlyprintk: Move mrst early console to platform/ and fix a typo
  x86, apbt: Setup affinity for apb timers acting as per-cpu timer
  ce4100: Add errata fixes for UART on CE4100
  x86: platform: Move iris to x86/platform where it belongs
  x86, mrst: Check platform_device_register() return code
  x86/platform: Add Eurobraille/Iris power off support
  x86, mrst: Add explanation for using 1960 as the year offset for vrtc
  x86, mrst: Fix dependencies of "select INTEL_SCU_IPC"
  x86, mrst: The shutdown for MRST requires the SCU IPC mechanism
  x86: Ce4100: Add reboot_fixup() for CE4100
  ce4100: Add PCI register emulation for CE4100
  x86: Add CE4100 platform support
  x86: mrst: Set vRTC's IRQ to level trigger type
  x86: mrst: Add audio driver bindings
  rtc: Add drivers/rtc/rtc-mrst.c
  x86: mrst: Add vrtc driver which serves as a wall clock device
  x86: mrst: Add Moorestown specific reboot/shutdown support
  x86: mrst: Parse SFI timer table for all timer configs
  x86/mrst: Add SFI platform device parsing code
2011-01-06 11:06:31 -08:00
Linus Torvalds
017892c341 Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Fix APIC ID sizing bug on larger systems, clean up MAX_APICS confusion
  x86, acpi: Parse all SRAT cpu entries even above the cpu number limitation
  x86, acpi: Add MAX_LOCAL_APIC for 32bit
  x86: io_apic: Split setup_ioapic_ids_from_mpc()
  x86: io_apic: Fix CONFIG_X86_IO_APIC=n breakage
  x86: apic: Move probe_nr_irqs_gsi() into ioapic_init_mappings()
  x86: Allow platforms to force enable apic
2011-01-06 10:51:36 -08:00
Linus Torvalds
42cbd8efb0 Merge branch 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, cacheinfo: Cleanup L3 cache index disable support
  x86, amd-nb: Cleanup AMD northbridge caching code
  x86, amd-nb: Complete the rename of AMD NB and related code
2011-01-06 10:50:28 -08:00
Thomas Gleixner
568389c257 serial: apbuart: Fixup apbuart_console_init()
commit 35c64e5d (drivers: serial: apbuart: Handle OF failures
gracefully) missed that the modified grlib_apbuart_configure()
function is called from apbuart_console_init() as well.

Fix the fallout.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-01-06 10:44:11 -08:00
Mauro Carvalho Chehab
e3c9221519 [media] radio-aimslab.c: Fix gcc 4.5+ bug
gcc 4.5+ doesn't properly evaluate some inlined expressions.
A previous patch were proposed by Andrew Morton using noinline.
However, the entire inlined function is bogus, so let's just
remove it and be happy.

Reported-by: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-01-06 08:26:02 -02:00
Paul Mundt
1928e87bcf Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
	drivers/video/sh_mobile_lcdcfb.c

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-06 18:27:34 +09:00
Paul Mundt
f862f904d3 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
Conflicts:
	arch/sh/kernel/cpu/sh2a/clock-sh7201.c

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-06 18:24:07 +09:00
Paul Mundt
ca9c20ce2b Merge branch 'fbdev/udlfb' 2011-01-06 18:10:09 +09:00
Paul Mundt
81f6f3c104 video: udlfb: Kill off special printk wrappers, use pr_fmt().
This kills off all of the dl_xxx() printk wrappers and simply stubs in a
pr_fmt() definition to accomplish the same thing.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-06 18:07:54 +09:00
Paul Mundt
b9f03a3cd0 video: udlfb: Kill off some magic constants for EDID sizing.
The edid length is fixed, so use the standard definition consistently.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-06 18:04:02 +09:00