11 years agoeeprom/at25: bugfix "not ready" timeout after write
Sebastian Heutling [Wed, 29 Jul 2009 22:04:05 +0000]
eeprom/at25: bugfix "not ready" timeout after write

Under certain circumstances msleep(1) within the loop, which waits for the
EEPROM to be finished, might take longer than the timeout.  On the next
loop the status register might now return to be ready and therefore the
loop finishes.  The following check now tests if a timeout occurred and if
so returns an error although the device reported it was ready.

This fix replaces testing the occurrence of the timeout by testing the
"not ready" bit in the status register.

Signed-off-by: Sebastian Heutling <heutling@who-ing.de>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agocgroups: fix pid namespace bug
Li Zefan [Wed, 29 Jul 2009 22:04:04 +0000]
cgroups: fix pid namespace bug

The bug was introduced by commit cc31edceee04a7b87f2be48f9489ebb72d264844
("cgroups: convert tasks file to use a seq_file with shared pid array").

We cache a pid array for all threads that are opening the same "tasks"
file, but the pids in the array are always from the namespace of the
last process that opened the file, so all other threads will read pids
from that namespace instead of their own namespaces.

To fix it, we maintain a list of pid arrays, which is keyed by pid_ns.
The list will be of length 1 at most time.

Reported-by: Paul Menage <menage@google.com>
Idea-by: Paul Menage <menage@google.com>
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Reviewed-by: Serge Hallyn <serue@us.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agodrivers/video/backlight/jornada720_bl.c: fix build
Kristoffer Ericson [Wed, 29 Jul 2009 22:04:03 +0000]
drivers/video/backlight/jornada720_bl.c: fix build

Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agolib: export generic atomic64_t functions
Roland Dreier [Wed, 29 Jul 2009 22:04:02 +0000]
lib: export generic atomic64_t functions

The generic atomic64_t implementation in lib/ did not export the functions
it defined, which means that modules that use atomic64_t would not link on
platforms (such as 32-bit powerpc).  For example, trying to build a kernel
with CONFIG_NET_RDS on such a platform would fail with:

    ERROR: "atomic64_read" [net/rds/rds.ko] undefined!
    ERROR: "atomic64_set" [net/rds/rds.ko] undefined!

Fix this by exporting the atomic64_t functions to modules.  (I export the
entire API even if it's not all currently used by in-tree modules to avoid
having to continue fixing this in dribs and drabs)

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agohugetlbfs: fix i_blocks accounting
Eric Sandeen [Wed, 29 Jul 2009 22:02:16 +0000]
hugetlbfs: fix i_blocks accounting

As reported in Red Hat bz #509671, i_blocks for files on hugetlbfs get
accounting wrong when doing something like:

   $ > foo
   $ date  > foo
   date: write error: Invalid argument
   $ /usr/bin/stat foo
     File: `foo'
     Size: 0          Blocks: 18446744073709547520 IO Block: 2097152 regular
...

This is because hugetlb_unreserve_pages() is unconditionally removing
blocks_per_huge_page(h) on each call rather than using the freed amount.
If there were 0 blocks, it goes negative, resulting in the above.

This is a regression from commit a5516438959d90b071ff0a484ce4f3f523dc3152
("hugetlb: modular state for hugetlb page size")

which did:

- inode->i_blocks -= BLOCKS_PER_HUGEPAGE * freed;
+ inode->i_blocks -= blocks_per_huge_page(h);

so just put back the freed multiplier, and it's all happy again.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Acked-by: Andi Kleen <andi@firstfloor.org>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agortc: mark if rtc-cmos drivers were successfully registered
Thadeu Lima de Souza Cascardo [Wed, 29 Jul 2009 22:02:13 +0000]
rtc: mark if rtc-cmos drivers were successfully registered

rtc-cmos has two drivers, one PNP and one platform.  When PNP has not
succeeded probing, platform is registered.  However, it tries to
unregister both drivers unconditionally, instead of only unregistering
those that were successfully registered.  This causes runtime warnings to
be emitted from the driver core code.

Fix this with a boolean variable for each driver indicating whether
registering was successful.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Alessandro Zummo <alessandro.zummo@towertech.it>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Brownell <david-b@pacbell.net>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Greg KH <greg@kroah.com>
Cc: Ozan Caglayan <ozan@pardus.org.tr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agospi: omap2_mcspi rxdma bugfix
Eero Nurkkala [Wed, 29 Jul 2009 22:02:12 +0000]
spi: omap2_mcspi rxdma bugfix

When data is read through DMA, the last element must be read separately
through the RX register.  It cannot be transferred by the DMA.  For
further details see e.g.  OMAP35x TRM (table 19-16).

Without the fix the driver causes extra clocks to be clocked to the bus
after DMA RX operations.  This can cause interesting behaviour with some
devices.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Eero Nurkkala <ext-eero.nurkkala@nokia.com>
[aaro.koskinen@nokia.com: Simplified the patch while keeping the idea.]
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agospi: omap2_mcspi supports wake events
Jouni Hogander [Wed, 29 Jul 2009 22:02:11 +0000]
spi: omap2_mcspi supports wake events

Currently mcspi wake-ups are not enabled.  This might cause cases where
OMAP is not waking up on mcspi events.

Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agos3c-fb: fix off-by-one bug in loop indexes
Pawel Osciak [Wed, 29 Jul 2009 22:02:10 +0000]
s3c-fb: fix off-by-one bug in loop indexes

Fixed off-by-one bug in loop indexes - some elements beyond windows' array
were accessed, which might result in memory access violations when
removing/suspending the device.

Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoedac: x38 fix mchbar high register addr
Lu Zhihe [Wed, 29 Jul 2009 22:02:09 +0000]
edac: x38 fix mchbar high register addr

Intel X38 MCHBAR is a 64bits register, base from 0x48, so its higher base
is 0x4C.

Signed-off-by: Lu Zhihe <tombowfly@gmail.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Cc: <stable@kernel.org> [2.6.30.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agokexec: fix omitting offset in extended crashkernel syntax
Hidetoshi Seto [Wed, 29 Jul 2009 22:02:08 +0000]
kexec: fix omitting offset in extended crashkernel syntax

Setting
 "crashkernel=512M-2G:64M,2G-:128M"
does not work but it turns to work if it has a trailing-whitespace,
like
 "crashkernel=512M-2G:64M,2G-:128M ".

It was because of a bug in the parser, running over the cmdline.

This patch adds a check of the termination.

Reported-by: Jin Dongming <jin.dongming@np.css.fujitsu.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Tested-by: Jin Dongming <jin.dongming@np.css.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agomm: copy over oom_adj value at fork time
Rik van Riel [Wed, 29 Jul 2009 22:02:07 +0000]
mm: copy over oom_adj value at fork time

Fix a post-2.6.31 regression which was introduced by
2ff05b2b4eac2e63d345fc731ea151a060247f53 ("oom: move oom_adj value from
task_struct to mm_struct").

After moving the oom_adj value from the task struct to the mm_struct, the
oom_adj value was no longer properly inherited by child processes.

Copying over the oom_adj value at fork time fixes that bug.

[kosaki.motohiro@jp.fujitsu.com: test for current->mm before dereferencing it]
Signed-off-by: Rik van Riel <riel@redhat.com>
Reported-by: Paul Menage <manage@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agomm: avoid endless looping for oom killed tasks
David Rientjes [Wed, 29 Jul 2009 22:02:06 +0000]
mm: avoid endless looping for oom killed tasks

If a task is oom killed and still cannot find memory when trying with
no watermarks, it's better to fail the allocation attempt than to loop
endlessly.  Direct reclaim has already failed and the oom killer will
be a no-op since current has yet to die, so there is no other
alternative for allocations that are not __GFP_NOFAIL.

Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agopage-allocator: preserve PFN ordering when __GFP_COLD is set
Mel Gorman [Wed, 29 Jul 2009 22:02:04 +0000]
page-allocator: preserve PFN ordering when __GFP_COLD is set

Fix a post-2.6.24 performace regression caused by
3dfa5721f12c3d5a441448086bee156887daa961 ("page-allocator: preserve PFN
ordering when __GFP_COLD is set").

Narayanan reports "The regression is around 15%.  There is no disk controller
as our setup is based on Samsung OneNAND used as a memory mapped device on a
OMAP2430 based board."

The page allocator tries to preserve contiguous PFN ordering when returning
pages such that repeated callers to the allocator have a strong chance of
getting physically contiguous pages, particularly when external fragmentation
is low.  However, of the bulk of the allocations have __GFP_COLD set as they
are due to aio_read() for example, then the PFNs are in reverse PFN order.
This can cause performance degration when used with IO controllers that could
have merged the requests.

This patch attempts to preserve the contiguous ordering of PFNs for users of
__GFP_COLD.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Reported-by: Narayananu Gopalakrishnan <narayanan.g@samsung.com>
Tested-by: Narayanan Gopalakrishnan <narayanan.g@samsung.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agomarkup_oops: fix it with 32-bit userspace on a 64-bit kernel
Matthew Wilcox [Wed, 29 Jul 2009 22:02:03 +0000]
markup_oops: fix it with 32-bit userspace on a 64-bit kernel

A 32-bit perl can't handle 64-bit addresses without using the BigInt
package.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agokmemleak: Protect the seq start/next/stop sequence by rcu_read_lock()
Catalin Marinas [Wed, 29 Jul 2009 15:26:57 +0000]
kmemleak: Protect the seq start/next/stop sequence by rcu_read_lock()

Objects passed to kmemleak_seq_next() have an incremented reference
count (hence not freed) but they may point via object_list.next to
other freed objects. To avoid this, the whole start/next/stop sequence
must be protected by rcu_read_lock().

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoMerge branch 'drm-radeon-kms' of git://git.kernel.org/pub/scm/linux/kernel/git/airlie...
Linus Torvalds [Wed, 29 Jul 2009 19:31:59 +0000]
Merge branch 'drm-radeon-kms' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-radeon-kms' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (35 commits)
  drm/radeon: set fb aperture sizes for framebuffer handoff.
  drm/ttm: fix highuser vs dma32 confusion.
  drm/radeon: Fix size used for benchmarking BO copies.
  drm/radeon: Add radeon.test parameter for running BO GPU copy tests.
  drm/radeon/kms: allow interruptible waits for objects.
  drm/ttm: powerpc: Fix Highmem cache flushing.
  x86: Export kmap_atomic_prot() needed for TTM.
  drm/ttm: Fix ttm in-kernel copying of pages with non-standard caching attributes.
  drm/ttm: Fix an oops and sync object leak.
  drm/radeon/kms: vram sizing on certain r100 chips needs workaround.
  drm/radeon: Pay more attention to object placement requested by userspace.
  drm/radeon: Fall back to evicting BOs with memcpy if necessary.
  drm/radeon: Don't unreserve twice on failure to validate.
  drm/radeon/kms: fix bandwidth computation on avivo hardware
  drm/radeon/kms: add initial colortiling support.
  drm/radeon/kms: fix hotspot handling on pre-avivo chips
  drm/radeon/kms: enable frac fb divs on rs600/rs690/rs740
  drm/radeon/kms: add PLL flag to prefer frequencies <= the target freq
  drm/radeon/kms: block RN50 from using 3D engine.
  drm/radeon/kms: fix VRAM sizing like DDX does it.
  ...

11 years agoMerge branch 'zero-length' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik...
Linus Torvalds [Wed, 29 Jul 2009 19:30:54 +0000]
Merge branch 'zero-length' of git://git./linux/kernel/git/jgarzik/misc-2.6

* 'zero-length' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
  Remove zero-length file drivers/char/vr41xx_giu.c

11 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Wed, 29 Jul 2009 19:29:39 +0000]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: accept late unlocking of HPA
  libata: Updates and fixes for pata_at91 driver
  ata_piix: Add new short cable ID
  ata_piix: Add new laptop short cable IDs
  ahci: add device IDs for Ibex Peak ahci controllers
  libata: remove superfluous NULL pointer checks
  libata: add missing NULL pointer check to ata_eh_reset()
  pata_pcmcia: add CNF-CDROM-ID

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
Linus Torvalds [Wed, 29 Jul 2009 19:29:08 +0000]
Merge git://git./linux/kernel/git/gregkh/driver-core-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  driver core: documentation: make it clear that sysfs is optional
  driver core: sysdev: do not send KOBJ_ADD uevent if kobject_init_and_add fails
  Dynamic debug: fix typo: -/->
  driver core: firmware_class:fix memory leak of page pointers array
  sysfs: fix hardlink count on device_move

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
Linus Torvalds [Wed, 29 Jul 2009 19:28:49 +0000]
Merge git://git./linux/kernel/git/gregkh/staging-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
  staging: udlfb: Add vmalloc.h include
  staging: remove aten2011 driver
  Staging: android: lowmemorykiller.c: fix it for "oom: move oom_adj value from task_struct to mm_struct"
  Staging: serqt_usb2: fix memory leak in error case
  Staging: serqt_usb2: add missing calls to tty_kref_put()

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
Linus Torvalds [Wed, 29 Jul 2009 19:28:23 +0000]
Merge git://git./linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (34 commits)
  USB: xhci: Stall handling bug fixes.
  USB: xhci: Support for 64-byte contexts
  USB: xhci: Always align output device contexts to 64 bytes.
  USB: xhci: Scratchpad buffer allocation
  USB: Fix parsing of SuperSpeed Endpoint Companion descriptor.
  USB: xhci: Fail gracefully if there's no SS ep companion descriptor.
  USB: xhci: Handle babble errors on transfers.
  USB: xhci: Setup HW retries correctly.
  USB: xhci: Check if the host controller died in IRQ handler.
  USB: xhci: Don't oops if the host doesn't halt.
  USB: xhci: Make debugging more verbose.
  USB: xhci: Correct Event Handler Busy flag usage.
  USB: xhci: Handle short control packets correctly.
  USB: xhci: Represent 64-bit addresses with one u64.
  USB: xhci: Use GFP_ATOMIC while holding spinlocks.
  USB: xhci: Deal with stalled endpoints.
  USB: xhci: Set TD size in transfer TRB.
  USB: xhci: fix less- and greater than confusion
  USB: usbtest: no need for USB_DEVICEFS
  USB: musb: fix CONFIGDATA register read issue
  ...

11 years agopty: avoid forcing 'low_latency' tty flag
OGAWA Hirofumi [Wed, 29 Jul 2009 19:15:56 +0000]
pty: avoid forcing 'low_latency' tty flag

We really don't want to mark the pty as a low-latency device, because as
Alan points out, the ->write method can be called from an IRQ (ppp?),
and that means we can't use ->low_latency=1 as we take mutexes in the
low_latency case.

So rather than using low_latency to force the written data to be pushed
to the ldisc handling at 'write()' time, just make the reader side (or
the poll function) do the flush when it checks whether there is data to
be had.

This also fixes the problem with lost data in an emacs compile buffer
(bugzilla 13815), and we can thus revert the low_latency pty hack
(commit 3a54297478e6578f96fd54bf4daa1751130aca86: "pty: quickfix for the
pty ENXIO timing problems").

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[ Modified to do the tty_flush_to_ldisc() inside input_available_p() so
  that it triggers for both read and poll()  - Linus]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agodrm/radeon: set fb aperture sizes for framebuffer handoff.
Dave Airlie [Wed, 29 Jul 2009 07:07:38 +0000]
drm/radeon: set fb aperture sizes for framebuffer handoff.

This will allow efi/vesa to handoff to radeon.

Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agodrm/ttm: fix highuser vs dma32 confusion.
Dave Airlie [Wed, 29 Jul 2009 06:56:52 +0000]
drm/ttm: fix highuser vs dma32 confusion.

DMA32 and highmem are sort of exclusive.

Noticed by AndrewR on #radeon.

Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agodrm/radeon: Fix size used for benchmarking BO copies.
Michel Dänzer [Sun, 19 Jul 2009 23:44:03 +0000]
drm/radeon: Fix size used for benchmarking BO copies.

The incorrect size caused benchmark results to be inflated by a factor of 4.

Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agodrm/radeon: Add radeon.test parameter for running BO GPU copy tests.
Michel Dänzer [Tue, 21 Jul 2009 09:23:57 +0000]
drm/radeon: Add radeon.test parameter for running BO GPU copy tests.

If enabled, during initialization BO GTT->VRAM and VRAM->GTT GPU copies are
tested across the whole GTT aperture.

This has helped uncover the benchmark copy size bug and verify the maximum
aperture size supported by the AGP bridge in my PowerBook.

Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agodrm/radeon/kms: allow interruptible waits for objects.
Dave Airlie [Fri, 24 Jul 2009 03:47:45 +0000]
drm/radeon/kms: allow interruptible waits for objects.

Blocking here isn't something the X server mouse appreciates,
avoid the block and let userspace retry the waits.

libdrm_radeon userspace library is also expecting EBUSY not ERESTART

Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agodrm/ttm: powerpc: Fix Highmem cache flushing.
Thomas Hellstrom [Fri, 24 Jul 2009 08:22:36 +0000]
drm/ttm: powerpc: Fix Highmem cache flushing.

Temporarily maps highmem pages while flushing to get a valid virtual
address to flush.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agox86: Export kmap_atomic_prot() needed for TTM.
Thomas Hellstrom [Fri, 24 Jul 2009 07:57:33 +0000]
x86: Export kmap_atomic_prot() needed for TTM.

This functionality is needed to kmap_atomic() highmem pages that may
potentially have or are about to set up other mappings with
non-standard caching attributes.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agodrm/ttm: Fix ttm in-kernel copying of pages with non-standard caching attributes.
Thomas Hellstrom [Fri, 24 Jul 2009 07:57:34 +0000]
drm/ttm: Fix ttm in-kernel copying of pages with non-standard caching attributes.

For x86 this affected highmem pages only, since they were always kmapped
cache-coherent, and this is fixed using kmap_atomic_prot().

For other architectures that may not modify the linear kernel map we
resort to vmap() for now, since kmap_atomic_prot() generally uses the
linear kernel map for lowmem pages. This of course comes with a
performance impact and should be optimized when possible.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agodrm/ttm: Fix an oops and sync object leak.
Thomas Hellstrom [Tue, 21 Jul 2009 15:45:13 +0000]
drm/ttm: Fix an oops and sync object leak.

The code was potentially dereferencig a NULL sync object pointer.
At the same time a sync object reference was potentially leaked.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agodrm/radeon/kms: vram sizing on certain r100 chips needs workaround.
Dave Airlie [Tue, 21 Jul 2009 10:39:30 +0000]
drm/radeon/kms: vram sizing on certain r100 chips needs workaround.

If an rn50/r100/m6/m7 GPU has < 64MB RAM, i.e. 8/16/32, the
aperture used to calculate the MC_FB_LOCATION needs to be worked
out from the CONFIG_APER_SIZE register, and not the actual vram size.

TTM VRAM size was also being initialised wrong, use actual vram size
to initialise it.

Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agodrm/radeon: Pay more attention to object placement requested by userspace.
Michel Dänzer [Tue, 28 Jul 2009 10:30:57 +0000]
drm/radeon: Pay more attention to object placement requested by userspace.

Previously we were basically always setting the GTT and VRAM flags regardless of
what userspace requested.

Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agodrm/radeon: Fall back to evicting BOs with memcpy if necessary.
Michel Dänzer [Tue, 28 Jul 2009 10:30:56 +0000]
drm/radeon: Fall back to evicting BOs with memcpy if necessary.

Otherwise if there's no GTT space we would fail the eviction, leading to
cascaded failure.

Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agodrm/radeon: Don't unreserve twice on failure to validate.
Michel Dänzer [Tue, 28 Jul 2009 10:30:55 +0000]
drm/radeon: Don't unreserve twice on failure to validate.

This is done later in radeon_object_list_unvalidate(). Doing it twice triggers
a BUG in TTM, rendering X on KMS unusable until reboot.

Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agodrm/radeon/kms: fix bandwidth computation on avivo hardware
Jerome Glisse [Mon, 13 Jul 2009 19:04:08 +0000]
drm/radeon/kms: fix bandwidth computation on avivo hardware

Fix bandwidth computation and crtc priority in memory controller
so that crtc memory request are fullfill in time to avoid display
artifact.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agodrm/radeon/kms: add initial colortiling support.
Dave Airlie [Tue, 23 Jun 2009 23:48:08 +0000]
drm/radeon/kms: add initial colortiling support.

This adds new set/get tiling interfaces where the pitch
and macro/micro tiling enables can be set. Along with
a flag to decide if this object should have a surface when mapped.

The only thing we need to allocate with a mapped surface should be
the frontbuffer. Note rotate scanout shouldn't require one, and
back/depth shouldn't either, though mesa needs some fixes.

It fixes the TTM interfaces along Thomas's suggestions, and I've tested
the surface stealing code with two X servers and not seen any lockdep issues.

I've stopped tiling the fbcon frontbuffer, as I don't see there being
any advantage other than testing, I've left the testing commands in there,
just flip the fb_tiled to true in radeon_fb.c

Open: Can we integrate endian swapping in with this?

Future features:
texture tiling - need to relocate texture registers TXOFFSET* with tiling info.

This also merges Michel's cleanup surfaces regs at init time patch
even though it makes sense on its own, this patch really relies on it.

Some PowerMac firmwares set up a tiling surface at the beginning of VRAM
which messes us up otherwise.
that patch is:
Signed-off-by: Michel Dänzer <daenzer@vmware.com>

Signed-off-by: Dave Airlie <airlied@redhat.com>

11 years agoRemove zero-length file drivers/char/vr41xx_giu.c
Jeff Garzik [Wed, 29 Jul 2009 02:36:59 +0000]
Remove zero-length file drivers/char/vr41xx_giu.c

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agolibata: accept late unlocking of HPA
Tejun Heo [Wed, 15 Jul 2009 08:11:41 +0000]
libata: accept late unlocking of HPA

On certain configurations, HPA isn't or can't be unlocked during
probing but it somehow ends up unlocked afterwards.  In the following
thread, the problem can be reliably reproduced after resuming from
STR.  The BIOS turns on HPA during boot but forgets to do it during
resume.

  http://thread.gmane.org/gmane.linux.kernel/858310

This patch updates libata revalidation such that it considers native
n_sectors.  If the device size has increased to match native
n_sectors, it's assumed that HPA has been unlocked involuntarily and
the device is recognized as the same one.  This should be fairly safe
while nicely working around the problem.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Christof Warlich <christof@warlich.name>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agolibata: Updates and fixes for pata_at91 driver
Sergey Matyukevich [Thu, 16 Jul 2009 18:38:55 +0000]
libata: Updates and fixes for pata_at91 driver

Please consider the following updates and fixes for pata_at91 driver.

* Removed extra headers
Here we need only static memory controller properties, which are
contained in generic header at91sam9_smc.h.
No need to include any specific headers for at91sam9260 SoC.

* No harsh BUG_ON for get_clk in set_smc_timing function
        get_clk is now performed in driver probing function,
        probing fails if master clock is not available

* Fixed uint/ulong mess in calc_mck_cycles function

Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agoata_piix: Add new short cable ID
Steve Conklin [Thu, 16 Jul 2009 21:31:10 +0000]
ata_piix: Add new short cable ID

OriginalAuthor: Tony Espy <espy@canonical.com>
Signed-off-by: Steve Conklin <sconklin@canonical.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agoata_piix: Add new laptop short cable IDs
Steve Conklin [Thu, 16 Jul 2009 21:27:56 +0000]
ata_piix: Add new laptop short cable IDs

OriginalAuthor: Michael Frey <michael.frey@canonical.com>
Signed-off-by: Steve Conklin <sconklin@canonical.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agoahci: add device IDs for Ibex Peak ahci controllers
David Milburn [Wed, 22 Jul 2009 20:15:56 +0000]
ahci: add device IDs for Ibex Peak ahci controllers

Add device IDS for Ibex Peak SATA AHCI Controllers

Signed-off-by: Jaroslav Kysela <jkysela@redhat.com>
Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agolibata: remove superfluous NULL pointer checks
Bartlomiej Zolnierkiewicz [Sun, 26 Jul 2009 14:05:13 +0000]
libata: remove superfluous NULL pointer checks

host->ports[] always contain pointers to valid port structures since
a "dummy port" structure is used in case if there is no physical port.

This patch takes care of two entries from Dan's list:

drivers/ata/sata_sil.c +535 sil_interrupt(13) warning: variable derefenced before check 'ap'
drivers/ata/sata_mv.c +2517 mv_unexpected_intr(6) warning: variable derefenced before check 'ap'

and of another needless NULL pointer check in pata_octeon_cf.c.

Reported-by: Dan Carpenter <error27@gmail.com>
Cc: corbet@lwn.net
Cc: eteo@redhat.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agolibata: add missing NULL pointer check to ata_eh_reset()
Bartlomiej Zolnierkiewicz [Sun, 26 Jul 2009 14:21:01 +0000]
libata: add missing NULL pointer check to ata_eh_reset()

drivers/ata/libata-eh.c +2403 ata_eh_reset(80) warning: variable derefenced before check 'slave'

Please note that this is _not_ a real bug at the moment since ata_eh_context
structure is embedded into ata_list structure and the code alwas checks for
'slave' before accessing 'sehc'.

Anyway lets add missing check and always have a valid 'sehc' pointer (which
makes code easier to understand and prevents introducing some possible bugs
in the future).

Reported-by: Dan Carpenter <error27@gmail.com>
Cc: corbet@lwn.net
Cc: eteo@redhat.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agopata_pcmcia: add CNF-CDROM-ID
Wolfram Sang [Sun, 26 Jul 2009 16:27:29 +0000]
pata_pcmcia: add CNF-CDROM-ID

Fixes this report:
http://article.gmane.org/gmane.linux.kernel.pcmcia.devel/2228/

Reported-by: John McGrath <john@john-mcgrath.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agoUSB: xhci: Stall handling bug fixes.
Sarah Sharp [Mon, 27 Jul 2009 19:05:21 +0000]
USB: xhci: Stall handling bug fixes.

Correct the xHCI code to handle stalls on USB endpoints.  We need to move
the endpoint ring's dequeue pointer past the stalled transfer, or the HW
will try to restart the transfer the next time the doorbell is rung.

Don't attempt to clear a halt on an endpoint if we haven't seen a stalled
transfer for it.  The USB core will attempt to clear a halt on all
endpoints when it selects a new configuration.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelv...
Linus Torvalds [Tue, 28 Jul 2009 21:31:13 +0000]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/jdelvare/staging

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: (asus_atk0110) Fix upper limit readings
  hwmon: (smsc47m1) Differentiate between LPC47M233 and LPC47M292

11 years agoUSB: xhci: Support for 64-byte contexts
John Youn [Mon, 27 Jul 2009 19:05:15 +0000]
USB: xhci: Support for 64-byte contexts

Adds support for controllers that use 64-byte contexts.  The following context
data structures are affected by this: Device, Input, Input Control, Endpoint,
and Slot.  To accommodate the use of either 32 or 64-byte contexts, a Device or
Input context can only be accessed through functions which look-up and return
pointers to their contained contexts.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Always align output device contexts to 64 bytes.
Sarah Sharp [Mon, 27 Jul 2009 19:05:08 +0000]
USB: xhci: Always align output device contexts to 64 bytes.

Make sure the xHCI output device context is 64-byte aligned.  Previous
code was using the same structure for both the output device context and
the input control context.  Since the structure had 32 bytes of flags
before the device context, the output device context wouldn't be 64-byte
aligned.  Define a new structure to use for the output device context and
clean up the debugging for these two structures.

The copy of the device context in the input control context does *not*
need to be 64-byte aligned.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Scratchpad buffer allocation
John Youn [Mon, 27 Jul 2009 19:05:03 +0000]
USB: xhci: Scratchpad buffer allocation

Allocates and initializes the scratchpad buffer array (XHCI 4.20).  This is an
array of 64-bit DMA addresses to scratch pages that the controller may use
during operation.  The number of pages is specified in the "Max Scratchpad
Buffers" field of HCSPARAMS2.  The DMA address of this array is written into
slot 0 of the DCBAA.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: Fix parsing of SuperSpeed Endpoint Companion descriptor.
Sarah Sharp [Mon, 27 Jul 2009 19:04:52 +0000]
USB: Fix parsing of SuperSpeed Endpoint Companion descriptor.

usb_parse_ss_endpoint_companion() was supposed to allocate a structure to
hold the SuperSpeed Endpoint Companion descriptor, and either copy the
values the device returned, or fill in default values if the device
descriptor did not include the companion descriptor.

However, the previous code would miss the last endpoint in a configuration
with no descriptors after it.  Make usb_parse_endpoint() allocate the SS
endpoint companion descriptor and fill it with default values, even if
we've run out of buffer space in this configuration descriptor.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Fail gracefully if there's no SS ep companion descriptor.
Sarah Sharp [Mon, 27 Jul 2009 19:04:38 +0000]
USB: xhci: Fail gracefully if there's no SS ep companion descriptor.

This is a work around for a bug in the SuperSpeed Endpoint Companion Descriptor
parsing code.  It fails in some corner cases, which means ep->ss_ep_comp may be
NULL.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Handle babble errors on transfers.
Sarah Sharp [Mon, 27 Jul 2009 19:04:32 +0000]
USB: xhci: Handle babble errors on transfers.

Pass back a babble error when this error code is seen in the transfer event TRB.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Setup HW retries correctly.
Sarah Sharp [Mon, 27 Jul 2009 19:04:27 +0000]
USB: xhci: Setup HW retries correctly.

The xHCI host controller can be programmed to retry a transfer a certain number
of times per endpoint before it passes back an error condition to the host
controller driver.  The xHC will return an error code when the error count
transitions from 1 to 0.  Programming an error count of 3 means the xHC tries
the transfer 3 times, programming it with a 1 means it tries to transfer once,
and programming it with 0 means the HW tries the transfer infinitely.

We want isochronous transfers to only be tried once, so set the error count to
one.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Check if the host controller died in IRQ handler.
Sarah Sharp [Mon, 27 Jul 2009 19:04:01 +0000]
USB: xhci: Check if the host controller died in IRQ handler.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Don't oops if the host doesn't halt.
Sarah Sharp [Mon, 27 Jul 2009 19:03:50 +0000]
USB: xhci: Don't oops if the host doesn't halt.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Make debugging more verbose.
Sarah Sharp [Mon, 27 Jul 2009 19:03:46 +0000]
USB: xhci: Make debugging more verbose.

Add more debugging to the irq handler, slot context initialization, ring
operations, URB cancellation, and MMIO writes.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Correct Event Handler Busy flag usage.
Sarah Sharp [Mon, 27 Jul 2009 19:03:40 +0000]
USB: xhci: Correct Event Handler Busy flag usage.

The Event Handler Busy bit in the event ring dequeue pointer is write 1 to
clear.  Fix the interrupt service routine to clear that bit after the
event handler has run.

xhci_set_hc_event_deq() is designed to update the event ring dequeue pointer
without changing any of the four reserved bits in the lower nibble.  The event
handler busy (EHB) bit is write one to clear, so the new value must always
contain a zero in that bit in order to preserve the EHB value.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Handle short control packets correctly.
Sarah Sharp [Mon, 27 Jul 2009 19:03:36 +0000]
USB: xhci: Handle short control packets correctly.

When there is a short packet on a control transfer, the xHCI host controller
hardware will generate two events.  The first event will be for the data stage
TD with a completion code for a short packet.  The second event will be for the
status stage with a successful completion code.  Before this patch, the xHCI
driver would giveback the short control URB when it received the event for the
data stage TD.  Then it would become confused when it saw a status stage event
for the endpoint for an URB it had already finished processing.

Change the xHCI host controller driver to wait for the status stage event when
it receives a short transfer completion code for a data stage TD.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Represent 64-bit addresses with one u64.
Sarah Sharp [Mon, 27 Jul 2009 19:03:31 +0000]
USB: xhci: Represent 64-bit addresses with one u64.

There are several xHCI data structures that use two 32-bit fields to
represent a 64-bit address.  Since some architectures don't support 64-bit
PCI writes, the fields need to be written in two 32-bit writes.  The xHCI
specification says that if a platform is incapable of generating 64-bit
writes, software must write the low 32-bits first, then the high 32-bits.
Hardware that supports 64-bit addressing will wait for the high 32-bit
write before reading the revised value, and hardware that only supports
32-bit writes will ignore the high 32-bit write.

Previous xHCI code represented 64-bit addresses with two u32 values.  This
lead to buggy code that would write the 32-bits in the wrong order, or
forget to write the upper 32-bits.  Change the two u32s to one u64 and
create a function call to write all 64-bit addresses in the proper order.
This new function could be modified in the future if all platforms support
64-bit writes.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Use GFP_ATOMIC while holding spinlocks.
Sarah Sharp [Mon, 27 Jul 2009 19:03:23 +0000]
USB: xhci: Use GFP_ATOMIC while holding spinlocks.

The xHCI functions to queue an URB onto the hardware rings must be called
with the xhci spinlock held.  Those functions will allocate memory, and
take a gfp_t memory flags argument.  We must pass them the GFP_ATOMIC
flag, since we don't want the memory allocation to attempt to sleep while
waiting for more memory to become available.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Deal with stalled endpoints.
Sarah Sharp [Mon, 27 Jul 2009 19:03:15 +0000]
USB: xhci: Deal with stalled endpoints.

When an endpoint on a device under an xHCI host controller stalls, the
host controller driver must let the hardware know that the USB core has
successfully cleared the halt condition.  The HCD submits a Reset Endpoint
Command, which will clear the toggle bit for USB 2.0 devices, and set the
sequence number to zero for USB 3.0 devices.

The xHCI urb_enqueue will accept new URBs while the endpoint is halted,
and will queue them to the hardware rings.  However, the endpoint doorbell
will not be rung until the Reset Endpoint Command completes.

Don't queue a reset endpoint command for root hubs.  khubd clears halt
conditions on the roothub during the initialization process, but the roothub
isn't a real device, so the xHCI host controller doesn't need to know about the
cleared halt.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: Set TD size in transfer TRB.
Sarah Sharp [Mon, 27 Jul 2009 19:03:07 +0000]
USB: xhci: Set TD size in transfer TRB.

The 0.95 xHCI specification requires software to set the "TD size" field
in each transaction request block (TRB).  This field gives the host
controller an indication of how much data is remaining in the TD
(including the buffer in the current TRB).  Set this field in bulk TRBs
and data stage TRBs for control transfers.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: xhci: fix less- and greater than confusion
Roel Kluin [Sun, 12 Jul 2009 22:23:47 +0000]
USB: xhci: fix less- and greater than confusion

Without this change the loops won't start

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: usbtest: no need for USB_DEVICEFS
Alan Stern [Tue, 28 Jul 2009 15:56:17 +0000]
USB: usbtest: no need for USB_DEVICEFS

THis patch (as1270) allows the usbtest module to be built even when
USB_DEVICEFS isn't configured.  Tests can be performed without
USB_DEVICEFS, using the /dev/bus/usb/*/* device files.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: musb: fix CONFIGDATA register read issue
Ajay Kumar Gupta [Mon, 27 Jul 2009 21:32:15 +0000]
USB: musb: fix CONFIGDATA register read issue

INDEX register has to be set to '0' before reading
CONFIGDATA register which is only present in TI musb
platforms.

Currently the default register access mode is set to
FLAT_MODE thus INDEX register is not getting set
properly with musb_ep_select() which is just a nop
operation in FLAT_MODE.This invalid register read is
causing module reinset failure.

Fixing the issue by moving INDEX register write part to
musb_read_configdata() function itself.

Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: musb: Refer to musb_otg_timer_func under correct #ifdef
Amit Kucheria [Mon, 27 Jul 2009 09:03:19 +0000]
USB: musb: Refer to musb_otg_timer_func under correct #ifdef

musb_otg_timer_func() is defined under #ifdef CONFIG_USB_MUSB_OTG.
Make sure any reference to it is also under the same #ifdef.

Without this fix, the driver failes to compile when USB_OTG is defined
but USB_MUSB_OTG isn't.

Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: musb_gadget_ep0: fix typo in service_zero_data_request()
Sergei Shtylyov [Fri, 17 Jul 2009 14:30:03 +0000]
USB: musb_gadget_ep0: fix typo in service_zero_data_request()

This function uses wrong bit mask to prevent clearing RXCSR status
bits when halting an endpoint -- which results in clearing SentStall
and RxPktRdy bits (that the code actually tries to avoid); must be
a result of cut-and-paste...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: option.c to support Alcatel X060S/X200 broadband modems
Javier Martin [Thu, 23 Jul 2009 02:03:43 +0000]
USB: option.c to support Alcatel X060S/X200 broadband modems

Added support for the Alcatel X060S/X200 broadband modems to the option
driver. The device starts in cd-rom emulation mode (1bbb:f000) and
requires the use of the usb_modeswitch tool to switch it to modem mode
(1bbb:0000).

Signed-off-by: Javier Martin <jmartinj@iname.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: serial: option: Add ZTE AC8710 usb modem device.
Peng Huang [Wed, 22 Jul 2009 09:54:48 +0000]
USB: serial: option: Add ZTE AC8710 usb modem device.

Signed-off-by: Peng Huang <shawn.p.huang@gmail.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: aten uc2324 is really a moschip 7840
Russell Lang [Fri, 17 Jul 2009 09:29:20 +0000]
USB: aten uc2324 is really a moschip 7840

I've opened up the case, and the chips in the ATEN UC2324 are:

Moschip
MCS7840CV-AA
69507-6B1
0650
(USB to 4-port serial)

(logo with AF kerned together)  0748
24BC02
SINGLP
(unknown 8-pin chip)

(logo looks like 3 or Z in circle)
ZT3243LEEA    0752
B7A16420.T
(4 chips, so this will be RS232 line driver)
(Probably equivalent of Sipex SP3243)

So the ATEN 2324 (aten2011.c driver), is definitely the Moschip 7840,
and should use the mos7840.c driver.  I expect you will remove the
aten2011.c driver from the staging area.

From the aten2011.c source code, the device ID for the UC2322 (2 port
serial) is 0x7820, just like the Moschip evaluation board.  This value
should be added to the device id table of mos7840.c.

Here's a patch that adds these devices to the driver.

From: Russell Lang <gsview@ghostgum.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: option: Add USB ID for Novatel MC727/U727/USB727 refresh
Tim Gardner [Fri, 17 Jul 2009 13:55:36 +0000]
USB: option: Add USB ID for Novatel MC727/U727/USB727 refresh

BugLink: https://bugs.launchpad.net/bugs/365291

Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: option: add ZTE device ids and remove ONDA ids
Herton Ronaldo Krzesinski [Wed, 15 Jul 2009 20:10:26 +0000]
USB: option: add ZTE device ids and remove ONDA ids

Current listed Onda ids are ZTE devices. Replace them with ZTE id define
and add more ZTE device ids. Also remove 19d2:2000, this is the id when
device is first plugged in and is a CD-only device, before the switch
using eject.

These changes are based on a previous patch by Ming Zhao
<zhao.ming9@zte.com.cn>

Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Cc: Ming Zhao <zhao.ming9@zte.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: ehci-orion: Call ehci_reset before ehci_halt
Simon Kagstrom [Mon, 13 Jul 2009 06:25:09 +0000]
USB: ehci-orion: Call ehci_reset before ehci_halt

I noticed that USB initialization didn't setup correctly on my kirkwood
based board (OpenRD base) if I hadn't initialized USB in U-boot first.
The error message looks like this:

  ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
  orion-ehci orion-ehci.0: Marvell Orion EHCI
  orion-ehci orion-ehci.0: new USB bus registered, assigned bus number 1
  orion-ehci orion-ehci.0: can't setup
  orion-ehci orion-ehci.0: USB bus 1 deregistered
  orion-ehci orion-ehci.0: init orion-ehci.0 fail, -110
  orion-ehci: probe of orion-ehci.0 failed with error -110

which is caused by ehci_halt() timing out in the handshake() call. I
noticed that U-boot does a reset before calling handshake(), so this
patch does the same thing for Linux. USB now works for me.

Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Acked-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: CP210x Add new device IDs
Craig Shelley [Sun, 12 Jul 2009 20:52:33 +0000]
USB: CP210x Add new device IDs

Signed-off-by: Craig Shelley <craig@microtron.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: ftdi_sio: Add support for GN Otometrics Aurical USB Audiometer
Ville Sundberg [Tue, 14 Jul 2009 21:27:28 +0000]
USB: ftdi_sio: Add support for GN Otometrics Aurical USB Audiometer

The patch adds support for the GN Otometrics Aurical USB Audiometer
(FT232BM-based).
A new VID and a new PID is added.

Signed-off-by: Ville Sundberg <vsundber@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: OMAP: OHCI: hc_driver's stop method should call ohci_stop
Anand Gadiyar [Tue, 14 Jul 2009 11:11:00 +0000]
USB: OMAP: OHCI: hc_driver's stop method should call ohci_stop

OMAP: OHCI: hc_driver's stop method should call ohci_stop

Without this, the ohci-omap driver will not cleanup the debugfs
nodes when the driver is unloaded. So the next insmod will fail,
if CONFIG_DEBUG_FS and CONFIG_USB_DEBUG are both selected.

Reported-by: vikram pandita <vikram.pandita@ti.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: storage: raise timeout in usb_stor_Bulk_max_lun
Giacomo Lozito [Mon, 13 Jul 2009 21:23:33 +0000]
USB: storage: raise timeout in usb_stor_Bulk_max_lun

Requests to get max LUN, for certain USB storage devices, require a
longer timeout before a correct reply is returned. This happens for a
Realtek USB Card Reader (0bda:0152), which has a max LUN of 3 but is set
to 0, thus losing functionality, because of the timeout occurring too
quickly.

Raising the timeout value fixes the issue and might help other devices
to return a correct max LUN value as well.

Signed-off-by: Giacomo Lozito <james@develia.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: let the option driver compile without CONFIG_PM
Oliver Neukum [Mon, 13 Jul 2009 21:24:10 +0000]
USB: let the option driver compile without CONFIG_PM

This is needed for compilation without CONFIG_PM.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: option: Remove unused variable
Carlos R. Mafra [Mon, 13 Jul 2009 19:45:03 +0000]
USB: option: Remove unused variable

After commit f092c240494f2d807401d93f95f683909b90af96 ("USB: option:
remove unnecessary and erroneous code") the variable 'serial' becomes
unused, as gcc-4.3.2 points out:

drivers/usb/serial/option.c: In function 'option_instat_callback':
drivers/usb/serial/option.c:834: warning: unused variable 'serial'
drivers/usb/serial/option.c: In function 'option_open':
drivers/usb/serial/option.c:930: warning: unused variable 'serial'

So I removed it.

Signed-off-by: Carlos R. Mafra <crmafra@aei.mpg.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoMerge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvar...
Linus Torvalds [Tue, 28 Jul 2009 21:31:02 +0000]
Merge branch 'i2c-for-linus' of git://git./linux/kernel/git/jdelvare/staging

* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c/tsl2550: Fix lux value in dark environment

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
Linus Torvalds [Tue, 28 Jul 2009 21:27:06 +0000]
Merge git://git./linux/kernel/git/mason/btrfs-unstable

* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (22 commits)
  Btrfs: Fix async caching interaction with unmount
  Btrfs: change how we unpin extents
  Btrfs: Correct redundant test in add_inode_ref
  Btrfs: find smallest available device extent during chunk allocation
  Btrfs: clear all space_info->full after removing a block group
  Btrfs: make flushoncommit mount option correctly wait on ordered_extents
  Btrfs: Avoid delayed reference update looping
  Btrfs: Fix ordering of key field checks in btrfs_previous_item
  Btrfs: find_free_dev_extent doesn't handle holes at the start of the device
  Btrfs: Remove code duplication in comp_keys
  Btrfs: async block group caching
  Btrfs: use hybrid extents+bitmap rb tree for free space
  Btrfs: Fix crash on read failures at mount
  Btrfs: remove of redundant btrfs_header_level
  Btrfs: adjust NULL test
  Btrfs: Remove broken sanity check from btrfs_rmap_block()
  Btrfs: convert nested spin_lock_irqsave to spin_lock
  Btrfs: make sure all dirty blocks are written at commit time
  Btrfs: fix locking issue in btrfs_find_next_key
  Btrfs: fix double increment of path->slots[0] in btrfs_next_leaf
  ...

11 years agomISDN: Fix handling of receive buffer size in L1oIP
Andreas Eversberg [Mon, 27 Jul 2009 17:24:04 +0000]
mISDN: Fix handling of receive buffer size in L1oIP

The size of receive buffer pointer was used to get size of
receive buffer instead of recvbuf_size itself, so only 4/8
bytes could be transfered.

This is a regression to 2.6.30 introduced by commit
8c90e11e3543d7de612194a042a148caeaab5f1d ("mISDN: Use
kernel_{send,recv}msg instead of open coding")

Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoeCryptfs: parse_tag_3_packet check tag 3 packet encrypted key size
Ramon de Carvalho Valle [Tue, 28 Jul 2009 18:58:22 +0000]
eCryptfs: parse_tag_3_packet check tag 3 packet encrypted key size

The parse_tag_3_packet function does not check if the tag 3 packet contains a
encrypted key size larger than ECRYPTFS_MAX_ENCRYPTED_KEY_BYTES.

Signed-off-by: Ramon de Carvalho Valle <ramon@risesecurity.org>
[tyhicks@linux.vnet.ibm.com: Added printk newline and changed goto to out_free]
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Cc: stable@kernel.org (2.6.27 and 30)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoeCryptfs: Check Tag 11 literal data buffer size
Tyler Hicks [Tue, 28 Jul 2009 18:57:01 +0000]
eCryptfs: Check Tag 11 literal data buffer size

Tag 11 packets are stored in the metadata section of an eCryptfs file to
store the key signature(s) used to encrypt the file encryption key.
After extracting the packet length field to determine the key signature
length, a check is not performed to see if the length would exceed the
key signature buffer size that was passed into parse_tag_11_packet().

Thanks to Ramon de Carvalho Valle for finding this bug using fsfuzzer.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Cc: stable@kernel.org (2.6.27 and 30)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agostaging: udlfb: Add vmalloc.h include
Amit Kucheria [Mon, 27 Jul 2009 09:01:03 +0000]
staging: udlfb: Add vmalloc.h include

Required for vmalloc_32 and vfree declarations on non-x86 platforms.

Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agostaging: remove aten2011 driver
Greg Kroah-Hartman [Mon, 20 Jul 2009 06:37:32 +0000]
staging: remove aten2011 driver

This driver is not needed, as the existing mos7840 driver works
properly for this device.

Thanks to Russell Lang for doing the work to figure this out.

Cc: Russell Lang <gsview@ghostgum.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoStaging: android: lowmemorykiller.c: fix it for "oom: move oom_adj value from task_st...
David Rientjes [Tue, 16 Jun 2009 23:42:53 +0000]
Staging: android: lowmemorykiller.c: fix it for "oom: move oom_adj value from task_struct to mm_struct"

I'm about to merge "oom: move oom_adj value from task_struct to
mm_struct", and this fixup is needed to repair linux-next's
drivers/staging/android/lowmemorykiller.c.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoStaging: serqt_usb2: fix memory leak in error case
Oliver Neukum [Mon, 13 Jul 2009 08:46:57 +0000]
Staging: serqt_usb2: fix memory leak in error case

a standard memory leak, as later allocations may fail even if prior
allocations did not. Then the prior allocations must be undone.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoStaging: serqt_usb2: add missing calls to tty_kref_put()
Bill Pemberton [Tue, 14 Jul 2009 19:33:52 +0000]
Staging: serqt_usb2: add missing calls to tty_kref_put()

tty_port_tty_get() was called without a corresponding tty_kref_put()
in qt_read_bulk_callback() and qt_close().

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agodriver core: documentation: make it clear that sysfs is optional
Lucian Adrian Grijincu [Mon, 27 Jul 2009 16:06:42 +0000]
driver core: documentation: make it clear that sysfs is optional

The original text suggested that sysfs is mandatory and always
compiled in the kernel.

Signed-off-by: Lucian Adrian Grijincu <lgrijincu@ixiacom.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agodriver core: sysdev: do not send KOBJ_ADD uevent if kobject_init_and_add fails
Xiaotian Feng [Fri, 24 Jul 2009 09:31:41 +0000]
driver core: sysdev: do not send KOBJ_ADD uevent if kobject_init_and_add fails

If kobject_init_and_add fails, sysdev_register should not send KOBJ_ADD
uevent to userspace.

Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoDynamic debug: fix typo: -/->
Roel Kluin [Wed, 15 Jul 2009 18:29:07 +0000]
Dynamic debug: fix typo: -/->

The member was intended, not the local variable.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Greg Banks <gnb@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agodriver core: firmware_class:fix memory leak of page pointers array
Ming Lei [Sat, 11 Jul 2009 03:11:10 +0000]
driver core: firmware_class:fix memory leak of page pointers array

The page pointers array is allocated in fw_realloc_buffer() called by
firmware_data_write(), and should be freed in release function of firmware
device.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Reported-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agosysfs: fix hardlink count on device_move
Peter Oberparleiter [Tue, 14 Jul 2009 15:56:15 +0000]
sysfs: fix hardlink count on device_move

Update directory hardlink count when moving kobjects to a new parent.
Fixes the following problem which occurs when several devices are
moved to the same parent and then unregistered:

> ls -laF /sys/devices/css0/defunct/
> total 0
> drwxr-xr-x 4294967295 root root    0 2009-07-14 17:02 ./
> drwxr-xr-x        114 root root    0 2009-07-14 17:02 ../
> drwxr-xr-x          2 root root    0 2009-07-14 17:01 power/
> -rw-r--r--          1 root root 4096 2009-07-14 17:01 uevent

Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoi2c/tsl2550: Fix lux value in dark environment
Michele Jr De Candia [Tue, 28 Jul 2009 14:33:03 +0000]
i2c/tsl2550: Fix lux value in dark environment

I've tested TSL2550 driver and I've found a bug: when light is off,
returned value from tsl2550_calculate_lux function is -1 when it should
be 0 (sensor correctly read that light was off).

I think the bug is that a zero c0 value (approximated value of ch0) is
misinterpreted as an error.

Signed-off-by: Michele Jr De Candia <michele.decandia@valueteam.com>
Acked-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

11 years agohwmon: (asus_atk0110) Fix upper limit readings
Luca Tettamanti [Tue, 28 Jul 2009 14:31:39 +0000]
hwmon: (asus_atk0110) Fix upper limit readings

On newer Asus boards the "upper" limit of a sensor is encoded as
delta from the "lower" limit. Fix the driver to correctly handle
this case.

Signed-off-by: Luca Tettamanti <kronos.it@gmail.com>
Tested-by: Alex Macfarlane Smith <nospam@archifishal.co.uk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

11 years agohwmon: (smsc47m1) Differentiate between LPC47M233 and LPC47M292
Jean Delvare [Tue, 28 Jul 2009 14:31:39 +0000]
hwmon: (smsc47m1) Differentiate between LPC47M233 and LPC47M292

The SMSC LPC47M233 and LPC47M292 chips have the same device ID but
are not compatible.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Juerg Haefliger <juergh@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>