openwrt/staging/blogic.git
16 years agosched: fix race in schedule()
Hiroshi Shimamoto [Mon, 10 Mar 2008 18:01:20 +0000 (11:01 -0700)]
sched: fix race in schedule()

Fix a hard to trigger crash seen in the -rt kernel that also affects
the vanilla scheduler.

There is a race condition between schedule() and some dequeue/enqueue
functions; rt_mutex_setprio(), __setscheduler() and sched_move_task().

When scheduling to idle, idle_balance() is called to pull tasks from
other busy processor. It might drop the rq lock. It means that those 3
functions encounter on_rq=0 and running=1. The current task should be
put when running.

Here is a possible scenario:

   CPU0                               CPU1
    |                              schedule()
    |                              ->deactivate_task()
    |                              ->idle_balance()
    |                              -->load_balance_newidle()
rt_mutex_setprio()                     |
    |                              --->double_lock_balance()
    *get lock                          *rel lock
    * on_rq=0, ruuning=1               |
    * sched_class is changed           |
    *rel lock                          *get lock
    :                                  |
                                       :
                                   ->put_prev_task_rt()
                                   ->pick_next_task_fair()
                                       => panic

The current process of CPU1(P1) is scheduling. Deactivated P1, and the
scheduler looks for another process on other CPU's runqueue because CPU1
will be idle. idle_balance(), load_balance_newidle() and
double_lock_balance() are called and double_lock_balance() could drop
the rq lock. On the other hand, CPU0 is trying to boost the priority of
P1. The result of boosting only P1's prio and sched_class are changed to
RT. The sched entities of P1 and P1's group are never put. It makes
cfs_rq invalid, because the cfs_rq has curr and no leaf, but
pick_next_task_fair() is called, then the kernel panics.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
Linus Torvalds [Fri, 14 Mar 2008 23:49:41 +0000 (16:49 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ieee1394/linux1394-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: fw-ohci: shut up false compiler warning on PPC32
  firewire: fw-ohci: use dma_alloc_coherent for ar_buffer
  ieee1394: sbp2: fix for SYM13FW500 bridge (Datafab disk)
  firewire: fw-sbp2: fix for SYM13FW500 bridge (Datafab disk)
  firewire: update Kconfig help text
  firewire: warn on fatal condition in topology code
  firewire: fw-sbp2: set single-phase retry_limit
  firewire: fw-ohci: Apple UniNorth 1st generation support
  firewire: fw-ohci: PPC PMac platform code
  firewire: endianess annotations
  firewire: endianess fix

16 years agonfsd: fix oops on access from high-numbered ports
J. Bruce Fields [Fri, 14 Mar 2008 23:37:11 +0000 (19:37 -0400)]
nfsd: fix oops on access from high-numbered ports

This bug was always here, but before my commit 6fa02839bf9412e18e77
("recheck for secure ports in fh_verify"), it could only be triggered by
failure of a kmalloc().  After that commit it could be triggered by a
client making a request from a non-reserved port for access to an export
marked "secure".  (Exports are "secure" by default.)

The result is a struct svc_export with a reference count one too low,
resulting in likely oopses next time the export is accessed.

The reference counting here is not straightforward; a later patch will
clean up fh_verify().

Thanks to Lukas Hejtmanek for the bug report and followup.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Cc: Lukas Hejtmanek <xhejtman@ics.muni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agostruct export_operations: adjust comments to match current members
Marc Dionne [Fri, 14 Mar 2008 13:11:29 +0000 (13:11 +0000)]
struct export_operations: adjust comments to match current members

The comments in the definition of struct export_operations don't match the
current members.

Add a comment for the 2 new functions and remove 2 comments for unused ones.

Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofirewire: fw-ohci: shut up false compiler warning on PPC32
Stefan Richter [Thu, 13 Mar 2008 23:27:49 +0000 (00:27 +0100)]
firewire: fw-ohci: shut up false compiler warning on PPC32

Shut up "may be used uninitialised in this function" warnings due to
PPC32's implementation of dma_alloc_coherent().

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
16 years agofirewire: fw-ohci: use dma_alloc_coherent for ar_buffer
Jarod Wilson [Wed, 12 Mar 2008 21:43:26 +0000 (17:43 -0400)]
firewire: fw-ohci: use dma_alloc_coherent for ar_buffer

Currently, we do nothing to guarantee we have a consistent DMA buffer for
asynchronous receive packets. Rather than doing several sync's following a
dma_map_single() to get consistent buffers, just switch to using
dma_alloc_coherent().

Resolves constant buffer failures on my own x86_64 laptop w/4GB of RAM and
likely to fix a number of other failures witnessed on x86_64 systems with
4GB of RAM or more.

Signed-off-by: Jarod Wilson <jwilson@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
16 years agoieee1394: sbp2: fix for SYM13FW500 bridge (Datafab disk)
Stefan Richter [Tue, 11 Mar 2008 21:32:52 +0000 (22:32 +0100)]
ieee1394: sbp2: fix for SYM13FW500 bridge (Datafab disk)

Fix I/O errors due to SYM13FW500's inability to handle larger request
sizes.  Reported by Piergiorgio Sartor <piergiorgio.sartor@nexgo.de> for
firewire-sbp2 in https://bugzilla.redhat.com/show_bug.cgi?id=436879

This fix is necessary because sbp2's default request size limit has been
lifted since 2.6.25-rc1.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jarod Wilson <jwilson@redhat.com>
16 years agofirewire: fw-sbp2: fix for SYM13FW500 bridge (Datafab disk)
Stefan Richter [Tue, 11 Mar 2008 21:32:03 +0000 (22:32 +0100)]
firewire: fw-sbp2: fix for SYM13FW500 bridge (Datafab disk)

Fix I/O errors due to SYM13FW500's inability to handle larger request
sizes.  Reported by Piergiorgio Sartor <piergiorgio.sartor@nexgo.de> in
https://bugzilla.redhat.com/show_bug.cgi?id=436879

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jarod Wilson <jwilson@redhat.com>
16 years agofirewire: update Kconfig help text
Stefan Richter [Sat, 8 Mar 2008 23:27:20 +0000 (00:27 +0100)]
firewire: update Kconfig help text

Remove some less necessary information, point out that video1394 and
dv1394 should be blacklisted along with ohci1394.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
16 years agofirewire: warn on fatal condition in topology code
Stefan Richter [Sat, 8 Mar 2008 21:38:16 +0000 (22:38 +0100)]
firewire: warn on fatal condition in topology code

If this ever happens to anybody, we want to have it in his log.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
16 years agofirewire: fw-sbp2: set single-phase retry_limit
Jarod Wilson [Fri, 7 Mar 2008 06:43:01 +0000 (01:43 -0500)]
firewire: fw-sbp2: set single-phase retry_limit

Per the SBP-2 specification, all SBP-2 target devices must have a BUSY_TIMEOUT
register. Per the 1394-1995 specification, the retry_limt portion of the
register should be set to 0x0 initially, and set on the target by a logged in
initiator (i.e., a Linux host w/firewire controller(s)).

Well, as it turns out, lots of devices these days have actually moved on to
starting to implement SBP-3 compliance, which says that retry_limit should
default to 0xf instead (yes, SBP-3 stomps directly on 1394-1995, oops).

Prior to this change, the firewire driver stack didn't touch retry_limit, and
any SBP-3 compliant device worked fine, while SBP-2 compliant ones were unable
to retransmit when the host returned an ack_busy_X, which resulted in stalled
out I/O, eventually causing the SCSI layer to give up and offline the device.

The simple fix is for us to set retry_limit to 0xf in the register for all
devices (which actually matches what the old ieee1394 stack did).

Prior to this change, a hard disk behind an SBP-2 Prolific PL-3507 bridge chip
would routinely encounter buffer I/O errors and wind up offlined by the SCSI
layer. With this change, I've encountered zero I/O failures moving tens of GB
of data around.

Signed-off-by: Jarod Wilson <jwilson@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
16 years agofirewire: fw-ohci: Apple UniNorth 1st generation support
Stefan Richter [Sat, 1 Mar 2008 01:47:15 +0000 (02:47 +0100)]
firewire: fw-ohci: Apple UniNorth 1st generation support

Mostly copied from ohci1394.c.  Necessary for some older Macs, e.g.
PowerBook G3 Pismo and early PowerBook G4 Titanium.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
16 years agofirewire: fw-ohci: PPC PMac platform code
Stefan Richter [Sat, 1 Mar 2008 01:42:56 +0000 (02:42 +0100)]
firewire: fw-ohci: PPC PMac platform code

Copied from ohci1394.c.  This code is necessary to prevent machine check
exceptions when reloading or resuming the driver.

Tested on a 1st generation PowerBook G4 Titanium, which also needs the
pci_probe() hunk.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
I was able to reproduce the system exception on resume with a 3rd-gen
Titanium PowerBook G4 667, and this patch does let the system resume
successfully now.

Not quite clear if there was possibly an updated version coming using
pci_enable_device() instead of the pair of pmac_call_feature() calls,
but either way, this is a definite must-have, at least for older ppc
macs -- my Aluminum PowerBook G4/1.67 suspends and resumes without this
patch just fine.

Signed-off-by: Jarod Wilson <jwilson@redhat.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
16 years agofirewire: endianess annotations
Stefan Richter [Sat, 23 Feb 2008 11:24:57 +0000 (12:24 +0100)]
firewire: endianess annotations

Kills warnings from 'make C=1 CHECKFLAGS="-D__CHECK_ENDIAN__" modules':

drivers/firewire/fw-transaction.c:771:10: warning: incorrect type in assignment (different base types)
drivers/firewire/fw-transaction.c:771:10:    expected unsigned int [unsigned] [usertype] <noident>
drivers/firewire/fw-transaction.c:771:10:    got restricted unsigned int [usertype] <noident>
drivers/firewire/fw-transaction.h:93:10: warning: incorrect type in assignment (different base types)
drivers/firewire/fw-transaction.h:93:10:    expected unsigned int [unsigned] [usertype] <noident>
drivers/firewire/fw-transaction.h:93:10:    got restricted unsigned int [usertype] <noident>
drivers/firewire/fw-ohci.c:1490:8: warning: restricted degrades to integer
drivers/firewire/fw-ohci.c:1490:35: warning: restricted degrades to integer
drivers/firewire/fw-ohci.c:1516:5: warning: cast to restricted type

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jarod Wilson <jwilson@redhat.com>
16 years agofirewire: endianess fix
Stefan Richter [Sat, 23 Feb 2008 11:24:17 +0000 (12:24 +0100)]
firewire: endianess fix

The generation of incoming requests was filled in in wrong byte order on
machines with big endian CPU.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jarod Wilson <jwilson@redhat.com>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Thu, 13 Mar 2008 20:25:32 +0000 (13:25 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IPoIB: Allocate priv->tx_ring with vmalloc()
  IPoIB/cm: Set tx_wr.num_sge in connected mode post_send()
  IPoIB: Don't drop multicast sends when they can be queued
  IB/ipath: Reset the retry counter for RDMA_READ_RESPONSE_MIDDLE packets
  IB/ipath: Fix error completion put on send CQ instead of recv CQ
  IB/ipath: Fix RC QP initialization
  IB/ipath: Fix potentially wrong RNR retry counter returned in ipath_query_qp()
  IB/ipath: Fix IB compliance problems with link state vs physical state

16 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
Linus Torvalds [Thu, 13 Mar 2008 20:17:25 +0000 (13:17 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/djbw/async_tx

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
  async_tx: checkpatch says s/__FUNCTION__/__func__/g
  iop-adma.c: replace remaining __FUNCTION__ occurrences
  fsldma: Add a completed cookie updated action in DMA finish interrupt.
  fsldma: Add device_prep_dma_interrupt support to fsldma.c
  dmaengine: Fix a bug about BUG_ON() on DMA engine capability DMA_INTERRUPT.
  fsldma: Fix fsldma.c warning messages when it's compiled under PPC64.

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6
Linus Torvalds [Thu, 13 Mar 2008 20:16:22 +0000 (13:16 -0700)]
Merge git://git./linux/kernel/git/gregkh/pci-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6:
  PCI: fix issue with busses registering multiple times in sysfs

16 years agoavoid endless loops in lib/swiotlb.c
Jan Beulich [Thu, 13 Mar 2008 09:13:30 +0000 (09:13 +0000)]
avoid endless loops in lib/swiotlb.c

Commit 681cc5cd3efbeafca6386114070e0bfb5012e249 ("iommu sg merging:
swiotlb: respect the segment boundary limits") introduced two
possibilities for entering an endless loop in lib/swiotlb.c:

 - if max_slots is zero (possible if mask is ~0UL)
 - if the number of slots requested fits into a swiotlb segment, but is
   too large for the part of a segment which remains after considering
   offset_slots

This fixes them

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
Linus Torvalds [Thu, 13 Mar 2008 20:13:47 +0000 (13:13 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (32 commits)
  ACPI: thermal: show temperature in millidegree Celsius
  thermal: fix generic thermal I/F for hwmon
  acer-wmi: build depends on i8042
  documentation:  Move power-related files to Documentation/power/
  ACPI: buffer array too short in drivers/acpi/system.c
  acer-wmi: Add DMI quirk for mail LED support on Acer Aspire 3610/ 5610
  acer-wmi: Fix DSDT path in documentation
  acer-wmi: Make device detection error messages more descriptive
  laptops: move laptop-mode.txt to Documentation/laptops/
  ACPICA: Warn if packages with invalid references are evaluated
  ACPI: add _PRT quirks to work around broken firmware
  Hibernation: Fix mark_nosave_pages()
  ACPI: Ignore _BQC object when registering backlight device
  ACPI: WMI: Clean up handling of spec violating data blocks
  acer-wmi: Don't warn if mail LED cannot be detected
  acer-wmi: Rename mail LED correctly & remove hardcoded colour
  ACPI: use ACPI_DEBUG_PRINT instead of printk in acpi_processor_hotplug_notify()
  ACPI: button: make real parent for input devices in device tree
  toshiba_acpi: Enable autoloading
  ACPI: EC: Handle IRQ storm on Acer laptops
  ...

16 years agoblock: floppy: fix rmmod lockup
Jiri Slaby [Thu, 13 Mar 2008 19:32:43 +0000 (12:32 -0700)]
block: floppy: fix rmmod lockup

Floppy rmmod locks up when no such hardware was initialized, since there is
nobody to wake the remove code up.  Remove the completion, because release is
called during platform_unregister anyway.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agokernel-doc: set verbose mode via environment
Randy Dunlap [Thu, 13 Mar 2008 19:32:43 +0000 (12:32 -0700)]
kernel-doc: set verbose mode via environment

Honor the environment variable "KBUILD_VERBOSE=1" (as set by make V=1) to
enable verbose mode in scripts/kernel-doc.  Useful for getting more info and
warnings from kernel-doc.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoalpha: use iommu_is_span_boundary helper function
FUJITA Tomonori [Thu, 13 Mar 2008 19:32:40 +0000 (12:32 -0700)]
alpha: use iommu_is_span_boundary helper function

iommu_is_span_boundary in lib/iommu-helper.c was exported for PARISC IOMMUs
(commit 3715863aa142c4f4c5208f5f3e5e9bac06006d2f).  Alpha's IOMMU can use it.

This removes the check on the boundary size alignment because
iommu_is_span_boundary does.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Richard Henderson <rth@twiddle.net>
Acked-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agochar: riscom, fix rc_board indexing
Jiri Slaby [Thu, 13 Mar 2008 19:32:39 +0000 (12:32 -0700)]
char: riscom, fix rc_board indexing

In riscom8_init_module, rc_board should be indexed by i, not by 0, otherwise
the loop is useless.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agospi_bitbang: short transfer status fix
Jan Nikitenko [Thu, 13 Mar 2008 19:32:39 +0000 (12:32 -0700)]
spi_bitbang: short transfer status fix

SPI controller drivers return number of bytes actually transfered from
bitbang->txrx_bufs() method.  This updates handling of short transfers (where
the transfer size is less than requested):

 - Even zero byte short transfers should report errors;
 - Include short transfers in the total of transferred bytes;
 - Use EREMOTEIO (like USB) not EMSGSIZE to report short transfers

Short transfers don't normally mean invalid message sizes, but if the
underlying controller driver needs to use EMSGSIZE it can still do so.

[db: fix two more minor issues]
Signed-off-by: Jan Nikitenko <jan.nikitenko@gmail.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>
16 years agoau1550_spi: fix prototype of irq handler
Jan Nikitenko [Thu, 13 Mar 2008 19:32:38 +0000 (12:32 -0700)]
au1550_spi: fix prototype of irq handler

Remove struct pt_regs *regs from prototype of au1550_spi_irq handler to avoid
warning in request_irq().  Also fix comment type leadin.

Signed-off-by: Jan Nikitenko <jan.nikitenko@gmail.com>
Signed-off-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoh8300: fix recent uaccess breakage
Yoshinori Sato [Thu, 13 Mar 2008 19:32:37 +0000 (12:32 -0700)]
h8300: fix recent uaccess breakage

Al Viro wrote:
>
>  After that commit in asm-h8300/uaccess.h we have
>
> #define get_user(x, ptr)                                        \
> ({                                                              \
>     int __gu_err = 0;                                           \
>     uint32_t __gu_val = 0;                              \
>     ^^^^^^^^^^^^^^^^^
>     switch (sizeof(*(ptr))) {                                   \
>     case 1:                                                     \
>     case 2:                                                     \
>     case 4:                                                     \
>         __gu_val = *(ptr);                                      \
>         break;                                                  \
>     case 8:                                                     \
>         memcpy(&__gu_val, ptr, sizeof (*(ptr)));                \
>                                ^^^^^^^^^^^^^^^^
>
> which, of course, is FUBAR whenever we actually hit that case - memcpy of
> 8 bytes into uint32_t is obviously wrong.  Why don't we simply do

Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agopagemap: proper read error handling
Marcelo Tosatti [Thu, 13 Mar 2008 19:32:35 +0000 (12:32 -0700)]
pagemap: proper read error handling

Fix pagemap_read() error handling by releasing acquired resources and checking
for get_user_pages() partial failure.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agosmackfs: do not trust `count' in inodes write()s
Ahmed S. Darwish [Thu, 13 Mar 2008 19:32:34 +0000 (12:32 -0700)]
smackfs: do not trust `count' in inodes write()s

Smackfs write() implementation does not put a higher bound on the number of
bytes to copy from user-space.  This may lead to a DOS attack if a malicious
`count' field is given.

Assure that given `count' is exactly the length needed for a /smack/load rule.
 In case of /smack/cipso where the length is relative, assure that `count'
does not exceed the size needed for a buffer representing maximum possible
number of CIPSO 2.2 categories.

Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoasync_tx: checkpatch says s/__FUNCTION__/__func__/g
Dan Williams [Fri, 14 Mar 2008 00:45:28 +0000 (17:45 -0700)]
async_tx: checkpatch says s/__FUNCTION__/__func__/g

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
16 years agoiop-adma.c: replace remaining __FUNCTION__ occurrences
Harvey Harrison [Fri, 14 Mar 2008 00:45:28 +0000 (17:45 -0700)]
iop-adma.c: replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
16 years agofsldma: Add a completed cookie updated action in DMA finish interrupt.
Zhang Wei [Fri, 14 Mar 2008 00:45:28 +0000 (17:45 -0700)]
fsldma: Add a completed cookie updated action in DMA finish interrupt.

The patch 'fsldma: do not cleanup descriptors in hardirq context'
(commit 222ccf9ab838a1ca7163969fabd2cddc10403fb5) removed descriptors
cleanup function to tasklet but the completed cookie do not updated.
Thus, the DMA controller will get lots of duplicated transfer
interrupts. Just make a completed cookie update in interrupt handler.
And keep other cleanup jobs in tasklet function.

Tested-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
16 years agofsldma: Add device_prep_dma_interrupt support to fsldma.c
Zhang Wei [Fri, 14 Mar 2008 00:45:28 +0000 (17:45 -0700)]
fsldma: Add device_prep_dma_interrupt support to fsldma.c

This is a bug that I assigned DMA_INTERRUPT capability to fsldma
but missing device_prep_dma_interrupt function. For a bug in
dmaengine.c the driver passed BUG_ON() checking. The patch fixes it.

Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
16 years agodmaengine: Fix a bug about BUG_ON() on DMA engine capability DMA_INTERRUPT.
Zhang Wei [Fri, 14 Mar 2008 00:45:28 +0000 (17:45 -0700)]
dmaengine: Fix a bug about BUG_ON() on DMA engine capability DMA_INTERRUPT.

The device->device_prep_dma_interrupt function is used by
DMA_INTERRUPT capability, not DMA_ZERO_SUM.

Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
16 years agofsldma: Fix fsldma.c warning messages when it's compiled under PPC64.
Zhang Wei [Thu, 13 Mar 2008 17:45:27 +0000 (10:45 -0700)]
fsldma: Fix fsldma.c warning messages when it's compiled under PPC64.

There are warning messages reported by Stephen Rothwell with
ARCH=powerpc allmodconfig build:

drivers/dma/fsldma.c: In function 'fsl_dma_prep_memcpy':
drivers/dma/fsldma.c:439: warning: comparison of distinct pointer types
lacks a cast
drivers/dma/fsldma.c: In function 'fsl_chan_xfer_ld_queue':
drivers/dma/fsldma.c:584: warning: format '%016llx' expects type 'long long
unsigned int', but argument 4 has type 'dma_addr_t'
drivers/dma/fsldma.c: In function 'fsl_dma_chan_do_interrupt':
drivers/dma/fsldma.c:668: warning: format '%x' expects type 'unsigned int',
but argument 5 has type 'dma_addr_t'
drivers/dma/fsldma.c:684: warning: format '%016llx' expects type 'long long
unsigned int', but argument 4 has type 'dma_addr_t'
drivers/dma/fsldma.c:684: warning: format '%016llx' expects type 'long long
unsigned int', but argument 5 has type 'dma_addr_t'
drivers/dma/fsldma.c:701: warning: format '%02x' expects type 'unsigned
int', but argument 4 has type 'dma_addr_t'
drivers/dma/fsldma.c: In function 'fsl_dma_self_test':
drivers/dma/fsldma.c:840: warning: format '%d' expects type 'int', but
argument 5 has type 'size_t'
drivers/dma/fsldma.c: In function 'of_fsl_dma_probe':
drivers/dma/fsldma.c:1010: warning: format '%08x' expects type 'unsigned
int', but argument 5 has type 'resource_size_t'

This patch fixed the above warning messages.

Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
16 years agoPCI: fix issue with busses registering multiple times in sysfs
Greg Kroah-Hartman [Thu, 13 Mar 2008 04:48:03 +0000 (21:48 -0700)]
PCI: fix issue with busses registering multiple times in sysfs

PCI busses can be registered multiple times, so we need to detect if we
have registered our bus structure in sysfs already.  If so, don't do it
again.

Thanks to Guennadi Liakhovetski <g.liakhovetski@gmx.de> for reporting
the problem, and to Linus for poking me to get me to believe that it was
a real problem.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agoMerge branches 'release' and 'doc' into release
Len Brown [Thu, 13 Mar 2008 05:59:53 +0000 (01:59 -0400)]
Merge branches 'release' and 'doc' into release

16 years agoMerge branches 'release', 'ejd', 'sony' and 'wmi' into release
Len Brown [Thu, 13 Mar 2008 05:59:52 +0000 (01:59 -0400)]
Merge branches 'release', 'ejd', 'sony' and 'wmi' into release

16 years agoMerge branches 'release', 'button-sysfs', 'misc', 'mismatch', 'randconfig' and 'toshi...
Len Brown [Thu, 13 Mar 2008 05:59:49 +0000 (01:59 -0400)]
Merge branches 'release', 'button-sysfs', 'misc', 'mismatch', 'randconfig' and 'toshiba' into release

16 years agoMerge branches 'release' and 'thermal' into release
Len Brown [Thu, 13 Mar 2008 05:59:46 +0000 (01:59 -0400)]
Merge branches 'release' and 'thermal' into release

16 years agoMerge branches 'release', 'bugzilla-8570', 'bugzilla-9966', 'bugzilla-9998', 'bugzill...
Len Brown [Thu, 13 Mar 2008 05:59:45 +0000 (01:59 -0400)]
Merge branches 'release', 'bugzilla-8570', 'bugzilla-9966', 'bugzilla-9998', 'bugzilla-10100', 'bugzilla-10132', 'bugzilla-10138' and 'bugzilla-10206' into release

16 years agoACPI: thermal: show temperature in millidegree Celsius
Zhang, Rui [Wed, 27 Feb 2008 23:51:30 +0000 (07:51 +0800)]
ACPI: thermal: show temperature in millidegree Celsius

as now required by the generic thermal I/F

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agothermal: fix generic thermal I/F for hwmon
Zhang, Rui [Wed, 27 Feb 2008 00:37:50 +0000 (08:37 +0800)]
thermal: fix generic thermal I/F for hwmon

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoacer-wmi: build depends on i8042
Jiri Kosina [Mon, 10 Mar 2008 21:29:37 +0000 (22:29 +0100)]
acer-wmi: build depends on i8042

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Thu, 13 Mar 2008 00:56:37 +0000 (17:56 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm: (26 commits)
  [ARM] 4856/1: Orion: initialise the sixth PCIe MBUS mapping window as well
  [ARM] 4855/1: Orion: use correct ethernet unit address range
  [ARM] 4853/1: include uImage target in make help
  [ARM] 4851/1: ns9xxx: fix size of gpiores
  [ARM] AT91: correct at91sam9263ek LCD power gpio pin
  [ARM] replace remaining __FUNCTION__ occurrences
  [ARM] 4850/1: include generic pgtable.h for !CONFIG_MMU case
  [ARM] 4849/1: move ATAGS asm definitions
  [ARM] 4848/1: at91: remove false lockdep warnings
  [ARM] 4847/1: kprobes: fix compilation with CONFIG_DEBUG_FS=y
  [ARM] include/asm-arm - use angle brackets for includes
  [ARM] 4845/1: Orion: Ignore memory tags with invalid data
  ARM: OMAP2: Register the L4 io bus to boot OMAP2
  ARM: OMAP1: Compile in other 16xx boards to OSK defconfig
  ARM: OMAP1: Refresh H2 defconfig
  ARM: OMAP1: Refresh OSK defconfig
  ARM: OMAP: gpio lockdep updates
  ARM: OMAP1: omap1/pm.c build fix
  ARM: OMAP1: omap h2 regression fix
  ARM: OMAP1: Fix compile for boards depending on old gpio expander
  ...

16 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
Linus Torvalds [Thu, 13 Mar 2008 00:00:35 +0000 (17:00 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (22 commits)
  [POWERPC] Fix large hash table allocation on Cell blades
  [POWERPC] Export empty_zero_page
  [POWERPC] Fix viodasd driver with scatterlist debug
  [POWERPC] Fix arch/powerpc/platforms/powermac/pic.c when !CONFIG_ADB_PMU
  [POWERPC] Fix drivers/macintosh/mediabay.c when !CONFIG_ADB_PMU
  [POWERPC] Fix undefined pmu_sys_suspended compilation error
  [POWERPC] Fix build of modular drivers/macintosh/apm_emu.c
  [POWERPC] Fix sleep on some powerbooks
  [POWERPC] Fix bogus test for unassigned PCI resources
  [POWERPC] Fix zImage-dtb.initrd build error
  [POWERPC] Add __ucmpdi2 for 64-bit comparisons in 32-bit kernels
  [POWERPC] spufs: fix rescheduling of non-runnable contexts
  [POWERPC] spufs: don't (ab)use SCHED_IDLE
  [POWERPC] QE: Make qe_get_firmware_info reentrant
  [POWERPC] 83xx: Make 83xx perfmon support selectable
  [PPC] 8xx: swap bug-fix
  [POWERPC] 85xx: sbc8548 - Fix incorrect PCI-X and PCI interrupt map
  [POWERPC] QE: Fix QE firmware uploading limit
  [POWERPC] 8xx: Fix wrapper platform for adder875, and combine defconfigs.
  [POWERPC] 8xx: fix swap
  ...

16 years ago[POWERPC] Fix large hash table allocation on Cell blades
Michael Ellerman [Wed, 12 Mar 2008 07:03:24 +0000 (18:03 +1100)]
[POWERPC] Fix large hash table allocation on Cell blades

My recent hack to allocate the hash table under 1GB on cell was poorly
tested, *cough*. It turns out on blades with large amounts of memory we
fail to allocate the hash table at all. This is because RTAS has been
instantiated just below 768MB, and 0-x MB are used by the kernel,
leaving no areas that are both large enough and also naturally-aligned.

For the cell IOMMU hack the page tables must be under 2GB, so use that
as the limit instead. This has been tested on real hardware and boots
happily.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Export empty_zero_page
Theodore Ts'o [Wed, 12 Mar 2008 20:24:31 +0000 (07:24 +1100)]
[POWERPC] Export empty_zero_page

Once again, this time with feeling....

- Ted

>From c91cfaabc17f8a53807a2f31f067a732e34a1550 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Wed, 12 Mar 2008 11:50:39 -0400
Subject: Export empty_zero_page

The empty_zero_page symbol is exported by most other architectures
(s390, ia64, x86, um), and an upcoming ext4 patch needs it because
ZERO_PAGE() references empty_zero_page, and we need it to zero out an
unitialized extents in ext4 files.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Fix viodasd driver with scatterlist debug
Benjamin Herrenschmidt [Wed, 12 Mar 2008 06:23:56 +0000 (17:23 +1100)]
[POWERPC] Fix viodasd driver with scatterlist debug

The iSeries viodasd drivers does some very strange things with
scatterlists, one of these causing a BUG_ON to trigger when
scatterlist debugging is enabled due to initializing the
scatterlist with memset instead of sg_init_table().

This fixes it by using sg_init_table().  The rest of the stuff
it does to that poor list is still pretty awful but it will work.

I may look into fixing things in a nicer way some other time.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Fix arch/powerpc/platforms/powermac/pic.c when !CONFIG_ADB_PMU
Tony Breeds [Tue, 11 Mar 2008 23:48:48 +0000 (10:48 +1100)]
[POWERPC] Fix arch/powerpc/platforms/powermac/pic.c when !CONFIG_ADB_PMU

When building arch/powerpc/platforms/powermac/pic.c when !CONFIG_ADB_PMU
we get the following warnings:

arch/powerpc/platforms/powermac/pic.c: In function 'pmacpic_find_viaint':
arch/powerpc/platforms/powermac/pic.c:623: warning: label 'not_found' defined but not used

This fixes it.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Fix drivers/macintosh/mediabay.c when !CONFIG_ADB_PMU
Tony Breeds [Tue, 11 Mar 2008 23:48:48 +0000 (10:48 +1100)]
[POWERPC] Fix drivers/macintosh/mediabay.c when !CONFIG_ADB_PMU

When building drivers/macintosh/mediabay.c if CONFIG_ADB_PMU isn't
defined we get:

drivers/built-in.o: In function `media_bay_step':
mediabay.c:(.text+0x92b84): undefined reference to `pmu_suspend'
mediabay.c:(.text+0x92c08): undefined reference to `pmu_resume'

Create empty place holders in that scenario.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Fix undefined pmu_sys_suspended compilation error
Tony Breeds [Tue, 11 Mar 2008 23:48:48 +0000 (10:48 +1100)]
[POWERPC] Fix undefined pmu_sys_suspended compilation error

pmu_sys_suspended is declared extern when:
defined(CONFIG_PM_SLEEP) && defined(CONFIG_PPC32)
but only defined when:
defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32)
which is wrong.  Let's fix that.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Fix build of modular drivers/macintosh/apm_emu.c
Guido Guenther [Sat, 8 Mar 2008 19:20:17 +0000 (06:20 +1100)]
[POWERPC] Fix build of modular drivers/macintosh/apm_emu.c

Currently, if drivers/macintosh/apm_emu is a module and the config
doesn't have CONFIG_SUSPEND we get:

ERROR: "pmu_batteries" [drivers/macintosh/apm_emu.ko] undefined!
ERROR: "pmu_battery_count" [drivers/macintosh/apm_emu.ko] undefined!
ERROR: "pmu_power_flags" [drivers/macintosh/apm_emu.ko] undefined!

on PPC32.  The variables aren't wrapped in '#if defined(CONFIG_SUSPEND)'
so we probably shouldn't wrap the exports either.  This removes the
CONFIG_SUSPEND part of the export, which fixes compilation on ppc32.

Signed-off-by: Guido Guenther <agx@sigxcpu.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Fix sleep on some powerbooks
Benjamin Herrenschmidt [Mon, 3 Mar 2008 06:27:46 +0000 (17:27 +1100)]
[POWERPC] Fix sleep on some powerbooks

The PMU backlight code would kick in during sleep/resume even on
machines that use a different backlight method.  This breaks
sleep on some PowerBooks.

This fixes it by adding a flag to indicate whether the backlight
is controlled by the PMU, and testing that before trying to use
the PMU to turn off the backlight during sleep.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Fix bogus test for unassigned PCI resources
Benjamin Herrenschmidt [Fri, 29 Feb 2008 03:58:03 +0000 (14:58 +1100)]
[POWERPC] Fix bogus test for unassigned PCI resources

A bogus test for unassigned resources that came from our 32-bit
PCI code ended up being "merged" by my previous patch series,
breaking some 64-bit setups where devices have legal resources
ending at 0xffffffff.

This fixes it by completely changing the test.  We now test for
res->start == 0, as the generic code expects, and we also only
do so on platforms that don't have the PPC_PCI_PROBE_ONLY flag
set, as there are cases of pSeries and iSeries where it could
be a valid value and those can't reassign devices.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Fix zImage-dtb.initrd build error
Grant Likely [Thu, 21 Feb 2008 18:57:07 +0000 (05:57 +1100)]
[POWERPC] Fix zImage-dtb.initrd build error

The pattern substitution rules were failing when used with zImage-dtb
targets.  If zImage-dtb.initrd was selected, the pattern substitution
would generate "zImage.initrd-dtb" instead of "zImage-dtb.initrd" which
caused the build to fail.

This renames zImage-dtb to dtbImage to avoid the problem entirely.
By not using the zImage prefix then is no potential for namespace
collisions.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Add __ucmpdi2 for 64-bit comparisons in 32-bit kernels
Paul Mackerras [Wed, 12 Mar 2008 22:39:55 +0000 (09:39 +1100)]
[POWERPC] Add __ucmpdi2 for 64-bit comparisons in 32-bit kernels

Some drivers (such as V4L2) have code that causes gcc to generate
calls to __ucmpdi2 when compiling for 32-bit powerpc, which results
in either a link-time error or a module that can't be loaded, as
we don't currently have a __ucmpdi2.  This adds one so these drivers
can be used.

Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years agodocumentation: Move power-related files to Documentation/power/
Randy Dunlap [Wed, 12 Mar 2008 22:10:51 +0000 (18:10 -0400)]
documentation:  Move power-related files to Documentation/power/

Move 00-INDEX entries to power/00-INDEX (and add entry for
pm_qos_interface.txt).

Update references to moved filenames.

Fix some trailing whitespace.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoACPI: buffer array too short in drivers/acpi/system.c
Johann Felix Soden [Tue, 11 Mar 2008 15:44:26 +0000 (16:44 +0100)]
ACPI: buffer array too short in drivers/acpi/system.c

Since "ff_gbl_lock" has a length of 11 chars and is copied with sprintf
to char buffer[10], there is a problem. We need char buffer[12] because
of the closing zero byte.

Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoacer-wmi: Add DMI quirk for mail LED support on Acer Aspire 3610/ 5610
Carlos Corbacho [Wed, 12 Mar 2008 20:13:00 +0000 (20:13 +0000)]
acer-wmi: Add DMI quirk for mail LED support on Acer Aspire 3610/ 5610

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoacer-wmi: Fix DSDT path in documentation
Carlos Corbacho [Wed, 12 Mar 2008 20:12:55 +0000 (20:12 +0000)]
acer-wmi: Fix DSDT path in documentation

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoacer-wmi: Make device detection error messages more descriptive
Carlos Corbacho [Wed, 12 Mar 2008 20:12:50 +0000 (20:12 +0000)]
acer-wmi: Make device detection error messages more descriptive

The current device detection error messages are all copy & pasted - make
them more descriptive so it's easier to see where in the code a problem
occurs.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Wed, 12 Mar 2008 20:08:09 +0000 (13:08 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits)
  [SCTP]: Fix local_addr deletions during list traversals.
  net: fix build with CONFIG_NET=n
  [TCP]: Prevent sending past receiver window with TSO (at last skb)
  rt2x00: Add new D-Link USB ID
  rt2x00: never disable multicast because it disables broadcast too
  libertas: fix the 'compare command with itself' properly
  drivers/net/Kconfig: fix whitespace for GELIC_WIRELESS entry
  [NETFILTER]: nf_queue: don't return error when unregistering a non-existant handler
  [NETFILTER]: nfnetlink_queue: fix EPERM when binding/unbinding and instance 0 exists
  [NETFILTER]: nfnetlink_log: fix EPERM when binding/unbinding and instance 0 exists
  [NETFILTER]: nf_conntrack: replace horrible hack with ksize()
  [NETFILTER]: nf_conntrack: add \n to "expectation table full" message
  [NETFILTER]: xt_time: fix failure to match on Sundays
  [NETFILTER]: nfnetlink_log: fix computation of netlink skb size
  [NETFILTER]: nfnetlink_queue: fix computation of allocated size for netlink skb.
  [NETFILTER]: nfnetlink: fix ifdef in nfnetlink_compat.h
  [NET]: include <linux/types.h> into linux/ethtool.h for __u* typedef
  [NET]: Make /proc/net a symlink on /proc/self/net (v3)
  RxRPC: fix rxrpc_recvmsg()'s returning of msg_name
  net/enc28j60: oops fix
  ...

16 years agoMerge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
Linus Torvalds [Wed, 12 Mar 2008 20:07:12 +0000 (13:07 -0700)]
Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6

* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  i2c: chips subdirectory is deprecated
  i2c: Keep client->driver and client->dev.driver in sync
  i2c-amd756: Fix off-by-one

16 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Wed, 12 Mar 2008 20:04:11 +0000 (13:04 -0700)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] Clocksource: Only install r4k counter as clocksource if present.
  [MIPS] Lasat: fix LASAT_CASCADE_IRQ
  [MIPS] Delete leftovers of old pcspeaker support.
  [MIPS] BCM1480: Init pci controller io_map_base
  [MIPS] Yosemite: Fix a few more section reference bugs.
  [MIPS] Fix yosemite build error
  [MIPS] Fix loads of section missmatches
  [MIPS] IP27: Tighten up CPU description to fix warnings.
  [MIPS] Fix plat_ioremap for JMR3927
  [MIPS] Export __ucmpdi2 to modules.
  [MIPS] Fix typo in comment
  [MIPS] Use KBUILD_DEFCONFIG
  [MIPS] Allow 48Hz to be selected if CONFIG_SYS_SUPPORTS_ARBIT_HZ is set.
  [MIPS] Added missing cases for rdhwr emulation
  [MIPS] Alchemy: Fix ids in Alchemy db dma device table

16 years agoPNP: disable PNP motherboard resources that overlap PCI BARs
Bjorn Helgaas [Tue, 11 Mar 2008 21:24:41 +0000 (15:24 -0600)]
PNP: disable PNP motherboard resources that overlap PCI BARs

Some BIOSes have PNP motherboard devices with resources that
partially overlap PCI BARs.  The PNP system driver claims these
motherboard resources, which prevents the normal PCI driver from
requesting them later.

This patch disables the PNP resources that conflict with PCI BARs
so they won't be claimed by the PNP system driver.

Of course, this only works if PCI devices have already been enumerated.
Currently this is the case because PCI devices are discovered before
any PNP init via this path:

    acpi_pci_root_init() -> acpi_pci_root_add() -> pci_acpi_scan_root() ->
pci_scan_bus_parented() -> pci_scan_child_bus() -> ...

Avuton Olrich tested this and confirmed that it fixes his ALSA sound
card (see http://lkml.org/lkml/2008/1/27/168).

References:
    https://bugzilla.redhat.com/show_bug.cgi?id=280641
    https://bugzilla.redhat.com/show_bug.cgi?id=313491
    http://lkml.org/lkml/2008/1/9/449
    http://thread.gmane.org/gmane.linux.acpi.devel/27312
    http://lkml.org/lkml/2008/1/27/168

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoPNP: revert Supermicro H8DCE motherboard quirk
Bjorn Helgaas [Tue, 11 Mar 2008 21:24:40 +0000 (15:24 -0600)]
PNP: revert Supermicro H8DCE motherboard quirk

There are other systems with similar problems
(http://lkml.org/lkml/2008/1/27/168), so we need a more
generic quirk.  Remove the Supermicro-specific one first.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoSVCRDMA: Fix erroneous BUG_ON in send_write
Tom Tucker [Tue, 11 Mar 2008 18:31:40 +0000 (14:31 -0400)]
SVCRDMA: Fix erroneous BUG_ON in send_write

The assertion that checks for sge context overflow is
incorrectly hard-coded to 32. This causes a kernel bug
check when using big-data mounts. Changed the BUG_ON to
use the computed value RPCSVC_MAXPAGES.

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoSVCRDMA: Add xprt refs to fix close/unmount crash
Tom Tucker [Tue, 11 Mar 2008 18:31:39 +0000 (14:31 -0400)]
SVCRDMA: Add xprt refs to fix close/unmount crash

RDMA connection shutdown on an SMP machine can cause a kernel crash due
to the transport close path racing with the I/O tasklet.

Additional transport references were added as follows:
- A reference when on the DTO Q to avoid having the transport
  deleted while queued for I/O.
- A reference while there is a QP able to generate events.
- A reference until the DISCONNECTED event is received on the CM ID

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agogenhd must_check warning fix
Roland McGrath [Wed, 12 Mar 2008 00:13:15 +0000 (17:13 -0700)]
genhd must_check warning fix

Fixes:

block/genhd.c:361: warning: ignoring return value of â€˜class_register’, declared with attribute warn_unused_result

Signed-off-by: Roland McGrath <roland@redhat.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoRemove <linux/genhd.h> from user-visible headers.
David Woodhouse [Wed, 12 Mar 2008 16:52:56 +0000 (17:52 +0100)]
Remove <linux/genhd.h> from user-visible headers.

It was all wrapped in '#ifdef CONFIG_BLOCK' anyway, so userspace was
getting nothing useful out of it. And the special #ifndef __KERNEL__
version of 'struct partition' makes me inclined to promote an attitude
of violence...

Stick some comments on some of the #endifs too, while we're at it.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agonommu: Provide is_vmalloc_addr() stub.
Paul Mundt [Wed, 12 Mar 2008 07:51:31 +0000 (16:51 +0900)]
nommu: Provide is_vmalloc_addr() stub.

Introduced in commit-id 9e2779fa281cfda13ac060753d674bbcaa23367e and
ifdef'ed out for nommu in 8ca3ed87db062201e1fa15b64a9214e193fc3a8a, both
approaches end up breaking the nommu build in different ways. An
impressive feat for a 2-liner.

Current is_vmalloc_addr() users fall in to two camps:

- Determining whether to use vfree()/kfree()
- Whether to do vmlist traversal (only /proc/kcore).

Since we don't support /proc/kcore on nommu, that leaves the
vfree()/kfree() determination use cases. nommu vfree() happens to be a
wrapper to kfree() anyways, so is_vmalloc_addr() can always return 0
and end up with the right behaviour.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoIPoIB: Allocate priv->tx_ring with vmalloc()
Roland Dreier [Wed, 12 Mar 2008 14:51:03 +0000 (07:51 -0700)]
IPoIB: Allocate priv->tx_ring with vmalloc()

Commit 7143740d ("IPoIB: Add send gather support") made struct
ipoib_tx_buf significantly larger, since the mapping member changed
from a single u64 to an array with MAX_SKB_FRAGS + 1 entries.  This
means that allocating tx_rings with kzalloc() may fail because there
is not enough contiguous memory for the new, much bigger size.  Fix
this regression by allocating the rings with vmalloc() instead.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years ago[MIPS] Clocksource: Only install r4k counter as clocksource if present.
Ralf Baechle [Wed, 12 Mar 2008 13:58:10 +0000 (13:58 +0000)]
[MIPS] Clocksource: Only install r4k counter as clocksource if present.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] Lasat: fix LASAT_CASCADE_IRQ
Yoichi Yuasa [Wed, 20 Feb 2008 14:11:53 +0000 (23:11 +0900)]
[MIPS] Lasat: fix LASAT_CASCADE_IRQ

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] Delete leftovers of old pcspeaker support.
Ralf Baechle [Mon, 10 Mar 2008 16:20:00 +0000 (16:20 +0000)]
[MIPS] Delete leftovers of old pcspeaker support.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] BCM1480: Init pci controller io_map_base
Thomas Bogendoerfer [Sat, 8 Mar 2008 18:51:55 +0000 (19:51 +0100)]
[MIPS] BCM1480: Init pci controller io_map_base

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] Yosemite: Fix a few more section reference bugs.
Ralf Baechle [Mon, 10 Mar 2008 12:11:48 +0000 (12:11 +0000)]
[MIPS] Yosemite: Fix a few more section reference bugs.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] Fix yosemite build error
Ralf Baechle [Mon, 10 Mar 2008 09:31:50 +0000 (09:31 +0000)]
[MIPS] Fix yosemite build error

<linux/mm.h> didn't pickup the definition of PKMAP_BASE from fixmap.h, ugh.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] Fix loads of section missmatches
Ralf Baechle [Sat, 8 Mar 2008 09:56:28 +0000 (09:56 +0000)]
[MIPS] Fix loads of section missmatches

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] IP27: Tighten up CPU description to fix warnings.
Ralf Baechle [Sat, 8 Mar 2008 09:44:37 +0000 (09:44 +0000)]
[MIPS] IP27: Tighten up CPU description to fix warnings.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] Fix plat_ioremap for JMR3927
Atsushi Nemoto [Sat, 26 Jan 2008 05:08:02 +0000 (14:08 +0900)]
[MIPS] Fix plat_ioremap for JMR3927

TX39XX's "reserved" segment in CKSEG3 area is 0xff000000-0xfffeffff.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] Export __ucmpdi2 to modules.
Ralf Baechle [Tue, 4 Mar 2008 09:03:09 +0000 (09:03 +0000)]
[MIPS] Export __ucmpdi2 to modules.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] Fix typo in comment
Thiemo Seufer [Fri, 29 Feb 2008 00:43:47 +0000 (00:43 +0000)]
[MIPS] Fix typo in comment

We support now other page sizes as well.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] Use KBUILD_DEFCONFIG
Adrian Bunk [Tue, 26 Feb 2008 19:54:54 +0000 (21:54 +0200)]
[MIPS] Use KBUILD_DEFCONFIG

With KBUILD_DEFCONFIG we don't have to ship a second copy of ip22_defconfig.

Signed-off-by: Adrian Bunk <adrian.bunk@movial.fi>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] Allow 48Hz to be selected if CONFIG_SYS_SUPPORTS_ARBIT_HZ is set.
Ralf Baechle [Mon, 25 Feb 2008 16:55:29 +0000 (16:55 +0000)]
[MIPS] Allow 48Hz to be selected if CONFIG_SYS_SUPPORTS_ARBIT_HZ is set.

This allows a 48Hz clock to be selected on Malta and other systems.  Note
this not normally a sensible option as it results in rather high latencies
for some kernel stuff.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] Added missing cases for rdhwr emulation
Chris Dearman [Mon, 8 May 2006 17:02:16 +0000 (18:02 +0100)]
[MIPS] Added missing cases for rdhwr emulation

Some of these are architecturally required for R2 processors so lets try
to be bit closer to the real thing.  This also provides access to the
CPU cycle timer, even on multiprocessors.  In that aspect its currently
bug compatible to what would happen on a R2-based SMP.

Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] Alchemy: Fix ids in Alchemy db dma device table
Wolfgang Ocker [Sun, 10 Feb 2008 19:31:33 +0000 (20:31 +0100)]
[MIPS] Alchemy: Fix ids in Alchemy db dma device table

0 is a valid device id (DSCR_CMD0_UART0_TX), so we can't use it to mark
an empty entry in the device table. Use ~0 instead and search for id ~0
when looking for a free entry.

Signed-off-by: Wolfgang Ocker <weo@reccoware.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years agoi2c: chips subdirectory is deprecated
Jean Delvare [Wed, 12 Mar 2008 13:15:00 +0000 (14:15 +0100)]
i2c: chips subdirectory is deprecated

Let driver authors know that drivers/i2c/chips is usually the wrong place
for new drivers.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c: Keep client->driver and client->dev.driver in sync
Hans Verkuil [Wed, 12 Mar 2008 13:15:00 +0000 (14:15 +0100)]
i2c: Keep client->driver and client->dev.driver in sync

Ensure that client->driver is set to NULL if the probe() returns an
error (this keeps client->driver and client->dev.driver in sync).

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c-amd756: Fix off-by-one
Adrian Bunk [Wed, 12 Mar 2008 13:15:00 +0000 (14:15 +0100)]
i2c-amd756: Fix off-by-one

This patch fixes an off-by-one error spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agolaptops: move laptop-mode.txt to Documentation/laptops/
Randy Dunlap [Tue, 4 Mar 2008 21:41:26 +0000 (13:41 -0800)]
laptops: move laptop-mode.txt to Documentation/laptops/

Move laptop-mode.txt into the laptops/ sub-directory to consolidate
laptop doc files there.

Update references to the file's location.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jk/spufs into...
Paul Mackerras [Wed, 12 Mar 2008 06:13:57 +0000 (17:13 +1100)]
Merge branch 'master' of git://git./linux/kernel/git/jk/spufs into merge

16 years agoACPICA: Warn if packages with invalid references are evaluated
Thomas Renninger [Wed, 12 Mar 2008 00:06:24 +0000 (01:06 +0100)]
ACPICA: Warn if packages with invalid references are evaluated

And return an error to avoid NULL pointer access by the caller
Lin Ming's patch avoids corrupted mem access when
BIOS has invalid references included, the handle is now zero
instead of corrupted.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoACPI: add _PRT quirks to work around broken firmware
Bjorn Helgaas [Tue, 11 Mar 2008 20:45:15 +0000 (13:45 -0700)]
ACPI: add _PRT quirks to work around broken firmware

This patch works around incorrect _PRT (PCI interrupt routing)
information from firmware.  This does not fix any regressions
and can wait for the next kernel release.

On the Medion MD9580-F laptop, the BIOS says the builtin RTL8139
NIC interrupt at 00:09.0[A] is connected to \_SB.PCI0.ISA.LNKA, but
it's really connected to \_SB.PCI0.ISA.LNKB.  Before this patch,
the workaround was to use "pci=routeirq".  More details at
http://bugzilla.kernel.org/show_bug.cgi?id=4773.

On the Dell OptiPlex GX1, the BIOS says the PCI slot interrupt
00:0d[A] is connected to LNKB, but it's really connected to LNKA.
Before this patch, the workaround was to use "pci=routeirq".
Pierre Ossman tested a previous version of this patch and confirmed
that it fixed the problem.  More details at
http://bugzilla.kernel.org/show_bug.cgi?id=5044.

On the HP t5710 thin client, the BIOS says the builtin Radeon
video interrupt at 01:00[A] is connected to LNK1, but it's really
connected to LNK3.  The previous workaround was to use a custom
DSDT.  I tested this patch and verified that it fixes the problem.
More details at http://bugzilla.kernel.org/show_bug.cgi?id=10138.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoHibernation: Fix mark_nosave_pages()
Rafael J. Wysocki [Tue, 11 Mar 2008 23:34:57 +0000 (00:34 +0100)]
Hibernation: Fix mark_nosave_pages()

There is a problem in the hibernation code that triggers on some NUMA
systems on which pfn_valid() returns 'true' for some PFNs that don't
belong to any zone.  Namely, there is a BUG_ON() in
memory_bm_find_bit() that triggers for PFNs not belonging to any
zone and passing the pfn_valid() test.  On the affected systems it
triggers when we mark PFNs reported by the platform as not saveable,
because the PFNs in question belong to a region mapped directly using
iorepam() (i.e. the ACPI data area) and they pass the pfn_valid()
test.

Modify memory_bm_find_bit() so that it returns an error if given PFN
doesn't belong to any zone instead of crashing the kernel and ignore
the result returned by it in mark_nosave_pages(), while marking the
"nosave" memory regions.

This doesn't affect the hibernation functionality, as we won't touch
the PFNs in question anyway.

http://bugzilla.kernel.org/show_bug.cgi?id=9966 .

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoACPI: Ignore _BQC object when registering backlight device
Zhao Yakui [Tue, 11 Mar 2008 08:56:47 +0000 (16:56 +0800)]
ACPI: Ignore _BQC object when registering backlight device

According to acpi spec , the objects of  _BCL and _BCM are required if
integrated LCD is present and supports brightness level .The _BQC is
the optional object. So the _BQC object is ignored when the backlight device
is registered in ACPI video driver.

http://bugzilla.kernel.org/show_bug.cgi?id=10206

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoIPoIB/cm: Set tx_wr.num_sge in connected mode post_send()
Roland Dreier [Wed, 12 Mar 2008 01:35:20 +0000 (18:35 -0700)]
IPoIB/cm: Set tx_wr.num_sge in connected mode post_send()

Commit 7143740d ("IPoIB: Add send gather support") made it possible
for tx_wr.num_sge to be != 1 -- this happens if send gather support is
enabled.  However, the code in the connected mode post_send() function
assumes the old invariant, namely that tx_wr.num_sge is always 1.  Fix
this by explicitly setting tx_wr.num_sge to 1 in the CM post_send().

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years ago[SCTP]: Fix local_addr deletions during list traversals.
Chidambar 'ilLogict' Zinnoury [Wed, 12 Mar 2008 01:05:02 +0000 (18:05 -0700)]
[SCTP]: Fix local_addr deletions during list traversals.

Since the lists are circular, we need to explicitely tag
the address to be deleted since we might end up freeing
the list head instead.  This fixes some interesting SCTP
crashes.

Signed-off-by: Chidambar 'ilLogict' Zinnoury <illogict@online.fr>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agonet: fix build with CONFIG_NET=n
Andrew Morton [Wed, 12 Mar 2008 01:03:35 +0000 (18:03 -0700)]
net: fix build with CONFIG_NET=n

fs/built-in.o:(.rodata+0x1134): undefined reference to `proc_net_inode_operations'
fs/built-in.o:(.rodata+0x1138): undefined reference to `proc_net_operations'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>