11 years agoSLUB: Drop write permission to /proc/slabinfo
WANG Cong [Tue, 18 Aug 2009 16:11:40 +0000]
SLUB: Drop write permission to /proc/slabinfo

SLUB does not support writes to /proc/slabinfo so there should not be write
permission to do that either.

Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

11 years agoslub: change kmem_cache->align to record the real alignment
Zhang, Yanmin [Thu, 30 Jul 2009 03:28:11 +0000]
slub: change kmem_cache->align to record the real alignment

kmem_cache->align records the original align parameter value specified
by users. Function calculate_alignment might change it based on cache
line size. So change kmem_cache->align correspondingly.

Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

11 years agoslub: use size and objsize orders to disable debug flags
David Rientjes [Tue, 28 Jul 2009 01:30:35 +0000]
slub: use size and objsize orders to disable debug flags

This patch moves the masking of debugging flags which increase a cache's
min order due to metadata when `slub_debug=O' is used from
kmem_cache_flags() to kmem_cache_open().

Instead of defining the maximum metadata size increase in a preprocessor
macro, this approach uses the cache's ->size and ->objsize members to
determine if the min order increased due to debugging options.  If so,
the flags specified in the more appropriately named DEBUG_METADATA_FLAGS
are masked off.

This approach was suggested by Christoph Lameter
<cl@linux-foundation.org>.

Cc: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

11 years agoslub: add option to disable higher order debugging slabs
David Rientjes [Tue, 7 Jul 2009 07:14:14 +0000]
slub: add option to disable higher order debugging slabs

When debugging is enabled, slub requires that additional metadata be
stored in slabs for certain options: SLAB_RED_ZONE, SLAB_POISON, and
SLAB_STORE_USER.

Consequently, it may require that the minimum possible slab order needed
to allocate a single object be greater when using these options.  The
most notable example is for objects that are PAGE_SIZE bytes in size.

Higher minimum slab orders may cause page allocation failures when oom or
under heavy fragmentation.

This patch adds a new slub_debug option, which disables debugging by
default for caches that would have resulted in higher minimum orders:

slub_debug=O

When this option is used on systems with 4K pages, kmalloc-4096, for
example, will not have debugging enabled by default even if
CONFIG_SLUB_DEBUG_ON is defined because it would have resulted in a
order-1 minimum slab order.

Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Fri, 10 Jul 2009 03:40:58 +0000]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: when ATTR_READONLY is set, only clear write bits on non-directories
  cifs: remove cifsInodeInfo->inUse counter
  cifs: convert cifs_get_inode_info and non-posix readdir to use cifs_iget
  [CIFS] update cifs version number
  cifs: add and use CIFSSMBUnixSetFileInfo for setattr calls
  cifs: make a separate function for filling out FILE_UNIX_BASIC_INFO
  cifs: rename CIFSSMBUnixSetInfo to CIFSSMBUnixSetPathInfo
  cifs: add pid of initiating process to spnego upcall info
  cifs: fix regression with O_EXCL creates and optimize away lookup
  cifs: add new cifs_iget function and convert unix codepath to use it

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Fri, 10 Jul 2009 03:33:18 +0000]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (29 commits)
  cxgb3: Fix crash caused by stashing wrong netdev_queue
  ixgbe: Fix coexistence of FCoE and Flow Director in 82599
  memory barrier: adding smp_mb__after_lock
  net: adding memory barrier to the poll and receive callbacks
  netpoll: Fix carrier detection for drivers that are using phylib
  includecheck fix: include/linux, rfkill.h
  p54: tx refused but queue active
  Atheros Kconfig needs to be dependent on WLAN_80211
  mac80211: fix docbook
  mac80211_hwsim: avoid NULL access
  ssb: Add support for 4318E
  b43: Add support for 4318E
  zd1211rw: adding SONY IFU-WLM2 (054c:0257) as a zd1211b device
  zd1211rw: 07b8:6001 is a ZD1211B
  r6040: bump driver version to 0.24 and date to 08 July 2009
  r6040: restore MIER register correctly when IRQ line is shared
  ipv4: Fix fib_trie rebalancing, part 4 (root thresholds)
  davinci_emac: fix kernel oops when changing MAC address while interface is down
  igb: set lan id prior to configuring phy
  mac80211: minstrel: avoid accessing negative indices in rix_to_ndx()
  ...

11 years agoFix compile error in bmac.c
Dave Jones [Fri, 10 Jul 2009 01:54:39 +0000]
Fix compile error in bmac.c

Looks like the change in ad361c9884e809340f6daca80d56a9e9c871690a
wasn't compile tested.

Signed-off-by: Dave Jones <davej@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agocxgb3: Fix crash caused by stashing wrong netdev_queue
Roland Dreier [Thu, 9 Jul 2009 09:30:25 +0000]
cxgb3: Fix crash caused by stashing wrong netdev_queue

Commit c3a8c5b6 ("cxgb3: move away from LLTX") exposed a bug in how
cxgb3 looks up the netdev_queue it stashes away in a qset during
initialization.  For multiport devices, the TX queue index it uses is
offset by the first_qset index of each port.  This leads to a crash
once LLTX is removed, since hard_start_xmit is called with one TX
queue lock held, while the TX reclaim timer task grabs a different
(wrong) TX queue lock when it frees skbs.

Fix this by removing the first_qset offset used to look up the TX
queue passed into t3_sge_alloc_qset() from setup_sge_qsets().

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agoixgbe: Fix coexistence of FCoE and Flow Director in 82599
Yi Zou [Thu, 9 Jul 2009 02:29:50 +0000]
ixgbe: Fix coexistence of FCoE and Flow Director in 82599

Fix coexistence of Fiber Channel over Ethernet (FCoE) and Flow Director (FDIR)
in 82599 and remove the disabling of FDIR when FCoE is enabled.

Currently, FDIR is turned off when FCoE is enabled under the assumption that
FCoE is always enabled with DCB being turned on. However, FDIR does not have
to be turned off all the time when FCoE is enabled since FCoE can be enabled
without DCB being turned on, e.g., use link pause only. This patch makes sure
that when DCB is turned on or off, FDIR is turned on or off correspondingly;
and when FCoE is enabled, it does not disable FDIR, rather, it will have FDIR
set up properly so FCoE and FDIR can coexist regardless of DCB being on or off.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agomemory barrier: adding smp_mb__after_lock
Jiri Olsa [Wed, 8 Jul 2009 12:10:31 +0000]
memory barrier: adding smp_mb__after_lock

Adding smp_mb__after_lock define to be used as a smp_mb call after
a lock.

Making it nop for x86, since {read|write|spin}_lock() on x86 are
full memory barriers.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agonet: adding memory barrier to the poll and receive callbacks
Jiri Olsa [Wed, 8 Jul 2009 12:09:13 +0000]
net: adding memory barrier to the poll and receive callbacks

Adding memory barrier after the poll_wait function, paired with
receive callbacks. Adding fuctions sock_poll_wait and sk_has_sleeper
to wrap the memory barrier.

Without the memory barrier, following race can happen.
The race fires, when following code paths meet, and the tp->rcv_nxt
and __add_wait_queue updates stay in CPU caches.

CPU1                         CPU2

sys_select                   receive packet
  ...                        ...
  __add_wait_queue           update tp->rcv_nxt
  ...                        ...
  tp->rcv_nxt check          sock_def_readable
  ...                        {
  schedule                      ...
                                if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
                                        wake_up_interruptible(sk->sk_sleep)
                                ...
                             }

If there was no cache the code would work ok, since the wait_queue and
rcv_nxt are opposit to each other.

Meaning that once tp->rcv_nxt is updated by CPU2, the CPU1 either already
passed the tp->rcv_nxt check and sleeps, or will get the new value for
tp->rcv_nxt and will return with new data mask.
In both cases the process (CPU1) is being added to the wait queue, so the
waitqueue_active (CPU2) call cannot miss and will wake up CPU1.

The bad case is when the __add_wait_queue changes done by CPU1 stay in its
cache, and so does the tp->rcv_nxt update on CPU2 side.  The CPU1 will then
endup calling schedule and sleep forever if there are no more data on the
socket.

Calls to poll_wait in following modules were ommited:
net/bluetooth/af_bluetooth.c
net/irda/af_irda.c
net/irda/irnet/irnet_ppp.c
net/mac80211/rc80211_pid_debugfs.c
net/phonet/socket.c
net/rds/af_rds.c
net/rfkill/core.c
net/sunrpc/cache.c
net/sunrpc/rpc_pipe.c
net/tipc/socket.c

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agocifs: when ATTR_READONLY is set, only clear write bits on non-directories
Jeff Layton [Thu, 9 Jul 2009 05:46:44 +0000]
cifs: when ATTR_READONLY is set, only clear write bits on non-directories

cifs: when ATTR_READONLY is set, only clear write bits on non-directories

On windows servers, ATTR_READONLY apparently either has no meaning or
serves as some sort of queue to certain applications for unrelated
behavior. This MS kbase article has details:

http://support.microsoft.com/kb/326549/

Don't clear the write bits directory mode when ATTR_READONLY is set.

Reported-by: pouchat@peewiki.net
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

11 years agocifs: remove cifsInodeInfo->inUse counter
Jeff Layton [Thu, 9 Jul 2009 05:46:39 +0000]
cifs: remove cifsInodeInfo->inUse counter

cifs: remove cifsInodeInfo->inUse counter

It was purported to be a refcounter of some sort, but was never
used that way. It never served any purpose that wasn't served equally well
by the I_NEW flag.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>

11 years agocifs: convert cifs_get_inode_info and non-posix readdir to use cifs_iget
Jeff Layton [Thu, 9 Jul 2009 05:46:37 +0000]
cifs: convert cifs_get_inode_info and non-posix readdir to use cifs_iget

cifs: convert cifs_get_inode_info and non-posix readdir to use cifs_iget

Rather than allocating an inode and filling it out, have
cifs_get_inode_info fill out a cifs_fattr and call cifs_iget. This means
a pretty hefty reorganization of cifs_get_inode_info.

For the readdir codepath, add a couple of new functions for filling out
cifs_fattr's from different FindFile response infolevels.

Finally, remove cifs_new_inode since there are no more callers.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>

11 years ago[CIFS] update cifs version number
Steve French [Thu, 9 Jul 2009 22:51:38 +0000]
[CIFS] update cifs version number

Signed-off-by: Steve French <sfrench@us.ibm.com>

11 years agocifs: add and use CIFSSMBUnixSetFileInfo for setattr calls
Jeff Layton [Fri, 10 Jul 2009 00:02:50 +0000]
cifs: add and use CIFSSMBUnixSetFileInfo for setattr calls

cifs: add and use CIFSSMBUnixSetFileInfo for setattr calls

When there's an open filehandle, SET_FILE_INFO is apparently preferred
over SET_PATH_INFO. Add a new variant that sets a FILE_UNIX_INFO_BASIC
infolevel via SET_FILE_INFO and switch cifs_setattr_unix to use the
new call when there's an open filehandle available.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

11 years agocifs: make a separate function for filling out FILE_UNIX_BASIC_INFO
Jeff Layton [Fri, 10 Jul 2009 00:02:49 +0000]
cifs: make a separate function for filling out FILE_UNIX_BASIC_INFO

cifs: make a separate function for filling out FILE_UNIX_BASIC_INFO

The SET_FILE_INFO variant will need to do the same thing here. Break
this code out into a separate function that both variants can call.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

11 years agocifs: rename CIFSSMBUnixSetInfo to CIFSSMBUnixSetPathInfo
Jeff Layton [Fri, 10 Jul 2009 00:02:49 +0000]
cifs: rename CIFSSMBUnixSetInfo to CIFSSMBUnixSetPathInfo

cifs: rename CIFSSMBUnixSetInfo to CIFSSMBUnixSetPathInfo

...in preparation of adding a SET_FILE_INFO variant.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

11 years agocifs: add pid of initiating process to spnego upcall info
Jeff Layton [Fri, 10 Jul 2009 00:02:48 +0000]
cifs: add pid of initiating process to spnego upcall info

cifs: add pid of initiating process to spnego upcall info

This will allow the upcall to poke in /proc/<pid>/environ and get
the value of the $KRB5CCNAME env var for the process.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

11 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
Linus Torvalds [Thu, 9 Jul 2009 03:59:13 +0000]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] Fix compile failure in cpufreq.c

11 years agonetpoll: Fix carrier detection for drivers that are using phylib
Anton Vorontsov [Thu, 9 Jul 2009 03:09:44 +0000]
netpoll: Fix carrier detection for drivers that are using phylib

Using early netconsole and gianfar driver this error pops up:

  netconsole: timeout waiting for carrier

It appears that net/core/netpoll.c:netpoll_setup() is using
cond_resched() in a loop waiting for a carrier.

The thing is that cond_resched() is a no-op when system_state !=
SYSTEM_RUNNING, and so drivers/net/phy/phy.c's state_queue is never
scheduled, therefore link detection doesn't work.

I belive that the main problem is in cond_resched()[1], but despite
how the cond_resched() story ends, it might be a good idea to call
msleep(1) instead of cond_resched(), as suggested by Andrew Morton.

[1] http://lkml.org/lkml/2009/7/7/463

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
David S. Miller [Thu, 9 Jul 2009 01:13:13 +0000]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6

11 years agofealnx: Fix build breakage -- PR_CONT should be KERN_CONT
Roland Dreier [Thu, 9 Jul 2009 00:05:32 +0000]
fealnx: Fix build breakage -- PR_CONT should be KERN_CONT

Commit ad361c98 ("Remove multiple KERN_ prefixes from printk formats")
broke the build for fealnx because it added some "printk(PR_CONT ..."
calls, when PR_CONT doesn't exist; it should be "printk(KERN_CONT ..."

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years ago[CPUFREQ] Fix compile failure in cpufreq.c
Dave Jones [Wed, 8 Jul 2009 20:14:23 +0000]
[CPUFREQ] Fix compile failure in cpufreq.c

managed_policy is out of scope for the non-smp case.
Declare it locally where used (twice)

Signed-off-by: Dave Jones <davej@redhat.com>

11 years agocifs: fix regression with O_EXCL creates and optimize away lookup
Jeff Layton [Sun, 5 Jul 2009 15:01:02 +0000]
cifs: fix regression with O_EXCL creates and optimize away lookup

cifs: fix regression with O_EXCL creates and optimize away lookup

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Tested-by: Shirish Pargaonkar <shirishp@gmail.com>
CC: Stable Kernel <stable@kernel.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>

11 years agoatmel_lcdfb: fix regression with uninitalized fb_info->mm_lock mutex
Krzysztof Helt [Wed, 8 Jul 2009 20:26:16 +0000]
atmel_lcdfb: fix regression with uninitalized fb_info->mm_lock mutex

Remove not needed locking of the fb_info->mm_lock mutex before a
frambuffer is registered.

This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agofsl-diu-fb: fix regression with uninitalized fb_info->mm_lock mutex
Krzysztof Helt [Wed, 8 Jul 2009 19:59:17 +0000]
fsl-diu-fb: fix regression with uninitalized fb_info->mm_lock mutex

Remove call to the fsl_diu_set_par before the register_framebuffer().

This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Tested-by: "Kai Jiang" <b18973@freescale.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoincludecheck fix: include/linux, rfkill.h
Jaswinder Singh Rajput [Wed, 8 Jul 2009 15:55:54 +0000]
includecheck fix: include/linux, rfkill.h

fix the following 'make includecheck' warning:

  include/linux/rfkill.h: linux/types.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agop54: tx refused but queue active
Larry Finger [Wed, 8 Jul 2009 13:33:02 +0000]
p54: tx refused but queue active

In the mainline kernel, p54usb will fail because the TX queue length can
become < 0. This problem has been reported as Bugzilla #13725. The failure
is expressed by the following message in the logs:

WARNING: at net/mac80211/tx.c:1325 ieee80211_tx+0x23c/0x298 [mac80211]()
Hardware name: HP Pavilion dv2700 Notebook PC
tx refused but queue active

This problem has been recently observed in the wireless-testing tree, where
a full solution is being tested. That fix is too invasive for 2.6.31-rcX,
but the simple change supplied here will prevent the failure.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agoAtheros Kconfig needs to be dependent on WLAN_80211
Jay Sternberg [Tue, 7 Jul 2009 18:18:46 +0000]
Atheros Kconfig needs to be dependent on WLAN_80211

Atheros top level menu needs a "depends WLAN_80211" to properly indent
within menuconfig and xconfig interfaces.

This is purely a visual issue but it effects all subsequent drivers.
The issue is the top level menu does not include a dependency on
WLAN_80211 so within the tree structure, Atheros is at the same level as
WLAN_80211 but when WLAN_80211 collapsed, the menu disappears along with
all subsequent drives, so it is really a subordinate.

Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agomac80211: fix docbook
Johannes Berg [Tue, 7 Jul 2009 09:10:12 +0000]
mac80211: fix docbook

These two functions no longer exist in mac80211,
so trying to insert them generates warnings in
the document.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agomac80211_hwsim: avoid NULL access
Johannes Berg [Tue, 7 Jul 2009 01:43:02 +0000]
mac80211_hwsim: avoid NULL access

There's a race condition -- started can be set to true
before channel is set due to the way mac80211 callbacks
currently work (->start should probably pass the channel
we would like to have initially). For now simply add a
check to hwsim to avoid dereferencing the NULL channel
pointer.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agossb: Add support for 4318E
Clyde McPherson [Wed, 1 Jul 2009 03:39:43 +0000]
ssb: Add support for 4318E

Added support for the Broadcom 4318E chipset on PCMCIA/CF cards. The
4318E can do 802.11A/B/G, only B and G mode are supported in b43.

Signed-off-by: Clyde McPherson <ccmcphe@verizon.net>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agob43: Add support for 4318E
Clyde McPherson [Wed, 1 Jul 2009 03:39:28 +0000]
b43: Add support for 4318E

Added support for the Broadcom 4318E chipset on PCMCIA/CF cards. The
4318E can do 802.11A/B/G, only B and G mode are supported in b43.

Signed-off-by: Clyde McPherson <ccmcphe@verizon.net>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agozd1211rw: adding SONY IFU-WLM2 (054c:0257) as a zd1211b device
Hin-Tak Leung [Fri, 26 Jun 2009 04:28:15 +0000]
zd1211rw: adding SONY IFU-WLM2 (054c:0257) as a zd1211b device

Yevgen Kotikov reported success on the sourceforge zd1211-devs list
with the following details:

Brand/retail: SONY IFU-WLM2
USB-IDs: Vendor: 0x054C Device: 0x0257
chip ID: zd1211b chip 054c:0257 v4802 high 00-0b-6b AL2230_RF pa0 -----
FCC ID: unknown

Signed-off-by: Hin-Tak Leung <htl10@users.sourceforge.net>
Tested-by: Yevgen Kotikov <yevgen.kotikov@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agozd1211rw: 07b8:6001 is a ZD1211B
Pascal Terjan [Thu, 18 Jun 2009 15:54:03 +0000]
zd1211rw: 07b8:6001 is a ZD1211B

On a shuttle machine here we got 07b8:6001 device, handled by zd1211rw, which does not work.
Scanning is OK but association does not work, we get "direct probe to AP xxx timed out"

It appears that this simple patch makes the device work perfectly.

This id was already there in initial import of the driver so I don't know if it has ever been
working as ZD1211 (which would mean they changed it and kept the id :( ).

Signed-off-by: Pascal Terjan <pterjan@mandriva.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agor6040: bump driver version to 0.24 and date to 08 July 2009
Florian Fainelli [Wed, 8 Jul 2009 03:05:48 +0000]
r6040: bump driver version to 0.24 and date to 08 July 2009

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agor6040: restore MIER register correctly when IRQ line is shared
Florian Fainelli [Wed, 8 Jul 2009 03:05:14 +0000]
r6040: restore MIER register correctly when IRQ line is shared

When the r6040 device IRQ line is shared we will enter the driver
interrupt service routine, mask off the device interrupt enable
register (MIER) and return with IRQ_NONE, we would then leave the
device with interrupts disabled, this patch fixes that issue.

Reported-by: Steve Holland <sdh4@iastate.edu>
Signed-off-by: Joe Chou <joe.chou@rdc.com.tw>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agoipv4: Fix fib_trie rebalancing, part 4 (root thresholds)
Jarek Poplawski [Wed, 8 Jul 2009 02:39:16 +0000]
ipv4: Fix fib_trie rebalancing, part 4 (root thresholds)

Pawel Staszewski wrote:
<blockquote>
Some time ago i report this:
http://bugzilla.kernel.org/show_bug.cgi?id=6648

and now with 2.6.29 / 2.6.29.1 / 2.6.29.3 and 2.6.30 it back
dmesg output:
oprofile: using NMI interrupt.
Fix inflate_threshold_root. Now=15 size=11 bits
...
Fix inflate_threshold_root. Now=15 size=11 bits

cat /proc/net/fib_triestat
Basic info: size of leaf: 40 bytes, size of tnode: 56 bytes.
Main:
        Aver depth:     2.28
        Max depth:      6
        Leaves:         276539
        Prefixes:       289922
        Internal nodes: 66762
          1: 35046  2: 13824  3: 9508  4: 4897  5: 2331  6: 1149  7: 5
9: 1  18: 1
        Pointers: 691228
Null ptrs: 347928
Total size: 35709  kB
</blockquote>

It seems, the current threshold for root resizing is too aggressive,
and it causes misleading warnings during big updates, but it might be
also responsible for memory problems, especially with non-preempt
configs, when RCU freeing is delayed long after call_rcu.

It should be also mentioned that because of non-atomic changes during
resizing/rebalancing the current lookup algorithm can miss valid leaves
so it's additional argument to shorten these activities even at a cost
of a minimally longer searching.

This patch restores values before the patch "[IPV4]: fib_trie root
node settings", commit: 965ffea43d4ebe8cd7b9fee78d651268dd7d23c5 from
v2.6.22.

Pawel's report:
<blockquote>
I dont see any big change of (cpu load or faster/slower
routing/propagating routes from bgpd or something else) - in avg there
is from 2% to 3% more of CPU load i dont know why but it is - i change
from "preempt" to "no preempt" 3 times and check this my "mpstat -P ALL
1 30"
always avg cpu load was from 2 to 3% more compared to "no preempt"
[...]
cat /proc/net/fib_triestat
Basic info: size of leaf: 20 bytes, size of tnode: 36 bytes.
Main:
        Aver depth:     2.44
        Max depth:      6
        Leaves:         277814
        Prefixes:       291306
        Internal nodes: 66420
          1: 32737  2: 14850  3: 10332  4: 4871  5: 2313  6: 942  7: 371  8: 3  17: 1
        Pointers: 599098
Null ptrs: 254865
Total size: 18067  kB
</blockquote>

According to this and other similar reports average depth is slightly
increased (~0.2), and root nodes are shorter (log 17 vs. 18), but
there is no visible performance decrease. So, until memory handling is
improved or added parameters for changing this individually, this
patch resets to safer defaults.

Reported-by: Pawel Staszewski <pstaszewski@itcare.pl>
Reported-by: Jorge Boncompte [DTI2] <jorge@dti2.net>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Tested-by: Pawel Staszewski <pstaszewski@itcare.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agodavinci_emac: fix kernel oops when changing MAC address while interface is down
Pablo Bitton [Wed, 8 Jul 2009 02:11:10 +0000]
davinci_emac: fix kernel oops when changing MAC address while interface is down

Check that network interface is running before changing its MAC address.
Otherwise, rxch is accessed when it's NULL - causing a kernel oops.
Moreover, check that the new MAC address is valid.

Signed-off-by: Pablo Bitton <pablo.bitton@gmail.com>
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Tested-by: Chaithrika U S <chaithrika@ti.com>
[tested on DM6467 EVM]
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agoigb: set lan id prior to configuring phy
Alexander Duyck [Tue, 7 Jul 2009 13:01:55 +0000]
igb: set lan id prior to configuring phy

The igb driver was defaulting to using the lock for pci-e function 0 for
all of the phys due to the fact that the lan id was not being set prior to
initialization.  This change makes it so that the function id is set prior
to checking for the phy id.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agox86: don't clear nodes_states[N_NORMAL_MEMORY] when numa is not compiled in
Yinghai Lu [Wed, 8 Jul 2009 16:50:19 +0000]
x86: don't clear nodes_states[N_NORMAL_MEMORY] when numa is not compiled in

Alex found that specjbb2005 still can not run with hugepages on an
x86-64 machine.  This only happens when numa is not compiled in.

The root cause: node_set_state will not set it back for us in that case,
so don't clear that when numa is not select in config

[ v2: use node_clear_state instead ]
Reported-and-Tested-by: Alex Shi <alex.shi@intel.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoRemove multiple KERN_ prefixes from printk formats
Joe Perches [Mon, 6 Jul 2009 20:05:40 +0000]
Remove multiple KERN_ prefixes from printk formats

Commit 5fd29d6ccbc98884569d6f3105aeca70858b3e0f ("printk: clean up
handling of log-levels and newlines") changed printk semantics.  printk
lines with multiple KERN_<level> prefixes are no longer emitted as
before the patch.

<level> is now included in the output on each additional use.

Remove all uses of multiple KERN_<level>s in formats.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agotty: maintainers data was edited wrongly by someone
Alan Cox [Tue, 7 Jul 2009 15:39:54 +0000]
tty: maintainers data was edited wrongly by someone

Move tty entries to tty not trivial. Noted by David Brownell.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agopty: Rework the pty layer to use the normal buffering logic
Alan Cox [Tue, 7 Jul 2009 15:39:41 +0000]
pty: Rework the pty layer to use the normal buffering logic

This fixes the ppp problems and various other issues with call locking
caused by one side of a pty called in one locking context trying to match
another with differing rules on the other side. We also get a big slack
space to work with that means we can bury the flow control deadlock case
for any conceivable real world situation.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
Linus Torvalds [Wed, 8 Jul 2009 16:36:46 +0000]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] Powernow-k8: support family 0xf with 2 low p-states
  [CPUFREQ] fix (utter) cpufreq_add_dev mess
  [CPUFREQ] Cleanup locking in conservative governor
  [CPUFREQ] Cleanup locking in ondemand governor
  [CPUFREQ] Mark policy_rwsem as going static in cpufreq.c wont be exported
  [CPUFREQ] Eliminate the recent lockdep warnings in cpufreq

11 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux...
Linus Torvalds [Wed, 8 Jul 2009 16:35:50 +0000]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-quota-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6:
  quota: Fix possible deadlock during parallel quotaon and quotaoff

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Wed, 8 Jul 2009 16:35:22 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/rafael/suspend-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  PM: Clear -EAGAIN in dpm_prepare
  x86: Fix resume from suspend when CONFIG_CC_STACKPROTECTOR

11 years agointel-iommu: Fix intel_iommu_unmap_range() with size 0
Sheng Yang [Wed, 8 Jul 2009 10:52:52 +0000]
intel-iommu: Fix intel_iommu_unmap_range() with size 0

After some API change, intel_iommu_unmap_range() introduced a assumption that
parameter size != 0, otherwise the dma_pte_clean_range() would have a
overflowed argument. But the user like KVM don't have this assumption before,
then some BUG() triggered.

Fix it by ignoring size = 0.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoFree struct device in fw_dev_release()
Catalin Marinas [Wed, 8 Jul 2009 10:17:40 +0000]
Free struct device in fw_dev_release()

The f_dev in _request_firmware() is allocated via the fw_setup_device()
and fw_register_device() calls and its class set to firmware_class (the
class release function is fw_dev_release).

Commit 6acf70f078ca replaced the kfree(dev) in fw_dev_release() with a
put_device() call but my understanding is that the release function is
called via put_device -> kobject_put -> kref_put -> koject_release etc.
and it should call kfree since it's the last to see this device
structure alive.

Because of that, the _request_firmware() function on its -ENOENT error
path only calls device_unregister(f_dev) which would eventually call
fw_dev_release() but there is no kfree (the subsequent put_device call
would just make the kref negative).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoFree the memory allocated by memdup_user() in fs/sysfs/bin.c
Catalin Marinas [Wed, 8 Jul 2009 10:17:34 +0000]
Free the memory allocated by memdup_user() in fs/sysfs/bin.c

Commit 1c8542c7bb replaced kmalloc() with memdup_user() in the write()
function but also dropped the kfree(temp). The memdup_user() function
allocates memory which is never freed.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Parag Warudkar <parag.warudkar@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Wed, 8 Jul 2009 16:32:41 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: gpio_mouse - use standard driver registration method
  Input: mark serio and i8042 as suspended when hibernating too
  Input: add support for generic GPIO-based matrix keypad
  Input: arrange keyboards alphabetically
  Input: gpio-keys - avoid possibility of sleeping in timer function
  Input: gpio-keys - revert 'change timer to workqueue'
  Input: dm355evm_keys - fix kconfig symbol names
  Input: wacom - add DTF720a support and fix rotation on Intuos3
  Input: i8042 - more reset quirks for MSI Wind-clone netbooks

11 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Wed, 8 Jul 2009 16:32:20 +0000]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Don't use alloc_bootmem() in init_IRQ() path
  powerpc: Fix spin_event_timeout() to be robust over context switches
  powerpc: Use pr_devel() in do_dcache_icache_coherency()
  powerpc/cell: Use pr_devel() in axon_msi.c
  powerpc: Use pr_devel() in arch/powerpc/mm/gup.c
  powerpc: Cleanup & use pr_devel() in arch/powerpc/mm/slb.c
  powerpc/perf_counter: Remove duplicated #include
  powerpc: Use pr_devel() in arch/powerpc/mm/mmu_context_nohash.c
  powerpc/pseries: Use pr_devel() in xics.c
  powerpc: Remove unnecessary semicolons
  powerpc/pseries: Use pr_devel() in pseries LPAR HPTE routines
  powerpc/44x: Fix build error with -Werror for Warp platform
  powerpc/4xx: Have Warp take advantage of GPIO LEDs default-state = keep
  powerpc/44x: Update Warp defconfig

11 years agoheaders: mnt_namespace.h redux
Alexey Dobriyan [Tue, 7 Jul 2009 21:54:37 +0000]
headers: mnt_namespace.h redux

Fix various silly problems wrt mnt_namespace.h:

 - exit_mnt_ns() isn't used, remove it
 - done that, sched.h and nsproxy.h inclusions aren't needed
 - mount.h inclusion was need for vfsmount_lock, but no longer
 - remove mnt_namespace.h inclusion from files which don't use anything
   from mnt_namespace.h

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoMerge branch 'sh/for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal...
Linus Torvalds [Wed, 8 Jul 2009 16:24:01 +0000]
Merge branch 'sh/for-2.6.31' of git://git./linux/kernel/git/lethal/sh-2.6

* 'sh/for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  serial: sh-sci: fix sci interrupt handler
  video: hitfb: Move over to dev_pm_ops.
  video: hitfb: Convert to framebuffer_alloc().
  video: sh_mobile_lcdcfb: Convert to framebuffer_alloc().
  sh: add r8a66597 usb0 host to the se7724 board
  usb: allow sh7724 to enable on-chip r8a66597
  sh-sci: update receive error handling for muxed irqs
  sh: define PERF_COUNTER_INDEX_OFFSET.

11 years agoRevert "fb: Initialize fb_info mutexes in framebuffer_alloc()"
Linus Torvalds [Wed, 8 Jul 2009 16:20:11 +0000]
Revert "fb: Initialize fb_info mutexes in framebuffer_alloc()"

This reverts commit 4148df9b0f38bdd362dd91d52076926c11cbe5a9.

Let's hope that the mm_lock initialization is now correct with all
drivers, following Krzysztof's patches.

Requested-by: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agomatroxfb: fix regression with uninitalized fb_info->mm_lock mutex (second head)
Krzysztof Helt [Tue, 7 Jul 2009 20:34:13 +0000]
matroxfb: fix regression with uninitalized fb_info->mm_lock mutex (second head)

Remove redundant locking by the mm_lock mutex before a second head of
matrox framebuffer is registered.

This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agomatroxfb: fix regression with uninitalized fb_info->mm_lock mutex
Krzysztof Helt [Tue, 7 Jul 2009 20:06:48 +0000]
matroxfb: fix regression with uninitalized fb_info->mm_lock mutex

Remove redundant call to the matroxfb_update_fix() before matrox
frambuffer is registered.

This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agow100fb: fix regression with uninitalized fb_info->mm_lock mutex
Krzysztof Helt [Tue, 7 Jul 2009 17:24:54 +0000]
w100fb: fix regression with uninitalized fb_info->mm_lock mutex

Remove redundant call to the w100fb_set_par() before w100 frambuffer is
registered.

This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoatafb: fix regression with uninitalized fb_info->mm_lock mutex
Krzysztof Helt [Tue, 7 Jul 2009 17:15:16 +0000]
atafb: fix regression with uninitalized fb_info->mm_lock mutex

Remove redundant locking of the fb_info->mm_lock mutex before the
frambuffer is registered.

This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoi810fb: fix regression with uninitalized fb_info->mm_lock mutex
Krzysztof Helt [Tue, 7 Jul 2009 17:07:57 +0000]
i810fb: fix regression with uninitalized fb_info->mm_lock mutex

Remove redundant call to the encode_fix() before i810 frambuffer is
registered.

This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoelfcore.h : Fix UML build breakage
Parag Warudkar [Wed, 8 Jul 2009 15:46:02 +0000]
elfcore.h : Fix UML build breakage

Commit a65e7bfcd74e4c0939f235d2bf9f48ddb3a57991 broke the UML build with
the following error -

  In file included from fs/proc/kcore.c:17:
  include/linux/elfcore.h: In function 'elf_core_copy_task_regs':
  include/linux/elfcore.h:129: error: implicit declaration of function 'task_pt_regs'

Fix this by restoring the previous behavior of returning 0 for all arches
like UML that don't define task_pt_regs.

Signed-off-by: Parag Warudkar <parag.lkml@gmail.com>
Acked-by: Amerigo Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoPM: Clear -EAGAIN in dpm_prepare
Sebastian Ott [Wed, 8 Jul 2009 11:26:05 +0000]
PM: Clear -EAGAIN in dpm_prepare

When the last device in the dpm list is unregistered directly after its
prepare() callback returned with -EAGAIN, the return code is passed to
the calling function, resulting in a suspend failure. Prevent this by
clearing the return code after -EAGAIN.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

11 years agox86: Fix resume from suspend when CONFIG_CC_STACKPROTECTOR
Peter Chubb [Wed, 8 Jul 2009 11:20:13 +0000]
x86: Fix resume from suspend when CONFIG_CC_STACKPROTECTOR

Patch 08687aec71bc9134fe336e561f6did877bacf74fc0a (x86: unify
power/cpu_(32|64).c)  renamed cpu_32.c to cpu.c, but did not update
the special compilation flags for the file for the new name.

This patch fixes the compilation flags, and therefore fixes resume
from suspend on my Acer Aspire One.

[rjw: The regression from 2.6.30 fixed by this patch is tracked as
 http://bugzilla.kernel.org/show_bug.cgi?id=13661]

Signed-off-by: Peter Chubb <peterc@nicta.com.au>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

11 years agoInput: gpio_mouse - use standard driver registration method
Saeed Bishara [Wed, 8 Jul 2009 05:11:52 +0000]
Input: gpio_mouse - use standard driver registration method

This patch is needed when the gpio's became available only at late
stages, for example, when using i2c gpio expander.

Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

11 years agoInput: mark serio and i8042 as suspended when hibernating too
Thadeu Lima de Souza Cascardo [Wed, 8 Jul 2009 05:10:02 +0000]
Input: mark serio and i8042 as suspended when hibernating too

Serio ports are not being restarted any longer because resume operations
after hibernate do nothing, since the device has not been marked as
suspended. This happens because suspend is only considering the SUSPEND
event but not the FREEZE event.

Note that this driver has still to migrate to dev_pm_ops, but this fixes
this particular bug now.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

11 years agopowerpc: Don't use alloc_bootmem() in init_IRQ() path
Anton Vorontsov [Wed, 1 Jul 2009 10:59:57 +0000]
powerpc: Don't use alloc_bootmem() in init_IRQ() path

This patch fixes various badnesses like this for all interrupt
controllers:

------------[ cut here ]------------
Badness at c04db9dc [verbose debug info unavailable]
NIP: c04db9dc LR: c04db9ac CTR: 00000000
REGS: c053de30 TRAP: 0700   Not tainted  (2.6.31-rc1-00432-ge69b2b5-dirty)
MSR: 00021000 <ME,CE>  CR: 22020084  XER: 00000000
TASK = c0500480[0] 'swapper' THREAD: c053c000
GPR00: 00000001 c053dee0 c0500480 00000000 00000050 00000020 3fffffff 00000000
GPR08: 00000001 c0540000 e0080080 00000000 22000084 64183600 3ff8f800 00000000
GPR16: 841b0240 449a0303 00000000 00000000 00000000 00000000 00000000 c04f5bf4
GPR24: 00000000 00000000 00000000 00000050 00000020 00000000 3fffffff 00000050
NIP [c04db9dc] alloc_arch_preferred_bootmem+0x48/0x74
LR [c04db9ac] alloc_arch_preferred_bootmem+0x18/0x74
Call Trace:
[c053dee0] [c000a5a4] __of_address_to_resource+0x44/0xd0 (unreliable)
[c053def0] [c04dba58] ___alloc_bootmem_nopanic+0x50/0x108
[c053df20] [c04dbb28] ___alloc_bootmem+0x18/0x50
[c053df30] [c04d5de0] qe_ic_init+0x5c/0x1b0
[c053df70] [c04d77b0] mpc85xx_mds_pic_init+0xb8/0x10c
[c053dfb0] [c04cf374] init_IRQ+0x28/0x3c

p.s. commit 85355bb272db31a3f2dd99d547eef794805e1319 ("powerpc: Fix
mpic alloc warning") missed some alloc_bootmem() instances, this is
now fixed.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agopowerpc: Fix spin_event_timeout() to be robust over context switches
Grant Likely [Mon, 29 Jun 2009 13:40:51 +0000]
powerpc: Fix spin_event_timeout() to be robust over context switches

Current implementation of spin_event_timeout can be interrupted by an
IRQ or context switch after testing the condition, but before checking
the timeout.  This can cause the loop to report a timeout when the
condition actually became true in the middle.

This patch adds one final check of the condition upon exit of the loop
if the last test of the condition was still false.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agopowerpc: Use pr_devel() in do_dcache_icache_coherency()
Michael Ellerman [Wed, 17 Jun 2009 18:13:52 +0000]
powerpc: Use pr_devel() in do_dcache_icache_coherency()

pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text    data     bss     dec     hex filename
   2036     368       8    2412     96c arch/powerpc/mm/pgtable.o

size after:
   text    data     bss     dec     hex filename
   1677     248       8    1933     78d arch/powerpc/mm/pgtable.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agopowerpc/cell: Use pr_devel() in axon_msi.c
Michael Ellerman [Wed, 17 Jun 2009 18:13:53 +0000]
powerpc/cell: Use pr_devel() in axon_msi.c

pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text    data     bss     dec     hex filename
   7083    1616       0    8699    21fb arch/powerpc/../axon_msi.o

size after:
   text    data     bss     dec     hex filename
   5772    1208       0    6980    1b44 arch/powerpc/../axon_msi.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agopowerpc: Use pr_devel() in arch/powerpc/mm/gup.c
Michael Ellerman [Wed, 17 Jun 2009 18:13:51 +0000]
powerpc: Use pr_devel() in arch/powerpc/mm/gup.c

pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text    data     bss     dec     hex filename
   3252     384       0    3636     e34 arch/powerpc/mm/gup.o

size after:
   text    data     bss     dec     hex filename
   2576      96       0    2672     a70 arch/powerpc/mm/gup.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agopowerpc: Cleanup & use pr_devel() in arch/powerpc/mm/slb.c
Michael Ellerman [Wed, 17 Jun 2009 18:13:51 +0000]
powerpc: Cleanup & use pr_devel() in arch/powerpc/mm/slb.c

pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text    data     bss     dec     hex filename
   3261     416       4    3681     e61 arch/powerpc/mm/slb.o

size after:
   text    data     bss     dec     hex filename
   2861     248       4    3113     c29 arch/powerpc/mm/slb.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agopowerpc/perf_counter: Remove duplicated #include
Huang Weiyi [Sat, 20 Jun 2009 13:37:00 +0000]
powerpc/perf_counter: Remove duplicated #include

Remove duplicated #include('s) in
  arch/powerpc/kernel/mpc7450-pmu.c
  arch/powerpc/kernel/ppc970-pmu.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agopowerpc: Use pr_devel() in arch/powerpc/mm/mmu_context_nohash.c
Michael Ellerman [Wed, 17 Jun 2009 18:13:54 +0000]
powerpc: Use pr_devel() in arch/powerpc/mm/mmu_context_nohash.c

pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text    data     bss     dec     hex filename
   1508      48      28    1584     630 powerpc/mm/mmu_context_nohash.o

size after:
   text    data     bss     dec     hex filename
   1088       0      28    1116     45c powerpc/mm/mmu_context_nohash.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agopowerpc/pseries: Use pr_devel() in xics.c
Michael Ellerman [Wed, 17 Jun 2009 18:13:53 +0000]
powerpc/pseries: Use pr_devel() in xics.c

pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text    data     bss     dec     hex filename
   7720    5488     296   13504    34c0 platforms/pseries/xics.o

size after:
   text    data     bss     dec     hex filename
   7535    5456     296   13287    33e7 platforms/pseries/xics.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agopowerpc: Remove unnecessary semicolons
Joe Perches [Sun, 28 Jun 2009 06:26:10 +0000]
powerpc: Remove unnecessary semicolons

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agopowerpc/pseries: Use pr_devel() in pseries LPAR HPTE routines
Michael Ellerman [Wed, 17 Jun 2009 18:13:50 +0000]
powerpc/pseries: Use pr_devel() in pseries LPAR HPTE routines

pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

In particular, pSeries_lpar_hpte_insert() goes from 185 instructions
to 77 instructions as a result of this patch. Luckily that code
isn't called very often ...

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text    data     bss     dec     hex filename
   7284    1552     296    9132    23ac platforms/pseries/lpar.o

size after:
   text    data     bss     dec     hex filename
   5806    1096     296    7198    1c1e platforms/pseries/lpar.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agoMerge commit 'jwb/merge' into merge
Benjamin Herrenschmidt [Wed, 8 Jul 2009 03:49:38 +0000]
Merge commit 'jwb/merge' into merge

11 years agomac80211: minstrel: avoid accessing negative indices in rix_to_ndx()
Luciano Coelho [Fri, 3 Jul 2009 05:25:08 +0000]
mac80211: minstrel: avoid accessing negative indices in rix_to_ndx()

If rix is not found in mi->r[], i will become -1 after the loop.  This value
is eventually used to access arrays, so we were accessing arrays with a
negative index, which is obviously not what we want to do.  This patch fixes
this potential problem.

Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agocfg80211: fix refcount leak
Johannes Berg [Thu, 2 Jul 2009 13:46:41 +0000]
cfg80211: fix refcount leak

The code in cfg80211's cfg80211_bss_update erroneously
grabs a reference to the BSS, which means that it will
never be freed.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: stable@kernel.org [2.6.29, 2.6.30]
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agohp-wmi: fix rfkill bug
Johannes Berg [Mon, 29 Jun 2009 08:53:53 +0000]
hp-wmi: fix rfkill bug

Fix the third (I think) polarity error I accidentally
introduced in the rfkill rewrite to make wireless work
again on (certain?) HP laptops.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Tested-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agomac80211: fix allocation in mesh_queue_preq
Andrey Yurovsky [Thu, 25 Jun 2009 23:07:42 +0000]
mac80211: fix allocation in mesh_queue_preq

We allocate a PREQ queue node in mesh_queue_preq, however the allocation
may cause us to sleep.  Use GFP_ATOMIC to prevent this.

[ 1869.126498] BUG: scheduling while atomic: ping/1859/0x10000100
[ 1869.127164] Modules linked in: ath5k mac80211 ath
[ 1869.128310] Pid: 1859, comm: ping Not tainted 2.6.30-wl #1
[ 1869.128754] Call Trace:
[ 1869.129293]  [<c1023a2b>] __schedule_bug+0x48/0x4d
[ 1869.129866]  [<c13b5533>] __schedule+0x77/0x67a
[ 1869.130544]  [<c1026f2e>] ? release_console_sem+0x17d/0x185
[ 1869.131568]  [<c807cf47>] ? mesh_queue_preq+0x2b/0x165 [mac80211]
[ 1869.132318]  [<c13b5b3e>] schedule+0x8/0x1f
[ 1869.132807]  [<c1023c12>] __cond_resched+0x16/0x2f
[ 1869.133478]  [<c13b5bf0>] _cond_resched+0x27/0x32
[ 1869.134191]  [<c108a370>] kmem_cache_alloc+0x1c/0xcf
[ 1869.134714]  [<c10273ae>] ? printk+0x15/0x17
[ 1869.135670]  [<c807cf47>] mesh_queue_preq+0x2b/0x165 [mac80211]
[ 1869.136731]  [<c807d1f8>] mesh_nexthop_lookup+0xee/0x12d [mac80211]
[ 1869.138130]  [<c807417e>] ieee80211_xmit+0xe6/0x2b2 [mac80211]
[ 1869.138935]  [<c80be46d>] ? ath5k_hw_setup_rx_desc+0x0/0x66 [ath5k]
[ 1869.139831]  [<c80c97bc>] ? ath5k_tasklet_rx+0xba/0x506 [ath5k]
[ 1869.140863]  [<c8075191>] ieee80211_subif_start_xmit+0x6c9/0x6e4
[mac80211]
[ 1869.141665]  [<c105cf1c>] ? handle_level_irq+0x78/0x9d
[ 1869.142390]  [<c12e3f93>] dev_hard_start_xmit+0x168/0x1c7
[ 1869.143092]  [<c12f1f17>] __qdisc_run+0xe1/0x1b7
[ 1869.143612]  [<c12e25ff>] qdisc_run+0x18/0x1a
[ 1869.144248]  [<c12e62f4>] dev_queue_xmit+0x16a/0x25a
[ 1869.144785]  [<c13b6dcc>] ? _read_unlock_bh+0xe/0x10
[ 1869.145465]  [<c12eacdb>] neigh_resolve_output+0x19c/0x1c7
[ 1869.146182]  [<c130e2da>] ? ip_finish_output+0x0/0x51
[ 1869.146697]  [<c130e2a0>] ip_finish_output2+0x182/0x1bc
[ 1869.147358]  [<c130e327>] ip_finish_output+0x4d/0x51
[ 1869.147863]  [<c130e9d5>] ip_output+0x80/0x85
[ 1869.148515]  [<c130cc49>] dst_output+0x9/0xb
[ 1869.149141]  [<c130dec6>] ip_local_out+0x17/0x1a
[ 1869.149632]  [<c130e0bc>] ip_push_pending_frames+0x1f3/0x255
[ 1869.150343]  [<c13247ff>] raw_sendmsg+0x5e6/0x667
[ 1869.150883]  [<c1033c55>] ? insert_work+0x6a/0x73
[ 1869.151834]  [<c8071e00>] ?
ieee80211_invoke_rx_handlers+0x17da/0x1ae8 [mac80211]
[ 1869.152630]  [<c132bd68>] inet_sendmsg+0x3b/0x48
[ 1869.153232]  [<c12d7deb>] __sock_sendmsg+0x45/0x4e
[ 1869.153740]  [<c12d8537>] sock_sendmsg+0xb8/0xce
[ 1869.154519]  [<c80be46d>] ? ath5k_hw_setup_rx_desc+0x0/0x66 [ath5k]
[ 1869.155289]  [<c1036b25>] ? autoremove_wake_function+0x0/0x30
[ 1869.155859]  [<c115992b>] ? __copy_from_user_ll+0x11/0xce
[ 1869.156573]  [<c1159d99>] ? copy_from_user+0x31/0x54
[ 1869.157235]  [<c12df646>] ? verify_iovec+0x40/0x6e
[ 1869.157778]  [<c12d869a>] sys_sendmsg+0x14d/0x1a5
[ 1869.158714]  [<c8072c40>] ? __ieee80211_rx+0x49e/0x4ee [mac80211]
[ 1869.159641]  [<c80c83fe>] ? ath5k_rxbuf_setup+0x6d/0x8d [ath5k]
[ 1869.160543]  [<c80be46d>] ? ath5k_hw_setup_rx_desc+0x0/0x66 [ath5k]
[ 1869.161434]  [<c80beba4>] ? ath5k_hw_get_rxdp+0xe/0x10 [ath5k]
[ 1869.162319]  [<c80c97bc>] ? ath5k_tasklet_rx+0xba/0x506 [ath5k]
[ 1869.163063]  [<c1005627>] ? enable_8259A_irq+0x40/0x43
[ 1869.163594]  [<c101edb8>] ? __dequeue_entity+0x23/0x27
[ 1869.164793]  [<c100187a>] ? __switch_to+0x2b/0x105
[ 1869.165442]  [<c1021d5f>] ? finish_task_switch+0x5b/0x74
[ 1869.166129]  [<c12d963a>] sys_socketcall+0x14b/0x17b
[ 1869.166612]  [<c1002b95>] syscall_call+0x7/0xb

Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agoiwmc3200wifi: add Kconfig help
Samuel Ortiz [Wed, 24 Jun 2009 14:07:22 +0000]
iwmc3200wifi: add Kconfig help

We're missing a Kconfig help for the iwmc3200wifi driver.

Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agoath9k: Fix leak in tx descriptor
Vasanthakumar Thiagarajan [Wed, 24 Jun 2009 13:28:47 +0000]
ath9k: Fix leak in tx descriptor

When we reclaim the tx desc, we always assume that the
last desc is a holding desc, which is not true, and skip it.
If the tx queue is drained during channel change, internal
reset and etc, the last descriptor may not be the holding
descriptor and we fail to reclaim them. This results in the
following two issues.

1. Tx stuck - We drop all the frames coming from upper layer
due to shortage in tx desc.

2. Crash - If we fail to reclaim a tx descriptor, we miss to
update the tx BA window with the seq number of the frame
associated to that desc, which, at some point, result in
the following crash due to an assert failure in ath_tx_addto_baw().

This patch fixes these two issues.

 kernel BUG at ../drivers/net/wireless/ath/ath9k/xmit.c:180!
[155064.304164] invalid opcode: 0000 [#1] SMP
 Call Trace:
  [<fbc6d83b>] ? ath9k_tx+0xeb/0x160 [ath9k]
  [<fbbc9591>]  ipv6? __ieee80211_tx+0x41/0x120 [mac80211]
  [<fbbcb5ae>] ?  aes_i586ieee80211_master_start_xmit+0x28e/0x560 [mac80211]
  [<c037e501>]  aes_generic? _spin_lock_irqsave+0x31/0x40
  [<c02f347b>] ? dev_hard_start_xmit+0x16b/0x1c0
  [<c03058b5>] ? __qdisc_run+0x1b5/0x200
  [<fbbcda5a>] ?  af_packetieee80211_select_queue+0xa/0x100 [mac80211]
  [<c02f53b7>] ?  i915dev_queue_xmit+0x2e7/0x3f0
  [<fbbc9b49>] ? ieee80211_subif_start_xmit+0x369/0x7a0 [mac80211]
  [<c031bc35>] ? ip_output+0x55/0xb0
  [<c02e0188>] ? show_memcpy_count+0x18/0x60
  [<c02eb186>] ? __kfree_skb+0x36/0x90
  [<c02f2202>] ?  binfmt_miscdev_queue_xmit_nit+0xd2/0x110
  [<c02f347b>] ? dev_hard_start_xmit+0x16b/0x1c0
  [<c03058b5>] ? __qdisc_run+0x1b5/0x200
  [<c033bca7>] ?  scoarp_create+0x57/0x2a0
  [<c02f53b7>] ?  bridgedev_queue_xmit+0x2e7/0x3f0
  [<c03034a0>] ? eth_header+0x0/0xc0
  [<c033b95f>]  stp? arp_xmit+0x5f/0x70
  [<c033bf4f>] ? arp_send+0x5f/0x70
  [<c033c8f5>]  bnep? arp_solicit+0x105/0x210
  [<c02fa5aa>] ? neigh_timer_handler+0x19a/0x390
  [<c013bf88>] ? run_timer_softirq+0x138/0x210
  [<c02fa410>] ?  ppdevneigh_timer_handler+0x0/0x390
  [<c02fa410>] ? neigh_timer_handler+0x0/0x390

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agob43/b43legacy: fix radio LED initialization
Larry Finger [Sat, 20 Jun 2009 17:58:11 +0000]
b43/b43legacy: fix radio LED initialization

Fix condition in which radio LED did not initialize correctly, and remove
4 compilation warnings.

After the recent changes in rfkill, the radio LED used by b43/b43legacy
did not always initialize correctly.

Both b43 and b43legacy used the deprecated variable radio_enabled in
struct ieee80211_conf.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agoWireless: nl80211, fix lock imbalance
Jiri Slaby [Sat, 20 Jun 2009 10:31:11 +0000]
Wireless: nl80211, fix lock imbalance

Don't forget to unlock cfg80211_mutex in one fail path of
nl80211_set_wiphy.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agoquota: Fix possible deadlock during parallel quotaon and quotaoff
Jiaying Zhang [Tue, 7 Jul 2009 16:15:21 +0000]
quota: Fix possible deadlock during parallel quotaon and quotaoff

The following test script triggers a deadlock on ext2 filesystem:
while true; do quotaon /dev/hda >&/dev/null; usleep $RANDOM; done &
while true; do quotaoff /dev/hda >&/dev/null; usleep $RANDOM; done &

I found there is a potential deadlock between quotaon and quotaoff (or
quotasync). Basically, all of quotactl operations need to be protected by
dqonoff_mutex. vfs_quota_off and vfs_quota_sync also call sb->s_op->quota_write
that needs to grab the i_mutex of the quota file.  But in vfs_quota_on_inode
(called from quotaon operation), the current code tries to grab  the i_mutex of
the quota file first before getting quonoff_mutex.

Reverse the order in which we take locks in vfs_quota_on_inode().

Jan Kara: Changed changelog to be more readable, made lockdep happy with
  I_MUTEX_QUOTA.

Signed-off-by: Jiaying Zhang <jiayingz@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>

11 years agoserial: sh-sci: fix sci interrupt handler
SUGIOKA Toshinobu [Tue, 7 Jul 2009 05:32:07 +0000]
serial: sh-sci: fix sci interrupt handler

Fix up the error bit handling on SCI ports.

Signed-off-by: SUGIOKA Toshinobu <sugioka@itonet.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

11 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux...
Paul Mundt [Tue, 7 Jul 2009 02:55:05 +0000]
Merge branch 'master' of git://git./linux/kernel/git/torvalds/linux-2.6 into sh/for-2.6.31

11 years agovideo: hitfb: Move over to dev_pm_ops.
Paul Mundt [Tue, 7 Jul 2009 02:50:57 +0000]
video: hitfb: Move over to dev_pm_ops.

A trivial update to move hitfb over to dev_pm_ops.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

11 years agovideo: hitfb: Convert to framebuffer_alloc().
Paul Mundt [Tue, 7 Jul 2009 02:44:56 +0000]
video: hitfb: Convert to framebuffer_alloc().

Follows the sh_mobile_lcdcfb change.

Also fixes up a memory leak with cmap allocation.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

11 years agovideo: sh_mobile_lcdcfb: Convert to framebuffer_alloc().
Paul Mundt [Tue, 7 Jul 2009 02:24:32 +0000]
video: sh_mobile_lcdcfb: Convert to framebuffer_alloc().

All fb_info structures need to be allocated with framebuffer_alloc() due
to special initialization. Switch over to it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

11 years agofec: fix definition of 5272 version of FEC_X_DES_ACTIVE register
Greg Ungerer [Mon, 6 Jul 2009 15:23:34 +0000]
fec: fix definition of 5272 version of FEC_X_DES_ACTIVE register

fec: fix definition of 5272 version of FEC_X_DES_ACTIVE register

The ColdFire 5272 FEC driver has a different register address map
than other users of the FEC driver. And its definition of the
FEC_X_DES_ACTIVE register is incorrect, it should be 0x14.
The fec interface cannot transmit data with the old value.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
----
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agofec: remove extra ";" from definition names
Greg Ungerer [Tue, 7 Jul 2009 01:10:25 +0000]
fec: remove extra ";" from definition names

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[CPUFREQ] Powernow-k8: support family 0xf with 2 low p-states
Mark Langsdorf [Sun, 26 Jul 2009 15:55:25 +0000]
[CPUFREQ] Powernow-k8: support family 0xf with 2 low p-states

Provide support for family 0xf processors with 2 P-states
below the elevator voltage.  Remove the checks that prevent
this configuration from being supported and increase the
transition voltage to prevent errors during the transition.

Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
Signed-off-by: Dave Jones <davej@redhat.com>

11 years ago[CPUFREQ] fix (utter) cpufreq_add_dev mess
Mathieu Desnoyers [Fri, 3 Jul 2009 15:25:16 +0000]
[CPUFREQ] fix (utter) cpufreq_add_dev mess

OK, I've tried to clean it up the best I could, but please test this with
concurrent cpu hotplug and cpufreq add/remove in loops. I'm sure we will make
other interesting findings.

This is step one of fixing the overall locking dependency mess in cpufreq.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
CC: rjw@sisk.pl
CC: mingo@elte.hu
CC: Shaohua Li <shaohua.li@intel.com>
CC: Pekka Enberg <penberg@cs.helsinki.fi>
CC: Dave Young <hidave.darkstar@gmail.com>
CC: "Rafael J. Wysocki" <rjw@sisk.pl>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: sven.wegener@stealer.net
CC: cpufreq@vger.kernel.org
CC: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dave Jones <davej@redhat.com>

11 years ago[CPUFREQ] Cleanup locking in conservative governor
venkatesh.pallipadi@intel.com [Fri, 3 Jul 2009 00:08:33 +0000]
[CPUFREQ] Cleanup locking in conservative governor

Redesign the locking inside conservative driver. Make dbs_mutex handle all the
global state changes inside the driver and invent a new percpu mutex
to serialize percpu timer and frequency limit change.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>

11 years ago[CPUFREQ] Cleanup locking in ondemand governor
venkatesh.pallipadi@intel.com [Fri, 3 Jul 2009 00:08:32 +0000]
[CPUFREQ] Cleanup locking in ondemand governor

Redesign the locking inside ondemand driver. Make dbs_mutex handle all the
global state changes inside the driver and invent a new percpu mutex
to serialize percpu timer and frequency limit change.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>

11 years ago[CPUFREQ] Mark policy_rwsem as going static in cpufreq.c wont be exported
venkatesh.pallipadi@intel.com [Fri, 3 Jul 2009 00:08:31 +0000]
[CPUFREQ] Mark policy_rwsem as going static in cpufreq.c wont be exported

lock_policy_rwsem_* and unlock_policy_rwsem_* routines in cpufreq.c are
currently exported to drivers. Improper use of those locks can
result in deadlocks and it is better to keep the locks localized.
Two previous in-kernel users of these interfaces (ondemand and conservative),
do not use this interfaces any more. Schedule them for removal.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>

11 years ago[CPUFREQ] Eliminate the recent lockdep warnings in cpufreq
venkatesh.pallipadi@intel.com [Fri, 3 Jul 2009 00:08:30 +0000]
[CPUFREQ] Eliminate the recent lockdep warnings in cpufreq

Commit b14893a62c73af0eca414cfed505b8c09efc613c although it was very
much needed to properly cleanup ondemand timer, opened-up a can of worms
related to locking dependencies in cpufreq.

Patch here defines the need for dbs_mutex and cleans up its usage in
ondemand governor. This also resolves the lockdep warnings reported here

http://lkml.indiana.edu/hypermail/linux/kernel/0906.1/01925.html
http://lkml.indiana.edu/hypermail/linux/kernel/0907.0/00820.html

and few others..

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>