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Commit Graph

40484 Commits

Author SHA1 Message Date
Daniel Klaffenbach
1d8638d403 ssb: b43-pci-bridge: Add new vendor for BCM4318
Add new vendor for Broadcom 4318.

Signed-off-by: Daniel Klaffenbach <danielklaffenbach@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-22 15:19:31 -05:00
Trond Myklebust
0b26a0bf6f NFS: Ensure we return the dirent->d_type when it is known
Store the dirent->d_type in the struct nfs_cache_array_entry so that we
can use it in getdents() calls.

This fixes a regression with the new readdir code.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-11-22 13:24:48 -05:00
David Daney
90600732d8 phylib: Add support for Marvell 88E1149R devices.
The 88E1149R is 10/100/1000 quad-gigabit Ethernet PHY.  The
.config_aneg function can be shared with 88E1118, but it needs its own
.config_init.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: Cyril Chemparathy <cyril@ti.com>
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-22 08:34:23 -08:00
Laurent Pinchart
9a1f8b34aa [media] v4l: Remove module_name argument to the v4l2_i2c_new_subdev* functions
The argument isn't used anymore by the functions, remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-11-22 11:56:26 -02:00
Anand Gadiyar
07a8cdd2bb usb: musb: do not use dma for control transfers
The Inventra DMA engine used with the MUSB controller in many
SoCs cannot use DMA for control transfers on EP0, but can use
DMA for all other transfers.

The USB core maps urbs for DMA if hcd->self.uses_dma is true.
(hcd->self.uses_dma is true for MUSB as well).

Split the uses_dma flag into two - one that says if the
controller needs to use PIO for control transfers, and
another which says if the controller uses DMA (for all
other transfers).

Also, populate this flag for all MUSB by default.

(Tested on OMAP3 and OMAP4 boards, with EHCI and MUSB HCDs
simultaneously in use).

Signed-off-by: Maulik Mankad <x0082077@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Praveena NADAHALLY <praveen.nadahally@stericsson.com>
Cc: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2010-11-22 12:55:02 +02:00
Jeremy Fitzhardinge
9be4d45759 xen: add extra pages to balloon
Add extra pages in the pseudo-physical address space to the balloon
so we can extend into them later.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2010-11-19 22:15:59 -08:00
Linus Torvalds
b86db47442 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: Add EXT4_IOC_TRIM ioctl to handle batched discard
  fs: Do not dispatch FITRIM through separate super_operation
  ext4: ext4_fill_super shouldn't return 0 on corruption
  jbd2: fix /proc/fs/jbd2/<dev> when using an external journal
  ext4: missing unlock in ext4_clear_request_list()
  ext4: fix setting random pages PageUptodate
2010-11-19 19:46:45 -08:00
Lukas Czerner
93bb41f4f8 fs: Do not dispatch FITRIM through separate super_operation
There was concern that FITRIM ioctl is not common enough to be included
in core vfs ioctl, as Christoph Hellwig pointed out there's no real point
in dispatching this out to a separate vector instead of just through
->ioctl.

So this commit removes ioctl_fstrim() from vfs ioctl and trim_fs
from super_operation structure.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-11-19 21:18:35 -05:00
Linus Torvalds
76db8ac45f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  ceph: fix readdir EOVERFLOW on 32-bit archs
  ceph: fix frag offset for non-leftmost frags
  ceph: fix dangling pointer
  ceph: explicitly specify page alignment in network messages
  ceph: make page alignment explicit in osd interface
  ceph: fix comment, remove extraneous args
  ceph: fix update of ctime from MDS
  ceph: fix version check on racing inode updates
  ceph: fix uid/gid on resent mds requests
  ceph: fix rdcache_gen usage and invalidate
  ceph: re-request max_size if cap auth changes
  ceph: only let auth caps update max_size
  ceph: fix open for write on clustered mds
  ceph: fix bad pointer dereference in ceph_fill_trace
  ceph: fix small seq message skipping
  Revert "ceph: update issue_seq on cap grant"
2010-11-19 15:32:22 -08:00
Linus Torvalds
caf8394524 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (31 commits)
  net: fix kernel-doc for sk_filter_rcu_release
  be2net: Fix to avoid firmware update when interface is not open.
  netfilter: fix IP_VS dependencies
  net: irda: irttp: sync error paths of data- and udata-requests
  ipv6: Expose reachable and retrans timer values as msecs
  ipv6: Expose IFLA_PROTINFO timer values in msecs instead of jiffies
  3c59x: fix build failure on !CONFIG_PCI
  ipg.c: remove id [SUNDANCE, 0x1021]
  net: caif: spi: fix potential NULL dereference
  ath9k_htc: Avoid setting QoS control for non-QoS frames
  net: zero kobject in rx_queue_release
  net: Fix duplicate volatile warning.
  MAINTAINERS: Add stmmac maintainer
  bonding: fix a race in IGMP handling
  cfg80211: fix can_beacon_sec_chan, reenable HT40
  gianfar: fix signedness issue
  net: bnx2x: fix error value sign
  8139cp: fix checksum broken
  r8169: fix checksum broken
  rds: Integer overflow in RDS cmsg handling
  ...
2010-11-19 15:25:59 -08:00
Ohad Ben-Cohen
ed919b0125 mmc: sdio: fix runtime PM anomalies by introducing MMC_CAP_POWER_OFF_CARD
Some board/card/host configurations are not capable of powering off the
card after boot.

To support such configurations, and to allow smoother transition to
runtime PM behavior, MMC_CAP_POWER_OFF_CARD is added, so hosts need to
explicitly indicate whether it's OK to power off their cards after boot.

SDIO core will enable runtime PM for a card only if that cap is set.
As a result, the card will be powered down after boot, and will only
be powered up again when a driver is loaded (and then it's up to the
driver to decide whether power will be kept or not).

This will prevent sdio_bus_probe() failures with setups that do not
support powering off the card.

Reported-and-tested-by: Daniel Drake <dsd@laptop.org>
Reported-and-tested-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-19 17:07:01 -05:00
Linus Torvalds
764bc56917 Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (40 commits)
  drm/radeon/kms: i2c s/sprintf/snprintf/g for safety
  drm/radeon/kms: fix i2c pad masks on rs4xx
  drm/ttm: Fix up a theoretical deadlock
  drm/radeon/kms: fix tiling info on evergreen
  drm/radeon/kms: fix alignment when allocating buffers
  drm/vmwgfx: Fix up an error path during bo creation
  drm/radeon/kms: register an i2c adapter name for the dp aux bus
  drm/radeon/kms/atom: add proper external encoders support
  drm/radeon/kms/atom: cleanup and unify DVO handling
  drm/radeon/kms: properly power up/down the eDP panel as needed (v4)
  drm/radeon/kms/atom: set sane defaults in atombios_get_encoder_mode()
  drm/radeon/kms: turn the backlight off explicitly for dpms
  drm/radeon/kms: fix typo in r600 cs checker
  drm: radeon: fix error value sign
  drm/radeon/kms: fix and unify tiled buffer alignment checking for r6xx/7xx
  nouveau: Acknowledge HPD irq in handler, not bottom half
  drm/nouveau: Fix a few confusions between "chipset" and "card_type".
  drm/nouveau: don't expose backlight control when available through ACPI
  drm/nouveau/pm: improve memtiming mappings
  drm/nouveau: Make PCIE GART size depend on the available RAMIN space.
  ...
2010-11-19 10:27:57 -08:00
David S. Miller
07bfa524d4 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-11-18 11:56:09 -08:00
Linus Torvalds
ed1d77b18c hardirq.h: needs sched.h if using BKL
This really isn't the right thing to do, and strictly speaking we should
have the BKL depth count in the thread info right next to the preempt
count.  The two really do go together.

However, since that would involve a patch to all architectures, and the
BKL is finally going away, it's simply not worth the effort to do the
RightThing(tm).  Just re-instate the <linux/sched.h> include that we
used to get accidentally from the smp_lock.h one.

This is all fallout from the same old "BKL: remove extraneous #include
<smp_lock.h>" commit.

Reported-by: Ingo Molnar <mingo@elte.hu>
Tested-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-18 10:56:29 -08:00
Tetsuo Handa
ef22b7b65f net: Fix duplicate volatile warning.
jiffies is defined as "volatile".

  extern unsigned long volatile __jiffy_data jiffies;

ACCESS_ONCE() uses "volatile".
As a result, some compilers warn duplicate `volatile' for ACCESS_ONCE(jiffies).

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18 09:40:04 -08:00
Ingo Molnar
fcf48a725a Merge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/urgent 2010-11-18 10:37:51 +01:00
Francisco Jerez
f13b32630d drm/nouveau: Expose some BO usage flags to userspace.
This will be needed for Z compression and to take smarter placement
decisions.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Acked-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18 14:38:29 +10:00
Linus Torvalds
0a5b871ea4 hardirq.h: remove now-empty #ifdef/#endif pair
Commit 451a3c24b0 ("BKL: remove extraneous #include <smp_lock.h>")
removed the #include line that was the only thing that was surrounded by
the #ifdef/#endif.

So now that #ifdef is guarding nothing at all. Just remove it.

Reported-by: Byeong-ryeol Kim <brofkims@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-17 18:36:25 -08:00
Linus Torvalds
7957f0a857 Fix build failure due to hwirq.h needing smp_lock.h
Arnd Bergmann did an automated scripting run to find left-over instances
of <linux/smp_lock.h>, and had made it trigger it on the normal BKL use
of lock_kernel and unlock_lernel (and apparently release_kernel_lock and
reacquire_kernel_lock too, used by the scheduler).

That resulted in commit 451a3c24b0 ("BKL: remove extraneous #include
<smp_lock.h>").

However, hardirq.h was the only remaining user of the old
'kernel_locked()' interface, and Arnd's script hadn't checked for that.
So depending on your configuration and what header files had been
included, you would get errors like "implicit declaration of function
'kernel_locked'" during the build.

The right fix is not to just re-instate the smp_lock.h include - it is
to just remove 'kernel_locked()' entirely, since the only use was this
one special low-level detail.  Just make hardirq.h do it directly.

In fact this simplifies and clarifies the code, because some trivial
analysis makes it clear that hardirq.h only ever used _one_ of the two
definitions of kernel_locked(), so we can remove the other one entirely.

Reported-by: Zimny Lech <napohybelskurwysynom2010@gmail.com>
Reported-and-acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-17 14:58:36 -08:00
Arnd Bergmann
451a3c24b0 BKL: remove extraneous #include <smp_lock.h>
The big kernel lock has been removed from all these files at some point,
leaving only the #include.

Remove this too as a cleanup.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-17 08:59:32 -08:00
Dan Carpenter
1e7c780488 fbcmap: integer overflow bug
There is an integer overflow in fb_set_user_cmap() because cmap->len * 2
can wrap.  It's basically harmless.  Your terminal will be messed up
until you type reset.

This patch does three things to fix the bug.

First, it checks the return value of fb_copy_cmap() in fb_alloc_cmap().
That is enough to fix address the overflow.

Second it checks for the integer overflow in fb_set_user_cmap().

Lastly I wanted to cap "cmap->len" in fb_set_user_cmap() much lower
because it gets used to determine the size of allocation.  Unfortunately
no one knows what the limit should be.  Instead what this patch does
is makes the allocation happen with GFP_KERNEL instead of GFP_ATOMIC
and lets the kmalloc() decide what values of cmap->len are reasonable.
To do this, the patch introduces a function called fb_alloc_cmap_gfp()
which is like fb_alloc_cmap() except that it takes a GFP flag.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-17 14:55:45 +09:00
Linus Torvalds
1d6636502b Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  nfs: Ignore kmemleak false positive in nfs_readdir_make_qstr
  SUNRPC: Simplify rpc_alloc_iostats by removing pointless local variable
  nfs: trivial: remove unused nfs_wait_event macro
  NFS: readdir shouldn't read beyond the reply returned by the server
  NFS: Fix a couple of regressions in readdir.
  Revert "NFSv4: Fall back to ordinary lookup if nfs4_atomic_open() returns EISDIR"
  Regression: fix mounting NFS when NFSv3 support is not compiled
  NLM: Fix a regression in lockd
2010-11-16 18:46:28 -08:00
Linus Torvalds
d33fdee4d0 Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: Fix cross-sched-class wakeup preemption
  sched: Fix runnable condition for stoptask
  sched: Use group weight, idle cpu metrics to fix imbalances during idle
2010-11-16 15:20:05 -08:00
Jeff Garzik
f281233d3e SCSI host lock push-down
Move the mid-layer's ->queuecommand() invocation from being locked
with the host lock to being unlocked to facilitate speeding up the
critical path for drivers who don't need this lock taken anyway.

The patch below presents a simple SCSI host lock push-down as an
equivalent transformation.  No locking or other behavior should change
with this patch.  All existing bugs and locking orders are preserved.

Additionally, add one parameter to queuecommand,
	struct Scsi_Host *
and remove one parameter from queuecommand,
	void (*done)(struct scsi_cmnd *)

Scsi_Host* is a convenient pointer that most host drivers need anyway,
and 'done' is redundant to struct scsi_cmnd->scsi_done.

Minimal code disturbance was attempted with this change.  Most drivers
needed only two one-line modifications for their host lock push-down.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-16 13:33:23 -08:00
Jeremy Fitzhardinge
20b4755e4f Merge commit 'v2.6.37-rc2' into upstream/xenfs
* commit 'v2.6.37-rc2': (10093 commits)
  Linux 2.6.37-rc2
  capabilities/syslog: open code cap_syslog logic to fix build failure
  i2c: Sanity checks on adapter registration
  i2c: Mark i2c_adapter.id as deprecated
  i2c: Drivers shouldn't include <linux/i2c-id.h>
  i2c: Delete unused adapter IDs
  i2c: Remove obsolete cleanup for clientdata
  include/linux/kernel.h: Move logging bits to include/linux/printk.h
  Fix gcc 4.5.1 miscompiling drivers/char/i8k.c (again)
  hwmon: (w83795) Check for BEEP pin availability
  hwmon: (w83795) Clear intrusion alarm immediately
  hwmon: (w83795) Read the intrusion state properly
  hwmon: (w83795) Print the actual temperature channels as sources
  hwmon: (w83795) List all usable temperature sources
  hwmon: (w83795) Expose fan control method
  hwmon: (w83795) Fix fan control mode attributes
  hwmon: (lm95241) Check validity of input values
  hwmon: Change mail address of Hans J. Koch
  PCI: sysfs: fix printk warnings
  GFS2: Fix inode deallocation race
  ...
2010-11-16 11:06:22 -08:00
Randy Dunlap
744f9f104e xen: fix header export to userspace
scripts/headers_install.pl prevents "__user" from being exported
to userspace headers, so just use compiler.h to make sure that
__user is defined and avoid the error.

unifdef: linux-next-20101112/xx64/usr/include/xen/privcmd.h.tmp: 79: Premature EOF (#if line 33 depth 1)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc:	Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc:	xen-devel@lists.xensource.com (moderated for non-subscribers)
Cc:	virtualization@lists.osdl.org
Cc:	Tony Finch <dot@dotat.at>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2010-11-16 10:57:05 -08:00
Jeff Layton
5685b97136 nfs: trivial: remove unused nfs_wait_event macro
Nothing uses this macro anymore.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-11-16 11:56:24 -05:00
Trond Myklebust
8e35f8e7c6 NLM: Fix a regression in lockd
Nick Bowler reports:
There are no unusual messages on the client... but I just logged into
the server and I see lots of messages of the following form:

  nfsd: request from insecure port (192.168.8.199:35766)!
  nfsd: request from insecure port (192.168.8.199:35766)!
  nfsd: request from insecure port (192.168.8.199:35766)!
  nfsd: request from insecure port (192.168.8.199:35766)!
  nfsd: request from insecure port (192.168.8.199:35766)!

Bisected to commit 9247685088 (SUNRPC:
Properly initialize sock_xprt.srcaddr in all cases)

Apparently, removing the 'transport->srcaddr.ss_family = family' from
xs_create_sock() triggers this due to nlmclnt_lookup_host() incorrectly
initialising the srcaddr family to AF_UNSPEC.

Reported-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-11-15 20:44:26 -05:00
Mike Frysinger
e3a4d1d2de fbdev: da8xx: punt duplicated FBIO_WAITFORVSYNC define
This is already defined by linux/fb.h now, so punt the duplicate
definition from the driver header.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-16 10:14:22 +09:00
Paul Mundt
849653372d Merge branch 'common/clkfwk' into sh-fixes-for-linus 2010-11-16 10:11:20 +09:00
Eric Paris
12b3052c3e capabilities/syslog: open code cap_syslog logic to fix build failure
The addition of CONFIG_SECURITY_DMESG_RESTRICT resulted in a build
failure when CONFIG_PRINTK=n.  This is because the capabilities code
which used the new option was built even though the variable in question
didn't exist.

The patch here fixes this by moving the capabilities checks out of the
LSM and into the caller.  All (known) LSMs should have been calling the
capabilities hook already so it actually makes the code organization
better to eliminate the hook altogether.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-15 15:40:01 -08:00
Linus Torvalds
fe9d1159b2 Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c: Sanity checks on adapter registration
  i2c: Mark i2c_adapter.id as deprecated
  i2c: Drivers shouldn't include <linux/i2c-id.h>
  i2c: Delete unused adapter IDs
  i2c: Remove obsolete cleanup for clientdata
2010-11-15 14:03:17 -08:00
Jean Delvare
e1e18ee1cb i2c: Mark i2c_adapter.id as deprecated
It's about time to make it clear that i2c_adapter.id is deprecated.
Hopefully this will remind the last user to move over to a different
strategy.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
2010-11-15 22:40:38 +01:00
Jean Delvare
dfdee5f00c i2c: Delete unused adapter IDs
Delete unused I2C adapter IDs. Special cases are:

* I2C_HW_B_RIVA was still set in driver rivafb, however no other
  driver is ever looking for this value, so we can safely remove it.
* I2C_HW_B_HDPVR is used in staging driver lirc_zilog, however no
  adapter ID is ever set to this value, so the code in question never
  runs. As the code additionally expects that I2C_HW_B_HDPVR may not
  be defined, we can delete it now and let the lirc_zilog driver
  maintainer rewrite this piece of code.

Big thanks for Hans Verkuil for doing all the hard work :)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
2010-11-15 22:40:38 +01:00
Linus Torvalds
968ab1838a include/linux/kernel.h: Move logging bits to include/linux/printk.h
Move the logging bits from kernel.h into printk.h so that
there is a bit more logical separation of the generic from
the printk logging specific parts.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-15 13:37:37 -08:00
Jussi Kivilinna
309075cf08 cfg80211: fix WIPHY_FLAG_IBSS_RSN bit
WIPHY_FLAG_IBSS_RSN is BIT(7) as is WIPHY_FLAG_CONTROL_PORT_PROTOCOL. Change
to BIT(8).

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-15 15:00:42 -05:00
Arnd Hannemann
62370e2b93 b43legacy: Fix compile on ARM architecture
When b43legacy is compiled on the arm platform, the following errors are seen:

  CC [M]  drivers/net/wireless/b43legacy/xmit.o
In file included from include/net/dst.h:11,
from drivers/net/wireless/b43legacy/xmit.c:31:
include/net/dst_ops.h:28: error: expected ':', ',', ';', '}' or '__attribute__'
   before '____cacheline_aligned_in_smp'
include/net/dst_ops.h: In function 'dst_entries_get_fast':
include/net/dst_ops.h:33: error: 'struct dst_ops' has no member named
   'pcpuc_entries'
include/net/dst_ops.h: In function 'dst_entries_get_slow':
include/net/dst_ops.h:41: error: 'struct dst_ops' has no member named
   'pcpuc_entries'
include/net/dst_ops.h: In function 'dst_entries_add':
include/net/dst_ops.h:49: error: 'struct dst_ops' has no member named
   'pcpuc_entries'
include/net/dst_ops.h: In function 'dst_entries_init':
include/net/dst_ops.h:55: error: 'struct dst_ops' has no member named
   'pcpuc_entries'
include/net/dst_ops.h: In function 'dst_entries_destroy':
include/net/dst_ops.h:60: error: 'struct dst_ops' has no member named
   'pcpuc_entries'
make[4]: *** [drivers/net/wireless/b43legacy/xmit.o] Error 1
make[3]: *** [drivers/net/wireless/b43legacy] Error 2
make[2]: *** [drivers/net/wireless] Error 2
make[1]: *** [drivers/net] Error 2
make: *** [drivers] Error 2

The cause is a missing include of <linux/cache.h>, which is present for
i386 and x86_64 architectures, but not for arm.

Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-15 15:00:42 -05:00
Andy Whitcroft
3b42a96dc7 net: rtnetlink.h -- only include linux/netdevice.h when used by the kernel
The commit below added a new helper dev_ingress_queue to cleanly obtain the
ingress queue pointer.  This necessitated including 'linux/netdevice.h':

  commit 24824a09e3
  Author: Eric Dumazet <eric.dumazet@gmail.com>
  Date:   Sat Oct 2 06:11:55 2010 +0000

    net: dynamic ingress_queue allocation

However this include triggers issues for applications in userspace
which use the rtnetlink interfaces.  Commonly this requires they include
'net/if.h' and 'linux/rtnetlink.h' leading to a compiler error as below:

  In file included from /usr/include/linux/netdevice.h:28:0,
                   from /usr/include/linux/rtnetlink.h:9,
                   from t.c:2:
  /usr/include/linux/if.h:135:8: error: redefinition of ‘struct ifmap’
  /usr/include/net/if.h:112:8: note: originally defined here
  /usr/include/linux/if.h:169:8: error: redefinition of ‘struct ifreq’
  /usr/include/net/if.h:127:8: note: originally defined here
  /usr/include/linux/if.h:218:8: error: redefinition of ‘struct ifconf’
  /usr/include/net/if.h:177:8: note: originally defined here

The new helper is only defined for the kernel and protected by __KERNEL__
therefore we can simply pull the include down into the same protected
section.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-15 11:29:30 -08:00
Linus Torvalds
7023166959 Merge branch 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6
* 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6:
  fsl-diu-fb: drop dead ioctl define
  MAINTAINERS: Add an fbdev git tree entry.
  OMAP: DSS: Fix documentation regarding 'vram' kernel parameter
  OMAP: VRAM: Fix boot-time memory allocation
  OMAP: VRAM: improve VRAM error prints
  sisfb: limit POST memory test according to PCI resource length
  fbdev: sh_mobile_lcdc: use correct number of modes, when using the default
  fbdev: sh_mobile_lcdc: use the standard CEA-861 720p timing
  fbdev: sh_mobile_hdmi: properly clean up modedb on monitor unplug
2010-11-15 08:42:07 -08:00
Paul Mundt
549015c36b sh: clkfwk: Disable init clk op for non-legacy clocks.
Presently it's only legacy users that are using this clock op, guard it
with an ifdef to ensure that no new users start using it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-15 18:48:25 +09:00
Paul Mundt
35a96c739f sh: clkfwk: Kill off now unused algo_id in set_rate op.
Now that clk_set_rate_ex() is gone, there is also no way to get at rate
setting algo id, which is now also completely unused. Kill it off before
new clock ops start using it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-15 18:25:17 +09:00
Paul Mundt
9a1683d1dd sh: clkfwk: Kill off unused clk_set_rate_ex().
With the refactoring of the SH7722 clock framework some time ago this
abstraction has become unecessary. Kill it off before anyone else gets
the bright idea to start using it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-15 18:25:12 +09:00
Paul Mundt
344ac14844 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh/urgent 2010-11-15 13:54:00 +09:00
Mike Frysinger
dce1431cb3 fsl-diu-fb: drop dead ioctl define
The fsl-diu-fb driver no longer uses this define, and we have a common one
to cover this already (FBIO_WAITFORVSYNC).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-15 13:49:51 +09:00
Linus Torvalds
9457b24a09 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (66 commits)
  can-bcm: fix minor heap overflow
  gianfar: Do not call device_set_wakeup_enable() under a spinlock
  ipv6: Warn users if maximum number of routes is reached.
  docs: Add neigh/gc_thresh3 and route/max_size documentation.
  axnet_cs: fix resume problem for some Ax88790 chip
  ipv6: addrconf: don't remove address state on ifdown if the address is being kept
  tcp: Don't change unlocked socket state in tcp_v4_err().
  x25: Prevent crashing when parsing bad X.25 facilities
  cxgb4vf: add call to Firmware to reset VF State.
  cxgb4vf: Fail open if link_start() fails.
  cxgb4vf: flesh out PCI Device ID Table ...
  cxgb4vf: fix some errors in Gather List to skb conversion
  cxgb4vf: fix bug in Generic Receive Offload
  cxgb4vf: don't implement trivial (and incorrect) ndo_select_queue()
  ixgbe: Look inside vlan when determining offload protocol.
  bnx2x: Look inside vlan when determining checksum proto.
  vlan: Add function to retrieve EtherType from vlan packets.
  virtio-net: init link state correctly
  ucc_geth: Fix deadlock
  ucc_geth: Do not bring the whole IF down when TX failure.
  ...
2010-11-12 17:17:55 -08:00
Linus Torvalds
00dad7fa99 Merge branch 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (28 commits)
  Revert "USB: xhci: Use GFP_ATOMIC under spin_lock"
  USB: ohci-jz4740: Fix spelling in MODULE_ALIAS
  UWB: Return UWB_RSV_ALLOC_NOT_FOUND rather than crashing on NULL dereference if kzalloc fails
  usb: core: fix information leak to userland
  usb: misc: iowarrior: fix information leak to userland
  usb: misc: sisusbvga: fix information leak to userland
  usb: subtle increased memory usage in u_serial
  USB: option: fix when the driver is loaded incorrectly for some Huawei devices.
  USB: xhci: Use GFP_ATOMIC under spin_lock
  usb: gadget: goku_udc: add registered flag bit, fixing build
  USB: ehci/mxc: compile fix
  USB: Fix FSL USB driver on non Open Firmware systems
  USB: the development of the usb tree is now in git
  usb: musb: fail unaligned DMA transfers on v1.8 and above
  USB: ftdi_sio: add device IDs for Milkymist One JTAG/serial
  usb.h: fix ioctl kernel-doc info
  usb: musb: gadget: kill duplicate code in musb_gadget_queue()
  usb: musb: Fix handling of spurious SESSREQ
  usb: musb: fix kernel oops when loading musb_hdrc module for the 2nd time
  USB: musb: blackfin: push clkin value to platform resources
  ...
2010-11-12 17:13:28 -08:00
Linus Torvalds
edaa4d668b Merge branch 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
  n_gsm: Fix length handling
  n_gsm: Copy n2 over when configuring via ioctl interface
  serial: bfin_5xx: grab port lock before making port termios changes
  serial: bfin_5xx: disable CON_PRINTBUFFER for consoles
  serial: bfin_5xx: remove redundant SSYNC to improve TX speed
  serial: bfin_5xx: always include DMA headers
  vcs: make proper usage of the poll flags
  amiserial: Remove unused variable icount
  8250: Fix tcsetattr to avoid ioctl(TIOCMIWAIT) hang
  tty_ldisc: Fix BUG() on hangup
  TTY: restore tty_ldisc_wait_idle
  SERIAL: blacklist si3052 chip
  drivers/serial/bfin_5xx.c: Fix line continuation defects
  tty: prevent DOS in the flush_to_ldisc
  8250: add support for Kouwell KW-L221N-2
  nozomi: Fix warning from the previous TIOCGCOUNT changes
  tty: fix warning in synclink driver
  tty: Fix formatting in tty.h
  tty: the development tree is now done in git
2010-11-12 16:02:30 -08:00
Ian Campbell
7e77506a59 xen: implement XENMEM_machphys_mapping
This hypercall allows Xen to specify a non-default location for the
machine to physical mapping. This capability is used when running a 32
bit domain 0 on a 64 bit hypervisor to shrink the hypervisor hole to
exactly the size required.

[ Impact: add Xen hypercall definitions ]

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2010-11-12 15:00:06 -08:00
Hao Zheng
0a85df0046 vlan: Add function to retrieve EtherType from vlan packets.
Depending on how a packet is vlan tagged (i.e. hardware accelerated or
not), the encapsulated protocol is stored in different locations.  This
provides a consistent method of accessing that protocol, which is needed
by drivers, security checks, etc.

Signed-off-by: Hao Zheng <hzheng@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-12 12:30:57 -08:00
David S. Miller
7c13a0d9a1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6 2010-11-12 11:04:26 -08:00
Linus Torvalds
7803c05429 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: do not pass injected events back to the originating handler
  Input: pcf8574_keypad - fix error handling in pcf8574_kp_probe
  Input: acecad - fix a memory leak in usb_acecad_probe error path
  Input: atkbd - add 'terminal' parameter for IBM Terminal keyboards
  Input: i8042 - add Sony VAIOs to MUX blacklist
  kgdboc: reset input devices (keyboards) when exiting debugger
  Input: export input_reset_device() for use in KGDB
  Input: adp5588-keys - unify common header defines
2010-11-12 09:52:31 -08:00
Linus Torvalds
8a9f772c14 Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: (27 commits)
  block: remove unused copy_io_context()
  Documentation: remove anticipatory scheduler info
  block: remove REQ_HARDBARRIER
  ioprio: rcu_read_lock/unlock protect find_task_by_vpid call (V2)
  ioprio: fix RCU locking around task dereference
  block: ioctl: fix information leak to userland
  block: read i_size with i_size_read()
  cciss: fix proc warning on attempt to remove non-existant directory
  bio: take care not overflow page count when mapping/copying user data
  block: limit vec count in bio_kmalloc() and bio_alloc_map_data()
  block: take care not to overflow when calculating total iov length
  block: check for proper length of iov entries in blk_rq_map_user_iov()
  cciss: remove controllers supported by hpsa
  cciss: use usleep_range not msleep for small sleeps
  cciss: limit commands allocated on reset_devices
  cciss: Use kernel provided PCI state save and restore functions
  cciss: fix board status waiting code
  drbd: Removed checks for REQ_HARDBARRIER on incomming BIOs
  drbd: REQ_HARDBARRIER -> REQ_FUA transition for meta data accesses
  drbd: Removed the BIO_RW_BARRIER support form the receiver/epoch code
  ...
2010-11-12 08:52:47 -08:00
Linus Torvalds
28397babba Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf, amd: Use kmalloc_node(,__GFP_ZERO) for northbridge structure allocation
  perf_events: Fix time tracking in samples
  perf trace: update usage
  perf trace: update Documentation with new perf trace variants
  perf trace: live-mode command-line cleanup
  perf trace record: handle commands correctly
  perf record: make the record options available outside perf record
  perf trace scripting: remove system-wide param from shell scripts
  perf trace scripting: fix some small memory leaks and missing error checks
  perf: Fix usages of profile_cpu in builtin-top.c to use cpu_list
  perf, ui: Eliminate stack-smashing protection compiler complaint
2010-11-12 08:39:52 -08:00
Linus Torvalds
99efb9369c Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (39 commits)
  drm/ttm: Be consistent on ttm_bo_init() failures
  drm/radeon/kms: Fix retrying ttm_bo_init() after it failed once.
  drm/radeon/kms: fix thermal sensor reporting on rv6xx
  drm/radeon/kms: fix bugs in ddc and cd path router code
  drm/radeon/kms: add support for clock/data path routers
  drm: vmwgfx: fix information leak to userland
  drivers/gpu: Use vzalloc
  drm/vmwgfx: Fix oops on failing bo pin
  drm/ttm: Remove the CAP_SYS_ADMIN requirement for bo pinning
  drm/ttm: Make sure a sync object doesn't disappear while we use it
  drm/radeon/kms: don't disable shared encoders on pre-DCE3 display blocks
  drivers/gpu/drm: Update WARN uses
  drivers/gpu/drm/vmwgfx: Fix k.alloc switched arguments
  DRM: ignore invalid EDID extensions
  drm/radeon/kms: make the connector code less verbose
  drm/ttm: remove failed ttm binding error printout
  drm/ttm: Add a barrier when unreserving
  drm/ttm: Remove mm init error printouts and checks
  drm/ttm: Remove pointless list_empty check
  drm/ttm: Use private locks for the default bo range manager
  ...
2010-11-12 08:11:58 -08:00
Linus Torvalds
0f90933c47 Merge branch 'for-2.6.37' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.37' of git://linux-nfs.org/~bfields/linux:
  locks: remove dead lease error-handling code
  locks: fix leak on merging leases
  nfsd4: fix 4.1 connection registration race
2010-11-12 07:59:41 -08:00
Arun Murthy
fef7764f8b backlight: add low threshold to pwm backlight
The intensity of the backlight can be varied from a range of
max_brightness to zero.  Though most, if not all the pwm based backlight
devices start flickering at lower brightness value.  And also for each
device there exists a brightness value below which the backlight appears
to be turned off though the value is not equal to zero.

If the range of brightness for a device is from zero to max_brightness.  A
graph is plotted for brightness Vs intensity for the pwm based backlight
device has to be a linear graph.

intensity
	  |   /
	  |  /
	  | /
	  |/
	  ---------
	 0	max_brightness

But pratically on measuring the above we note that the intensity of
backlight goes to zero(OFF) when the value in not zero almost nearing to
zero(some x%).  so the graph looks like

intensity
	  |    /
	  |   /
	  |  /
	  |  |
	  ------------
	 0   x	 max_brightness

In order to overcome this drawback knowing this x% i.e nothing but the low
threshold beyond which the backlight is off and will have no effect, the
brightness value is being offset by the low threshold value(retaining the
linearity of the graph).  Now the graph becomes

intensity
	  |     /
	  |    /
	  |   /
	  |  /
	  -------------
	   0	  max_brightness

With this for each and every digit increment in the brightness from zero
there is a change in the intensity of backlight.  Devices having this
behaviour can set the low threshold brightness(lth_brightness) and pass
the same as platform data else can have it as zero.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Arun Murthy <arun.murthy@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Richard Purdie <rpurdie@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-12 07:55:33 -08:00
Samu Onkalo
0efba16cc0 leds: driver for National Semiconductors LP5523 chip
LP5523 chip is nine channel led driver with programmable engines.  Driver
provides support for that chip for direct access via led class or via
programmable engines.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-12 07:55:32 -08:00
Samu Onkalo
500fe14136 leds: driver for National Semiconductor LP5521 chip
This patchset provides support for LP5521 and LP5523 LED driver chips from
National Semicondutor.  Both drivers supports programmable engines and
naturally LED class features.

Documentation is provided as a part of the patchset.  I created "leds"
subdirectory under Documentation.  Perhaps the rest of the leds*
documentation should be moved there.

Datasheets are freely available at National Semiconductor www pages.

This patch:

LP5521 chip is three channel led driver with programmable engines.  Driver
provides support for that chip for direct access via led class or via
programmable engines.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-12 07:55:32 -08:00
Johannes Berg
5ada28bf76 led-class: always implement blinking
Currently, blinking LEDs can be awkward because it is not guaranteed that
all LEDs implement blinking.  The trigger that wants it to blink then
needs to implement its own timer solution.

Rather than require that, add led_blink_set() API that triggers can use.
This function will attempt to use hw blinking, but if that fails
implements a timer for it.  To stop blinking again, brightness_set() also
needs to be wrapped into API that will stop the software blink.

As a result of this, the timer trigger becomes a very trivial one, and
hopefully we can finally see triggers using blinking as well because it's
always easy to use.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Richard Purdie <rpurdie@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-12 07:55:32 -08:00
Nick Piggin
27d20fddc8 radix-tree: fix RCU bug
Salman Qazi describes the following radix-tree bug:

In the following case, we get can get a deadlock:

0.  The radix tree contains two items, one has the index 0.
1.  The reader (in this case find_get_pages) takes the rcu_read_lock.
2.  The reader acquires slot(s) for item(s) including the index 0 item.
3.  The non-zero index item is deleted, and as a consequence the other item is
    moved to the root of the tree. The place where it used to be is queued for
    deletion after the readers finish.
3b. The zero item is deleted, removing it from the direct slot, it remains in
    the rcu-delayed indirect node.
4.  The reader looks at the index 0 slot, and finds that the page has 0 ref
    count
5.  The reader looks at it again, hoping that the item will either be freed or
    the ref count will increase. This never happens, as the slot it is looking
    at will never be updated. Also, this slot can never be reclaimed because
    the reader is holding rcu_read_lock and is in an infinite loop.

The fix is to re-use the same "indirect" pointer case that requires a slot
lookup retry into a general "retry the lookup" bit.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Reported-by: Salman Qazi <sqazi@google.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-12 07:55:32 -08:00
Dan Rosenberg
eaf06b241b Restrict unprivileged access to kernel syslog
The kernel syslog contains debugging information that is often useful
during exploitation of other vulnerabilities, such as kernel heap
addresses.  Rather than futilely attempt to sanitize hundreds (or
thousands) of printk statements and simultaneously cripple useful
debugging functionality, it is far simpler to create an option that
prevents unprivileged users from reading the syslog.

This patch, loosely based on grsecurity's GRKERNSEC_DMESG, creates the
dmesg_restrict sysctl.  When set to "0", the default, no restrictions are
enforced.  When set to "1", only users with CAP_SYS_ADMIN can read the
kernel syslog via dmesg(8) or other mechanisms.

[akpm@linux-foundation.org: explain the config option in kernel.txt]
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Eugene Teo <eugeneteo@kernel.org>
Acked-by: Kees Cook <kees.cook@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-12 07:55:32 -08:00
Catalin Marinas
43b3a0c732 include/linux/highmem.h needs hardirq.h
Commit 3e4d3af501 ("mm: stack based kmap_atomic()") introduced the
kmap_atomic_idx_push() function which warns on in_irq() with
CONFIG_DEBUG_HIGHMEM enabled.  This patch includes linux/hardirq.h for
the in_irq definition.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-12 07:55:30 -08:00
Eric Dumazet
3f9d35b951 atomic: add atomic_inc_not_zero_hint()
Followup of perf tools session in Netfilter WorkShop 2010

In the network stack we make high usage of atomic_inc_not_zero() in
contexts we know the probable value of atomic before increment (2 for udp
sockets for example)

Using a special version of atomic_inc_not_zero() giving this hint can help
processor to use less bus transactions.

On x86 (MESI protocol) for example, this avoids entering Shared state,
because "lock cmpxchg" issues an RFO (Read For Ownership)

akpm: Adds a new include/linux/atomic.h.  This means that new code should
henceforth include linux/atomic.h and not asm/atomic.h.  The presence of
include/linux/atomic.h will in fact cause checkpatch.pl to warn about use
of asm/atomic.h.  The new include/linux/atomic.h becomes the place where
arch-neutral atomic_t code should be placed.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: David Miller <davem@davemloft.net>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Nick Piggin <npiggin@kernel.dk>
Reviewed-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-12 07:55:30 -08:00
Jean Delvare
8705a1baf7 include/linux/resource.h needs types.h
Fix the following warning:
usr/include/linux/resource.h:49: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-12 07:55:30 -08:00
Jason Wessel
3c502e7a02 perf,hw_breakpoint: Initialize hardware api earlier
When using early debugging, the kernel does not initialize the
hw_breakpoint API early enough and causes the late initialization of
the kernel debugger to fail. The boot arguments are:

    earlyprintk=vga ekgdboc=kbd kgdbwait

Then simply type "go" at the kdb prompt and boot. The kernel will
later emit the message:

    kgdb: Could not allocate hwbreakpoints

And at that point the kernel debugger will cease to work correctly.

The solution is to initialize the hw_breakpoint at the same time that
all the other perf call backs are initialized instead of using a
core_initcall() initialization which happens well after the kernel
debugger can make use of hardware breakpoints.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
CC: Frederic Weisbecker <fweisbec@gmail.com>
CC: Ingo Molnar <mingo@elte.hu>
CC: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4CD3396D.1090308@windriver.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-11-12 14:51:55 +01:00
Eric Paris
ac5aa2e333 netfilter: NF_HOOK_COND has wrong conditional
The NF_HOOK_COND returns 0 when it shouldn't due to what I believe to be an
error in the code as the order of operations is not what was intended.  C will
evalutate == before =.  Which means ret is getting set to the bool result,
rather than the return value of the function call.  The code says

if (ret = function() == 1)
when it meant to say:
if ((ret = function()) == 1)

Normally the compiler would warn, but it doesn't notice it because its
a actually complex conditional and so the wrong code is wrapped in an explict
set of () [exactly what the compiler wants you to do if this was intentional].
Fixing this means that errors when netfilter denies a packet get propagated
back up the stack rather than lost.

Problem introduced by commit 2249065f (netfilter: get rid of the grossness
in netfilter.h).

Signed-off-by: Eric Paris <eparis@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-12 08:26:06 +01:00
Jens Axboe
cedb4a7d9f block: remove unused copy_io_context()
Reported-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-11-11 13:40:11 +01:00
Hans J. Koch
318af55ddd uio: Change mail address of Hans J. Koch
My old mail address doesn't exist anymore. This changes all occurrences
to my new address.

Signed-off-by: Hans J. Koch <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-10 16:57:11 -08:00
Brandon Philips
b17cd8d69a driver core: prune docs about device_interface
drivers/base/intf.c was removed before the beginning of (git) time but
its Documentation stuck around.  Remove it.

Signed-off-by: Brandon Philips <brandon@ifup.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-10 16:57:11 -08:00
Suresh Siddha
aae6d3ddd8 sched: Use group weight, idle cpu metrics to fix imbalances during idle
Currently we consider a sched domain to be well balanced when the imbalance
is less than the domain's imablance_pct. As the number of cores and threads
are increasing, current values of imbalance_pct (for example 25% for a
NUMA domain) are not enough to detect imbalances like:

a) On a WSM-EP system (two sockets, each having 6 cores and 12 logical threads),
24 cpu-hogging tasks get scheduled as 13 on one socket and 11 on another
socket. Leading to an idle HT cpu.

b) On a hypothetial 2 socket NHM-EX system (each socket having 8 cores and
16 logical threads), 16 cpu-hogging tasks can get scheduled as 9 on one
socket and 7 on another socket. Leaving one core in a socket idle
whereas in another socket we have a core having both its HT siblings busy.

While this issue can be fixed by decreasing the domain's imbalance_pct
(by making it a function of number of logical cpus in the domain), it
can potentially cause more task migrations across sched groups in an
overloaded case.

Fix this by using imbalance_pct only during newly_idle and busy
load balancing. And during idle load balancing, check if there
is an imbalance in number of idle cpu's across the busiest and this
sched_group or if the busiest group has more tasks than its weight that
the idle cpu in this_group can pull.

Reported-by: Nikhil Rao <ncrao@google.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1284760952.2676.11.camel@sbsiddha-MOBL3.sc.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-11-10 23:13:56 +01:00
Stephane Eranian
eed01528a4 perf_events: Fix time tracking in samples
This patch corrects time tracking in samples. Without this patch
both time_enabled and time_running are bogus when user asks for
PERF_SAMPLE_READ.

One uses PERF_SAMPLE_READ to sample the values of other counters
in each sample. Because of multiplexing, it is necessary to know
both time_enabled, time_running to be able to scale counts correctly.

In this second version of the patch, we maintain a shadow
copy of ctx->time which allows us to compute ctx->time without
calling update_context_time() from NMI context. We avoid the
issue that update_context_time() must always be called with
ctx->lock held.

We do not keep shadow copies of the other event timings
because if the lead event is overflowing then it is active
and thus it's been scheduled in via event_sched_in() in
which case neither tstamp_stopped, tstamp_running can be modified.

This timing logic only applies to samples when PERF_SAMPLE_READ
is used.

Note that this patch does not address timing issues related
to sampling inheritance between tasks. This will be addressed
in a future patch.

With this patch, the libpfm4 example task_smpl now reports
correct counts (shown on 2.4GHz Core 2):

$ task_smpl -p 2400000000 -e unhalted_core_cycles:u,instructions_retired:u,baclears  noploop 5
noploop for 5 seconds
IIP:0x000000004006d6 PID:5596 TID:5596 TIME:466,210,211,430 STREAM_ID:33 PERIOD:2,400,000,000 ENA=1,010,157,814 RUN=1,010,157,814 NR=3
	2,400,000,254 unhalted_core_cycles:u (33)
	2,399,273,744 instructions_retired:u (34)
	53,340 baclears (35)

Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4cc6e14b.1e07e30a.256e.5190@mx.google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-11-10 22:58:39 +01:00
Eric Dumazet
8d987e5c75 net: avoid limits overflow
Robin Holt tried to boot a 16TB machine and found some limits were
reached : sysctl_tcp_mem[2], sysctl_udp_mem[2]

We can switch infrastructure to use long "instead" of "int", now
atomic_long_t primitives are available for free.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Reported-by: Robin Holt <holt@sgi.com>
Reviewed-by: Robin Holt <holt@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-10 12:12:00 -08:00
Mark Brown
c28a9926f2 ASoC: Remove broken WM8350 direction constants
The WM8350 driver was using some custom constants to interpret the direction
of the MCLK signal which had the opposite values to those used as standard
by the ASoC core, causing confusion in machine drivers such as the 1133-EV1
board.

Reported-by: Tommy Zhu <Tommy.Zhu@wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-11-10 15:40:06 +00:00
Christoph Hellwig
02e031cbc8 block: remove REQ_HARDBARRIER
REQ_HARDBARRIER is dead now, so remove the leftovers.  What's left
at this point is:

 - various checks inside the block layer.
 - sanity checks in bio based drivers.
 - now unused bio_empty_barrier helper.
 - Xen blockfront use of BLKIF_OP_WRITE_BARRIER - it's dead for a while,
   but Xen really needs to sort out it's barrier situaton.
 - setting of ordered tags in uas - dead code copied from old scsi
   drivers.
 - scsi different retry for barriers - it's dead and should have been
   removed when flushes were converted to FS requests.
 - blktrace handling of barriers - removed.  Someone who knows blktrace
   better should add support for REQ_FLUSH and REQ_FUA, though.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-11-10 14:54:09 +01:00
Jens Axboe
00e375e7e9 Merge branch 'for-2.6.37/drivers' into for-linus
Conflicts:
	drivers/block/cciss.c

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-11-10 14:51:27 +01:00
Thomas Hellstrom
7dfbbdcffe drm/ttm: Be consistent on ttm_bo_init() failures
Call destroy() on _all_ ttm_bo_init() failures, and make sure that
behavior is documented in the function description.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-10 11:52:19 +10:00
Alan Cox
65f8e441ed tty: Fix formatting in tty.h
Someone added a new ldisc number and messed up the tabbing. Fix it before
anyone else copies it.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-09 14:36:23 -08:00
Sage Weil
c5c6b19d4b ceph: explicitly specify page alignment in network messages
The alignment used for reading data into or out of pages used to be taken
from the data_off field in the message header.  This only worked as long
as the page alignment matched the object offset, breaking direct io to
non-page aligned offsets.

Instead, explicitly specify the page alignment next to the page vector
in the ceph_msg struct, and use that instead of the message header (which
probably shouldn't be trusted).  The alloc_msg callback is responsible for
filling in this field properly when it sets up the page vector.

Signed-off-by: Sage Weil <sage@newdream.net>
2010-11-09 12:43:17 -08:00
Sage Weil
b7495fc2ff ceph: make page alignment explicit in osd interface
We used to infer alignment of IOs within a page based on the file offset,
which assumed they matched.  This broke with direct IO that was not aligned
to pages (e.g., 512-byte aligned IO).  We were also trusting the alignment
specified in the OSD reply, which could have been adjusted by the server.

Explicitly specify the page alignment when setting up OSD IO requests.

Signed-off-by: Sage Weil <sage@newdream.net>
2010-11-09 12:43:12 -08:00
Sage Weil
e98b6fed84 ceph: fix comment, remove extraneous args
The offset/length arguments aren't used.

Signed-off-by: Sage Weil <sage@newdream.net>
2010-11-09 12:24:53 -08:00
Paul Walmsley
4d17aeb1c5 OMAP: I2C: split device registration and convert OMAP2+ to omap_device
Split the OMAP1 and OMAP2+ platform_device build and register code.
Convert the OMAP2+ variant to use omap_device.

This patch was developed in collaboration with Rajendra Nayak
<rnayak@ti.com>.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-11-09 09:31:10 -08:00
Greg Kroah-Hartman
5c4dd2242a Merge branch 'musb-v2.6.37-rc2' of git://gitorious.org/usb/usb into work-linus 2010-11-09 09:28:51 -08:00
Jacob Pan
35ac6f081f mmc: sdhci: Fix crash on boot with C0 stepping Moorestown platforms
SDHC2 is newly added in C0 stepping of Langwell. Without the Moorestown
specific quirk, the default pci_probe will be called and crash the kernel.

This patch unblocks the crash problem on C0 by using the same probing
function as HC1, which limits the number of slots to one.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-09 09:33:24 -05:00
Paul Mundt
99870bd784 sh: intc: Fix up initializers for gcc 4.5.
The _INTC_ARRAY() initializer presently does a NULL test which blows up
as a non-constant initializer under gcc 4.5. This switches over to a type
test to account for NULL initializers explicitly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-09 16:38:20 +09:00
Thomas Hellstrom
3205bc242b drm/ttm: Documentation update
Remove an obsolete comment about mm nodes.
Document the new bo range manager interface.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-09 13:33:15 +10:00
Tetsuo Handa
6070bf3596 kernel: Constify temporary variable in roundup()
Fix build error with GCC 3.x caused by commit b28efd54
"kernel: roundup should only reference arguments once" by constifying
temporary variable used in that macro.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
2010-11-09 11:59:54 +11:00
Randy Dunlap
a91be2acc6 usb.h: fix ioctl kernel-doc info
Fix struct field name, prevent kernel-doc warnings.

Warning(include/linux/usb.h:865): No description found for parameter 'unlocked_ioctl'
Warning(include/linux/usb.h:865): Excess struct/union/enum/typedef member 'ioctl' description in 'usb_driver'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-08 12:28:32 -08:00
Guillaume Chazarain
18543a643f net: Detect and ignore netif_stop_queue() calls before register_netdev()
After e6484930d7: net: allocate tx queues in register_netdevice
These calls make net drivers oops at load time, so let's avoid people
git-bisect'ing known problems.

Signed-off-by: Guillaume Chazarain <guichaz@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-08 12:17:07 -08:00
Linus Torvalds
a7bcf21e60 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: Add new ext4 inode tracepoints
  ext4: Don't call sb_issue_discard() in ext4_free_blocks()
  ext4: do not try to grab the s_umount semaphore in ext4_quota_off
  ext4: fix potential race when freeing ext4_io_page structures
  ext4: handle writeback of inodes which are being freed
  ext4: initialize the percpu counters before replaying the journal
  ext4: "ret" may be used uninitialized in ext4_lazyinit_thread()
  ext4: fix lazyinit hang after removing request
2010-11-08 11:54:53 -08:00
Linus Torvalds
934648f044 Merge branch 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  mmc: sh_mmcif: Convert extern inline to static inline.
  ARM: mach-shmobile: Allow GPIO chips to register IRQ mappings.
  ARM: mach-shmobile: fix sh7372 after a recent clock framework rework
  ARM: mach-shmobile: include drivers/sh/Kconfig
  ARM: mach-shmobile: ap4evb: Add HDMI sound support
  ARM: mach-shmobile: clock-sh7372: Add FSIDIV clock support
  ARM: shmobile: remove sh_timer_config clk member
2010-11-08 10:54:23 -08:00
Theodore Ts'o
7ff9c073dd ext4: Add new ext4 inode tracepoints
Add ext4_evict_inode, ext4_drop_inode, ext4_mark_inode_dirty, and
ext4_begin_ordered_truncate()

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-11-08 13:51:33 -05:00
Paul Mundt
43b81f85eb net dst: need linux/cache.h for ____cacheline_aligned_in_smp.
Presently the b43legacy build fails on an sh randconfig:

In file included from include/net/dst.h:12,
                 from drivers/net/wireless/b43legacy/xmit.c:32:
include/net/dst_ops.h:28: error: expected ':', ',', ';', '}' or '__attribute__' before '____cacheline_aligned_in_smp'
include/net/dst_ops.h: In function 'dst_entries_get_fast':
include/net/dst_ops.h:33: error: 'struct dst_ops' has no member named 'pcpuc_entries'
include/net/dst_ops.h: In function 'dst_entries_get_slow':
include/net/dst_ops.h:41: error: 'struct dst_ops' has no member named 'pcpuc_entries'
include/net/dst_ops.h: In function 'dst_entries_add':
include/net/dst_ops.h:49: error: 'struct dst_ops' has no member named 'pcpuc_entries'
include/net/dst_ops.h: In function 'dst_entries_init':
include/net/dst_ops.h:55: error: 'struct dst_ops' has no member named 'pcpuc_entries'
include/net/dst_ops.h: In function 'dst_entries_destroy':
include/net/dst_ops.h:60: error: 'struct dst_ops' has no member named 'pcpuc_entries'
make[5]: *** [drivers/net/wireless/b43legacy/xmit.o] Error 1
make[5]: *** Waiting for unfinished jobs....

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-07 19:58:05 -08:00
Paul Mundt
65670a1b75 Merge branch 'rmobile/core' into rmobile-fixes-for-linus 2010-11-08 09:51:41 +09:00
Paul Mundt
21e1426628 Merge branches 'sh/pio-death', 'sh/nommu', 'sh/clkfwk', 'sh/core' and 'sh/intc-extension' into sh-fixes-for-linus 2010-11-08 09:42:43 +09:00
Guennadi Liakhovetski
6af26c6c99 sh: add clk_round_parent() to optimize parent clock rate
Sometimes it is possible and reasonable to adjust the parent clock rate to
improve precision of the child clock, e.g., if the child clock has no siblings.
clk_round_parent() is a new addition to the SH clock-framework API, that
implements such an optimization for child clocks with divisors, taking all
integer values in a range.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-08 09:35:26 +09:00
Linus Torvalds
4b4a2700f4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (41 commits)
  inet_diag: Make sure we actually run the same bytecode we audited.
  netlink: Make nlmsg_find_attr take a const nlmsghdr*.
  fib: fib_result_assign() should not change fib refcounts
  netfilter: ip6_tables: fix information leak to userspace
  cls_cgroup: Fix crash on module unload
  memory corruption in X.25 facilities parsing
  net dst: fix percpu_counter list corruption and poison overwritten
  rds: Remove kfreed tcp conn from list
  rds: Lost locking in loop connection freeing
  de2104x: fix panic on load
  atl1 : fix panic on load
  netxen: remove unused firmware exports
  caif: Remove noisy printout when disconnecting caif socket
  caif: SPI-driver bugfix - incorrect padding.
  caif: Bugfix for socket priority, bindtodev and dbg channel.
  smsc911x: Set Ethernet EEPROM size to supported device's size
  ipv4: netfilter: ip_tables: fix information leak to userland
  ipv4: netfilter: arp_tables: fix information leak to userland
  cxgb4vf: remove call to stop TX queues at load time.
  cxgb4: remove call to stop TX queues at load time.
  ...
2010-11-05 15:25:48 -07:00
Linus Torvalds
0660a9b16a Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile: mark "hardwall" device as non-seekable
  asm-generic/stat.h: support 64-bit file time_t for stat()
  arch/tile: don't allow user code to set the PL via ptrace or signal return
  arch/tile: correct double syscall restart for nested signals
  arch/tile: avoid __must_check warning on one strict_strtol check
  arch/tile: bomb raw_local_irq_ to arch_local_irq_
  arch/tile: complete migration to new kmap_atomic scheme
2010-11-05 09:52:25 -07:00
Bob Liu
9c7564620f USB: musb: blackfin: push clkin value to platform resources
In order to not touch the driver file for different xtal usage,
push the clkin value to board file and calculate the register
value instead of hardcoding it.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2010-11-05 14:13:32 +02:00
Nelson Elhage
6b8c92ba07 netlink: Make nlmsg_find_attr take a const nlmsghdr*.
This will let us use it on a nlmsghdr stored inside a netlink_callback.

Signed-off-by: Nelson Elhage <nelhage@ksplice.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-04 12:26:34 -07:00
Paul Mundt
2f6ba5792c mmc: sh_mmcif: Convert extern inline to static inline.
Presently the extern inline case results in a compiler warning on ARM due
to the memory barrier definition used in the I/O routines. These
ultimately all want to be static inline anyways, so just convert them all
in place.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-04 12:21:25 +09:00
Sjur Brændeland
2c24a5d1b4 caif: SPI-driver bugfix - incorrect padding.
Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-03 18:50:03 -07:00
André Carvalho de Matos
f2527ec436 caif: Bugfix for socket priority, bindtodev and dbg channel.
Changes:
o Bugfix: SO_PRIORITY for SOL_SOCKET could not be handled
  in caif's setsockopt,  using the struct sock attribute priority instead.

o Bugfix: SO_BINDTODEVICE for SOL_SOCKET could not be handled
  in caif's setsockopt,  using the struct sock attribute ifindex instead.

o Wrong assert statement for RFM layer segmentation.

o CAIF Debug channels was not working over SPI, caif_payload_info
  containing padding info must be initialized.

o Check on pointer before dereferencing when unregister dev in caif_dev.c

Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-03 18:50:03 -07:00
Dmitry Torokhov
b50b521694 Input: export input_reset_device() for use in KGDB
KGDB, much like the resume process, needs to be able to mark all keys that
were pressed at the time we dropped into the debuggers as "released", since
it is unlikely that the keys stay pressed for the entire duration of the
debug session.

Also we need to make sure that input_reset_device() and input_dev_suspend()
only attempt to change state of currenlt opened devices since closed devices
may not be ready to accept IO requests.

Tested-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-11-03 11:04:46 -07:00
Michael Hennerich
95716c0dec Input: adp5588-keys - unify common header defines
Unify adp5588-gpio and adp5588-keys common header defines (as per Andrew
Morton request). For consistency, move remaining defines and prefix
accordingly.

No functional changes.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-11-03 10:44:20 -07:00
J. Bruce Fields
21b75b0199 nfsd4: fix 4.1 connection registration race
If a connection is closed just after a sequence or create_session
is sent over it, we could end up trying to register a callback that will
never get called since the xprt is already marked dead.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2010-11-02 17:13:52 -04:00
Arnd Bergmann
7fe19da4ca preempt: fix kernel build with !CONFIG_BKL
The preempt count logic tries to take the BKL into account, which breaks
when CONFIG_BKL is not set.

Use the same preempt_count offset that we use without CONFIG_PREEMPT
when CONFIG_BKL is disabled.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reported-and-tested-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-02 08:39:13 -04:00
Chris Metcalf
2c7387ef99 asm-generic/stat.h: support 64-bit file time_t for stat()
The existing asm-generic/stat.h specifies st_mtime, etc., as a 32-value,
and works well for 32-bit architectures (currently microblaze, score,
and 32-bit tile).  However, for 64-bit architectures it isn't sufficient
to return 32 bits of time_t; this isn't good insurance against the 2037
rollover.  (It also makes glibc support less convenient, since we can't
use glibc's handy STAT_IS_KERNEL_STAT mode.)

This change extends the two "timespec" fields for each of the three atime,
mtime, and ctime fields from "int" to "long".  As a result, on 32-bit
platforms nothing changes, and 64-bit platforms will now work as expected.

The only wrinkle is 32-bit userspace under 64-bit kernels taking advantage
of COMPAT mode.  For these, we leave the "struct stat64" definitions with
the "int" versions of the time_t and nsec fields, so that architectures
can implement compat_sys_stat64() and friends with sys_stat64(), etc.,
and get the expected 32-bit structure layout.  This requires a
field-by-field copy in the kernel, implemented by the code guarded
under __ARCH_WANT_STAT64.

This does mean that the shape of the "struct stat" and "struct stat64"
structures is different on a 64-bit kernel, but only one of the two
structures should ever be used by any given process: "struct stat"
is meant for 64-bit userspace only, and "struct stat64" for 32-bit
userspace only.  (On a 32-bit kernel the two structures continue to have
the same shape, since "long" is 32 bits.)

The alternative is keeping the two structures the same shape on 64-bit
kernels, which means a 64-bit time_t in "struct stat64" for 32-bit
processes.  This is a little unnatural since 32-bit userspace can't
do anything with 64 bits of time_t information, since time_t is just
"long", not "int64_t"; and in any case 32-bit userspace might expect
to be running under a 32-bit kernel, which can't provide the high 32
bits anyway.  In the case of a 32-bit kernel we'd then be extending the
kernel's 32-bit time_t to 64 bits, then truncating it back to 32 bits
again in userspace, for no particular reason.  And, as mentioned above,
if we have 64-bit time_t for 32-bit processes we can't easily use glibc's
STAT_IS_KERNEL_STAT, since glibc's stat structure requires an embedded
"struct timespec", which is a pair of "long" (32-bit) values in a 32-bit
userspace.  "Inventive" solutions are possible, but are pretty hacky.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2010-11-01 15:31:29 -04:00
Linus Torvalds
90ae83f7fc Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6:
  spi/pl022: fix erroneous platform data in U300
  spi: fixed odd static string conventions in core code
  spi/bfin_spi: only request GPIO on first load
  spi/bfin_spi: handle error/status changes after data interrupts
  spi: enable spi_board_info to be registered after spi_master
2010-11-01 07:50:43 -04:00
Linus Torvalds
50440c6dcc Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c-i801: Add PCI idents for Patsburg 'IDF' SMBus controllers
  i2c-i801: Handle multiple instances instead of keeping global state
  i2c-i801: Add Intel Patsburg device ID
  i2c: Drop unused I2C_CLASS_TV flags
2010-10-31 21:03:23 -04:00
Linus Torvalds
ce9d8d9f72 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (70 commits)
  [SCSI] pmcraid: add support for set timestamp command and other fixes
  [SCSI] pmcraid: remove duplicate struct member
  [SCSI] qla4xxx: Fix cmd check in qla4xxx_cmd_wait
  [SCSI] megaraid_sas: Version and documentation update
  [SCSI] megaraid_sas: Add three times Online controller reset
  [SCSI] megaraid_sas: Add input parameter for max_sectors
  [SCSI] megaraid_sas: support devices update flag
  [SCSI] libosd: write/read_sg_kern API
  [SCSI] libosd: Support for scatter gather write/read commands
  [SCSI] libosd: Free resources in reverse order of allocation
  [SCSI] libosd: Fix bug in attr_page handling
  [SCSI] lpfc 8.3.18: Update lpfc driver version to 8.3.18
  [SCSI] lpfc 8.3.18: Add new WQE support
  [SCSI] lpfc 8.3.18: Fix critical errors
  [SCSI] lpfc 8.3.18: Adapter Shutdown and Unregistration cleanup
  [SCSI] lpfc 8.3.18: Add logic to detect last devloss timeout
  [SCSI] lpfc 8.3.18: Add support of received ELS commands
  [SCSI] lpfc 8.3.18: FC/FCoE Discovery fixes
  [SCSI] ipr: add definitions for a new adapter
  [SCSI] bfa: fix comments for c files
  ...
2010-10-31 20:43:12 -04:00
Linus Torvalds
82279e6bd7 Merge branches 'irq-core-for-linus' and 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  genirq: Fix up irq_node() for irq_data changes.
  genirq: Add single IRQ reservation helper
  genirq: Warn if enable_irq is called before irq is set up

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  semaphore: Remove mutex emulation
  staging: Final semaphore cleanup
  jbd2: Convert jbd2_slab_create_sem to mutex
  hpfs: Convert sbi->hpfs_creation_de to mutex

Fix up trivial change/delete conflicts with deleted 'dream' drivers
(drivers/staging/dream/camera/{mt9d112.c,mt9p012_fox.c,mt9t013.c,s5k3e2fx.c})
2010-10-31 20:40:24 -04:00
Seth Heasley
e30d9859cf i2c-i801: Add Intel Patsburg device ID
Add support for the Intel Patsburg PCH SMBus Controller.

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-10-31 21:06:59 +01:00
Jean Delvare
cbf4bd380a i2c: Drop unused I2C_CLASS_TV flags
There are no users left for I2C_CLASS_TV_ANALOG and
I2C_CLASS_TV_DIGITAL, so we can get rid of them.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-10-31 21:06:59 +01:00
Magnus Damm
03ff858c09 ARM: shmobile: remove sh_timer_config clk member
Now when the SH-Mobile ARM platforms have been converted
to use device name it is possible to remove "clk" from
struct sh_timer_config.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-10-31 10:40:39 -04:00
Christoph Hellwig
bb8430a2c8 locks: remove fl_copy_lock lock_manager operation
This one was only used for a nasty hack in nfsd, which has recently
been removed.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-31 06:35:15 -07:00
Linus Torvalds
3985c7ce85 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  isdn: mISDN: socket: fix information leak to userland
  netdev: can: Change mail address of Hans J. Koch
  pcnet_cs: add new_id
  net: Truncate recvfrom and sendto length to INT_MAX.
  RDS: Let rds_message_alloc_sgs() return NULL
  RDS: Copy rds_iovecs into kernel memory instead of rereading from userspace
  RDS: Clean up error handling in rds_cmsg_rdma_args
  RDS: Return -EINVAL if rds_rdma_pages returns an error
  net: fix rds_iovec page count overflow
  can: pch_can: fix section mismatch warning by using a whitelisted name
  can: pch_can: fix sparse warning
  netxen_nic: Fix the tx queue manipulation bug in netxen_nic_probe
  ip_gre: fix fallback tunnel setup
  vmxnet: trivial annotation of protocol constant
  vmxnet3: remove unnecessary byteswapping in BAR writing macros
  ipv6/udp: report SndbufErrors and RcvbufErrors
  phy/marvell: rename 88ec048 to 88e1318s and fix mscr1 addr
2010-10-30 18:42:58 -07:00
J. Bruce Fields
05fa3135fd locks: fix setlease methods to free passed-in lock
We modified setlease to require the caller to allocate the new lease in
the case of creating a new lease, but forgot to fix up the filesystem
methods.

Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Steve French <sfrench@samba.org>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-30 18:08:15 -07:00
Linus Torvalds
1792f17b72 Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify
* 'for-linus' of git://git.infradead.org/users/eparis/notify: (22 commits)
  Ensure FMODE_NONOTIFY is not set by userspace
  make fanotify_read() restartable across signals
  fsnotify: remove alignment padding from fsnotify_mark on 64 bit builds
  fs/notify/fanotify/fanotify_user.c: fix warnings
  fanotify: Fix FAN_CLOSE comments
  fanotify: do not recalculate the mask if the ignored mask changed
  fanotify: ignore events on directories unless specifically requested
  fsnotify: rename FS_IN_ISDIR to FS_ISDIR
  fanotify: do not send events for irregular files
  fanotify: limit number of listeners per user
  fanotify: allow userspace to override max marks
  fanotify: limit the number of marks in a single fanotify group
  fanotify: allow userspace to override max queue depth
  fsnotify: implement a default maximum queue depth
  fanotify: ignore fanotify ignore marks if open writers
  fanotify: allow userspace to flush all marks
  fsnotify: call fsnotify_parent in perm events
  fsnotify: correctly handle return codes from listeners
  fanotify: use __aligned_u64 in fanotify userspace metadata
  fanotify: implement fanotify listener ordering
  ...
2010-10-30 11:50:37 -07:00
Linus Torvalds
f02a38d86a Merge branches 'perf-fixes-for-linus' and 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  jump label: Add work around to i386 gcc asm goto bug
  x86, ftrace: Use safe noops, drop trap test
  jump_label: Fix unaligned traps on sparc.
  jump label: Make arch_jump_label_text_poke_early() optional
  jump label: Fix error with preempt disable holding mutex
  oprofile: Remove deprecated use of flush_scheduled_work()
  oprofile: Fix the hang while taking the cpu offline
  jump label: Fix deadlock b/w jump_label_mutex vs. text_mutex
  jump label: Fix module __init section race

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Check irq_remapped instead of remapping_enabled in destroy_irq()
2010-10-30 11:43:26 -07:00
Lino Sanfilippo
6bff7eccb0 Ensure FMODE_NONOTIFY is not set by userspace
In fsnotify_open() ensure that FMODE_NONOTIFY is never set by userspace.
    Also always call fsnotify_parent and fsnotify.

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Eric Paris <eparis@redhat.com>
2010-10-30 14:07:40 -04:00
Linus Torvalds
925d169f5b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (39 commits)
  Btrfs: deal with errors from updating the tree log
  Btrfs: allow subvol deletion by unprivileged user with -o user_subvol_rm_allowed
  Btrfs: make SNAP_DESTROY async
  Btrfs: add SNAP_CREATE_ASYNC ioctl
  Btrfs: add START_SYNC, WAIT_SYNC ioctls
  Btrfs: async transaction commit
  Btrfs: fix deadlock in btrfs_commit_transaction
  Btrfs: fix lockdep warning on clone ioctl
  Btrfs: fix clone ioctl where range is adjacent to extent
  Btrfs: fix delalloc checks in clone ioctl
  Btrfs: drop unused variable in block_alloc_rsv
  Btrfs: cleanup warnings from gcc 4.6 (nonbugs)
  Btrfs: Fix variables set but not read (bugs found by gcc 4.6)
  Btrfs: Use ERR_CAST helpers
  Btrfs: use memdup_user helpers
  Btrfs: fix raid code for removing missing drives
  Btrfs: Switch the extent buffer rbtree into a radix tree
  Btrfs: restructure try_release_extent_buffer()
  Btrfs: use the flusher threads for delalloc throttling
  Btrfs: tune the chunk allocation to 5% of the FS as metadata
  ...

Fix up trivial conflicts in fs/btrfs/super.c and fs/fs-writeback.c, and
remove use of INIT_RCU_HEAD in fs/btrfs/extent_io.c (that init macro was
useless and removed in commit 5e8067adfd: "rcu head remove init")
2010-10-30 09:05:48 -07:00
Linus Torvalds
847f877600 Merge branch 'audit.b64' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current
* 'audit.b64' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current:
  audit mmap
  audit: make link()/linkat() match "attribute change" predicate
  audit: Use rcu for task lookup protection
  audit: Do not send uninitialized data for AUDIT_TTY_GET
  audit: Call tty_audit_push_task() outside preempt disabled
  in untag_chunk() we need to do alloc_chunk() a bit earlier
  audit: make functions static
  Audit: add support to match lsm labels on user audit messages
2010-10-30 08:35:35 -07:00
Linus Torvalds
79346507ad Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (82 commits)
  mtd: fix build error in m25p80.c
  mtd: Remove redundant mutex from mtd_blkdevs.c
  MTD: Fix wrong check register_blkdev return value
  Revert "mtd: cleanup Kconfig dependencies"
  mtd: cfi_cmdset_0002: make sector erase command variable
  mtd: cfi_cmdset_0002: add CFI detection for SST 38VF640x chips
  mtd: cfi_util: add support for switching SST 39VF640xB chips into QRY mode
  mtd: cfi_cmdset_0001: use defined value of P_ID_INTEL_PERFORMANCE instead of hardcoded one
  block2mtd: dubious assignment
  P4080/mtd: Fix the freescale lbc issue with 36bit mode
  P4080/eLBC: Make Freescale elbc interrupt common to elbc devices
  mtd: phram: use KBUILD_MODNAME
  mtd: OneNAND: S5PC110: Fix double call suspend & resume function
  mtd: nand: fix MTD_MODE_RAW writes
  jffs2: use kmemdup
  mtd: sm_ftl: cosmetic, use bool when possible
  mtd: r852: remove useless pci powerup/down from suspend/resume routines
  mtd: blktrans: fix a race vs kthread_stop
  mtd: blktrans: kill BKL
  mtd: allow to unload the mtdtrans module if its block devices aren't open
  ...

Fix up trivial whitespace-introduced conflict in drivers/mtd/mtdchar.c
2010-10-30 08:31:35 -07:00
Linus Torvalds
706d4b12f8 Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (215 commits)
  ARM: memblock: setup lowmem mappings using memblock
  ARM: memblock: move meminfo into find_limits directly
  ARM: memblock: convert free_highpages() to use memblock
  ARM: move freeing of highmem pages out of mem_init()
  ARM: memblock: convert memory detail printing to use memblock
  ARM: memblock: use memblock to free memory into arm_bootmem_init()
  ARM: memblock: use memblock when initializing memory allocators
  ARM: ensure membank array is always sorted
  ARM: 6466/1: implement flush_icache_all for the rest of the CPUs
  ARM: 6464/2: fix spinlock recursion in adjust_pte()
  ARM: fix memblock breakage
  ARM: 6465/1: Fix data abort accessing proc_info from __lookup_processor_type
  ARM: 6460/1: ixp2000: fix type of ixp2000_timer_interrupt
  ARM: 6449/1: Fix for compiler warning of uninitialized variable.
  ARM: 6445/1: fixup TCM memory types
  ARM: imx: Add wake functionality to GPIO
  ARM: mx5: Add gpio-keys to mx51 babbage board
  ARM: imx: Add gpio-keys to plat-mxc
  mx31_3ds: Fix spi registration
  mx31_3ds: Fix the logic for detecting the debug board
  ...
2010-10-30 08:26:25 -07:00
Al Viro
120a795da0 audit mmap
Normal syscall audit doesn't catch 5th argument of syscall.  It also
doesn't catch the contents of userland structures pointed to be
syscall argument, so for both old and new mmap(2) ABI it doesn't
record the descriptor we are mapping.  For old one it also misses
flags.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-30 08:45:43 -04:00
Al Viro
af2951325b audit: make link()/linkat() match "attribute change" predicate
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-30 08:45:43 -04:00
Thomas Gleixner
3c80fe4ac9 audit: Call tty_audit_push_task() outside preempt disabled
While auditing all tasklist_lock read_lock sites I stumbled over the
following call chain:

audit_prepare_user_tty()
  read_lock(&tasklist_lock);
  tty_audit_push_task();
     mutex_lock(&buf->mutex);

     --> buf->mutex is locked with preemption disabled.

Solve this by acquiring a reference to the task struct under
rcu_read_lock and call tty_audit_push_task outside of the preempt
disabled region.

Move all code which needs to be protected by sighand lock into
tty_audit_push_task() and use lock/unlock_sighand as we do not hold
tasklist_lock.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-30 08:45:25 -04:00
David Woodhouse
67577927e8 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Conflicts:
	drivers/mtd/mtd_blkdevs.c

Merge Grant's device-tree bits so that we can apply the subsequent fixes.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-30 12:35:11 +01:00
Thomas Gleixner
4882720b26 semaphore: Remove mutex emulation
Semaphores used as mutexes have been deprecated for years. Now that
all users are either converted to real semaphores or to mutexes remove
the cruft.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Hellwig <hch@infradead.org>
LKML-Reference: <20100907125057.562399240@linutronix.de>
2010-10-30 12:12:50 +02:00
Linus Torvalds
1840897ab5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (34 commits)
  b43: Fix warning at drivers/mmc/core/core.c:237 in mmc_wait_for_cmd
  mac80211: fix failure to check kmalloc return value in key_key_read
  libertas: Fix sd8686 firmware reload
  ath9k: Fix incorrect access of rate flags in RC
  netfilter: xt_socket: Make tproto signed in socket_mt6_v1().
  stmmac: enable/disable rx/tx in the core with a single write.
  net: atarilance - flags should be unsigned long
  netxen: fix kdump
  pktgen: Limit how much data we copy onto the stack.
  net: Limit socket I/O iovec total length to INT_MAX.
  USB: gadget: fix ethernet gadget crash in gether_setup
  fib: Fix fib zone and its hash leak on namespace stop
  cxgb3: Fix panic in free_tx_desc()
  cxgb3: fix crash due to manipulating queues before registration
  8390: Don't oops on starting dev queue
  dccp ccid-2: Stop polling
  dccp: Refine the wait-for-ccid mechanism
  dccp: Extend CCID packet dequeueing interface
  dccp: Return-value convention of hc_tx_send_packet()
  igbvf: fix panic on load
  ...
2010-10-29 14:17:12 -07:00
Cyril Chemparathy
337ac9d521 phy/marvell: rename 88ec048 to 88e1318s and fix mscr1 addr
The marvell 88ec048's official part number is 88e1318s.  This patch renames
definitions in the driver to reflect this.

In addition, a minor bug fix has been added to write back the MSCR1 register
value properly.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-29 13:50:25 -07:00
Linus Torvalds
1e431a9d64 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
  kgdb,ppc: Individual register get/set for ppc
  kgdbts: prevent re-entry to kgdbts before it unregisters
  debug_core,x86,blackfin: Clean up hw debug disable API
  kdb: Fix early debugging crash regression
  kgdb,arm: fix register dump
  kdb: fix per_cpu command to remove supress mask
  kdb: Add kdb kernel module sample
2010-10-29 11:49:38 -07:00
Steven Rostedt
45f81b1c96 jump label: Add work around to i386 gcc asm goto bug
On i386 (not x86_64) early implementations of gcc would have a bug
with asm goto causing it to produce code like the following:

(This was noticed by Peter Zijlstra)

   56 pushl 0
   67 nopl         jmp 0x6f
      popl
      jmp 0x8c

   6f              mov
                   test
                   je 0x8c

   8c mov
      call *(%esp)

The jump added in the asm goto skipped over the popl that matched
the pushl 0, which lead up to a quick crash of the system when
the jump was enabled. The nopl is defined in the asm goto () statement
and when tracepoints are enabled, the nop changes to a jump to the label
that was specified by the asm goto. asm goto is suppose to tell gcc that
the code in the asm might jump to an external label. Here gcc obviously
fails to make that work.

The bug report for gcc is here:

  http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46226

The bug only appears on x86 when not compiled with
-maccumulate-outgoing-args. This option is always set on x86_64 and it
is also the work around for a function graph tracer i386 bug.
(See commit: 746357d6a5)
This explains why the bug only showed up on i386 when function graph
tracer was not enabled.

This patch now adds a CONFIG_JUMP_LABEL option that is default
off instead of using jump labels by default. When jump labels are
enabled, the -maccumulate-outgoing-args will be used (causing a
slightly larger kernel image on i386). This option will exist
until we have a way to detect if the gcc compiler in use is safe
to use on all configurations without the work around.

Note, there exists such a test, but for now we will keep the enabling
of jump label as a manual option.

Archs that know the compiler is safe with asm goto, may choose to
select JUMP_LABEL and enable it by default.

Reported-by: Ingo Molnar <mingo@elte.hu>
Cause-discovered-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Baron <jbaron@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: David Daney <ddaney@caviumnetworks.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: David Miller <davem@davemloft.net>
Cc: Richard Henderson <rth@redhat.com>
LKML-Reference: <1288028746.3673.11.camel@laptop>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-10-29 14:45:29 -04:00
Dongdong Deng
d7ba979d45 debug_core,x86,blackfin: Clean up hw debug disable API
The kgdb_disable_hw_debug() was an architecture specific function for
disabling all hardware breakpoints on a per cpu basis when entering
the debug core.

This patch will remove the weak function kdbg_disable_hw_debug() and
change it into a call back which lives with the rest of hw breakpoint
call backs in struct kgdb_arch.

Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2010-10-29 13:14:41 -05:00
Linus Torvalds
435f49a518 readv/writev: do the same MAX_RW_COUNT truncation that read/write does
We used to protect against overflow, but rather than return an error, do
what read/write does, namely to limit the total size to MAX_RW_COUNT.
This is not only more consistent, but it also means that any broken
low-level read/write routine that still keeps counts in 'int' can't
break.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-29 10:36:49 -07:00
Chris Mason
3259f8bed2 Add new functions for triggering inode writeback
When btrfs is running low on metadata space, it needs to force delayed
allocation pages to disk.  It currently does this with a suboptimal walk
of a private list of inodes with delayed allocation, and it would be
much better if we used the generic flusher threads.

writeback_inodes_sb_if_idle would be ideal, but it waits for the flusher
thread to start IO on all the dirty pages in the FS before it returns.
This adds variants of writeback_inodes_sb* that allow the caller to
control how many pages get sent down.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2010-10-29 11:25:29 -04:00
Linus Torvalds
53113b06e4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (29 commits)
  braino in internal.h
  convert simple cases of nfs-related ->get_sb() to ->mount()
  convert btrfs
  convert ceph
  convert gfs2
  convert afs
  convert ecryptfs
  convert sysfs
  convert cgroup and cpuset
  switch get_sb_ns() users
  switch procfs to ->mount()
  setting ->proc_mnt doesn't belong in proc_get_sb()
  convert cifs
  convert nilfs
  switch logfs to ->mount()
  logfs: fix a leak in get_sb
  logfs get_sb, part 3
  logfs get_sb, part 2
  logfs get_sb massage, part 1
  convert v9fs
  ...
2010-10-29 08:06:25 -07:00
Linus Torvalds
37542b6a7e Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched_stat: Update sched_info_queue/dequeue() code comments
  sched, cgroup: Fixup broken cgroup movement
2010-10-29 08:05:33 -07:00
Al Viro
ceefda6931 switch get_sb_ns() users
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-29 04:17:03 -04:00
Al Viro
51139adac9 convert get_sb_pseudo() users
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-29 04:16:33 -04:00
Al Viro
3c26ff6e49 convert get_sb_nodev() users
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-29 04:16:31 -04:00
Al Viro
fc14f2fef6 convert get_sb_single() users
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-29 04:16:28 -04:00
Al Viro
848b83a59b convert get_sb_mtd() users to ->mount()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-29 04:16:26 -04:00
Al Viro
152a083666 new helper: mount_bdev()
... and switch of the obvious get_sb_bdev() users to ->mount()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-29 04:16:13 -04:00
Al Viro
c96e41e92b beginning of transtion: ->mount()
eventual replacement for ->get_sb() - does *not* get vfsmount,
return ERR_PTR(error) or root of subtree to be mounted.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-29 04:15:06 -04:00
Linus Torvalds
18cb657ca1 Merge branch 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
and branch 'for-linus' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm

* 'for-linus' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm:
  xen: register xen pci notifier
  xen: initialize cpu masks for pv guests in xen_smp_init
  xen: add a missing #include to arch/x86/pci/xen.c
  xen: mask the MTRR feature from the cpuid
  xen: make hvc_xen console work for dom0.
  xen: add the direct mapping area for ISA bus access
  xen: Initialize xenbus for dom0.
  xen: use vcpu_ops to setup cpu masks
  xen: map a dummy page for local apic and ioapic in xen_set_fixmap
  xen: remap MSIs into pirqs when running as initial domain
  xen: remap GSIs as pirqs when running as initial domain
  xen: introduce XEN_DOM0 as a silent option
  xen: map MSIs into pirqs
  xen: support GSI -> pirq remapping in PV on HVM guests
  xen: add xen hvm acpi_register_gsi variant
  acpi: use indirect call to register gsi in different modes
  xen: implement xen_hvm_register_pirq
  xen: get the maximum number of pirqs from xen
  xen: support pirq != irq

* 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: (27 commits)
  X86/PCI: Remove the dependency on isapnp_disable.
  xen: Update Makefile with CONFIG_BLOCK dependency for biomerge.c
  MAINTAINERS: Add myself to the Xen Hypervisor Interface and remove Chris Wright.
  x86: xen: Sanitse irq handling (part two)
  swiotlb-xen: On x86-32 builts, select SWIOTLB instead of depending on it.
  MAINTAINERS: Add myself for Xen PCI and Xen SWIOTLB maintainer.
  xen/pci: Request ACS when Xen-SWIOTLB is activated.
  xen-pcifront: Xen PCI frontend driver.
  xenbus: prevent warnings on unhandled enumeration values
  xenbus: Xen paravirtualised PCI hotplug support.
  xen/x86/PCI: Add support for the Xen PCI subsystem
  x86: Introduce x86_msi_ops
  msi: Introduce default_[teardown|setup]_msi_irqs with fallback.
  x86/PCI: Export pci_walk_bus function.
  x86/PCI: make sure _PAGE_IOMAP it set on pci mappings
  x86/PCI: Clean up pci_cache_line_size
  xen: fix shared irq device passthrough
  xen: Provide a variant of xen_poll_irq with timeout.
  xen: Find an unbound irq number in reverse order (high to low).
  xen: statically initialize cpu_evtchn_mask_p
  ...

Fix up trivial conflicts in drivers/pci/Makefile
2010-10-28 17:11:17 -07:00
Mark Brown
e5b486841d mfd: Factor out WM831x I2C I/O from the core driver
In preparation for the addition of SPI support for the WM831x move the I2C
specific code into a separate file with a separate Kconfig option so the
I2C support can be excluded from the build.

Also update the 1133-EV1 PMIC module support for SMDK6410 to use the new
symbol.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-10-29 00:30:24 +02:00
Lukasz Majewski
58aa6334fb mfd: Voltages and GPIOs platform_data definitions for max8998
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-10-29 00:30:13 +02:00
Lukasz Majewski
889cd5a60f regulator: max8998 BUCK1/2 internal voltages and indexes defined
BUCK1/2 internal voltages and indexes defined in the struct max8998_data
max_get_voltage_register now uses index values to chose proper register
More generic BUCK1/2 registers names provided

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-10-29 00:30:11 +02:00
Lukasz Majewski
509bd4764c mfd: Support for ICs compliant with max8998
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-10-29 00:30:09 +02:00