Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  exit signals: use of uninitialized field notify_count
  lockdep: fix invalid list_del_rcu in zap_class
  lockstat: repair erronous contention statistics
  lockstat: fix numerical output rounding error

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: rt-bandwidth accounting fix
  sched: fix sched_rt_rq_enqueue() resched idle

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: update defconfigs
  x86: msr: fix bogus return values from rdmsr_safe/wrmsr_safe
  x86: cpuid: correct return value on partial operations
  x86: msr: correct return value on partial operations
  x86: cpuid: propagate error from smp_call_function_single()
  x86: msr: propagate errors from smp_call_function_single()
  smp: have smp_call_function_single() detect invalid CPUs

* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  i2c: Prevent log spam on some DVB adapters
  i2c: Add missing kerneldoc descriptions
  i2c: Fix device_init_wakeup place

In accordance with commit f42ac38c
("ftrace: disable tracing for suspend to ram"), disable tracing
around the suspend code in hibernation code paths.
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
Acked-by: NSteven Rostedt <srostedt@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

It fixes an accounting bug where we would continue accumulating runtime
even though the bandwidth control is disabled. This would lead to very long
throttle periods once bandwidth control gets turned on again.
Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

When sysctl_sched_rt_runtime is set to something other than -1 and the
CONFIG_RT_GROUP_SCHED kernel parameter is NOT enabled, we get into a state
where we see one or more CPUs idling forvever even though there are
real-time
tasks in their rt runqueue that are able to run (no longer throttled).

The sequence is:

- A real-time task is running when the timer sets the rt runqueue
    to throttled, and the rt task is resched_task()ed and switched
    out, and idle is switched in since there are no non-rt tasks to
    run on that cpu.

- Eventually the do_sched_rt_period_timer() runs and un-throttles
    the rt runqueue, but we just exit the timer interrupt and go back
    to executing the idle task in the idle loop forever.

If we change the sched_rt_rq_enqueue() routine to use some of the code
from the CONFIG_RT_GROUP_SCHED enabled version of this same routine and
resched_task() the currently executing task (idle in our case) if it is
a lower priority task than the higher rt task in the now un-throttled
runqueue, the problem is no longer observed.
Signed-off-by: NJohn Blackwood <john.blackwood@ccur.com>
Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Some DVB adapters do not support the special I2C transaction that we
use for probing purposes. There's no point in logging this event, as
there's nothing the user can do and in general there is no actual
problem. So, degrade one of these messages to a debug message, and
move the other one around so that it is only printed on bogus drivers.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Acked-by: NUwe Bugla <uwe.bugla@gmx.de>

Add missing kernel descriptions of struct i2c_driver members.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Acked-by: NRandy Dunlap <rdunlap@xenotime.net>
Cc: David Brownell <david-b@pacbell.net>

device_init_wakeup must be called after device_register.
Signed-off-by: NMarc Pignat <marc.pignat@hevs.ch>
Acked-by: NDavid Brownell <david-b@pacbell.net>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (55 commits)
  sctp: fix random memory dereference with SCTP_HMAC_IDENT option.
  sctp: correct bounds check in sctp_setsockopt_auth_key
  wan: Missing capability checks in sbni_ioctl()
  e100, fix iomap read
  qeth: preallocated header account offset
  qeth: l2 write unicast list to hardware
  qeth: use -EOPNOTSUPP instead of -ENOTSUPP.
  ibm_newemac: Don't call dev_mc_add() before device is registered
  net: don't grab a mutex within a timer context in gianfar
  forcedeth: fix checksum flag
  net/usb/mcs7830: add set_mac_address
  net/usb/mcs7830: new device IDs
  [netdrvr] smc91x: fix resource removal (null ptr deref)
  ibmveth: fix bad UDP checksums
  [netdrvr] hso: dev_kfree_skb crash fix
  [netdrvr] hso: icon 322 detection fix
  atl1: disable TSO by default
  atl1e: multistatement if missing braces
  igb: remove 82576 quad adapter
  drivers/net/skfp/ess.c: fix compile warnings
  ...

The number of identifiers needs to be checked against the option
length.  Also, the identifier index provided needs to be verified
to make sure that it doesn't exceed the bounds of the array.
Signed-off-by: NVlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The bonds check to prevent buffer overlflow was not exactly
right.  It still allowed overflow of up to 8 bytes which is
sizeof(struct sctp_authkey).

Since optlen is already checked against the size of that struct,
we are guaranteed not to cause interger overflow either.
Signed-off-by: NVlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Initialize the L_Key and R_Key for memory regions returned from
mlx4_ib_alloc_fast_reg_mr().  Otherwise callers just get garbage for
the memory keys and can't do anything useful with these MRs.
Signed-off-by: NVladimir Sokolovsky <vlad@mellanox.co.il>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  [WATCHDOG] removed unused #include <version.h>
  [WATCHDOG] at91rm9200_wdt.c: fix misleading indentation
  [WATCHDOG] mpc8xxx_wdt: fix modular build
  [WATCHDOG] hpwdt.c kdebug support
  [WATCHDOG] Add support for the IDT RC32434 watchdog
  [WATCHDOG] Add support for the built-int RDC R-321x SoC watchdog
  [WATHDOG] delete unused driver mpc8xx_wdt.c
  [WATCHDOG] Fix s3c2410_wdt driver coding style issues
  [WATCHDOG] Clean out header of s3c2410_wdt driver.
  [WATCHDOG] Fix NULL usage in s3c2410_wdt driver.

Kanru Chen posted a patch versus the old code which deals with the case
where you resize the pty side of a pty/tty pair. In that situation the
termios data is updated for both pty and tty but the locks are not held
for the right side.

This implements the fix differently against the updated tty code. Patch
by self but the hard bit (noticing and fixing the bug) is thanks to Kanru
Chen.
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The termios settings ioctls on a pty should affect the bound tty side not
the pty. The SOFTCAR ioctls use the wrong device file.
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] Add destroy routine for dns_resolver
  [CIFS] Reorder cifs config item for better clarity
  [CIFS] Correct keys dependency for cifs kerberos support

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
  slub: Disable NUMA remote node defragmentation by default

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  [PATCH] deal with the first call of ->show() generating no output
  [PATCH] fix ->llseek() for a bunch of directories
  [PATCH] fix regular readdir() and friends
  [PATCH] fix hpux_getdents()
  [PATCH] fix osf_getdirents()
  [PATCH] ntfs: use d_add_ci
  [PATCH] change d_add_ci argument ordering
  [PATCH] fix efs_lookup()
  [PATCH] proc: inode number fixlet

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc: Add target for a stripped kernel
  sparc64: Make NUMA depend upon SMP.

* 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm: don't set the signal blocker on the master process.
  drm: don't call the vblank tasklet with irqs disabled.
  r300: Fix cliprect emit
  drm/radeon: r300_cmdbuf: Always emit INDX_BUFFER immediately after DRAW_INDEX
  radeon: fix some hard lockups on r3/4/500s

Otherwise, we're leaking the payload memory.

CC: Stable Kernel <stable@vger.kernel.org>
Acked-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NJeff Layton <jlayton@redhat.com>
Signed-off-by: NSteve French <sfrench@us.ibm.com>

Here's the patch. It shrinks the stack from 1152 bytes to 192 bytes (the
first version, that only did the e1000_option part, got it down to 600
bytes). About half comes from not using multiple "e1000_option"
structures, the other half comes from turning the "e1000_opt_list[]"
arrays into "static const" instead, so that gcc doesn't copy them onto the
stack.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
Reveiewed-by: NAuke Kok <auke-jan.h.kok@intel.com>
Tested-by: NEmil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  block: remove blk_queue_tag_depth() and blk_queue_tag_queue()
  block: remove unused ->busy part of the block queue tag map
  bio: fix __bio_copy_iov() handling of bio->bv_len
  bio: fix bio_copy_kern() handling of bio->bv_len
  block: submit_bh() inadvertently discards barrier flag on a sync write
  block: clean up cmdfilter sysfs interface
  block: rename blk_scsi_cmd_filter to blk_cmd_filter
  sg: restore command permission for TYPE_SCANNER
  block: move cmdfilter from gendisk to request_queue

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
  ocfs2: Increment the reference count of an already-active stack.
  [PATCH] configfs: Consolidate locking around configfs_detach_prep() in configfs_rmdir()
  ocfs2: correctly set i_blocks after inline dir gets expanded
  ocfs2: Jump to correct label in ocfs2_expand_inline_dir()
  ocfs2: Fix sleep-with-spinlock recovery regression
  [PATCH] ocfs2/cluster/netdebug.c: fix warning
  [PATCH] ocfs2/cluster/tcp.c: make some functions static

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] dcss: fix build bug.
  [S390] Fix linker script.

I've been painstakingly debugging the issue with suspend to ram and
ftraced. The 2.6.28 code does not have this issue, but since the mcount
recording is not going to be in 27, this must be solved for the ftrace
daemon version.

The resume from suspend to ram would reboot because it was triple
faulting. Debugging further, I found that calling the mcount function
itself was not an issue, but it would fault when it incremented
preempt_count. preempt_count is on the tasks info structure that is on the
low memory address of the task's stack.  For some reason, it could not
write to it. Resuming out of suspend to ram does quite a lot of funny
tricks to get to work, so it is not surprising at all that simply doing a
preempt_disable() would cause a fault.

Thanks to Rafael for suggesting to add a "while (1);" to find the place in
resuming that is causing the fault. I would place the loop somewhere in
the code, compile and reboot and see if it would either reboot (hit the
fault) or simply hang (hit the loop).  Doing this over and over again, I
narrowed it down that it was happening in enable_nonboot_cpus.

At this point, I found that it is easier to simply disable tracing around
the suspend code, instead of searching for the particular function that
can not handle doing a preempt_disable.

This patch disables the tracer as it suspends and reenables it on resume.

I tested this patch on my Laptop, and it can resume fine with the patch.
Signed-off-by: NSteven Rostedt <srostedt@redhat.com>
Acked-by: NRafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This reverts commit 5b6155ee, because
the block device ioctl's really aren't ready for it.

In particular, the "struct file *" and the "struct inode *" arguments do
not necessarily match, which means that the unlocked version of the
ioctl (that only gets a "struct file *") isn't actually able to handle
the cases it needs to handle.

This fixes bugzilla

	http://bugzilla.kernel.org/show_bug.cgi?id=11401Reported-and-bisected-by: NLaurent Riffard <laurent.riffard@free.fr>
Acked-by: NPeter Osterlund <petero2@telia.com>
Cc: Alan Cox <alan@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

There are missing capability checks in the following code:

1300 static int
1301 sbni_ioctl( struct net_device  *dev,  struct ifreq  *ifr,  int  cmd)
1302 {
[...]
1319     case  SIOCDEVRESINSTATS :
1320         if( current->euid != 0 )    /* root only */
1321             return  -EPERM;
[...]
1336     case  SIOCDEVSHWSTATE :
1337         if( current->euid != 0 )    /* root only */
1338             return  -EPERM;
[...]
1357     case  SIOCDEVENSLAVE :
1358         if( current->euid != 0 )    /* root only */
1359             return  -EPERM;
[...]
1372     case  SIOCDEVEMANSIPATE :
1373         if( current->euid != 0 )    /* root only */
1374             return  -EPERM;

Here's my proposed fix:

Missing capability checks.
Signed-off-by: NEugene Teo <eugeneteo@kernel.sg>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There were 2 omitted readb's used on an iomap space. eliminate them
by using ioread8 instead.
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Bruce Allan <bruce.w.allan@intel.com>
Cc: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
Cc: John Ronciak <john.ronciak@intel.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

When a preallocated header qdio buffer is filled we have to account
the offset for the data length.
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

In case the netdev unicast list contains additional entries we have
to register/deregister them.
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

return value -ENOTSUPP is not valid in userspace context, use
-EOPNOTSUPP instead.
Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

We must not call dev_mc_add() from within our HW configure which happens
before we initialize and register the netdev. Do it in open() instead.

Thanks to Sebastian Siewior for tracking it down.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

I got the following backtrace while network was unavailble:

|NETDEV WATCHDOG: eth0: transmit timed out
|BUG: sleeping function called from invalid context at /home/bigeasy/git/linux-2.6-powerpc/kernel/mutex.c:87
|in_atomic():1, irqs_disabled():0
|Call Trace:
|[c0383d90] [c0006dd8] show_stack+0x48/0x184 (unreliable)
|[c0383db0] [c001e938] __might_sleep+0xe0/0xf4
|[c0383dc0] [c025a43c] mutex_lock+0x24/0x3c
|[c0383de0] [c019005c] phy_stop+0x20/0x70
|[c0383df0] [c018d4ec] stop_gfar+0x28/0xf4
|[c0383e10] [c018e8c4] gfar_timeout+0x30/0x60
|[c0383e20] [c01fe7c0] dev_watchdog+0xa8/0x144
|[c0383e30] [c002f93c] run_timer_softirq+0x148/0x1c8
|[c0383e60] [c002b084] __do_softirq+0x5c/0xc4
|[c0383e80] [c00046fc] do_softirq+0x3c/0x54
|[c0383e90] [c002ac60] irq_exit+0x3c/0x5c
|[c0383ea0] [c000b378] timer_interrupt+0xe0/0xf8
|[c0383ec0] [c000e5ac] ret_from_except+0x0/0x18
|[c0383f80] [c000804c] cpu_idle+0xcc/0xdc
|[c0383fa0] [c025c07c] etext+0x7c/0x90
|[c0383fc0] [c0338960] start_kernel+0x294/0x2a8
|[c0383ff0] [c00003dc] skpinv+0x304/0x340
|------------[ cut here ]------------

The phylock was once a spinlock but got changed into a mutex via
commit 35b5f6b1 aka [PHYLIB: Locking fixes for PHY I/O potentially sleeping]
Signed-off-by: NSebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Fix the checksum feature advertised in device flags.  The hardware support
TCP/UDP over IPv4 and TCP/UDP over IPv6 (without IPv6 extension headers).
However, the kernel feature flags do not distinguish IPv6 with/without
extension headers.

Therefore, the driver needs to use NETIF_F_IP_CSUM instead of
NETIF_F_HW_CSUM since the latter includes all IPv6 packets.

A future patch can be created to check for extension headers and perform
software checksum calculation.
Signed-off-by: NAyaz Abdulla <aabdulla@nvidia.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Manfred Spraul <manfred@colorfullife.com
Cc: <stable@kernel.org>		[2.6.25.x, 2.6.26.x]
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Implement set_mac_address for mcs7830. This enables me to use it with my
cable modem.
Signed-off-by: NOliver Martin <oliver.martin@student.tuwien.ac.at>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>