firefly-linux-kernel-4.4.55.git
11 years agom32r: make memset() global for CONFIG_KERNEL_BZIP2=y
Geert Uytterhoeven [Tue, 17 Jul 2012 22:48:05 +0000 (15:48 -0700)]
m32r: make memset() global for CONFIG_KERNEL_BZIP2=y

Fix the m32r compile error:

  arch/m32r/boot/compressed/misc.c:31:14: error: static declaration of 'memset' follows non-static declaration
  make[5]: *** [arch/m32r/boot/compressed/misc.o] Error 1
  make[4]: *** [arch/m32r/boot/compressed/vmlinux] Error 2

by removing the static keyword.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agom32r: add memcpy() for CONFIG_KERNEL_GZIP=y
Geert Uytterhoeven [Tue, 17 Jul 2012 22:48:04 +0000 (15:48 -0700)]
m32r: add memcpy() for CONFIG_KERNEL_GZIP=y

Fix the m32r link error:

    LD      arch/m32r/boot/compressed/vmlinux
  arch/m32r/boot/compressed/misc.o: In function `zlib_updatewindow':
  misc.c:(.text+0x190): undefined reference to `memcpy'
  misc.c:(.text+0x190): relocation truncated to fit: R_M32R_26_PLTREL against undefined symbol `memcpy'
  make[5]: *** [arch/m32r/boot/compressed/vmlinux] Error 1

by adding our own implementation of memcpy().

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agom32r: consistently use "suffix-$(...)"
Geert Uytterhoeven [Tue, 17 Jul 2012 22:48:02 +0000 (15:48 -0700)]
m32r: consistently use "suffix-$(...)"

Commit a556bec9955c ("m32r: fix arch/m32r/boot/compressed/Makefile")
changed "$(suffix_y)" to "$(suffix-y)", but didn't update any location
where "suffix_y" is set, causing:

  make[5]: *** No rule to make target `arch/m32r/boot/compressed/vmlinux.bin.', needed by `arch/m32r/boot/compressed/piggy.o'.  Stop.
  make[4]: *** [arch/m32r/boot/compressed/vmlinux] Error 2
  make[3]: *** [zImage] Error 2

Correct the other locations to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agom32r: fix 'fix breakage from "m32r: use generic ptrace_resume code"' fallout
Geert Uytterhoeven [Tue, 17 Jul 2012 22:48:00 +0000 (15:48 -0700)]
m32r: fix 'fix breakage from "m32r: use generic ptrace_resume code"' fallout

Commit acdc0d5ef9dd ('m32r: fix breakage from "m32r: use generic
ptrace_resume code"') tried to fix a problem in commit e34112e3966fc
("m32r: use generic ptrace_resume code") by returning values in a
function returning void, causing:

  arch/m32r/kernel/ptrace.c: In function 'user_enable_single_step':
  arch/m32r/kernel/ptrace.c:594:3: warning: 'return' with a value, in function returning void [enabled by default]
  arch/m32r/kernel/ptrace.c:598:3: warning: 'return' with a value, in function returning void [enabled by default]
  arch/m32r/kernel/ptrace.c:601:3: warning: 'return' with a value, in function returning void [enabled by default]
  arch/m32r/kernel/ptrace.c:604:2: warning: 'return' with a value, in function returning void [enabled by default]

Remove the unneeded return values.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agom32r: fix pull clearing RESTORE_SIGMASK into block_sigmask() fallout
Geert Uytterhoeven [Tue, 17 Jul 2012 22:47:59 +0000 (15:47 -0700)]
m32r: fix pull clearing RESTORE_SIGMASK into block_sigmask() fallout

Commit a610d6e672d6 ("pull clearing RESTORE_SIGMASK into
block_sigmask()") caused:

  arch/m32r/kernel/signal.c: In function 'handle_signal':
  arch/m32r/kernel/signal.c:289:6: warning: 'return' with a value, in function returning void [enabled by default]

Remove the return value it forgot to remove.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agom32r: remove duplicate definition of PTRACE_O_TRACESYSGOOD
Geert Uytterhoeven [Tue, 17 Jul 2012 22:47:57 +0000 (15:47 -0700)]
m32r: remove duplicate definition of PTRACE_O_TRACESYSGOOD

Fix the m32r build warning:

  include/linux/ptrace.h:66:0: warning: "PTRACE_O_TRACESYSGOOD" redefined [enabled by default]
  arch/m32r/include/asm/ptrace.h:117:0: note: this is the location of the previous definition

We already have it in <linux/ptrace.h>, so remove it from <asm/ptrace.h>

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomn10300: fix "pull clearing RESTORE_SIGMASK into block_sigmask()" fallout
Geert Uytterhoeven [Tue, 17 Jul 2012 22:47:54 +0000 (15:47 -0700)]
mn10300: fix "pull clearing RESTORE_SIGMASK into block_sigmask()" fallout

Commit a610d6e672d6 ("pull clearing RESTORE_SIGMASK into
block_sigmask()") caused:

  arch/mn10300/kernel/signal.c: In function 'handle_signal':
  arch/mn10300/kernel/signal.c:462:3: warning: 'return' with no value, in function returning non-void [-Wreturn-type]

Add the missing return values, and restore the indentation while we're
at it.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agobootmem: make ___alloc_bootmem_node_nopanic() really nopanic
Yinghai Lu [Tue, 17 Jul 2012 22:47:51 +0000 (15:47 -0700)]
bootmem: make ___alloc_bootmem_node_nopanic() really nopanic

In reaction to commit 99ab7b19440a ("mm: sparse: fix usemap allocation
above node descriptor section") Johannes said:
| while backporting the below patch, I realised that your fix busted
f5bf18fa22f8 again.  The problem was not a panicking version on
| allocation failure but when the usemap size was too large such that
| goal + size > limit triggers the BUG_ON in the bootmem allocator.  So
| we need a version that passes limit ONLY if the usemap is smaller than
| the section.

after checking the code, the name of ___alloc_bootmem_node_nopanic()
does not reflect the fact.

Make bootmem really not panic.

Hope will kill bootmem sooner.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@vger.kernel.org> [3.3.x, 3.4.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge tag 'pm-post-3.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Tue, 17 Jul 2012 21:15:43 +0000 (14:15 -0700)]
Merge tag 'pm-post-3.5-rc7' of git://git./linux/kernel/git/rafael/linux-pm

Pull a last-minute PM update from Rafael J. Wysocki:
 "This renames CAP_EPOLLWAKEUP to CAP_BLOCK_SUSPEND to encourage future
  reuse of the capability in question in related cases."

* tag 'pm-post-3.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: Rename CAP_EPOLLWAKEUP to CAP_BLOCK_SUSPEND

11 years agoPM: Rename CAP_EPOLLWAKEUP to CAP_BLOCK_SUSPEND
Michael Kerrisk [Tue, 17 Jul 2012 19:37:27 +0000 (21:37 +0200)]
PM: Rename CAP_EPOLLWAKEUP to CAP_BLOCK_SUSPEND

As discussed in
http://thread.gmane.org/gmane.linux.kernel/1249726/focus=1288990,
the capability introduced in 4d7e30d98939a0340022ccd49325a3d70f7e0238
to govern EPOLLWAKEUP seems misnamed: this capability is about governing
the ability to suspend the system, not using a particular API flag
(EPOLLWAKEUP). We should make the name of the capability more general
to encourage reuse in related cases. (Whether or not this capability
should also be used to govern the use of /sys/power/wake_lock is a
question that needs to be separately resolved.)

This patch renames the capability to CAP_BLOCK_SUSPEND. In order to ensure
that the old capability name doesn't make it out into the wild, could you
please apply and push up the tree to ensure that it is incorporated
for the 3.5 release.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Tue, 17 Jul 2012 15:44:51 +0000 (08:44 -0700)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) IPVS oops'ers:
   a) Should not reset skb->nf_bridge in forwarding hook (Lin Ming)
   b) 3.4 commit can cause ip_vs_control_cleanup to be invoked after
      the ipvs_core_ops are unregistered during rmmod (Julian ANastasov)

 2) ixgbevf bringup failure can crash in TX descriptor cleanup
    (Alexander Duyck)

 3) AX25 switch missing break statement hoses ROSE sockets (Alan Cox)

 4) CAIF accesses freed per-net memory (Sjur Brandeland)

 5) Network cgroup code has out-or-bounds accesses (Eric DUmazet), and
    accesses freed memory (Gao Feng)

 6) Fix a crash in SCTP reported by Dave Jones caused by freeing an
    association still on a list (Neil HOrman)

 7) __netdev_alloc_skb() regresses on GFP_DMA using drivers because that
    GFP flag is not being retained for the allocation (Eric Dumazet).

 8) Missing NULL hceck in sch_sfb netlink message parsing (Alan Cox)

 9) bnx2 crashes because TX index iteration is not bounded correctly
    (Michael Chan)

10) IPoIB generates warnings in TCP queue collapsing (via
    skb_try_coalesce) because it does not set skb->truesize correctly
    (Eric Dumazet)

11) vlan_info objects leak for the implicit vlan with ID 0 (Amir
    Hanania)

12) A fix for TX time stamp handling in gianfar does not transfer socket
    ownership from one packet to another correctly, resulting in a
    socket write space imbalance (Eric Dumazet)

13) Julia Lawall found several cases where we do a list iteration, and
    then at the loop termination unconditionally assume we ended up with
    real list object, rather than the list head itself (CNIC, RXRPC,
    mISDN).

14) The bonding driver handles procfs moving incorrectly when a device
    it manages is moved from one namespace to another (Eric Biederman)

15) Missing memory barriers in stmmac descriptor accesses result in
    various crashes (Deepak Sikri)

16) Fix handling of broadcast packets in batman-adv (Simon Wunderlich)

17) Properly check the sanity of sendmsg() lengths in ieee802154's
    dgram_sendmsg().  Dave Jones and others have hit and reported this
    bug (Sasha Levin)

18) Some drivers (b44 and b43legacy) on 64-bit machines stopped working
    because of how netdev_alloc_skb() was adjusted.  Such drivers should
    now use alloc_skb() for obtaining bounce buffers.  (Eric Dumazet)

19) atl1c mis-managed it's link state in that it stops the queue by hand
    on link down.  The generic networking takes care of that and this
    double stop locks the queue down.  So simply removing the driver's
    queue stop call fixes the problem (Cloud Ren)

20) Fix out-of-memory due to mis-accounting in net_em packet scheduler
    (Eric Dumazet)

21) If DCB and SR-IOV are configured at the same time in IXGBE the chip
    will hang because this is not supported (Alexander Duyck)

22) A commit to stop drivers using netdev->base_addr broke the CNIC
    driver (Michael Chan)

23) Timeout regression in ipset caused by an attempt to fix an overflow
    bug (Jozsef Kadlecsik).

24) mac80211 minstrel code allocates memory using incorrect size
    (Thomas Huehn)

25) llcp_sock_getname() needs to check for a NULL device otherwise we
    OOPS (Sasha Levin)

26) mwifiex leaks memory (Bing Zhao)

27) Propagate iwlwifi fix to iwlegacy, even when we're not associated
    we need to monitor for stuck queues in the watchdog handler
    (Stanislaw Geuszka)

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits)
  ipvs: fix oops in ip_vs_dst_event on rmmod
  ipvs: fix oops on NAT reply in br_nf context
  ixgbevf: Fix panic when loading driver
  ax25: Fix missing break
  MAINTAINERS: reflect actual changes in IEEE 802.15.4 maintainership
  caif: Fix access to freed pernet memory
  net: cgroup: fix access the unallocated memory in netprio cgroup
  ixgbevf: Prevent RX/TX statistics getting reset to zero
  sctp: Fix list corruption resulting from freeing an association on a list
  net: respect GFP_DMA in __netdev_alloc_skb()
  e1000e: fix test for PHY being accessible on 82577/8/9 and I217
  e1000e: Correct link check logic for 82571 serdes
  sch_sfb: Fix missing NULL check
  bnx2: Fix bug in bnx2_free_tx_skbs().
  IPoIB: fix skb truesize underestimatiom
  net: Fix memory leak - vlan_info struct
  gianfar: fix potential sk_wmem_alloc imbalance
  drivers/net/ethernet/broadcom/cnic.c: remove invalid reference to list iterator variable
  net/rxrpc/ar-peer.c: remove invalid reference to list iterator variable
  drivers/isdn/mISDN/stack.c: remove invalid reference to list iterator variable
  ...

11 years agoMerge tag 'single-rpmsg-3.5-fix' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 17 Jul 2012 15:44:07 +0000 (08:44 -0700)]
Merge tag 'single-rpmsg-3.5-fix' of git://git./linux/kernel/git/ohad/rpmsg

Pull rpmsg fix from Ohad Ben-Cohen:
 "A single rpmsg fix for 3.5, coming from Federico Fuga, which
  eliminates the dependency on arbitrary initialization orders."

* tag 'single-rpmsg-3.5-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg:
  rpmsg: fix dependency on initialization order

11 years agoMerge branch 'fixes-for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma...
Linus Torvalds [Tue, 17 Jul 2012 15:43:12 +0000 (08:43 -0700)]
Merge branch 'fixes-for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping

Pull CMA and DMA-mapping fixes from Marek Szyprowski:
 "Another set of minor fixups for recently merged Contiguous Memory
  Allocator and ARM DMA-mapping changes.  Those patches fix mysterious
  crashes on systems with CMA and Himem enabled as well as some corner
  cases caused by typical off-by-one bug."

* 'fixes-for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
  ARM: dma-mapping: modify condition check while freeing pages
  mm: cma: fix condition check when setting global cma area
  mm: cma: don't replace lowmem pages with highmem

11 years agoMerge branch 'master' of git://1984.lsi.us.es/nf
David S. Miller [Tue, 17 Jul 2012 10:19:33 +0000 (03:19 -0700)]
Merge branch 'master' of git://1984.lsi.us.es/nf

Pablo Neira Ayuso says:

====================
I know that we're in fairly late stage to request pulls, but the IPVS people
pinged me with little patches with oops fixes last week.

One of them was recently introduced (during the 3.4 development cycle) while
cleaning up the IPVS netns support. They are:

* Fix one regression introduced in 3.4 while cleaning up the
  netns support for IPVS, from Julian Anastasov.

* Fix one oops triggered due to resetting the conntrack attached to the skb
  instead of just putting it in the forward hook, from Lin Ming. This problem
  seems to be there since 2.6.37 according to Simon Horman.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agorpmsg: fix dependency on initialization order
Federico Fuga [Mon, 16 Jul 2012 07:36:51 +0000 (10:36 +0300)]
rpmsg: fix dependency on initialization order

When rpmsg drivers are built into the kernel, they must not initialize
before the rpmsg bus does, otherwise they'd trigger a BUG() in
drivers/base/driver.c line 169 (driver_register()).

To fix that, and to stop depending on arbitrary linkage ordering of
those built-in rpmsg drivers, we make the rpmsg bus initialize at
subsys_initcall.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Federico Fuga <fuga@studiofuga.com>
[ohad: rewrite the commit log]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
11 years agoipvs: fix oops in ip_vs_dst_event on rmmod
Julian Anastasov [Sat, 7 Jul 2012 17:30:11 +0000 (20:30 +0300)]
ipvs: fix oops in ip_vs_dst_event on rmmod

After commit 39f618b4fd95ae243d940ec64c961009c74e3333 (3.4)
"ipvs: reset ipvs pointer in netns" we can oops in
ip_vs_dst_event on rmmod ip_vs because ip_vs_control_cleanup
is called after the ipvs_core_ops subsys is unregistered and
net->ipvs is NULL. Fix it by exiting early from ip_vs_dst_event
if ipvs is NULL. It is safe because all services and dests
for the net are already freed.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
11 years agoipvs: fix oops on NAT reply in br_nf context
Lin Ming [Sat, 7 Jul 2012 10:26:10 +0000 (18:26 +0800)]
ipvs: fix oops on NAT reply in br_nf context

IPVS should not reset skb->nf_bridge in FORWARD hook
by calling nf_reset for NAT replies. It triggers oops in
br_nf_forward_finish.

[  579.781508] BUG: unable to handle kernel NULL pointer dereference at 0000000000000004
[  579.781669] IP: [<ffffffff817b1ca5>] br_nf_forward_finish+0x58/0x112
[  579.781792] PGD 218f9067 PUD 0
[  579.781865] Oops: 0000 [#1] SMP
[  579.781945] CPU 0
[  579.781983] Modules linked in:
[  579.782047]
[  579.782080]
[  579.782114] Pid: 4644, comm: qemu Tainted: G        W    3.5.0-rc5-00006-g95e69f9 #282 Hewlett-Packard  /30E8
[  579.782300] RIP: 0010:[<ffffffff817b1ca5>]  [<ffffffff817b1ca5>] br_nf_forward_finish+0x58/0x112
[  579.782455] RSP: 0018:ffff88007b003a98  EFLAGS: 00010287
[  579.782541] RAX: 0000000000000008 RBX: ffff8800762ead00 RCX: 000000000001670a
[  579.782653] RDX: 0000000000000000 RSI: 000000000000000a RDI: ffff8800762ead00
[  579.782845] RBP: ffff88007b003ac8 R08: 0000000000016630 R09: ffff88007b003a90
[  579.782957] R10: ffff88007b0038e8 R11: ffff88002da37540 R12: ffff88002da01a02
[  579.783066] R13: ffff88002da01a80 R14: ffff88002d83c000 R15: ffff88002d82a000
[  579.783177] FS:  0000000000000000(0000) GS:ffff88007b000000(0063) knlGS:00000000f62d1b70
[  579.783306] CS:  0010 DS: 002b ES: 002b CR0: 000000008005003b
[  579.783395] CR2: 0000000000000004 CR3: 00000000218fe000 CR4: 00000000000027f0
[  579.783505] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  579.783684] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  579.783795] Process qemu (pid: 4644, threadinfo ffff880021b20000, task ffff880021aba760)
[  579.783919] Stack:
[  579.783959]  ffff88007693cedc ffff8800762ead00 ffff88002da01a02 ffff8800762ead00
[  579.784110]  ffff88002da01a02 ffff88002da01a80 ffff88007b003b18 ffffffff817b26c7
[  579.784260]  ffff880080000000 ffffffff81ef59f0 ffff8800762ead00 ffffffff81ef58b0
[  579.784477] Call Trace:
[  579.784523]  <IRQ>
[  579.784562]
[  579.784603]  [<ffffffff817b26c7>] br_nf_forward_ip+0x275/0x2c8
[  579.784707]  [<ffffffff81704b58>] nf_iterate+0x47/0x7d
[  579.784797]  [<ffffffff817ac32e>] ? br_dev_queue_push_xmit+0xae/0xae
[  579.784906]  [<ffffffff81704bfb>] nf_hook_slow+0x6d/0x102
[  579.784995]  [<ffffffff817ac32e>] ? br_dev_queue_push_xmit+0xae/0xae
[  579.785175]  [<ffffffff8187fa95>] ? _raw_write_unlock_bh+0x19/0x1b
[  579.785179]  [<ffffffff817ac417>] __br_forward+0x97/0xa2
[  579.785179]  [<ffffffff817ad366>] br_handle_frame_finish+0x1a6/0x257
[  579.785179]  [<ffffffff817b2386>] br_nf_pre_routing_finish+0x26d/0x2cb
[  579.785179]  [<ffffffff817b2cf0>] br_nf_pre_routing+0x55d/0x5c1
[  579.785179]  [<ffffffff81704b58>] nf_iterate+0x47/0x7d
[  579.785179]  [<ffffffff817ad1c0>] ? br_handle_local_finish+0x44/0x44
[  579.785179]  [<ffffffff81704bfb>] nf_hook_slow+0x6d/0x102
[  579.785179]  [<ffffffff817ad1c0>] ? br_handle_local_finish+0x44/0x44
[  579.785179]  [<ffffffff81551525>] ? sky2_poll+0xb35/0xb54
[  579.785179]  [<ffffffff817ad62a>] br_handle_frame+0x213/0x229
[  579.785179]  [<ffffffff817ad417>] ? br_handle_frame_finish+0x257/0x257
[  579.785179]  [<ffffffff816e3b47>] __netif_receive_skb+0x2b4/0x3f1
[  579.785179]  [<ffffffff816e69fc>] process_backlog+0x99/0x1e2
[  579.785179]  [<ffffffff816e6800>] net_rx_action+0xdf/0x242
[  579.785179]  [<ffffffff8107e8a8>] __do_softirq+0xc1/0x1e0
[  579.785179]  [<ffffffff8135a5ba>] ? trace_hardirqs_off_thunk+0x3a/0x6c
[  579.785179]  [<ffffffff8188812c>] call_softirq+0x1c/0x30

The steps to reproduce as follow,

1. On Host1, setup brige br0(192.168.1.106)
2. Boot a kvm guest(192.168.1.105) on Host1 and start httpd
3. Start IPVS service on Host1
   ipvsadm -A -t 192.168.1.106:80 -s rr
   ipvsadm -a -t 192.168.1.106:80 -r 192.168.1.105:80 -m
4. Run apache benchmark on Host2(192.168.1.101)
   ab -n 1000 http://192.168.1.106/

ip_vs_reply4
  ip_vs_out
    handle_response
      ip_vs_notrack
        nf_reset()
        {
          skb->nf_bridge = NULL;
        }

Actually, IPVS wants in this case just to replace nfct
with untracked version. So replace the nf_reset(skb) call
in ip_vs_notrack() with a nf_conntrack_put(skb->nfct) call.

Signed-off-by: Lin Ming <mlin@ss.pku.edu.cn>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
11 years agoixgbevf: Fix panic when loading driver
Alexander Duyck [Mon, 16 Jul 2012 23:44:48 +0000 (23:44 +0000)]
ixgbevf: Fix panic when loading driver

This patch addresses a kernel panic seen when setting up the interface.
Specifically we see a NULL pointer dereference on the Tx descriptor cleanup
path when enabling interrupts.  This change corrects that so it cannot
occur.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoax25: Fix missing break
Alan Cox [Fri, 13 Jul 2012 06:33:08 +0000 (06:33 +0000)]
ax25: Fix missing break

At least there seems to be no reason to disallow ROSE sockets when
NETROM is loaded.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMAINTAINERS: reflect actual changes in IEEE 802.15.4 maintainership
Dmitry Eremin-Solenikov [Fri, 13 Jul 2012 20:15:34 +0000 (20:15 +0000)]
MAINTAINERS: reflect actual changes in IEEE 802.15.4 maintainership

As the life flows, developers priorities shifts a bit. Reflect actual
changes in the maintainership of IEEE 802.15.4 code: Sergey mostly
stopped cared about this piece of code. Most of the work recently was
done by Alexander, so put him to the MAINTAINERS file to reflect his
status and to ease the life of respective patches.

Also add new net/mac802154/ directory to the list of maintained files.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net
David S. Miller [Tue, 17 Jul 2012 06:18:47 +0000 (23:18 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net

Jeff Kirsher says:

====================
This series contains fixes to e1000e.
 ...
Bruce Allan (1):
  e1000e: fix test for PHY being accessible on 82577/8/9 and I217

Tushar Dave (1):
  e1000e: Correct link check logic for 82571 serdes
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocaif: Fix access to freed pernet memory
Sjur Brændeland [Sun, 15 Jul 2012 10:10:14 +0000 (10:10 +0000)]
caif: Fix access to freed pernet memory

unregister_netdevice_notifier() must be called before
unregister_pernet_subsys() to avoid accessing already freed
pernet memory. This fixes the following oops when doing rmmod:

Call Trace:
 [<ffffffffa0f802bd>] caif_device_notify+0x4d/0x5a0 [caif]
 [<ffffffff81552ba9>] unregister_netdevice_notifier+0xb9/0x100
 [<ffffffffa0f86dcc>] caif_device_exit+0x1c/0x250 [caif]
 [<ffffffff810e7734>] sys_delete_module+0x1a4/0x300
 [<ffffffff810da82d>] ? trace_hardirqs_on_caller+0x15d/0x1e0
 [<ffffffff813517de>] ? trace_hardirqs_on_thunk+0x3a/0x3
 [<ffffffff81696bad>] system_call_fastpath+0x1a/0x1f

RIP
 [<ffffffffa0f7f561>] caif_get+0x51/0xb0 [caif]

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: cgroup: fix access the unallocated memory in netprio cgroup
Gao feng [Wed, 11 Jul 2012 21:50:15 +0000 (21:50 +0000)]
net: cgroup: fix access the unallocated memory in netprio cgroup

there are some out of bound accesses in netprio cgroup.

now before accessing the dev->priomap.priomap array,we only check
if the dev->priomap exist.and because we don't want to see
additional bound checkings in fast path, so we should make sure
that dev->priomap is null or array size of dev->priomap.priomap
is equal to max_prioidx + 1;

so in write_priomap logic,we should call extend_netdev_table when
dev->priomap is null and dev->priomap.priomap_len < max_len.
and in cgrp_create->update_netdev_tables logic,we should call
extend_netdev_table only when dev->priomap exist and
dev->priomap.priomap_len < max_len.

and it's not needed to call update_netdev_tables in write_priomap,
we can only allocate the net device's priomap which we change through
net_prio.ifpriomap.

this patch also add a return value for update_netdev_tables &
extend_netdev_table, so when new_priomap is allocated failed,
write_priomap will stop to access the priomap,and return -ENOMEM
back to the userspace to tell the user what happend.

Change From v3:
1. add rtnl protect when reading max_prioidx in write_priomap.

2. only call extend_netdev_table when map->priomap_len < max_len,
   this will make sure array size of dev->map->priomap always
   bigger than any prioidx.

3. add a function write_update_netdev_table to make codes clear.

Change From v2:
1. protect extend_netdev_table by RTNL.
2. when extend_netdev_table failed,call dev_put to reduce device's refcount.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Eric Dumazet <edumazet@google.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoixgbevf: Prevent RX/TX statistics getting reset to zero
Narendra K [Mon, 16 Jul 2012 15:24:41 +0000 (15:24 +0000)]
ixgbevf: Prevent RX/TX statistics getting reset to zero

The commit 4197aa7bb81877ebb06e4f2cc1b5fea2da23a7bd implements 64 bit
per ring statistics. But the driver resets the 'total_bytes' and
'total_packets' from RX and TX rings in the RX and TX interrupt
handlers to zero. This results in statistics being lost and user space
reporting RX and TX statistics as zero. This patch addresses the
issue by preventing the resetting of RX and TX ring statistics to
zero.

Signed-off-by: Narendra K <narendra_k@dell.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosctp: Fix list corruption resulting from freeing an association on a list
Neil Horman [Mon, 16 Jul 2012 09:13:51 +0000 (09:13 +0000)]
sctp: Fix list corruption resulting from freeing an association on a list

A few days ago Dave Jones reported this oops:

[22766.294255] general protection fault: 0000 [#1] PREEMPT SMP
[22766.295376] CPU 0
[22766.295384] Modules linked in:
[22766.387137]  ffffffffa169f292 6b6b6b6b6b6b6b6b ffff880147c03a90
ffff880147c03a74
[22766.387135] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000
[22766.387136] Process trinity-watchdo (pid: 10896, threadinfo ffff88013e7d2000,
[22766.387137] Stack:
[22766.387140]  ffff880147c03a10
[22766.387140]  ffffffffa169f2b6
[22766.387140]  ffff88013ed95728
[22766.387143]  0000000000000002
[22766.387143]  0000000000000000
[22766.387143]  ffff880003fad062
[22766.387144]  ffff88013c120000
[22766.387144]
[22766.387145] Call Trace:
[22766.387145]  <IRQ>
[22766.387150]  [<ffffffffa169f292>] ? __sctp_lookup_association+0x62/0xd0
[sctp]
[22766.387154]  [<ffffffffa169f2b6>] __sctp_lookup_association+0x86/0xd0 [sctp]
[22766.387157]  [<ffffffffa169f597>] sctp_rcv+0x207/0xbb0 [sctp]
[22766.387161]  [<ffffffff810d4da8>] ? trace_hardirqs_off_caller+0x28/0xd0
[22766.387163]  [<ffffffff815827e3>] ? nf_hook_slow+0x133/0x210
[22766.387166]  [<ffffffff815902fc>] ? ip_local_deliver_finish+0x4c/0x4c0
[22766.387168]  [<ffffffff8159043d>] ip_local_deliver_finish+0x18d/0x4c0
[22766.387169]  [<ffffffff815902fc>] ? ip_local_deliver_finish+0x4c/0x4c0
[22766.387171]  [<ffffffff81590a07>] ip_local_deliver+0x47/0x80
[22766.387172]  [<ffffffff8158fd80>] ip_rcv_finish+0x150/0x680
[22766.387174]  [<ffffffff81590c54>] ip_rcv+0x214/0x320
[22766.387176]  [<ffffffff81558c07>] __netif_receive_skb+0x7b7/0x910
[22766.387178]  [<ffffffff8155856c>] ? __netif_receive_skb+0x11c/0x910
[22766.387180]  [<ffffffff810d423e>] ? put_lock_stats.isra.25+0xe/0x40
[22766.387182]  [<ffffffff81558f83>] netif_receive_skb+0x23/0x1f0
[22766.387183]  [<ffffffff815596a9>] ? dev_gro_receive+0x139/0x440
[22766.387185]  [<ffffffff81559280>] napi_skb_finish+0x70/0xa0
[22766.387187]  [<ffffffff81559cb5>] napi_gro_receive+0xf5/0x130
[22766.387218]  [<ffffffffa01c4679>] e1000_receive_skb+0x59/0x70 [e1000e]
[22766.387242]  [<ffffffffa01c5aab>] e1000_clean_rx_irq+0x28b/0x460 [e1000e]
[22766.387266]  [<ffffffffa01c9c18>] e1000e_poll+0x78/0x430 [e1000e]
[22766.387268]  [<ffffffff81559fea>] net_rx_action+0x1aa/0x3d0
[22766.387270]  [<ffffffff810a495f>] ? account_system_vtime+0x10f/0x130
[22766.387273]  [<ffffffff810734d0>] __do_softirq+0xe0/0x420
[22766.387275]  [<ffffffff8169826c>] call_softirq+0x1c/0x30
[22766.387278]  [<ffffffff8101db15>] do_softirq+0xd5/0x110
[22766.387279]  [<ffffffff81073bc5>] irq_exit+0xd5/0xe0
[22766.387281]  [<ffffffff81698b03>] do_IRQ+0x63/0xd0
[22766.387283]  [<ffffffff8168ee2f>] common_interrupt+0x6f/0x6f
[22766.387283]  <EOI>
[22766.387284]
[22766.387285]  [<ffffffff8168eed9>] ? retint_swapgs+0x13/0x1b
[22766.387285] Code: c0 90 5d c3 66 0f 1f 44 00 00 4c 89 c8 5d c3 0f 1f 00 55 48
89 e5 48 83
ec 20 48 89 5d e8 4c 89 65 f0 4c 89 6d f8 66 66 66 66 90 <0f> b7 87 98 00 00 00
48 89 fb
49 89 f5 66 c1 c0 08 66 39 46 02
[22766.387307]
[22766.387307] RIP
[22766.387311]  [<ffffffffa168a2c9>] sctp_assoc_is_match+0x19/0x90 [sctp]
[22766.387311]  RSP <ffff880147c039b0>
[22766.387142]  ffffffffa16ab120
[22766.599537] ---[ end trace 3f6dae82e37b17f5 ]---
[22766.601221] Kernel panic - not syncing: Fatal exception in interrupt

It appears from his analysis and some staring at the code that this is likely
occuring because an association is getting freed while still on the
sctp_assoc_hashtable.  As a result, we get a gpf when traversing the hashtable
while a freed node corrupts part of the list.

Nominally I would think that an mibalanced refcount was responsible for this,
but I can't seem to find any obvious imbalance.  What I did note however was
that the two places where we create an association using
sctp_primitive_ASSOCIATE (__sctp_connect and sctp_sendmsg), have failure paths
which free a newly created association after calling sctp_primitive_ASSOCIATE.
sctp_primitive_ASSOCIATE brings us into the sctp_sf_do_prm_asoc path, which
issues a SCTP_CMD_NEW_ASOC side effect, which in turn adds a new association to
the aforementioned hash table.  the sctp command interpreter that process side
effects has not way to unwind previously processed commands, so freeing the
association from the __sctp_connect or sctp_sendmsg error path would lead to a
freed association remaining on this hash table.

I've fixed this but modifying sctp_[un]hash_established to use hlist_del_init,
which allows us to proerly use hlist_unhashed to check if the node is on a
hashlist safely during a delete.  That in turn alows us to safely call
sctp_unhash_established in the __sctp_connect and sctp_sendmsg error paths
before freeing them, regardles of what the associations state is on the hash
list.

I noted, while I was doing this, that the __sctp_unhash_endpoint was using
hlist_unhsashed in a simmilar fashion, but never nullified any removed nodes
pointers to make that function work properly, so I fixed that up in a simmilar
fashion.

I attempted to test this using a virtual guest running the SCTP_RR test from
netperf in a loop while running the trinity fuzzer, both in a loop.  I wasn't
able to recreate the problem prior to this fix, nor was I able to trigger the
failure after (neither of which I suppose is suprising).  Given the trace above
however, I think its likely that this is what we hit.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Reported-by: davej@redhat.com
CC: davej@redhat.com
CC: "David S. Miller" <davem@davemloft.net>
CC: Vlad Yasevich <vyasevich@gmail.com>
CC: Sridhar Samudrala <sri@us.ibm.com>
CC: linux-sctp@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocifs: always update the inode cache with the results from a FIND_*
Jeff Layton [Fri, 6 Jul 2012 11:09:42 +0000 (07:09 -0400)]
cifs: always update the inode cache with the results from a FIND_*

When we get back a FIND_FIRST/NEXT result, we have some info about the
dentry that we use to instantiate a new inode. We were ignoring and
discarding that info when we had an existing dentry in the cache.

Fix this by updating the inode in place when we find an existing dentry
and the uniqueid is the same.

Cc: <stable@vger.kernel.org> # .31.x
Reported-and-Tested-by: Andrew Bartlett <abartlet@samba.org>
Reported-by: Bill Robertson <bill_robertson@debortoli.com.au>
Reported-by: Dion Edwards <dion_edwards@debortoli.com.au>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
11 years agocifs: when CONFIG_HIGHMEM is set, serialize the read/write kmaps
Jeff Layton [Wed, 11 Jul 2012 13:09:36 +0000 (09:09 -0400)]
cifs: when CONFIG_HIGHMEM is set, serialize the read/write kmaps

Jian found that when he ran fsx on a 32 bit arch with a large wsize the
process and one of the bdi writeback kthreads would sometimes deadlock
with a stack trace like this:

crash> bt
PID: 2789   TASK: f02edaa0  CPU: 3   COMMAND: "fsx"
 #0 [eed63cbc] schedule at c083c5b3
 #1 [eed63d80] kmap_high at c0500ec8
 #2 [eed63db0] cifs_async_writev at f7fabcd7 [cifs]
 #3 [eed63df0] cifs_writepages at f7fb7f5c [cifs]
 #4 [eed63e50] do_writepages at c04f3e32
 #5 [eed63e54] __filemap_fdatawrite_range at c04e152a
 #6 [eed63ea4] filemap_fdatawrite at c04e1b3e
 #7 [eed63eb4] cifs_file_aio_write at f7fa111a [cifs]
 #8 [eed63ecc] do_sync_write at c052d202
 #9 [eed63f74] vfs_write at c052d4ee
#10 [eed63f94] sys_write at c052df4c
#11 [eed63fb0] ia32_sysenter_target at c0409a98
    EAX: 00000004  EBX: 00000003  ECX: abd73b73  EDX: 012a65c6
    DS:  007b      ESI: 012a65c6  ES:  007b      EDI: 00000000
    SS:  007b      ESP: bf8db178  EBP: bf8db1f8  GS:  0033
    CS:  0073      EIP: 40000424  ERR: 00000004  EFLAGS: 00000246

Each task would kmap part of its address array before getting stuck, but
not enough to actually issue the write.

This patch fixes this by serializing the marshal_iov operations for
async reads and writes. The idea here is to ensure that cifs
aggressively tries to populate a request before attempting to fulfill
another one. As soon as all of the pages are kmapped for a request, then
we can unlock and allow another one to proceed.

There's no need to do this serialization on non-CONFIG_HIGHMEM arches
however, so optimize all of this out when CONFIG_HIGHMEM isn't set.

Cc: <stable@vger.kernel.org>
Reported-by: Jian Li <jiali@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
11 years agocifs: on CONFIG_HIGHMEM machines, limit the rsize/wsize to the kmap space
Jeff Layton [Wed, 11 Jul 2012 13:09:35 +0000 (09:09 -0400)]
cifs: on CONFIG_HIGHMEM machines, limit the rsize/wsize to the kmap space

We currently rely on being able to kmap all of the pages in an async
read or write request. If you're on a machine that has CONFIG_HIGHMEM
set then that kmap space is limited, sometimes to as low as 512 slots.

With 512 slots, we can only support up to a 2M r/wsize, and that's
assuming that we can get our greedy little hands on all of them. There
are other users however, so it's possible we'll end up stuck with a
size that large.

Since we can't handle a rsize or wsize larger than that currently, cap
those options at the number of kmap slots we have. We could consider
capping it even lower, but we currently default to a max of 1M. Might as
well allow those luddites on 32 bit arches enough rope to hang
themselves.

A more robust fix would be to teach the send and receive routines how
to contend with an array of pages so we don't need to marshal up a kvec
array at all. That's a fairly significant overhaul though, so we'll need
this limit in place until that's ready.

Cc: <stable@vger.kernel.org>
Reported-by: Jian Li <jiali@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
11 years agoInitialise mid_q_entry before putting it on the pending queue
Sachin Prabhu [Wed, 11 Jul 2012 11:28:05 +0000 (12:28 +0100)]
Initialise mid_q_entry before putting it on the pending queue

A user reported a crash in cifs_demultiplex_thread() caused by an
incorrectly set mid_q_entry->callback() function. It appears that the
callback assignment made in cifs_call_async() was not flushed back to
memory suggesting that a memory barrier was required here. Changing the
code to make sure that the mid_q_entry structure was completely
initialised before it was added to the pending queue fixes the problem.

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <smfrench@gmail.com>
11 years agotarget: Fix range calculation in WRITE SAME emulation when num blocks == 0
Roland Dreier [Tue, 17 Jul 2012 00:10:17 +0000 (17:10 -0700)]
target: Fix range calculation in WRITE SAME emulation when num blocks == 0

When NUMBER OF LOGICAL BLOCKS is 0, WRITE SAME is supposed to write
all the blocks from the specified LBA through the end of the device.
However, dev->transport->get_blocks(dev) (perhaps confusingly) returns
the last valid LBA rather than the number of blocks, so the correct
number of blocks to write starting with lba is

dev->transport->get_blocks(dev) - lba + 1

(nab: Backport roland's for-3.6 patch to for-3.5)

Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
11 years agotarget: Clean up returning errors in PR handling code
Roland Dreier [Mon, 16 Jul 2012 22:17:10 +0000 (15:17 -0700)]
target: Clean up returning errors in PR handling code

 - instead of (PTR_ERR(file) < 0) just use IS_ERR(file)
 - return -EINVAL instead of EINVAL
 - all other error returns in target_scsi3_emulate_pr_out() use
   "goto out" -- get rid of the one remaining straight "return."

Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
11 years agoMerge branch 'gma500' (Alan's GMA patches)
Linus Torvalds [Mon, 16 Jul 2012 17:03:09 +0000 (10:03 -0700)]
Merge branch 'gma500' (Alan's GMA patches)

Merge gma500 patches from Alan Cox.

* Merge emailed patches from Alan Cox <alan@lxorguk.ukuu.org.uk>: (3 commits)
  gma500,cdv: Fix the brightness base
  gma500: move the ASLE enable
  gma500: Fix lid related crash

11 years agoMerge tag 'for-linus-v3.5-rc7' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Mon, 16 Jul 2012 17:02:36 +0000 (10:02 -0700)]
Merge tag 'for-linus-v3.5-rc7' of git://oss.sgi.com/xfs/xfs

Pull xfs regression fixes from Ben Myers:
 - Really fix a cursor leak in xfs_alloc_ag_vextent_near
 - Fix a performance regression related to doing allocation in
   workqueues
 - Prevent recursion in xfs_buf_iorequest which is causing stack
   overflows
 - Don't call xfs_bdstrat_cb in xfs_buf_iodone callbacks

* tag 'for-linus-v3.5-rc7' of git://oss.sgi.com/xfs/xfs:
  xfs: do not call xfs_bdstrat_cb in xfs_buf_iodone_callbacks
  xfs: prevent recursion in xfs_buf_iorequest
  xfs: don't defer metadata allocation to the workqueue
  xfs: really fix the cursor leak in xfs_alloc_ag_vextent_near

11 years agotimekeeping: Add missing update call in timekeeping_resume()
Thomas Gleixner [Mon, 16 Jul 2012 16:50:42 +0000 (12:50 -0400)]
timekeeping: Add missing update call in timekeeping_resume()

The leap second rework unearthed another issue of inconsistent data.

On timekeeping_resume() the timekeeper data is updated, but nothing
calls timekeeping_update(), so now the update code in the timer
interrupt sees stale values.

This has been the case before those changes, but then the timer
interrupt was using stale data as well so this went unnoticed for quite
some time.

Add the missing update call, so all the data is consistent everywhere.

Reported-by: Andreas Schwab <schwab@linux-m68k.org>
Reported-and-tested-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Reported-and-tested-by: Martin Steigerwald <Martin@lichtvoll.de>
Cc: LKML <linux-kernel@vger.kernel.org>
Cc: Linux PM list <linux-pm@vger.kernel.org>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agogma500,cdv: Fix the brightness base
Alan Cox [Mon, 16 Jul 2012 16:54:03 +0000 (17:54 +0100)]
gma500,cdv: Fix the brightness base

Some desktop environments carefully save and restore the brightness
settings from the previous boot.  Unfortunately they don't all check to
see if the range has changed.  The end result is that they restore a
brightness of 100/lots not 100/100.

As the old driver and the non-free GMA36xx driver both use 0-100 we thus
need to go back doing the same thing to avoid users getting a mysterious
black screen after boot.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agogma500: move the ASLE enable
Alan Cox [Mon, 16 Jul 2012 16:52:45 +0000 (17:52 +0100)]
gma500: move the ASLE enable

Otherwise we end up getting the masks wrong, can get events before we
are doing power control and other ungood things.  Again this is a
regression fix where the ordering of handling was disturbed by other
work, and the user experience on some boxes is a blank screen.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agogma500: Fix lid related crash
Alan Cox [Mon, 16 Jul 2012 16:51:50 +0000 (17:51 +0100)]
gma500: Fix lid related crash

We now set up the lid timer before we set up the backlight.  On some
devices that causes a crash as we do a backlight change before or during
the setup.

As this fixes a crash on boot regression on some setups it ought to go
in ASAP, especially as all the user gets is a blank screen.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Tested-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86
Linus Torvalds [Mon, 16 Jul 2012 15:35:44 +0000 (08:35 -0700)]
Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86

Pull x86 platform tree fixes from Matthew Garrett:
 "Small fixes to a couple of drivers plus a slightly larger number for
  sony-laptop that the maintainer thinks are appropriate, most of which
  fix problems with the earlier 3.5 updates.  These have been in -next
  for a while without complaint."

* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
  intel_ips: blacklist HP ProBook laptops
  ideapad: uninitialized data in ideapad_acpi_add()
  sony-laptop: correct find_snc_handle failure checks
  sony-laptop: fix a couple signedness bugs
  sony-laptop: fix sony_nc_sysfs_store()
  sony-laptop: input initialization should be done before SNC
  sony-laptop: add lid backlight support for handle 0x143
  sony-laptop: store battery care limits on batteries
  sony-laptop: notify userspace of GFX switch position changes
  sony-laptop: use an enum for SNC event types

11 years agofifo: Do not restart open() if it already found a partner
Anders Kaseorg [Sun, 15 Jul 2012 21:14:25 +0000 (17:14 -0400)]
fifo: Do not restart open() if it already found a partner

If a parent and child process open the two ends of a fifo, and the
child immediately exits, the parent may receive a SIGCHLD before its
open() returns.  In that case, we need to make sure that open() will
return successfully after the SIGCHLD handler returns, instead of
throwing EINTR or being restarted.  Otherwise, the restarted open()
would incorrectly wait for a second partner on the other end.

The following test demonstrates the EINTR that was wrongly thrown from
the parent’s open().  Change .sa_flags = 0 to .sa_flags = SA_RESTART
to see a deadlock instead, in which the restarted open() waits for a
second reader that will never come.  (On my systems, this happens
pretty reliably within about 5 to 500 iterations.  Others report that
it manages to loop ~forever sometimes; YMMV.)

  #include <sys/stat.h>
  #include <sys/types.h>
  #include <sys/wait.h>
  #include <fcntl.h>
  #include <signal.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <unistd.h>

  #define CHECK(x) do if ((x) == -1) {perror(#x); abort();} while(0)

  void handler(int signum) {}

  int main()
  {
      struct sigaction act = {.sa_handler = handler, .sa_flags = 0};
      CHECK(sigaction(SIGCHLD, &act, NULL));
      CHECK(mknod("fifo", S_IFIFO | S_IRWXU, 0));
      for (;;) {
          int fd;
          pid_t pid;
          putc('.', stderr);
          CHECK(pid = fork());
          if (pid == 0) {
              CHECK(fd = open("fifo", O_RDONLY));
              _exit(0);
          }
          CHECK(fd = open("fifo", O_WRONLY));
          CHECK(close(fd));
          CHECK(waitpid(pid, NULL, 0));
      }
  }

This is what I suspect was causing the Git test suite to fail in
t9010-svn-fe.sh:

http://bugs.debian.org/678852

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge tag 'fixes-for-v3.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/linus...
Linus Torvalds [Mon, 16 Jul 2012 15:32:06 +0000 (08:32 -0700)]
Merge tag 'fixes-for-v3.5-rc6' of git://git./linux/kernel/git/linusw/linux-pinctrl

Pull late pinctrl fixes from Linus Walleij:
- Two fixes to the i.MX driver

* tag 'fixes-for-v3.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: pinctrl-imx6q: add missed mux function for USBOTG_ID
  pinctrl: pinctrl-imx: only print debug message when DEBUG is defined

11 years agonet: respect GFP_DMA in __netdev_alloc_skb()
Eric Dumazet [Mon, 16 Jul 2012 11:15:52 +0000 (13:15 +0200)]
net: respect GFP_DMA in __netdev_alloc_skb()

Few drivers use GFP_DMA allocations, and netdev_alloc_frag()
doesn't allocate pages in DMA zone.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoARM: dma-mapping: modify condition check while freeing pages
Prathyush K [Mon, 16 Jul 2012 06:59:55 +0000 (08:59 +0200)]
ARM: dma-mapping: modify condition check while freeing pages

WARNING: at mm/vmalloc.c:1471 __iommu_free_buffer+0xcc/0xd0()
Trying to vfree() nonexistent vm area (ef095000)
Modules linked in:
[<c0015a18>] (unwind_backtrace+0x0/0xfc) from [<c0025a94>] (warn_slowpath_common+0x54/0x64)
[<c0025a94>] (warn_slowpath_common+0x54/0x64) from [<c0025b38>] (warn_slowpath_fmt+0x30/0x40)
[<c0025b38>] (warn_slowpath_fmt+0x30/0x40) from [<c0016de0>] (__iommu_free_buffer+0xcc/0xd0)
[<c0016de0>] (__iommu_free_buffer+0xcc/0xd0) from [<c0229a5c>] (exynos_drm_free_buf+0xe4/0x138)
[<c0229a5c>] (exynos_drm_free_buf+0xe4/0x138) from [<c022b358>] (exynos_drm_gem_destroy+0x80/0xfc)
[<c022b358>] (exynos_drm_gem_destroy+0x80/0xfc) from [<c0211230>] (drm_gem_object_free+0x28/0x34)
[<c0211230>] (drm_gem_object_free+0x28/0x34) from [<c0211bd0>] (drm_gem_object_release_handle+0xcc/0xd8)
[<c0211bd0>] (drm_gem_object_release_handle+0xcc/0xd8) from [<c01abe10>] (idr_for_each+0x74/0xb8)
[<c01abe10>] (idr_for_each+0x74/0xb8) from [<c02114e4>] (drm_gem_release+0x1c/0x30)
[<c02114e4>] (drm_gem_release+0x1c/0x30) from [<c0210ae8>] (drm_release+0x608/0x694)
[<c0210ae8>] (drm_release+0x608/0x694) from [<c00b75a0>] (fput+0xb8/0x228)
[<c00b75a0>] (fput+0xb8/0x228) from [<c00b40c4>] (filp_close+0x64/0x84)
[<c00b40c4>] (filp_close+0x64/0x84) from [<c0029d54>] (put_files_struct+0xe8/0x104)
[<c0029d54>] (put_files_struct+0xe8/0x104) from [<c002b930>] (do_exit+0x608/0x774)
[<c002b930>] (do_exit+0x608/0x774) from [<c002bae4>] (do_group_exit+0x48/0xb4)
[<c002bae4>] (do_group_exit+0x48/0xb4) from [<c002bb60>] (sys_exit_group+0x10/0x18)
[<c002bb60>] (sys_exit_group+0x10/0x18) from [<c000ee80>] (ret_fast_syscall+0x0/0x30)

This patch modifies the condition while freeing to match the condition
used while allocation. This fixes the above warning which arises when
array size is equal to PAGE_SIZE where allocation is done using kzalloc
but free is done using vfree.

Signed-off-by: Prathyush K <prathyush.k@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
11 years agoSELinux: do not check open perms if they are not known to policy
Eric Paris [Fri, 6 Jul 2012 18:13:30 +0000 (14:13 -0400)]
SELinux: do not check open perms if they are not known to policy

When I introduced open perms policy didn't understand them and I
implemented them as a policycap.  When I added the checking of open perm
to truncate I forgot to conditionalize it on the userspace defined
policy capability.  Running an old policy with a new kernel will not
check open on open(2) but will check it on truncate.  Conditionalize the
truncate check the same as the open check.

Signed-off-by: Eric Paris <eparis@redhat.com>
Cc: stable@vger.kernel.org # 3.4.x
Signed-off-by: James Morris <james.l.morris@oracle.com>
11 years agoSELinux: include definition of new capabilities
Eric Paris [Fri, 6 Jul 2012 18:13:29 +0000 (14:13 -0400)]
SELinux: include definition of new capabilities

The kernel has added CAP_WAKE_ALARM and CAP_EPOLLWAKEUP.  We need to
define these in SELinux so they can be mediated by policy.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
11 years agotime: Rework timekeeping functions to take timekeeper ptr as argument
John Stultz [Fri, 13 Jul 2012 05:21:57 +0000 (01:21 -0400)]
time: Rework timekeeping functions to take timekeeper ptr as argument

As part of cleaning up the timekeeping code, this patch converts
a number of internal functions to takei a timekeeper ptr as an
argument, so that the internal functions don't access the global
timekeeper structure directly. This allows for further optimizations
to reduce lock hold time later.

This patch has been updated to include more consistent usage of the
timekeeper value, by making sure it is always passed as a argument
to non top-level functions.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Link: http://lkml.kernel.org/r/1342156917-25092-9-git-send-email-john.stultz@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
11 years agotime: Move xtime_nsec adjustment underflow handling timekeeping_adjust
John Stultz [Fri, 13 Jul 2012 05:21:56 +0000 (01:21 -0400)]
time: Move xtime_nsec adjustment underflow handling timekeeping_adjust

When we make adjustments speeding up the clock, its possible
for xtime_nsec to underflow. We already handle this properly,
but we do so from update_wall_time() instead of the more logical
timekeeping_adjust(), where the possible underflow actually
occurs.

Thus, move the correction logic to the timekeeping_adjust, which
is the function that causes the issue. Making update_wall_time()
more readable.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Link: http://lkml.kernel.org/r/1342156917-25092-8-git-send-email-john.stultz@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
11 years agotime: Move arch_gettimeoffset() usage into timekeeping_get_ns()
John Stultz [Fri, 13 Jul 2012 05:21:55 +0000 (01:21 -0400)]
time: Move arch_gettimeoffset() usage into timekeeping_get_ns()

Since we call arch_gettimeoffset() in all the accessor
functions, move arch_gettimeoffset() calls into
timekeeping_get_ns() and timekeeping_get_ns_raw() to simplify
the code.

This also makes the code easier to maintain as we don't have to
worry about forgetting the arch_gettimeoffset() as has happened
in the past.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Link: http://lkml.kernel.org/r/1342156917-25092-7-git-send-email-john.stultz@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
11 years agotime: Refactor accumulation of nsecs to secs
John Stultz [Fri, 13 Jul 2012 05:21:54 +0000 (01:21 -0400)]
time: Refactor accumulation of nsecs to secs

We do the exact same logic moving nsecs to secs in the
timekeeper in multiple places, so condense this into a
single function.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Link: http://lkml.kernel.org/r/1342156917-25092-6-git-send-email-john.stultz@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
11 years agotime: Condense timekeeper.xtime into xtime_sec
John Stultz [Fri, 13 Jul 2012 05:21:53 +0000 (01:21 -0400)]
time: Condense timekeeper.xtime into xtime_sec

The timekeeper struct has a xtime_nsec, which keeps the
sub-nanosecond remainder.  This ends up being somewhat
duplicative of the timekeeper.xtime.tv_nsec value, and we
have to do extra work to keep them apart, copying the full
nsec portion out and back in over and over.

This patch simplifies some of the logic by taking the timekeeper
xtime value and splitting it into timekeeper.xtime_sec and
reuses the timekeeper.xtime_nsec for the sub-second portion
(stored in higher res shifted nanoseconds).

This simplifies some of the accumulation logic. And will
allow for more accurate timekeeping once the vsyscall code
is updated to use the shifted nanosecond remainder.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Link: http://lkml.kernel.org/r/1342156917-25092-5-git-send-email-john.stultz@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
11 years agotime: Explicitly use u32 instead of int for shift values
John Stultz [Fri, 13 Jul 2012 05:21:52 +0000 (01:21 -0400)]
time: Explicitly use u32 instead of int for shift values

Ingo noted that using a u32 instead of int for shift values
would be better to make sure the compiler doesn't unnecessarily
use complex signed arithmetic.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Link: http://lkml.kernel.org/r/1342156917-25092-4-git-send-email-john.stultz@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
11 years agotime: Whitespace cleanups per Ingo%27s requests
John Stultz [Fri, 13 Jul 2012 05:21:51 +0000 (01:21 -0400)]
time: Whitespace cleanups per Ingo%27s requests

Ingo noted a number of places where there is inconsistent
use of whitespace. This patch tries to address the main
culprits.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Link: http://lkml.kernel.org/r/1342156917-25092-3-git-send-email-john.stultz@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
11 years agoMerge branch 'timers/urgent' into timers/core
Thomas Gleixner [Sun, 15 Jul 2012 08:24:53 +0000 (10:24 +0200)]
Merge branch 'timers/urgent' into timers/core

Reason: Update to upstream changes to avoid further conflicts.
Fixup a trivial merge conflict in kernel/time/tick-sched.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
11 years agontp: Fix STA_INS/DEL clearing bug
John Stultz [Fri, 13 Jul 2012 05:21:50 +0000 (01:21 -0400)]
ntp: Fix STA_INS/DEL clearing bug

In commit 6b43ae8a619d17c4935c3320d2ef9e92bdeed05d, I
introduced a bug that kept the STA_INS or STA_DEL bit
from being cleared from time_status via adjtimex()
without forcing STA_PLL first.

Usually once the STA_INS is set, it isn't cleared
until the leap second is applied, so its unlikely this
affected anyone. However during testing I noticed it
took some effort to cancel a leap second once STA_INS
was set.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
CC: stable@vger.kernel.org # 3.4
Link: http://lkml.kernel.org/r/1342156917-25092-2-git-send-email-john.stultz@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
11 years agoLinux 3.5-rc7
Linus Torvalds [Sat, 14 Jul 2012 22:40:28 +0000 (15:40 -0700)]
Linux 3.5-rc7

11 years agoblk: fix wrong idr_pre_get() error check in loop.c
Silva Paulo [Sat, 14 Jul 2012 22:39:58 +0000 (15:39 -0700)]
blk: fix wrong idr_pre_get() error check in loop.c

The idr_pre_get() function never returns a value < 0.  It returns 0 (no
memory) or 1 (OK).

Reported-by: Silva Paulo <psdasilva@yahoo.com>
[ Rewrote Silva's patch, but attributing it to Silva anyway  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agotcm_fc: Fix crash seen with aborts and large reads
Mark Rustad [Sat, 14 Jul 2012 01:18:04 +0000 (18:18 -0700)]
tcm_fc: Fix crash seen with aborts and large reads

This patch fixes a crash seen when large reads have their exchange
aborted by either timing out or being reset. Because the exchange
abort results in the seq pointer being set to NULL, because the
sequence is no longer valid, it must not be dereferenced. This
patch changes the function ft_get_task_tag to return ~0 if it is
unable to get the tag for this reason. Because the get_task_tag
interface provides no means of returning an error, this seems
like the best way to fix this issue at the moment.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
11 years agopinctrl: pinctrl-imx6q: add missed mux function for USBOTG_ID
Dong Aisheng [Fri, 6 Jul 2012 09:09:23 +0000 (17:09 +0800)]
pinctrl: pinctrl-imx6q: add missed mux function for USBOTG_ID

The original pin registers table is derived from u-boot mainline,
but somehow it was found missing some mux functions for USBOTG_ID.
We added it at the bottom by following the exist pin function ids,
then it will not break the exist using of pin function id in dts file.

Reported-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
11 years agopinctrl: pinctrl-imx: only print debug message when DEBUG is defined
Dong Aisheng [Thu, 21 Jun 2012 10:10:35 +0000 (18:10 +0800)]
pinctrl: pinctrl-imx: only print debug message when DEBUG is defined

Fix regression for commit 3a86a5f8 (pinctrl: pinctrl-imx: free allocated
pinctrl_map structure only once and use kernel facilities for IMX_PMX_DUMP)
introduced in 3.5-rc3.
With above commit, the debug code will alway be excuted.
Change to excute it only when DEBUG is defined.

Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
11 years agoMerge tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Sat, 14 Jul 2012 20:03:08 +0000 (13:03 -0700)]
Merge tag 'sound-3.5' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Containing the regression fixes for USB-audio due to the transition to
  the new streaming logic, mostly found on Logitech webcams."

* tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: snd-usb: move calls to usb_set_interface
  ALSA: usb-audio: Fix the first PCM interface assignment

11 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Linus Torvalds [Sat, 14 Jul 2012 19:44:26 +0000 (12:44 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux

Pull ACPI patch from Len Brown.

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  ACPICA: Fix possible fault in return package object repair code

11 years agovsyscall_64: add missing ifdef CONFIG_SECCOMP
Will Drewry [Sat, 14 Jul 2012 15:32:52 +0000 (10:32 -0500)]
vsyscall_64: add missing ifdef CONFIG_SECCOMP

vsyscall_seccomp introduced a dependency on __secure_computing.  On
configurations with CONFIG_SECCOMP disabled, compilation will fail.

Reported-by: feng xiangjun <fengxj325@gmail.com>
Signed-off-by: Will Drewry <wad@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge tag 'cpufreq-for-3.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 14 Jul 2012 18:51:11 +0000 (11:51 -0700)]
Merge tag 'cpufreq-for-3.5-rc7' of git://git./linux/kernel/git/rafael/linux-pm

Pull cpufreq fix from Rafael Wysocki:
 "This fixes a regression preventing the ACPI cpufreq driver from
  loading on some systems where it worked previously without any
  problems."

* tag 'cpufreq-for-3.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq / ACPI: Fix not loading acpi-cpufreq driver regression

11 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Sat, 14 Jul 2012 18:50:36 +0000 (11:50 -0700)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM Samsung SoC fixes from Arnd Bergmann.

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: S3C24XX: Correct CAMIF interrupt definitions
  ARM: S3C24XX: Correct AC97 clock control bit for S3C2440
  ARM: SAMSUNG: fix race in s3c_adc_start for ADC
  ARM: SAMSUNG: Update default rate for xusbxti clock
  ARM: EXYNOS: register devices in 'need_restore' state for pm_domains
  ARM: EXYNOS: read initial state of power domain from hw registers

11 years agoMerge branches 'core-urgent-for-linus', 'perf-urgent-for-linus' and 'sched-urgent...
Linus Torvalds [Sat, 14 Jul 2012 18:16:24 +0000 (11:16 -0700)]
Merge branches 'core-urgent-for-linus', 'perf-urgent-for-linus' and 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull RCU, perf, and scheduler fixes from Ingo Molnar.

The RCU fix is a revert for an optimization that could cause deadlocks.

One of the scheduler commits (164c33c6adee "sched: Fix fork() error path
to not crash") is correct but not complete (some architectures like Tile
are not covered yet) - the resulting additional fixes are still WIP and
Ingo did not want to delay these pending fixes.  See this thread on
lkml:

  [PATCH] fork: fix error handling in dup_task()

The perf fixes are just trivial oneliners.

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "rcu: Move PREEMPT_RCU preemption to switch_to() invocation"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf kvm: Fix segfault with report and mixed guestmount use
  perf kvm: Fix regression with guest machine creation
  perf script: Fix format regression due to libtraceevent merge
  ring-buffer: Fix accounting of entries when removing pages
  ring-buffer: Fix crash due to uninitialized new_pages list head

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  MAINTAINERS/sched: Update scheduler file pattern
  sched/nohz: Rewrite and fix load-avg computation -- again
  sched: Fix fork() error path to not crash

11 years agoACPICA: Fix possible fault in return package object repair code
Bob Moore [Wed, 4 Jul 2012 02:02:32 +0000 (10:02 +0800)]
ACPICA: Fix possible fault in return package object repair code

Fixes a problem that can occur when a lone package object is
wrapped with an outer package object in order to conform to
the ACPI specification. Can affect these predefined names:
_ALR,_MLS,_PSS,_TRT,_TSS,_PRT,_HPX,_DLM,_CSD,_PSD,_TSD

https://bugzilla.kernel.org/show_bug.cgi?id=44171

This problem was introduced in 3.4-rc1 by commit
6a99b1c94d053b3420eaa4a4bc8b2883dd90a2f9
(ACPICA: Object repair code: Support to add Package wrappers)

Reported-by: Vlastimil Babka <caster@gentoo.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Cc: <stable@vger.kernel.org> # 3.4
Signed-off-by: Len Brown <len.brown@intel.com>
11 years agoe1000e: fix test for PHY being accessible on 82577/8/9 and I217
Bruce Allan [Sat, 14 Jul 2012 04:23:58 +0000 (04:23 +0000)]
e1000e: fix test for PHY being accessible on 82577/8/9 and I217

Occasionally, the PHY can be initially inaccessible when the first read of
a PHY register, e.g. PHY_ID1, happens (signified by the returned value
0xFFFF) but subsequent accesses of the PHY work as expected.  Add a retry
counter similar to how it is done in the generic e1000_get_phy_id().

Also, when the PHY is completely inaccessible (i.e. when subsequent reads
of the PHY_IDx registers returns all F's) and the MDIO access mode must be
set to slow before attempting to read the PHY ID again, the functions that
do these latter two actions expect the SW/FW/HW semaphore is not already
set so the semaphore must be released before and re-acquired after calling
them otherwise there is an unnecessarily inordinate amount of delay during
device initialization.

Reported-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: Correct link check logic for 82571 serdes
Tushar Dave [Thu, 12 Jul 2012 08:56:56 +0000 (08:56 +0000)]
e1000e: Correct link check logic for 82571 serdes

SYNCH bit and IV bit of RXCW register are sticky. Before examining these bits,
RXCW should be read twice to filter out one-time false events and have correct
values for these bits. Incorrect values of these bits in link check logic can
cause weird link stability issues if auto-negotiation fails.

CC: stable <stable@vger.kernel.org> [2.6.38+]
Reported-by: Dean Nelson <dnelson@redhat.com>
Signed-off-by: Tushar Dave <tushar.n.dave@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoMerge branch 'v3.5-samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel...
Arnd Bergmann [Sat, 14 Jul 2012 07:14:35 +0000 (09:14 +0200)]
Merge branch 'v3.5-samsung-fixes-2' of git://git./linux/kernel/git/kgene/linux-samsung into fixes

From Kukjin Kim <kgene.kim@samsung.com>:

* 'v3.5-samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: S3C24XX: Correct CAMIF interrupt definitions
  ARM: S3C24XX: Correct AC97 clock control bit for S3C2440
  ARM: SAMSUNG: fix race in s3c_adc_start for ADC
  ARM: SAMSUNG: Update default rate for xusbxti clock
  ARM: EXYNOS: register devices in 'need_restore' state for pm_domains
  ARM: EXYNOS: read initial state of power domain from hw registers

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
11 years agoMerge tag 'md-3.5-fixes' of git://neil.brown.name/md
Linus Torvalds [Sat, 14 Jul 2012 00:59:33 +0000 (17:59 -0700)]
Merge tag 'md-3.5-fixes' of git://neil.brown.name/md

Pull use-after-free RAID1 bugfix from NeilBrown.

* tag 'md-3.5-fixes' of git://neil.brown.name/md:
  md/raid1: fix use-after-free bug in RAID1 data-check code.

11 years agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 13 Jul 2012 22:31:21 +0000 (15:31 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull the leap second fixes from Thomas Gleixner:
 "It's a rather large series, but well discussed, refined and reviewed.
  It got a massive testing by John, Prarit and tip.

  In theory we could split it into two parts.  The first two patches

    f55a6faa3843: hrtimer: Provide clock_was_set_delayed()
    4873fa070ae8: timekeeping: Fix leapsecond triggered load spike issue

  are merely preventing the stuff loops forever issues, which people
  have observed.

  But there is no point in delaying the other 4 commits which achieve
  full correctness into 3.6 as they are tagged for stable anyway.  And I
  rather prefer to have the full fixes merged in bulk than a "prevent
  the observable wreckage and deal with the hidden fallout later"
  approach."

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  hrtimer: Update hrtimer base offsets each hrtimer_interrupt
  timekeeping: Provide hrtimer update function
  hrtimers: Move lock held region in hrtimer_interrupt()
  timekeeping: Maintain ktime_t based offsets for hrtimers
  timekeeping: Fix leapsecond triggered load spike issue
  hrtimer: Provide clock_was_set_delayed()

11 years agox86/vsyscall: allow seccomp filter in vsyscall=emulate
Will Drewry [Fri, 13 Jul 2012 17:06:35 +0000 (12:06 -0500)]
x86/vsyscall: allow seccomp filter in vsyscall=emulate

If a seccomp filter program is installed, older static binaries and
distributions with older libc implementations (glibc 2.13 and earlier)
that rely on vsyscall use will be terminated regardless of the filter
program policy when executing time, gettimeofday, or getcpu.  This is
only the case when vsyscall emulation is in use (vsyscall=emulate is the
default).

This patch emulates system call entry inside a vsyscall=emulate by
populating regs->ax and regs->orig_ax with the system call number prior
to calling into seccomp such that all seccomp-dependencies function
normally.  Additionally, system call return behavior is emulated in line
with other vsyscall entrypoints for the trace/trap cases.

[ v2: fixed ip and sp on SECCOMP_RET_TRAP/TRACE (thanks to luto@mit.edu) ]
Reported-and-tested-by: Owen Kibel <qmewlo@gmail.com>
Signed-off-by: Will Drewry <wad@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoxfs: do not call xfs_bdstrat_cb in xfs_buf_iodone_callbacks
Christoph Hellwig [Fri, 13 Jul 2012 06:24:10 +0000 (02:24 -0400)]
xfs: do not call xfs_bdstrat_cb in xfs_buf_iodone_callbacks

xfs_bdstrat_cb only adds a check for a shutdown filesystem over
xfs_buf_iorequest, but xfs_buf_iodone_callbacks just checked for a shut down
filesystem a little earlier.  In addition the shutdown handling in
xfs_bdstrat_cb is not very suitable for this caller.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
11 years agoxfs: prevent recursion in xfs_buf_iorequest
Christoph Hellwig [Mon, 2 Jul 2012 10:00:04 +0000 (06:00 -0400)]
xfs: prevent recursion in xfs_buf_iorequest

If the b_iodone handler is run in calling context in xfs_buf_iorequest we
can run into a recursion where xfs_buf_iodone_callbacks keeps calling back
into xfs_buf_iorequest because an I/O error happened, which keeps calling
back into xfs_buf_iorequest.  This chain will usually not take long
because the filesystem gets shut down because of log I/O errors, but even
over a short time it can cause stack overflows if run on the same context.

As a short term workaround make sure we always call the iodone handler in
workqueue context.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
11 years agoxfs: don't defer metadata allocation to the workqueue
Dave Chinner [Wed, 11 Jul 2012 21:40:43 +0000 (07:40 +1000)]
xfs: don't defer metadata allocation to the workqueue

Almost all metadata allocations come from shallow stack usage
situations. Avoid the overhead of switching the allocation to a
workqueue as we are not in danger of running out of stack when
making these allocations. Metadata allocations are already marked
through the args that are passed down, so this is trivial to do.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reported-by: Mel Gorman <mgorman@suse.de>
Tested-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
11 years agoxfs: really fix the cursor leak in xfs_alloc_ag_vextent_near
Dave Chinner [Wed, 11 Jul 2012 21:40:42 +0000 (07:40 +1000)]
xfs: really fix the cursor leak in xfs_alloc_ag_vextent_near

The current cursor is reallocated when retrying the allocation, so
the existing cursor needs to be destroyed in both the restart and
the failure cases.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Tested-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
11 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelv...
Linus Torvalds [Fri, 13 Jul 2012 18:01:03 +0000 (11:01 -0700)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/jdelvare/staging

Please pull one hwmon subsystem fix from Jean Delvare.

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: (it87) Preserve configuration register bits on init

11 years agoMerge tag 'nfs-for-3.5-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Fri, 13 Jul 2012 17:58:45 +0000 (10:58 -0700)]
Merge tag 'nfs-for-3.5-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 - Fix an NFSv4 mount regression
 - Fix O_DIRECT list manipulation snafus

* tag 'nfs-for-3.5-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFSv4: Fix an NFSv4 mount regression
  NFS: Fix list manipulation snafus in fs/nfs/direct.c

11 years agoRemove easily user-triggerable BUG from generic_setlease
Dave Jones [Fri, 13 Jul 2012 17:35:36 +0000 (13:35 -0400)]
Remove easily user-triggerable BUG from generic_setlease

This can be trivially triggered from userspace by passing in something unexpected.

    kernel BUG at fs/locks.c:1468!
    invalid opcode: 0000 [#1] SMP
    RIP: 0010:generic_setlease+0xc2/0x100
    Call Trace:
      __vfs_setlease+0x35/0x40
      fcntl_setlease+0x76/0x150
      sys_fcntl+0x1c6/0x810
      system_call_fastpath+0x1a/0x1f

Signed-off-by: Dave Jones <davej@redhat.com>
Cc: stable@kernel.org # 3.2+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Fri, 13 Jul 2012 17:33:18 +0000 (10:33 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

Pull input layer fixes from Dmitry Torokhov:
 "The changes are limited to adding new VID/PID combinations to drivers
  to enable support for new versions of hardware, most notably hardware
  found in new MacBook Pro Retina boxes."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: xpad - add Andamiro Pump It Up pad
  Input: xpad - add signature for Razer Onza Tournament Edition
  Input: xpad - handle all variations of Mad Catz Beat Pad
  Input: bcm5974 - Add support for 2012 MacBook Pro Retina
  HID: add support for 2012 MacBook Pro Retina

11 years agoMerge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Fri, 13 Jul 2012 17:29:41 +0000 (10:29 -0700)]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 - Some regression fixes at the audio part for devices with
   cx23885/cx25840
 - A DMA corruption fix at cx231xx
 - two fixes at the winbond IR driver
 - Several fixes for the EXYNOS media driver (s5p)
 - two fixes at the OMAP3 preview driver
 - one fix at the dvb core failure path
 - an include missing (slab.h) at smiapp-core causing compilation
   breakage
 - em28xx was not loading the IR driver driver anymore.

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (31 commits)
  [media] Revert "[media] V4L: JPEG class documentation corrections"
  [media] s5p-fimc: Add missing FIMC-LITE file operations locking
  [media] omap3isp: preview: Fix contrast and brightness handling
  [media] omap3isp: preview: Fix output size computation depending on input format
  [media] winbond-cir: Initialise timeout, driver_type and allowed_protos
  [media] winbond-cir: Fix txandrx module info
  [media] cx23885: Silence unknown command warnings
  [media] cx23885: add support for HVR-1255 analog (cx23888 variant)
  [media] cx23885: make analog support work for HVR_1250 (cx23885 variant)
  [media] cx25840: fix vsrc/hsrc usage on cx23888 designs
  [media] cx25840: fix regression in HVR-1800 analog audio
  [media] cx25840: fix regression in analog support hue/saturation controls
  [media] cx25840: fix regression in HVR-1800 analog support
  [media] s5p-mfc: Fixed setup of custom controls in decoder and encoder
  [media] cx231xx: don't DMA to random addresses
  [media] em28xx: fix em28xx-rc load
  [media] dvb-core: Release semaphore on error path dvb_register_device()
  [media] s5p-fimc: Stop media entity pipeline if fimc_pipeline_validate fails
  [media] s5p-fimc: Fix compiler warning in fimc-lite.c
  [media] s5p-fimc: media_entity_pipeline_start() may fail
  ...

11 years agoMerge tag 'mmc-fixes-for-3.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 13 Jul 2012 17:27:25 +0000 (10:27 -0700)]
Merge tag 'mmc-fixes-for-3.5-rc7' of git://git./linux/kernel/git/cjb/mmc

Pull MMC fixes from Chris Ball:
 - Revert a patch that made failing to select power class fatal;
   it turns out that it fails non-fatally on Tegra boards.
   Regression against 3.5-rc1.
 - Add the IRQF_ONESHOT flag to the cd-gpio driver, which turned
   into a regression in 3.5-rc1 when IRQF_ONESHOT became required
   for threaded IRQs with no handler.

* tag 'mmc-fixes-for-3.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
  mmc: cd-gpio: pass IRQF_ONESHOT to request_threaded_irq()
  mmc: core: Revert "skip card initialization if power class selection fails"

11 years agoMerge tag 'for-linus-20120712' of git://git.infradead.org/linux-mtd
Linus Torvalds [Fri, 13 Jul 2012 16:56:26 +0000 (09:56 -0700)]
Merge tag 'for-linus-20120712' of git://git.infradead.org/linux-mtd

Pull late MTD fixes from David Woodhouse:
 - fix 'sparse warning fix' regression which totally breaks MXC NAND
 - fix GPMI NAND regression when used with UBI
 - update/correct sysfs documentation for new 'bitflip_threshold' field
 - fix nandsim build failure

* tag 'for-linus-20120712' of git://git.infradead.org/linux-mtd:
  mtd: nandsim: don't open code a do_div helper
  mtd: ABI documentation: clarification of bitflip_threshold
  mtd: gpmi-nand: fix read page when reading to vmalloced area
  mtd: mxc_nand: use 32bit copy functions

11 years agoMerge tag 'mfd-for-linus-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo...
Linus Torvalds [Fri, 13 Jul 2012 16:54:26 +0000 (09:54 -0700)]
Merge tag 'mfd-for-linus-3.5' of git://git./linux/kernel/git/sameo/mfd-2.6

Pull MFD Fixes from Samuel Ortiz:
 - Three Palmas fixes, One of them being a build error fix.
 - Two mc13xx fixes.  One for fixing an SPI regmap configuration and
   another one for working around an i.Mx hardware bug.
 - One omap-usb regression fix.
 - One twl6040 build breakage fix.
 - One file deletion (ab5500-core.h) that was overlooked during the last
   merge window.

* tag 'mfd-for-linus-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
  mfd: Add missing hunk to change palmas irq to clear on read
  mfd: Fix palmas regulator pdata missing
  mfd: USB: Fix the omap-usb EHCI ULPI PHY reset fix issues.
  mfd: Update twl6040 Kconfig to avoid build breakage
  mfd: Delete ab5500-core.h
  mfd: mc13xxx workaround SPI hardware bug on i.Mx
  mfd: Fix mc13xxx SPI regmap
  mfd: Add terminating entry for i2c_device_id palmas table

11 years agoMerge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh
Linus Torvalds [Fri, 13 Jul 2012 16:04:00 +0000 (09:04 -0700)]
Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH fixes from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
  SH: Convert out[bwl] macros to inline functions
  sh: Fix up se7721 GPIOLIB=y build warnings.

11 years agoMerge git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 13 Jul 2012 15:42:32 +0000 (08:42 -0700)]
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull a couple of KVM fixes from Avi Kivity:
 "One is an adjustment for an irq layer change that affected device
  assignment, the other a one-liner ppc fix."

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  powerpc/kvm: Fix "PR" KVM implementation of H_CEDE
  KVM: Fix device assignment threaded irq handler

11 years agoblock: fix infinite loop in __getblk_slow
Jeff Moyer [Thu, 12 Jul 2012 13:43:14 +0000 (09:43 -0400)]
block: fix infinite loop in __getblk_slow

Commit 080399aaaf35 ("block: don't mark buffers beyond end of disk as
mapped") exposed a bug in __getblk_slow that causes mount to hang as it
loops infinitely waiting for a buffer that lies beyond the end of the
disk to become uptodate.

The problem was initially reported by Torsten Hilbrich here:

    https://lkml.org/lkml/2012/6/18/54

and also reported independently here:

    http://www.sysresccd.org/forums/viewtopic.php?f=13&t=4511

and then Richard W.M.  Jones and Marcos Mello noted a few separate
bugzillas also associated with the same issue.  This patch has been
confirmed to fix:

    https://bugzilla.redhat.com/show_bug.cgi?id=835019

The main problem is here, in __getblk_slow:

        for (;;) {
                struct buffer_head * bh;
                int ret;

                bh = __find_get_block(bdev, block, size);
                if (bh)
                        return bh;

                ret = grow_buffers(bdev, block, size);
                if (ret < 0)
                        return NULL;
                if (ret == 0)
                        free_more_memory();
        }

__find_get_block does not find the block, since it will not be marked as
mapped, and so grow_buffers is called to fill in the buffers for the
associated page.  I believe the for (;;) loop is there primarily to
retry in the case of memory pressure keeping grow_buffers from
succeeding.  However, we also continue to loop for other cases, like the
block lying beond the end of the disk.  So, the fix I came up with is to
only loop when grow_buffers fails due to memory allocation issues
(return value of 0).

The attached patch was tested by myself, Torsten, and Rich, and was
found to resolve the problem in call cases.

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Reported-and-Tested-by: Torsten Hilbrich <torsten.hilbrich@secunet.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Josh Boyer <jwboyer@redhat.com>
Cc: Stable <stable@vger.kernel.org> # 3.0+
[ Jens is on vacation, taking this directly  - Linus ]
--
Stable Notes: this patch requires backport to 3.0, 3.2 and 3.3.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoARM: S3C24XX: Correct CAMIF interrupt definitions
Sylwester Nawrocki [Fri, 13 Jul 2012 08:48:56 +0000 (17:48 +0900)]
ARM: S3C24XX: Correct CAMIF interrupt definitions

Properly define the CAMIF interrupt resources. This device have two
interrupts - corresponding to the "codec" and "preview" data paths.
IRQ_CAM is handled internally by the architecture and demultiplexed
to IRQ_S3C2440_CAM_C and IRQ_S3C2440_CAM_P - these interrupts only
should be handled in the driver.

Signed-off-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
11 years agoARM: S3C24XX: Correct AC97 clock control bit for S3C2440
Sylwester Nawrocki [Fri, 13 Jul 2012 08:48:56 +0000 (17:48 +0900)]
ARM: S3C24XX: Correct AC97 clock control bit for S3C2440

Use correct gate control bit for AC97 clock which is
S3C2440_CLKCON_AC97, not S3C2440_CLKCON_CAMERA.

Signed-off-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
11 years agoALSA: snd-usb: move calls to usb_set_interface
Daniel Mack [Thu, 12 Jul 2012 11:08:40 +0000 (13:08 +0200)]
ALSA: snd-usb: move calls to usb_set_interface

The rework of the snd-usb endpoint logic moved the calls to
snd_usb_set_interface() into the snd_usb_endpoint implemenation. This
changed the order in which these calls are issued to the device, and
thereby caused regressions for some webcams.

Fix this by moving the calls back to pcm.c for now to make it work again
and use snd_usb_endpoint_activate() to really tear down all remaining
URBs in the flight, consequently fixing another regression caused by USB
packets on the wire after altsetting 0 has been selected.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Reported-and-tested-by: Philipp Dreimann <philipp@dreimann.net>
Reported-by: Joseph Salisbury <joseph.salisbury@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agoInput: xpad - add Andamiro Pump It Up pad
Yuri Khan [Thu, 12 Jul 2012 05:12:31 +0000 (22:12 -0700)]
Input: xpad - add Andamiro Pump It Up pad

I couldn't find the vendor ID in any of the online databases, but this
mat has a Pump It Up logo on the top side of the controller compartment,
and a disclaimer stating that Andamiro will not be liable on the bottom.

Signed-off-by: Yuri Khan <yurivkhan@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
11 years agoARM: SAMSUNG: fix race in s3c_adc_start for ADC
Todd Poynor [Fri, 13 Jul 2012 06:30:48 +0000 (15:30 +0900)]
ARM: SAMSUNG: fix race in s3c_adc_start for ADC

Checking for adc->ts_pend already claimed should be done with the
lock held.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
11 years agoARM: SAMSUNG: Update default rate for xusbxti clock
Tushar Behera [Thu, 12 Jul 2012 09:06:28 +0000 (18:06 +0900)]
ARM: SAMSUNG: Update default rate for xusbxti clock

The rate of xusbxti clock is set in individual machine files.
The default value should be defined at the clock definition
and individual machine files should modify it if required.

Division by zero in kernel.
[<c0011849>] (unwind_backtrace+0x1/0x9c) from [<c022c663>] (Ldiv0+0x9/0x12)
[<c022c663>] (Ldiv0+0x9/0x12) from [<c001a3c3>] (s3c_setrate_clksrc+0x33/0x78)
[<c001a3c3>] (s3c_setrate_clksrc+0x33/0x78) from [<c0019e67>] (clk_set_rate+0x2f/0x78)

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
11 years agohwmon: (it87) Preserve configuration register bits on init
Jean Delvare [Thu, 12 Jul 2012 20:47:37 +0000 (22:47 +0200)]
hwmon: (it87) Preserve configuration register bits on init

We were accidentally losing one bit in the configuration register on
device initialization. It was reported to freeze one specific system
right away. Properly preserve all bits we don't explicitly want to
change in order to prevent that.

Reported-by: Stevie Trujillo <stevie.trujillo@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
11 years agocpufreq / ACPI: Fix not loading acpi-cpufreq driver regression
Thomas Renninger [Thu, 12 Jul 2012 10:24:33 +0000 (12:24 +0200)]
cpufreq / ACPI: Fix not loading acpi-cpufreq driver regression

Commit d640113fe80e45ebd4a5b420b introduced a regression on SMP
systems where the processor core with ACPI id zero is disabled
(typically should be the case because of hyperthreading).
The regression got spread through stable kernels.
On 3.0.X it got introduced via 3.0.18.

Such platforms may be rare, but do exist.
Look out for a disabled processor with acpi_id 0 in dmesg:
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x10] disabled)

This problem has been observed on a:
HP Proliant BL280c G6 blade

This patch restricts the introduced workaround to platforms
with nr_cpu_ids <= 1.

Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: stable@vger.kernel.org
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
11 years agosch_sfb: Fix missing NULL check
Alan Cox [Thu, 12 Jul 2012 03:39:11 +0000 (03:39 +0000)]
sch_sfb: Fix missing NULL check

Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=44461

Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoARM: EXYNOS: register devices in 'need_restore' state for pm_domains
Marek Szyprowski [Thu, 12 Jul 2012 08:29:55 +0000 (17:29 +0900)]
ARM: EXYNOS: register devices in 'need_restore' state for pm_domains

Commit ca1d72f033 ('PM / Domains: Make it possible to add devices to
inactive domains') introduced possibility to add devices to inactive
power domains and added pm_genpd_dev_need_restore() function which lets
platform core to notify power domain core that the specified device must
be restored (with its runtime_resume() callback) before first use.

This patch adds the pm_genpd_dev_need_restore() call what brings back
the suspend/resume behaviour for the client devices known from the
previous power domain driver (removed by commit 91cfbd4ee0 - 'ARM:
EXYNOS: Hook up power domains to generic power domain infrastructure').
Client device drivers relay on that suspend/resume behaviour, thus this
patch fixes runtime pm operation for client devices.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
11 years agoARM: EXYNOS: read initial state of power domain from hw registers
Marek Szyprowski [Thu, 12 Jul 2012 08:29:54 +0000 (17:29 +0900)]
ARM: EXYNOS: read initial state of power domain from hw registers

Some bootloaders disable unused power domains to reduce power
consuption. Power domain driver can easily read the actual state from
the hardware registers instead of assuming that their initial state is
always 'on'.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
11 years agoSH: Convert out[bwl] macros to inline functions
Corey Minyard [Mon, 9 Jul 2012 20:35:20 +0000 (15:35 -0500)]
SH: Convert out[bwl] macros to inline functions

The macros just called BUG(), but that results in unused variable
warnings all over the place, like in the IPMI driver.  The build
regression emails were annoying me, so here's the fix.  I have
not even compile tested this, but it's rather obvious.

[ port type mangled to unsigned long ]

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
11 years agotracing: Check for allocation failure in __tracing_open()
Dan Carpenter [Wed, 11 Jul 2012 06:35:08 +0000 (09:35 +0300)]
tracing: Check for allocation failure in __tracing_open()

Clean up and return -ENOMEM on if the kzalloc() fails.

This also prevents a potential crash, as the pointer that failed to
allocate would be later used.

Link: http://lkml.kernel.org/r/20120711063507.GF11812@elgon.mountain
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
11 years agoMerge tag 'fbdev-fixes-for-3.5-2' of git://github.com/schandinat/linux-2.6
Linus Torvalds [Wed, 11 Jul 2012 23:17:14 +0000 (16:17 -0700)]
Merge tag 'fbdev-fixes-for-3.5-2' of git://github.com/schandinat/linux-2.6

Pull fbdev fixes from Florian Tobias Schandinat:
 "Two fixes for OMAPDSS by Tomi Valkeinen:
   - one to avoid warnings when runtime PM is not enabled
   - one workaround to dependancy issues during suspend/resume"

* tag 'fbdev-fixes-for-3.5-2' of git://github.com/schandinat/linux-2.6:
  OMAPDSS: fix warnings if CONFIG_PM_RUNTIME=n
  OMAPDSS: Use PM notifiers for system suspend