Commit Graph

400500 Commits

Author SHA1 Message Date
Steven Rostedt
46663d05cf avr32: use Kbuild infrastructure to handle the asm-generic headers
Use kbuild to add asm-generic headers that do nothing, also remove the arch
specific wrapper headers.

This only affects headers that do nothing but include the generic
equivalent. It does not touch any header that does a little more.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
2013-09-30 08:42:01 +02:00
Al Viro
13f3583892 afs: dget_parent() can't return a negative dentry
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-29 22:02:24 -04:00
Al Viro
7b9a2378b4 ocfs2: needs ->d_lock to poke in ->d_parent->d_inode from ->d_revalidate()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-29 22:02:20 -04:00
Lubomir Rintel
4947555584 sysv: Add forgotten superblock lock init for v7 fs
Superblock lock was replaced with (un)lock_super() removal, but left
uninitialized for Seventh Edition UNIX filesystem in the following commit (3.7):
c07cb01 sysv: drop lock/unlock super

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-29 22:02:02 -04:00
John Johansen
4cd4fc7703 apparmor: fix suspicious RCU usage warning in policy.c/policy.h
The recent 3.12 pull request for apparmor was missing a couple rcu _protected
access modifiers. Resulting in the follow suspicious RCU usage

 [   29.804534] [ INFO: suspicious RCU usage. ]
 [   29.804539] 3.11.0+ #5 Not tainted
 [   29.804541] -------------------------------
 [   29.804545] security/apparmor/include/policy.h:363 suspicious rcu_dereference_check() usage!
 [   29.804548]
 [   29.804548] other info that might help us debug this:
 [   29.804548]
 [   29.804553]
 [   29.804553] rcu_scheduler_active = 1, debug_locks = 1
 [   29.804558] 2 locks held by apparmor_parser/1268:
 [   29.804560]  #0:  (sb_writers#9){.+.+.+}, at: [<ffffffff81120a4c>] file_start_write+0x27/0x29
 [   29.804576]  #1:  (&ns->lock){+.+.+.}, at: [<ffffffff811f5d88>] aa_replace_profiles+0x166/0x57c
 [   29.804589]
 [   29.804589] stack backtrace:
 [   29.804595] CPU: 0 PID: 1268 Comm: apparmor_parser Not tainted 3.11.0+ #5
 [   29.804599] Hardware name: ASUSTeK Computer Inc.         UL50VT          /UL50VT    , BIOS 217     03/01/2010
 [   29.804602]  0000000000000000 ffff8800b95a1d90 ffffffff8144eb9b ffff8800b94db540
 [   29.804611]  ffff8800b95a1dc0 ffffffff81087439 ffff880138cc3a18 ffff880138cc3a18
 [   29.804619]  ffff8800b9464a90 ffff880138cc3a38 ffff8800b95a1df0 ffffffff811f5084
 [   29.804628] Call Trace:
 [   29.804636]  [<ffffffff8144eb9b>] dump_stack+0x4e/0x82
 [   29.804642]  [<ffffffff81087439>] lockdep_rcu_suspicious+0xfc/0x105
 [   29.804649]  [<ffffffff811f5084>] __aa_update_replacedby+0x53/0x7f
 [   29.804655]  [<ffffffff811f5408>] __replace_profile+0x11f/0x1ed
 [   29.804661]  [<ffffffff811f6032>] aa_replace_profiles+0x410/0x57c
 [   29.804668]  [<ffffffff811f16d4>] profile_replace+0x35/0x4c
 [   29.804674]  [<ffffffff81120fa3>] vfs_write+0xad/0x113
 [   29.804680]  [<ffffffff81121609>] SyS_write+0x44/0x7a
 [   29.804687]  [<ffffffff8145bfd2>] system_call_fastpath+0x16/0x1b
 [   29.804691]
 [   29.804694] ===============================
 [   29.804697] [ INFO: suspicious RCU usage. ]
 [   29.804700] 3.11.0+ #5 Not tainted
 [   29.804703] -------------------------------
 [   29.804706] security/apparmor/policy.c:566 suspicious rcu_dereference_check() usage!
 [   29.804709]
 [   29.804709] other info that might help us debug this:
 [   29.804709]
 [   29.804714]
 [   29.804714] rcu_scheduler_active = 1, debug_locks = 1
 [   29.804718] 2 locks held by apparmor_parser/1268:
 [   29.804721]  #0:  (sb_writers#9){.+.+.+}, at: [<ffffffff81120a4c>] file_start_write+0x27/0x29
 [   29.804733]  #1:  (&ns->lock){+.+.+.}, at: [<ffffffff811f5d88>] aa_replace_profiles+0x166/0x57c
 [   29.804744]
 [   29.804744] stack backtrace:
 [   29.804750] CPU: 0 PID: 1268 Comm: apparmor_parser Not tainted 3.11.0+ #5
 [   29.804753] Hardware name: ASUSTeK Computer Inc.         UL50VT          /UL50VT    , BIOS 217     03/01/2010
 [   29.804756]  0000000000000000 ffff8800b95a1d80 ffffffff8144eb9b ffff8800b94db540
 [   29.804764]  ffff8800b95a1db0 ffffffff81087439 ffff8800b95b02b0 0000000000000000
 [   29.804772]  ffff8800b9efba08 ffff880138cc3a38 ffff8800b95a1dd0 ffffffff811f4f94
 [   29.804779] Call Trace:
 [   29.804786]  [<ffffffff8144eb9b>] dump_stack+0x4e/0x82
 [   29.804791]  [<ffffffff81087439>] lockdep_rcu_suspicious+0xfc/0x105
 [   29.804798]  [<ffffffff811f4f94>] aa_free_replacedby_kref+0x4d/0x62
 [   29.804804]  [<ffffffff811f4f47>] ? aa_put_namespace+0x17/0x17
 [   29.804810]  [<ffffffff811f4f0b>] kref_put+0x36/0x40
 [   29.804816]  [<ffffffff811f5423>] __replace_profile+0x13a/0x1ed
 [   29.804822]  [<ffffffff811f6032>] aa_replace_profiles+0x410/0x57c
 [   29.804829]  [<ffffffff811f16d4>] profile_replace+0x35/0x4c
 [   29.804835]  [<ffffffff81120fa3>] vfs_write+0xad/0x113
 [   29.804840]  [<ffffffff81121609>] SyS_write+0x44/0x7a
 [   29.804847]  [<ffffffff8145bfd2>] system_call_fastpath+0x16/0x1b

Reported-by: miles.lane@gmail.com
CC: paulmck@linux.vnet.ibm.com
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2013-09-30 09:54:01 +10:00
Tyler Hicks
71ac7f6255 apparmor: Use shash crypto API interface for profile hashes
Use the shash interface, rather than the hash interface, when hashing
AppArmor profiles. The shash interface does not use scatterlists and it
is a better fit for what AppArmor needs.

This fixes a kernel paging BUG when aa_calc_profile_hash() is passed a
buffer from vmalloc(). The hash interface requires callers to handle
vmalloc() buffers differently than what AppArmor was doing. Due to
vmalloc() memory not being physically contiguous, each individual page
behind the buffer must be assigned to a scatterlist with sg_set_page()
and then the scatterlist passed to crypto_hash_update().

The shash interface does not have that limitation and allows vmalloc()
and kmalloc() buffers to be handled in the same manner.

BugLink: https://launchpad.net/bugs/1216294/
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=62261

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Acked-by: Seth Arnold <seth.arnold@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2013-09-30 09:53:59 +10:00
Linus Torvalds
15c03dd485 Linux 3.12-rc3 2013-09-29 15:02:38 -07:00
Linus Torvalds
30ceb4ec33 USB fixes for 3.12-rc3
Here are a number of USB driver fixes for 3.12-rc3.
 
 These are all for host controller issues that have been reported, and there's a
 fix for an annoying error message that gets printed every time you remove a USB
 3 device from the system that's been bugging me for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are a number of USB driver fixes for 3.12-rc3.

  These are all for host controller issues that have been reported, and
  there's a fix for an annoying error message that gets printed every
  time you remove a USB 3 device from the system that's been bugging me
  for a while"

* tag 'usb-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: dwc3: add support for Merrifield
  USB: fsl/ehci: fix failure of checking PHY_CLK_VALID during reinitialization
  USB: Fix breakage in ffs_fs_mount()
  fsl/usb: Resolve PHY_CLK_VLD instability issue for ULPI phy
  usb/core/devio.c: Don't reject control message to endpoint with wrong direction bit
  usb: chipidea: USB_CHIPIDEA should depend on HAS_DMA
  usb: chipidea: udc: free pending TD at removal procedure
  usb: chipidea: imx: Add usb_phy_shutdown at probe's error path
  usb: chipidea: Fix memleak for ci->hw_bank.regmap when removal
  usb: chipidea: udc: fix the oops after rmmod gadget
  USB: fix PM config symbol in uhci-hcd, ehci-hcd, and xhci-hcd
  USB: OHCI: accept very late isochronous URBs
  USB: UHCI: accept very late isochronous URBs
  USB: iMX21: accept very late isochronous URBs
  usbcore: check usb device's state before sending a Set SEL control transfer
  xhci: Fix race between ep halt and URB cancellation
  usb: Fix xHCI host issues on remote wakeup.
  xhci: Ensure a command structure points to the correct trb on the command ring
  xhci: Fix oops happening after address device timeout
2013-09-29 13:47:35 -07:00
Linus Torvalds
26c019fc85 TTY/Serial fixes for 3.12-rc3
Here are some serial at tty driver fixes for 3.12-rc3
 
 The serial driver fixes some kref leaks, documentation is moved to the proper
 places, and the tty and n_tty fixes resolve some reported regressions.  There
 is still one outstanding tty regression fix that isn't in here yet, as I want
 to test it out some more, it will be sent for 3.12-rc4 if it checks out.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
 "Here are some serial at tty driver fixes for 3.12-rc3

  The serial driver fixes some kref leaks, documentation is moved to the
  proper places, and the tty and n_tty fixes resolve some reported
  regressions.  There is still one outstanding tty regression fix that
  isn't in here yet, as I want to test it out some more, it will be sent
  for 3.12-rc4 if it checks out"

* tag 'tty-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: ar933x_uart: move devicetree binding documentation
  tty: Fix SIGTTOU not sent with tcflush()
  n_tty: Fix EOF push index when termios changes
  serial: pch_uart: remove unnecessary tty_port_tty_get
  serial: pch_uart: fix tty-kref leak in dma-rx path
  serial: pch_uart: fix tty-kref leak in rx-error path
  serial: tegra: fix tty-kref leak
2013-09-29 13:47:00 -07:00
Linus Torvalds
31795c402b Staging fixes for 3.12-rc3
Here are some staging driver fixes, MAINTAINER updates, and a new device
 id.  All of these have been in the linux-next tree, and are pretty
 simple patches.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging fixes from Greg KH:
 "Here are some staging driver fixes, MAINTAINER updates, and a new
  device id.  All of these have been in the linux-next tree, and are
  pretty simple patches"

* tag 'staging-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: r8188eu: Add new device ID
  staging: imx-drm: Fix probe failure
  staging: vt6656: [BUG] iwctl_siwencodeext return if device not open
  staging: vt6656: [BUG] main_usb.c oops on device_close move flag earlier.
  staging: vt6656: rxtx.c [BUG] s_vGetFreeContext dead lock on null apTD.
  Staging: rtl8192u: r819xU_cmdpkt: checking NULL value after doing dev_alloc_skb
  staging: usbip: Orphan usbip
  staging: r8188eu: Add files for new drive: Cocci spatch "noderef"
  staging: r8188eu: Cocci spatch "noderef"
  staging: octeon-usb: Cocci spatch "noderef"
  staging: r8188eu: Add files for new drive: Cocci spatch "noderef"
  MAINTAINERS: staging: dgnc and dgap drivers: add maintainer
  staging: lustre: Cocci spatch "noderef"
2013-09-29 13:46:18 -07:00
Linus Torvalds
434ac47d0f Driver core / sysfs fixes for 3.12-rc3
Here are 2 fixes for 3.12-rc3.  One fixes a sysfs problem with mounting caused
 by 3.12-rc1, and the other is a bug reported by the chromeos developers with
 the driver core.
 
 Both have been in linux-next for a bit.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core / sysfs fixes from Greg KH:
 "Here are 2 fixes for 3.12-rc3.  One fixes a sysfs problem with
  mounting caused by 3.12-rc1, and the other is a bug reported by the
  chromeos developers with the driver core.

  Both have been in linux-next for a bit"

* tag 'driver-core-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  driver core : Fix use after free of dev->parent in device_shutdown
  sysfs: Allow mounting without CONFIG_NET
2013-09-29 13:45:23 -07:00
Linus Torvalds
c23c2234de Char / Misc driver fixes for 3.12-rc3
Here are some HyperV and MEI driver fixes for 3.12-rc3.  They resolve some
 issues that people have been reporting for them.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are some HyperV and MEI driver fixes for 3.12-rc3.  They resolve
  some issues that people have been reporting for them"

* tag 'char-misc-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Drivers: hv: vmbus: Terminate vmbus version negotiation on timeout
  Drivers: hv: util: Correctly support ws2008R2 and earlier
  mei: cancel stall timers in mei_reset
  mei: bus: stop wait for read during cl state transition
  mei: make me client counters less error prone
2013-09-29 13:44:48 -07:00
Anna Schumaker
367156d9a8 NFS: Give "flavor" an initial value to fix a compile warning
The previous patch introduces a compile warning by not assigning an initial
value to the "flavor" variable.  This could only be a problem if the server
returns a supported secflavor list of length zero, but it's better to
fix this before it's ever hit.

Signed-off-by: Anna Schumaker <bjschuma@netapp.com>
Acked-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-29 16:03:34 -04:00
Weston Andros Adamson
58a8cf1212 NFSv4.1: try SECINFO_NO_NAME flavs until one works
Call nfs4_lookup_root_sec for each flavor returned by SECINFO_NO_NAME until
one works.

One example of a situation this fixes:

 - server configured for krb5
 - server principal somehow gets deleted from KDC
 - server still thinking krb is good, sends krb5 as first entry in
    SECINFO_NO_NAME response
 - client tries krb5, but this fails without even sending an RPC because
    gssd's requests to the KDC can't find the server's principal

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-29 16:03:34 -04:00
Trond Myklebust
acd65e5bc1 NFSv4.1: Ensure memory ordering between nfs4_ds_connect and nfs4_fl_prepare_ds
We need to ensure that the initialisation of the data server nfs_client
structure in nfs4_ds_connect is correctly ordered w.r.t. the read of
ds->ds_clp in nfs4_fl_prepare_ds.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-29 15:58:35 -04:00
Trond Myklebust
52b26a3e1b NFSv4.1: nfs4_fl_prepare_ds - fix bugs when the connect attempt fails
- Fix an Oops when nfs4_ds_connect() returns an error.
- Always check the device status after waiting for a connect to complete.

Reported-by: Andy Adamson <andros@netapp.com>
Reported-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: <stable@vger.kernel.org> # v3.10+
2013-09-29 15:56:35 -04:00
Linus Torvalds
cac6653529 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf revert from Ingo Molnar:
 "This fixes the 'perf top' regression Markus Trippelsdorf reported"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "perf symbols: Demangle cloned functions"
2013-09-29 10:04:03 -07:00
Linus Torvalds
b97b869a83 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Nothing too major, radeon still has some dpm changes for off by
  default.

  Radeon, intel, msm:
   - radeon: a few more dpm fixes (still off by default), uvd fixes
   - i915: runtime warn backtrace and regression fix
   - msm: iommu changes fallout"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (27 commits)
  drm/msm: use drm_gem_dumb_destroy helper
  drm/msm: deal with mach/iommu.h removal
  drm/msm: Remove iommu include from mdp4_kms.c
  drm/msm: Odd PTR_ERR usage
  drm/i915: Fix up usage of SHRINK_STOP
  drm/radeon: fix hdmi audio on DCE3.0/3.1 asics
  drm/i915: preserve pipe A quirk in i9xx_set_pipeconf
  drm/i915/tv: clear adjusted_mode.flags
  drm/i915/dp: increase i2c-over-aux retry interval on AUX DEFER
  drm/radeon/cik: fix overflow in vram fetch
  drm/radeon: add missing hdmi callbacks for rv6xx
  drm/i915: Use a temporary va_list for two-pass string handling
  drm/radeon/uvd: lower msg&fb buffer requirements on UVD3
  drm/radeon: disable tests/benchmarks if accel is disabled
  drm/radeon: don't set default clocks for SI when DPM is disabled
  drm/radeon/dpm/ci: filter clocks based on voltage/clk dep tables
  drm/radeon/dpm/si: filter clocks based on voltage/clk dep tables
  drm/radeon/dpm/ni: filter clocks based on voltage/clk dep tables
  drm/radeon/dpm/btc: filter clocks based on voltage/clk dep tables
  drm/radeon/dpm: fetch the max clk from voltage dep tables helper
  ...
2013-09-29 10:02:40 -07:00
Ingo Molnar
14951f22f1 Revert "perf symbols: Demangle cloned functions"
This reverts commit de95ab5364.

Markus Trippelsdorf reported that this commit broke 'perf top':

 > I just see a gray screen with no text at all. Sometimes the
 > following error messages are printed:
 >
 >  *** Error in `perf': invalid fastbin entry (free): 0x00000000029b18c0
 >  ***
 >  *** Error in `perf': malloc(): memory corruption (fast): 0x0000000000ee0b10 ***

While this code is fixable, the commit itself fails on several levels:

 - it should have been a separate helper function
 - why the heck does it do strchr() twice
 - it casts a const char * over into char *
 - sloppy style
 - it's not even a regression fix!

So lets revert it and re-try the patch in v3.13.

Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-09-29 16:12:54 +02:00
Dave Airlie
665441791f Merge branch 'msm-fixes-3.12-rc2' of git://people.freedesktop.org/~robclark/linux into drm-fixes
A small fix + deal with fallout of iommu changes + use new
drm_gem_dumb_destroy helper.

* 'msm-fixes-3.12-rc2' of git://people.freedesktop.org/~robclark/linux:
  drm/msm: use drm_gem_dumb_destroy helper
  drm/msm: deal with mach/iommu.h removal
  drm/msm: Remove iommu include from mdp4_kms.c
  drm/msm: Odd PTR_ERR usage
2013-09-29 10:06:28 +10:00
Eric Dumazet
9a3bab6b05 net: net_secret should not depend on TCP
A host might need net_secret[] and never open a single socket.

Problem added in commit aebda156a5
("net: defer net_secret[] initialization")

Based on prior patch from Hannes Frederic Sowa.

Reported-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Hannes Frederic Sowa <hannes@strressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-28 15:19:40 -07:00
Eric W. Biederman
50624c934d net: Delay default_device_exit_batch until no devices are unregistering v2
There is currently serialization network namespaces exiting and
network devices exiting as the final part of netdev_run_todo does not
happen under the rtnl_lock.  This is compounded by the fact that the
only list of devices unregistering in netdev_run_todo is local to the
netdev_run_todo.

This lack of serialization in extreme cases results in network devices
unregistering in netdev_run_todo after the loopback device of their
network namespace has been freed (making dst_ifdown unsafe), and after
the their network namespace has exited (making the NETDEV_UNREGISTER,
and NETDEV_UNREGISTER_FINAL callbacks unsafe).

Add the missing serialization by a per network namespace count of how
many network devices are unregistering and having a wait queue that is
woken up whenever the count is decreased.  The count and wait queue
allow default_device_exit_batch to wait until all of the unregistration
activity for a network namespace has finished before proceeding to
unregister the loopback device and then allowing the network namespace
to exit.

Only a single global wait queue is used because there is a single global
lock, and there is a single waiter, per network namespace wait queues
would be a waste of resources.

The per network namespace count of unregistering devices gives a
progress guarantee because the number of network devices unregistering
in an exiting network namespace must ultimately drop to zero (assuming
network device unregistration completes).

The basic logic remains the same as in v1.  This patch is now half
comment and half rtnl_lock_unregistering an expanded version of
wait_event performs no extra work in the common case where no network
devices are unregistering when we get to default_device_exit_batch.

Reported-by: Francesco Ruggeri <fruggeri@aristanetworks.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-28 15:09:15 -07:00
Linus Torvalds
669fc2f0c7 Merge branches 'sched-urgent-for-linus', 'timers-urgent-for-linus' and 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler, timer and x86 fixes from Ingo Molnar:
 - A context tracking ARM build and functional fix
 - A handful of ARM clocksource/clockevent driver fixes
 - An AMD microcode patch level sysfs reporting fixlet

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  arm: Fix build error with context tracking calls

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource: em_sti: Set cpu_possible_mask to fix SMP broadcast
  clocksource: of: Respect device tree node status
  clocksource: exynos_mct: Set IRQ affinity when the CPU goes online
  arm: clocksource: mvebu: Use the main timer as clock source from DT

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode/AMD: Fix patch level reporting for family 15h
2013-09-28 14:22:17 -07:00
Linus Torvalds
9b565a8051 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "A couple of tooling fixlets and a PMU detection printout fix"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86: Fix PMU detection printout when no PMU is detected
  perf symbols: Demangle cloned functions
  perf machine: Fix path unpopulated in machine__create_modules()
  perf tools: Explicitly add libdl dependency
  perf probe: Fix probing symbols with optimization suffix
  perf trace: Add mmap2 handler
  perf kmem: Make it work again on non NUMA machines
2013-09-28 14:21:13 -07:00
Linus Torvalds
ddd23eb182 xfs: bugfixes for 3.12-rc3
- fix for directory node collapse regression
 - fix for recovery over stale on disk structures
 - fix for eofblocks ioctl
 - fix asserts in xfs_inode_free
 - lock the ail before removing an item from it
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Merge tag 'xfs-for-linus-v3.12-rc3' of git://oss.sgi.com/xfs/xfs

Pull xfs bugfixes from Ben Myers:
 - fix for directory node collapse regression
 - fix for recovery over stale on disk structures
 - fix for eofblocks ioctl
 - fix asserts in xfs_inode_free
 - lock the ail before removing an item from it

* tag 'xfs-for-linus-v3.12-rc3' of git://oss.sgi.com/xfs/xfs:
  xfs: fix node forward in xfs_node_toosmall
  xfs: log recovery lsn ordering needs uuid check
  xfs: fix XFS_IOC_FREE_EOFBLOCKS definition
  xfs: asserting lock not held during freeing not valid
  xfs: lock the AIL before removing the buffer item
2013-09-28 13:52:05 -07:00
Linus Torvalds
057d5e986e Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Some driver bugfixes for the I2C subsystem"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: ismt: initialize DMA buffer
  i2c: designware: 10-bit addressing mode enabling if I2C_DYNAMIC_TAR_UPDATE is set
  i2c: mv64xxx: Do not use writel_relaxed()
  i2c: mv64xxx: Fix some build warnings
  i2c: s3c2410: fix clk_disable/clk_unprepare WARNings
2013-09-28 13:44:09 -07:00
Linus Torvalds
ec220be785 ACPI and power management fixes for 3.12-rc3
1) After recent locking changes in the cpufreq core it is possible
     to trigger BUG_ON(!policy) in lock_policy_rwsem_read() if
     cpufreq_get() is called before registering a cpufreq driver.
     Fix from Viresh Kumar.
 
  2) If intel_pstate has been loaded already, it doesn't make sense
     to do anything in acpi_cpufreq_init() and moreover doing something
     in there in that case may be harmful, so make that function return
     immediately if another cpufreq driver is already present.  From
     Yinghai Lu.
 
  3) The ACPI IPMI driver sometimes attempts to acquire a mutex from
     interrupt context, which can be avoided by replacing that mutex
     with a spinlock.  From Lv Zheng.
 
  4) A NULL pointer may be dereferenced by the exynos5440 cpufreq
     driver if a memory allocation made by it fails.  Fix from
     Sachin Kamat.
 
  5) Hanjun Guo's commit fixes a typo in the kerneldoc comment
     documenting acpi_bus_unregister_driver().
 
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Merge tag 'pm+acpi-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management fixes from Rafael Wysocki:
 "These fix one recent cpufreq regression, a few older bugs that may
  harm users and a kerneldoc typo.

  Specifics:

   1) After the recent locking changes in the cpufreq core it is
      possible to trigger BUG_ON(!policy) in lock_policy_rwsem_read() if
      cpufreq_get() is called before registering a cpufreq driver.  Fix
      from Viresh Kumar.

   2) If intel_pstate has been loaded already, it doesn't make sense to
      do anything in acpi_cpufreq_init() and moreover doing something in
      there in that case may be harmful, so make that function return
      immediately if another cpufreq driver is already present.  From
      Yinghai Lu.

   3) The ACPI IPMI driver sometimes attempts to acquire a mutex from
      interrupt context, which can be avoided by replacing that mutex
      with a spinlock.  From Lv Zheng.

   4) A NULL pointer may be dereferenced by the exynos5440 cpufreq
      driver if a memory allocation made by it fails.  Fix from Sachin
      Kamat.

   5) Hanjun Guo's commit fixes a typo in the kerneldoc comment
      documenting acpi_bus_unregister_driver()"

* tag 'pm+acpi-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / scan: fix typo in comments of acpi_bus_unregister_driver()
  cpufreq: exynos5440: Fix potential NULL pointer dereference
  cpufreq: check cpufreq driver is valid and cpufreq isn't disabled in cpufreq_get()
  acpi-cpufreq: skip loading acpi_cpufreq after intel_pstate
  ACPI / IPMI: Fix atomic context requirement of ipmi_msg_handler()
2013-09-28 13:27:31 -07:00
Yinghai Lu
f41f064cf4 PCI: Workaround missing pci_set_master in pci drivers
Ben Herrenschmidt found that commit 928bea9648 ("PCI: Delay enabling
bridges until they're needed") breaks PCI in some powerpc environments.

The reason is that the PCIe port driver will call pci_enable_device() on
the bridge, so the device is enabled, but skips pci_set_master because
pcie_port_auto and no acpi on powerpc.

Because of that, pci_enable_bridge() later on (called as a result of the
child device driver doing pci_enable_device) will see the bridge as
already enabled and will not call pci_set_master() on it.

Fixed by add checking in pci_enable_bridge, and call pci_set_master
if driver skip that.

That will make the code more robot and wade off problem for missing
pci_set_master in drivers.

Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-28 13:25:30 -07:00
Catalin\(ux\) M. BOIE
7df37ff33d IPv6 NAT: Do not drop DNATed 6to4/6rd packets
When a router is doing DNAT for 6to4/6rd packets the latest
anti-spoofing commit 218774dc ("ipv6: add anti-spoofing checks for
6to4 and 6rd") will drop them because the IPv6 address embedded does
not match the IPv4 destination. This patch will allow them to pass by
testing if we have an address that matches on 6to4/6rd interface.  I
have been hit by this problem using Fedora and IPV6TO4_IPV4ADDR.
Also, log the dropped packets (with rate limit).

Signed-off-by: Catalin(ux) M. BOIE <catab@embedromix.ro>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-28 15:56:15 -04:00
Ming Lei
60e453a940 USBNET: fix handling padding packet
Commit 638c5115a7949(USBNET: support DMA SG) introduces DMA SG
if the usb host controller is capable of building packet from
discontinuous buffers, but missed handling padding packet when
building DMA SG.

This patch attachs the pre-allocated padding packet at the
end of the sg list, so padding packet can be sent to device
if drivers require that.

Reported-by: David Laight <David.Laight@aculab.com>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-28 15:42:49 -04:00
Linus Torvalds
aeebc26457 Merge branch 'lockref' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 lockref enablement from Heiko Carstens:
 "Enabling the new lockless lockref variant on s390 would have been
  trivial until Tony Luck added a cpu_relax() call into the
  CMPXCHG_LOOP(), with commit d472d9d98b ("lockref: Relax in cmpxchg
  loop")

  As already mentioned cpu_relax() is very expensive on s390 since it
  yields() the current virtual cpu.  So we are talking of several
  thousand cycles.  Considering this enabling the lockless lockref
  variant would contradict the intention of the new semantics.  And also
  some quick measurements show performance regressions of 50% and more.

  Simply removing the cpu_relax() call again seems also not very
  desireable since Waiman Long reported that for some workloads the call
  improved performance by 5%."

* 'lockref' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: enable ARCH_USE_CMPXCHG_LOCKREF
  lockref: use arch_mutex_cpu_relax() in CMPXCHG_LOOP()
  mutex: replace CONFIG_HAVE_ARCH_MUTEX_CPU_RELAX with simple ifdef
2013-09-28 12:36:19 -07:00
Jean Delvare
3a126f85e0 kernel/params: fix handling of signed integer types
Commit 6072ddc852 ("kernel: replace strict_strto*() with kstrto*()")
broke the handling of signed integer types, fix it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reported-by: Christian Kujau <lists@nerdbynature.de>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-28 12:35:52 -07:00
Linus Torvalds
f2e98aa830 DeviceTree fixes for 3.12
Clean-up to fix some warnings for !OF builds and spelling fixes in docs
 
 - Clean-up openrisc prom.h
 - Fix warnings caused by of_irq.h ifdefs
 - Spelling fix for Synopsys
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Merge tag 'devicetree-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree fixes from Rob Herring:
 "Clean-up to fix some warnings for !OF builds and spelling fixes in
  docs:

   - Clean-up openrisc prom.h
   - Fix warnings caused by of_irq.h ifdefs
   - Spelling fix for Synopsys"

* tag 'devicetree-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dts: Fix misspelling of Synopsys
  of: clean-up ifdefs in of_irq.h
  openrisc: clean-up prom.h
2013-09-28 11:57:26 -07:00
Linus Torvalds
874db4d800 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "Just a few relatively small ARM fixes found since the last merge
  window, nothing too exciting"

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7837/3: fix Thumb-2 bug in AES assembler code
  ARM: only allow kernel mode neon with AEABI
  ARM: 7839/1: entry: fix tracing of ARM-private syscalls
  ARM: 7836/1: add __get_user_unaligned/__put_user_unaligned
2013-09-28 11:56:34 -07:00
James Ralston
bf4169100c i2c: ismt: initialize DMA buffer
This patch adds code to initialize the DMA buffer to compensate for
possible hardware data corruption.

Signed-off-by: James Ralston <james.d.ralston@intel.com>
[wsa: changed to use 'sizeof']
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-09-28 16:32:12 +02:00
Rob Clark
30600a9092 drm/msm: use drm_gem_dumb_destroy helper
Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-09-28 10:14:06 -04:00
Rob Clark
33b559630c drm/msm: deal with mach/iommu.h removal
We still need an API exported by msm iommu driver (but not visible in
any public header anymore).  For now, just declare the prototype
ourselves, but when msm iommu driver provides a better option, use that
instead.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-09-28 10:07:06 -04:00
Ingo Molnar
8a3da6c7d0 perf/x86: Fix PMU detection printout when no PMU is detected
Ran into this cryptic PMU bootup log recently:

[    0.124047] Performance Events:
[    0.125000] smpboot: ...

Turns out we print this if no PMU is detected. Fall back to
the right condition so that the following is printed:

[    0.122381] Performance Events: no PMU driver, software events only.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/n/tip-u2fwaUffakjp0qkpRfqljgsn@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-09-28 15:48:48 +02:00
Joerg Roedel
c55d1c41df drm/msm: Remove iommu include from mdp4_kms.c
The include file has been removed and the file does not
need it anyway, so remove it. Fixes a compile error.

Signed-off-by: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-09-28 09:17:31 -04:00
Thomas Meyer
e4826a94c7 drm/msm: Odd PTR_ERR usage
The variable priv->kms is not initialized yet.

Found by "scripts/coccinelle/tests/odd_ptr_err.cocci".
PTR_ERR should access the value just tested by IS_ERR.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
2013-09-28 08:53:26 -04:00
Sachin Kamat
d3789c3ee2 iio: amplifiers: ad8366: Remove regulator_put
Since devm_regulator_get is used, regulator_put should not be
used. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-28 11:49:45 +01:00
Heiko Carstens
efc1d23b3d s390: enable ARCH_USE_CMPXCHG_LOCKREF
Enable ARCH_USE_CMPXCHG_LOCKREF since it shows performance improvements
with Linus' simple stat() test case of up to 50% on a 30 cpu system.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2013-09-28 12:46:29 +02:00
Heiko Carstens
491f6f8e5f lockref: use arch_mutex_cpu_relax() in CMPXCHG_LOOP()
Make use of arch_mutex_cpu_relax() so architectures can override the
default cpu_relax() semantics.
This is especially useful for s390, where cpu_relax() means that we
yield() the current (virtual) cpu and therefore is very expensive,
and would contradict the whole purpose of the lockless cmpxchg loop.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2013-09-28 12:46:24 +02:00
Heiko Carstens
083986e824 mutex: replace CONFIG_HAVE_ARCH_MUTEX_CPU_RELAX with simple ifdef
Linus suggested to replace

 #ifndef CONFIG_HAVE_ARCH_MUTEX_CPU_RELAX
 #define arch_mutex_cpu_relax() cpu_relax()
 #endif

with just a simple

  #ifndef arch_mutex_cpu_relax
  # define arch_mutex_cpu_relax() cpu_relax()
  #endif

to get rid of CONFIG_HAVE_CPU_RELAX_SIMPLE. So architectures can
simply define arch_mutex_cpu_relax if they want an architecture
specific function instead of having to add a select statement in
their Kconfig in addition.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2013-09-28 12:46:21 +02:00
Ingo Molnar
62d08aec6a Merge branch 'context_tracking/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks into sched/urgent
Pull context tracking ARM fix from Frederic Weisbecker.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-09-28 08:50:09 +02:00
Dave Airlie
41ed7fe92f Merge branch 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
More radeon fixes for 3.12.  Kind of all over the place: UVD, DPM,
tiling, etc.

* 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: fix hdmi audio on DCE3.0/3.1 asics
  drm/radeon/cik: fix overflow in vram fetch
  drm/radeon: add missing hdmi callbacks for rv6xx
  drm/radeon/uvd: lower msg&fb buffer requirements on UVD3
  drm/radeon: disable tests/benchmarks if accel is disabled
  drm/radeon: don't set default clocks for SI when DPM is disabled
  drm/radeon/dpm/ci: filter clocks based on voltage/clk dep tables
  drm/radeon/dpm/si: filter clocks based on voltage/clk dep tables
  drm/radeon/dpm/ni: filter clocks based on voltage/clk dep tables
  drm/radeon/dpm/btc: filter clocks based on voltage/clk dep tables
  drm/radeon/dpm: fetch the max clk from voltage dep tables helper
  drm/radeon: fix missed variable sized access
  drm/radeon: Make r100_cp_ring_info() and radeon_ring_gfx() safe (v2)
  drm/radeon/cik: Add tiling mode index for 1D tiled depth/stencil surfaces
  drm/radeon/cik: Fix encoding of number of banks in tiling configuration info
  drm/radeon/cik: Fix printing of client name on VM protection fault
  drm/radeon: additional gcc fixes for radeon_atombios.c
  drm/radeon: avoid UVD corruption on AGP cards using GPU gart
2013-09-28 14:45:30 +10:00
Dave Airlie
36dec40ceb Merge tag 'drm-intel-fixes-2013-09-26' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
Just a few fixes for regressions and other serious stuff.

Two fix state tracking mismatches, together with an additional patch that
I've submitted to stable (somehow forgotten to tag it) we should have them
fixed now (I hope).

* tag 'drm-intel-fixes-2013-09-26' of git://people.freedesktop.org/~danvet/drm-intel:
  drm/i915: Fix up usage of SHRINK_STOP
  drm/i915: preserve pipe A quirk in i9xx_set_pipeconf
  drm/i915/tv: clear adjusted_mode.flags
  drm/i915/dp: increase i2c-over-aux retry interval on AUX DEFER
  drm/i915: Use a temporary va_list for two-pass string handling
2013-09-28 08:46:44 +10:00
Sucheta Chakraborty
6645161513 qlcnic: Fix register device in FAILED state for 82xx.
o Commit 7e2cf4feba
  ("qlcnic: change driver hardware interface mechanism")
  has overwritten
  commit b43e5ee76a
  ("qlcnic: Register device in FAILED state")

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-27 17:26:20 -04:00
Ajit Khaparde
a60b3a13ab be2net: Fix to display the VLAN priority for a VF
VLAN priority is not being displayed for a VF currently when user executes
"ip link show" command. This patch fixes it.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-27 17:11:49 -04:00
Ajit Khaparde
b9fc0e53b0 be2net: Fix to configure VLAN priority for a VF interface.
Thix fix allows the VLAN priority to be configured for a VF interface
via the "ip link set DEVICE vf NUM" path.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-27 17:11:49 -04:00