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413874 commits

Author SHA1 Message Date
Timo Teräs
0e3da5bb8d ip_gre: fix msg_name parsing for recvfrom/recvmsg
ipgre_header_parse() needs to parse the tunnel's ip header and it
uses mac_header to locate the iphdr. This got broken when gre tunneling
was refactored as mac_header is no longer updated to point to iphdr.
Introduce skb_pop_mac_header() helper to do the mac_header assignment
and use it in ipgre_rcv() to fix msg_name parsing.

Bug introduced in commit c544193214 (GRE: Refactor GRE tunneling code.)

Cc: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-18 17:44:33 -05:00
Mugunthan V N
a81d8762d7 drivers: net cpsw: Enable In Band mode in cpsw for 10 mbps
This patch adds support for enabling In Band mode in 10 mbps speed.
RGMII supports 1 Gig and 100 mbps mode for Forced mode of operation.
For 10mbps mode it should be configured to in band mode so that link
status, duplexity and speed are determined from the RGMII input data
stream

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-18 16:54:19 -05:00
David S. Miller
405a96d6ea Merge branch 'bond_locking'
Ding Tianhong says:

====================
Jay Vosburgh said that the bond_3ad_adapter_speed_changed and
bond_3ad_adapter_duplex_changed is called with RTNL only, and
the functions will modify the port's information with no further
locking, they will not mutex against bond state machine and
incoming LACPDU which do not hold RTNL, So I add port lock to
protect the port information.

But they are not critical bugs, they exist since day one, and till
now they have never been hit and reported, because change for speed
and duplex is very rare, and will not occur critical problem.

The comments in the function is very old, cleanup the comments together.
====================

Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-18 16:52:34 -05:00
dingtianhong
108db73637 bonding: protect port for bond_3ad_handle_link_change()
The bond_3ad_handle_link_change is called with RTNL only,
and the function will modify the port's information with
no further locking, it will not mutex against bond state
machine and incoming LACPDU which do not hold RTNL, So I
add __get_state_machine_lock to protect the port.

But it is not a critical bug, it exist since day one, and till
now it has never been hit and reported, because changes to
speed is very rare, and will not occur critical problem.

The comments in the function is very old, cleanup it and
add a new pr_debug to debug the port message.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-18 16:52:26 -05:00
dingtianhong
bca44a7341 bonding: protect port for bond_3ad_adapter_duplex_changed()
Jay Vosburgh said that the bond_3ad_adapter_duplex_changed is
called with RTNL only, and the function will modify the port's
information with no further locking, it will not mutex against
bond state machine and incoming LACPDU which do not hold RTNL,
So I add __get_state_machine_lock to protect the port.

But it is not a critical bug, it exist since day one, and till
now it has never been hit and reported, because changes to
speed is very rare, and will not occur critical problem.

The comments in the function is very old, cleanup it.

Suggested-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-18 16:52:26 -05:00
dingtianhong
71a06c59d1 bonding: protect port for bond_3ad_adapter_speed_changed()
Jay Vosburgh said that the bond_3ad_adapter_speed_changed is
called with RTNL only, and the function will modify the port's
information with no further locking, it will not mutex against
bond state machine and incoming LACPDU which do not hold RTNL,
So I add __get_state_machine_lock to protect the port.

But it is not a critical bug, it exist since day one, and till
now it has never been hit and reported, because changes to
speed is very rare, and will not occur critical problem.

The comment in the function is very old, cleanup it.

Suggested-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-18 16:52:25 -05:00
Linus Torvalds
35eecf0522 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Definitely seems quieter this week,

  Radeon, intel, intel broadwell, vmwgfx, ttm, armada, and a couple of
  core fixes, one revert in radeon

  Most of these are either going to stable or fixes for things
  introduced in the merge window"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (30 commits)
  drm/edid: add quirk for BPC in Samsung NP700G7A-S01PL notebook
  drm/ttm: Fix accesses through vmas with only partial coverage
  drm/nouveau: only runtime suspend by default in optimus configuration
  drm: don't double-free on driver load error
  Revert "drm/radeon: Implement radeon_pci_shutdown"
  drm/radeon: add missing display tiling setup for oland
  drm/radeon: fix typo in cik_copy_dma
  drm/radeon/cik: plug in missing blit callback
  drm/radeon/dpm: Fix hwmon crash
  drm/radeon: Fix sideport problems on certain RS690 boards
  drm/i915: don't update the dri1 breadcrumb with modesetting
  DRM: Armada: prime refcounting bug fix
  DRM: Armada: fix printing of phys_addr_t/dma_addr_t
  DRM: Armada: destroy framebuffer after helper
  DRM: Armada: implement lastclose() for fbhelper
  drm/i915: Repeat eviction search after idling the GPU
  drm/vmwgfx: Add max surface memory param
  drm/i915: Fix use-after-free in do_switch
  drm/i915: fix pm init ordering
  drm/i915: Hold mutex across i915_gem_release
  ...
2013-12-17 16:59:59 -08:00
Linus Torvalds
8b80384169 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "A quick batch of fixes, including the annoying bad lock stack problem
  introduced by udp_sk_rx_dst_set() locking change:

   1) Use xchg() instead of sk_dst_lock() in udp_sk_rx_dst_set(), from
      Eric Dumazet.

   2) qlcnic bug fixes from Himanshu Madhani and Manish Chopra.

   3) Update IPSEC MAINTAINERS entry, from Steffen Klassert.

   4) Administrative neigh entry changes should generate netlink
      notifications the same as event generated ones.  From Bob
      Gilligan.

   5) Netfilter SYNPROXY fixes from Patrick McHardy.

   6) Netfilter nft_reject endianness fixes from Eric Leblond"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  qlcnic: Dump mailbox registers when mailbox command times out.
  qlcnic: Fix mailbox processing during diagnostic test
  qlcnic: Allow firmware dump collection when auto firmware recovery is disabled
  qlcnic: Fix memory allocation
  qlcnic: Fix TSS/RSS validation for 83xx/84xx series adapter.
  qlcnic: Fix TSS/RSS ring validation logic.
  qlcnic: Fix diagnostic test for all adapters.
  qlcnic: Fix usage of netif_tx_{wake, stop} api during link change.
  xen-netback: fix fragments error handling in checksum_setup_ip()
  neigh: Netlink notification for administrative NUD state change
  ipv4: improve documentation of ip_no_pmtu_disc
  net: unix: allow bind to fail on mutex lock
  MAINTAINERS: Update the IPsec maintainer entry
  udp: ipv4: do not use sk_dst_lock from softirq context
  netvsc: don't flush peers notifying work during setting mtu
  can: peak_usb: fix mem leak in pcan_usb_pro_init()
  can: ems_usb: fix urb leaks on failure paths
  sctp: loading sctp when load sctp_probe
  netfilter: nft_reject: fix endianness in dump function
  netfilter: SYNPROXY target: restrict to INPUT/FORWARD
2013-12-17 15:53:24 -08:00
David S. Miller
781069279f Merge branch 'fixes-for-3.13' of git://gitorious.org/linux-can/linux-can
Marc Kleine-Budde says:

====================
this is a pull request with two fixes for net/master, the current release
cycle.

It consists of a patch by Alexey Khoroshilov from the Linux Driver Verification
project, which fixes a memory leak in ems_usb's failure patch. And a patch by
me which fixes a memory leak in the peak usb driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 17:21:30 -05:00
David S. Miller
a7c12639bd Merge branch 'qlcnic'
Himanshu Madhani says:

====================
qlcnic: Bug fixes.

This series contains bug fixes for mailbox handling and multi Tx queue support
for all supported adapters.

changes from v1 -> v2
o updated patch to fix usage of netif_tx_{wake,stop} api during link change
  as per David Miller's suggestion.
o Dropped patch to use spinklock per tx queue for more work.
o Added reworked patch for memory allocation failures.
o Added patch to allow capturing of dump, when auto recovery is disabled in firmware.
o Added patches for mailbox interrupt handling and debugging data for mailbox failure.

Please apply to net.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 16:25:24 -05:00
Manish chopra
0951c5c214 qlcnic: Dump mailbox registers when mailbox command times out.
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 16:24:50 -05:00
Manish chopra
e49df7947a qlcnic: Fix mailbox processing during diagnostic test
o Do not enable mailbox polling in case of legacy interrupt.
  Process mailbox AEN/response from the interrupt.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 16:24:50 -05:00
Manish Chopra
30fa15f64e qlcnic: Allow firmware dump collection when auto firmware recovery is disabled
o Allow driver to collect firmware dump, during a forced firmware dump
  operation, when auto firmware recovery is disabled. Also, during this
  operation, driver should not allow reset recovery to be performed.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 16:24:50 -05:00
Manish Chopra
3fc38e267b qlcnic: Fix memory allocation
o Use vzalloc() instead of kzalloc() for allocation of
  bootloader size memory. kzalloc() may fail to allocate
  the size of bootloader

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 16:24:50 -05:00
Himanshu Madhani
b17a44d8b8 qlcnic: Fix TSS/RSS validation for 83xx/84xx series adapter.
o Current code was not allowing the user to configure more
  than one Tx ring using ethtool for 83xx/84xx adapter.
  This regression was introduced by commit id
  18afc102fd ("qlcnic: Enable
  multiple Tx queue support for 83xx/84xx Series adapter.")

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 16:24:50 -05:00
Himanshu Madhani
f9566265d7 qlcnic: Fix TSS/RSS ring validation logic.
o TSS/RSS ring validation does not take into account that either
  of these ring values can be 0. This patch fixes this validation
  and would fail set_channel operation if any of these ring value
  is 0. This regression was added as part of commit id
  34e8c406fd ("qlcnic: refactor Tx/SDS
  ring calculation and validation in driver.")

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 16:24:50 -05:00
Himanshu Madhani
3bf517df0d qlcnic: Fix diagnostic test for all adapters.
o Driver should re-allocate all Tx queues after completing
  diagnostic tests. This regression was added by commit id
  c2c5e3a068 ("qlcnic: Enable
  diagnostic test for multiple Tx queues.")

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 16:24:50 -05:00
Himanshu Madhani
b84caae486 qlcnic: Fix usage of netif_tx_{wake, stop} api during link change.
o Driver was using netif_tx_{stop,wake}_all_queues() api
  during link change event. Remove these api calls to
  manage queue start/stop event, as core networking stack
  will manage this based on netif_carrier_{on,off} call.
  These API's were modified as part of commit id
  012ec81223 ("qlcnic: Multi Tx
  queue support for 82xx Series adapter.")

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 16:24:49 -05:00
Wei Yongjun
7022ef8b2a xen-netback: fix fragments error handling in checksum_setup_ip()
Fix to return -EPROTO error if fragments detected in checksum_setup_ip().

Fixes: 1431fb31ec ('xen-netback: fix fragment detection in checksum setup')
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 16:18:18 -05:00
Bob Gilligan
53385d2d1d neigh: Netlink notification for administrative NUD state change
The neighbour code sends up an RTM_NEWNEIGH netlink notification if
the NUD state of a neighbour cache entry is changed by a timer (e.g.
from REACHABLE to STALE), even if the lladdr of the entry has not
changed.

But an administrative change to the the NUD state of a neighbour cache
entry that does not change the lladdr (e.g. via "ip -4 neigh change
...  nud ...") does not trigger a netlink notification.  This means
that netlink listeners will not hear about administrative NUD state
changes such as from a resolved state to PERMANENT.

This patch changes the neighbor code to generate an RTM_NEWNEIGH
message when the NUD state of an entry is changed administratively.

Signed-off-by: Bob Gilligan <gilligan@aristanetworks.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 16:14:35 -05:00
Linus Torvalds
b0031f227e regulator/clk: Fix s2mps11 build
This patch fixes a build failure that appeared in v3.13-rc4 due to an
 RTC/MFD update merged via -mm.
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Merge tag 's2mps11-build' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator/clk fix from Mark Brown:
 "Fix s2mps11 build

  This patch fixes a build failure that appeared in v3.13-rc4 due to an
  RTC/MFD update merged via -mm"

* tag 's2mps11-build' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  mfd: s2mps11: Fix build after regmap field rename in sec-core.c
2013-12-17 12:57:36 -08:00
Linus Torvalds
941ef73dbe Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Ingo Molnar:
 "Five self-contained fixlets:

   - fix clocksource driver build bug
   - fix two sched_clock() bugs triggering on specific hardware
   - fix devicetree enumeration bug affecting specific hardware
   - fix irq handler registration race resulting in boot crash
   - fix device node refcount bug"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource: dw_apb_timer_of: Fix support for dts binding "snps,dw-apb-timer"
  clocksource: dw_apb_timer_of: Fix read_sched_clock
  clocksource: sunxi: Stop timer from ticking before enabling interrupts
  clocksource: clksrc-of: Do not drop unheld reference on device node
  clocksource: armada-370-xp: Register sched_clock after the counter reset
  clocksource: time-efm32: Select CLKSRC_MMIO
2013-12-17 12:36:26 -08:00
Linus Torvalds
dd0508093b Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
 "Three fixes for scheduler crashes, each triggers in relatively rare,
  hardware environment dependent situations"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Rework sched_fair time accounting
  math64: Add mul_u64_u32_shr()
  sched: Remove PREEMPT_NEED_RESCHED from generic code
  sched: Initialize power_orig for overlapping groups
2013-12-17 12:35:54 -08:00
Linus Torvalds
1070d5ac19 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fix from Ingo Molnar:
 "An x86/intel event constraint fix"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86: Fix constraint table end marker bug
2013-12-17 12:35:05 -08:00
Hannes Frederic Sowa
188b04d580 ipv4: improve documentation of ip_no_pmtu_disc
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 15:20:15 -05:00
David S. Miller
7089fdd814 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
The following patchset contains two Netfilter fixes for your net
tree, they are:

* Fix endianness in nft_reject, the NFTA_REJECT_TYPE netlink attributes
  was not converted to network byte order as needed by all nfnetlink
  subsystems, from Eric Leblond.

* Restrict SYNPROXY target to INPUT and FORWARD chains, this avoid a
  possible crash due to misconfigurations, from Patrick McHardy.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 15:06:20 -05:00
Sasha Levin
37ab4fa784 net: unix: allow bind to fail on mutex lock
This is similar to the set_peek_off patch where calling bind while the
socket is stuck in unix_dgram_recvmsg() will block and cause a hung task
spew after a while.

This is also the last place that did a straightforward mutex_lock(), so
there shouldn't be any more of these patches.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 15:04:42 -05:00
Steffen Klassert
d1fc502476 MAINTAINERS: Update the IPsec maintainer entry
Add the IPsec git trees and some pure IPsec modules
to the IPsec section in the MAINTAINERS file.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 14:59:11 -05:00
Eric Dumazet
e47eb5dfb2 udp: ipv4: do not use sk_dst_lock from softirq context
Using sk_dst_lock from softirq context is not supported right now.

Instead of adding BH protection everywhere,
udp_sk_rx_dst_set() can instead use xchg(), as suggested
by David.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Fixes: 9750223102 ("udp: ipv4: must add synchronization in udp_sk_rx_dst_set()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 14:50:58 -05:00
Linus Torvalds
0eda4020ae GPIO fixes for the v3.13 development cycle:
- Driver bug fixes for SH PFC, TWL4030, MSM and RCAR.
 
 - Update the MAINTAINERS
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Merge tag 'gpio-v3.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "All but one are long-standing bug fixes that are also tagged for
  stable

   - Driver bug fixes for SH PFC, TWL4030, MSM and RCAR.

   - Update the MAINTAINERS"

* tag 'gpio-v3.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: rcar: Fix level interrupt handling
  gpio: msm: Fix irq mask/unmask by writing bits instead of numbers
  gpio: twl4030: Fix regression for twl gpio LED output
  sh-pfc: Fix PINMUX_GPIO macro
  MAINTAINERS: update GPIO maintainers entry
2013-12-17 11:47:40 -08:00
Linus Torvalds
a5905a9205 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull two Ceph fixes from Sage Weil:
 "One of these is fixing a regression from the d_flags file type patch
  that went into -rc1 that broke instantiation of inodes and dentries
  (we were doing dentries first).  The other is just an off-by-one
  corner case"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  ceph: Avoid data inconsistency due to d-cache aliasing in readpage()
  ceph: initialize inode before instantiating dentry
2013-12-17 11:46:51 -08:00
Jason Wang
50dc875f2e netvsc: don't flush peers notifying work during setting mtu
There's a possible deadlock if we flush the peers notifying work during setting
mtu:

[   22.991149] ======================================================
[   22.991173] [ INFO: possible circular locking dependency detected ]
[   22.991198] 3.10.0-54.0.1.el7.x86_64.debug #1 Not tainted
[   22.991219] -------------------------------------------------------
[   22.991243] ip/974 is trying to acquire lock:
[   22.991261]  ((&(&net_device_ctx->dwork)->work)){+.+.+.}, at: [<ffffffff8108af95>] flush_work+0x5/0x2e0
[   22.991307]
but task is already holding lock:
[   22.991330]  (rtnl_mutex){+.+.+.}, at: [<ffffffff81539deb>] rtnetlink_rcv+0x1b/0x40
[   22.991367]
which lock already depends on the new lock.

[   22.991398]
the existing dependency chain (in reverse order) is:
[   22.991426]
-> #1 (rtnl_mutex){+.+.+.}:
[   22.991449]        [<ffffffff810dfdd9>] __lock_acquire+0xb19/0x1260
[   22.991477]        [<ffffffff810e0d12>] lock_acquire+0xa2/0x1f0
[   22.991501]        [<ffffffff81673659>] mutex_lock_nested+0x89/0x4f0
[   22.991529]        [<ffffffff815392b7>] rtnl_lock+0x17/0x20
[   22.991552]        [<ffffffff815230b2>] netdev_notify_peers+0x12/0x30
[   22.991579]        [<ffffffffa0340212>] netvsc_send_garp+0x22/0x30 [hv_netvsc]
[   22.991610]        [<ffffffff8108d251>] process_one_work+0x211/0x6e0
[   22.991637]        [<ffffffff8108d83b>] worker_thread+0x11b/0x3a0
[   22.991663]        [<ffffffff81095e5d>] kthread+0xed/0x100
[   22.991686]        [<ffffffff81681c6c>] ret_from_fork+0x7c/0xb0
[   22.991715]
-> #0 ((&(&net_device_ctx->dwork)->work)){+.+.+.}:
[   22.991715]        [<ffffffff810de817>] check_prevs_add+0x967/0x970
[   22.991715]        [<ffffffff810dfdd9>] __lock_acquire+0xb19/0x1260
[   22.991715]        [<ffffffff810e0d12>] lock_acquire+0xa2/0x1f0
[   22.991715]        [<ffffffff8108afde>] flush_work+0x4e/0x2e0
[   22.991715]        [<ffffffff8108e1b5>] __cancel_work_timer+0x95/0x130
[   22.991715]        [<ffffffff8108e303>] cancel_delayed_work_sync+0x13/0x20
[   22.991715]        [<ffffffffa03404e4>] netvsc_change_mtu+0x84/0x200 [hv_netvsc]
[   22.991715]        [<ffffffff815233d4>] dev_set_mtu+0x34/0x80
[   22.991715]        [<ffffffff8153bc2a>] do_setlink+0x23a/0xa00
[   22.991715]        [<ffffffff8153d054>] rtnl_newlink+0x394/0x5e0
[   22.991715]        [<ffffffff81539eac>] rtnetlink_rcv_msg+0x9c/0x260
[   22.991715]        [<ffffffff8155cdd9>] netlink_rcv_skb+0xa9/0xc0
[   22.991715]        [<ffffffff81539dfa>] rtnetlink_rcv+0x2a/0x40
[   22.991715]        [<ffffffff8155c41d>] netlink_unicast+0xdd/0x190
[   22.991715]        [<ffffffff8155c807>] netlink_sendmsg+0x337/0x750
[   22.991715]        [<ffffffff8150d219>] sock_sendmsg+0x99/0xd0
[   22.991715]        [<ffffffff8150d63e>] ___sys_sendmsg+0x39e/0x3b0
[   22.991715]        [<ffffffff8150eba2>] __sys_sendmsg+0x42/0x80
[   22.991715]        [<ffffffff8150ebf2>] SyS_sendmsg+0x12/0x20
[   22.991715]        [<ffffffff81681d19>] system_call_fastpath+0x16/0x1b

This is because we hold the rtnl_lock() before ndo_change_mtu() and try to flush
the work in netvsc_change_mtu(), in the mean time, netdev_notify_peers() may be
called from worker and also trying to hold the rtnl_lock. This will lead the
flush won't succeed forever. Solve this by not canceling and flushing the work,
this is safe because the transmission done by NETDEV_NOTIFY_PEERS was
synchronized with the netif_tx_disable() called by netvsc_change_mtu().

Reported-by: Yaju Cao <yacao@redhat.com>
Tested-by: Yaju Cao <yacao@redhat.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 14:45:42 -05:00
Linus Torvalds
4ddebaf42d Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Ben Herrenschmidt:
 "Uli's patch fixes a regression in ptrace caused by a mis-merge of a
  previous LE patch.  The rest are all more endian fixes, all fairly
  trivial, found during testing of 3.13-rc's"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/powernv: Fix OPAL LPC access in Little Endian
  powerpc/powernv: Fix endian issue in opal_xscom_read
  powerpc: Fix endian issues in crash dump code
  powerpc/pseries: Fix endian issues in MSI code
  powerpc/pseries: Fix PCIE link speed endian issue
  powerpc/pseries: Fix endian issues in nvram code
  powerpc/pseries: Fix endian issues in /proc/ppc64/lparcfg
  powerpc: Fix topology core_id endian issue on LE builds
  powerpc: Fix endian issue in setup-common.c
  powerpc: PTRACE_PEEKUSR always returns FPR0
2013-12-17 11:43:46 -08:00
Josh Boyer
f447ef4a56 cpupower: Fix segfault due to incorrect getopt_long arugments
If a user calls 'cpupower set --perf-bias 15', the process will end with
a SIGSEGV in libc because cpupower-set passes a NULL optarg to the atoi
call.  This is because the getopt_long structure currently has all of
the options as having an optional_argument when they really have a
required argument.  We change the structure to use required_argument to
match the short options and it resolves the issue.

This fixes https://bugzilla.redhat.com/show_bug.cgi?id=1000439

Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Thomas Renninger <trenn@suse.de>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-17 11:29:30 -08:00
Marc Kleine-Budde
20fb4eb96f can: peak_usb: fix mem leak in pcan_usb_pro_init()
This patch fixes a memory leak in pcan_usb_pro_init(). In patch

    f14e224 net: can: peak_usb: Do not do dma on the stack

the struct pcan_usb_pro_fwinfo *fi and struct pcan_usb_pro_blinfo *bi were
converted from stack to dynamic allocation va kmalloc(). However the
corresponding kfree() was not introduced.

This patch adds the missing kfree().

Cc: linux-stable <stable@vger.kernel.org> # v3.10
Reported-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-12-17 11:19:33 +01:00
Alexey Khoroshilov
a1c31f1d05 can: ems_usb: fix urb leaks on failure paths
There are a couple failure paths where urb leaks.
Is spare code within ems_usb_start_xmit(),
usb_free_urb() should be used to deallocate urb instead of usb_unanchor_urb().
In ems_usb_start() there is no usb_free_urb() if usb_submit_urb() fails.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Sebastian Haas <dev@sebastianhaas.info>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-12-17 11:19:11 +01:00
Rafał Miłecki
49d45a31b7 drm/edid: add quirk for BPC in Samsung NP700G7A-S01PL notebook
This bug in EDID was exposed by:

commit eccea7920c
Author: Alex Deucher <alexander.deucher@amd.com>
Date:   Mon Mar 26 15:12:54 2012 -0400

    drm/radeon/kms: improve bpc handling (v2)

Which resulted in kind of regression in 3.5. This fixes
https://bugs.freedesktop.org/show_bug.cgi?id=70934

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-17 14:18:16 +10:00
wangweidong
9bd7d20c45 sctp: loading sctp when load sctp_probe
when I modprobe sctp_probe, it failed with "FATAL: ". I found that
sctp should load before sctp_probe register jprobe. So I add a
sctp_setup_jprobe for loading 'sctp' when first failed to register
jprobe, just do this similar to dccp_probe.

v2: add MODULE_SOFTDEP and check of request_module, as suggested by Neil

Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-16 20:04:27 -05:00
Dave Airlie
f1cd659449 Merge branch 'ttm-fixes-3.13' of git://people.freedesktop.org/~thomash/linux into drm-next
A single ttm vm fix.

* 'ttm-fixes-3.13' of git://people.freedesktop.org/~thomash/linux:
  drm/ttm: Fix accesses through vmas with only partial coverage
2013-12-17 09:22:26 +10:00
Thomas Hellstrom
d386735588 drm/ttm: Fix accesses through vmas with only partial coverage
VMAs covering a bo but that didn't start at the same address space offset as
the bo they were mapping were incorrectly generating SEGFAULT errors in
the fault handler.

Reported-by: Joseph Dolinak <kanilo2@yahoo.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Cc: stable@vger.kernel.org
2013-12-16 10:08:35 -08:00
Krzysztof Kozlowski
1b1ccee1e8 mfd: s2mps11: Fix build after regmap field rename in sec-core.c
Fix building of s2mps11 regulator and clock drivers after renaming
regmap field in struct sec_pmic_dev in commit:
 - "mfd/rtc: s5m: Fix register updating by adding regmap for RTC"

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-16 11:30:39 +00:00
Ilia Mirkin
b25b4427e9 drm/nouveau: only runtime suspend by default in optimus configuration
The intent was to only enable it by default for optimus, e.g. see the
runtime_idle callback. The suspend callback may be called directly, e.g.
as a result of nouveau_crtc_set_config.

Reported-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-16 12:43:55 +10:00
Linus Torvalds
319e2e3f63 Linux 3.13-rc4 2013-12-15 12:31:33 -08:00
Matias Bjorling
57053d8c5c null_blk: mem garbage on NUMA systems during init
For NUMA systems, initializing the blk-mq layer and using per node hctx.
We initialize submit queues to 1, while blk-mq nr_hw_queues is
initialized to the number of NUMA nodes.

This makes the null_init_hctx function overwrite memory outside of what
it allocated.  In my case it lead to writing garbage into struct
request_queue's mq_map.

Signed-off-by: Matias Bjorling <m@bjorling.me>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-15 12:17:16 -08:00
Sergey Senozhatsky
e4158f1b10 radeon_pm: fix oops in hwmon_attributes_visible() and radeon_hwmon_show_temp_thresh()
Since commit ec39f64bba ("drm/radeon/dpm: Convert to use
devm_hwmon_register_with_groups") radeon_hwmon_init() is using
hwmon_device_register_with_groups(), which sets `rdev' as a device
private driver_data, while hwmon_attributes_visible() and
radeon_hwmon_show_temp_thresh() are still waiting for `drm_device'.

Fix them by using dev_get_drvdata(), in order to avoid this oops:

  BUG: unable to handle kernel paging request at 0000000000001e28
  IP: [<ffffffffa02ae8b4>] hwmon_attributes_visible+0x18/0x3d [radeon]
  PGD 15057e067 PUD 151a8e067 PMD 0
  Oops: 0000 [#1] PREEMPT SMP
  Call Trace:
    internal_create_group+0x114/0x1d9
    sysfs_create_group+0xe/0x10
    sysfs_create_groups+0x22/0x5f
    device_add+0x34f/0x501
    device_register+0x15/0x18
    hwmon_device_register_with_groups+0xb5/0xed
    radeon_hwmon_init+0x56/0x7c [radeon]
    radeon_pm_init+0x134/0x7e5 [radeon]
    radeon_modeset_init+0x75f/0x8ed [radeon]
    radeon_driver_load_kms+0xc6/0x187 [radeon]
    drm_dev_register+0xf9/0x1b4 [drm]
    drm_get_pci_dev+0x98/0x129 [drm]
    radeon_pci_probe+0xa3/0xac [radeon]
    pci_device_probe+0x6e/0xcf
    driver_probe_device+0x98/0x1c4
    __driver_attach+0x5c/0x7e
    bus_for_each_dev+0x7b/0x85
    driver_attach+0x19/0x1b
    bus_add_driver+0x104/0x1ce
    driver_register+0x89/0xc5
    __pci_register_driver+0x58/0x5b
    drm_pci_init+0x86/0xea [drm]
    radeon_init+0x97/0x1000 [radeon]
    do_one_initcall+0x7f/0x117
    load_module+0x1583/0x1bb4
    SyS_init_module+0xa0/0xaf

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Alexander Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-15 12:16:00 -08:00
Linus Torvalds
4a251dd29c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Revert CHECKSUM_COMPLETE optimization in pskb_trim_rcsum(), I can't
    figure out why it breaks things.

 2) Fix comparison in netfilter ipset's hash_netnet4_data_equal(), it
    was basically doing "x == x", from Dave Jones.

 3) Freescale FEC driver was DMA mapping the wrong number of bytes, from
    Sebastian Siewior.

 4) Blackhole and prohibit routes in ipv6 were not doing the right thing
    because their ->input and ->output methods were not being assigned
    correctly.  Now they behave properly like their ipv4 counterparts.
    From Kamala R.

 5) Several drivers advertise the NETIF_F_FRAGLIST capability, but
    really do not support this feature and will send garbage packets if
    fed fraglist SKBs.  From Eric Dumazet.

 6) Fix long standing user triggerable BUG_ON over loopback in RDS
    protocol stack, from Venkat Venkatsubra.

 7) Several not so common code paths can potentially try to invoke
    packet scheduler actions that might be NULL without checking.  Shore
    things up by either 1) defining a method as mandatory and erroring
    on registration if that method is NULL 2) defininig a method as
    optional and the registration function hooks up a default
    implementation when NULL is seen.  From Jamal Hadi Salim.

 8) Fix fragment detection in xen-natback driver, from Paul Durrant.

 9) Kill dangling enter_memory_pressure method in cg_proto ops, from
    Eric W Biederman.

10) SKBs that traverse namespaces should have their local_df cleared,
    from Hannes Frederic Sowa.

11) IOCB file position is not being updated by macvtap_aio_read() and
    tun_chr_aio_read().  From Zhi Yong Wu.

12) Don't free virtio_net netdev before releasing all of the NAPI
    instances.  From Andrey Vagin.

13) Procfs entry leak in xt_hashlimit, from Sergey Popovich.

14) IPv6 routes that are no cached routes should not count against the
    garbage collection limits.  We had this almost right, but were
    missing handling addrconf generated routes properly.  From Hannes
    Frederic Sowa.

15) fib{4,6}_rule_suppress() have to consider potentially seeing NULL
    route info when they are called, from Stefan Tomanek.

16) TUN and MACVTAP have had truncated packet signalling for some time,
    fix from Jason Wang.

17) Fix use after frrr in __udp4_lib_rcv(), from Eric Dumazet.

18) xen-netback does not interpret the NAPI budget properly for TX work,
    fix from Paul Durrant.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (132 commits)
  igb: Fix for issue where values could be too high for udelay function.
  i40e: fix null dereference
  xen-netback: fix gso_prefix check
  net: make neigh_priv_len in struct net_device 16bit instead of 8bit
  drivers: net: cpsw: fix for cpsw crash when build as modules
  xen-netback: napi: don't prematurely request a tx event
  xen-netback: napi: fix abuse of budget
  sch_tbf: use do_div() for 64-bit divide
  udp: ipv4: must add synchronization in udp_sk_rx_dst_set()
  net:fec: remove duplicate lines in comment about errata ERR006358
  Revert "8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature"
  8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature
  xen-netback: make sure skb linear area covers checksum field
  net: smc91x: Fix device tree based configuration so it's usable
  udp: ipv4: fix potential use after free in udp_v4_early_demux()
  macvtap: signal truncated packets
  tun: unbreak truncated packet signalling
  net: sched: htb: fix the calculation of quantum
  net: sched: tbf: fix the calculation of max_size
  micrel: add support for KSZ8041RNLI
  ...
2013-12-15 11:56:47 -08:00
Linus Torvalds
908bfda754 Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "This is a pretty small batch:

  The biggest single change is to stop using EFI time services on 32-bit
  platforms.  This matches our current behavior on 64-bit platforms as
  we already had ruled them out there as being too unreliable.  Turns
  out that affects 32-bit platforms, too.

  One NULL pointer fix for SGI UV.

  Two minor build fixes, one of which only affects icc and the other
  which affects icc and future versions or nonstandard default settings
  of gcc"

* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, efi: Don't use (U)EFI time services on 32 bit
  x86, build, icc: Remove uninitialized_var() from compiler-intel.h
  x86/UV: Fix NULL pointer dereference in uv_flush_tlb_others() if the 'nobau' boot option is used
  x86, build: Pass in additional -mno-mmx, -mno-sse options
2013-12-15 11:52:47 -08:00
Linus Torvalds
9199c4caa1 PCI updates for v3.13:
PCI device hotplug
     - Move device_del() from pci_stop_dev() to pci_destroy_dev() (Rafael J. Wysocki)
 
   Host bridge drivers
     - Update maintainers for DesignWare, i.MX6, Armada, R-Car (Bjorn Helgaas)
     - mvebu: Return 'unsupported' for Interrupt Line and Interrupt Pin (Jason Gunthorpe)
 
   Miscellaneous
     - Avoid unnecessary CPU switch when calling .probe() (Alexander Duyck)
     - Revert "workqueue: allow work_on_cpu() to be called recursively" (Bjorn Helgaas)
     - Disable Bus Master only on kexec reboot (Khalid Aziz)
     - Omit PCI ID macro strings to shorten quirk names for LTO (Michal Marek)
 
  MAINTAINERS                  | 33 +++++++++++++++++++++++++++++++++
  drivers/pci/host/pci-mvebu.c |  5 +++++
  drivers/pci/pci-driver.c     | 38 ++++++++++++++++++++++++++++++--------
  drivers/pci/remove.c         |  4 +++-
  include/linux/kexec.h        |  3 +++
  include/linux/pci.h          | 30 +++++++++++++++---------------
  kernel/kexec.c               |  4 ++++
  kernel/workqueue.c           | 32 ++++++++++----------------------
  8 files changed, 103 insertions(+), 46 deletions(-)
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Merge tag 'pci-v3.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "PCI device hotplug
    - Move device_del() from pci_stop_dev() to pci_destroy_dev() (Rafael
      Wysocki)

  Host bridge drivers
    - Update maintainers for DesignWare, i.MX6, Armada, R-Car (Bjorn
      Helgaas)
    - mvebu: Return 'unsupported' for Interrupt Line and Interrupt Pin
      (Jason Gunthorpe)

  Miscellaneous
    - Avoid unnecessary CPU switch when calling .probe() (Alexander
      Duyck)
    - Revert "workqueue: allow work_on_cpu() to be called recursively"
      (Bjorn Helgaas)
    - Disable Bus Master only on kexec reboot (Khalid Aziz)
    - Omit PCI ID macro strings to shorten quirk names for LTO (Michal
      Marek)"

* tag 'pci-v3.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  MAINTAINERS: Add DesignWare, i.MX6, Armada, R-Car PCI host maintainers
  PCI: Disable Bus Master only on kexec reboot
  PCI: mvebu: Return 'unsupported' for Interrupt Line and Interrupt Pin
  PCI: Omit PCI ID macro strings to shorten quirk names
  PCI: Move device_del() from pci_stop_dev() to pci_destroy_dev()
  Revert "workqueue: allow work_on_cpu() to be called recursively"
  PCI: Avoid unnecessary CPU switch when calling driver .probe() method
2013-12-15 11:45:27 -08:00
Linus Torvalds
b5745c5962 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull SELinux fixes from James Morris.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  selinux: process labeled IPsec TCP SYN-ACK packets properly in selinux_ip_postroute()
  selinux: look for IPsec labels on both inbound and outbound packets
  selinux: handle TCP SYN-ACK packets correctly in selinux_ip_postroute()
  selinux: handle TCP SYN-ACK packets correctly in selinux_ip_output()
  selinux: fix possible memory leak
2013-12-15 11:28:02 -08:00
Linus Torvalds
29b1deb2a4 Revert "selinux: consider filesystem subtype in policies"
This reverts commit 102aefdda4.

Tom London reports that it causes sync() to hang on Fedora rawhide:

  https://bugzilla.redhat.com/show_bug.cgi?id=1033965

and Josh Boyer bisected it down to this commit.  Reverting the commit in
the rawhide kernel fixes the problem.

Eric Paris root-caused it to incorrect subtype matching in that commit
breaking fuse, and has a tentative patch, but by now we're better off
retrying this in 3.14 rather than playing with it any more.

Reported-by: Tom London <selinux@gmail.com>
Bisected-by: Josh Boyer <jwboyer@fedoraproject.org>
Acked-by: Eric Paris <eparis@redhat.com>
Cc: James Morris <jmorris@namei.org>
Cc: Anand Avati <avati@redhat.com>
Cc: Paul Moore <paul@paul-moore.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-15 11:17:45 -08:00