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11 years agoforcedeth: Do a dma_mapping_error check after skb_frag_dma_map
Neil Horman [Mon, 1 Apr 2013 04:31:58 +0000 (04:31 +0000)]
forcedeth: Do a dma_mapping_error check after skb_frag_dma_map

This backtrace was recently reported on a 3.9 kernel:

Actual results: from syslog /var/log/messsages:
kernel: [17539.340285] ------------[ cut here ]------------
kernel: [17539.341012] WARNING: at lib/dma-debug.c:937 check_unmap+0x493/0x960()
kernel: [17539.341012] Hardware name: MS-7125
kernel: [17539.341012] forcedeth 0000:00:0a.0: DMA-API: device driver failed to
check map error[device address=0x0000000013c88000] [size=544 bytes] [mapped as
page]
kernel: [17539.341012] Modules linked in: fuse ebtable_nat ipt_MASQUERADE
nf_conntrack_netbios_ns nf_conntrack_broadcast ip6table_nat nf_nat_ipv6
ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat
nf_nat_ipv4 nf_nat iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack
nf_conntrack bnep bluetooth rfkill ebtable_filter ebtables ip6table_filter
ip6_tables snd_hda_codec_hdmi snd_cmipci snd_mpu401_uart snd_hda_intel
snd_intel8x0 snd_opl3_lib snd_ac97_codec gameport snd_hda_codec snd_rawmidi
ac97_bus snd_hwdep snd_seq snd_seq_device snd_pcm snd_page_alloc snd_timer snd
k8temp soundcore serio_raw i2c_nforce2 forcedeth ata_generic pata_acpi nouveau
video mxm_wmi wmi i2c_algo_bit drm_kms_helper ttm drm i2c_core sata_sil pata_amd
sata_nv uinput
kernel: [17539.341012] Pid: 17340, comm: sshd Not tainted
3.9.0-0.rc4.git0.1.fc19.i686.PAE #1
kernel: [17539.341012] Call Trace:
kernel: [17539.341012]  [<c045573c>] warn_slowpath_common+0x6c/0xa0
kernel: [17539.341012]  [<c0701953>] ? check_unmap+0x493/0x960
kernel: [17539.341012]  [<c0701953>] ? check_unmap+0x493/0x960
kernel: [17539.341012]  [<c04557a3>] warn_slowpath_fmt+0x33/0x40
kernel: [17539.341012]  [<c0701953>] check_unmap+0x493/0x960
kernel: [17539.341012]  [<c049238f>] ? sched_clock_cpu+0xdf/0x150
kernel: [17539.341012]  [<c0701e87>] debug_dma_unmap_page+0x67/0x70
kernel: [17539.341012]  [<f7eae8f2>] nv_unmap_txskb.isra.32+0x92/0x100

Its pretty plainly the result of an skb fragment getting unmapped without having
its initial mapping operation checked for errors.  This patch corrects that.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoISDN:divert: beautify code: useless 'break', 'return (0)', additional comments.
Chen Gang [Tue, 2 Apr 2013 01:37:56 +0000 (09:37 +0800)]
ISDN:divert: beautify code: useless 'break', 'return (0)', additional comments.

  delete useless 'break' after 'return'.
  let 'return 0' instead of 'return (0)'
  also give a comment for 'break' to let readers notice it.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Bump up the version to 5.2.40
Rajesh Borundia [Tue, 2 Apr 2013 05:34:43 +0000 (05:34 +0000)]
qlcnic: Bump up the version to 5.2.40

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Fix sparse warnings.
Rajesh Borundia [Tue, 2 Apr 2013 05:34:42 +0000 (05:34 +0000)]
qlcnic: Fix sparse warnings.

warning: 'pf_info.max_tx_ques' may be used uninitialized in this function
[-Wmaybe-uninitialized]

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Fix NULL dereference in error path.
Rajesh Borundia [Tue, 2 Apr 2013 05:34:41 +0000 (05:34 +0000)]
qlcnic: Fix NULL dereference in error path.

o Fix for smatch tool reported error
   drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c:2029
   qlcnic_probe() error: potential NULL dereference 'adapter'.
o While returning from an error path in probe, adapter is not
  initialized. So do not access adapter in cleanup path.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Fix potential NULL dereference
Rajesh Borundia [Tue, 2 Apr 2013 05:34:40 +0000 (05:34 +0000)]
qlcnic: Fix potential NULL dereference

[net-next:master 301/302] drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c:563
 qlcnic_set_multi() error: potential null dereference 'cur'. (kzalloc returns null)

o Break out of the loop after memory allocation failure. Program all the
  MAC addresses that were cached in the return path.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agotcp: Remove dead sysctl_tcp_cookie_size declaration
Neal Cardwell [Tue, 2 Apr 2013 17:13:07 +0000 (13:13 -0400)]
tcp: Remove dead sysctl_tcp_cookie_size declaration

Remove a declaration left over from the TCPCT-ectomy. This sysctl is
no longer referenced anywhere since 1a2c6181c4 ("tcp: Remove TCPCT").

Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agobridge: remove a redundant synchronize_net()
Eric Dumazet [Tue, 2 Apr 2013 05:45:00 +0000 (05:45 +0000)]
bridge: remove a redundant synchronize_net()

commit 00cfec37484761 (net: add a synchronize_net() in
netdev_rx_handler_unregister())
allows us to remove the synchronized_net() call from del_nbp()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Veaceslav Falico <vfalico@redhat.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
David S. Miller [Mon, 1 Apr 2013 17:36:50 +0000 (13:36 -0400)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Conflicts:
net/mac80211/sta_info.c
net/wireless/core.h

Two minor conflicts in wireless.  Overlapping additions of extern
declarations in net/wireless/core.h and a bug fix overlapping with
the addition of a boolean parameter to __ieee80211_key_free().

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux...
Linus Torvalds [Mon, 1 Apr 2013 15:17:09 +0000 (08:17 -0700)]
Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

Pull arch/tile fix from Chris Metcalf:
 "This change allows newer Tilera boot tools to work correctly with
  current (and stable) kernels by using the right filename to get the
  initramfs from the Tilera hypervisor filesystem."

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tile: expect new initramfs name from hypervisor file system

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Mon, 1 Apr 2013 15:06:30 +0000 (08:06 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) sadb_msg prepared for IPSEC userspace forgets to initialize the
    satype field, fix from Nicolas Dichtel.

 2) Fix mac80211 synchronization during station removal, from Johannes
    Berg.

 3) Fix IPSEC sequence number notifications when they wrap, from Steffen
    Klassert.

 4) Fix cfg80211 wdev tracing crashes when add_virtual_intf() returns an
    error pointer, from Johannes Berg.

 5) In mac80211, don't call into the channel context code with the
    interface list mutex held.  From Johannes Berg.

 6) In mac80211, if we don't actually associate, do not restart the STA
    timer, otherwise we can crash.  From Ben Greear.

 7) Missing dma_mapping_error() check in e1000, ixgb, and e1000e.  From
    Christoph Paasch.

 8) Fix sja1000 driver defines to not conflict with SH port, from Marc
    Kleine-Budde.

 9) Don't call il4965_rs_use_green with a NULL station, from Colin Ian
    King.

10) Suspend/Resume in the FEC driver fail because the buffer descriptors
    are not initialized at all the moments in which they should.  Fix
    from Frank Li.

11) cpsw and davinci_emac drivers both use the wrong interface to
    restart a stopped TX queue.  Use netif_wake_queue not
    netif_start_queue, the latter is for initialization/bringup not
    active management of the queue.  From Mugunthan V N.

12) Fix regression in rate calculations done by
    psched_ratecfg_precompute(), missing u64 type promotion.  From
    Sergey Popovich.

13) Fix length overflow in tg3 VPD parsing, from Kees Cook.

14) AOE driver fails to allocate enough headroom, resulting in crashes.
    Fix from Eric Dumazet.

15) RX overflow happens too quickly in sky2 driver because pause packet
    thresholds are not programmed correctly.  From Mirko Lindner.

16) Bonding driver manages arp_interval and miimon settings incorrectly,
    disabling one unintentionally disables both.  Fix from Nikolay
    Aleksandrov.

17) smsc75xx drivers don't program the RX mac properly for jumbo frames.
    Fix from Steve Glendinning.

18) Fix off-by-one in Codel packet scheduler.  From Vijay Subramanian.

19) Fix packet corruption in atl1c by disabling MSI support, from Hannes
    Frederic Sowa.

20) netdev_rx_handler_unregister() needs a synchronize_net() to fix
    crashes in bonding driver unload stress tests.  From Eric Dumazet.

21) rxlen field of ks8851 RX packet descriptors not interpreted
    correctly (it is 12 bits not 16 bits, so needs to be masked after
    shifting the 32-bit value down 16 bits).  Fix from Max Nekludov.

22) Fix missed RX/TX enable in sh_eth driver due to mishandling of link
    change indications.  From Sergei Shtylyov.

23) Fix crashes during spurious ECI interrupts in sh_eth driver, also
    from Sergei Shtylyov.

24) dm9000 driver initialization is done wrong for revision B devices
    with DSP PHY, from Joseph CHANG.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (53 commits)
  DM9000B: driver initialization upgrade
  sh_eth: make 'link' field of 'struct sh_eth_private' *int*
  sh_eth: workaround for spurious ECI interrupt
  sh_eth: fix handling of no LINK signal
  ks8851: Fix interpretation of rxlen field.
  net: add a synchronize_net() in netdev_rx_handler_unregister()
  MAINTAINERS: Update netxen_nic maintainers list
  atl1e: drop pci-msi support because of packet corruption
  net: fq_codel: Fix off-by-one error
  net: calxedaxgmac: Wake-on-LAN fixes
  net: calxedaxgmac: fix rx ring handling when OOM
  net: core: Remove redundant call to 'nf_reset' in 'dev_forward_skb'
  smsc75xx: fix jumbo frame support
  net: fix the use of this_cpu_ptr
  bonding: fix disabling of arp_interval and miimon
  ipv6: don't accept node local multicast traffic from the wire
  sky2: Threshold for Pause Packet is set wrong
  sky2: Receive Overflows not counted
  aoe: reserve enough headroom on skbs
  line up comment for ndo_bridge_getlink
  ...

11 years agonet: add option to enable error queue packets waking select
Keller, Jacob E [Thu, 28 Mar 2013 11:19:25 +0000 (11:19 +0000)]
net: add option to enable error queue packets waking select

Currently, when a socket receives something on the error queue it only wakes up
the socket on select if it is in the "read" list, that is the socket has
something to read. It is useful also to wake the socket if it is in the error
list, which would enable software to wait on error queue packets without waking
up for regular data on the socket. The main use case is for receiving
timestamped transmit packets which return the timestamp to the socket via the
error queue. This enables an application to select on the socket for the error
queue only instead of for the regular traffic.

-v2-
* Added the SO_SELECT_ERR_QUEUE socket option to every architechture specific file
* Modified every socket poll function that checks error queue

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jeffrey Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Matthew Vick <matthew.vick@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoDM9000B: driver initialization upgrade
Joseph CHANG [Thu, 28 Mar 2013 23:13:42 +0000 (23:13 +0000)]
DM9000B: driver initialization upgrade

Fix bug for DM9000 revision B which contain a DSP PHY

DM9000B use DSP PHY instead previouse DM9000 revisions' analog PHY,
So need extra change in initialization, For
explicity PHY Reset and PHY init parameter, and
first DM9000_NCR reset need NCR_MAC_LBK bit by dm9000_probe().

Following DM9000_NCR reset cause by dm9000_open() clear the
NCR_MAC_LBK bit.

Without this fix, Power-up FIFO pointers error happen around 2%
rate among Davicom's customers' boards. With this fix, All above
cases can be solved.

Signed-off-by: Joseph CHANG <josright123@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosh_eth: make 'link' field of 'struct sh_eth_private' *int*
Sergei Shtylyov [Sun, 31 Mar 2013 10:11:04 +0000 (10:11 +0000)]
sh_eth: make 'link' field of 'struct sh_eth_private' *int*

The 'link' field of 'struct sh_eth_private' has type 'enum phy_state' while the
'link' field of 'struct phy_device' is merely *int* (having values 0 and 1) and
the former field gets assigned from the latter. Make the field match, getting
rid of incorrectly used PHY_DOWN value in assignments/comparisons.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosh_eth: workaround for spurious ECI interrupt
Sergei Shtylyov [Sun, 31 Mar 2013 09:54:20 +0000 (09:54 +0000)]
sh_eth: workaround for spurious ECI interrupt

At least on Renesas R8A7778, EESR.ECI interrupt seems to fire regardless of its
mask in EESIPR register. I can 100% reproduce it with the following scenario:
target is booted with 'ip=on' option, and so IP-Config opens SoC Ether device
but doesn't get a proper reply and then succeeds with on-board SMC chip; then
I login and try to bring up the SoC Ether device with 'ifconfig', and I get
an ECI interrupt once request_irq() is called by sh_eth_open() (while interrupt
mask in EESIPR register is all 0), if that interrupt is accompanied by a pending
EESR.FRC (frame receive completion) interrupt, I get kernel oops in sh_eth_rx()
because sh_eth_ring_init() hasn't been called yet!

The solution I worked out is the following: in sh_eth_interrupt(), mask the
interrupt status from EESR register with the interrupt mask from EESIPR register
in order not to handle the disabled interrupts -- but forcing EESIPR.M_ECI bit
in this mask set because we always need to fully handle EESR.ECI interrupt in
sh_eth_error() in order to quench it (as it doesn't get cleared by just writing
1 to the this bit as all the other interrupts).

While at it, remove unneeded initializer for 'intr_status' variable and give it
*unsigned long* type, matching the type of sh_eth_read()'s result; fix comment.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Max Filippov <max.filippov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosh_eth: fix handling of no LINK signal
Sergei Shtylyov [Sun, 31 Mar 2013 09:50:07 +0000 (09:50 +0000)]
sh_eth: fix handling of no LINK signal

The code handling the absent LINK signal (or the absent PSR register -- which
reflects the state of this signal) is quite naive and has probably never really
worked.  It's probably enough to say that this code is executed only on the LINK
change interrupt (sic!) but even if we actually have the signal and choose to
ignore it (it might be connected to PHY's link/activity LED output as on the
Renesas BOCK-W board), sh_eth_adjust_link() on which this code relies to update
'mdp->link' gets executed later than the LINK change interrupt where it is
checked, and so RX/TX never get enabled via ECMR register.

So, ignore the LINK changed interrupt iff LINK signal is absent (or just chosen
not to be used) or PSR register is absent, and enable/disable RX/TX directly in
sh_eth_adjust_link() in this case.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoLinux 3.9-rc5 v3.9-rc5
Linus Torvalds [Sun, 31 Mar 2013 22:12:43 +0000 (15:12 -0700)]
Linux 3.9-rc5

11 years agoMerge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Sun, 31 Mar 2013 18:41:47 +0000 (11:41 -0700)]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma

Pull slave-dmaengine fixes from Vinod Koul:
 "Two fixes for slave-dmaengine.

  The first one is for making slave_id value correct for dw_dmac and
  the other one fixes the endieness in DT parsing"

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  dw_dmac: adjust slave_id accordingly to request line base
  dmaengine: dw_dma: fix endianess for DT xlate function

11 years agoMerge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Sun, 31 Mar 2013 18:40:33 +0000 (11:40 -0700)]
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 "For a some fixes for Kernel 3.9:
   - subsystem build fix when VIDEO_DEV=y, VIDEO_V4L2=m and I2C=m
   - compilation fix for arm multiarch preventing IR_RX51 to be selected
   - regression fix at bttv crop logic
   - s5p-mfc/m5mols/exynos: a few fixes for cameras on exynos hardware"

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] [REGRESSION] bt8xx: Fix too large height in cropcap
  [media] fix compilation with both V4L2 and I2C as 'm'
  [media] m5mols: Fix bug in stream on handler
  [media] s5p-fimc: Do not attempt to disable not enabled media pipeline
  [media] s5p-mfc: Fix encoder control 15 issue
  [media] s5p-mfc: Fix frame skip bug
  [media] s5p-fimc: send valid m2m ctx to fimc_m2m_job_finish
  [media] exynos-gsc: send valid m2m ctx to gsc_m2m_job_finish
  [media] fimc-lite: Fix the variable type to avoid possible crash
  [media] fimc-lite: Initialize 'step' field in fimc_lite_ctrl structure
  [media] ir: IR_RX51 only works on OMAP2

11 years agoMerge tag 'for-linus-20130331' of git://git.kernel.dk/linux-block
Linus Torvalds [Sun, 31 Mar 2013 18:38:59 +0000 (11:38 -0700)]
Merge tag 'for-linus-20130331' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Alright, this time from 10K up in the air.

  Collection of fixes that have been queued up since the merge window
  opened, hence postponed until later in the cycle.  The pull request
  contains:

   - A bunch of fixes for the xen blk front/back driver.

   - A round of fixes for the new IBM RamSan driver, fixing various
     nasty issues.

   - Fixes for multiple drives from Wei Yongjun, bad handling of return
     values and wrong pointer math.

   - A fix for loop properly killing partitions when being detached."

* tag 'for-linus-20130331' of git://git.kernel.dk/linux-block: (25 commits)
  mg_disk: fix error return code in mg_probe()
  rsxx: remove unused variable
  rsxx: enable error return of rsxx_eeh_save_issued_dmas()
  block: removes dynamic allocation on stack
  Block: blk-flush: Fixed indent code style
  cciss: fix invalid use of sizeof in cciss_find_cfgtables()
  loop: cleanup partitions when detaching loop device
  loop: fix error return code in loop_add()
  mtip32xx: fix error return code in mtip_pci_probe()
  xen-blkfront: remove frame list from blk_shadow
  xen-blkfront: pre-allocate pages for requests
  xen-blkback: don't store dev_bus_addr
  xen-blkfront: switch from llist to list
  xen-blkback: fix foreach_grant_safe to handle empty lists
  xen-blkfront: replace kmalloc and then memcpy with kmemdup
  xen-blkback: fix dispatch_rw_block_io() error path
  rsxx: fix missing unlock on error return in rsxx_eeh_remap_dmas()
  Adding in EEH support to the IBM FlashSystem 70/80 device driver
  block: IBM RamSan 70/80 error message bug fix.
  block: IBM RamSan 70/80 branding changes.
  ...

11 years agoRevert "lockdep: check that no locks held at freeze time"
Paul Walmsley [Sun, 31 Mar 2013 00:04:40 +0000 (00:04 +0000)]
Revert "lockdep: check that no locks held at freeze time"

This reverts commit 6aa9707099c4b25700940eb3d016f16c4434360d.

Commit 6aa9707099c4 ("lockdep: check that no locks held at freeze time")
causes problems with NFS root filesystems.  The failures were noticed on
OMAP2 and 3 boards during kernel init:

  [ BUG: swapper/0/1 still has locks held! ]
  3.9.0-rc3-00344-ga937536 #1 Not tainted
  -------------------------------------
  1 lock held by swapper/0/1:
   #0:  (&type->s_umount_key#13/1){+.+.+.}, at: [<c011e84c>] sget+0x248/0x574

  stack backtrace:
    rpc_wait_bit_killable
    __wait_on_bit
    out_of_line_wait_on_bit
    __rpc_execute
    rpc_run_task
    rpc_call_sync
    nfs_proc_get_root
    nfs_get_root
    nfs_fs_mount_common
    nfs_try_mount
    nfs_fs_mount
    mount_fs
    vfs_kern_mount
    do_mount
    sys_mount
    do_mount_root
    mount_root
    prepare_namespace
    kernel_init_freeable
    kernel_init

Although the rootfs mounts, the system is unstable.  Here's a transcript
from a PM test:

  http://www.pwsan.com/omap/testlogs/test_v3.9-rc3/20130317194234/pm/37xxevm/37xxevm_log.txt

Here's what the test log should look like:

  http://www.pwsan.com/omap/testlogs/test_v3.8/20130218214403/pm/37xxevm/37xxevm_log.txt

Mailing list discussion is here:

  http://lkml.org/lkml/2013/3/4/221

Deal with this for v3.9 by reverting the problem commit, until folks can
figure out the right long-term course of action.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Mandeep Singh Baines <msb@chromium.org>
Cc: Jeff Layton <jlayton@redhat.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: <maciej.rutecki@gmail.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ben Chan <benchan@chromium.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agodoc: packet: add minimal TPACKET_V3 example code
Daniel Borkmann [Fri, 29 Mar 2013 05:36:29 +0000 (05:36 +0000)]
doc: packet: add minimal TPACKET_V3 example code

Lost in space for a long time, but it finally came back to us from
some ancient code tombs. This patch adds a minimal runnable example
of Linux' packet mmap(2) from Chetan Loke's TPACKET_V3. Special
thanks to David S. Miller, and also Eric Leblond and Victor Julien!

Cc: Eric Leblond <eric@regit.org>
Cc: Victor Julien <victor@inliniac.net>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agomacvlan: use the right RCU api
Eric Dumazet [Sat, 30 Mar 2013 10:08:44 +0000 (10:08 +0000)]
macvlan: use the right RCU api

Make sure we use proper API to fetch dev->rx_handler_data,
instead of ugly casts.

Rename macvlan_port_get() to macvlan_port_get_rtnl() to document fact
that we hold RTNL when needed, with lockdep support.

This removes sparse warnings as well (CONFIG_SPARSE_RCU_POINTER=y)

CHECK   drivers/net/macvlan.c
drivers/net/macvlan.c:706:37: warning: cast removes address space of expression
drivers/net/macvlan.c:775:16: warning: cast removes address space of expression
drivers/net/macvlan.c:924:16: warning: cast removes address space of expression

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: reorder some fields of net_device
Eric Dumazet [Sat, 30 Mar 2013 06:31:03 +0000 (06:31 +0000)]
net: reorder some fields of net_device

As time passed, some fields were added in net_device, and not
at sensible offsets.

Lets reorder some fields to reduce number of cache lines in RX path.
Fields not used in data path should be moved out of this critical cache
line.

In particular, move broadcast[] to the end of the rx section,
as it is less used, and ethernet uses only the beginning of the 32bytes
field.

Before patch :

offsetof(struct net_device,dev_addr)=0x258
offsetof(struct net_device,rx_handler)=0x2b8
offsetof(struct net_device,ingress_queue)=0x2c8
offsetof(struct net_device,broadcast)=0x278

After :

offsetof(struct net_device,dev_addr)=0x280
offsetof(struct net_device,rx_handler)=0x298
offsetof(struct net_device,ingress_queue)=0x2a8
offsetof(struct net_device,broadcast)=0x2b0

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocdc_ncm: return -ENOMEM if kzalloc fails
Devendra Naga [Fri, 29 Mar 2013 23:03:22 +0000 (23:03 +0000)]
cdc_ncm: return -ENOMEM if kzalloc fails

return -ENOMEM instead if kzalloc of cdc_ncm_ctx structure is failed.

and also remove the comparision of ctx structure with NULL and make
it as !ctx.

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoip_gre: don't overwrite iflink during net_dev init
Antonio Quartulli [Sat, 30 Mar 2013 07:07:37 +0000 (07:07 +0000)]
ip_gre: don't overwrite iflink during net_dev init

iflink is currently set to 0 in __gre_tunnel_init(). This
function is invoked in gre_tap_init() and
ipgre_tunnel_init() which are both used to initialise the
ndo_init field of the respective net_device_ops structs
(ipgre.. and gre_tap..) used by GRE interfaces.

However, in netdevice_register() iflink is first set to -1,
then ndo_init is invoked and then iflink is assigned to a
proper value if and only if it still was -1.

Assigning 0 to iflink in ndo_init is therefore first
preventing netdev_register() to correctly assign it a proper
value and then breaking iflink at all since 0 has not
correct meaning.

Fix this by removing the iflink assignment in
__gre_tunnel_init().

Introduced by c54419321455631079c7d6e60bc732dd0c5914c5
("GRE: Refactor GRE tunneling code.")

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Pravin B Shelar <pshelar@nicira.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Linus Torvalds [Sat, 30 Mar 2013 20:13:05 +0000 (13:13 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

Pull SCSI target fixes from Nicholas Bellinger:
 "This includes the bug-fix for a >= v3.8-rc1 regression specific to
  iscsi-target persistent reservation conflict handling (CC'ed to
  stable), and a tcm_vhost patch to drop VIRTIO_RING_F_EVENT_IDX usage
  so that in-flight qemu vhost-scsi-pci device code can detect the
  proper vhost feature bits.

  Also, there are two more tcm_vhost patches still being discussed by
  MST and Asias for v3.9 that will be required for the in-flight qemu
  vhost-scsi-pci device patch to function properly, and that should
  (hopefully) be the last target fixes for this round."

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target: Fix RESERVATION_CONFLICT status regression for iscsi-target special case
  tcm_vhost: Avoid VIRTIO_RING_F_EVENT_IDX feature bit

11 years agoinclude/linux: printk is needed in filter.h when CONFIG_BPF_JIT is defined
Chen Gang [Thu, 28 Mar 2013 15:24:53 +0000 (15:24 +0000)]
include/linux: printk is needed in filter.h when CONFIG_BPF_JIT is defined

for make V=1 EXTRA_CFLAGS=-W ARCH=arm allmodconfig
    printk is need when CONFIG_BPF_JIT is defined
    or it will report pr_err and print_hex_dump are implicit declaration

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agodw_dmac: adjust slave_id accordingly to request line base
Andy Shevchenko [Wed, 20 Feb 2013 11:52:17 +0000 (13:52 +0200)]
dw_dmac: adjust slave_id accordingly to request line base

On some hardware configurations we have got the request line with the offset.
The patch introduces convert_slave_id() helper for that cases. The request line
base is came from the driver data provided by the platform_device_id table.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodmaengine: dw_dma: fix endianess for DT xlate function
Arnd Bergmann [Sun, 3 Mar 2013 20:51:28 +0000 (20:51 +0000)]
dmaengine: dw_dma: fix endianess for DT xlate function

As reported by Wu Fengguang's build robot tracking sparse warnings, the
dma_spec arguments in the dw_dma_xlate are already byte swapped on
little-endian platforms and must not get swapped again. This code is
currently not used anywhere, but will be used in Linux 3.10 when the
ARM SPEAr platform starts using the generic DMA DT binding.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agoPNP: List Rafael Wysocki as a maintainer
Rafael J. Wysocki [Fri, 29 Mar 2013 21:59:53 +0000 (22:59 +0100)]
PNP: List Rafael Wysocki as a maintainer

The Adam Belay's e-mail address in MAINTAINERS under PNP SUPPORT
is not valid any more and I started to maintain that code in the
meantime as a matter of fact, so list myself as a maintainer of it
along with Bjorn and remove the Adam's entry from it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoqlcnic: Bump up the version to 5.2.39
Rajesh Borundia [Fri, 29 Mar 2013 05:46:39 +0000 (05:46 +0000)]
qlcnic: Bump up the version to 5.2.39

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Support atomic commands
Rajesh Borundia [Fri, 29 Mar 2013 05:46:38 +0000 (05:46 +0000)]
qlcnic: Support atomic commands

o VFs might get scheduled out after sending a command to a PF
  and scheduled in after receiving a response. Implement a
  worker thread to handle atomic commands.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Support VF-PF communication channel commands.
Rajesh Borundia [Fri, 29 Mar 2013 05:46:37 +0000 (05:46 +0000)]
qlcnic: Support VF-PF communication channel commands.

o Add support for commands from VF to PF.
o PF validates the commands sent by the VF before sending
  it to adapter.
o vPort is a container of resources. PF creates vPort
  for VFs and attach resources to it. vPort is
  transparent to the VF.
o Separate 83xx TX and RX hardware resource cleanup from 82xx.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: VF-PF communication channel implementation
Rajesh Borundia [Fri, 29 Mar 2013 05:46:36 +0000 (05:46 +0000)]
qlcnic: VF-PF communication channel implementation

o Adapter provides communication channel between VF and PF.
  Any control commands from the VF driver are sent to the PF driver
  through this communication channel. PF driver validates the
  commands before sending them to the adapter. Similarly PF driver
  forwards any control command responses  to the VF driver
  through this communication channel.  Adapter sends message pending
  event to VF or PF when there is an outstanding response or a command
  for VF or PF respectively. When a command or a response is sent over
  a channel VF or PF cannot send another command or a response
  until adapter sends a channel free event. Adapter allocates 1K area to
  VF and  PF each for this communication.
o Commands and  responses are encapsulated in a header. Header determines
  sequence id, number of fragments, fragment number etc.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Use shared interrupt vector for Tx and Rx
Rajesh Borundia [Fri, 29 Mar 2013 05:46:35 +0000 (05:46 +0000)]
qlcnic: Use shared interrupt vector for Tx and Rx

o VF will use shared MSI-X interrupt vector for Tx and Rx.
o When QLCNIC_INTR_SHARED flag is set Tx and Rx will
  share MSI-X interrupt vector. Tx will use a separate
  MSI-X interrupt vector from Rx otherwise.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: SR-IOV VF probe
Rajesh Borundia [Fri, 29 Mar 2013 05:46:34 +0000 (05:46 +0000)]
qlcnic: SR-IOV VF probe

o Add PCI device entry for VF.
o Add HW operations for VF.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Support SR-IOV enable and disable
Rajesh Borundia [Fri, 29 Mar 2013 05:46:33 +0000 (05:46 +0000)]
qlcnic: Support SR-IOV enable and disable

o Add QLCNIC_SRIOV to Kconfig.
o Provide PCI sysfs hooks to enable and disable SR-IOV.
o Allow enabling only when CONFIG_QLCNIC_SRIOV is defined.
o qlcnic_sriov_pf.c has all the PF related SR-IOV
  functionality.
o qlcnic_sriov_common.c has VF functionality and SR-IOV
  functionality which is common between VF and PF.
o qlcnic_sriov.h is a common header file for SR-IOV defines.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoks8851: Fix interpretation of rxlen field.
Max.Nekludov@us.elster.com [Fri, 29 Mar 2013 05:27:36 +0000 (05:27 +0000)]
ks8851: Fix interpretation of rxlen field.

According to the Datasheet (page 52):
15-12 Reserved
11-0 RXBC Receive Byte Count
This field indicates the present received frame byte size.

The code has a bug:
                 rxh = ks8851_rdreg32(ks, KS_RXFHSR);
                 rxstat = rxh & 0xffff;
                 rxlen = rxh >> 16; // BUG!!! 0xFFF mask should be applied

Signed-off-by: Max Nekludov <Max.Nekludov@us.elster.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocirrus: cs89x0: remove two obsolete Kconfig macros
Paul Bolle [Fri, 29 Mar 2013 00:51:30 +0000 (00:51 +0000)]
cirrus: cs89x0: remove two obsolete Kconfig macros

The CONFIG_ARCH_IXDP2X01 and CONFIG_MACH_IXDP2351 Kconfig macros are
unused since the ixp23xx and ixp2000 platforms were removed in v3.5. So
remove the last code still depending on these macros. And since
CS89x0_NONISA_IRQ was only set if either of these two macros was defined
we can also remove that macro and the code depending on it.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: add a synchronize_net() in netdev_rx_handler_unregister()
Eric Dumazet [Fri, 29 Mar 2013 03:01:22 +0000 (03:01 +0000)]
net: add a synchronize_net() in netdev_rx_handler_unregister()

commit 35d48903e97819 (bonding: fix rx_handler locking) added a race
in bonding driver, reported by Steven Rostedt who did a very good
diagnosis :

<quoting Steven>

I'm currently debugging a crash in an old 3.0-rt kernel that one of our
customers is seeing. The bug happens with a stress test that loads and
unloads the bonding module in a loop (I don't know all the details as
I'm not the one that is directly interacting with the customer). But the
bug looks to be something that may still be present and possibly present
in mainline too. It will just be much harder to trigger it in mainline.

In -rt, interrupts are threads, and can schedule in and out just like
any other thread. Note, mainline now supports interrupt threads so this
may be easily reproducible in mainline as well. I don't have the ability
to tell the customer to try mainline or other kernels, so my hands are
somewhat tied to what I can do.

But according to a core dump, I tracked down that the eth irq thread
crashed in bond_handle_frame() here:

        slave = bond_slave_get_rcu(skb->dev);
        bond = slave->bond; <--- BUG

the slave returned was NULL and accessing slave->bond caused a NULL
pointer dereference.

Looking at the code that unregisters the handler:

void netdev_rx_handler_unregister(struct net_device *dev)
{

        ASSERT_RTNL();
        RCU_INIT_POINTER(dev->rx_handler, NULL);
        RCU_INIT_POINTER(dev->rx_handler_data, NULL);
}

Which is basically:
        dev->rx_handler = NULL;
        dev->rx_handler_data = NULL;

And looking at __netif_receive_skb() we have:

        rx_handler = rcu_dereference(skb->dev->rx_handler);
        if (rx_handler) {
                if (pt_prev) {
                        ret = deliver_skb(skb, pt_prev, orig_dev);
                        pt_prev = NULL;
                }
                switch (rx_handler(&skb)) {

My question to all of you is, what stops this interrupt from happening
while the bonding module is unloading?  What happens if the interrupt
triggers and we have this:

        CPU0                    CPU1
        ----                    ----
  rx_handler = skb->dev->rx_handler

                        netdev_rx_handler_unregister() {
                           dev->rx_handler = NULL;
                           dev->rx_handler_data = NULL;

  rx_handler()
   bond_handle_frame() {
    slave = skb->dev->rx_handler;
    bond = slave->bond; <-- NULL pointer dereference!!!

What protection am I missing in the bond release handler that would
prevent the above from happening?

</quoting Steven>

We can fix bug this in two ways. First is adding a test in
bond_handle_frame() and others to check if rx_handler_data is NULL.

A second way is adding a synchronize_net() in
netdev_rx_handler_unregister() to make sure that a rcu protected reader
has the guarantee to see a non NULL rx_handler_data.

The second way is better as it avoids an extra test in fast path.

Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jiri Pirko <jpirko@redhat.com>
Cc: Paul E. McKenney <paulmck@us.ibm.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMAINTAINERS: Update netxen_nic maintainers list
Manish Chopra [Thu, 28 Mar 2013 23:54:08 +0000 (23:54 +0000)]
MAINTAINERS: Update netxen_nic maintainers list

o Add myself to netxen_nic maintainers list

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoatl1e: drop pci-msi support because of packet corruption
Hannes Frederic Sowa [Thu, 28 Mar 2013 18:10:50 +0000 (18:10 +0000)]
atl1e: drop pci-msi support because of packet corruption

Usage of pci-msi results in corrupted dma packet transfers to the host.

Reported-by: rebelyouth <rebelyouth.hacklab@gmail.com>
Cc: Huang, Xiong <xiong@qca.qualcomm.com>
Tested-by: Christian Sünkenberg <christian.suenkenberg@student.kit.edu>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: fq_codel: Fix off-by-one error
Vijay Subramanian [Thu, 28 Mar 2013 13:52:00 +0000 (13:52 +0000)]
net: fq_codel: Fix off-by-one error

Currently, we hold a max of sch->limit -1 number of packets instead of
sch->limit packets. Fix this off-by-one error.

Signed-off-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosh_eth: add R-Car support for real
Sergei Shtylyov [Thu, 28 Mar 2013 11:51:31 +0000 (11:51 +0000)]
sh_eth: add R-Car support for real

Commit d0418bb7123f44b23d69ac349eec7daf9103472f (net: sh_eth: Add eth support
for R8A7779 device) was a failed attempt to add support for one of members of
the R-Car SoC family.  That's for three reasons: it treated R8A7779 the  same
as SH7724 except including quite dirty hack adding ECMR_ELB  bit  to the mask
in sh_eth_set_rate() while not removing ECMR_RTM bit (despite it's reserved in
R-Car Ether), and it didn't add a new register offset array despite the closest
SH_ETH_REG_FAST_SH4 mapping differs by 0x200 to the offsets all the R-Car Ether
registers have, and also some of the registers in this old mapping don't exist
on R-Car Ether (due to this, SH7724's 'sh_eth_my_cpu_data' structure is not
adequeate for R-Car too).  Fix all these shortcomings, restoring the SH7724
related section to its pristine state...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosh_eth: move data from header file to driver
Sergei Shtylyov [Thu, 28 Mar 2013 11:48:26 +0000 (11:48 +0000)]
sh_eth: move data from header file to driver

The driver's header file contains initialized register offset tables which (as
any data definitions), of course, have no business being there.  Move them  to
the driver's body, somewhat beautifying the initializers, while at it...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: calxedaxgmac: Wake-on-LAN fixes
Rob Herring [Thu, 28 Mar 2013 11:32:45 +0000 (11:32 +0000)]
net: calxedaxgmac: Wake-on-LAN fixes

WOL is broken because the magic packet status bit is getting set rather
than the enable bit. The PMT interrupt is not getting serviced because
the PMT interrupt is also enabled on the global interrupt, but not
cleared by the global interrupt and the global interrupt is higher
priority. This fixes both of these issues to get WOL working.

There's still a problem with receive after resume, but at least now we
can wake-up.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: calxedaxgmac: fix rx ring handling when OOM
Rob Herring [Thu, 28 Mar 2013 11:32:44 +0000 (11:32 +0000)]
net: calxedaxgmac: fix rx ring handling when OOM

If skb allocation for the rx ring fails repeatedly, we can reach a point
were the ring is empty. In this condition, the driver is out of sync with
the h/w. While this has always been possible, the removal of the skb
recycling seems to have made triggering this problem easier.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: rtnetlink: fdb dflt dump must set idx used for cb->arg[0]
John Fastabend [Fri, 29 Mar 2013 08:18:37 +0000 (08:18 +0000)]
net: rtnetlink: fdb dflt dump must set idx used for cb->arg[0]

In rtnl_fdb_dump() when the fdb_dump ndo op is not populated
we never set the idx value so that cb->arg[0] is always 0.
Resulting in a endless loop of messages.

Introduced with this commit,

commit 090096bf3db1c281ddd034573260045888a68fea
Author: Vlad Yasevich <vyasevic@redhat.com>
Date:   Wed Mar 6 15:39:42 2013 +0000

    net: generic fdb support for drivers without ndo_fdb_<op>

CC: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: core: Remove redundant call to 'nf_reset' in 'dev_forward_skb'
Shmulik Ladkani [Wed, 27 Mar 2013 23:13:26 +0000 (23:13 +0000)]
net: core: Remove redundant call to 'nf_reset' in 'dev_forward_skb'

'nf_reset' is called just prior calling 'netif_rx'.
No need to call it twice.

Reported-by: Igor Michailov <rgohita@gmail.com>
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoip_tunnel: Fix off-by-one error in forming dev name.
Pravin B Shelar [Thu, 28 Mar 2013 08:21:46 +0000 (08:21 +0000)]
ip_tunnel: Fix off-by-one error in forming dev name.

As Ben pointed out following patch fixes bug in checking device
name length limits while forming tunnel device name.

CC: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosmsc75xx: fix jumbo frame support
Steve Glendinning [Thu, 28 Mar 2013 02:34:41 +0000 (02:34 +0000)]
smsc75xx: fix jumbo frame support

This patch enables RX of jumbo frames for LAN7500.

Previously the driver would transmit jumbo frames succesfully but
would drop received jumbo frames (incrementing the interface errors
count).

With this patch applied the device can succesfully receive jumbo
frames up to MTU 9000 (9014 bytes on the wire including ethernet
header).

Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: simplify the getting percpu of flow_cache
Li RongQing [Thu, 28 Mar 2013 02:24:11 +0000 (02:24 +0000)]
net: simplify the getting percpu of flow_cache

replace per_cpu with per_cpu_ptr to save conversion between address and pointer

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: fix the use of this_cpu_ptr
Li RongQing [Wed, 27 Mar 2013 23:42:41 +0000 (23:42 +0000)]
net: fix the use of this_cpu_ptr

flush_tasklet is not percpu var, and percpu is percpu var, and
this_cpu_ptr(&info->cache->percpu->flush_tasklet)
is not equal to
&this_cpu_ptr(info->cache->percpu)->flush_tasklet

1f743b076(use this_cpu_ptr per-cpu helper) introduced this bug.

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agotile: expect new initramfs name from hypervisor file system
Chris Metcalf [Fri, 29 Mar 2013 17:50:21 +0000 (13:50 -0400)]
tile: expect new initramfs name from hypervisor file system

The current Tilera boot infrastructure now provides the initramfs
to Linux as a Tilera-hypervisor file named "initramfs", rather than
"initramfs.cpio.gz", as before.  (This makes it reasonable to use
other compression techniques than gzip on the file without having to
worry about the name causing confusion.)  Adapt to use the new name,
but also fall back to checking for the old name.

Cc'ing to stable so that older kernels will remain compatible with
newer Tilera boot infrastructure.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Cc: stable@vger.kernel.org
11 years agobonding: fix disabling of arp_interval and miimon
nikolay@redhat.com [Wed, 27 Mar 2013 03:32:41 +0000 (03:32 +0000)]
bonding: fix disabling of arp_interval and miimon

Currently if either arp_interval or miimon is disabled, they both get
disabled, and upon disabling they get executed once more which is not
the proper behaviour. Also when doing a no-op and disabling an already
disabled one, the other again gets disabled.
Also fix the error messages with the proper valid ranges, and a small
typo fix in the up delay error message (outputting "down delay", instead
of "up delay").

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoipv6: don't accept node local multicast traffic from the wire
Hannes Frederic Sowa [Tue, 26 Mar 2013 08:13:34 +0000 (08:13 +0000)]
ipv6: don't accept node local multicast traffic from the wire

Erik Hugne's errata proposal (Errata ID: 3480) to RFC4291 has been
verified: http://www.rfc-editor.org/errata_search.php?eid=3480

We have to check for pkt_type and loopback flag because either the
packets are allowed to travel over the loopback interface (in which case
pkt_type is PACKET_HOST and IFF_LOOPBACK flag is set) or they travel
over a non-loopback interface back to us (in which case PACKET_TYPE is
PACKET_LOOPBACK and IFF_LOOPBACK flag is not set).

Cc: Erik Hugne <erik.hugne@ericsson.com>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosky2: Threshold for Pause Packet is set wrong
Mirko Lindner [Tue, 26 Mar 2013 06:38:42 +0000 (06:38 +0000)]
sky2: Threshold for Pause Packet is set wrong

The sky2 driver sets the Rx Upper Threshold for Pause Packet generation to a
wrong value which leads to only 2kB of RAM remaining space. This can lead to
Rx overflow errors even with activated flow-control.

Fix: We should increase the value to 8192/8

Signed-off-by: Mirko Lindner <mlindner@marvell.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosky2: Receive Overflows not counted
Mirko Lindner [Tue, 26 Mar 2013 06:38:35 +0000 (06:38 +0000)]
sky2: Receive Overflows not counted

The sky2 driver doesn't count the Receive Overflows because the MAC
interrupt for this event is not set in the MAC's interrupt mask.
The MAC's interrupt mask is set only for Transmit FIFO Underruns.

Fix: The correct setting should be (GM_IS_TX_FF_UR | GM_IS_RX_FF_OR)
Otherwise the Receive Overflow event will not generate any interrupt.
The  Receive Overflow interrupt is handled correctly

Signed-off-by: Mirko Lindner <mlindner@marvell.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Fri, 29 Mar 2013 18:47:43 +0000 (11:47 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

Pull ceph fix from Sage Weil:
 "This fixes a regression introduced during the last merge window when
  mapping non-existent images."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: don't zero-fill non-image object requests

11 years agonetlink: fix the warning introduced by netlink API replacement
Hong zhi guo [Fri, 29 Mar 2013 05:09:35 +0000 (05:09 +0000)]
netlink: fix the warning introduced by netlink API replacement

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agorbd: don't zero-fill non-image object requests
Alex Elder [Wed, 27 Mar 2013 14:16:30 +0000 (09:16 -0500)]
rbd: don't zero-fill non-image object requests

A result of ENOENT from a read request for an object that's part of
an rbd image indicates that there is a hole in that portion of the
image.  Similarly, a short read for such an object indicates that
the remainder of the read should be interpreted a full read with
zeros filling out the end of the request.

This behavior is not correct for objects that are not backing rbd
image data.  Currently rbd_img_obj_request_callback() assumes it
should be done for all objects.

Change rbd_img_obj_request_callback() so it only does this zeroing
for image objects.  Encapsulate that special handling in its own
function.  Add an assertion that the image object request is a bio
request, since we assume that (and we currently don't support any
other types).

This resolves a problem identified here:
    http://tracker.ceph.com/issues/4559

The regression was introduced by bf0d5f503dc11d6314c0503591d258d60ee9c944.

Reported-by: Dan van der Ster <dan@vanderster.com>
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-off-by: Sage Weil <sage@inktank.com>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Fri, 29 Mar 2013 18:13:25 +0000 (11:13 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "We've had a busy two weeks of bug fixing.  The biggest patches in here
  are some long standing early-enospc problems (Josef) and a very old
  race where compression and mmap combine forces to lose writes (me).
  I'm fairly sure the mmap bug goes all the way back to the introduction
  of the compression code, which is proof that fsx doesn't trigger every
  possible mmap corner after all.

  I'm sure you'll notice one of these is from this morning, it's a small
  and isolated use-after-free fix in our scrub error reporting.  I
  double checked it here."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: don't drop path when printing out tree errors in scrub
  Btrfs: fix wrong return value of btrfs_lookup_csum()
  Btrfs: fix wrong reservation of csums
  Btrfs: fix double free in the btrfs_qgroup_account_ref()
  Btrfs: limit the global reserve to 512mb
  Btrfs: hold the ordered operations mutex when waiting on ordered extents
  Btrfs: fix space accounting for unlink and rename
  Btrfs: fix space leak when we fail to reserve metadata space
  Btrfs: fix EIO from btrfs send in is_extent_unchanged for punched holes
  Btrfs: fix race between mmap writes and compression
  Btrfs: fix memory leak in btrfs_create_tree()
  Btrfs: fix locking on ROOT_REPLACE operations in tree mod log
  Btrfs: fix missing qgroup reservation before fallocating
  Btrfs: handle a bogus chunk tree nicely
  Btrfs: update to use fs_state bit

11 years agoia64 idle: delete stale (*idle)() function pointer
Len Brown [Fri, 29 Mar 2013 18:02:30 +0000 (11:02 -0700)]
ia64 idle: delete stale (*idle)() function pointer

Commit 3e7fc708eb41 ("ia64 idle: delete pm_idle") in 3.9-rc1 didn't
finish the job, leaving an un-initialized reference to (*idle)().

[ Haven't seen a crash from this - but seems like we are just being
  lucky that "idle" is zero so it does get initialized before we jump to
  randomland  - Len ]

Reported-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge branch 'for-curr' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Linus Torvalds [Fri, 29 Mar 2013 18:00:43 +0000 (11:00 -0700)]
Merge branch 'for-curr' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull arc architecture fixes from Vineet Gupta:
 "This includes fix for a serious bug in DMA mapping API, make
  allyesconfig wreckage, removal of bogus email-list placeholder in
  MAINTAINERS, a typo in ptrace helper code and last remaining changes
  for syscall ABI v3 which we are finally starting to transition-to
  internally.

  The request is late than I intended to - but I was held up with
  debugging a timer link list corruption, for which a proposed fix to
  generic timer code was sent out to lkml/tglx earlier today."

* 'for-curr' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: Fix the typo in event identifier flags used by ptrace
  arc: fix dma_address assignment during dma_map_sg()
  ARC: Remove SET_PERSONALITY (tracks cross-arch change)
  ARC: ABIv3: fork/vfork wrappers not needed in "no-legacy-syscall" ABI
  ARC: ABIv3: Print the correct ABI ver
  ARC: make allyesconfig build breakages
  ARC: MAINTAINERS update for ARC

11 years agoBtrfs: don't drop path when printing out tree errors in scrub
Josef Bacik [Fri, 29 Mar 2013 14:09:34 +0000 (08:09 -0600)]
Btrfs: don't drop path when printing out tree errors in scrub

A user reported a panic where we were panicing somewhere in
tree_backref_for_extent from scrub_print_warning.  He only captured the trace
but looking at scrub_print_warning we drop the path right before we mess with
the extent buffer to print out a bunch of stuff, which isn't right.  So fix this
by dropping the path after we use the eb if we need to.  Thanks,

Cc: stable@vger.kernel.org
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
11 years agotarget: Fix RESERVATION_CONFLICT status regression for iscsi-target special case
Nicholas Bellinger [Fri, 29 Mar 2013 06:06:00 +0000 (23:06 -0700)]
target: Fix RESERVATION_CONFLICT status regression for iscsi-target special case

This patch fixes a regression introduced in v3.8-rc1 code where a failed
target_check_reservation() check in target_setup_cmd_from_cdb() was causing
an incorrect SAM_STAT_GOOD status to be returned during a WRITE operation
performed by an unregistered / unreserved iscsi initiator port.

This regression is only effecting iscsi-target due to a special case check
for TCM_RESERVATION_CONFLICT within iscsi_target_erl1.c:iscsit_execute_cmd(),
and was still correctly disallowing WRITE commands from backend submission
for unregistered / unreserved initiator ports, while returning the incorrect
SAM_STAT_GOOD status due to the missing SAM_STAT_RESERVATION_CONFLICT
assignment.

This regression was first introduced with:

commit de103c93aff0bed0ae984274e5dc8b95899badab
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Nov 6 12:24:09 2012 -0800

    target: pass sense_reason as a return value

Go ahead and re-add the missing SAM_STAT_RESERVATION_CONFLICT assignment
during a target_check_reservation() failure, so that iscsi-target code
sends the correct SCSI status.

All other fabrics using target_submit_cmd_*() with a RESERVATION_CONFLICT
call to transport_generic_request_failure() are not effected by this bug.

Reported-by: Jeff Leung <jleung@curriegrad2004.ca>
Cc: Christoph Hellwig <hch@lst.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
11 years agotcm_vhost: Avoid VIRTIO_RING_F_EVENT_IDX feature bit
Nicholas Bellinger [Thu, 28 Mar 2013 00:23:41 +0000 (17:23 -0700)]
tcm_vhost: Avoid VIRTIO_RING_F_EVENT_IDX feature bit

This patch adds a VHOST_SCSI_FEATURES mask minus VIRTIO_RING_F_EVENT_IDX
so that vhost-scsi-pci userspace will strip this feature bit once
GET_FEATURES reports it as being unsupported on the host.

This is to avoid a bug where ->handle_kicks() are missed when EVENT_IDX
is enabled by default in userspace code.

(mst: Rename to VHOST_SCSI_FEATURES + add comment)

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Asias He <asias@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
11 years agoRevert "mm: introduce VM_POPULATE flag to better deal with racy userspace programs"
Michel Lespinasse [Thu, 28 Mar 2013 23:26:23 +0000 (16:26 -0700)]
Revert "mm: introduce VM_POPULATE flag to better deal with racy userspace programs"

This reverts commit 186930500985 ("mm: introduce VM_POPULATE flag to
better deal with racy userspace programs").

VM_POPULATE only has any effect when userspace plays racy games with
vmas by trying to unmap and remap memory regions that mmap or mlock are
operating on.

Also, the only effect of VM_POPULATE when userspace plays such games is
that it avoids populating new memory regions that get remapped into the
address range that was being operated on by the original mmap or mlock
calls.

Let's remove VM_POPULATE as there isn't any strong argument to mandate a
new vm_flag.

Signed-off-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge tag 'usb-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Thu, 28 Mar 2013 22:54:25 +0000 (15:54 -0700)]
Merge tag 'usb-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg Kroah-Hartman:
 "Here are some USB fixes to resolve issues reported recently, as well
  as a new device id for the ftdi_sio driver."

* tag 'usb-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: ftdi_sio: Add support for Mitsubishi FX-USB-AW/-BD
  usb: Fix compile error by selecting USB_OTG_UTILS
  USB: serial: fix hang when opening port
  USB: EHCI: fix bug in iTD/siTD DMA pool allocation
  xhci: Don't warn on empty ring for suspended devices.
  usb: xhci: Fix TRB transfer length macro used for Event TRB.
  usb/acpi: binding xhci root hub usb port with ACPI
  usb: add find_raw_port_number callback to struct hc_driver()
  usb: xhci: fix build warning

11 years agoMerge tag 'tty-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Thu, 28 Mar 2013 22:53:33 +0000 (15:53 -0700)]
Merge tag 'tty-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull TTY/serial fixes from Greg Kroah-Hartman:
 "Here are some tty/serial driver fixes for 3.9.

  The big thing here is the fix for the huge mess we caused renaming the
  8250 driver accidentally in the 3.7 kernel release, without realizing
  that there were users of the module options that suddenly broke.  This
  is now resolved, and, to top the injury off, we have a backwards-
  compatible option for those users who got used to the new name since
  3.7.  Ugh, sorry about that.

  Other than that, some other minor fixes for issues that have been
  reported by users."

* tag 'tty-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  Xilinx: ARM: UART: clear pending irqs before enabling irqs
  TTY: 8250, deprecated 8250_core.* options
  TTY: 8250, revert module name change
  serial: 8250_pci: Add WCH CH352 quirk to avoid Xscale detection
  tty: atmel_serial_probe(): index of atmel_ports[] fix

11 years agoMerge tag 'staging-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Thu, 28 Mar 2013 22:52:54 +0000 (15:52 -0700)]
Merge tag 'staging-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg Kroah-Hartman:
 "Here are two tiny staging driver fixes to resolve issues that have
  been reported."

* tag 'staging-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: comedi: s626: fix continuous acquisition
  staging: zcache: fix typo "64_BIT"

11 years agoMerge tag 'driver-core-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 28 Mar 2013 22:52:14 +0000 (15:52 -0700)]
Merge tag 'driver-core-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull sysfs fixes from Greg Kroah-Hartman:
 "Here are two fixes for sysfs that resolve issues that have been found
  by the Trinity fuzz tool, causing oopses in sysfs.  They both have
  been in linux-next for a while to ensure that they do not cause any
  other problems."

* tag 'driver-core-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  sysfs: handle failure path correctly for readdir()
  sysfs: fix race between readdir and lseek

11 years agoMerge tag 'char-misc-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Thu, 28 Mar 2013 22:51:33 +0000 (15:51 -0700)]
Merge tag 'char-misc-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg Kroah-Hartman:
 "Here are some small char/misc driver fixes that resolve issues
  recently reported against the 3.9-rc kernels.  All have been in
  linux-next for a while."

* tag 'char-misc-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  VMCI: Fix process-to-process DRGAMs.
  mei: ME hardware reset needs to be synchronized
  mei: add mei_stop function to stop mei device
  extcon: max77693: Initialize register of MUIC device to bring up it without platform data
  extcon: max77693: Fix bug of wrong pointer when platform data is not used
  extcon: max8997: Check the pointer of platform data to protect null pointer error

11 years agoMerge branch 'wireless'
David S. Miller [Thu, 28 Mar 2013 21:42:36 +0000 (17:42 -0400)]
Merge branch 'wireless'

John W. Linville says:

====================
Please excuse this larger-than-I-would-like pull request intended
for the 3.9 stream.  There are a number of late-breaking fixes,
including a revert...

Regarding the mac80211 bits, Johannes says:

"I have two tracing fixes (one from Vladimir), two fixes for P2P device
crashes, a fix for a BSS memory leak/lost update problem and a fix from
Ben for a scanning issue in mac80211. It's a little on the large side
because one of the P2P device problems required a bit much locking work,
but I've run through all the different scenarios (wext/nl80211,
p2p-device/station interface, ifdown/rfkill) to verify locking with
lockdep."

As for the iwlwifi bits, Johannes says:

"I have three little fixes to the driver from Emmanuel. One addresses a
small bug Ben Hutchings found during the stable review process and two
address some warnings in the driver when RF-Kill is asserted."

Along with those...

Avinash Patil fixes an mwifiex bug cause by failing to process a sleep
command due to bad SKB manipulation when going into power saving mode.

Colin Ian King avoids a null pointer dereference in iwl4965.

Dan Williams officially announces that he has dropped maintainership
of the libertas driver.

Iestyn C. Elfick adds a work-around to avoid b43 DMA transmision
sequence error that would lead to a device reset.

Luis R. Rodriguez avoids an ath9k warning by not queueing a work item
while going to suspend mode.

Rafał Miłecki provides a pair of b43 N-PHY fixes related to RSSI
calibration.

Finally, I revert "brcmsmac: support 4313iPA" because it has been
reported in many places to cause problems with the already supported
4313ePA devices.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoaudit: pass int* to nlmsg_next
Alexandru Copot [Thu, 28 Mar 2013 21:31:29 +0000 (23:31 +0200)]
audit: pass int* to nlmsg_next

Commit 941912133025926307c7a65b203fa38403b1063a replaced the macros
NLMSG_NEXT with calls to nlmsg_next which produces this warning:

kernel/audit.c: In function ‘audit_receive_skb’:
kernel/audit.c:928:3: warning: passing argument 2 of ‘nlmsg_next’ makes pointer from integer without a cast
In file included from include/net/rtnetlink.h:5:0,
                 from include/net/neighbour.h:28,
                 from include/net/dst.h:17,
                 from include/net/sock.h:68,
                 from kernel/audit.c:55:
include/net/netlink.h:359:1: note: expected ‘int *’ but argument is of type ‘int’

Fix this by sending the intended pointer.

Signed-off-by: Alexandru Copot <alex.mihai.c@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge tag 'pm+acpi-3.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Thu, 28 Mar 2013 20:47:31 +0000 (13:47 -0700)]
Merge tag 'pm+acpi-3.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management fixes from Rafael J Wysocki:

 - Fix for a recent cpufreq regression related to acpi-cpufreq and
   suspend/resume from Viresh Kumar.

 - cpufreq stats reference counting fix from Viresh Kumar.

 - intel_pstate driver fixes from Dirk Brandewie and Konrad Rzeszutek
   Wilk.

 - New ACPI suspend blacklist entry for Sony Vaio VGN-FW21M from Fabio
   Valentini.

 - ACPI Platform Error Interface (APEI) fix from Chen Gong.

 - PCI root bridge hotplug locking fix from Yinghai Lu.

* tag 'pm+acpi-3.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PCI / ACPI: hold acpi_scan_lock during root bus hotplug
  ACPI / APEI: fix error status check condition for CPER
  ACPI / PM: fix suspend and resume on Sony Vaio VGN-FW21M
  cpufreq: acpi-cpufreq: Don't set policy->related_cpus from .init()
  cpufreq: stats: do cpufreq_cpu_put() corresponding to cpufreq_cpu_get()
  intel-pstate: Use #defines instead of hard-coded values.
  cpufreq / intel_pstate: Fix calculation of current frequency
  cpufreq / intel_pstate: Add function to check that all MSRs are valid

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Thu, 28 Mar 2013 20:46:20 +0000 (13:46 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:
 "This removes IPsec ESN support from the talitos/caam drivers since
  they were implemented incorrectly, causing interoperability problems
  if ESN is used with them."

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  Revert "crypto: caam - add IPsec ESN support"
  Revert "crypto: talitos - add IPsec ESN support"

11 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas...
Linus Torvalds [Thu, 28 Mar 2013 20:45:49 +0000 (13:45 -0700)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64

Pull arm64 fix from Catalin Marinas:
 "Fix IS_ENABLED() usage typo (missing CONFIG_ prefix)."

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  ARM64: early_printk: Fix check for CONFIG_ARM64_64K_PAGES

11 years agoMerge tag 'fbdev-fixes-3.9-rc4' of git://gitorious.org/linux-omap-dss2/linux
Linus Torvalds [Thu, 28 Mar 2013 20:44:40 +0000 (13:44 -0700)]
Merge tag 'fbdev-fixes-3.9-rc4' of git://gitorious.org/linux-omap-dss2/linux

Pull fbdev fixes from Tomi Valkeinen:
 "Since Florian is still away/inactive, I volunteered to collect fbdev
  fixes for 3.9 and changes for 3.10.  I didn't receive any other fbdev
  fixes than OMAP yet, but I didn't want to delay this further as
  there's a compilation fix for OMAP1.  So there could be still some
  fbdev fixes on the way a bit later.

  This contains:

   - Fix OMAP1 compilation
   - OMAP display fixes"

* tag 'fbdev-fixes-3.9-rc4' of git://gitorious.org/linux-omap-dss2/linux:
  omapdss: features: fix supported outputs for OMAP4
  OMAPDSS: tpo-td043 panel: fix data passing between SPI/DSS parts
  omapfb: fix broken build on OMAP1

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm...
Linus Torvalds [Thu, 28 Mar 2013 20:43:46 +0000 (13:43 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

Pull userns fixes from Eric W Biederman:
 "The bulk of the changes are fixing the worst consequences of the user
  namespace design oversight in not considering what happens when one
  namespace starts off as a clone of another namespace, as happens with
  the mount namespace.

  The rest of the changes are just plain bug fixes.

  Many thanks to Andy Lutomirski for pointing out many of these issues."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  userns: Restrict when proc and sysfs can be mounted
  ipc: Restrict mounting the mqueue filesystem
  vfs: Carefully propogate mounts across user namespaces
  vfs: Add a mount flag to lock read only bind mounts
  userns:  Don't allow creation if the user is chrooted
  yama:  Better permission check for ptraceme
  pid: Handle the exit of a multi-threaded init.
  scm: Require CAP_SYS_ADMIN over the current pidns to spoof pids.

11 years agobridge: remove unused variable ifm
Hong zhi guo [Thu, 28 Mar 2013 06:21:22 +0000 (06:21 +0000)]
bridge: remove unused variable ifm

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet/macb: make clk_enable atomic
Steffen Trumtrar [Wed, 27 Mar 2013 23:07:07 +0000 (23:07 +0000)]
net/macb: make clk_enable atomic

Use clk_prepare_enable/clk_disable_unprepare to be safe on SMP systems.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Fabio Estevam <festevam@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet/macb: force endian_swp_pkt_en to off
Steffen Trumtrar [Wed, 27 Mar 2013 23:07:06 +0000 (23:07 +0000)]
net/macb: force endian_swp_pkt_en to off

The core has a bit for swapping packet data endianism.
Reset default from Cadence is off. Xilinx however, who uses this core on the
Zynq SoCs, opted for on.
Force it to off. This shouldn't change the behaviour for current users of the
macb, but enables usage on Zynq devices.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet/macb: clear tx/rx completion flags in ISR
Steffen Trumtrar [Wed, 27 Mar 2013 23:07:05 +0000 (23:07 +0000)]
net/macb: clear tx/rx completion flags in ISR

At least in the cadence IP core on the Xilinx Zynq SoC the TCOMP/RCOMP flags
are not auto-cleaned. As these flags are evaluated, they need to be cleaned.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: Nicolas Ferre <nicolas.ferre@atmel.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/linville/wirel...
John W. Linville [Thu, 28 Mar 2013 18:40:06 +0000 (14:40 -0400)]
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem

11 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Thu, 28 Mar 2013 18:38:54 +0000 (14:38 -0400)]
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next

Jeff Kirsher says:

====================
This series contains updates to e1000e, ixgbe and ixgbevf.

Majority of the changes are against e1000e (from Bruce Allan).
Bruce adds additional error handling on PHY register access, as
well as improve slow performance on 82579 when connected to a
10Mbit hub.  In addition, fixes LED blink logic for cathode
LED design.  Most notable is added EEE support which is enabled
by default and the added support for LTR on I217/I218.

The ixgbe and ixgbevf from Greg Rose changes the VM so that if a user
does not assign a MAC address, the MAC address is set to all zeros
instead of a random MAC address.  This ensures that we always know when
we have a random address and udev won't get upset about it.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge
David S. Miller [Thu, 28 Mar 2013 18:34:23 +0000 (14:34 -0400)]
Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge

Included changes:
- A fix for the network coding component which has been added within the last
  pull request (so it is in linux-3.10). The problem has been spotted thanks to
  Fengguang Wu's automated daily checks on our tree.
- Implementation of the RTNL API for virtual interface creation/deletion and slave
  manipulation
- substitution of seq_printf with seq_puts when possible
- minor cleanups

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoaoe: reserve enough headroom on skbs
Eric Dumazet [Wed, 27 Mar 2013 18:28:41 +0000 (18:28 +0000)]
aoe: reserve enough headroom on skbs

Some network drivers use a non default hard_header_len

Transmitted skb should take into account dev->hard_header_len, or risk
crashes or expensive reallocations.

In the case of aoe, lets reserve MAX_HEADER bytes.

David reported a crash in defxx driver, solved by this patch.

Reported-by: David Oostdyk <daveo@ll.mit.edu>
Tested-by: David Oostdyk <daveo@ll.mit.edu>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ed Cashin <ecashin@coraid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoconnector: replace obsolete NLMSG_* with type safe nlmsg_*
Hong zhi guo [Wed, 27 Mar 2013 06:54:56 +0000 (06:54 +0000)]
connector: replace obsolete NLMSG_* with type safe nlmsg_*

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoscsi: replace obsolete NLMSG_* with type safe nlmsg_*
Hong zhi guo [Wed, 27 Mar 2013 06:53:15 +0000 (06:53 +0000)]
scsi: replace obsolete NLMSG_* with type safe nlmsg_*

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agogdm72xx: replace obsolete NLMSG_* with type safe nlmsg_*
Hong zhi guo [Wed, 27 Mar 2013 06:52:17 +0000 (06:52 +0000)]
gdm72xx: replace obsolete NLMSG_* with type safe nlmsg_*

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoselinux: replace obsolete NLMSG_* with type safe nlmsg_*
Hong zhi guo [Wed, 27 Mar 2013 06:49:35 +0000 (06:49 +0000)]
selinux: replace obsolete NLMSG_* with type safe nlmsg_*

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoaudit: replace obsolete NLMSG_* with type safe nlmsg_*
Hong zhi guo [Wed, 27 Mar 2013 06:49:06 +0000 (06:49 +0000)]
audit: replace obsolete NLMSG_* with type safe nlmsg_*

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet-next: replace obsolete NLMSG_* with type safe nlmsg_*
Hong zhi guo [Wed, 27 Mar 2013 06:47:04 +0000 (06:47 +0000)]
net-next: replace obsolete NLMSG_* with type safe nlmsg_*

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agousb: ftdi_sio: Add support for Mitsubishi FX-USB-AW/-BD
Konstantin Holoborodko [Thu, 28 Mar 2013 15:06:13 +0000 (00:06 +0900)]
usb: ftdi_sio: Add support for Mitsubishi FX-USB-AW/-BD

It enhances the driver for FTDI-based USB serial adapters
to recognize Mitsubishi Electric Corp. USB/RS422 Converters
as FT232BM chips and support them.
https://search.meau.com/?q=FX-USB-AW

Signed-off-by: Konstantin Holoborodko <klh.kernel@gmail.com>
Tested-by: Konstantin Holoborodko <klh.kernel@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agomg_disk: fix error return code in mg_probe()
Wei Yongjun [Thu, 28 Mar 2013 15:43:43 +0000 (09:43 -0600)]
mg_disk: fix error return code in mg_probe()

Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
11 years agoBtrfs: fix wrong return value of btrfs_lookup_csum()
Miao Xie [Thu, 28 Mar 2013 08:12:15 +0000 (08:12 +0000)]
Btrfs: fix wrong return value of btrfs_lookup_csum()

If we don't find the expected csum item, but find a csum item which is
adjacent to the specified extent, we should return -EFBIG, or we should
return -ENOENT. But btrfs_lookup_csum() return -EFBIG even the csum item
is not adjacent to the specified extent. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: fix wrong reservation of csums
Miao Xie [Thu, 28 Mar 2013 08:08:20 +0000 (08:08 +0000)]
Btrfs: fix wrong reservation of csums

We reserve the space for csums only when we write data into a file, in
the other cases, such as tree log, log replay, we don't do reservation,
so we can use the reservation of the transaction handle just for the former.
And for the latter, we should use the tree's own reservation. But the
function - btrfs_csum_file_blocks() didn't differentiate between these
two types of the cases, fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: fix double free in the btrfs_qgroup_account_ref()
Wang Shilong [Mon, 25 Mar 2013 11:08:23 +0000 (11:08 +0000)]
Btrfs: fix double free in the btrfs_qgroup_account_ref()

The function btrfs_find_all_roots is responsible to allocate
memory for 'roots' and free it if errors happen,so the caller should not
free it again since the work has been done.

Besides,'tmp' is allocated after the function btrfs_find_all_roots,
so we can return directly if btrfs_find_all_roots() fails.

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Reviewed-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>