Commit Graph

38099 Commits

Author SHA1 Message Date
Ben Hutchings
b590ace09d sfc: Fix efx_rx_buf_offset() in the presence of swiotlb
We assume that the mapping between DMA and virtual addresses is done
on whole pages, so we can find the page offset of an RX buffer using
the lower bits of the DMA address.  However, swiotlb maps in units of
2K, breaking this assumption.

Add an explicit page_offset field to struct efx_rx_buffer.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2013-02-26 14:57:16 +00:00
Ben Hutchings
3a68f19d7a sfc: Properly sync RX DMA buffer when it is not the last in the page
We may currently allocate two RX DMA buffers to a page, and only unmap
the page when the second is completed.  We do not sync the first RX
buffer to be completed; this can result in packet loss or corruption
if the last RX buffer completed in a NAPI poll is the first in a page
and is not DMA-coherent.  (In the middle of a NAPI poll, we will
handle the following RX completion and unmap the page *before* looking
at the content of the first buffer.)

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2013-02-26 14:55:49 +00:00
Ming Lei
eb970ff07c usbnet: smsc95xx: rename FEATURE_AUTOSUSPEND
The name of FEATURE_AUTOSUSPEND is very misleading and the actual
meaning is remote wakeup, but a device incapable of remote wakeup
still can support USB autosuspend under some situations, so rename
it to avoid misunderstanding.

Cc: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-25 15:49:52 -05:00
Ming Lei
42e21c0107 usbnet: smsc95xx: fix broken runtime suspend
Commit b2d4b150(smsc95xx: enable dynamic autosuspend) implements
autosuspend, but breaks current runtime suspend, such as:
when the interface becomes down, the usb device can't be put into
runtime suspend any more.

This patch fixes the broken runtime suspend.

Cc: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-25 15:49:51 -05:00
Ming Lei
7643721471 usbnet: smsc95xx: fix suspend failure
The three below functions:

	smsc95xx_enter_suspend0()
	smsc95xx_enter_suspend1()
	smsc95xx_enter_suspend2()

return > 0 in case of success, so they will cause smsc95xx_suspend()
to return > 0 and cause suspend failure.

The bug is introduced in commit 3b9f7d(smsc95xx: fix error handling
in suspend failure case).

Cc: <stable@vger.kernel.org>		[3.8]
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-25 15:49:51 -05:00
Rafał Miłecki
70a737b795 bgmac: fix indexing of 2nd level loops
We were using the same variable for iterating two nested loops.

Reported-by: Tijs Van Buggenhout <tvb@able.be>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-25 15:47:41 -05:00
Larry Finger
63a02ce1c5 b43: Fix lockdep splat on module unload
On unload, b43 produces a lockdep warning that can be summarized in the
following way:

 ======================================================
 [ INFO: possible circular locking dependency detected ]
 3.8.0-wl+ #117 Not tainted
 -------------------------------------------------------
 modprobe/5557 is trying to acquire lock:
  ((&wl->firmware_load)){+.+.+.}, at: [<ffffffff81062160>] flush_work+0x0/0x2a0

 but task is already holding lock:
  (rtnl_mutex){+.+.+.}, at: [<ffffffff813bd7d2>] rtnl_lock+0x12/0x20

 which lock already depends on the new lock.
 [ INFO: possible circular locking dependency detected ]
 ======================================================

The full output is available at http://lkml.indiana.edu/hypermail/linux/kernel/1302.3/00060.html.
To summarize, commit 6b6fa58 added a 'cancel_work_sync(&wl->firmware_load)'
call in the wrong place.

The fix is to move the cancel_work_sync() call to b43_bcma_remove() and
b43_ssb_remove(). Thanks to Johannes Berg and Michael Buesch for help in
diagnosing the log output.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [V3.5+]
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-25 15:47:41 -05:00
Pravin B Shelar
8dc98eb2e8 VXLAN: Use tunnel_ip_select_ident() for tunnel IP-Identification.
tunnel_ip_select_ident() is more efficient when generating ip-header
id given inner packet is of ipv4 type.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-25 15:47:41 -05:00
John W. Linville
6d6436fbcb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2013-02-25 14:50:31 -05:00
Syam Sidhardhan
ea5cdccc46 net/pasemi: Fix missing coding style
Fix missing () & { }

Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-24 21:22:47 -05:00
Neil Horman
48412a7e7d vmxnet3: fix ethtool ring buffer size setting
Noticed that vmxnet3's get_ringparam function was returning the summation of all
ring buffers on a NIC, rather than just the size of any one ring.  This causes
problems when a vmxnet3 instance has multiple queues, as ethtool, when setting
ring parameters, first gets the current ring parameters to set the existing
values in the set_ringparm commannd.  The result is, that unless both rx and tx
ring sizes are set in a single operation, which ever ring is not set will
silently have its ring count multiplied by the number of queues on the NIC until
it reaches a driver defined maxiumum value.

Fix it by not multiplying the rx and tx ring sizes by the number of queues in
the system, like every other driver.  Tested by myself successfully.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Shreyas Bhatewara <sbhatewara@vmware.com>
CC: "VMware, Inc." <pv-drivers@vmware.com>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-24 20:18:55 -05:00
stephen hemminger
280b74f7f9 vmxnet3: make local function static
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-24 20:18:55 -05:00
stephen hemminger
732ac8cacb bnx2x: remove dead code and make local funcs static
Sparse warned about several functions that were unnecessarily global.
After making them static, discovered that several functions were actually never used.

Compile tested only.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Eilon Greenstein <eilong@broadcomo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-24 20:16:02 -05:00
Paul Gortmaker
62ed839dba gianfar: fix compile fail for NET_POLL=y due to struct packing
Commit ee873fda3b ("gianfar: Pack struct
gfar_priv_grp into three cachelines") moved the irq number and names
off into a separate struct and created accessors for them.  However
it was never tested with NET_POLL enabled, and so some conversions
that were simply overlooked went undetected until now.

Make the netpoll ones also use the gfar_irq() accessors.

Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Claudiu Manoil <claudiu.manoil@freescale.com>
Cc: Jianhua Xie <jianhua.xie@freescale.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-24 12:04:01 -05:00
Kees Cook
c9b20a5eff vxlan: remove depends on CONFIG_EXPERIMENTAL
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-23 13:51:54 -05:00
Kleber Sacilotto de Souza
3770699675 mlx4_en: fix allocation of CPU affinity reverse-map
The mlx4_en driver allocates the number of objects for the CPU affinity
reverse-map based on the number of rx rings of the device. However,
mlx4_assign_eq() calls irq_cpu_rmap_add() as many times as IRQ's are
assigned to EQ's, which can be as large as mlx4_dev->caps.comp_pool. If
caps.comp_pool is larger than rx_ring_num we will eventually hit the
BUG_ON() in cpu_rmap_add().

Fix this problem by allocating space for the maximum number of CPU
affinity reverse-map objects we might want to add.

Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Acked-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-23 13:51:54 -05:00
Kleber Sacilotto de Souza
427a96252d mlx4_en: fix allocation of device tx_cq
The memory to hold the network device tx_cq is not being allocated with
the correct size in mlx4_en_init_netdev(). It should use MAX_TX_RINGS
instead of MAX_RX_RINGS. This can cause problems if the number of tx
rings being used is greater than MAX_RX_RINGS.

Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Acked-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-23 13:51:54 -05:00
Fabio Estevam
e2f8d555ec net: fec: Fix division by zero
commit 7f7d6c282 (net: fec: Ensure that initialization is done prior to
request_irq()) placed fec_ptp_init() into a point that ptp clock was not
available, which causes a division by zero in fec_ptp_start_cyclecounter():

[   17.895723] Division by zero in kernel.
[   17.899571] Backtrace:
[   17.902094] [<80012564>] (dump_backtrace+0x0/0x10c) from [<8056deec>]
(dump_stack+0x18/0x1c)
[   17.910539]  r6:bfba8500 r5:8075c950 r4:bfba8000 r3:bfbd0000
[   17.916284] [<8056ded4>] (dump_stack+0x0/0x1c) from [<80012688>]
(__div0+0x18/0x20)
[   17.923968] [<80012670>] (__div0+0x0/0x20) from [<802829c4>] (Ldiv0+0x8/0x10)
[   17.931140] [<80398534>] (fec_ptp_start_cyclecounter+0x0/0x110) from
[<80394f64>] (fec_restart+0x6c8/0x754)
[   17.940898] [<8039489c>] (fec_restart+0x0/0x754) from [<803969a0>]
(fec_enet_adjust_link+0xdc/0x108)
[   17.950046] [<803968c4>] (fec_enet_adjust_link+0x0/0x108) from [<80390bc4>]
(phy_state_machine+0x178/0x534)
...

Fix this by rearraging the code so that fec_ptp_init() is called only after
the clocks have been properly acquired.

Tested on both mx53 and mx6 platforms.

Reported-by: Jim Baxter <jim_baxter@mentor.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-22 15:10:19 -05:00
Wei Yongjun
dc4a787c8f brcmfmac: fix missing unlock on error in brcmf_notify_vif_event()
Add the missing unlock before return from function brcmf_notify_vif_event()
in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-22 14:50:47 -05:00
Avinash Patil
48f4d91679 mwifiex: fix system freeze while reloading driver
Unload sequence for mwifiex PCIE driver is as follows:
1. Invoking cleanup module from kernel results into
   pci_unregister_driver
2. Kernel invokes PCIE remove() handler which disconnects all
   interfaces.
3. One step during disconnect is to clean PCIE TX rings.
   During this we read txbd_rdptr from FW.

While loading driver next time, we see pci_enable_device()
results into system freeze. This may have happened because we
accessed PCI device after unregistering from bus driver.
Removing this ioread() operation resolves this bug.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-22 14:50:46 -05:00
Daniel Drake
1499d9fa54 mwifiex: don't drop carrier flag over suspend
If the system suspends with mwifiex wifi powered on, and is then woken
by an ICMP ping packet, the ping response is discarded by the kernel
because the kernel incorrectly thinks there is no carrier.

I can't see any valid reason to want to report loss of carrier here,
so remove the offending code.

Fixes http://dev.laptop.org/ticket/12554

Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-22 14:50:46 -05:00
Jitendra Kalsaria
0ab8a9f5fa qlcnic: Bump up the version to 5.1.35
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-21 18:15:58 -05:00
Manish Chopra
8e29965db6 qlcnic: Fix configure interrupts for 83xx adapter types
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-21 18:15:58 -05:00
Shahed Shaikh
d09529e6a6 qlcnic: Fix internal loopback test for 82xx adapter
o Use correct function to clear loopback mode.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-21 18:15:57 -05:00
Fabio Estevam
7f7d6c282e net: fec: Ensure that initialization is done prior to request_irq()
Currently request_irq() is called prior to fec_enet_init() and fec_ptp_init(),
which causes the following crash on a mx53qsb:

Unable to handle kernel NULL pointer dereference at virtual address 00000002
pgd = 80004000
[00000002] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 0    Not tainted  (3.8.0-rc7-next-20130215+ #346)
PC is at fec_enet_interrupt+0xd0/0x348
LR is at fec_enet_interrupt+0xb8/0x348
pc : [<80372b7c>]    lr : [<80372b64>]    psr: 60000193
sp : df855c20  ip : df855c20  fp : df855c74
r10: 00000516  r9 : 1c000000  r8 : 00000000
r7 : 00000000  r6 : 00000000  r5 : 00000000  r4 : df9b7800
r3 : df9b7df4  r2 : 00000000  r1 : 00000000  r0 : df9b7d34

Ensure that such initialization functions are called prior to requesting the
interrupts, so that all necessary the data structures are in place when the
irqs occur.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-21 15:37:49 -05:00
Linus Torvalds
a0b1c42951 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking update from David Miller:

 1) Checkpoint/restarted TCP sockets now can properly propagate the TCP
    timestamp offset.  From Andrey Vagin.

 2) VMWARE VM VSOCK layer, from Andy King.

 3) Much improved support for virtual functions and SR-IOV in bnx2x,
    from Ariel ELior.

 4) All protocols on ipv4 and ipv6 are now network namespace aware, and
    all the compatability checks for initial-namespace-only protocols is
    removed.  Thanks to Tom Parkin for helping deal with the last major
    holdout, L2TP.

 5) IPV6 support in netpoll and network namespace support in pktgen,
    from Cong Wang.

 6) Multiple Registration Protocol (MRP) and Multiple VLAN Registration
    Protocol (MVRP) support, from David Ward.

 7) Compute packet lengths more accurately in the packet scheduler, from
    Eric Dumazet.

 8) Use per-task page fragment allocator in skb_append_datato_frags(),
    also from Eric Dumazet.

 9) Add support for connection tracking labels in netfilter, from
    Florian Westphal.

10) Fix default multicast group joining on ipv6, and add anti-spoofing
    checks to 6to4 and 6rd.  From Hannes Frederic Sowa.

11) Make ipv4/ipv6 fragmentation memory limits more reasonable in modern
    times, rearrange inet frag datastructures for better cacheline
    locality, and move more operations outside of locking.  From Jesper
    Dangaard Brouer.

12) Instead of strict master <--> slave relationships, allow arbitrary
    scenerios with "upper device lists".  From Jiri Pirko.

13) Improve rate limiting accuracy in TBF and act_police, also from Jiri
    Pirko.

14) Add a BPF filter netfilter match target, from Willem de Bruijn.

15) Orphan and delete a bunch of pre-historic networking drivers from
    Paul Gortmaker.

16) Add TSO support for GRE tunnels, from Pravin B SHelar.  Although
    this still needs some minor bug fixing before it's %100 correct in
    all cases.

17) Handle unresolved IPSEC states like ARP, with a resolution packet
    queue.  From Steffen Klassert.

18) Remove TCP Appropriate Byte Count support (ABC), from Stephen
    Hemminger.  This was long overdue.

19) Support SO_REUSEPORT, from Tom Herbert.

20) Allow locking a socket BPF filter, so that it cannot change after a
    process drops capabilities.

21) Add VLAN filtering to bridge, from Vlad Yasevich.

22) Bring ipv6 on-par with ipv4 and do not cache neighbour entries in
    the ipv6 routes, from YOSHIFUJI Hideaki.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1538 commits)
  ipv6: fix race condition regarding dst->expires and dst->from.
  net: fix a wrong assignment in skb_split()
  ip_gre: remove an extra dst_release()
  ppp: set qdisc_tx_busylock to avoid LOCKDEP splat
  atl1c: restore buffer state
  net: fix a build failure when !CONFIG_PROC_FS
  net: ipv4: fix waring -Wunused-variable
  net: proc: fix build failed when procfs is not configured
  Revert "xen: netback: remove redundant xenvif_put"
  net: move procfs code to net/core/net-procfs.c
  qmi_wwan, cdc-ether: add ADU960S
  bonding: set sysfs device_type to 'bond'
  bonding: fix bond_release_all inconsistencies
  b44: use netdev_alloc_skb_ip_align()
  xen: netback: remove redundant xenvif_put
  net: fec: Do a sanity check on the gpio number
  ip_gre: propogate target device GSO capability to the tunnel device
  ip_gre: allow CSUM capable devices to handle packets
  bonding: Fix initialize after use for 3ad machine state spinlock
  bonding: Fix race condition between bond_enslave() and bond_3ad_update_lacp_rate()
  ...
2013-02-20 18:58:50 -08:00
Linus Torvalds
b3cdda2b4f Device tree changes for v3.9
All around device tree changes destined for v3.8. Aside from the
 documentation updates the highlights in this branch include:
 - Kbuild changes for using CPP with .dts files
 - locking fix from preempt_rt patchset
 - include DT alias names in device uevent
 - Selftest bugfixes and improvements
 - New function for counting phandles stanzas in a property
 - constify argument to of_node_full_name()
 - Various bug fixes
 
 This tree did also contain a commit to use platform_device_add instead
 of open-coding the device add code, but it caused problems with amba
 devices and needed to be reverted.
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Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linux

Pull device tree changes from Grant Likely:
 "All around device tree changes destined for v3.8.  Aside from the
  documentation updates the highlights in this branch include:

   - Kbuild changes for using CPP with .dts files
   - locking fix from preempt_rt patchset
   - include DT alias names in device uevent
   - Selftest bugfixes and improvements
   - New function for counting phandles stanzas in a property
   - constify argument to of_node_full_name()
   - Various bug fixes

  This tree did also contain a commit to use platform_device_add instead
  of open-coding the device add code, but it caused problems with amba
  devices and needed to be reverted."

* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux: (23 commits)
  Revert "of: use platform_device_add"
  kbuild: limit dtc+cpp include path
  gpio: Make of_count_named_gpios() use new of_count_phandle_with_args()
  of: Create function for counting number of phandles in a property
  of/base: Clean up exit paths for of_parse_phandle_with_args()
  of/selftest: Use selftest() macro throughout
  of/selftest: Fix GPIOs selftest to cover the 7th case
  of: fix recursive locking in of_get_next_available_child()
  documentation/devicetree: Fix a typo in exynos-dw-mshc.txt
  OF: convert devtree lock from rw_lock to raw spinlock
  of/exynos_g2d: Add Bindings for exynos G2D driver
  kbuild: create a rule to run the pre-processor on *.dts files
  input: Extend matrix-keypad device tree binding
  devicetree: Move NS2 LEDs binding into LEDs directory
  of: use platform_device_add
  powerpc/5200: Fix size to request_mem_region() call
  documentation/devicetree: Fix typos
  of: add 'const' to of_node_full_name parameter
  of: Output devicetree alias names in uevent
  DT: add vendor prefixes for Renesas and Toshiba
  ...
2013-02-20 11:04:46 -08:00
Linus Torvalds
1eaec8212e Merge branch 'for-3.9-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue [delayed_]work_pending() cleanups from Tejun Heo:
 "This is part of on-going cleanups to remove / minimize usages of
  workqueue interfaces which are deprecated and/or misleading.

  This round drops a number of usages of [delayed_]work_pending(), which
  are dangerous as they lack any form of synchronization and thus often
  lead to buggy / unnecessary code.  There are a couple legitimate use
  cases in kernel.  Hopefully, they can be converted and
  [delayed_]work_pending() can be removed completely.  Even if not,
  removing most of misuses should make it more difficult to find
  examples of misuses and thus slow down growth of them.

  These changes are independent from other workqueue changes."

* 'for-3.9-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  wimax/i2400m: fix i2400m->wake_tx_skb handling
  kprobes: fix wait_for_kprobe_optimizer()
  ipw2x00: simplify scan_event handling
  video/exynos: don't use [delayed_]work_pending()
  tty/max3100: don't use [delayed_]work_pending()
  x86/mce: don't use [delayed_]work_pending()
  rfkill: don't use [delayed_]work_pending()
  wl1251: don't use [delayed_]work_pending()
  thinkpad_acpi: don't use [delayed_]work_pending()
  mwifiex: don't use [delayed_]work_pending()
  sja1000: don't use [delayed_]work_pending()
2013-02-19 21:58:52 -08:00
John W. Linville
0b7164458f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2013-02-19 14:56:34 -05:00
Eric Dumazet
303c07db48 ppp: set qdisc_tx_busylock to avoid LOCKDEP splat
If a qdisc is installed on a ppp device, its possible to get
a lockdep splat under stress, because nested dev_queue_xmit() can
lock busylock a second time (on a different device, so its a false
positive)

Avoid this problem using a distinct lock_class_key for ppp
devices.

Reported-by: Yanko Kaneti <yaneti@declera.com>
Tested-by: Yanko Kaneti <yaneti@declera.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 14:33:55 -05:00
Huang, Xiong
7cb08d7f3a atl1c: restore buffer state
in the previous commit : f1f220ea1dda078, the BUSY state of buffer is wrongly
deleted. this patch just restore it.

Signed-off-by: xiong <xiong@qca.qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 13:18:13 -05:00
David S. Miller
629821d9b0 Revert "xen: netback: remove redundant xenvif_put"
This reverts commit d37204566a.

This change is incorrect, as per Jan Beulich:

====================
But this is wrong from all we can tell, we discussed this before
(Wei pointed to the discussion in an earlier reply). The core of
it is that the put here parallels the one in netbk_tx_err(), and
the one in xenvif_carrier_off() matches the get from
xenvif_connect() (which normally would be done on the path
coming through xenvif_disconnect()).
====================

And a previous discussion of this issue is at:

http://marc.info/?l=xen-devel&m=136084174026977&w=2

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 13:04:34 -05:00
Dan Williams
45d213f5f8 qmi_wwan, cdc-ether: add ADU960S
It advertises a standard CDC-ETHER interface, which actually should be
driven by qmi_wwan.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:51:10 -05:00
Doug Goldstein
b3f92b63c4 bonding: set sysfs device_type to 'bond'
Sets the sysfs device_type to 'bond' for udev. This allows udev rules to
be created for bond devices. This is similar to how other network
devices set their device_type.

Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:51:09 -05:00
nikolay@redhat.com
0896341a44 bonding: fix bond_release_all inconsistencies
This patch fixes the following inconsistencies in bond_release_all:
- IFF_BONDING flag is not stripped from slaves
- MTU is not restored
- no netdev notifiers are sent
Instead of trying to keep bond_release and bond_release_all in sync
I think we can re-use bond_release as the environment for calling it
is correct (RTNL is held). I have been running tests for the past
week and they came out successful. The only way for bond_release to fail
is for the slave to be attached in a different bond or to not be a slave
but that cannot happen as RTNL is held and no slave manipulations can be
achieved.

V2: As suggested bond_release is renamed to __bond_release_one with a
new parameter "all" introduced so to avoid calling unnecessary code while
destroying a bond, and a wrapper for it called bond_release is created
because of ndo_del_link. bond_release_all() is removed.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:51:09 -05:00
Hauke Mehrtens
7341a73c12 b44: use netdev_alloc_skb_ip_align()
Without this patch b44 always allocates the 2 bytes needed for aligned
access on every platform, now it uses netdev_alloc_skb_ip_align().

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:51:09 -05:00
Andrew Jones
d37204566a xen: netback: remove redundant xenvif_put
netbk_fatal_tx_err() calls xenvif_carrier_off(), which does
a xenvif_put(). As callers of netbk_fatal_tx_err should only
have one reference to the vif at this time, then the xenvif_put
in netbk_fatal_tx_err is one too many.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:51:09 -05:00
Fabio Estevam
07dcf8e9cc net: fec: Do a sanity check on the gpio number
Check whether the phy-reset GPIO is valid, prior to requesting it.

In the case a board does not provide a phy-reset GPIO, just returns immediately.

With such gpio validation in place, it is also safe to change from pr_debug to
dev_err in the case the gpio request fails.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:51:09 -05:00
nikolay@redhat.com
e0809dbc47 bonding: Fix initialize after use for 3ad machine state spinlock
The 3ad machine state spinlock can be used before it is inititialized
while doing bond_enslave() (and the port is being initialized) since
port->slave is set before the lock is prepared, thus causing soft
lock-ups and a multitude of other nasty bugs.

[ Rename __initialize_port_locks() variable name to 'slave' -DaveM ]

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:51:08 -05:00
nikolay@redhat.com
b59340c2c0 bonding: Fix race condition between bond_enslave() and bond_3ad_update_lacp_rate()
port->slave can be NULL since it's being initialized in bond_enslave
thus dereferencing a NULL pointer in bond_3ad_update_lacp_rate()
Also fix a minor bug, which could cause a port not to have
AD_STATE_LACP_TIMEOUT since there's no sync between
bond_3ad_update_lacp_rate() and bond_3ad_bind_slave(), by changing
the read_lock to a write_lock_bh in bond_3ad_update_lacp_rate().

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:51:08 -05:00
Larry Finger
ccae0e50c1 b43: Increase number of RX DMA slots
Bastian Bittorf reported that some of the silent freezes on a Linksys WRT54G
were due to overflow of the RX DMA ring buffer, which was created with 64
slots. That finding reminded me that I was seeing similar crashed on a netbook,
which also has a relatively slow processor. After increasing the number of
slots to 128, runs on the netbook that previously failed now worked; however,
I found that 109 slots had been used in one test. For that reason, the number
of slots is being increased to 256.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Bastian Bittorf <bittorf@bluebottle.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:51:08 -05:00
Jitendra Kalsaria
b0daa81b6a qlcnic: Bump up the version to 5.1.34
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:47:01 -05:00
Shahed Shaikh
53643a75b1 qlcnic: fix ping resumption to a VM after a live migration
Delete the MAC address of a VM, from the adapter's embedded switch,
after the VM had been migrated out of this adapter/server.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:47:01 -05:00
Shahed Shaikh
99e8587900 qlcnic: fix estimation of receive MSS in case of LRO for 83xx adapter
Set gso_size to MSS obtained from adapter to avoid incorrect estimation
of receive MSS, which would lead to delayed ACKs in some traffic patterns

Example:
Send two or three packets and wait for ack and only then send
remaining packets.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:47:01 -05:00
Himanshu Madhani
ac16670099 qlcnic: refactor Legacy interrupt handling for 83xx
o Cleanly seperate 83xx Legacy interrupt handling code from 82xx
o Update 83xx Legacy interrupt handling code to match with the spec

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:47:01 -05:00
Sucheta Chakraborty
7dd90cf171 qlcnic: fix mailbox interrupt.
o Config interrupt is not needed for mailbox interrupts.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:47:01 -05:00
Jitendra Kalsaria
114ef38ade qlcnic: fix unsupported CDRP command error message.
Added detailed error messages for FW CDRP command failure

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:47:01 -05:00
David S. Miller
6338a53a2b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net into net
Pull in 'net' to take in the bug fixes that didn't make it into
3.8-final.

Also, deal with the semantic conflict of the change made to
net/ipv6/xfrm6_policy.c   A missing rt6->n neighbour release
was added to 'net', but in 'net-next' we no longer cache the
neighbour entries in the ipv6 routes so that change is not
appropriate there.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 23:34:21 -05:00
Kumar Amit Mehta
b53cf458ea net: wireless: hostap: hostap_ap.c: Return -ENOMEM instead of -1 for if kmalloc() fails.
When memory allocation using, kmalloc() fails, report appropriate error value.

Signed-off-by: Kumar Amit Mehta <gmate.amit@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-18 15:30:40 -05:00
Kumar Amit Mehta
488ec87803 net: wireless: orinoco: orinoco_usb.c: fix DMA buffers on stack
This patch fixes an instance of DMA buffer on stack(being passed to
usb_control_msg) for the wireless USB version of the Agere Orinoco card driver.
It also fixes the missing audit for the return value of firmware download
routine. Found using smatch.

Signed-off-by: Kumar Amit Mehta <gmate.amit@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-18 15:30:40 -05:00