Commit Graph

44678 Commits

Author SHA1 Message Date
Schuyler Patton
3995d265b3 net: cpsw: fix cpdma rx descriptor leak on down interface
This patch fixes a CPDMA RX Descriptor leak that occurs after taking
the interface down when the CPSW is in Dual MAC mode. Previously
the CPSW_ALE port was left open up which causes packets to be received
and processed by the RX interrupt handler and were passed to the
non active network interface where they were ignored.

The fix is for the slave_stop function of the selected interface
to disable the respective CPSW_ALE Port from forwarding packets. This
blocks traffic from being received on the inactive interface.

Signed-off-by: Schuyler Patton <spatton@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:50:31 -05:00
Vasundhara Volam
ec495fac11 be2net: isolate TX workarounds not applicable to Skyhawk-R
Some of TX workarounds in be_xmit_workarounds() routine
are not applicable (and result in HW errors) to Skyhawk-R chip.
Isolate BE3-R/Lancer specific workarounds to a separate routine.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:48:11 -05:00
Vasundhara Volam
c912895106 be2net: Fix skb double free in be_xmit_wrokarounds() failure path
skb_padto(), skb_share_check() and __vlan_put_tag() routines free
skb when they return an error. This patch fixes be_xmit_workarounds()
to not free skb again in such cases.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:48:11 -05:00
Somnath kotur
7ad09458a5 be2net: clear promiscuous bits in adapter->flags while disabling promiscuous mode
We should clear promiscuous bits in adapter->flags while disabling promiscuous
mode. Else we will not put interface back into VLAN promisc mode if the vlans
already added exceeds the maximum limit.

Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:48:11 -05:00
Somnath Kotur
c502224efb be2net: Fix to reset transparent vlan tagging
For disabling transparent tagging issue SET_HSW_CONFIG with pvid_valid=1
and pvid=0xFFFF and not with the default pvid as this case would fail in Lancer.
Hence removing the get_hsw_config call from be_vf_setup() as it's
only use of getting default pvid is no longer needed.

Also do proper housekeeping only if the FW command succeeds.

Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:48:11 -05:00
Dan Carpenter
e842b068bf qlcnic: dcb: a couple off by one bugs
The ->tc_cfg[] array has QLC_DCB_MAX_TC (8) elements so the check is
off by one.  These functions are always called with valid values though
so it doesn't affect how the code works.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-03 15:38:12 -05:00
Gerry Demaret
635d61a373 USB AX88179/178A: Support D-Link DUB-1312
Add the USB device ID for the D-Link DUB-1312 USB 3.0 to Gigabit Ethernet
Adapter to the AX88179/178A driver.

Signed-off-by: Gerry Demaret <gerry@tigron.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-02 20:29:30 -05:00
Hauke Mehrtens
1d3f41ea0e b44: always set duplex mode why phy changes
Without this patch b44_check_phy() was called when the phy called the
adjust callback. This method only change the mac duplex mode when the
carrier was off. When the phy changed the duplex mode after the carrier
was on the mac was not changed. This happened when an external phy was
used.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-02 19:05:25 -05:00
Hauke Mehrtens
25d54fe565 b44: add calls to phy_{start,stop}
When support for external phys was added to b44, the calls to start and
stop the phy were missing in the mac driver. This adds the calls to
phy_start() and phy_stop().

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-02 19:05:25 -05:00
Ivan Vecera
877767dccf bna: fix vlan tag stripping and implement its toggling
The recent commit "fe1624c bna: RX Filter Enhancements" disables
VLAN tag stripping if the NIC is in promiscuous mode. This causes
__vlan_hwaccel_put_tag() is called when the stripping is disabled.
Because of this VLAN over bna does not work and causes BUGs in conjunction
with openvswitch like this:
Reviewed-by: Jiri Pirko <jiri@resnulli.us>

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-28 17:17:38 -05:00
Michael Chan
d7b95315cc tg3: Don't check undefined error bits in RXBD
Redefine the RXD_ERR_MASK to include only relevant error bits. This fixes
a customer reported issue of randomly dropping packets on the 5719.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-28 17:16:16 -05:00
David S. Miller
352063c839 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:

====================
Regarding the mac80211 bits, Johannes says:

"This time, I have a fix from Arik for scheduled scan recovery (something
that only recently went into the tree), a memory leak fix from Eytan and
a small regulatory bugfix from Inbal. The EAPOL change from Felix makes
rekeying more stable while lots of traffic is flowing, and there's
Emmanuel's and my fixes for a race in the code handling powersaving
clients."

Regarding the NFC bits, Samuel says:

"We only have one candidate for 3.14 fixes, and this is a NCI NULL
pointer dereference introduced during the 3.14 merge window."

Regarding the iwlwifi bits, Emmanuel says:

"This should fix an issue raised in iwldvm when we have lots of
association failures.  There is a bugzilla for this bug - it hasn't
been validated by the user, but I hope it will do the trick."

Beyond that...

Amitkumar Karwar brings two mwifiex fixes, one to avoid a NULL pointer
dereference and another to address an improperly timed interrupt.

Arend van Spriel gives us a brcmfmac fix to avoid a crash during
scatter-gather packet transfers.

Avinash Patila offers an mwifiex to avoid an invalid memory access
when a device is removed.

Bing Zhao delivers a simple fix to avoid a naming conflict between
libertas and mwifiex.

Felix Fietkau provides a trio of ath9k fixes that properly account
for sequence numbering in ps-poll frames, reduce the rate for false
positives during baseband hang detection, and fix a regression related
to rx descriptor handling.

James Cameron shows us a libertas fix to ignore zero-length IEs when
processing scan results.

Kirill Tkhai brings a hostap fix to avoid prematurely freeing a timer.

Stanislaw Gruszka fixes an ath9k locking problem.

Sujith Manoharan addresses ETSI compliance for a device handled by
ath9k by adjusting the minimum CCA power threshold values.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-27 17:42:43 -05:00
Yuval Mintz
babe723d6d bnx2x: Add missing bit in default Tx switching
Commit c14db2025 "bnx2x: Correct default Tx switching behaviour" supposedly
changed the default Tx switching behaviour, but was missing the fastpath change
required for FW to pass packets from PFs to VFs.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-27 17:16:28 -05:00
John W. Linville
8e2a89c515 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2014-02-27 15:05:51 -05:00
Jiri Bohac
09a89c219b bonding: disallow enslaving a bond to itself
Enslaving a bond to itself leads to an endless loop and hangs the kernel.

Signed-off-by: Jiri Bohac <jbohac@suse.cz>
Tested-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-26 22:37:12 -05:00
Nikolay Aleksandrov
ee6154e11e bonding: fix a div error caused by the slave release path
There's a bug in the slave release function which leads the transmit
functions which use the bond->slave_cnt to a div by 0 because we might
just have released our last slave and made slave_cnt == 0 but at the same
time we may have a transmitter after the check for an empty list which will
fetch it and use it in the slave id calculation.
Fix it by moving the slave_cnt after synchronize_rcu so if this was our
last slave any new transmitters will see an empty slave list which is
checked after rcu lock but before calling the mode transmit functions
which rely on bond->slave_cnt.

Fixes: 278b208375 ("bonding: initial RCU conversion")

CC: Veaceslav Falico <vfalico@redhat.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Jay Vosburgh <fubar@us.ibm.com>
CC: David S. Miller <davem@davemloft.net>

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-26 17:09:09 -05:00
Freddy Xin
e5fe0cd442 AX88179_178A: Add VID:DID for Lenovo OneLinkDock Gigabit LAN
Add VID:DID for Lenovo OneLinkDock Gigabit LAN

Signed-off-by: Freddy Xin <freddy@asix.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-26 17:01:56 -05:00
dingtianhong
b0929915e0 bonding: Fix RTNL: assertion failed at net/core/rtnetlink.c for ab arp monitor
Veaceslav has reported and fix this problem by commit f2ebd477f1
(bonding: restructure locking of bond_ab_arp_probe()). According Jay's
opinion, the current solution is not very well, because the notification
is to indicate that the interface has actually changed state in a meaningful
way, but these calls in the ab ARP monitor are internal settings of the flags
to allow the ARP monitor to search for a slave to become active when there are
no active slaves. The flag setting to active or backup is to permit the ARP
monitor's response logic to do the right thing when deciding if the test
slave (current_arp_slave) is up or not.

So the best way to fix the problem is that we should not send a notification
when the slave is in testing state, and check the state at the end of the
monitor, if the slave's state recover, avoid to send pointless notification
twice. And RTNL is really a big lock, hold it regardless the slave's state
changed or not when the current_active_slave is null will loss performance
(every 100ms), so we should hold it only when the slave's state changed and
need to notify.

I revert the old commit and add new modifications.

Cc: Jay Vosburgh <fubar@us.ibm.com>
Cc: Veaceslav Falico <vfalico@redhat.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-26 16:02:56 -05:00
dingtianhong
5e5b066535 bonding: Fix RTNL: assertion failed at net/core/rtnetlink.c for 802.3ad mode
The problem was introduced by the commit 1d3ee88ae0
(bonding: add netlink attributes to slave link dev).
The bond_set_active_slave() and bond_set_backup_slave()
will use rtmsg_ifinfo to send slave's states, so these
two functions should be called in RTNL.

In 802.3ad mode, acquiring RTNL for the __enable_port and
__disable_port cases is difficult, as those calls generally
already hold the state machine lock, and cannot unconditionally
call rtnl_lock because either they already hold RTNL (for calls
via bond_3ad_unbind_slave) or due to the potential for deadlock
with bond_3ad_adapter_speed_changed, bond_3ad_adapter_duplex_changed,
bond_3ad_link_change, or bond_3ad_update_lacp_rate.  All four of
those are called with RTNL held, and acquire the state machine lock
second.  The calling contexts for __enable_port and __disable_port
already hold the state machine lock, and may or may not need RTNL.

According to the Jay's opinion, I don't think it is a problem that
the slave don't send notify message synchronously when the status
changed, normally the state machine is running every 100 ms, send
the notify message at the end of the state machine if the slave's
state changed should be better.

I fix the problem through these steps:

1). add a new function bond_set_slave_state() which could change
    the slave's state and call rtmsg_ifinfo() according to the input
    parameters called notify.

2). Add a new slave parameter which called should_notify, if the slave's state
    changed and don't notify yet, the parameter will be set to 1, and then if
    the slave's state changed again, the param will be set to 0, it indicate that
    the slave's state has been restored, no need to notify any one.

3). the __enable_port and __disable_port should not call rtmsg_ifinfo
    in the state machine lock, any change in the state of slave could
    set a flag in the slave, it will indicated that an rtmsg_ifinfo
    should be called at the end of the state machine.

Cc: Jay Vosburgh <fubar@us.ibm.com>
Cc: Veaceslav Falico <vfalico@redhat.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-26 16:02:56 -05:00
Edward Cree
8f355e5cee sfc: check for NULL efx->ptp_data in efx_ptp_event
If we receive a PTP event from the NIC when we haven't set up PTP state
in the driver, we attempt to read through a NULL pointer efx->ptp_data,
triggering a panic.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Acked-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-26 15:22:02 -05:00
Cristian Bercaru
a4572e0c23 phy: unmask link partner capabilities
Masking the link partner's capabilities with local capabilities can be
misleading in autonegotiation scenarios such as PAUSE frame
autonegotiation.
This patch calculates the join between the local capabilities and the
link parner capabilities, when it determines the speed and duplex
settings, but does not mask any of the link partner capabilities when
it calculates PAUSE frame settings.

Signed-off-by: Cristian Bercaru <cristian.bercaru@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-25 18:39:09 -05:00
Thadeu Lima de Souza Cascardo
687d705c03 net/cxgb4: use remove handler as shutdown handler
Without a shutdown handler, T4 cards behave very badly after a kexec.
Some firmware calls return errors indicating allocation failures, for
example. This is probably because thouse resources were not released by
a BYE message to the firmware, for example.

Using the remove handler guarantees we will use a well tested path.

With this patch I applied, I managed to use kexec multiple times and
probe and iSCSI login worked every time.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-25 18:35:13 -05:00
Rajesh Borundia
42beb3f283 qlcnic: Fix number of rings when we fall back from msix to legacy.
o Driver was not re-setting sds ring count to 1 after failing
   to allocate msi-x interrupts.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-25 18:32:39 -05:00
Sucheta Chakraborty
46428228b5 qlcnic: Allow any VLAN to be configured from VF.
o This patch reverts commit 1414abea04
  (qlcnic: Restrict VF from configuring any VLAN mode.)
  This will allow same multicast address to be used with any VLAN
  instead of programming seperate (MAC, VLAN) tuples in adapter.
  This will help save some multicast filters.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-25 18:32:39 -05:00
Shahed Shaikh
b7520d2b59 qlcnic: Fix usage of use_msi and use_msi_x module parameters
Once interrupts are enabled, instead of using module parameters,
use flags (QLCNIC_MSI_ENABLED and QLCNIC_MSIX_ENABLED) set by driver
to check interrupt mode.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-25 18:32:39 -05:00
Shahed Shaikh
fc49beaee2 qlcnic: Fix function return error check
Driver was treating -ve return value as success in case of
qlcnic_enable_msi_legacy() failure

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-25 18:32:39 -05:00
Amir Vadai
169a1d85d0 net,IB/mlx: Bump all Mellanox driver versions
Bump all Mellanox driver versions.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-25 17:34:44 -05:00
Felix Fietkau
b7b146c9c9 ath9k: fix invalid descriptor discarding
Only set sc->rx.discard_next to rx_stats->rs_more when actually
discarding the current descriptor.

Also, fix a detection of broken descriptors:
First the code checks if the current descriptor is not done.
Then it checks if the next descriptor is done.
Add a check that afterwards checks the first descriptor again, because
it might have been completed in the mean time.

This fixes a regression introduced in
commit 723e711356
"ath9k: fix handling of broken descriptors"

Cc: stable@vger.kernel.org
Reported-by: Marco André Dinis <marcoandredinis@gmail.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-25 14:54:11 -05:00
Felix Fietkau
d31a36a6d8 ath9k: reduce baseband hang detection false positive rate
Check if the baseband state remains stable, and add a small delay
between register reads.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-25 14:54:11 -05:00
Kyle McMartin
340fea3d7f r8169: initialize rtl8169_stats seqlock
Boris reports he's seeing:
> [    9.195943] INFO: trying to register non-static key.
> [    9.196031] the code is fine but needs lockdep annotation.
> [    9.196031] turning off the locking correctness validator.
> [    9.196031] CPU: 1 PID: 933 Comm: modprobe Not tainted 3.14.0-rc4+ #1
with the r8169 driver.

These are occuring because the seqcount embedded in u64_stats_sync on
32-bit SMP is uninitialized which is making lockdep unhappy.

Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-24 20:32:23 -05:00
Tobias Klauser
7262b7b26d net: stmmac: Check return value of alloc_dma_desc_resources()
alloc_dma_desc_resources() returns an error value and the next line
actually checks for it, so assign the return value properly.

Found by the coverity scanner.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-24 18:58:10 -05:00
Jason Wang
0e7ede80d9 virtio-net: alloc big buffers also when guest can receive UFO
We should alloc big buffers also when guest can receive UFO
packets to let the big packets fit into guest rx buffer.

Fixes 5c5167515d
(virtio-net: Allow UFO feature to be set and advertised.)

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-24 18:19:52 -05:00
Felix Fietkau
558ff225de ath9k: fix ps-poll responses under a-mpdu sessions
When passing tx frames to the U-APSD queue for powersave poll responses,
the ath_atx_tid pointer needs to be passed to ath_tx_setup_buffer for
proper sequence number accounting.

This fixes high latency and connection stability issues with ath9k
running as AP and a few kinds of mobile phones as client, when PS-Poll
is heavily used

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-24 14:55:27 -05:00
Bing Zhao
e4ceb0f40d mwifiex: rename usb driver name registerring to usb core
Both libertas USB driver and mwifiex_usb driver are registerring
with name 'usb8xxx'. The following conflict happens while trying
to load both drivers.

[6.211307] Error: Driver 'usb8xxx' is already registered...
[6.217261] mwifiex_usb: Driver register failed!

Fix it by renaming mwifiex_usb driver's name.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-24 14:55:27 -05:00
John W. Linville
694d82d913 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes 2014-02-24 14:41:35 -05:00
Sujith Manoharan
b3050248c1 ath9k: Fix ETSI compliance for AR9462 2.0
The minimum CCA power threshold values have to be adjusted
for existing cards to be in compliance with new regulations.
Newer cards will make use of the values obtained from EEPROM,
support for this was added earlier. To make sure that cards
that are already in use and don't have proper values in EEPROM,
do not violate regulations, use the initvals instead.

Cc: stable@vger.kernel.org
Reported-by: Jeang Daniel <dyjeong@qca.qualcomm.com>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-20 15:53:20 -05:00
Arend van Spriel
1eb4301867 brcmfmac: fix txglomming scatter-gather packet transfers
The driver concatenates multiple packets in one MMC transfer. For
scatter-gather to work the total length need to be multiple of 512
bytes. A pre-allocated buffer was used to add padding to accomplish
that. However, the length was not properly set and it was freed after
the first transfer causing a crash.

Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-20 15:53:20 -05:00
Stanislaw Gruszka
21f8aaee0c ath9k: protect tid->sched check
We check tid->sched without a lock taken on ath_tx_aggr_sleep(). That
is race condition which can result of doing list_del(&tid->list) twice
(second time with poisoned list node) and cause crash like shown below:

[424271.637220] BUG: unable to handle kernel paging request at 00100104
[424271.637328] IP: [<f90fc072>] ath_tx_aggr_sleep+0x62/0xe0 [ath9k]
...
[424271.639953] Call Trace:
[424271.639998]  [<f90f6900>] ? ath9k_get_survey+0x110/0x110 [ath9k]
[424271.640083]  [<f90f6942>] ath9k_sta_notify+0x42/0x50 [ath9k]
[424271.640177]  [<f809cfef>] sta_ps_start+0x8f/0x1c0 [mac80211]
[424271.640258]  [<c10f730e>] ? free_compound_page+0x2e/0x40
[424271.640346]  [<f809e915>] ieee80211_rx_handlers+0x9d5/0x2340 [mac80211]
[424271.640437]  [<c112f048>] ? kmem_cache_free+0x1d8/0x1f0
[424271.640510]  [<c1345a84>] ? kfree_skbmem+0x34/0x90
[424271.640578]  [<c10fc23c>] ? put_page+0x2c/0x40
[424271.640640]  [<c1345a84>] ? kfree_skbmem+0x34/0x90
[424271.640706]  [<c1345a84>] ? kfree_skbmem+0x34/0x90
[424271.640787]  [<f809dde3>] ? ieee80211_rx_handlers_result+0x73/0x1d0 [mac80211]
[424271.640897]  [<f80a07a0>] ieee80211_prepare_and_rx_handle+0x520/0xad0 [mac80211]
[424271.641009]  [<f809e22d>] ? ieee80211_rx_handlers+0x2ed/0x2340 [mac80211]
[424271.641104]  [<c13846ce>] ? ip_output+0x7e/0xd0
[424271.641182]  [<f80a1057>] ieee80211_rx+0x307/0x7c0 [mac80211]
[424271.641266]  [<f90fa6ee>] ath_rx_tasklet+0x88e/0xf70 [ath9k]
[424271.641358]  [<f80a0f2c>] ? ieee80211_rx+0x1dc/0x7c0 [mac80211]
[424271.641445]  [<f90f82db>] ath9k_tasklet+0xcb/0x130 [ath9k]

Bug report:
https://bugzilla.kernel.org/show_bug.cgi?id=70551

Reported-and-tested-by: Max Sydorenko <maxim.stargazer@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-20 15:53:20 -05:00
Amitkumar Karwar
1c97560f6d mwifiex: fix cmd and Tx data timeout issue for PCIe cards
We are sending sleep confirm done interrupt in the middle of
sleep handshake. There is a corner case when Tx done interrupt
is received from firmware during sleep handshake due to which
host and firmware power states go out of sync causing cmd and
Tx data timeout problem.

Hence sleep confirm done interrupt is sent at the end of sleep
handshake to fix the problem.

Cc: <stable@vger.kernel.org> # 3.10+
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-20 15:53:20 -05:00
Amitkumar Karwar
bb8e6a1ee8 mwifiex: add NULL check for PCIe Rx skb
We may get a NULL pointer here if skb allocation for Rx packet
was failed earlier.

Cc: <stable@vger.kernel.org> # 3.9+
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-20 15:53:20 -05:00
Avinash Patil
4f7ba43220 mwifiex: clean pcie ring only when device is present
Write io memory to clean PCIe buffer only when PCIe device is
present else this results into crash because of invalid memory
access.

Cc: <stable@vger.kernel.org> # 3.9+
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>
2014-02-20 15:51:07 -05:00
James Cameron
95320774fa libertas: fix scan result loss if SSID IE len 0
Scan results from Marvell 8388 and 8686 have probe responses from
hidden APs and OLPC XO-1 mesh with a zero length SSID IE.

Bug in lbs_ret_scan discarded any remaining BSS in scan response,
leading to user not seeing APs in dense environments.

With LBS_DEB_SCAN, dmesg shows

libertas scan: scan response: 5 BSSs (419 bytes); resp size 474 bytes
libertas scan: scan: 00:1a:2b:84:de:e8, capa 0401, chan  1, qz, -51 dBm
libertas scan: scan: 5c:63:bf:d8:eb:0c, capa 0411, chan  1, qw129, -23 dBm
libertas scan: scan response: invalid IE fmt

With LBS_DEB_HEX, dmesg shows valid BSS in scan response were not
processed.

Change is to ignore zero length IE and continue processing.

Fixes OLPC 12757, http://dev.laptop.org/ticket/12757

Signed-off-by: James Cameron <quozl@laptop.org>
Reported-by: T Gillett <tgillett@gmail.com>
Tested-by: T Gillett <tgillett@gmail.com>
CC: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-20 15:49:07 -05:00
Kirill Tkhai
72471c0d31 hostap: Do not free priv until timer handler has actually stopped using it
Function del_timer() does not guarantee that timer was really deleted.
If the timer handler is beeing executed at the moment, the function
does nothing. So, it's possible to use already freed memory in the handler:

[ref: Documentation/DocBook/kernel-locking.tmpl]

This was found using grep and compile-tested only. Please, consider
applying or something similar to it.

Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
CC: Jouni Malinen <j@w1.fi>
CC: John W. Linville <linville@tuxdriver.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-20 15:49:07 -05:00
Duan Fugang-B38611
fb8ef78868 net: fec: fix potential issue to avoid fec interrupt lost and crc error
The current flow: Set TX BD ready, and then set "INT" and "PINS" bit to
enable tx interrupt generation and crc checksum.

There has potential issue like as:
CPU			fec uDMA
Set tx ready bit
			uDMA start the BD transmission
Set "INT" bit
Set "PINS" bit
...

Above situation cause fec tx interrupt lost and fec MAC don't do
CRC checksum. The patch fix the potential issue.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Acked-by: Frank Li <Frank.li@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-20 13:16:13 -05:00
Emmanuel Grumbach
ec6f678c74 iwlwifi: dvm: clear IWL_STA_UCODE_INPROGRESS when assoc fails
We set IWL_STA_UCODE_INPROGRESS flag when we add a station
and clear it when we send the LQ command for it. But the LQ
command is sent only when the association succeeds.
If the association doesn't succeed, we would leave this flag
set and that wouldn't indicate the station entry as vacant.

This probably fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=1065663

Cc: <stable@vger.kernel.org>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-02-20 19:16:27 +02:00
Fernando Luis Vazquez Cao
6671b2240c tun: remove bogus hardware vlan acceleration flags from vlan_features
Even though only the outer vlan tag can be HW accelerated in the transmission
path, in the TUN/TAP driver vlan_features mirrors hw_features, which happens
to have the NETIF_F_HW_VLAN_?TAG_TX flags set. Because of this, during packet
tranmisssion through a stacked vlan device dev_hard_start_xmit, (incorrectly)
assuming that the vlan device supports hardware vlan acceleration, does not
add the vlan header to the skb payload and the inner vlan tags are lost
(vlan_tci contains the outer vlan tag when userspace reads the packet from
the tap device).

Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-20 02:15:38 -05:00
Toshiaki Makita
8d0d21f405 veth: Fix vlan_features so as to be able to use stacked vlan interfaces
Even if we create a stacked vlan interface such as veth0.10.20, it sends
single tagged frames (tagged with only vid 10).
Because vlan_features of a veth interface has the
NETIF_F_HW_VLAN_[CTAG/STAG]_TX bits, veth0.10 also has that feature, so
dev_hard_start_xmit(veth0.10) doesn't call __vlan_put_tag() and
vlan_dev_hard_start_xmit(veth0.10) overwrites vlan_tci.
This prevents us from using a combination of 802.1ad and 802.1Q
in containers, etc.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Acked-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-20 02:15:38 -05:00
Wei Liu
d554f73df6 xen-netfront: reset skb network header before checksum
In ed1f50c3a ("net: add skb_checksum_setup") we introduced some checksum
functions in core driver. Subsequent change b5cf66cd1 ("xen-netfront:
use new skb_checksum_setup function") made use of those functions to
replace its own implementation.

However with that change netfront is broken. It sees a lot of checksum
error. That's because its own implementation of checksum function was a
bit hacky (dereferencing skb->data directly) while the new function was
implemented using ip_hdr(). The network header is not reset before skb
is passed to the new function. When the new function tries to do its
job, it's confused and reports error.

The fix is simple, we need to reset network header before passing skb to
checksum function. Netback is not affected as it already does the right
thing.

Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Paul Durrant <paul.durrant@citrix.com>
Tested-By: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-19 16:52:51 -05:00
Linus Torvalds
b0d3f6d47e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) kvaser CAN driver has fixed limits of some of it's table, validate
    that we won't exceed those limits at probe time.  Fix from Olivier
    Sobrie.

 2) Fix rtl8192ce disabling interrupts for too long, from Olivier
    Langlois.

 3) Fix botched shift in ath5k driver, from Dan Carpenter.

 4) Fix corruption of deferred packets in TIPC, from Erik Hugne.

 5) Fix newlink error path in macvlan driver, from Cong Wang.

 6) Fix netpoll deadlock in bonding, from Ding Tianhong.

 7) Handle GSO packets properly in forwarding path when fragmentation is
    necessary on egress, from Florian Westphal.

 8) Fix axienet build errors, from Michal Simek.

 9) Fix refcounting of ubufs on tx in vhost net driver, from Michael S
    Tsirkin.

10) Carrier status isn't set properly in hyperv driver, from Haiyang
    Zhang.

11) Missing pci_disable_device() in tulip_remove_one), from Ingo Molnar.

12) AF_PACKET qdisc bypass mode doesn't adhere to driver provided TX
    queue selection method.  Add a fallback method mechanism to fix this
    bug, from Daniel Borkmann.

13) Fix regression in link local route handling on GRE tunnels, from
    Nicolas Dichtel.

14) Bonding can assign dup aggregator IDs in some sequences of
    configuration, fix by making the allocation counter per-bond instead
    of global.  From Jiri Bohac.

15) sctp_connectx() needs compat translations, from Daniel Borkmann.

16) Fix of_mdio PHY interrupt parsing, from Ben Dooks

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (62 commits)
  MAINTAINERS: add entry for the PHY library
  of_mdio: fix phy interrupt passing
  net: ethernet: update dependency and help text of mvneta
  NET: fec: only enable napi if we are successful
  af_packet: remove a stray tab in packet_set_ring()
  net: sctp: fix sctp_connectx abi for ia32 emulation/compat mode
  ipv4: fix counter in_slow_tot
  irtty-sir.c: Do not set_termios() on irtty_close()
  bonding: 802.3ad: make aggregator_identifier bond-private
  usbnet: remove generic hard_header_len check
  gre: add link local route when local addr is any
  batman-adv: fix potential kernel paging error for unicast transmissions
  batman-adv: avoid double free when orig_node initialization fails
  batman-adv: free skb on TVLV parsing success
  batman-adv: fix TT CRC computation by ensuring byte order
  batman-adv: fix potential orig_node reference leak
  batman-adv: avoid potential race condition when adding a new neighbour
  batman-adv: properly check pskb_may_pull return value
  batman-adv: release vlan object after checking the CRC
  batman-adv: fix TT-TVLV parsing on OGM reception
  ...
2014-02-18 15:52:43 -08:00
Thomas Petazzoni
4b636b535d net: ethernet: update dependency and help text of mvneta
With the introduction of the support for Armada 375 and Armada 38x,
the hidden Kconfig option MACH_ARMADA_370_XP is being renamed to
MACH_MVEBU_V7. Therefore, the dependency that was used for the mvneta
driver can no longer work. This commit replaces this dependency by a
dependency on PLAT_ORION, which is used similarly for the mv643xx_eth
driver.

In addition to this, it takes this opportunity to adjust the
description and help text to indicate that the driver can is also used
for Armada 38x. Note that Armada 375 cannot use this driver as it has
a completely different networking unit, which will require a separate
driver.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18 18:09:02 -05:00