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Eric Dumazet 0c5ddb51e8 net/mlx4_en: initialize cmd.context_lock spinlock earlier 
Maciej Żenczykowski reported lockdep warning a spinlock
was not registered before being held in mlx4_cmd_wake_completions()

cmd.context_lock initialization is not at the right place.

1) mlx4_cmd_use_events() can be called multiple times.
   Calling spin_lock_init() on a live spinlock can lead
   to hangs.

2) mlx4_cmd_wake_completions() can be called while lock
   has not been initialized.
   Lockdep complains, and current logic is not race prone.

It seems better to move the initialization earlier in
mlx4_load_one()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Maciej Żenczykowski <maze@google.com>
Cc: Eugenia Emantayev <eugenia@mellanox.com>
Cc: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 12:16:30 -07:00
..
3com
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
8390
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
adaptec
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
adi
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
aeroflex
aeroflex/greth: fix warning about unused variable
2016-05-20 18:33:37 -07:00
agere
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
allwinner
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
alteon
…
altera
net: eth: altera: do not free array priv->mdio->irq
2016-03-06 22:59:18 -05:00
amd
net: au1000_eth: fix PHY detection
2016-06-10 23:34:42 -07:00
apm
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-05-15 13:32:48 -04:00
apple
…
arc
net: arc: trivial: Replace comma with a semicolon
2016-05-25 22:13:15 -07:00
atheros
net: alx: Work around the DMA RX overflow issue
2016-06-14 15:30:50 -04:00
aurora
net: ethernet: nb8800: support fixed-link DT node
2016-02-24 11:32:11 -05:00
broadcom
bnxt_en: Simplify VLAN receive logic.
2016-06-07 16:02:03 -07:00
brocade
bna: fix list corruption
2016-03-01 15:19:43 -05:00
cadence
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-05-04 00:52:29 -04:00
calxeda
…
cavium
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-05-20 20:01:26 -07:00
chelsio
cxgb4: Add device id of T540-BT adapter
2016-06-08 10:23:46 -07:00
cirrus
…
cisco
enic: set netdev->vlan_features
2016-04-18 14:53:21 -04:00
davicom
drivers: net: Don't print unpopulated net_device name
2016-05-17 12:30:19 -04:00
dec
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
dlink
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
emulex
benet: be_resume needs to protect be_open with rtnl_lock
2016-04-21 15:35:07 -04:00
ezchip
net: nps_enet: Disable interrupts before napi reschedule
2016-05-29 22:35:21 -07:00
faraday
net: ethernet: ftgmac100: use phy_ethtool_{get|set}_link_ksettings
2016-05-16 21:51:41 -04:00
freescale
net: fec: fix spelling mistakes and add missing newline
2016-06-07 16:15:59 -07:00
fujitsu
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
hisilicon
net: hns: avoid null pointer dereference
2016-05-23 13:54:03 -07:00
hp
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
i825xx
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
ibm
net: ehea: avoid null pointer dereference
2016-05-19 11:25:30 -07:00
intel
intel: Add support for IPv6 IP-in-IP offload
2016-05-20 19:25:52 -04:00
marvell
net: mvneta: Fix lacking spinlock initialization
2016-05-25 12:35:08 -07:00
mediatek
net: mediatek: remove superfluous queue wake up call
2016-06-10 23:29:30 -07:00
mellanox
net/mlx4_en: initialize cmd.context_lock spinlock earlier
2016-06-15 12:16:30 -07:00
micrel
drivers: net: Don't print unpopulated net_device name
2016-05-17 12:30:19 -04:00
microchip
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
moxa
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
myricom
myri10ge: fix sleeping with bh disabled
2016-04-28 14:21:14 -04:00
natsemi
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
neterion
drivers: net: remove NETDEV_TX_LOCKED
2016-04-26 15:53:05 -04:00
netronome
nfp: add async reconfiguration mechanism
2016-04-16 22:34:40 -04:00
nuvoton
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
nvidia
forcedeth: Use setup_timer()
2016-02-25 16:51:05 -05:00
nxp
…
oki-semi
pch_gbe: replace private tx ring lock with common netif_tx_lock
2016-04-28 17:19:58 -04:00
packetengines
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
pasemi
pasemi_mac: Replace LRO with GRO
2016-02-17 16:15:45 -05:00
qlogic
qed: fix qed_fill_link() error handling
2016-06-01 22:04:54 -07:00
qualcomm
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
rdc
…
realtek
r8169: default to 64-bit DMA on recent PCIe chips
2016-05-17 14:31:09 -04:00
renesas
ravb: Add missing free_irq() calls to ravb_close()
2016-05-17 12:26:56 -04:00
rocker
switchdev: pass pointer to fib_info instead of copy
2016-05-17 13:58:49 -04:00
samsung
net: sxgbe: fix error paths in sxgbe_platform_probe()
2016-03-27 22:39:22 -04:00
seeq
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
sfc
sfc: report supported link speeds on SFP connections
2016-06-08 11:18:45 -07:00
sgi
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
silan
…
sis
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
smsc
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
stmicro
stmmac: fix parameter to dwmac4_set_umac_addr()
2016-06-09 23:39:03 -07:00
sun
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
synopsys
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
tehuti
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
ti
net: ethernet: ti: cpsw: use destroy ctlr to destroy channels
2016-06-12 22:01:14 -04:00
tile
drivers: fix dev->trans_start removal fallout
2016-05-04 17:07:14 -04:00
toshiba
ps3_gelic: use kmemdup
2016-05-20 19:50:07 -04:00
tundra
net: tsi108: use NULL for pointer-typed argument
2016-04-26 01:10:26 -04:00
via
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
wiznet
net: w5100-spi: add support to specify MAC address by device tree
2016-05-16 13:55:49 -04:00
xilinx
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
xircom
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
xscale
…
dnet.c
…
dnet.h
…
ec_bhf.c
…
ethoc.c
net/ethoc: fix null dereference on error exit path
2016-06-01 22:02:01 -07:00
fealnx.c
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
jme.c
drivers/net/ethernet/jme.c: Deinline jme_reset_mac_processor, save 2816 bytes
2016-04-13 22:57:00 -04:00
jme.h
…
Kconfig
netdev: Move octeon/octeon_mgmt driver to cavium directory.
2016-03-18 18:25:30 -04:00
korina.c
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
lantiq_etop.c
treewide: replace dev->trans_start update with helper
2016-05-04 14:16:49 -04:00
Makefile
netdev: Move octeon/octeon_mgmt driver to cavium directory.
2016-03-18 18:25:30 -04:00
netx-eth.c
drivers: net: Don't print unpopulated net_device name
2016-05-17 12:30:19 -04:00