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android_kernel_oneplus_msm8998/drivers/net/ethernet
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Mitsuhiro Kimura 7fa2955ff7 sh_eth: Fix sleeping function called from invalid context 
This resolves the following bug which can be reproduced by building the
kernel with CONFIG_DEBUG_ATOMIC_SLEEP=y and reading network statistics
while the network interface is down.

e.g.:

ifconfig eth0 down
cat /sys/class/net/eth0/statistics/tx_errors

----
[ 1238.161349] BUG: sleeping function called from invalid context at drivers/base/power/runtime.c:952
[ 1238.188279] in_atomic(): 1, irqs_disabled(): 0, pid: 1388, name: cat
[ 1238.207425] CPU: 0 PID: 1388 Comm: cat Not tainted 3.10.31-ltsi-00046-gefa0b46 #1087
[ 1238.230737] Backtrace:
[ 1238.238123] [<c0012e64>] (dump_backtrace+0x0/0x10c) from [<c0013000>] (show_stack+0x18/0x1c)
[ 1238.263499]  r6:000003b8 r5:c06160c0 r4:c0669e00 r3:00404000
[ 1238.280583] [<c0012fe8>] (show_stack+0x0/0x1c) from [<c04515a4>] (dump_stack+0x20/0x28)
[ 1238.304631] [<c0451584>] (dump_stack+0x0/0x28) from [<c004970c>] (__might_sleep+0xf8/0x118)
[ 1238.329734] [<c0049614>] (__might_sleep+0x0/0x118) from [<c02465ac>] (__pm_runtime_resume+0x38/0x90)
[ 1238.357170]  r7:d616f000 r6:c049c458 r5:00000004 r4:d6a17210
[ 1238.374251] [<c0246574>] (__pm_runtime_resume+0x0/0x90) from [<c029b1c4>] (sh_eth_get_stats+0x44/0x280)
[ 1238.402468]  r7:d616f000 r6:c049c458 r5:d5c21000 r4:d5c21000
[ 1238.419552] [<c029b180>] (sh_eth_get_stats+0x0/0x280) from [<c03ae39c>] (dev_get_stats+0x54/0x88)
[ 1238.446204]  r5:d5c21000 r4:d5ed7e08
[ 1238.456980] [<c03ae348>] (dev_get_stats+0x0/0x88) from [<c03c677c>] (netstat_show.isra.15+0x54/0x9c)
[ 1238.484413]  r6:d5c21000 r5:d5c21238 r4:00000028 r3:00000001
[ 1238.501495] [<c03c6728>] (netstat_show.isra.15+0x0/0x9c) from [<c03c69b8>] (show_tx_errors+0x18/0x1c)
[ 1238.529196]  r7:d5f945d8 r6:d5f945c0 r5:c049716c r4:c0650e7c
[ 1238.546279] [<c03c69a0>] (show_tx_errors+0x0/0x1c) from [<c023963c>] (dev_attr_show+0x24/0x50)
[ 1238.572157] [<c0239618>] (dev_attr_show+0x0/0x50) from [<c010c148>] (sysfs_read_file+0xb0/0x140)
[ 1238.598554]  r5:c049716c r4:d5c21240
[ 1238.609326] [<c010c098>] (sysfs_read_file+0x0/0x140) from [<c00b9ee4>] (vfs_read+0xb0/0x13c)
[ 1238.634679] [<c00b9e34>] (vfs_read+0x0/0x13c) from [<c00ba0ac>] (SyS_read+0x44/0x74)
[ 1238.657944]  r8:bef45bf0 r7:00000000 r6:d6ac0600 r5:00000000 r4:00000000
[ 1238.678172] [<c00ba068>] (SyS_read+0x0/0x74) from [<c000eec0>] (ret_fast_syscall+0x0/0x30)
----

Signed-off-by: Mitsuhiro Kimura <mitsuhiro.kimura.kc@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-29 21:16:54 -08:00
..
3com Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-10-08 16:22:22 -04:00
8390
adaptec
adi net: ethernet: Remove superfluous ether_setup after alloc_etherdev 2014-10-03 15:31:40 -07:00
aeroflex
agere et131x: Add PCIe gigabit ethernet driver et131x to drivers/net 2014-10-03 12:22:19 -07:00
allwinner net: ethernet: Remove superfluous ether_setup after alloc_etherdev 2014-10-03 15:31:40 -07:00
alteon
altera Altera TSE: Add support for no PHY 2014-10-05 21:39:40 -04:00
amd amd-xgbe: Fix napi Rx budget accounting 2014-10-22 17:50:31 -04:00
apm drivers: net: xgene: fix: Use separate resources 2014-11-04 17:08:42 -05:00
apple
arc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-09-23 12:09:27 -04:00
atheros
broadcom tg3: fix ring init when there are more TX than RX channels 2014-11-25 15:18:45 -05:00
brocade bna: fix skb->truesize underestimation 2014-10-17 23:56:33 -04:00
cadence net: ethernet: Remove superfluous ether_setup after alloc_etherdev 2014-10-03 15:31:40 -07:00
calxeda net: ethernet: Remove superfluous ether_setup after alloc_etherdev 2014-10-03 15:31:40 -07:00
chelsio cxgb4 : Fix DCB priority groups being returned in wrong order 2014-11-21 00:05:55 -05:00
cirrus
cisco enic: update desc properly in rx_copybreak 2014-11-06 16:42:04 -05:00
davicom net: ethernet: Remove superfluous ether_setup after alloc_etherdev 2014-10-03 15:31:40 -07:00
dec
dlink
emulex net: Check for presence of IFLA_AF_SPEC 2014-11-26 15:29:01 -05:00
faraday
freescale net: fec: fix regression on i.MX28 introduced by rx_copybreak support 2014-11-07 12:08:58 -05:00
fujitsu
hisilicon
hp
i825xx
ibm
icplus
intel net: Check for presence of IFLA_AF_SPEC 2014-11-26 15:29:01 -05:00
marvell net: mv643xx_eth: reclaim TX skbs only when released by the HW 2014-11-06 14:54:39 -05:00
mellanox net/mlx4_core: Limit count field to 24 bits in qp_alloc_res 2014-11-26 12:04:49 -05:00
micrel net: ks8842: use dmaengine_terminate_all() API 2014-10-15 21:31:00 +05:30
microchip
moxa net: ethernet: Remove superfluous ether_setup after alloc_etherdev 2014-10-03 15:31:40 -07:00
myricom
natsemi
neterion
nuvoton net: ethernet: Remove superfluous ether_setup after alloc_etherdev 2014-10-03 15:31:40 -07:00
nvidia
nxp net: ethernet: Remove superfluous ether_setup after alloc_etherdev 2014-10-03 15:31:40 -07:00
octeon
oki-semi pch_gbe: 'select' NET_PTP_CLASSIFY. 2014-09-22 13:25:51 -04:00
packetengines
pasemi
qlogic qlcnic: Implement ndo_gso_check() 2014-11-14 17:12:48 -05:00
qualcomm net: qualcomm: Fix dependency 2014-11-11 18:12:32 -05:00
rdc
realtek r8169:add support for RTL8168EP 2014-10-08 15:58:45 -04:00
renesas sh_eth: Fix sleeping function called from invalid context 2014-11-29 21:16:54 -08:00
samsung
seeq
sfc sfc: don't BUG_ON efx->max_channels == 0 in probe 2014-11-03 15:57:50 -05:00
sgi
silan
sis
smsc smsc911x: power-up phydev before doing a software reset. 2014-11-13 15:09:28 -05:00
stmicro stmmac: platform: Move plat_dat checking earlier 2014-11-29 21:11:16 -08:00
sun sunhme: Add DMA mapping error checks. 2014-11-01 00:23:46 -04:00
tehuti
ti drivers: net: cpsw: Fix TX_IN_SEL offset 2014-11-16 14:20:00 -05:00
tile Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2014-10-15 07:48:18 +02:00
toshiba net: spider_net: avoid using signed char for bitops 2014-10-05 21:15:16 -04:00
tundra
via Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-10-07 21:16:26 -04:00
wiznet net: ethernet: Remove superfluous ether_setup after alloc_etherdev 2014-10-03 15:31:40 -07:00
xilinx drivers: net: ethernet: xilinx: xilinx_emaclite: revert the original commit "1db3ddff1602edf2390b7667dcbaa0f71512e3ea" 2014-11-05 16:00:51 -05:00
xircom
xscale
dnet.c
dnet.h
ec_bhf.c
ethoc.c net: ethernet: Remove superfluous ether_setup after alloc_etherdev 2014-10-03 15:31:40 -07:00
fealnx.c
jme.c
jme.h
Kconfig et131x: Add PCIe gigabit ethernet driver et131x to drivers/net 2014-10-03 12:22:19 -07:00
korina.c
lantiq_etop.c net: ethernet: Remove superfluous ether_setup after alloc_etherdev 2014-10-03 15:31:40 -07:00
Makefile et131x: Add PCIe gigabit ethernet driver et131x to drivers/net 2014-10-03 12:22:19 -07:00
netx-eth.c net: ethernet: Remove superfluous ether_setup after alloc_etherdev 2014-10-03 15:31:40 -07:00
s6gmac.c