linux-pinenote/drivers/net/wireless/brcm80211/brcmsmac
Arend van Spriel c7515d2365 brcmsmac: call bcma_core_pci_power_save() from non-atomic context
This patch adds explicit call to bcma_core_pci_power_save() from
a non-atomic context resolving 'scheduling while atomic' issue.

[   13.224317] BUG: scheduling while atomic: dhcpcd/1800/0x00000202
[   13.224322] Modules linked in: brcmsmac nouveau coretemp kvm_intel kvm cordic brcmutil bcma dell_wmi atl1c ttm mxm_wmi wmi
[   13.224354] CPU: 0 PID: 1800 Comm: dhcpcd Tainted: G        W    3.11.0-wl #1
[   13.224359] Hardware name: Alienware M11x R2/M11x R2, BIOS A04 11/23/2010
[   13.224363]  ffff880177c12c40 ffff880170fd1968 ffffffff8169af5b 0000000000000007
[   13.224374]  ffff880170fd1ad0 ffff880170fd1978 ffffffff81697ee2 ffff880170fd19f8
[   13.224383]  ffffffff816a19f5 00000000000f4240 000000000000d080 ffff880170fd1fd8
[   13.224391] Call Trace:
[   13.224399]  [<ffffffff8169af5b>] dump_stack+0x4f/0x84
[   13.224403]  [<ffffffff81697ee2>] __schedule_bug+0x43/0x51
[   13.224409]  [<ffffffff816a19f5>] __schedule+0x6e5/0x810
[   13.224412]  [<ffffffff816a1c34>] schedule+0x24/0x70
[   13.224416]  [<ffffffff816a04fc>] schedule_hrtimeout_range_clock+0x10c/0x150
[   13.224420]  [<ffffffff810684e0>] ? update_rmtp+0x60/0x60
[   13.224424]  [<ffffffff8106915f>] ? hrtimer_start_range_ns+0xf/0x20
[   13.224429]  [<ffffffff816a054e>] schedule_hrtimeout_range+0xe/0x10
[   13.224432]  [<ffffffff8104f6fb>] usleep_range+0x3b/0x40
[   13.224437]  [<ffffffffa003733a>] bcma_pcie_mdio_read.isra.5+0x8a/0x100 [bcma]
[   13.224442]  [<ffffffffa00374a5>] bcma_pcie_mdio_writeread.isra.6.constprop.13+0x25/0x30 [bcma]
[   13.224448]  [<ffffffffa00374f9>] bcma_core_pci_power_save+0x49/0x80 [bcma]
[   13.224452]  [<ffffffffa003765d>] bcma_core_pci_up+0x2d/0x60 [bcma]
[   13.224460]  [<ffffffffa03dc17c>] brcms_c_up+0xfc/0x430 [brcmsmac]
[   13.224467]  [<ffffffffa03d1a7d>] brcms_up+0x1d/0x20 [brcmsmac]
[   13.224473]  [<ffffffffa03d2498>] brcms_ops_start+0x298/0x340 [brcmsmac]
[   13.224478]  [<ffffffff81600a12>] ? cfg80211_netdev_notifier_call+0xd2/0x5f0
[   13.224483]  [<ffffffff815fa53d>] ? packet_notifier+0xad/0x1d0
[   13.224487]  [<ffffffff81656e75>] ieee80211_do_open+0x325/0xf80
[   13.224491]  [<ffffffff8106ac09>] ? __raw_notifier_call_chain+0x9/0x10
[   13.224495]  [<ffffffff81657b41>] ieee80211_open+0x71/0x80
[   13.224498]  [<ffffffff81526267>] __dev_open+0x87/0xe0
[   13.224502]  [<ffffffff8152650c>] __dev_change_flags+0x9c/0x180
[   13.224505]  [<ffffffff815266a3>] dev_change_flags+0x23/0x70
[   13.224509]  [<ffffffff8158cd68>] devinet_ioctl+0x5b8/0x6a0
[   13.224512]  [<ffffffff8158d5c5>] inet_ioctl+0x75/0x90
[   13.224516]  [<ffffffff8150b38b>] sock_do_ioctl+0x2b/0x70
[   13.224519]  [<ffffffff8150b681>] sock_ioctl+0x71/0x2a0
[   13.224523]  [<ffffffff8114ed47>] do_vfs_ioctl+0x87/0x520
[   13.224528]  [<ffffffff8113f159>] ? ____fput+0x9/0x10
[   13.224533]  [<ffffffff8106228c>] ? task_work_run+0x9c/0xd0
[   13.224537]  [<ffffffff8114f271>] SyS_ioctl+0x91/0xb0
[   13.224541]  [<ffffffff816aa252>] system_call_fastpath+0x16/0x1b

Cc: <stable@vger.kernel.org> # 3.11.x
Cc: Tod Jackson <tod.jackson@gmail.com>
Cc: Joe Perches <joe@perches.com>
Cc: Rafal Milecki <zajec5@gmail.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 14:02:34 -04:00
..
phy brcmsmac: add support for BCM4313 iPA variant 2013-08-22 14:30:35 -04:00
aiutils.c brcmsmac: use bcma PCIe up and down functions 2013-08-26 14:09:03 -04:00
aiutils.h brcmsmac: use bcma PCIe up and down functions 2013-08-26 14:09:03 -04:00
ampdu.c brcmsmac: Further reduce log spam from tx phy messages 2013-07-22 16:54:41 -04:00
ampdu.h brcmsmac: Remove internal tx queue 2012-11-20 14:04:23 -05:00
antsel.c brcmsmac: Use debug macros for general error and debug statements 2012-11-20 14:06:16 -05:00
antsel.h
brcms_trace_events.c
brcms_trace_events.h brcmsmac: Add tracepoint for AMPDU session information 2012-11-20 14:08:06 -05:00
channel.c mac80211: Use a cfg80211_chan_def in ieee80211_hw_conf_chan 2013-03-25 19:19:35 +01:00
channel.h brcm80211: smac: use current regulatory domain when checking whether OFDM is allowed 2012-06-20 15:14:40 -04:00
d11.h brcmsmac: implement ieee80211_ops get_tsf and set_tsf 2013-03-27 13:37:33 -04:00
debug.c PTR_RET is now PTR_ERR_OR_ZERO(): Replace most. 2013-07-15 11:25:01 +09:30
debug.h brcmsmac: add copyright information for Canonical 2013-01-02 14:38:36 -05:00
dma.c brcmsmac: Fix WARNING caused by lack of calls to dma_mapping_error() 2013-08-15 16:08:09 -04:00
dma.h brcmsmac: Add brcms_dbg_dma() debug macro 2012-11-20 14:07:12 -05:00
led.c brcmsmac: radio on led support 2013-03-06 16:28:20 -05:00
led.h brcmsmac: radio on led support 2013-03-06 16:28:20 -05:00
mac80211_if.c brcmsmac: call bcma_core_pci_power_save() from non-atomic context 2013-09-26 14:02:34 -04:00
mac80211_if.h brcmsmac: radio on led support 2013-03-06 16:28:20 -05:00
main.c brcmsmac: use bcma PCIe up and down functions 2013-08-26 14:09:03 -04:00
main.h brcmsmac: add support for probe response template 2013-03-27 13:37:36 -04:00
Makefile brcm80211: simplify makefiles 2013-04-12 15:29:04 -04:00
phy_shim.c brcmsmac: remove brcmsmac own sprom parsing 2012-05-16 12:45:23 -04:00
phy_shim.h brcmsmac: remove brcmsmac own sprom parsing 2012-05-16 12:45:23 -04:00
pmu.c brcmsmac: remove some pmu functions and use the bcma equivalents 2013-03-27 13:39:09 -04:00
pmu.h brcmsmac: remove some pmu functions and use the bcma equivalents 2013-03-27 13:39:09 -04:00
pub.h brcmsmac: add support for adhoc mode 2013-03-27 13:37:37 -04:00
rate.c
rate.h brcm80211: smac: remove phy api bypass in rate.h 2011-11-08 15:54:09 -05:00
scb.h brcmsmac: remove dead code 2013-01-07 15:16:55 -05:00
stf.c brcmsmac: Add brcms_dbg_ht() debug macro 2012-11-20 14:07:25 -05:00
stf.h
types.h brcm80211: Convert log message levels to debug levels 2012-11-20 14:05:37 -05:00
ucode_loader.c
ucode_loader.h