John W. Linville c3d34d5d96 wireless: register wiphy rfkill w/o holding cfg80211_mutex ... Otherwise lockdep complains... https://bugzilla.kernel.org/show_bug.cgi?id=17311 [ INFO: possible circular locking dependency detected ] 2.6.36-rc2-git4 #12 ------------------------------------------------------- kworker/0:3/3630 is trying to acquire lock: (rtnl_mutex){+.+.+.}, at: [<ffffffff813396c7>] rtnl_lock+0x12/0x14 but task is already holding lock: (rfkill_global_mutex){+.+.+.}, at: [<ffffffffa014b129>] rfkill_switch_all+0x24/0x49 [rfkill] which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (rfkill_global_mutex){+.+.+.}: [<ffffffff81079ad7>] lock_acquire+0x120/0x15b [<ffffffff813ae869>] __mutex_lock_common+0x54/0x52e [<ffffffff813aede9>] mutex_lock_nested+0x34/0x39 [<ffffffffa014b4ab>] rfkill_register+0x2b/0x29c [rfkill] [<ffffffffa0185ba0>] wiphy_register+0x1ae/0x270 [cfg80211] [<ffffffffa0206f01>] ieee80211_register_hw+0x1b4/0x3cf [mac80211] [<ffffffffa0292e98>] iwl_ucode_callback+0x9e9/0xae3 [iwlagn] [<ffffffff812d3e9d>] request_firmware_work_func+0x54/0x6f [<ffffffff81065d15>] kthread+0x8c/0x94 [<ffffffff8100ac24>] kernel_thread_helper+0x4/0x10 -> #1 (cfg80211_mutex){+.+.+.}: [<ffffffff81079ad7>] lock_acquire+0x120/0x15b [<ffffffff813ae869>] __mutex_lock_common+0x54/0x52e [<ffffffff813aede9>] mutex_lock_nested+0x34/0x39 [<ffffffffa018605e>] cfg80211_get_dev_from_ifindex+0x1b/0x7c [cfg80211] [<ffffffffa0189f36>] cfg80211_wext_giwscan+0x58/0x990 [cfg80211] [<ffffffff8139a3ce>] ioctl_standard_iw_point+0x1a8/0x272 [<ffffffff8139a529>] ioctl_standard_call+0x91/0xa7 [<ffffffff8139a687>] T.723+0xbd/0x12c [<ffffffff8139a727>] wext_handle_ioctl+0x31/0x6d [<ffffffff8133014e>] dev_ioctl+0x63d/0x67a [<ffffffff8131afd9>] sock_ioctl+0x48/0x21d [<ffffffff81102abd>] do_vfs_ioctl+0x4ba/0x509 [<ffffffff81102b5d>] sys_ioctl+0x51/0x74 [<ffffffff81009e02>] system_call_fastpath+0x16/0x1b -> #0 (rtnl_mutex){+.+.+.}: [<ffffffff810796b0>] __lock_acquire+0xa93/0xd9a [<ffffffff81079ad7>] lock_acquire+0x120/0x15b [<ffffffff813ae869>] __mutex_lock_common+0x54/0x52e [<ffffffff813aede9>] mutex_lock_nested+0x34/0x39 [<ffffffff813396c7>] rtnl_lock+0x12/0x14 [<ffffffffa0185cb5>] cfg80211_rfkill_set_block+0x1a/0x7b [cfg80211] [<ffffffffa014aed0>] rfkill_set_block+0x80/0xd5 [rfkill] [<ffffffffa014b07e>] __rfkill_switch_all+0x3f/0x6f [rfkill] [<ffffffffa014b13d>] rfkill_switch_all+0x38/0x49 [rfkill] [<ffffffffa014b821>] rfkill_op_handler+0x105/0x136 [rfkill] [<ffffffff81060708>] process_one_work+0x248/0x403 [<ffffffff81062620>] worker_thread+0x139/0x214 [<ffffffff81065d15>] kthread+0x8c/0x94 [<ffffffff8100ac24>] kernel_thread_helper+0x4/0x10 Signed-off-by: John W. Linville <linville@tuxdriver.com> Acked-by: Johannes Berg <johannes@sipsolutions.net>		2010-08-31 14:48:47 -04:00
..
.gitignore	wireless: support internal statically compiled regulatory database	2009-12-21 18:56:10 -05:00
chan.c	cfg80211: don't refuse HT20 channels on devices that don't support HT40	2010-06-02 16:13:17 -04:00
core.c	wireless: register wiphy rfkill w/o holding cfg80211_mutex	2010-08-31 14:48:47 -04:00
core.h	cfg80211: make action channel type optional	2010-06-02 16:13:27 -04:00
db.txt	wireless: support internal statically compiled regulatory database	2009-12-21 18:56:10 -05:00
debugfs.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
debugfs.h	cfg80211/mac80211: use debugfs_remove_recursive	2009-10-30 16:49:18 -04:00
ethtool.c	cfg80211: add firmware and hardware version to wiphy	2009-10-07 16:39:46 -04:00
ethtool.h	net/wireless/ethtool.h: drop unnecessary include of linux/ethtool.h	2009-10-07 16:39:49 -04:00
genregdb.awk	wireless: correct sparse warning in generated regdb.c	2010-07-20 16:49:37 -04:00
ibss.c	cfg80211: fix IBSS default management key	2010-07-26 15:32:41 -04:00
Kconfig	wireless: remove CONFIG_WIRELESS_OLD_REGULATORY	2009-12-28 16:31:37 -05:00
lib80211_crypt_ccmp.c	lib80211: remove unused host_build_iv option	2010-07-26 15:09:04 -04:00
lib80211_crypt_tkip.c	lib80211: remove unused host_build_iv option	2010-07-26 15:09:04 -04:00
lib80211_crypt_wep.c	lib80211: remove unused host_build_iv option	2010-07-26 15:09:04 -04:00
lib80211.c
Makefile	wireless: support internal statically compiled regulatory database	2009-12-21 18:56:10 -05:00
mlme.c	cfg80211: fix locking in action frame TX	2010-08-09 15:18:57 -04:00
nl80211.c	nl80211: Fix memory leaks	2010-07-28 16:24:01 -04:00
nl80211.h	cfg80211: Add connection quality monitoring support to nl80211	2010-03-24 16:02:37 -04:00
radiotap.c	wireless: update radiotap parser	2010-02-08 16:50:53 -05:00
reg.c	cfg80211: Update of regulatory request initiator handling	2010-07-28 16:24:01 -04:00
reg.h	wireless: move regulatory_init to .init.text	2010-06-18 15:11:13 -04:00
regdb.h	wireless: support internal statically compiled regulatory database	2009-12-21 18:56:10 -05:00
scan.c	cfg80211: don't get expired BSSes	2010-07-14 13:52:45 -04:00
sme.c	wireless: mark cfg80211_is_all_idle as static	2010-07-20 16:49:38 -04:00
sysfs.c	cfg80211: export multiple MAC addresses in sysfs	2010-01-22 16:11:16 -05:00
sysfs.h
util.c	bridge: use rx_handler_data pointer to store net_bridge_port pointer	2010-06-15 11:48:58 -07:00
wext-compat.c	wireless extensions: fix kernel heap content leak	2010-08-30 16:35:17 -04:00
wext-compat.h	cfg80211: validate channel settings across interfaces	2009-08-14 09:13:42 -04:00
wext-core.c	wireless extensions: fix kernel heap content leak	2010-08-30 16:35:17 -04:00
wext-priv.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
wext-proc.c	net: spread __net_init, __net_exit	2010-01-17 19:16:02 -08:00
wext-sme.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem	2010-05-11 14:24:55 -04:00
wext-spy.c	wext: refactor	2009-10-07 16:39:43 -04:00