Sujith d22b0022e7 ath9k: Fix lockdep warning ... This patch fixes the lockdep warning shown below, and also initializes the starting sequence number when starting a TX aggregation session. ============================================= [ INFO: possible recursive locking detected ] 2.6.29-rc2-wl #21 --------------------------------------------- swapper/0 is trying to acquire lock: (_xmit_IEEE80211#2){-+..}, at: [<ffffffff80456d71>] __qdisc_run+0x221/0x290 but task is already holding lock: (_xmit_IEEE80211#2){-+..}, at: [<ffffffff80456d71>] __qdisc_run+0x221/0x290 other info that might help us debug this: 7 locks held by swapper/0: #0: (rcu_read_lock){..--}, at: [<ffffffff80442a63>] dev_queue_xmit+0x53/0x620 #1: (_xmit_ETHER#2){-+..}, at: [<ffffffff80456d71>] __qdisc_run+0x221/0x290 #2: (rcu_read_lock){..--}, at: [<ffffffff80442a63>] dev_queue_xmit+0x53/0x620 #3: (_xmit_IEEE80211#2){-+..}, at: [<ffffffff80456d71>] __qdisc_run+0x221/0x290 #4: (rcu_read_lock){..--}, at: [<ffffffffa0154919>] ieee80211_master_start_xmit+0x219/0x6c0 [mac80211] #5: (rcu_read_lock){..--}, at: [<ffffffffa01427c6>] ieee80211_start_tx_ba_session+0x66/0x4e0 [mac80211] #6: (rcu_read_lock){..--}, at: [<ffffffff80442a63>] dev_queue_xmit+0x53/0x620 stack backtrace: Pid: 0, comm: swapper Not tainted 2.6.29-rc2-wl #21 Call Trace: <IRQ> [<ffffffff8026c329>] __lock_acquire+0x1be9/0x1c40 [<ffffffff80442af1>] dev_queue_xmit+0xe1/0x620 [<ffffffff8026a8cc>] __lock_acquire+0x18c/0x1c40 [<ffffffff8026c3d5>] lock_acquire+0x55/0x70 [<ffffffff80456d71>] __qdisc_run+0x221/0x290 [<ffffffff804dbeb9>] _spin_lock+0x39/0x50 [<ffffffff80456d71>] __qdisc_run+0x221/0x290 [<ffffffff804dbd2f>] _spin_unlock+0x1f/0x50 [<ffffffff80456d71>] __qdisc_run+0x221/0x290 [<ffffffff80442d18>] dev_queue_xmit+0x308/0x620 [<ffffffff80442a63>] dev_queue_xmit+0x53/0x620 [<ffffffffa0142a63>] ieee80211_start_tx_ba_session+0x303/0x4e0 [mac80211] [<ffffffffa01427c6>] ieee80211_start_tx_ba_session+0x66/0x4e0 [mac80211] [<ffffffffa0149dae>] rate_control_get_rate+0xae/0xc0 [mac80211] [<ffffffffa01526b5>] invoke_tx_handlers+0x655/0x1000 [mac80211] [<ffffffff802699fd>] mark_held_locks+0x4d/0x90 [<ffffffff804dbcf5>] _spin_unlock_irqrestore+0x65/0x80 [<ffffffffa0151aaa>] __ieee80211_tx_prepare+0x16a/0x310 [mac80211] [<ffffffffa0151adc>] __ieee80211_tx_prepare+0x19c/0x310 [mac80211] [<ffffffff80439cc2>] pskb_expand_head+0x112/0x190 [<ffffffffa0154986>] ieee80211_master_start_xmit+0x286/0x6c0 [mac80211] [<ffffffffa0154919>] ieee80211_master_start_xmit+0x219/0x6c0 [mac80211] [<ffffffff8026a8cc>] __lock_acquire+0x18c/0x1c40 [<ffffffff80456d8e>] __qdisc_run+0x23e/0x290 [<ffffffff80442d18>] dev_queue_xmit+0x308/0x620 [<ffffffff80442a63>] dev_queue_xmit+0x53/0x620 [<ffffffffa0154221>] ieee80211_subif_start_xmit+0x4a1/0x980 [mac80211] [<ffffffffa0153f18>] ieee80211_subif_start_xmit+0x198/0x980 [mac80211] [<ffffffff80456d8e>] __qdisc_run+0x23e/0x290 [<ffffffff80442d18>] dev_queue_xmit+0x308/0x620 [<ffffffff80442a63>] dev_queue_xmit+0x53/0x620 [<ffffffffa028ecfd>] ip6_output+0x62d/0x1230 [ipv6] [<ffffffff8024ca00>] __mod_timer+0xb0/0xd0 [<ffffffffa02ad25a>] mld_sendpack+0x3fa/0x4a0 [ipv6] [<ffffffffa02ace60>] mld_sendpack+0x0/0x4a0 [ipv6] [<ffffffffa02adf90>] mld_ifc_timer_expire+0x0/0x340 [ipv6] [<ffffffffa02ae219>] mld_ifc_timer_expire+0x289/0x340 [ipv6] [<ffffffffa02adf90>] mld_ifc_timer_expire+0x0/0x340 [ipv6] [<ffffffff8024c097>] run_timer_softirq+0x147/0x220 [<ffffffff802473fb>] __do_softirq+0x9b/0x180 [<ffffffff80265516>] tick_dev_program_event+0x36/0xb0 [<ffffffff8020d77c>] call_softirq+0x1c/0x30 [<ffffffff8020f2c5>] do_softirq+0x65/0xb0 [<ffffffff80246ebd>] irq_exit+0x9d/0xc0 [<ffffffff80221db6>] smp_apic_timer_interrupt+0x86/0xd0 [<ffffffff8020d1b3>] apic_timer_interrupt+0x13/0x20 Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>		2009-02-09 15:03:35 -05:00
..
ahb.c	ath9k: get EEPROM contents from platform data on AHB bus	2009-01-29 16:00:33 -05:00
ani.c	ath9k: fix null pointer dereference in ani monitor code	2009-01-29 16:00:34 -05:00
ath9k.h	ath9k: Clean up the way the eeprom antenna configuration is read	2009-01-29 16:01:25 -05:00
beacon.c	ath9k: Merge queue draining functions	2009-01-29 16:00:40 -05:00
calib.c	ath9k: Fix AR9285 specific noise floor eeprom reads.	2009-01-29 16:01:49 -05:00
core.h	mac80211: Generic TSF debugging	2009-01-29 16:01:46 -05:00
debug.c	mac80211: Generic TSF debugging	2009-01-29 16:01:46 -05:00
eeprom.c	ath9k: Clean up the way the eeprom antenna configuration is read	2009-01-29 16:01:25 -05:00
hw.c	ath9k: Fix AR9285 specific noise floor eeprom reads.	2009-01-29 16:01:49 -05:00
hw.h	ath9k: Enable dynamic power save in ath9k.	2009-01-29 16:01:03 -05:00
initvals.h	ath9k: fix ar5416Addac_9100 values	2009-01-29 16:00:34 -05:00
Kconfig	ath9k: Enforce module build if rfkill is a module	2009-01-12 14:24:50 -05:00
mac.c	ath9k: Fix bug in TX DMA termination	2009-01-30 13:38:27 -05:00
main.c	ath9k: Setup short preamble properly in rate registration	2009-01-30 13:38:25 -05:00
Makefile	ath9k: introduce platform driver for AHB bus support	2009-01-29 16:00:32 -05:00
pci.c	ath9k: get EEPROM contents from platform data on AHB bus	2009-01-29 16:00:33 -05:00
phy.c	ath9k: Use cleaner debug masks	2008-12-05 09:35:08 -05:00
phy.h	ath9k: Adding support for Atheros AR9285 chipset.	2008-12-12 13:48:26 -05:00
rc.c	ath9k: Fix lockdep warning	2009-02-09 15:03:35 -05:00
rc.h	ath9k: rateCodeToIndex is not used, remove it	2009-01-29 16:00:38 -05:00
recv.c	ath9k: Enable dynamic power save in ath9k.	2009-01-29 16:01:03 -05:00
reg.h	ath9k: remove (u16) casts from rtc register access	2009-01-29 16:00:33 -05:00
regd_common.h	ath9k: simplify regulatory code	2009-01-29 16:01:20 -05:00
regd.c	ath9k: fix debug print on regd	2009-01-29 16:01:48 -05:00
regd.h	ath9k: simplify regulatory code	2009-01-29 16:01:20 -05:00
xmit.c	ath9k: Fix lockdep warning	2009-02-09 15:03:35 -05:00