1. 27 Feb, 2012 1 commit
  2. 03 Feb, 2012 1 commit
    • Mohammed Shafi Shajakhan's avatar
      ath9k: Fix kernel panic during driver initilization · 07445f68
      Mohammed Shafi Shajakhan authored
      
      
      all works need to be initialized before ieee80211_register_hw
      to prevent mac80211 call backs such as drv_start, drv_config
      getting started. otherwise we would queue/cancel works before
      initializing them and it leads to kernel panic.
      this issue can be recreated with the following script
      in Chrome laptops with AR928X cards, with background scan
      running (or) Network manager is running
      
      while true
      do
      sudo modprobe -v ath9k
      sleep 3
      sudo modprobe -r ath9k
      sleep 3
      done
      
      	 EIP: [<81040a47>] __cancel_work_timer+0xb8/0xe1 SS:ESP 0068:f6be9d70
      	 ---[ end trace 4f86d6139a9900ef ]---
      	 Registered led device: ath9k-phy0
      	 ieee80211 phy0: Atheros AR9280 Rev:2 mem=0xf88a0000,
      	 irq=16
      	 Kernel panic - not syncing: Fatal exception
      	 Pid: 456, comm: wpa_supplicant Tainted: G      D
      	 3.0.13 #1
      	Call Trace:
      	 [<81379e21>] panic+0x53/0x14a
      	 [<81004a30>] oops_end+0x73/0x81
      	 [<81004b53>] die+0x4c/0x55
      	 [<81002710>] do_trap+0x7c/0x83
      	 [<81002855>] ? do_bounds+0x58/0x58
      	 [<810028cc>] do_invalid_op+0x77/0x81
      	 [<81040a47>] ? __cancel_work_timer+0xb8/0xe1
      	 [<810489ec>] ? sched_clock_cpu+0x81/0x11f
      	 [<8103f809>] ? wait_on_work+0xe2/0xf7
      	 [<8137f807>] error_code+0x67/0x6c
      	 [<810300d8>] ? wait_consider_task+0x4ba/0x84c
      	 [<81040a47>] ? __cancel_work_timer+0xb8/0xe1
      	 [<810380c9>] ? try_to_del_timer_sync+0x5f/0x67
      	 [<81040a91>] cancel_work_sync+0xf/0x11
      	 [<f88d7b7c>] ath_set_channel+0x62/0x25c [ath9k]
      	 [<f88d67d1>] ? ath9k_tx_last_beacon+0x26a/0x85c [ath9k]
      	 [<f88d8899>] ath_radio_disable+0x3f1/0x68e [ath9k]
      	 [<f90d0edb>] ieee80211_hw_config+0x111/0x116 [mac80211]
      	 [<f90dd95c>] __ieee80211_recalc_idle+0x919/0xa37 [mac80211]
      	 [<f90dda76>] __ieee80211_recalc_idle+0xa33/0xa37 [mac80211]
      	 [<812dbed8>] __dev_open+0x82/0xab
      
      Cc: <stable@vger.kernel.org>
      Cc: Gary Morain <gmorain@google.com>
      Cc: Paul Stewart <pstew@google.com>
      Cc: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
      Tested-by: default avatarMohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
      Signed-off-by: default avatarRajkumar Manoharan <rmanohar@qca.qualcomm.com>
      Signed-off-by: default avatarMohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      07445f68
  3. 19 Dec, 2011 2 commits
  4. 13 Dec, 2011 1 commit
  5. 06 Dec, 2011 1 commit
  6. 30 Nov, 2011 2 commits
  7. 09 Nov, 2011 1 commit
  8. 08 Nov, 2011 1 commit
  9. 31 Oct, 2011 1 commit
  10. 11 Oct, 2011 1 commit
    • Felix Fietkau's avatar
      ath9k_hw: clean up tx power handling · ca2c68cc
      Felix Fietkau authored
      
      
      The code for handling various restrictions concerning regulatory limits,
      antenna gain, etc. is very convoluted and duplicated across various
      EEPROM parsing implementations, making it hard to review.
      
      This patch partially cleans up the mess by unifying regulatory limit
      handling in one function and simplifying handling of antenna gain.
      It also removes unused transmit power scaling arrays from the EEPROM code,
      which belonged to an unimplemented API that isn't supposed to be in
      the driver anyway.
      
      Signed-off-by: default avatarFelix Fietkau <nbd@openwrt.org>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      ca2c68cc
  11. 19 Sep, 2011 1 commit
  12. 14 Sep, 2011 3 commits
  13. 29 Aug, 2011 1 commit
  14. 24 Aug, 2011 1 commit
  15. 09 Aug, 2011 1 commit
  16. 08 Aug, 2011 1 commit
  17. 01 Aug, 2011 1 commit
  18. 18 Jul, 2011 1 commit
    • Rajkumar Manoharan's avatar
      ath9k: Fix sparse warnings · 5479de6e
      Rajkumar Manoharan authored
      
      
      drivers/net/wireless/ath/ath9k/init.c:199:21: warning: context imbalance
      in 'ath9k_reg_rmw' - different lock contexts for basic block
      drivers/net/wireless/ath/ath9k/xmit.c:1175:31: warning: context
      imbalance in 'ath_drain_txq_list' - unexpected unlock
      drivers/net/wireless/ath/ath9k/xmit.c:2047:23: warning: context
      imbalance in 'ath_tx_process_buffer' - unexpected unlock
      drivers/net/wireless/ath/ath9k/ar9003_eeprom.c:3041:24: warning: cast to
      restricted __le32
      
      Signed-off-by: default avatarRajkumar Manoharan <rmanohar@qca.qualcomm.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      5479de6e
  19. 29 Jun, 2011 1 commit
  20. 22 Jun, 2011 3 commits
  21. 21 Jun, 2011 1 commit
    • Alexey Dobriyan's avatar
      net: remove mm.h inclusion from netdevice.h · b7f080cf
      Alexey Dobriyan authored
      
      
      Remove linux/mm.h inclusion from netdevice.h -- it's unused (I've checked manually).
      
      To prevent mm.h inclusion via other channels also extract "enum dma_data_direction"
      definition into separate header. This tiny piece is what gluing netdevice.h with mm.h
      via "netdevice.h => dmaengine.h => dma-mapping.h => scatterlist.h => mm.h".
      Removal of mm.h from scatterlist.h was tried and was found not feasible
      on most archs, so the link was cutoff earlier.
      
      Hope people are OK with tiny include file.
      
      Note, that mm_types.h is still dragged in, but it is a separate story.
      
      Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b7f080cf
  22. 01 Jun, 2011 1 commit
  23. 19 May, 2011 1 commit
  24. 25 Apr, 2011 2 commits
  25. 30 Mar, 2011 6 commits
  26. 28 Feb, 2011 1 commit
  27. 15 Feb, 2011 1 commit
  28. 28 Jan, 2011 1 commit