• Wey-Yi Guy's avatar
    iwlwifi: do not perferm force reset while doing scan · 7acc7c68
    Wey-Yi Guy authored
    When uCode error condition detected, driver try to perform either
    rf reset or firmware reload in order bring device back to
    working condition.
    
    If rf reset is required and scan is in process, there is no need
    to issue rf reset since scan already reset the rf.
    
    If firmware reload is required and scan is in process, skip the
    reload request. There is a possibility firmware reload during
    scan cause problem.
    
    [  485.804046] WARNING: at net/mac80211/main.c:310 ieee80211_restart_hw+0x28/0x62()
    [  485.804049] Hardware name: Latitude E6400
    [  485.804052] ieee80211_restart_hw called with hardware scan in progress
    [  485.804054] Modules linked in: iwlagn iwlcore bnep sco rfcomm l2cap crc16 bluetooth [last unloaded: iwlcore]
    [  485.804069] Pid: 812, comm: kworker/u:3 Tainted: G        W   2.6.36-rc3-wl+ #74
    [  485.804072] Call Trace:
    [  485.804079]  [<c103019a>] warn_slowpath_common+0x60/0x75
    [  485.804084]  [<c1030213>] warn_slowpath_fmt+0x26/0x2a
    [  485.804089]  [<c145da67>] ieee80211_restart_hw+0x28/0x62
    [  485.804102]  [<f8b35dc6>] iwl_bg_restart+0x113/0x150 [iwlagn]
    [  485.804108]  [<c10415d5>] process_one_work+0x181/0x25c
    [  485.804119]  [<f8b35cb3>] ? iwl_bg_restart+0x0/0x150 [iwlagn]
    [  485.804124]  [<c104190a>] worker_thread+0xf9/0x1f2
    [  485.804128]  [<c1041811>] ? worker_thread+0x0/0x1f2
    [  485.804133]  [<c10451b0>] kthread+0x64/0x69
    [  485.804137]  [<c104514c>] ? kthread+0x0/0x69
    [  485.804141]  [<c1002df6>] kernel_thread_helper+0x6/0x10
    [  485.804145] ---[ end trace 3d4ebdc02d524bbb ]---
    [  485.804148] WG> 1
    [  485.804153] Pid: 812, comm: kworker/u:3 Tainted: G        W   2.6.36-rc3-wl+ #74
    [  485.804156] Call Trace:
    [  485.804161]  [<c145da9b>] ? ieee80211_restart_hw+0x5c/0x62
    [  485.804172]  [<f8b35dcb>] iwl_bg_restart+0x118/0x150 [iwlagn]
    [  485.804177]  [<c10415d5>] process_one_work+0x181/0x25c
    [  485.804188]  [<f8b35cb3>] ? iwl_bg_restart+0x0/0x150 [iwlagn]
    [  485.804192]  [<c104190a>] worker_thread+0xf9/0x1f2
    [  485.804197]  [<c1041811>] ? worker_thread+0x0/0x1f2
    [  485.804201]  [<c10451b0>] kthread+0x64/0x69
    [  485.804205]  [<c104514c>] ? kthread+0x0/0x69
    [  485.804209]  [<c1002df6>] kernel_thread_helper+0x6/0x10
    Signed-off-by: default avatarWey-Yi Guy <wey-yi.w.guy@intel.com>
    7acc7c68
iwl-core.c 80.4 KB