Re: [PATCH] iwlagn: avoid sleep in softirq context

[reinette chatre <reinette.chatre@intel.com>]

On Thu, 2008-10-30 at 11:12 -0700, John W. Linville wrote:
> __ieee80211_tasklet_handler -> __ieee80211_rx ->
> 	__ieee80211_rx_handle_packet -> ieee80211_invoke_rx_handlers ->
> 	ieee80211_rx_h_decrypt -> ieee80211_crypto_tkip_decrypt ->
> 	ieee80211_tkip_decrypt_data -> iwl4965_mac_update_tkip_key ->
> 	iwl_scan_cancel_timeout -> msleep
> 
> Ooops!
> 
> Avoid the sleep by changing iwl_scan_cancel_timeout with
> iwl_scan_cancel and simply returning on failure if the scan persists.
> This will cause hardware decryption to fail and we'll handle a few more
> frames with software decryption.
> 
> Signed-off-by: John W. Linville <linville@tuxdriver.com>
> ---
>  drivers/net/wireless/iwlwifi/iwl-agn.c |    6 +++++-
>  1 files changed, 5 insertions(+), 1 deletions(-)

I forgot to mention that this patch will cause some trivial (name change) conflicts when merged together with one we submitted recently (http://marc.info/?l=linux-wireless&m=122531440910147&w=2 )

Reinette