diff options
| author | Ilan Peer <ilan.peer@intel.com> | 2012-05-09 17:11:55 +0400 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-06-06 15:03:54 +0400 |
| commit | 622a9268231bd6b486ec058a28f773fa89926012 (patch) | |
| tree | 57c0eda48dfa100c44611ba7a88998009b7adfb4 /drivers/net/wireless/iwlwifi/iwl-agn.h | |
| parent | e19ebcab01cc130fa832764d453b263460ec3b91 (diff) | |
| download | linux-622a9268231bd6b486ec058a28f773fa89926012.tar.xz | |
iwlwifi: handle race condition in ROC flow
When a remain on channel request from mac80211 is followed by
a request to tx a mgmt frame offchannel, it is possible that
the remain on channel expires before the device reported the
tx status for the frame. This causes a race condition in
mac80211.
To fix this, delay the ROC notification to mac80211 until the
device reported the Tx status for all frames in the aux queue.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.h b/drivers/net/wireless/iwlwifi/iwl-agn.h index 79c0fe06f4db..5c1693f2573b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.h +++ b/drivers/net/wireless/iwlwifi/iwl-agn.h @@ -101,6 +101,7 @@ extern struct iwl_lib_ops iwl6030_lib; #define STATUS_CHANNEL_SWITCH_PENDING 11 #define STATUS_SCAN_COMPLETE 12 #define STATUS_POWER_PMI 13 +#define STATUS_SCAN_ROC_EXPIRED 14 struct iwl_ucode_capabilities; @@ -255,6 +256,10 @@ int __must_check iwl_scan_initiate(struct iwl_priv *priv, enum iwl_scan_type scan_type, enum ieee80211_band band); +void iwl_scan_roc_expired(struct iwl_priv *priv); +void iwl_scan_offchannel_skb(struct iwl_priv *priv); +void iwl_scan_offchannel_skb_status(struct iwl_priv *priv); + /* For faster active scanning, scan will move to the next channel if fewer than * PLCP_QUIET_THRESH packets are heard on this channel within * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell |