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authorBen Greear <greearb@candelatech.com>2010-09-23 09:44:36 -0700
committerJohn W. Linville <linville@tuxdriver.com>2010-09-27 15:57:45 -0400
commit686b9cb994f5f74be790df4cd12873dfdc8a6984 (patch)
tree960bae4d7613e4420c28d0c422e3c63c2a569ed3 /net/mac80211/sta_info.c
parent295bafb47b0d365e1b4f747dffef29e590f13233 (diff)
downloadblackbird-op-linux-686b9cb994f5f74be790df4cd12873dfdc8a6984.tar.gz
blackbird-op-linux-686b9cb994f5f74be790df4cd12873dfdc8a6984.zip
mac80211/ath9k: Support AMPDU with multiple VIFs.
The old ieee80211_find_sta_by_hw method didn't properly find VIFS when there was more than one per AP. This caused AMPDU logic in ath9k to get the wrong VIF when trying to account for transmitted SKBs. This patch changes ieee80211_find_sta_by_hw to take a localaddr argument to distinguish between VIFs with the same AP but different local addresses. The method name is changed to ieee80211_find_sta_by_ifaddr. Signed-off-by: Ben Greear <greearb@candelatech.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/sta_info.c')
-rw-r--r--net/mac80211/sta_info.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 44e10a9de0a7..ca2cba9cea87 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -838,13 +838,20 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
mutex_unlock(&local->sta_mtx);
}
-struct ieee80211_sta *ieee80211_find_sta_by_hw(struct ieee80211_hw *hw,
- const u8 *addr)
+struct ieee80211_sta *ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw,
+ const u8 *addr,
+ const u8 *localaddr)
{
struct sta_info *sta, *nxt;
- /* Just return a random station ... first in list ... */
+ /*
+ * Just return a random station if localaddr is NULL
+ * ... first in list.
+ */
for_each_sta_info(hw_to_local(hw), addr, sta, nxt) {
+ if (localaddr &&
+ compare_ether_addr(sta->sdata->vif.addr, localaddr) != 0)
+ continue;
if (!sta->uploaded)
return NULL;
return &sta->sta;
@@ -852,7 +859,7 @@ struct ieee80211_sta *ieee80211_find_sta_by_hw(struct ieee80211_hw *hw,
return NULL;
}
-EXPORT_SYMBOL_GPL(ieee80211_find_sta_by_hw);
+EXPORT_SYMBOL_GPL(ieee80211_find_sta_by_ifaddr);
struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_vif *vif,
const u8 *addr)
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