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authorYogesh Ashok Powar <yogeshp@marvell.com>2012-11-06 19:22:35 +0530
committerJohn W. Linville <linville@tuxdriver.com>2012-11-14 14:56:08 -0500
commitfd712f5f5e0723fbbd3720983b3fa2189b2e10f8 (patch)
treebe59ade3eae69d16446c445e4739ef3129bd616c /drivers/net/wireless/mwl8k.c
parent5d377fcaf48cc38882bb92c3b4a0cfcfb250087b (diff)
downloadblackbird-op-linux-fd712f5f5e0723fbbd3720983b3fa2189b2e10f8.tar.gz
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mwl8k: recheck if station still has valid rates
We have 6.5 Mbps is minimum rate of the link as the criterion for creation of BA. Although we check this before creating the BA stream, by the time amdpu_action is called from the workqueue, the link can get affected in the meantime. Hence, add an additional check in amdpu_action. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mwl8k.c')
-rw-r--r--drivers/net/wireless/mwl8k.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index cb5594d433b8..996176596e02 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -5085,6 +5085,7 @@ mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct mwl8k_priv *priv = hw->priv;
struct mwl8k_ampdu_stream *stream;
u8 *addr = sta->addr;
+ struct mwl8k_sta *sta_info = MWL8K_STA(sta);
if (!(hw->flags & IEEE80211_HW_AMPDU_AGGREGATION))
return -ENOTSUPP;
@@ -5127,6 +5128,15 @@ mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
/* Release the lock before we do the time consuming stuff */
spin_unlock(&priv->stream_lock);
for (i = 0; i < MAX_AMPDU_ATTEMPTS; i++) {
+
+ /* Check if link is still valid */
+ if (!sta_info->is_ampdu_allowed) {
+ spin_lock(&priv->stream_lock);
+ mwl8k_remove_stream(hw, stream);
+ spin_unlock(&priv->stream_lock);
+ return -EBUSY;
+ }
+
rc = mwl8k_check_ba(hw, stream);
/* If HW restart is in progress mwl8k_post_cmd will
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