mwl8k: Delete ampdu streams with state AMPDU_STREAM_NEW in sta remove

When a station deauths, we do not delete the streams with state
AMPDU_STREAM_NEW and these remain created forever. Fix this issue by
removing such streams in the driver

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index 04442c6..fc4d4a4 100644 (file)
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -3935,7 +3935,30 @@ static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw *hw,
                                     struct ieee80211_vif *vif, u8 *addr)
 {
        struct mwl8k_cmd_set_new_stn *cmd;
-       int rc;
+       struct mwl8k_priv *priv = hw->priv;
+       int rc, i;
+       u8 idx;
+
+       spin_lock(&priv->stream_lock);
+       /* Destroy any active ampdu streams for this sta */
+       for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
+               struct mwl8k_ampdu_stream *s;
+               s = &priv->ampdu[i];
+               if (s->state != AMPDU_NO_STREAM) {
+                       if (memcmp(s->sta->addr, addr, ETH_ALEN) == 0) {
+                               if (s->state == AMPDU_STREAM_ACTIVE) {
+                                       idx = s->idx;
+                                       spin_unlock(&priv->stream_lock);
+                                       mwl8k_destroy_ba(hw, idx);
+                                       spin_lock(&priv->stream_lock);
+                               } else if (s->state == AMPDU_STREAM_NEW) {
+                                       mwl8k_remove_stream(hw, s);
+                               }
+                       }
+               }
+       }
+
+       spin_unlock(&priv->stream_lock);
 
        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
        if (cmd == NULL)