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mwl8k: recheck if station still has valid rates

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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>
This commit is contained in:
Yogesh Ashok Powar 2012-11-06 19:22:35 +05:30 committed by John W. Linville
parent 5d377fcaf4
commit fd712f5f5e
1 changed files with 10 additions and 0 deletions
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10
drivers/net/wireless/mwl8k.c
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@ -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