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mac80211: change TX aggregation locking

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To prepare for allowing drivers to sleep in
ampdu_action, change the locking in the TX
aggregation code to use the mutex the RX part
already uses. The spinlock is still necessary
around some code to avoid races with TX, but
now we can also synchronize_net() to avoid
getting an inconsistent sequence number.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2010-06-10 10:21:48 +02:00
committed by John W. Linville
parent 83a5cbf73a
commit cfcdbde35e
3 changed files with 58 additions and 47 deletions
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3
net/mac80211/driver-ops.h
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@@ -349,6 +349,9 @@ static inline int drv_ampdu_action(struct ieee80211_local *local,
u16 *ssn)
{
int ret = -EOPNOTSUPP;
might_sleep();
local_bh_disable();
if (local->ops->ampdu_action)
ret = local->ops->ampdu_action(&local->hw, &sdata->vif, action,