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mac80211: add a pending fix for a locking error in the aggregation reorder release code

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SVN-Revision: 23060
This commit is contained in:
Felix Fietkau 2010-09-14 21:13:01 +00:00
parent 2c848d33a9
commit 9c2cfd7a1b
1 changed files with 25 additions and 0 deletions
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package/mac80211/patches/300-mac80211_release_reorder_fix.patch Normal file
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@ -0,0 +1,25 @@
[PATCH] mac80211: hoist sta->lock from reorder release timer
The patch "mac80211: AMPDU rx reorder timeout timer" clashes
with "mac80211: use netif_receive_skb in ieee80211_rx callpath"
The timer itself is part of the station's private struct and
it gets killed whenever the station is removed. Therefore
the extra sta->lock protection (that can interferes with the
tx path) is not necessary.
Reported-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
---
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -129,9 +129,7 @@ static void sta_rx_agg_reorder_timer_exp
timer_to_tid[0]);
rcu_read_lock();
- spin_lock(&sta->lock);
ieee80211_release_reorder_timeout(sta, *ptid);
- spin_unlock(&sta->lock);
rcu_read_unlock();
}