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mac80211: rework the pending packets code

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The pending packets code is quite incomprehensible, uses memory barriers
nobody really understands, etc. This patch reworks it entirely, using
the queue spinlock, proper stop bits and the skb queues themselves to
indicate whether packets are pending or not (rather than a separate
variable like before).

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2009-03-23 17:28:37 +01:00
committed by John W. Linville
parent f0e72851f7
commit 2a577d9871
4 changed files with 99 additions and 80 deletions
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2
net/mac80211/main.c
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@ -781,6 +781,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
sta_info_init(local);
for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
skb_queue_head_init(&local->pending[i]);
tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
(unsigned long)local);
tasklet_disable(&local->tx_pending_tasklet);