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rt2x00: Add unlikely macro to special case tx status handling

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This special case shouldn't happen very often. Only if a frame that
is not intended to be aggregated ends up in an AMPDU _and_ was intended
to be sent at a different MCS rate as the aggregate. Hence, using
unlikely is justified.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Helmut Schaa 2011-03-03 19:40:33 +01:00 committed by John W. Linville
parent c262e08b79
commit 5356d96330
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/rt2x00/rt2800lib.c
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@ -681,7 +681,7 @@ void rt2800_txdone_entry(struct queue_entry *entry, u32 status)
* confuse the rate control algortihm by providing clearly wrong
* data.
*/
if (aggr == 1 && ampdu == 0 && real_mcs != mcs) {
if (unlikely(aggr == 1 && ampdu == 0 && real_mcs != mcs)) {
skbdesc->tx_rate_idx = real_mcs;
mcs = real_mcs;
}