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ath9k: Fix offchannel flush timeout

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An offchannel operation also needs to have
a flush timeout that doesn't exceed the NoA
absence duration of a GO context, so use
channel_switch_time. The first offchannel
operation is set a flush timeout of 10ms since
channel_switch_time will be zero.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2014-10-17 07:40:17 +05:30 committed by John W. Linville
parent 67259d51df
commit 290c8a77e8
1 changed files with 20 additions and 0 deletions
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20
drivers/net/wireless/ath/ath9k/channel.c
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@ -207,6 +207,26 @@ void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx)
if (!ctx)
return;
if (ctx == &sc->offchannel.chan) {
spin_lock_bh(&sc->chan_lock);
if (likely(sc->sched.channel_switch_time))
ctx->flush_timeout =
usecs_to_jiffies(sc->sched.channel_switch_time);
else
ctx->flush_timeout =
msecs_to_jiffies(10);
spin_unlock_bh(&sc->chan_lock);
/*
* There is no need to iterate over the
* active/assigned channel contexts if
* the current context is offchannel.
*/
return;
}
ictx = ctx;
list_for_each_entry(avp, &ctx->vifs, list) {