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authorSujith Manoharan <c_manoha@qca.qualcomm.com>2014-10-17 07:40:17 +0530
committerJohn W. Linville <linville@tuxdriver.com>2014-10-27 14:16:15 -0400
commit290c8a77e8a9c719bbb11862138e76c9c1dfda61 (patch)
treea6603832c7e66cac0a534d02e76c2740893bc432 /drivers
parent67259d51dfea82f824699db4458bacb2124cb074 (diff)
downloadblackbird-op-linux-290c8a77e8a9c719bbb11862138e76c9c1dfda61.tar.gz
blackbird-op-linux-290c8a77e8a9c719bbb11862138e76c9c1dfda61.zip
ath9k: Fix offchannel flush timeout
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath/ath9k/channel.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/channel.c b/drivers/net/wireless/ath/ath9k/channel.c
index 7e518aad37ea..abc3e2e77ba6 100644
--- a/drivers/net/wireless/ath/ath9k/channel.c
+++ b/drivers/net/wireless/ath/ath9k/channel.c
@@ -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) {
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