commit feb7bc9951246157cb9043b9886c7919b32d3cb9
author Felix Fietkau <nbd@openwrt.org> Thu Apr 19 21:18:28 2012 +0200
committer John W. Linville <linville@tuxdriver.com> Mon Apr 23 15:35:31 2012 -0400
tree c2088eec628eb136717b4ee98bf1c6658ac08c67
parent e5d821a4ff5bdaba2281b213582e3da7edfb1d3f

ath9k_hw: disable fast channel change when changing from/to half/quarter mode

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/hw.c

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index e576a92..75fd87f 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1687,6 +1687,10 @@
 	if (chan->channel == ah->curchan->channel)
 		goto fail;
 
+	if ((ah->curchan->channelFlags | chan->channelFlags) &
+	    (CHANNEL_HALF | CHANNEL_QUARTER))
+		goto fail;
+
 	if ((chan->channelFlags & CHANNEL_ALL) !=
 	    (ah->curchan->channelFlags & CHANNEL_ALL))
 		goto fail;