From ffd2778bb984afe3cc264e22a125c06587020aa3 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 29 Jul 2010 17:36:43 +0200 Subject: [PATCH] mac80211: fix driver offchannel notification when the channel does not change When running in client mode and associating to an AP, the channel change is usually performed with the offchannel flag still set. However after the assoc is complete, the following channel change event is suppressed because the run time channel is already set to the operating channel. Fix this by sending channel change notifications to the driver even if only the offchannel flag changes. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- net/mac80211/main.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 1ed956c9cb8b..18b8df922c60 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -99,11 +99,13 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) int ret = 0; int power; enum nl80211_channel_type channel_type; + u32 offchannel_flag; might_sleep(); scan_chan = local->scan_channel; + offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; if (scan_chan) { chan = scan_chan; channel_type = NL80211_CHAN_NO_HT; @@ -117,8 +119,9 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) channel_type = local->_oper_channel_type; local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; } + offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; - if (chan != local->hw.conf.channel || + if (offchannel_flag || chan != local->hw.conf.channel || channel_type != local->hw.conf.channel_type) { local->hw.conf.channel = chan; local->hw.conf.channel_type = channel_type; -- 2.34.1