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authorMichal Kazior <michal.kazior@tieto.com>2014-04-04 13:02:43 +0200
committerJohannes Berg <johannes.berg@intel.com>2014-04-09 10:48:36 +0200
commit9b4816f543ee8d48bb49151718edac480d2080b1 (patch)
tree944f76706b70290b32d8046b8116bb77da1f8a70 /net/mac80211/chan.c
parent7b8a9cdd1f959c7166611fcc58ac91e8409c10ab (diff)
downloadlinux-sh-9b4816f543ee8d48bb49151718edac480d2080b1.tar.gz
mac80211: fix radar_enabled propagation
If chandef had non-HT width it was possible for radar_enabled update to not be propagated properly through drv_config(). This happened because ieee80211_hw_conf_chan() would never see different local->hw.conf.chandef and local->_oper_chandef. This wasn't a problem with HT chandefs because _oper_chandef width is reset to non-HT in ieee80211_free_chanctx() making ieee80211_hw_conf_chan() to kick in. This problem led (at least) ath10k to not start CAC if prior CAC was cancelled and both CACs were requested for identical non-HT chandefs. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/chan.c')
-rw-r--r--net/mac80211/chan.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 68bee813dfad..75b5dd2c9267 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -249,7 +249,7 @@ ieee80211_new_chanctx(struct ieee80211_local *local,
if (!local->use_chanctx) {
local->_oper_chandef = *chandef;
- ieee80211_hw_config(local, 0);
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
} else {
err = drv_add_chanctx(local, ctx);
if (err) {
@@ -286,7 +286,7 @@ static void ieee80211_free_chanctx(struct ieee80211_local *local,
check_single_channel = true;
local->hw.conf.radar_enabled = false;
- ieee80211_hw_config(local, 0);
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
} else {
drv_remove_chanctx(local, ctx);
}