path: root/net/mac80211/chan.c
diff options
authorEmmanuel Grumbach <>2014-11-30 17:17:26 +0200
committerJohannes Berg <>2014-12-12 12:35:38 +0100
commit722ddb0dab29b666881d74067c2b92d42074351f (patch)
tree623cba33a1c58221ba722b1af27b7b21b3b5aaf1 /net/mac80211/chan.c
parentf89f46cf3a23d8d7c98f924a461fd931e1331746 (diff)
mac80211: update the channel context after channel switch
When the channel switch has been made, a vif is now using the channel context which was reserved. When that happens, we need to update the channel context since its parameters may change. I hit a case in which I switched to a 40Mhz channel but the reserved channel context was still on 20Mhz. The rate control would try to send 40Mhz packets on a 20Mhz channel context and that made iwlwifi's firmware unhappy. Signed-off-by: Emmanuel Grumbach <> Signed-off-by: Johannes Berg <>
Diffstat (limited to 'net/mac80211/chan.c')
1 files changed, 4 insertions, 0 deletions
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 5d6dae9e4aac..da1c12c34487 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -1011,6 +1011,10 @@ ieee80211_vif_use_reserved_reassign(struct ieee80211_sub_if_data *sdata)
ieee80211_vif_update_chandef(sdata, &sdata->reserved_chandef);
+ ieee80211_recalc_smps_chanctx(local, new_ctx);
+ ieee80211_recalc_radar_chanctx(local, new_ctx);
+ ieee80211_recalc_chanctx_min_def(local, new_ctx);
if (changed)
ieee80211_bss_info_change_notify(sdata, changed);