From: Emmanuel Grumbach Date: Sun, 30 Nov 2014 15:17:26 +0000 (+0200) Subject: mac80211: update the channel context after channel switch X-Git-Tag: v4.9.8~4941^2~9^2~10 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=722ddb0dab29b666881d74067c2b92d42074351f;p=platform%2Fkernel%2Flinux-rpi3.git 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 --- diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 5d6dae9..da1c12c 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);