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 <emmanuel.grumbach@xxxxxxxxx> --- This is a second version of the patch I sent earlier. I think the first version is more generic. Luca / Michal / Whoever, please share your thoughts on which version should be merged. --- net/mac80211/chan.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 4c74e8d..eadc1a0 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -993,6 +993,10 @@ ieee80211_vif_use_reserved_reassign(struct ieee80211_sub_if_data *sdata) sdata->vif.bss_conf.chandef = 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); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
