From: Johannes Berg Date: Fri, 9 Mar 2012 12:12:35 +0000 (+0100) Subject: mac80211: set channel back after disassociating X-Git-Tag: MMI-PSA29.97-13-9~17259^2~48^2~78 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3cc5240b5e036abb565c8ac7cffdcceb06a13517;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git mac80211: set channel back after disassociating As we've discussed, we want to avoid channel changes while associated. While the part when we actually associate needs a bit more work, the bit that happens on disassociating can be changed quite easily. Move the channel type change later in the disassociate process to set the channel only after the driver was told that it's now disassociated. As the driver could expect powersave to be enabled only when associated, this thus results in splitting the config call, but overall what happens makes more sense this way. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 1d09df248c56..5c2ba80c2932 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1394,7 +1394,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; struct sta_info *sta; - u32 changed = 0, config_changed = 0; + u32 changed = 0; u8 bssid[ETH_ALEN]; ASSERT_MGD_MTX(ifmgd); @@ -1454,9 +1454,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_ASSOC; sdata->vif.bss_conf.assoc = false; - /* channel(_type) changes are handled by ieee80211_hw_config */ - WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT)); - /* on the next assoc, re-program HT parameters */ sdata->ht_opmode_valid = false; memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa)); @@ -1469,12 +1466,10 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, if (local->hw.conf.flags & IEEE80211_CONF_PS) { local->hw.conf.flags &= ~IEEE80211_CONF_PS; - config_changed |= IEEE80211_CONF_CHANGE_PS; + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); } local->ps_sdata = NULL; - ieee80211_hw_config(local, config_changed); - /* Disable ARP filtering */ if (sdata->vif.bss_conf.arp_filter_enabled) { sdata->vif.bss_conf.arp_filter_enabled = false; @@ -1488,6 +1483,10 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT; ieee80211_bss_info_change_notify(sdata, changed); + /* channel(_type) changes are handled by ieee80211_hw_config */ + WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT)); + ieee80211_hw_config(local, 0); + /* disassociated - set to defaults now */ ieee80211_set_wmm_default(sdata, false);