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Commit 1852d40e authored by Johannes Berg's avatar Johannes Berg
Browse files

mac80211: ibss: disable beaconing before freeing beacon 



If we don't disable beaconing, the driver might attempt
to continue, but would fail to request a beacon. That's
strange, so disable beaconing first.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 8bf24293

net/mac80211/ibss.c

+12 −9
Original line number Diff line number Diff line
@@ -58,14 +58,6 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, 
	/* Reset own TSF to allow time synchronization work. */

	drv_reset_tsf(local, sdata);



	skb = ifibss->skb;

	RCU_INIT_POINTER(ifibss->presp, NULL);

	synchronize_rcu();

	skb->data = skb->head;

	skb->len = 0;

	skb_reset_tail_pointer(skb);

	skb_reserve(skb, sdata->local->hw.extra_tx_headroom);



	if (!ether_addr_equal(ifibss->bssid, bssid))

		sta_info_flush(sdata);
@@ -73,10 +65,21 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, 
	if (sdata->vif.bss_conf.ibss_joined) {

		sdata->vif.bss_conf.ibss_joined = false;

		sdata->vif.bss_conf.ibss_creator = false;

		sdata->vif.bss_conf.enable_beacon = false;

		netif_carrier_off(sdata->dev);

		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IBSS);

		ieee80211_bss_info_change_notify(sdata,

						 BSS_CHANGED_IBSS |

						 BSS_CHANGED_BEACON_ENABLED);

	}



	skb = ifibss->skb;

	RCU_INIT_POINTER(ifibss->presp, NULL);

	synchronize_rcu();

	skb->data = skb->head;

	skb->len = 0;

	skb_reset_tail_pointer(skb);

	skb_reserve(skb, sdata->local->hw.extra_tx_headroom);



	sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;



	cfg80211_chandef_create(&chandef, chan, ifibss->channel_type);