Merge commit 'v2.6.35-rc1' into for-2.6.36

1 files changed, 34 insertions, 13 deletions

diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index f3e942486749..b2cc1fda6cfd 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -13,6 +13,7 @@
  */
 
 #include <linux/delay.h>
+#include <linux/slab.h>
 #include <linux/if_ether.h>
 #include <linux/skbuff.h>
 #include <linux/if_arp.h>
@@ -91,12 +92,18 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	if (memcmp(ifibss->bssid, bssid, ETH_ALEN))
 		sta_info_flush(sdata->local, sdata);
 
+	/* if merging, indicate to driver that we leave the old IBSS */
+	if (sdata->vif.bss_conf.ibss_joined) {
+		sdata->vif.bss_conf.ibss_joined = false;
+		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IBSS);
+	}
+
 	memcpy(ifibss->bssid, bssid, ETH_ALEN);
 
 	sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
 
 	local->oper_channel = chan;
-	local->oper_channel_type = NL80211_CHAN_NO_HT;
+	WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT));
 	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
 
 	sband = local->hw.wiphy->bands[chan->band];
@@ -170,6 +177,8 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	bss_change |= BSS_CHANGED_BSSID;
 	bss_change |= BSS_CHANGED_BEACON;
 	bss_change |= BSS_CHANGED_BEACON_ENABLED;
+	bss_change |= BSS_CHANGED_IBSS;
+	sdata->vif.bss_conf.ibss_joined = true;
 	ieee80211_bss_info_change_notify(sdata, bss_change);
 
 	ieee80211_sta_def_wmm_params(sdata, sband->n_bitrates, supp_rates);
@@ -264,17 +273,16 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 			sta->sta.supp_rates[band] = supp_rates |
 				ieee80211_mandatory_rates(local, band);
 
+			if (sta->sta.supp_rates[band] != prev_rates) {
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
-			if (sta->sta.supp_rates[band] != prev_rates)
 				printk(KERN_DEBUG "%s: updated supp_rates set "
-				    "for %pM based on beacon info (0x%llx | "
-				    "0x%llx -> 0x%llx)\n",
-				    sdata->name,
-				    sta->sta.addr,
-				    (unsigned long long) prev_rates,
-				    (unsigned long long) supp_rates,
-				    (unsigned long long) sta->sta.supp_rates[band]);
+				    "for %pM based on beacon/probe_response "
+				    "(0x%x -> 0x%x)\n",
+				    sdata->name, sta->sta.addr,
+				    prev_rates, sta->sta.supp_rates[band]);
 #endif
+				rate_control_rate_init(sta);
+			}
 			rcu_read_unlock();
 		} else {
 			rcu_read_unlock();
@@ -370,6 +378,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 		       sdata->name, mgmt->bssid);
 #endif
 		ieee80211_sta_join_ibss(sdata, bss);
+		supp_rates = ieee80211_sta_get_rates(local, elems, band);
 		ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa,
 				       supp_rates, GFP_KERNEL);
 	}
@@ -480,7 +489,9 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
 	printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
 	       "IBSS networks with same SSID (merge)\n", sdata->name);
 
-	ieee80211_request_internal_scan(sdata, ifibss->ssid, ifibss->ssid_len);
+	ieee80211_request_internal_scan(sdata,
+			ifibss->ssid, ifibss->ssid_len,
+			ifibss->fixed_channel ? ifibss->channel : NULL);
 }
 
 static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
@@ -587,8 +598,9 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 		printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
 		       "join\n", sdata->name);
 
-		ieee80211_request_internal_scan(sdata, ifibss->ssid,
-						ifibss->ssid_len);
+		ieee80211_request_internal_scan(sdata,
+				ifibss->ssid, ifibss->ssid_len,
+				ifibss->fixed_channel ? ifibss->channel : NULL);
 	} else {
 		int interval = IEEE80211_SCAN_INTERVAL;
 
@@ -896,6 +908,13 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 	sdata->u.ibss.channel = params->channel;
 	sdata->u.ibss.fixed_channel = params->channel_fixed;
 
+	/* fix ourselves to that channel now already */
+	if (params->channel_fixed) {
+		sdata->local->oper_channel = params->channel;
+		WARN_ON(!ieee80211_set_channel_type(sdata->local, sdata,
+						    NL80211_CHAN_NO_HT));
+	}
+
 	if (params->ie) {
 		sdata->u.ibss.ie = kmemdup(params->ie, params->ie_len,
 					   GFP_KERNEL);
@@ -950,7 +969,9 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 	kfree(sdata->u.ibss.ie);
 	skb = sdata->u.ibss.presp;
 	rcu_assign_pointer(sdata->u.ibss.presp, NULL);
-	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
+	sdata->vif.bss_conf.ibss_joined = false;
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
+						BSS_CHANGED_IBSS);
 	synchronize_rcu();
 	kfree_skb(skb);