wifi: mac80211: Print local link address during authentication

To ease debugging, mostly in cases that authentication fails.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230827135854.9c08605e2691.I0032e9d6e01325862189e4a20b02ddbe8f2f5e75@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/mlme.c

@@ -7018,6 +7018,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_mgd_auth_data *auth_data;
+	struct ieee80211_link_data *link;
 	u16 auth_alg;
 	int err;
 	bool cont_auth;
@@ -7143,8 +7144,6 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 					    false);
 	}
 
-	sdata_info(sdata, "authenticate with %pM\n", auth_data->ap_addr);
-
 	/* needed for transmitting the auth frame(s) properly */
 	memcpy(sdata->vif.cfg.ap_addr, auth_data->ap_addr, ETH_ALEN);
 
@@ -7153,6 +7152,19 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 	if (err)
 		goto err_clear;
 
+	if (req->link_id > 0)
+		link = sdata_dereference(sdata->link[req->link_id], sdata);
+	else
+		link = sdata_dereference(sdata->link[0], sdata);
+
+	if (WARN_ON(!link)) {
+		err = -ENOLINK;
+		goto err_clear;
+	}
+
+	sdata_info(sdata, "authenticate with %pM (local address=%pM)\n",
+		   auth_data->ap_addr, link->conf->addr);
+
 	err = ieee80211_auth(sdata);
 	if (err) {
 		sta_info_destroy_addr(sdata, auth_data->ap_addr);