mac80211: remove SSID driver code

Remove the SSID from the driver API since now there is no
driver that requires knowing the SSID and I think it's
unlikely that any hardware design that does require the
SSID will play well with mac80211.

This also removes support for setting the SSID in master
mode which will require a patch to hostapd to not try.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

4 files changed, 3 insertions, 45 deletions

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 2c91108e..155a2041 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -212,9 +212,6 @@ struct ieee80211_if_ap {
 
 	struct list_head vlans;
 
-	u8 ssid[IEEE80211_MAX_SSID_LEN];
-	size_t ssid_len;
-
 	/* yes, this looks ugly, but guarantees that we can later use
 	 * bitmap_empty :)
 	 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index fa0cc7a..d631dc9 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -171,19 +171,13 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
 	conf.changed = changed;
 
 	if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-	    sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+	    sdata->vif.type == NL80211_IFTYPE_ADHOC)
 		conf.bssid = sdata->u.sta.bssid;
-		conf.ssid = sdata->u.sta.ssid;
-		conf.ssid_len = sdata->u.sta.ssid_len;
-	} else if (sdata->vif.type == NL80211_IFTYPE_AP) {
+	else if (sdata->vif.type == NL80211_IFTYPE_AP)
 		conf.bssid = sdata->dev->dev_addr;
-		conf.ssid = sdata->u.ap.ssid;
-		conf.ssid_len = sdata->u.ap.ssid_len;
-	} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
+	else if (ieee80211_vif_is_mesh(&sdata->vif)) {
 		u8 zero[ETH_ALEN] = { 0 };
 		conf.bssid = zero;
-		conf.ssid = zero;
-		conf.ssid_len = 0;
 	} else {
 		WARN_ON(1);
 		return -EINVAL;
@@ -192,9 +186,6 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
 	if (WARN_ON(!conf.bssid && (changed & IEEE80211_IFCC_BSSID)))
 		return -EINVAL;
 
-	if (WARN_ON(!conf.ssid && (changed & IEEE80211_IFCC_SSID)))
-		return -EINVAL;
-
 	return local->ops->config_interface(local_to_hw(local),
 					    &sdata->vif, &conf);
 }
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 9e6c75a..708eb45 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2416,7 +2416,6 @@ void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
 int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len)
 {
 	struct ieee80211_if_sta *ifsta;
-	int res;
 
 	if (len > IEEE80211_MAX_SSID_LEN)
 		return -EINVAL;
@@ -2428,19 +2427,6 @@ int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size
 		memcpy(ifsta->ssid, ssid, len);
 		ifsta->ssid_len = len;
 		ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
-
-		res = 0;
-		/*
-		 * Hack! MLME code needs to be cleaned up to have different
-		 * entry points for configuration and internal selection change
-		 */
-		if (netif_running(sdata->dev))
-			res = ieee80211_if_config(sdata, IEEE80211_IFCC_SSID);
-		if (res) {
-			printk(KERN_DEBUG "%s: Failed to config new SSID to "
-			       "the low-level driver\n", sdata->dev->name);
-			return res;
-		}
 	}
 
 	if (len)
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 231cab5..63f36e9 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -407,13 +407,6 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
 		return 0;
 	}
 
-	if (sdata->vif.type == NL80211_IFTYPE_AP) {
-		memcpy(sdata->u.ap.ssid, ssid, len);
-		memset(sdata->u.ap.ssid + len, 0,
-		       IEEE80211_MAX_SSID_LEN - len);
-		sdata->u.ap.ssid_len = len;
-		return ieee80211_if_config(sdata, IEEE80211_IFCC_SSID);
-	}
 	return -EOPNOTSUPP;
 }
 
@@ -437,15 +430,6 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev,
 		return res;
 	}
 
-	if (sdata->vif.type == NL80211_IFTYPE_AP) {
-		len = sdata->u.ap.ssid_len;
-		if (len > IW_ESSID_MAX_SIZE)
-			len = IW_ESSID_MAX_SIZE;
-		memcpy(ssid, sdata->u.ap.ssid, len);
-		data->length = len;
-		data->flags = 1;
-		return 0;
-	}
 	return -EOPNOTSUPP;
 }