mac80211: reduce reliance on netdev

For bluetooth 3, we will most likely not have
a netdev for a virtual interface (sdata), so
prepare for that by reducing the reliance on
having a netdev. This patch moves the name
and address fields into the sdata struct and
uses them from there all over. Some work is
needed to keep them sync'ed, but that's not
a lot of work and in slow paths anyway.

In doing so, this also reduces the number of
pointer dereferences in many places, because
of things like sdata->dev->dev_addr becoming
sdata->vif.addr.

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

1 files changed, 3 insertions, 3 deletions

diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 3787455fb696..45ebd062a2fb 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -106,7 +106,7 @@ void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 
 	if (!skb) {
 		printk(KERN_ERR "%s: failed to allocate buffer "
-					"for delba frame\n", sdata->dev->name);
+					"for delba frame\n", sdata->name);
 		return;
 	}
 
@@ -114,10 +114,10 @@ void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
 	memset(mgmt, 0, 24);
 	memcpy(mgmt->da, da, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	if (sdata->vif.type == NL80211_IFTYPE_AP ||
 	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
-		memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
+		memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
 	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);