mac80211: fix incorrect mesh header length

This should have been updated at the same time we were transitioning from 3 byte
to 4 byte mesh sequence number. Pointed out by Johannes Berg.
Signed-off-by: NLuis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

net/mac80211/mesh.c

@@ -397,7 +397,7 @@ int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
 	put_unaligned(cpu_to_le32(sdata->u.sta.mesh_seqnum), &meshhdr->seqnum);
 	sdata->u.sta.mesh_seqnum++;
 
-	return 5;
+	return 6;
 }
 
 void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)

net/mac80211/util.c

@@ -153,15 +153,15 @@ int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
 	/* 7.1.3.5a.2 */
 	switch (ae) {
 	case 0:
-		return 5;
+		return 6;
 	case 1:
-		return 11;
+		return 12;
 	case 2:
-		return 17;
+		return 18;
 	case 3:
-		return 23;
+		return 24;
 	default:
-		return 5;
+		return 6;
 	}
 }