Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...

[pandora-kernel.git] / net / mac80211 / tx.c

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 5950e3a..ffc6749 100644 (file)
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1750,7 +1750,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
        __le16 fc;
        struct ieee80211_hdr hdr;
        struct ieee80211s_hdr mesh_hdr __maybe_unused;
-       struct mesh_path *mppath = NULL;
+       struct mesh_path __maybe_unused *mppath = NULL;
        const u8 *encaps_data;
        int encaps_len, skip_header_bytes;
        int nh_pos, h_pos;
@@ -1815,19 +1815,19 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
                        mppath = mpp_path_lookup(skb->data, sdata);
 
                /*
-                * Do not use address extension, if it is a packet from
-                * the same interface and the destination is not being
-                * proxied by any other mest point.
+                * Use address extension if it is a packet from
+                * another interface or if we know the destination
+                * is being proxied by a portal (i.e. portal address
+                * differs from proxied address)
                 */
                if (compare_ether_addr(sdata->vif.addr,
                                       skb->data + ETH_ALEN) == 0 &&
-                   (!mppath || !compare_ether_addr(mppath->mpp, skb->data))) {
+                   !(mppath && compare_ether_addr(mppath->mpp, skb->data))) {
                        hdrlen = ieee80211_fill_mesh_addresses(&hdr, &fc,
                                        skb->data, skb->data + ETH_ALEN);
                        meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr,
                                        sdata, NULL, NULL);
                } else {
-                       /* packet from other interface */
                        int is_mesh_mcast = 1;
                        const u8 *mesh_da;
 
@@ -2230,6 +2230,9 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 
        sdata = vif_to_sdata(vif);
 
+       if (!ieee80211_sdata_running(sdata))
+               goto out;
+
        if (tim_offset)
                *tim_offset = 0;
        if (tim_length)
@@ -2299,6 +2302,11 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
                struct ieee80211_mgmt *mgmt;
                u8 *pos;
 
+#ifdef CONFIG_MAC80211_MESH
+               if (!sdata->u.mesh.mesh_id_len)
+                       goto out;
+#endif
+
                /* headroom, head length, tail length and maximum TIM length */
                skb = dev_alloc_skb(local->tx_headroom + 400 +
                                sdata->u.mesh.vendor_ie_len);