1 files changed, 10 insertions, 4 deletions

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 68c2fbd16ebb..5950e3abead9 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1750,6 +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;
         const u8 *encaps_data;
         int encaps_len, skip_header_bytes;
         int nh_pos, h_pos;
@@ -1810,16 +1811,23 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
                         ret = NETDEV_TX_OK;
                         goto fail;
                 }
+                if (!is_multicast_ether_addr(skb->data))
+                        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.
+                 */
                 if (compare_ether_addr(sdata->vif.addr,
-                                       skb->data + ETH_ALEN) == 0) {
+                                       skb->data + ETH_ALEN) == 0 &&
+                    (!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 */
-                        struct mesh_path *mppath;
                         int is_mesh_mcast = 1;
                         const u8 *mesh_da;
 
@@ -1830,8 +1838,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
                         else {
                                 static const u8 bcast[ETH_ALEN] =
                                         { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
-
-                                mppath = mpp_path_lookup(skb->data, sdata);
                                 if (mppath) {
                                         /* RA TA mDA mSA AE:DA SA */
                                         mesh_da = mppath->mpp;