3 files changed, 10 insertions, 4 deletions

diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index 41a32cd919a..182c9c5c681 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -67,6 +67,7 @@ endmenu
 config MAC80211_MESH
         bool "Enable mac80211 mesh networking (pre-802.11s) support"
         depends on MAC80211 && EXPERIMENTAL
+        depends on BROKEN
         ---help---
          This options enables support of Draft 802.11s mesh networking.
          The implementation is based on Draft 1.08 of the Mesh Networking
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 3c72557df45..479597e8858 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -175,6 +175,8 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata)
         int err = 0;
         u32 hash_idx;
 
+        might_sleep();
+
         if (memcmp(dst, sdata->dev->dev_addr, ETH_ALEN) == 0)
                 /* never add ourselves as neighbours */
                 return -ENOTSUPP;
@@ -265,6 +267,7 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata)
         int err = 0;
         u32 hash_idx;
 
+        might_sleep();
 
         if (memcmp(dst, sdata->dev->dev_addr, ETH_ALEN) == 0)
                 /* never add ourselves as neighbours */
@@ -491,8 +494,10 @@ void mesh_path_tx_pending(struct mesh_path *mpath)
  * @skb: frame to discard
  * @sdata: network subif the frame was to be sent through
  *
- * If the frame was beign forwarded from another MP, a PERR frame will be sent
- * to the precursor.
+ * If the frame was being forwarded from another MP, a PERR frame will be sent
+ * to the precursor.  The precursor's address (i.e. the previous hop) was saved
+ * in addr1 of the frame-to-be-forwarded, and would only be overwritten once
+ * the destination is successfully resolved.
  *
  * Locking: the function must me called within a rcu_read_lock region
  */
@@ -507,7 +512,7 @@ void mesh_path_discard_frame(struct sk_buff *skb,
                 u8 *ra, *da;
 
                 da = hdr->addr3;
-                ra = hdr->addr2;
+                ra = hdr->addr1;
                 mpath = mesh_path_lookup(da, sdata);
                 if (mpath)
                         dsn = ++mpath->dsn;
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 2ffb35d3f56..60ae086995b 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1455,7 +1455,7 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 monitor_iface = UNKNOWN_ADDRESS;
 
                 len_rthdr = ieee80211_get_radiotap_len(skb->data);
-                hdr = (struct ieee80211_hdr *)skb->data + len_rthdr;
+                hdr = (struct ieee80211_hdr *)(skb->data + len_rthdr);
                 hdrlen = ieee80211_hdrlen(hdr->frame_control);
 
                 /* check the header is complete in the frame */