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authorJavier Cardona <javier@cozybit.com>2009-07-14 04:00:10 +0400
committerJohn W. Linville <linville@tuxdriver.com>2009-07-21 20:07:40 +0400
commit35946a571099a50d2595c8866f07617d29558f53 (patch)
tree6ebcff064919ba40cef1fab8b42c17efc4c37e2d /net/mac80211/mesh_pathtbl.c
parente603d9d824ff0eda98a65708a7e82112becf2dca (diff)
downloadlinux-35946a571099a50d2595c8866f07617d29558f53.tar.xz
mac80211: use correct address for mesh Path Error
For forwarded frames, we save the precursor address in addr1 in case it needs to be used to send a Path Error. mesh_path_discard_frame, however, was using addr2 instead of addr1 to send Path Error frames, so correct that and also make the comment regarding this more clear. Signed-off-by: Andrey Yurovsky <andrey@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mesh_pathtbl.c')
-rw-r--r--net/mac80211/mesh_pathtbl.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 02f8709a181e..479597e88583 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -494,8 +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
*/
@@ -510,7 +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;