mac80211: Mark a destination sequence number as valid when a PREQ is received.

If a PREQ frame is received giving us a fresher DSN than what we have, record
the new dsn and mark it as valid.  This patch fixes a bug in the setting of the
MESH_PATH_DSN_VALID flag.

Also, minor fix to coding style on that file.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 1cd1e7273085..ef1efd362691 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -397,7 +397,8 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
 
 static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
                                     struct ieee80211_mgmt *mgmt,
-                                    u8 *preq_elem, u32 metric) {
+                                    u8 *preq_elem, u32 metric)
+{
         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
         struct mesh_path *mpath;
         u8 *dst_addr, *orig_addr;
@@ -430,7 +431,7 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
                         if ((!(mpath->flags & MESH_PATH_DSN_VALID)) ||
                                         DSN_LT(mpath->dsn, dst_dsn)) {
                                 mpath->dsn = dst_dsn;
-                                mpath->flags &= MESH_PATH_DSN_VALID;
+                                mpath->flags |= MESH_PATH_DSN_VALID;
                         } else if ((!(dst_flags & MP_F_DO)) &&
                                         (mpath->flags & MESH_PATH_ACTIVE)) {
                                 reply = true;