mac80211: use fixed broadcast address

The netdev broadcast address cannot change from
all-ones so there's no need to use it; we can
instead hard-code it. Since we already have an
instance in tkip.c, which will be shared if it
is marked static const, doing this reduces text
size at no data/bss cost.

The real motivation for this is, of course, the
desire to get rid of almost all uses of netdevs
in mac80211 so that auditing their use becomes
easier.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 5399e7a9ec6e..3fbabbf34ea5 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -449,6 +449,7 @@ err_path_alloc:
  */
 void mesh_plink_broken(struct sta_info *sta)
 {
+        static const u8 bcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
         struct mesh_path *mpath;
         struct mpath_node *node;
         struct hlist_node *p;
@@ -468,7 +469,7 @@ void mesh_plink_broken(struct sta_info *sta)
                         mesh_path_error_tx(MESH_TTL, mpath->dst,
                                         cpu_to_le32(mpath->sn),
                                         PERR_RCODE_DEST_UNREACH,
-                                        sdata->dev->broadcast, sdata);
+                                        bcast, sdata);
                 } else
                 spin_unlock_bh(&mpath->state_lock);
         }