summaryrefslogtreecommitdiffstats
path: root/net/mac80211/mesh.c
diff options
context:
space:
mode:
authorJohannes Berg <johannes@sipsolutions.net>2008-02-25 16:27:46 +0100
committerJohn W. Linville <linville@tuxdriver.com>2008-03-06 15:30:46 -0500
commitd0709a65181beb787ef3f58cfe45536a2bb254c8 (patch)
tree29e5f36583b0e0a3f11b291347e57672eab41dad /net/mac80211/mesh.c
parent5cf121c3cdb955583bf0c5d28c992b7968a4aa1a (diff)
downloadop-kernel-dev-d0709a65181beb787ef3f58cfe45536a2bb254c8.zip
op-kernel-dev-d0709a65181beb787ef3f58cfe45536a2bb254c8.tar.gz
mac80211: RCU-ify STA info structure access
This makes access to the STA hash table/list use RCU to protect against freeing of items. However, it's not a true RCU, the copy step is missing: whenever somebody changes a STA item it is simply updated. This is an existing race condition that is now somewhat understandable. This patch also fixes the race key freeing vs. STA destruction by making sure that sta_info_destroy() is always called under RTNL and frees the key. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mesh.c')
-rw-r--r--net/mac80211/mesh.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index ebe1a7a..9de1ccc 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -83,11 +83,10 @@ bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie,
/**
* mesh_accept_plinks_update: update accepting_plink in local mesh beacons
*
- * @dev: mesh interface in which mesh beacons are going to be updated
+ * @sdata: mesh interface in which mesh beacons are going to be updated
*/
-void mesh_accept_plinks_update(struct net_device *dev)
+void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
bool free_plinks;
/* In case mesh_plink_free_count > 0 and mesh_plinktbl_capacity == 0,
OpenPOWER on IntegriCloud