diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2013-12-04 23:05:45 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-12-16 11:29:46 +0100 |
| commit | c87820784454bbf7fc63a9e7d9c36762a46f393c (patch) | |
| tree | 2b46b2dded299efa1f07e41cb9ce8ac1750a0a6c /net/mac80211/key.c | |
| parent | d34ba2168a3c10e7301cca06069c39865b4c3ec6 (diff) | |
| download | linux-c87820784454bbf7fc63a9e7d9c36762a46f393c.tar.gz linux-c87820784454bbf7fc63a9e7d9c36762a46f393c.tar.bz2 linux-c87820784454bbf7fc63a9e7d9c36762a46f393c.zip | |
mac80211: move synchronize_net() before sta key removal
There's no reason to do this inside the sta key removal
since the keys can only be reached through the sta (and
not by the driver at all) so once the sta can no longer
be reached, the keys are safe.
This will allow further optimisation opportunities with
multiple stations.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/key.c')
| -rw-r--r-- | net/mac80211/key.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/net/mac80211/key.c b/net/mac80211/key.c index e568d98167d0..12e61543a37c 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -628,8 +628,7 @@ void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata) void ieee80211_free_sta_keys(struct ieee80211_local *local, struct sta_info *sta) { - struct ieee80211_key *key, *tmp; - LIST_HEAD(keys); + struct ieee80211_key *key; int i; mutex_lock(&local->key_mtx); @@ -640,7 +639,7 @@ void ieee80211_free_sta_keys(struct ieee80211_local *local, ieee80211_key_replace(key->sdata, key->sta, key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE, key, NULL); - list_add(&key->list, &keys); + __ieee80211_key_destroy(key, true); } for (i = 0; i < NUM_DEFAULT_KEYS; i++) { @@ -650,17 +649,8 @@ void ieee80211_free_sta_keys(struct ieee80211_local *local, ieee80211_key_replace(key->sdata, key->sta, key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE, key, NULL); - list_add(&key->list, &keys); - } - - /* - * NB: the station code relies on this being - * done even if there aren't any keys - */ - synchronize_net(); - - list_for_each_entry_safe(key, tmp, &keys, list) __ieee80211_key_destroy(key, true); + } mutex_unlock(&local->key_mtx); } |