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authorDavid S. Miller <davem@davemloft.net>2016-04-08 16:41:28 -0400
committerDavid S. Miller <davem@davemloft.net>2016-04-08 16:41:28 -0400
commit30d237a6c2e9be1bb816fe8e787b88fd7aad833b (patch)
treecd13b626214c43071bdb223e45654b4f06e16271 /net/mac80211/sta_info.c
parent3430284feab3caacf94984400c6e84d0858de880 (diff)
parentb4201cc4fc6e1c57d6d306b1f787865043d60129 (diff)
Merge tag 'mac80211-for-davem-2016-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says: ==================== For the current RC series, we have the following fixes: * TDLS fixes from Arik and Ilan * rhashtable fixes from Ben and myself * documentation fixes from Luis * U-APSD fixes from Emmanuel * a TXQ fix from Felix * and a compiler warning suppression from Jeff ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac80211/sta_info.c')
-rw-r--r--net/mac80211/sta_info.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index d20bab5c146c..861b93ffbe92 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -67,6 +67,7 @@
static const struct rhashtable_params sta_rht_params = {
.nelem_hint = 3, /* start small */
+ .insecure_elasticity = true, /* Disable chain-length checks. */
.automatic_shrinking = true,
.head_offset = offsetof(struct sta_info, hash_node),
.key_offset = offsetof(struct sta_info, addr),
@@ -258,11 +259,11 @@ void sta_info_free(struct ieee80211_local *local, struct sta_info *sta)
}
/* Caller must hold local->sta_mtx */
-static void sta_info_hash_add(struct ieee80211_local *local,
- struct sta_info *sta)
+static int sta_info_hash_add(struct ieee80211_local *local,
+ struct sta_info *sta)
{
- rhashtable_insert_fast(&local->sta_hash, &sta->hash_node,
- sta_rht_params);
+ return rhashtable_insert_fast(&local->sta_hash, &sta->hash_node,
+ sta_rht_params);
}
static void sta_deliver_ps_frames(struct work_struct *wk)
@@ -524,7 +525,9 @@ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU)
set_sta_flag(sta, WLAN_STA_BLOCK_BA);
/* make the station visible */
- sta_info_hash_add(local, sta);
+ err = sta_info_hash_add(local, sta);
+ if (err)
+ goto out_drop_sta;
list_add_tail_rcu(&sta->list, &local->sta_list);
@@ -557,6 +560,7 @@ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU)
out_remove:
sta_info_hash_del(local, sta);
list_del_rcu(&sta->list);
+ out_drop_sta:
local->num_sta--;
synchronize_net();
__cleanup_single_sta(sta);