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| author | David S. Miller <davem@davemloft.net> | 2015-06-24 02:58:51 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-06-24 02:58:51 -0700 |
| commit | 3a07bd6fead4f00f67b1bf5f551e686661c4f52c (patch) | |
| tree | f8b8f257d928a9ae1aeb3fdbe748f03f1012f02e /net/mac80211/key.c | |
| parent | 204621551b2a0060a013b92f7add4d5c452fa7cb (diff) | |
| parent | f1590670ce069eefeb93916391a67643e6ad1630 (diff) | |
| download | linux-3a07bd6fead4f00f67b1bf5f551e686661c4f52c.tar.gz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/ethernet/mellanox/mlx4/main.c net/packet/af_packet.c Both conflicts were cases of simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac80211/key.c')
| -rw-r--r-- | net/mac80211/key.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 8abc31ebcf61..b22df3a79a41 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -66,12 +66,15 @@ update_vlan_tailroom_need_count(struct ieee80211_sub_if_data *sdata, int delta) if (sdata->vif.type != NL80211_IFTYPE_AP) return; - mutex_lock(&sdata->local->mtx); + /* crypto_tx_tailroom_needed_cnt is protected by this */ + assert_key_lock(sdata->local); + + rcu_read_lock(); - list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) + list_for_each_entry_rcu(vlan, &sdata->u.ap.vlans, u.vlan.list) vlan->crypto_tx_tailroom_needed_cnt += delta; - mutex_unlock(&sdata->local->mtx); + rcu_read_unlock(); } static void increment_tailroom_need_count(struct ieee80211_sub_if_data *sdata) @@ -95,6 +98,8 @@ static void increment_tailroom_need_count(struct ieee80211_sub_if_data *sdata) * http://mid.gmane.org/1308590980.4322.19.camel@jlt3.sipsolutions.net */ + assert_key_lock(sdata->local); + update_vlan_tailroom_need_count(sdata, 1); if (!sdata->crypto_tx_tailroom_needed_cnt++) { @@ -109,6 +114,8 @@ static void increment_tailroom_need_count(struct ieee80211_sub_if_data *sdata) static void decrease_tailroom_need_count(struct ieee80211_sub_if_data *sdata, int delta) { + assert_key_lock(sdata->local); + WARN_ON_ONCE(sdata->crypto_tx_tailroom_needed_cnt < delta); update_vlan_tailroom_need_count(sdata, -delta); |