diff options
| author | Alexander Aring <alex.aring@gmail.com> | 2014-10-27 17:13:39 +0100 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2014-10-27 18:07:45 +0100 |
| commit | e176b681b00d2b60e9231072d3ca841f9ddc74ea (patch) | |
| tree | ede73bf25281f0689606ef2ceb35dfd74976e5e4 /net/mac802154/rx.c | |
| parent | 9cf215d0733256687796ef1161b7b358be1b0602 (diff) | |
| download | linux-e176b681b00d2b60e9231072d3ca841f9ddc74ea.tar.bz2 | |
mac802154: rx: move rcu locking
Instead of twice lock and unlock mechanism this patch hold these locks
only once at one position.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/mac802154/rx.c')
| -rw-r--r-- | net/mac802154/rx.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/mac802154/rx.c b/net/mac802154/rx.c index c2999804126a..689bb7ff5b2a 100644 --- a/net/mac802154/rx.c +++ b/net/mac802154/rx.c @@ -205,7 +205,6 @@ mac802154_wpans_rx(struct ieee802154_local *local, struct sk_buff *skb) return; } - rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { if (sdata->type != IEEE802154_DEV_WPAN || !netif_running(sdata->dev)) @@ -215,7 +214,6 @@ mac802154_wpans_rx(struct ieee802154_local *local, struct sk_buff *skb) skb = NULL; break; } - rcu_read_unlock(); if (skb) kfree_skb(skb); @@ -234,7 +232,6 @@ mac802154_monitors_rx(struct ieee802154_local *local, struct sk_buff *skb) skb->pkt_type = PACKET_OTHERHOST; skb->protocol = htons(ETH_P_IEEE802154); - rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { if (sdata->type != IEEE802154_DEV_MONITOR || !netif_running(sdata->dev)) @@ -249,7 +246,6 @@ mac802154_monitors_rx(struct ieee802154_local *local, struct sk_buff *skb) netif_rx_ni(skb2); } - rcu_read_unlock(); } void ieee802154_rx(struct ieee802154_hw *hw, struct sk_buff *skb) @@ -273,9 +269,13 @@ void ieee802154_rx(struct ieee802154_hw *hw, struct sk_buff *skb) skb_trim(skb, skb->len - 2); /* CRC */ } + rcu_read_lock(); + mac802154_monitors_rx(local, skb); mac802154_wpans_rx(local, skb); + rcu_read_unlock(); + return; fail: |