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authorEric Dumazet <edumazet@google.com>2013-10-18 14:43:55 -0700
committerDavid S. Miller <davem@davemloft.net>2013-10-19 19:14:14 -0400
commitb917eb155c56bbb766140b406979820e719e3f55 (patch)
treee693e13064475ef6a942188a1f43a2c8aefce689 /net
parentbe2net: Rework PCIe error report log messaging (diff)
downloadlinux-dev-b917eb155c56bbb766140b406979820e719e3f55.tar.xz
linux-dev-b917eb155c56bbb766140b406979820e719e3f55.zip
ipv6: gso: remove redundant locking
ipv6_gso_send_check() and ipv6_gso_segment() are called by skb_mac_gso_segment() under rcu lock, no need to use rcu_read_lock() / rcu_read_unlock() Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/ip6_offload.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index d82de7228100..b405fba91c72 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -66,7 +66,6 @@ static int ipv6_gso_send_check(struct sk_buff *skb)
__skb_pull(skb, sizeof(*ipv6h));
err = -EPROTONOSUPPORT;
- rcu_read_lock();
ops = rcu_dereference(inet6_offloads[
ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr)]);
@@ -74,7 +73,6 @@ static int ipv6_gso_send_check(struct sk_buff *skb)
skb_reset_transport_header(skb);
err = ops->callbacks.gso_send_check(skb);
}
- rcu_read_unlock();
out:
return err;
@@ -113,13 +111,12 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
segs = ERR_PTR(-EPROTONOSUPPORT);
proto = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
- rcu_read_lock();
+
ops = rcu_dereference(inet6_offloads[proto]);
if (likely(ops && ops->callbacks.gso_segment)) {
skb_reset_transport_header(skb);
segs = ops->callbacks.gso_segment(skb, features);
}
- rcu_read_unlock();
if (IS_ERR(segs))
goto out;