[08/22] netfilter: bridge: remove unneeded rcu_read_lock

Submitted by Pablo Neira on March 20, 2017, 10:08 a.m.

Details

Message ID 1490004530-9128-9-git-send-email-pablo@netfilter.org
State Accepted
Delegated to: Pablo Neira
Headers show

Commit Message

Pablo Neira March 20, 2017, 10:08 a.m.
From: Florian Westphal <fw@strlen.de>

as comment says, the function is always called with rcu read lock held.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/bridge/br_netfilter_hooks.c | 3 ---
 1 file changed, 3 deletions(-)

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diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c
index 95087e6e8258..52739e6c610e 100644
--- a/net/bridge/br_netfilter_hooks.c
+++ b/net/bridge/br_netfilter_hooks.c
@@ -1016,13 +1016,10 @@  int br_nf_hook_thresh(unsigned int hook, struct net *net,
 	if (!elem)
 		return okfn(net, sk, skb);
 
-	/* We may already have this, but read-locks nest anyway */
-	rcu_read_lock();
 	nf_hook_state_init(&state, hook, NFPROTO_BRIDGE, indev, outdev,
 			   sk, net, okfn);
 
 	ret = nf_hook_slow(skb, &state, elem);
-	rcu_read_unlock();
 	if (ret == 1)
 		ret = okfn(net, sk, skb);