aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/generic/pending-5.4/616-net_optimize_xfrm_calls.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/generic/pending-5.4/616-net_optimize_xfrm_calls.patch')
-rw-r--r--target/linux/generic/pending-5.4/616-net_optimize_xfrm_calls.patch20
1 files changed, 20 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.4/616-net_optimize_xfrm_calls.patch b/target/linux/generic/pending-5.4/616-net_optimize_xfrm_calls.patch
new file mode 100644
index 0000000000..6a5801027c
--- /dev/null
+++ b/target/linux/generic/pending-5.4/616-net_optimize_xfrm_calls.patch
@@ -0,0 +1,20 @@
+From: Felix Fietkau <nbd@nbd.name>
+Subject: kernel: add a small xfrm related performance optimization
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+ net/netfilter/nf_nat_core.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/net/netfilter/nf_nat_core.c
++++ b/net/netfilter/nf_nat_core.c
+@@ -110,6 +110,9 @@ int nf_xfrm_me_harder(struct net *net, s
+ struct sock *sk = skb->sk;
+ int err;
+
++ if (skb->dev && !dev_net(skb->dev)->xfrm.policy_count[XFRM_POLICY_OUT])
++ return 0;
++
+ err = xfrm_decode_session(skb, &fl, family);
+ if (err < 0)
+ return err;