From: Wei Wang <wei...@google.com>
In ipv6 tx path, rcu_read_lock() is taken so that dst won't get freed
during the execution of ip6_fragment(). Hence, no need to hold dst in
it.
Signed-off-by: Wei Wang <wei...@google.com>
Acked-by: Martin KaFai Lau <ka...@fb.com>
---
net/ipv6/ip6_output.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 8b8efb0e55bf..5baa6fab4b97 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -698,8 +698,6 @@ int ip6_fragment(struct net *net, struct sock *sk, struct
sk_buff *skb,
ipv6_hdr(skb)->payload_len = htons(first_len -
sizeof(struct ipv6hdr));
- dst_hold(&rt->dst);
-
for (;;) {
/* Prepare header of the next frame,
* before previous one went down. */
@@ -742,7 +740,6 @@ int ip6_fragment(struct net *net, struct sock *sk, struct
sk_buff *skb,
if (err == 0) {
IP6_INC_STATS(net, ip6_dst_idev(&rt->dst),
IPSTATS_MIB_FRAGOKS);
- ip6_rt_put(rt);
return 0;
}
@@ -750,7 +747,6 @@ int ip6_fragment(struct net *net, struct sock *sk, struct
sk_buff *skb,
IP6_INC_STATS(net, ip6_dst_idev(&rt->dst),
IPSTATS_MIB_FRAGFAILS);
- ip6_rt_put(rt);
return err;
slow_path_clean:
--
2.13.1.518.g3df882009-goog
