[PATCH v1 net-next 4/5] ipv6: exthdrs: Reload hdr only when needed in ipv6_srh_rcv().

[Kuniyuki Iwashima <kuniyu@amazon.com>]

We need not reload hdr in ipv6_srh_rcv() unless we call
pskb_expand_head().

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
---
 net/ipv6/exthdrs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index e62e26ac99ef..dd23531387e3 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -440,9 +440,9 @@ static int ipv6_srh_rcv(struct sk_buff *skb)
 			kfree_skb(skb);
 			return -1;
 		}
-	}
 
-	hdr = (struct ipv6_sr_hdr *)skb_transport_header(skb);
+		hdr = (struct ipv6_sr_hdr *)skb_transport_header(skb);
+	}
 
 	hdr->segments_left--;
 	addr = hdr->segments + hdr->segments_left;
-- 
2.30.2