From 9449c3cd90472141cf081af88181a56163ff7132 Mon Sep 17 00:00:00 2001 From: Ying Xue Date: Tue, 12 May 2015 18:29:44 +0800 Subject: net: make skb_dst_pop routine static As xfrm_output_one() is the only caller of skb_dst_pop(), we should make skb_dst_pop() localized. Signed-off-by: Ying Xue Signed-off-by: David S. Miller --- net/xfrm/xfrm_output.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'net/xfrm') diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c index fbcedbe33190..68ada2ca4b60 100644 --- a/net/xfrm/xfrm_output.c +++ b/net/xfrm/xfrm_output.c @@ -38,6 +38,18 @@ static int xfrm_skb_check_space(struct sk_buff *skb) return pskb_expand_head(skb, nhead, ntail, GFP_ATOMIC); } +/* Children define the path of the packet through the + * Linux networking. Thus, destinations are stackable. + */ + +static struct dst_entry *skb_dst_pop(struct sk_buff *skb) +{ + struct dst_entry *child = dst_clone(skb_dst(skb)->child); + + skb_dst_drop(skb); + return child; +} + static int xfrm_output_one(struct sk_buff *skb, int err) { struct dst_entry *dst = skb_dst(skb); -- cgit v1.2.3-59-g8ed1b