Commit 0e4e4220 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller
Browse files

[NET]: Optimize pskb_trim_rcsum() 



Since packets almost never contain extra garbage at the end, it is
worthwhile to optimize for that case.

Signed-off-by: default avatarStephen Hemminger <shemminger@osdl.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1b11d78c

include/linux/skbuff.h

+1 −1
Original line number Diff line number Diff line
@@ -1167,7 +1167,7 @@ static inline void skb_postpull_rcsum(struct sk_buff *skb, 


static inline int pskb_trim_rcsum(struct sk_buff *skb, unsigned int len)

{

	if (len >= skb->len)

	if (likely(len >= skb->len))

		return 0;

	if (skb->ip_summed == CHECKSUM_HW)

		skb->ip_summed = CHECKSUM_NONE;