Commit 04fb451e authored by Michał Mirosław's avatar Michał Mirosław Committed by David S. Miller
Browse files

net: Introduce skb_checksum_start_offset() 



Introduce skb_checksum_start_offset() to replace repetitive calculation.

Signed-off-by: default avatarMichał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bc2ce894

include/linux/skbuff.h

+5 −0
Original line number Diff line number Diff line
@@ -1355,6 +1355,11 @@ static inline void skb_set_mac_header(struct sk_buff *skb, const int offset) 
}

#endif /* NET_SKBUFF_DATA_USES_OFFSET */



static inline int skb_checksum_start_offset(const struct sk_buff *skb)

{

	return skb->csum_start - skb_headroom(skb);

}



static inline int skb_transport_offset(const struct sk_buff *skb)

{

	return skb_transport_header(skb) - skb->data;