From 3347c960295583eee3fd58e5c539fb1972fbc005 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sat, 19 Oct 2013 11:42:56 -0700 Subject: ipv4: gso: make inet_gso_segment() stackable In order to support GSO on IPIP, we need to make inet_gso_segment() stackable. It should not assume network header starts right after mac header. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/skbuff.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index ba74474836c0..cad1e0c5cc04 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -2722,9 +2722,12 @@ static inline struct sec_path *skb_sec_path(struct sk_buff *skb) /* Keeps track of mac header offset relative to skb->head. * It is useful for TSO of Tunneling protocol. e.g. GRE. * For non-tunnel skb it points to skb_mac_header() and for - * tunnel skb it points to outer mac header. */ + * tunnel skb it points to outer mac header. + * Keeps track of level of encapsulation of network headers. + */ struct skb_gso_cb { - int mac_offset; + int mac_offset; + int encap_level; }; #define SKB_GSO_CB(skb) ((struct skb_gso_cb *)(skb)->cb) -- cgit v1.2.3