diff options
| author |   Tom Herbert <therbert@google.com> | 2014-08-22 13:34:04 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-08-24 18:09:23 -0700 |
| commit | 1933a7852ce6a81349855431b25122d7666bbfca (patch) | |
| tree | eae9d27a1800e7b3317aa4441457615858b783f9 | |
| parent | net: skb_gro_checksum_* functions (diff) | |
| download | linux-dev-1933a7852ce6a81349855431b25122d7666bbfca.tar.xz linux-dev-1933a7852ce6a81349855431b25122d7666bbfca.zip | |
net: add gro_compute_pseudo functions
Add inet_gro_compute_pseudo and ip6_gro_compute_pseudo. These are
the logical equivalents of inet_compute_pseudo and ip6_compute_pseudo
for GRO path. The IP header is taken from skb_gro_network_header.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/ip.h | 8 | ||||
| -rw-r--r-- | include/net/ip6_checksum.h | 8 |
2 files changed, 16 insertions, 0 deletions
diff --git a/include/net/ip.h b/include/net/ip.h index db4a771b9ef3..c8fd6112bd0b 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -364,6 +364,14 @@ static inline void inet_set_txhash(struct sock *sk) sk->sk_txhash = flow_hash_from_keys(&keys); } +static inline __wsum inet_gro_compute_pseudo(struct sk_buff *skb, int proto) +{ + const struct iphdr *iph = skb_gro_network_header(skb); + + return csum_tcpudp_nofold(iph->saddr, iph->daddr, + skb_gro_len(skb), proto, 0); +} + /* * Map a multicast IP onto multicast MAC for type ethernet. */ diff --git a/include/net/ip6_checksum.h b/include/net/ip6_checksum.h index 55236cb71174..1a49b73f7f6e 100644 --- a/include/net/ip6_checksum.h +++ b/include/net/ip6_checksum.h @@ -48,6 +48,14 @@ static inline __wsum ip6_compute_pseudo(struct sk_buff *skb, int proto) skb->len, proto, 0)); } +static inline __wsum ip6_gro_compute_pseudo(struct sk_buff *skb, int proto) +{ + const struct ipv6hdr *iph = skb_gro_network_header(skb); + + return ~csum_unfold(csum_ipv6_magic(&iph->saddr, &iph->daddr, + skb_gro_len(skb), proto, 0)); +} + static __inline__ __sum16 tcp_v6_check(int len, const struct in6_addr *saddr, const struct in6_addr *daddr, |