diff options
| author |   Tom Herbert <therbert@google.com> | 2014-05-02 16:29:38 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-05-05 15:26:30 -0400 |
| commit | ed70fcfcee953a76028bfc3f963d2167c2990020 (patch) | |
| tree | 567f28e17c5a2e5a8dde4821d37a7a5d67a3c4bd /net/ipv4/tcp_ipv4.c | |
| parent | net: Generalize checksum_init functions (diff) | |
| download | linux-dev-ed70fcfcee953a76028bfc3f963d2167c2990020.tar.xz linux-dev-ed70fcfcee953a76028bfc3f963d2167c2990020.zip | |
net: Call skb_checksum_init in IPv4
Call skb_checksum_init instead of private functions.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 25 |
1 files changed, 2 insertions, 23 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 438f3b95143d..ad166dcc278f 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1744,28 +1744,6 @@ static struct sock *tcp_v4_hnd_req(struct sock *sk, struct sk_buff *skb) return sk; } -static __sum16 tcp_v4_checksum_init(struct sk_buff *skb) -{ - const struct iphdr *iph = ip_hdr(skb); - - if (skb->ip_summed == CHECKSUM_COMPLETE) { - if (!tcp_v4_check(skb->len, iph->saddr, - iph->daddr, skb->csum)) { - skb->ip_summed = CHECKSUM_UNNECESSARY; - return 0; - } - } - - skb->csum = csum_tcpudp_nofold(iph->saddr, iph->daddr, - skb->len, IPPROTO_TCP, 0); - - if (skb->len <= 76) { - return __skb_checksum_complete(skb); - } - return 0; -} - - /* The socket must have it's spinlock held when we get * here. * @@ -1960,7 +1938,8 @@ int tcp_v4_rcv(struct sk_buff *skb) * Packet length and doff are validated by header prediction, * provided case of th->doff==0 is eliminated. * So, we defer the checks. */ - if (!skb_csum_unnecessary(skb) && tcp_v4_checksum_init(skb)) + + if (skb_checksum_init(skb, IPPROTO_TCP, inet_compute_pseudo)) goto csum_error; th = tcp_hdr(skb); |