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Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
-rw-r--r--net/ipv4/tcp_ipv4.c66
1 files changed, 1 insertions, 65 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index d20ede0c959..289039b4d8d 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -545,8 +545,7 @@ out:
sock_put(sk);
}
-static void __tcp_v4_send_check(struct sk_buff *skb,
- __be32 saddr, __be32 daddr)
+void __tcp_v4_send_check(struct sk_buff *skb, __be32 saddr, __be32 daddr)
{
struct tcphdr *th = tcp_hdr(skb);
@@ -571,23 +570,6 @@ void tcp_v4_send_check(struct sock *sk, struct sk_buff *skb)
}
EXPORT_SYMBOL(tcp_v4_send_check);
-int tcp_v4_gso_send_check(struct sk_buff *skb)
-{
- const struct iphdr *iph;
- struct tcphdr *th;
-
- if (!pskb_may_pull(skb, sizeof(*th)))
- return -EINVAL;
-
- iph = ip_hdr(skb);
- th = tcp_hdr(skb);
-
- th->check = 0;
- skb->ip_summed = CHECKSUM_PARTIAL;
- __tcp_v4_send_check(skb, iph->saddr, iph->daddr);
- return 0;
-}
-
/*
* This routine will send an RST to the other tcp.
*
@@ -2795,52 +2777,6 @@ void tcp4_proc_exit(void)
}
#endif /* CONFIG_PROC_FS */
-struct sk_buff **tcp4_gro_receive(struct sk_buff **head, struct sk_buff *skb)
-{
- const struct iphdr *iph = skb_gro_network_header(skb);
- __wsum wsum;
- __sum16 sum;
-
- switch (skb->ip_summed) {
- case CHECKSUM_COMPLETE:
- if (!tcp_v4_check(skb_gro_len(skb), iph->saddr, iph->daddr,
- skb->csum)) {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- break;
- }
-flush:
- NAPI_GRO_CB(skb)->flush = 1;
- return NULL;
-
- case CHECKSUM_NONE:
- wsum = csum_tcpudp_nofold(iph->saddr, iph->daddr,
- skb_gro_len(skb), IPPROTO_TCP, 0);
- sum = csum_fold(skb_checksum(skb,
- skb_gro_offset(skb),
- skb_gro_len(skb),
- wsum));
- if (sum)
- goto flush;
-
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- break;
- }
-
- return tcp_gro_receive(head, skb);
-}
-
-int tcp4_gro_complete(struct sk_buff *skb)
-{
- const struct iphdr *iph = ip_hdr(skb);
- struct tcphdr *th = tcp_hdr(skb);
-
- th->check = ~tcp_v4_check(skb->len - skb_transport_offset(skb),
- iph->saddr, iph->daddr, 0);
- skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4;
-
- return tcp_gro_complete(skb);
-}
-
struct proto tcp_prot = {
.name = "TCP",
.owner = THIS_MODULE,