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Diffstat (limited to 'net')
-rw-r--r--net/ipv4/tcp_output.c19
-rw-r--r--net/ipv6/tcp_ipv6.c5
2 files changed, 16 insertions, 8 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 29056d6fc787..fdddb16630a5 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1506,6 +1506,16 @@ void tcp_v4_send_check(struct sock *sk, struct sk_buff *skb)
}
EXPORT_IPV6_MOD(tcp_v4_send_check);
+#if IS_ENABLED(CONFIG_IPV6)
+#include <net/ip6_checksum.h>
+
+void tcp_v6_send_check(struct sock *sk, struct sk_buff *skb)
+{
+ __tcp_v6_send_check(skb, &sk->sk_v6_rcv_saddr, &sk->sk_v6_daddr);
+}
+EXPORT_IPV6_MOD(tcp_v6_send_check);
+#endif
+
/* This routine actually transmits TCP packets queued in by
* tcp_do_sendmsg(). This is used by both the initial
* transmission and possible later retransmissions.
@@ -1667,9 +1677,12 @@ static int __tcp_transmit_skb(struct sock *sk, struct sk_buff *skb,
/* BPF prog is the last one writing header option */
bpf_skops_write_hdr_opt(sk, skb, NULL, NULL, 0, &opts);
- INDIRECT_CALL_INET(icsk->icsk_af_ops->send_check,
- tcp_v6_send_check, tcp_v4_send_check,
- sk, skb);
+#if IS_ENABLED(CONFIG_IPV6)
+ if (likely(icsk->icsk_af_ops->send_check == tcp_v6_send_check))
+ tcp_v6_send_check(sk, skb);
+ else
+#endif
+ tcp_v4_send_check(sk, skb);
if (likely(tcb->tcp_flags & TCPHDR_ACK))
tcp_event_ack_sent(sk, rcv_nxt);
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index d10487b4e5bf..306ca0585b4a 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -2015,11 +2015,6 @@ static struct timewait_sock_ops tcp6_timewait_sock_ops = {
.twsk_obj_size = sizeof(struct tcp6_timewait_sock),
};
-INDIRECT_CALLABLE_SCOPE void tcp_v6_send_check(struct sock *sk, struct sk_buff *skb)
-{
- __tcp_v6_send_check(skb, &sk->sk_v6_rcv_saddr, &sk->sk_v6_daddr);
-}
-
const struct inet_connection_sock_af_ops ipv6_specific = {
.queue_xmit = inet6_csk_xmit,
.send_check = tcp_v6_send_check,