tcp: export timestamp helpers for mptcp
MPTCP is builtin, so no need to add EXPORT_SYMBOL()s.
It will be used to support SO_TIMESTAMP(NS) ancillary
messages in the mptcp receive path.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index f1c1f9e..0e3f0e0 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1738,8 +1738,8 @@ int tcp_set_rcvlowat(struct sock *sk, int val)
}
EXPORT_SYMBOL(tcp_set_rcvlowat);
-static void tcp_update_recv_tstamps(struct sk_buff *skb,
- struct scm_timestamping_internal *tss)
+void tcp_update_recv_tstamps(struct sk_buff *skb,
+ struct scm_timestamping_internal *tss)
{
if (skb->tstamp)
tss->ts[0] = ktime_to_timespec64(skb->tstamp);
@@ -2024,8 +2024,6 @@ static int tcp_zerocopy_vm_insert_batch(struct vm_area_struct *vma,
}
#define TCP_VALID_ZC_MSG_FLAGS (TCP_CMSG_TS)
-static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk,
- struct scm_timestamping_internal *tss);
static void tcp_zc_finalize_rx_tstamp(struct sock *sk,
struct tcp_zerocopy_receive *zc,
struct scm_timestamping_internal *tss)
@@ -2197,8 +2195,8 @@ static int tcp_zerocopy_receive(struct sock *sk,
#endif
/* Similar to __sock_recv_timestamp, but does not require an skb */
-static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk,
- struct scm_timestamping_internal *tss)
+void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk,
+ struct scm_timestamping_internal *tss)
{
int new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW);
bool has_timestamping = false;