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Subject[PATCH RFC V1 net-next 4/6] net: ipv4: udp: Hook into time based transmission.
Date
For udp packets, copy the desired future transmit time from the CMSG
cookie into the skb.

Signed-off-by: Richard Cochran <rcochran@linutronix.de>
---
net/ipv4/udp.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index ef29df8648e4..669f63495877 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -949,6 +949,7 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
}

ipc.sockc.tsflags = sk->sk_tsflags;
+ ipc.sockc.transmit_time = 0;
ipc.addr = inet->inet_saddr;
ipc.oif = sk->sk_bound_dev_if;

@@ -1050,8 +1051,10 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
sizeof(struct udphdr), &ipc, &rt,
msg->msg_flags);
err = PTR_ERR(skb);
- if (!IS_ERR_OR_NULL(skb))
+ if (!IS_ERR_OR_NULL(skb)) {
+ skb->transmit_time = ipc.sockc.transmit_time;
err = udp_send_skb(skb, fl4);
+ }
goto out;
}

--
2.11.0
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