From 40e0b09081420853542571c38875b48b60404ebb Mon Sep 17 00:00:00 2001
From: Peilin Ye <peilin.ye@bytedance.com>
Date: Thu, 19 Jan 2023 16:45:16 -0800
Subject: net/sock: Introduce trace_sk_data_ready()

As suggested by Cong, introduce a tracepoint for all ->sk_data_ready()
callback implementations.  For example:

<...>
  iperf-609  [002] .....  70.660425: sk_data_ready: family=2 protocol=6 func=sock_def_readable
  iperf-609  [002] .....  70.660436: sk_data_ready: family=2 protocol=6 func=sock_def_readable
<...>

Suggested-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Peilin Ye <peilin.ye@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sctp/socket.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'net/sctp')

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 84021a6c4f9d..a98511b676cd 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -59,6 +59,7 @@
 #include <net/ipv6.h>
 #include <net/inet_common.h>
 #include <net/busy_poll.h>
+#include <trace/events/sock.h>
 
 #include <linux/socket.h> /* for sa_family_t */
 #include <linux/export.h>
@@ -9244,6 +9245,8 @@ void sctp_data_ready(struct sock *sk)
 {
 	struct socket_wq *wq;
 
+	trace_sk_data_ready(sk);
+
 	rcu_read_lock();
 	wq = rcu_dereference(sk->sk_wq);
 	if (skwq_has_sleeper(wq))
-- 
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