[PATCH v2 net-next 2/6] tcp: mark trace event arguments sk and skb as const
From: Song Liu <hidden>
Date: 2017-10-23 16:20:57
Subsystem:
networking [tcp], the rest, tracing · Maintainers:
Eric Dumazet, Neal Cardwell, Linus Torvalds, Steven Rostedt, Masami Hiramatsu
Some functions that we plan to add trace points require const sk and/or skb. So we mark these fields as const in the tracepoint. Signed-off-by: Song Liu <redacted> --- include/trace/events/tcp.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/trace/events/tcp.h b/include/trace/events/tcp.h
index 14b0a708..2b6fe72 100644
--- a/include/trace/events/tcp.h
+++ b/include/trace/events/tcp.h@@ -17,13 +17,13 @@ */ DECLARE_EVENT_CLASS(tcp_event_sk_skb, - TP_PROTO(struct sock *sk, struct sk_buff *skb), + TP_PROTO(const struct sock *sk, const struct sk_buff *skb), TP_ARGS(sk, skb), TP_STRUCT__entry( - __field(void *, skbaddr) - __field(void *, skaddr) + __field(const void *, skbaddr) + __field(const void *, skaddr) __field(__u16, sport) __field(__u16, dport) __array(__u8, saddr, 4)
@@ -72,7 +72,7 @@ DECLARE_EVENT_CLASS(tcp_event_sk_skb, DEFINE_EVENT(tcp_event_sk_skb, tcp_retransmit_skb, - TP_PROTO(struct sock *sk, struct sk_buff *skb), + TP_PROTO(const struct sock *sk, const struct sk_buff *skb), TP_ARGS(sk, skb) );
--
2.9.5