linux-kernel - Re: [PATCH v3] tracepoint: add new `tcp:tcp_ca

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Date:   Sat, 12 Aug 2023 18:17:17 -0700
From:   Joe Perches <joe@...ches.com>
To:     Steven Rostedt <rostedt@...dmis.org>, Zheao Li <me@...jusaka.me>
Cc:     edumazet@...gle.com, bpf@...r.kernel.org, davem@...emloft.net,
        dsahern@...nel.org, kuba@...nel.org, linux-kernel@...r.kernel.org,
        linux-trace-kernel@...r.kernel.org, mhiramat@...nel.org,
        ncardwell@...gle.com, netdev@...r.kernel.org, pabeni@...hat.com
Subject: Re: [PATCH v3] tracepoint: add new `tcp:tcp_ca_event` trace event

On Sat, 2023-08-12 at 21:04 -0400, Steven Rostedt wrote:
> On Sat, 12 Aug 2023 21:01:40 -0400
> Steven Rostedt <rostedt@...dmis.org> wrote:
> 
> > On Sat, 12 Aug 2023 20:59:05 -0400
> > Steven Rostedt <rostedt@...dmis.org> wrote:
> > 
> > > On Sat, 12 Aug 2023 20:12:50 +0000
> > > Zheao Li <me@...jusaka.me> wrote:
> > >   
> > > > +TRACE_EVENT(tcp_ca_event,
> > > > +
> > > > +	TP_PROTO(struct sock *sk, const u8 ca_event),
> > > > +
> > > > +	TP_ARGS(sk, ca_event),
> > > > +
> > > > +	TP_STRUCT__entry(
> > > > +		__field(const void *, skaddr)
> > > > +		__field(__u16, sport)
> > > > +		__field(__u16, dport)
> > > > +		__field(__u16, family)
> > > > +		__array(__u8, saddr, 4)
> > > > +		__array(__u8, daddr, 4)
> > > > +		__array(__u8, saddr_v6, 16)
> > > > +		__array(__u8, daddr_v6, 16)
> > > > +		__field(__u8, ca_event)    
> > > 
> > > Please DO NOT LISTEN TO CHECKPATCH!
> 
> I forgot to say "for TRACE_EVENT() macros". This is not about what
> checkpatch says about other code.

trace has its own code style and checkpatch needs another
parsing mechanism just for it, including the alignment to
open parenthesis test.