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From: Steven Rostedt <rostedt@goodmis.org>
To: Randy Dunlap <rdunlap@infradead.org>
Cc: linux-kernel@vger.kernel.org,
	Matthew Wilcox <willy@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Daniel Bristot de Oliveira <bristot@redhat.com>
Subject: Re: [PATCH] trace: eradicate noisy warning in trace_osnoise.c
Date: Fri, 30 Jul 2021 20:40:50 -0400	[thread overview]
Message-ID: <20210730204050.46975ae2@oasis.local.home> (raw)
In-Reply-To: <20210731000055.28876-1-rdunlap@infradead.org>

On Fri, 30 Jul 2021 17:00:55 -0700
Randy Dunlap <rdunlap@infradead.org> wrote:

> OK, I'm officially tired of this noise warning coming from
> trace_osnoise.c, so shut it up. Also, adding new warnings is not OK.

I agree adding "new warnings" is not OK, but this is a stupid warning.

> 
> ../kernel/trace/trace_osnoise.c: In function ‘start_kthread’:
> ../kernel/trace/trace_osnoise.c:1461:8: warning: ‘main’ is usually a function [-Wmain]
>   void *main = osnoise_main;
>         ^~~~
> 
> Fixes: c8895e271f79 ("trace/osnoise: Support hotplug operations")
> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
> Suggested-by: Matthew Wilcox <willy@infradead.org>
> Cc: Steven Rostedt <rostedt@goodmis.org>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
> ---
>  kernel/trace/Makefile |    2 ++
>  1 file changed, 2 insertions(+)
> 
> --- mmotm-2021-0728-1824.orig/kernel/trace/Makefile
> +++ mmotm-2021-0728-1824/kernel/trace/Makefile
> @@ -36,6 +36,8 @@ CFLAGS_bpf_trace.o := -I$(src)
>  CFLAGS_trace_benchmark.o := -I$(src)
>  CFLAGS_trace_events_filter.o := -I$(src)
>  
> +CFLAGS_trace_osnoise.o := -Wno-main

Why just add it here. It's a silly warning to have for the kernel at
all. Should this not be added in a more global place?

-- Steve


> +
>  obj-$(CONFIG_TRACE_CLOCK) += trace_clock.o
>  
>  obj-$(CONFIG_FUNCTION_TRACER) += libftrace.o


  reply	other threads:[~2021-07-31  0:41 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-31  0:00 Randy Dunlap
2021-07-31  0:40 ` Steven Rostedt [this message]
2021-07-31  1:11   ` Randy Dunlap
2021-08-02  7:58     ` Daniel Bristot de Oliveira
2021-08-03  4:12       ` Randy Dunlap

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