linux-kernel - Re: [PATCH] ftrace: set direct_ops storage-class-specifier to static

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Message-Id: <20230315174845.c4bcf7a75ff5f644bef7b07a@kernel.org>
Date:   Wed, 15 Mar 2023 17:48:45 +0900
From:   Masami Hiramatsu (Google) <mhiramat@...nel.org>
To:     Tom Rix <trix@...hat.com>
Cc:     rostedt@...dmis.org, mark.rutland@....com,
        linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH] ftrace: set direct_ops storage-class-specifier to
 static

On Sat, 11 Mar 2023 08:51:13 -0500
Tom Rix <trix@...hat.com> wrote:

> smatch reports this warning
> kernel/trace/ftrace.c:2594:19: warning:
>   symbol 'direct_ops' was not declared. Should it be static?
> 
> The variable direct_ops is only used in ftrace.c, so it should be static
> 
> Signed-off-by: Tom Rix <trix@...hat.com>

This looks good to me.

Acked-by: Masami Hiramatsu (Google) <mhiramat@...nel.org>

Thank you!

> ---
>  kernel/trace/ftrace.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
> index 29baa97d0d53..05f76dc1f0c5 100644
> --- a/kernel/trace/ftrace.c
> +++ b/kernel/trace/ftrace.c
> @@ -2591,7 +2591,7 @@ static void call_direct_funcs(unsigned long ip, unsigned long pip,
>  	arch_ftrace_set_direct_caller(fregs, addr);
>  }
>  
> -struct ftrace_ops direct_ops = {
> +static struct ftrace_ops direct_ops = {
>  	.func		= call_direct_funcs,
>  	.flags		= FTRACE_OPS_FL_DIRECT | FTRACE_OPS_FL_SAVE_REGS
>  			  | FTRACE_OPS_FL_PERMANENT,
> -- 
> 2.27.0
> 


-- 
Masami Hiramatsu (Google) <mhiramat@...nel.org>