Re: [PATCH 06/10] rt-utils: Simplify trace_file_exists()

[John Kacur <jkacur@redhat.com>]

On Wed, 3 Sep 2025, Sebastian Andrzej Siewior wrote:

> Pass the tracefs folder prefix directly to stat instead making a copy of
> it. stat() is defined as not altering the path argument.
> 
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> ---
>  src/lib/rt-utils.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/src/lib/rt-utils.c b/src/lib/rt-utils.c
> index 0e6e6056a4392..294fc9683a122 100644
> --- a/src/lib/rt-utils.c
> +++ b/src/lib/rt-utils.c
> @@ -408,10 +408,7 @@ static void close_tracemark_fd(void)
>  static int trace_file_exists(char *name)
>  {
>  	struct stat sbuf;
> -	char *tracing_prefix = get_tracefs_prefix();
> -	char path[MAX_PATH];
> -	strcat(strcpy(path, tracing_prefix), name);
> -	return stat(path, &sbuf) ? 0 : 1;
> +	return stat(tracefs_prefix, &sbuf) ? 0 : 1;
>  }
>  
>  static void tracefs_prepare(void)
> -- 
> 2.51.0
> 
> 
Signed-off-by: John Kacur <jkacur@redhat.com>