Re: [PATCH] ptp: drop redundant kasprintf() to create worker name

From: Richard Cochran
Date: Sat Oct 27 2018 - 09:04:51 EST


On Fri, Oct 26, 2018 at 11:22:59PM +0200, Rasmus Villemoes wrote:
> Building with -Wformat-nonliteral, gcc complains
>
> drivers/ptp/ptp_clock.c: In function âptp_clock_registerâ:
> drivers/ptp/ptp_clock.c:239:26: warning: format not a string literal and no format arguments [-Wformat-nonliteral]
> worker_name : info->name);
>
> kthread_create_worker takes fmt+varargs to set the name of the
> worker, and that happens with a vsnprintf() to a stack buffer (that is
> then copied into task_comm). So there's no reason not to just pass
> "ptp%d", ptp->index to kthread_create_worker() and avoid the
> intermediate worker_name variable.

Acked-by: Richard Cochran <richardcochran@xxxxxxxxx>