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Date:   Sun, 28 Oct 2018 19:20:25 -0700 (PDT)
From:   David Miller <>
Subject: Re: [PATCH] ptp: drop redundant kasprintf() to create worker name

From: Rasmus Villemoes <>
Date: Fri, 26 Oct 2018 23:22:59 +0200

> Building with -Wformat-nonliteral, gcc complains
> drivers/ptp/ptp_clock.c: In function ‘ptp_clock_register’:
> 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.
> Signed-off-by: Rasmus Villemoes <>


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