linux-kernel - Re: [PATCHv6 2/7] printk: rename nmi.c and exported api

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Date:   Wed, 21 Dec 2016 11:45:05 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Petr Mladek <pmladek@...e.com>, Jan Kara <jack@...e.cz>,
        Tejun Heo <tj@...nel.org>, Calvin Owens <calvinowens@...com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Hurley <peter@...leysoftware.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Subject: Re: [PATCHv6 2/7] printk: rename nmi.c and exported api

On Wed, Dec 21, 2016 at 6:36 AM, Sergey Senozhatsky
<sergey.senozhatsky@...il.com> wrote:
> A preparation patch for printk_safe work. No functional change.
> - rename nmi.c to print_safe.c
> - rename exported functions to have a `printk_safe' prefix.

I dislike this patch.

It's _mostly_ ok, but the nmi naming is nasty.

Either "printk_nmi()" or "printk_safe" is fine, but doing *both* is
stupid and wrong. And you do both in a couple of places.

So please keep the printk_nmi_enter/exit() naming. Because
"printk_safe_nmi_enter/exit()" is just stupid.  It's about nmi entry.
The "safe" part is simply an implementation detail.

                Linus