linux-kernel - Re: [PATCH 02/10] UAPI: Make uapi/linux/irqnr.h non-empty

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Date:	Wed, 17 Oct 2012 16:47:58 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	David Howells <dhowells@...hat.com>
Cc:	torvalds@...l.org, linux-kernel@...r.kernel.org,
	Randy Dunlap <rdunlap@...otime.net>,
	Alessandro Suardi <alessandro.suardi@...il.com>
Subject: Re: [PATCH 02/10] UAPI: Make uapi/linux/irqnr.h non-empty

On Wed, Oct 17, 2012 at 4:15 PM, David Howells <dhowells@...hat.com> wrote:
> uapi/linux/irqnr.h was emitted by the UAPI disintegration script as an empty
> file because the parent linux/irqnr.h had no UAPI stuff in it, despite being
> marked with "header-y".

> --- a/include/uapi/linux/irqnr.h
> +++ b/include/uapi/linux/irqnr.h
> @@ -0,0 +1,4 @@
> +/*
> + * There isn't anything here anymore, but the file must not be empty or patch
> + * will delete it.
> + */

Wouldn't it be better to just have include guards in those otherwise
empty files?

If someone needs to add something to such a file, the include guards are needed
anyway (but may be forgotten), and the comment should be deleted as well
(which may also be forgotten).

BTW, is "#pragma once" allowed these days? It seems we already have one
user in drivers/staging/bcm/CmHost.h.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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