linux-kernel - Re: Userspace visible of 3 include/asm/ headers

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Date:	Fri, 4 Aug 2006 00:14:02 +0400
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	Dave Jones <davej@...hat.com>, Adrian Bunk <bunk@...sta.de>,
	linux-kernel@...r.kernel.org,
	David Woodhouse <dwmw2@...radead.org>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: Userspace visible of 3 include/asm/ headers

On Thu, Aug 03, 2006 at 03:44:10PM -0400, Dave Jones wrote:
> On Thu, Aug 03, 2006 at 09:39:52PM +0200, Adrian Bunk wrote:
>  > Could anyone help me regarding the desired userspace visibility of the
>  > following three headers under include/asm/?
>  >
>  > Header        : cpufeature.h
>  > Architectures : i386, x86_64
>  > Is there any reason why this header is exported to userspace?
>
> Probably not. The only apps I've seen that care about feature bits
> define them theirselves rather than use these.

Feature bits are only (indirectly) visible via /proc/cpuinfo.
struct cpuinfo_x86, AFAICS, is never copied to userspace. So, it's safe
to remove this header.

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