linux-kernel - Re: [ 10/25] x86, espfix: Make it possible to disable 16-bit support

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Date:	Mon, 08 Dec 2014 02:58:54 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Willy Tarreau <w@....eu>
Cc:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	"H. Peter Anvin" <hpa@...or.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [ 10/25] x86, espfix: Make it possible to disable 16-bit support

On Sat, 2014-12-06 at 18:41 +0100, Willy Tarreau wrote:
> 2.6.32-longterm review patch.  If anyone has any objections, please let me know.
> 
> ------------------
> 
> From: "H. Peter Anvin" <hpa@...or.com>
> 
> commit 34273f41d57ee8d854dcd2a1d754cbb546cb548f upstream.
> 
> Embedded systems, which may be very memory-size-sensitive, are
> extremely unlikely to ever encounter any 16-bit software, so make it
> a CONFIG_EXPERT option to turn off support for any 16-bit software
> whatsoever.
> 
> Signed-off-by: H. Peter Anvin <hpa@...or.com>
> Link: http://lkml.kernel.org/r/1398816946-3351-1-git-send-email-hpa@linux.intel.com
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
> (cherry picked from 3.2 commit 70d87cbbd92a3611655b39003176ee1033796bf7)
> [wt: backport notes for 2.6.32 :
>   - Fixed arch/x86/kernel/ldt.c (no IS_ENABLED on 2.6.32).
>   - No CONFIG_EXPERT condition in 2.6.32.
> /wt]
[...]

It used to be called CONFIG_EMBEDDED, so you could s/EXPERT/EMBEDDED/,
but it doesn't matter much.

Ben.

-- 
Ben Hutchings
If you seem to know what you are doing, you'll be given more to do.

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