linux-kernel - Re: [PATCH] Remove v850 from linux/elf-em.h

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Date:	Fri, 18 Mar 2016 10:46:54 -0700
From:	David Daney <ddaney.cavm@...il.com>
To:	Rob Landley <rob@...dley.net>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Greg Ungerer <gerg@...pgear.com>
Subject: Re: [PATCH] Remove v850 from linux/elf-em.h

On 03/17/2016 07:32 PM, Rob Landley wrote:
[...]
>
> As I explained last email, userspace uses the libc header, not the linux
> header,

The fallacy in this argument is the assertion that we know what 
userspace does.

Userspace could easily do:

#include <linux/elf-em.h>
.
.
.
    case SYMBOL_YOU_WANT_TO_REMOVE:

  ¡BOOM!  it is broken.