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To: Rusty Russell <rusty@rustcorp.com.au>
Cc: lkml - Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] Use more gcc extensions in the Linux headers
References: <1173419792.32234.131.camel@localhost.localdomain>
From: Andi Kleen <andi@firstfloor.org>
Date: 09 Mar 2007 17:52:00 +0100
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Rusty Russell <rusty@rustcorp.com.au> writes:

> __builtin_types_compatible_p() has been around since gcc 2.95, and we
> don't use it anywhere.  This patch quietly fixes that.

Using BUILD_BUG_ON_ZERO() would have been somewhat cleaner.

-Andi