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From: David Howells <dhowells@redhat.com>
In-Reply-To: <45EDB568.1090008@zytor.com> 
References: <45EDB568.1090008@zytor.com>  <20070306183426.10768.51800.stgit@warthog.cambridge.redhat.com> 
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: torvalds@osdl.org, akpm@osdl.org, benh@kernel.crashing.org,
       linux-kernel@vger.kernel.org, johannes@sipsolutions.net
Subject: Re: [PATCH] Fix get_order() [try #2] 
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Date: Tue, 06 Mar 2007 18:47:46 +0000
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H. Peter Anvin <hpa@zytor.com> wrote:

> Why not just make it ((n) < 1 ? 0 : ...) and make it well-defined for
> n == 0?

Because log2(0) is -INF or mathematically undefined or something isn't it?

David