linux-kernel - Re: [PATCH 4/6] Implement a general log2 facility in the kernel

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Message-ID: <4143.1158166615@warthog.cambridge.redhat.com>
Date:	Wed, 13 Sep 2006 17:56:55 +0100
From:	David Howells <dhowells@...hat.com>
To:	Russell King <rmk+lkml@....linux.org.uk>
Cc:	Matthew Wilcox <matthew@....cx>, Adrian Bunk <bunk@...sta.de>,
	David Howells <dhowells@...hat.com>, torvalds@...l.org,
	akpm@...l.org, linux-kernel@...r.kernel.org,
	linux-arch@...r.kernel.org
Subject: Re: [PATCH 4/6] Implement a general log2 facility in the kernel 

Russell King <rmk+lkml@....linux.org.uk> wrote:

> Therefore, re-using "log2()" is about as bad as re-using the "strcmp()"
> name to implement a function which copies strings.

I should probably use ilog2() then which would at least be consistent with the
powerpc arch.

> t.c:2: warning: conflicting types for built-in function 'log2'

Which, of course, I didn't see because I didn't define it as a function,
merely as a macro.

David
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