From: Andi Kleen <andi@firstfloor.org>
To: Chuck Lever <chuck.lever@oracle.com>
Cc: andi@firstfloor.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Eliminate result signage problem in asm-x86_64/bitops.h
Date: Thu, 16 Aug 2007 00:23:55 +0200 [thread overview]
Message-ID: <20070815222355.GA5069@one.firstfloor.org> (raw)
In-Reply-To: <20070815210247.3518.89243.stgit@monet.1015granger.net>
On Wed, Aug 15, 2007 at 05:02:47PM -0400, Chuck Lever wrote:
> The return type of __scanbit() doesn't match the return type of
> find_{first,next}_bit(). Thus when you construct something like
> this:
>
> boolean ? __scanbit() : find_first_bit()
Why would you want to write this? What is boolean?
Do they have different arguments?
It's on my todo list for some time to special case
f_f_b() and friends for smaller arguments. Would
that eliminate this construct?
-Andi
next prev parent reply other threads:[~2007-08-15 22:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-15 21:02 [PATCH] Fix the sign of the result of a conditional expression Chuck Lever
2007-08-15 21:02 ` [PATCH] Eliminate result signage problem in asm-x86_64/bitops.h Chuck Lever
2007-08-15 22:23 ` Andi Kleen [this message]
2007-08-15 22:42 ` Chuck Lever
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