linux-kernel - Re: [PATCH 3/10] video: use safer test on the result of find_first_zero

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Message-ID: <alpine.DEB.2.10.1406231612030.3905@hadrien>
Date:	Mon, 23 Jun 2014 16:12:41 +0200 (CEST)
From:	Julia Lawall <julia.lawall@...6.fr>
To:	Tomi Valkeinen <tomi.valkeinen@...com>
cc:	Julia Lawall <Julia.Lawall@...6.fr>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	kernel-janitors@...r.kernel.org, linux-fbdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/10] video: use safer test on the result of
 find_first_zero_bit

On Mon, 23 Jun 2014, Tomi Valkeinen wrote:

> On 04/06/14 12:07, Julia Lawall wrote:
> > From: Julia Lawall <Julia.Lawall@...6.fr>
> >
> > Find_first_zero_bit considers BITS_PER_LONG bits at a time, and thus may
> > return a larger number than the maximum position argument if that position
> > is not a multiple of BITS_PER_LONG.
>
> Thanks, queued for 3.17.

No, sorry you can drop it.  It doesn't hurt anything, but it is not
necessary either.  Returning a larger number is actually not possible.

julia
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