linux-kernel - Re: [PATCH] Avoid overflows in kernel/time.c

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Message-ID: <20071129194027.10046988@laptopd505.fenrus.org>
Date:	Thu, 29 Nov 2007 19:40:27 -0800
From:	Arjan van de Ven <arjan@...radead.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Chris Snook <csnook@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Avoid overflows in kernel/time.c

On Thu, 29 Nov 2007 19:04:36 -0800
"H. Peter Anvin" <hpa@...or.com> wrote:

> Chris Snook wrote:
> > H. Peter Anvin wrote:
> >> NOTE: This patch uses a bc(1) script to compute the appropriate
> >> constants.
> > 
> > Perhaps dc would be more appropriate?  That's included in busybox.
> > 
> 
> Perhaps it would, but I think there is more variability between dc 
> implementations -- consider if the busybox version is broken, for
> eample.
> 
> Either way, how many people compile their kernels in a busybox
> environment?
> 
> Anyway, I don't think compiling bc is hard on anything which has a C 
> compiler.

alternative is to just also ship the precomputed values ;-)

> 
> 	-hpa
> -
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