linux-kernel - Re: [2.6.25 patch] drivers/crypto/hifn

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20080227062207.GB10603@cs181133002.pp.htv.fi>
Date:	Wed, 27 Feb 2008 08:22:07 +0200
From:	Adrian Bunk <bunk@...nel.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Evgeniy Polyakov <johnpol@....mipt.ru>,
	Martin Michlmayr <tbm@...ius.com>,
	linux-kernel@...r.kernel.org,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Ralf Baechle <ralf@...ux-mips.org>,
	linux-crypto@...r.kernel.org
Subject: Re: [2.6.25 patch] drivers/crypto/hifn_795x.c: fix 64bit division

On Tue, Feb 26, 2008 at 04:04:39PM -0800, Andrew Morton wrote:
> On Tue, 26 Feb 2008 21:52:40 +0300 Evgeniy Polyakov <johnpol@....mipt.ru> wrote:
> 
> > Hi Adrian.
> > 
> > On Tue, Feb 26, 2008 at 05:34:21PM +0200, Adrian Bunk (bunk@...nel.org) wrote:
> > > Using ndelay() with a 64bit variable as parameter can result in build 
> > > errors like the following on some 32bit systems when it results in a 
> > > 64bit division:
> > > 
> > > <--  snip  -->
> > > 
> > >  ...
> > >   MODPOST 759 modules
> > > ERROR: "__divdi3" [drivers/crypto/hifn_795x.ko] undefined!
> > > 
> > > <--  snip  -->
> > > 
> > > Reported by Martin Michlmayr.
> > > 
> > > Signed-off-by: Adrian Bunk <bunk@...nel.org>
> > 
> > Yep, ndelay() uses division, thanks a lot Adrian for spotting this.
> 
> hm.  Where?
>...

include/linux/delay.h:35

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/