From: Denis Vlasenko <vda@ilport.com.ua>
To: Rolf Eike Beer <eike-kernel@sf-tec.de>
Cc: SCSI List <linux-scsi@vger.kernel.org>,
linux-kernel@vger.kernel.org, gibbs@scsiguy.com
Subject: Re: [PATCH] deinline some functions in aic7xxx drivers, save 80k of text
Date: Mon, 10 Apr 2006 10:54:39 +0300 [thread overview]
Message-ID: <200604101054.39154.vda@ilport.com.ua> (raw)
In-Reply-To: <200604100919.23244.eike-kernel@sf-tec.de>
On Monday 10 April 2006 10:19, Rolf Eike Beer wrote:
> [Full quote and readded CC adresses. My fault, pressed wrong button]
>
> Denis Vlasenko wrote:
> > On Monday 10 April 2006 10:03, Rolf Eike Beer wrote:
> > > Am Montag, 10. April 2006 07:49 schrieben Sie:
> > > > On Monday 10 April 2006 08:44, Denis Vlasenko wrote:
> > > > > I also spotted two bugs in the process, patches
> > > > > for those will follow.
> > > >
> > > > ahd_delay(usec) is buggy. Just think how would it work
> > > > with usec == 1024*100 + 1...
> > >
> > > This is unneeded. The biggest argument this function is ever called with
> > > is 1000.
> >
> > I know.
> >
> > > I would suggest to delete this function completely. If one ever has to
> > > wait for a longer period mdelay() is the right function to call.
> >
> > I am leaving it up to maintainer to decide. After all, the driver
> > is for multiple OSes, other OS may lack mdelay().
>
> The comment says about multiple milliseconds sleeps which just don't happen.
# grep -r ah._delay.[A-Z] .
./aic7xxx_core.c: ahc_delay(AHC_BUSRESET_DELAY);
./aic79xx_core.c: ahd_delay(AHD_BUSRESET_DELAY);
./aic79xx_core.c: ahd_delay(AHD_BUSRESET_DELAY);
I am not sure that this constant won't be redefined to something large.
If maintainer knows better, he can take care of it.
I just fixed an obvious latent bug.
--
vda
next prev parent reply other threads:[~2006-04-10 7:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-10 5:44 [PATCH] deinline some functions in aic7xxx drivers, save 80k of text Denis Vlasenko
2006-04-10 5:46 ` Denis Vlasenko
2006-04-10 5:49 ` Denis Vlasenko
[not found] ` <200604100903.35431.eike-kernel@sf-tec.de>
[not found] ` <200604101015.36869.vda@ilport.com.ua>
2006-04-10 7:19 ` Rolf Eike Beer
2006-04-10 7:54 ` Denis Vlasenko [this message]
2006-04-10 9:40 ` Stefan Richter
2006-04-10 10:00 ` Hannes Reinecke
2006-04-10 10:16 ` Stefan Richter
2006-04-10 16:20 ` Arjan van de Ven
2006-04-10 8:43 ` Stefan Richter
2006-04-10 8:56 ` Denis Vlasenko
2006-04-10 10:19 ` Stefan Richter
2006-04-10 14:22 ` Justin T. Gibbs
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