Re: [PATCH] drivers/scsi/psi240i.c - io_request_lock fix

[Morten Helgesen]

On Wed, Jan 09, 2002 at 05:28:00AM -0800, Adam J. Richter wrote:
> >> = Morten Helgesen
> >  = Douglas Gilbert
> 
> >From the look of this line in the patch:
> >> +       struct Scsi_Host *host = PsiHost[irq - 10];
> >
> >It will work if the first controller is allocated irq 10,
> >the second one irq 11, etc.   Unlikely ...
> 
> 	No, I think Morten has the use of PsiHost right.  The
> entries in PsiHost are apparently stored by IRQ.  It is not generally
> the case that the first controller is at PsiHost[0], the second at
> PsiHost[1], etc.

Even though I am not _that_ familiar with the code in question, that is how I
understood it too.

> 
> 	I agree with Jens in that the practice is rather ugly, but that
> is the way the driver worked before io_request_lock disappeared and
> I think that improving that stylistic issue is not a prerequisite
> for conversion from io_request_lock to host->host_lock.

Ugly it is. It was not my intention to clean up the code, just make the smallest change
necessary to get it to work. The maintainer should probably do a closer examination.

> 
> 	If I were you, Morten, I would go ahead with your patch
> that makes the minimal changes and then, if you want, make stylistic
> improvements as one or more separate patches, which are something
> that you may want to talk over with the mainter of that driver, if
> there currently is one.

Sure - but who is the maintainer ? :)

> 
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-- 

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mvh
Morten Helgesen 
UNIX System Administrator & C Developer 
Nextframe AS
[e-mail] / 93445641
http://www.nextframe.net