linux-kernel - Re: queued patches for SCSI for 2.6.24

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Message-Id: <20070926115207B.fujita.tomonori@lab.ntt.co.jp>
Date:	Wed, 26 Sep 2007 11:52:07 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	jeff@...zik.org
Cc:	tomof@....org, James.Bottomley@...elEye.com,
	akpm@...ux-foundation.org, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org, fujita.tomonori@....ntt.co.jp
Subject: Re: queued patches for SCSI for 2.6.24

On Tue, 25 Sep 2007 22:37:33 -0400
Jeff Garzik <jeff@...zik.org> wrote:

> FUJITA Tomonori wrote:
> > diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
> > index adc9559..694015d 100644
> > --- a/drivers/scsi/hosts.c
> > +++ b/drivers/scsi/hosts.c
> > @@ -342,6 +342,10 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
> >  	shost->unchecked_isa_dma = sht->unchecked_isa_dma;
> >  	shost->use_clustering = sht->use_clustering;
> >  	shost->ordered_tag = sht->ordered_tag;
> > +
> > +	if (!sht->supported_mode)
> > +		sht->supported_mode = MODE_INITIATOR;
> > +
> >  	shost->active_mode = sht->supported_mode;
> 
> 
> I almost hesitate to speak up, after making the original suggestion, but:
> 
> Are there any const-ness worries for scsi_host_template, or plans for 
> the future?  I do not see any other examples of the host template 
> members getting modified.

Yeah, that's why I said it's hacky in the previous
discussion. Changing scsi_host_template behind llds is not nice, I
think.


> Perhaps this value should instead be mirrored in scsi_host, like
> many others?

supported_mode should be static like 'name'. I'm not sure about having
supported_mode in scsi_host. All the scsi_hosts of one driver always
use the same supported_mode value unlike active_mode.
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