linux-kernel - Re: [patch/rfc 2.6.29 2/2] MTD: support driver model updates

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Date:	Wed, 01 Apr 2009 09:10:03 +0300
From:	Artem Bityutskiy <dedekind@...radead.org>
To:	David Brownell <david-b@...bell.net>
Cc:	Linux MTD <linux-mtd@...ts.infradead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Kay Sievers <kay.sievers@...y.org>
Subject: Re: [patch/rfc 2.6.29 2/2] MTD: support driver model updates

On Tue, 2009-03-31 at 22:57 -0700, David Brownell wrote:
> On Tuesday 31 March 2009, Artem Bityutskiy wrote:
> > > --- a/drivers/mtd/nand/mxc_nand.c
> > > +++ b/drivers/mtd/nand/mxc_nand.c
> > > @@ -866,6 +866,7 @@ static int __init mxcnd_probe(struct pla
> > >       mtd = &host->mtd;
> > >       mtd->priv = this;
> > >       mtd->owner = THIS_MODULE;
> > > +     mtd->dev.parent = &pdev->dev;
> > 
> > Could this be done for all NANDs in nand_base.c instead?
> 
> By adding the device as a parameter to nand_scan(),
> and presumably nand_scan_ident() ... which is a more
> invasive API change, and would require a "flag day"
> to convert all drivers.
> 
> My default assumption for API changes is to avoid
> flag days.  They can be done, yes, but I don't see
> a compelling reason to choose one here.

OK. MTD long needs sysfs, and I'm very happy with this
patches, even though they are not 100% complete. Good
start anyway.

Acked-by: Artem Bityutskiy <dedekind@...radead.org>

-- 
Best regards,
Artem Bityutskiy (Битюцкий Артём)

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