linux-kernel - Re: [PATCH] mmc: Add missing sg_init

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Message-ID: <20071127101125.49770e42@dhcp-255-175.norway.atmel.com>
Date:	Tue, 27 Nov 2007 10:11:25 +0100
From:	Haavard Skinnemoen <hskinnemoen@...el.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Pierre Ossman <drzeus-mmc@...eus.cx>,
	LKML <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: [PATCH] mmc: Add missing sg_init_table() call

On Mon, 26 Nov 2007 21:29:55 -0800
Andrew Morton <akpm@...ux-foundation.org> wrote:

> On Thu, 22 Nov 2007 20:32:51 +0100 Haavard Skinnemoen <hskinnemoen@...el.com> wrote:
> 
> > mmc_init_queue only initializes the scatterlists with sg_init_table()
> > when using a bounce buffer. This leads to a BUG() when CONFIG_DEBUG_SG
> > is set.
> >   
> 
> I assume that 2.6.23 is not afflicted in this way?

Yes, the sg_init_table() interface and CONFIG_DEBUG_SG were both added
after 2.6.23. Before that, there was no need to do anything special to
initialize a scatterlist array apart from zeroing it.

Haavard
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