From: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
To: Jeff Garzik <jgarzik@pobox.com>
Subject: Re: [patch][0/6] ide: sanitize PIO code, take 2
Date: Mon, 13 Sep 2004 14:16:37 +0200
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       Russell King <rmk+lkml@arm.linux.org.uk>
References: <200409110026.20064.bzolnier@elka.pw.edu.pl> <4144EB28.6070401@pobox.com>
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On Monday 13 September 2004 02:34, Jeff Garzik wrote:
> Bartlomiej Zolnierkiewicz wrote:
> > - bugfix: use sg->length instead of sg_dma_len(sg)
> >   (found thanks to rmk's concerns)
> 
> Details?

Unlike libata we don't use DMA API for PIO.

> IIRC this breaks ia64 and/or other platforms?

No pci_[un]map_sg() so sg->length won't be ever changed.

Bartlomiej
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