linux-kernel - Re: [PATCH -mm 0/3] remove useless ISA_DMA

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Date:	Tue, 01 Jun 2010 13:34:43 -0500
From:	James Bottomley <James.Bottomley@...e.de>
To:	Jens Axboe <jaxboe@...ionio.com>
Cc:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-arch@...r.kernel.org
Subject: Re: [PATCH -mm 0/3] remove useless ISA_DMA_THRESHOLD

On Tue, 2010-06-01 at 20:24 +0200, Jens Axboe wrote:
> On Mon, May 31 2010, FUJITA Tomonori wrote:
> > This patchset removes useless ISA_DMA_THRESHOLD:
> > 
> > - ISA_DMA_THRESHOLD is irrelevant to the majority of architectures but
> >   they have to define it.
> > 
> > - ISA_DMA_THRESHOLD definition is inconsistent on architectures; ISA
> >   DMA addressing restriction, DMA addressing restriction or something
> >   else.
> > 
> > - Everyone (except for SCSI) uses dma_mask instead of ancient
> >   ISA_DMA_THRESHOLD.
> > 
> > Only SCSI uses ISA_DMA_THRESHOLD for ancient drivers with non-zero
> > unchecked_isa_dma. We can safely remove ISA_DMA_THRESHOLD usage in
> > SCSI. So we can clean up ISA_DMA_THRESHOLD on the whole tree.
> 
> Looks good. James, it's probably easier if I just carry this patch set.

Sure, acked by me.

James



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