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

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Message-ID: <20100602061815.GH3564@kernel.dk>
Date:	Wed, 2 Jun 2010 08:18:15 +0200
From:	Jens Axboe <jaxboe@...ionio.com>
To:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Cc:	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"James.Bottomley@...e.de" <James.Bottomley@...e.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>
Subject: Re: [PATCH -mm 0/3] remove useless ISA_DMA_THRESHOLD

On Tue, Jun 01 2010, FUJITA Tomonori wrote:
> On Tue, 1 Jun 2010 20:24:52 +0200
> Jens Axboe <jaxboe@...ionio.com> 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.
> 
> Thanks,
> 
> Any tree works for me, I thought about -mm though.
> 
> Can you replace [1/3] with the following?
> 
> I fixed the subject and the body, s/aha1532/aha1542/;
> 
> Somehow I forgot to remove unused BAD_SG_DMA().

I'll collect the acks and include this update.

-- 
Jens Axboe

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