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

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Message-ID: <4C1A1C1F.5030302@fusionio.com>
Date:	Thu, 17 Jun 2010 14:59:11 +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 2010-06-17 14:48, FUJITA Tomonori wrote:
> On Wed, 2 Jun 2010 08:18:15 +0200
> Jens Axboe <jaxboe@...ionio.com> wrote:
> 
>> 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.
> 
> Can you send this to -next via your tree? I want this to be
> compile-tested on -next on various architectures.

Yep, going out now.


-- 
Jens Axboe

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