linux-kernel - Re: [PATCH] libata: don't initialize sg in ata_exec_internal() if DMA

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Date:	Mon, 11 Dec 2006 23:23:35 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Arnd Bergmann <arnd.bergmann@...ibm.com>
CC:	jgarzik@...ox.com, linux-ide@...r.kernel.org,
	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] libata: don't initialize sg in ata_exec_internal() if
 DMA_NONE

Tejun Heo wrote:
> I'll follow up with conversion to ata_do_simple_cmd().

The current situation is...

ata_exec_internal_sg()	: no user except for ata_exec_internal() yet
ata_exec_internal()	: one data transferring user. other are non-data
ata_do_simple_cmd()	: three users

So, adding another exec_internal variant doesn't look so hot.  It seems
we already have enough variants considering the small number of users.
I think it's best to leave it alone for now.

Thanks.

-- 
tejun
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