linux-kernel - RE: [RFQ] New driver architecture questions

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Message-ID: <6C678488C5CEE74F813A4D1948FD2DC7A96C787D@cosmail02.lsi.com>
Date:	Fri, 15 May 2009 12:38:40 -0600
From:	"Mukker, Atul" <Atul.Mukker@....com>
To:	Matthew Wilcox <matthew@....cx>
CC:	Jeff Garzik <jeff@...zik.org>,
	Julian Calaby <julian.calaby@...il.com>,
	adam radford <aradford@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Austria, Winston" <Winston.Austria@....com>,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>
Subject: RE: [RFQ] New driver architecture questions

 
> > > Using one or the other internally is fine (we don't care what you do),
> > > but we want to see memcpy().  By the way, the documentation I found
> for
> > > ScsiPortMoveMemory() seems to indicate that it's memmove(), not
> memcpy().
> > > Mapping memcpy() to ScsiPortMoveMemory() is fine ... but you can't
> > > realiably go the other way.
> > [Atul] It's actually memcpy(),http://msdn.microsoft.com/en-
> us/library/ms805434.aspx
> 
> No, it's memmove().  "The (ReadBuffer + Length) can overlap the area
> pointed to by WriteBuffer."
[Atul] Look, you are already figuring out possible issues with the source code without it being out yet :-).

Thanks everyone for your inputs so far!

Atul
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