linux-kernel - Re: [PATCH] sata_nv ADMA/NCQ support for nForce4

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Date:	Tue, 17 Oct 2006 16:54:56 -0400
From:	Mark Lord <liml@....ca>
To:	Roland Dreier <rdreier@...co.com>
Cc:	Robert Hancock <hancockr@...w.ca>,
	Jens Axboe <jens.axboe@...cle.com>,
	Allen Martin <AMartin@...dia.com>,
	Jeff Garzik <jeff@...zik.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-ide@...r.kernel.org, prakash@...noor.de
Subject: Re: [PATCH] sata_nv ADMA/NCQ support for nForce4

Roland Dreier wrote:
>     Mark> I was thinking more about the non wordsized fields, such as
>     Mark> the various u8 bytes that gcc will lay out differently
>     Mark> depending upon endianess.
> 
> I don't know of any gcc version that changes the order of struct
> fields.  You might be thinking of bitfields, which are laid out in an
> endian-dependent way.

Ack.  And also thinking about other compilers I work with,
which apparently are not so friendly.

You are correct -- I just verified it (again) for myself on x86 & PPC,
and the layout of u8 doesn't change.

Cheers!
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