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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Roland Dreier <roland@topspin.com>
Cc: Brenden Matthews <brenden@rty.ca>,
	Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: Si3112 S-ATA bug preventing use of udma5.
Date: Sat, 24 Apr 2004 14:31:08 +1000	[thread overview]
Message-ID: <1082781068.10628.51.camel@gaston> (raw)
In-Reply-To: <52ad12qf8u.fsf@topspin.com>

On Sat, 2004-04-24 at 12:30, Roland Dreier wrote:

> Finally, siimage.c does
> 
>                 hwif->OUTW(speedt, addr);
> 
> and speedt is a u32 -- however, as you say, the compiler should just
> cast speedt down to a u16.  What am I missing?

This is just a normal function call, there should be nothing special,
so either you are missing something else or you are suffering from
incorrectly compiled code... I'm no x86 expert so I can't help
analyzing the codegen here though.

Ben.



  reply	other threads:[~2004-04-24  4:33 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-23 22:02 Si3112 S-ATA bug preventing use of udma5 Brenden Matthews
2004-04-24  1:44 ` Benjamin Herrenschmidt
2004-04-24  2:30   ` Roland Dreier
2004-04-24  4:31     ` Benjamin Herrenschmidt [this message]
2004-04-24 19:35       ` Denis Vlasenko

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