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From: Ralf Baechle <ralf@linux-mips.org>
To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: linux-mips@linux-mips.org
Subject: Re: 2.4 pci_dma_sync_sg fix
Date: Thu, 1 Jul 2004 15:59:19 +0200	[thread overview]
Message-ID: <20040701135919.GA6906@linux-mips.org> (raw)
In-Reply-To: <20040701.224535.71082878.anemo@mba.ocn.ne.jp>

On Thu, Jul 01, 2004 at 10:45:35PM +0900, Atsushi Nemoto wrote:

> >>>>> On Thu, 1 Jul 2004 15:22:40 +0200, Ralf Baechle <ralf@linux-mips.org> said:
> 
> ralf> Leave the #ifdef stuff there - or otherwise gcc might optimize
> ralf> this into empty loops ...
> 
> The loop contains paranoid out_of_line_bug, so it never be optimized
> to empty.

Indeed and I think that's a bit of overkill.  I've never seen these
assertions catch any bugs - and 2.4 isn't exactly new anymore.  Anyway,
even if the loop was empty gcc would not eleminate it.

  Ralf

  reply	other threads:[~2004-07-01 16:03 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-07-01 13:21 2.4 pci_dma_sync_sg fix Atsushi Nemoto
2004-07-01 13:22 ` Ralf Baechle
2004-07-01 13:45   ` Atsushi Nemoto
2004-07-01 13:59     ` Ralf Baechle [this message]
2004-07-03 12:44       ` Atsushi Nemoto

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