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Date:	Wed, 7 Nov 2007 13:10:36 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Paul Mundt <lethal@...ux-sh.org>
Cc:	Jeff Garzik <jeff@...zik.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	linuxsh-dev@...ts.sourceforge.net
Subject: Re: [PATCH 2/2] libata: pata_platform: Support polling-mode
 configuration.

> +	 * Use polling mode if there's no IRQ
> +	 */
> +	if (irq < 0) {
> +		ap->flags |= ATA_FLAG_PIO_POLLING;
> +		ata_port_desc(ap, "no IRQ, using PIO polling");
> +	}
> +
> +	/*

Zero means no IRQ. Not < 0. We enforce that policy across the kernel and
Linus has been very clear about it.

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