linux-kernel - Re: [PATCH] libata: add warning about possible HPA compatibility issue

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Message-ID: <20090525232014.7b6dd7bd@lxorguk.ukuu.org.uk>
Date:	Mon, 25 May 2009 23:20:14 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Cc:	Jeff Garzik <jgarzik@...ox.com>, Jacob <fun2program8@...oo.com>,
	Christopher Hogan <chris.c.hogan@...il.com>,
	Robert Hancock <hancockrwd@...il.com>,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] libata: add warning about possible HPA compatibility
 issue

> +static inline void ata_hpa_warn(unsigned long long first_sector,
> +				unsigned long long last_sector)
> +{
> +	printk(KERN_WARNING "*** possible compatibility issue:\n"
> +		"*** sectors %llu-%llu may be inaccessible\n"
> +		"*** if Host Protected Area is used for filesystem data\n"
> +		"*** (please refer to \"ignore_hpa\" module parameter)\n",
> +		first_sector, last_sector);
> +}

NAK - this is extremely misleading and will just randomly terrify users,
who may then set the paramater and corrupt things like BIOS save areas.
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