linux-kernel - Re: [PATCH] xen: relax signature check

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Message-Id: <E1J27Or-00012X-DF@be1.7eggert.dyndns.org>
Date:	Tue, 11 Dec 2007 16:52:01 +0100
From:	Bodo Eggert <7eggert@....de>
To:	Jeremy Fitzhardinge <jeremy@...p.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Xen-devel <xen-devel@...ts.xensource.com>
Subject: Re: [PATCH] xen: relax signature check

Jeremy Fitzhardinge <jeremy@...p.org> wrote:

> Some versions of Xen 3.x set their magic number to "xen-3.[12]", so
> relax the test to match them.


> -     BUG_ON(memcmp(xen_start_info->magic, "xen-3.0", 7) != 0);
> +     BUG_ON(memcmp(xen_start_info->magic, "xen-3", 5) != 0);

Not BUG_ON(memcmp(xen_start_info->magic, "xen-3.", 6) != 0); ?
I don't thin Xen version 32 will be compatible ...

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