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From: Andi Kleen (ak_at_suse.de)
Date: 11/18/05

  • Next message: Gene Heskett: "Re: Linux 2.6.15-rc2" 
    Date:	Fri, 18 Nov 2005 17:05:07 +0100
To: virtualization@lists.osdl.org, linux-kernel@vger.kernel.org, bunk@stusta.de

    Sender: ak@brahms.suse.de
    To: Adrian Bunk <bunk@stusta.de>
    Cc: linux-kernel@vger.kernel.org, virtualization@lists.osdl.org
    Subject: Re: [2.6 patch] mark virt_to_bus/bus_to_virt as __deprecated on i386
    References: <20051118014055.GK11494@stusta.de>
    From: Andi Kleen <ak@suse.de>
    Date: 18 Nov 2005 17:05:07 +0100
    In-Reply-To: <20051118014055.GK11494@stusta.de>
    Message-ID: <p73lkzmhrgs.fsf@brahms.suse.de>
    Lines: 17
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    Adrian Bunk <bunk@stusta.de> writes:

    > virt_to_bus/bus_to_virt are long deprecated, mark them as __deprecated
    > on i386.

    I don't think you can do that. We still need these functions in low
    level architecture code at least.

    Using __pa/__va doesn't cut it because it won't work on Xen guests
    which have different views on bus vs physical addresses. The Xen
    code is (hopefully) in the process of being merged, so intentionally
    breaking them isn't a good idea.

    So if anything there would need to be replacement functions for it
    first that do the same thing. But why not just keep the old ones?

    -Andi
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