linux-kernel - Re: [RFC 1/2] ACPI: activate&export acpi_os_get_physical

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Message-ID: <4189370.scsJsnLdx0@vostro.rjw.lan>
Date:	Fri, 01 May 2015 03:32:29 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Darren Hart <dvhart@...radead.org>
Cc:	Kast Bernd <kastbernd@....de>, corentin.chary@...il.com,
	lenb@...nel.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org, acpi4asus-user@...ts.sourceforge.net,
	platform-driver-x86@...r.kernel.org
Subject: Re: [RFC 1/2] ACPI: activate&export acpi_os_get_physical_address

On Thursday, April 30, 2015 11:10:25 AM Darren Hart wrote:
> On Wed, Apr 22, 2015 at 04:12:24PM +0200, Kast Bernd wrote:
> > acpi_os_get_physical_address will be needed by an acpi driver (asus-wmi.c).
> > Additionally it could  be used by dell-laptop.c instead of directly calling virt_to_phys.
> > 
> > acpi_os_get_physical_address gets exported and ACPI_FUTURE_USAGE is removed
> > 
> 
> Hrm, well... this doesn't get rid of virt_to_phys, it just wraps it really. I'm
> not sure that makes this any more acceptable than the original from Felipe - but
> that's not my call.

Use virt_to_phys() if you need to.

This one is in case ACPICA needs to get the virtual-to-physical mapping (hence
ACPI_FUTURE_USAGE).

Rafael

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