linux-kernel - Re: [PATCH] ACPI: Move acpi_bus_get

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Date:	Mon, 09 Sep 2013 23:52:44 -0400
From:	Jonathan Callen <jcallen@...too.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
CC:	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ACPI: Move acpi_bus_get_device() from bus.c to scan.c

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On 07/27/2013 09:24 AM, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com> Subject: ACPI: Move acpi_bus_get_device()
> from bus.c to scan.c
> 
> Move acpi_bus_get_device() from bus.c to scan.c which allows acpi_bus_data_handler() to become
> static and clean up the latter.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com> --- drivers/acpi/bus.c      |
> 21 --------------------- drivers/acpi/scan.c     |   30 ++++++++++++++++++++++-------- 
> include/acpi/acpi_bus.h |    1 - 3 files changed, 22 insertions(+), 30 deletions(-)
> 
> Index: linux-pm/drivers/acpi/bus.c 
> =================================================================== ---
> linux-pm.orig/drivers/acpi/bus.c +++ linux-pm/drivers/acpi/bus.c @@ -89,27 +89,6 @@ static
> struct dmi_system_id dsdt_dmi_tab Device Management
[cut]
> - -EXPORT_SYMBOL(acpi_bus_get_device); - acpi_status acpi_bus_get_status_handle(acpi_handle
> handle, unsigned long long *sta) { Index: linux-pm/drivers/acpi/scan.c 
> =================================================================== ---
> linux-pm.orig/drivers/acpi/scan.c +++ linux-pm/drivers/acpi/scan.c @@ -970,6 +970,28 @@ struct
> bus_type acpi_bus_type = { .uevent		= acpi_device_uevent, };
> 
[cut]
> +} +EXPORT_SYMBOL_GPL(acpi_bus_get_device); +

Was it intentional to change the EXPORT_SYMBOL to EXPORT_SYMBOL_GPL here?  While I understand that
it is completely unsupported anyway, this change does break at least the latest version of the
proprietary nvidia graphics driver.

- -- 
Jonathan Callen
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