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    Subject[PATCH] acpi: fix acpi/video.h error and warning when PM is not enabled
    From: Randy Dunlap <randy.dunlap@oracle.com>

    When CONFIG_PM is not enabled, acpi/video.h causes a build error.
    Also fix a longstanding warning.

    include/acpi/video.h:22: warning: 'struct acpi_device' declared inside parameter list
    include/acpi/video.h:22: warning: its scope is only this definition or declaration, which is probably not what you want
    include/acpi/video.h: In function 'acpi_video_get_edid':
    include/acpi/video.h:24: error: 'ENODEV' undeclared (first use in this function)

    Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
    ---
    include/acpi/video.h | 4 ++++
    1 file changed, 4 insertions(+)

    --- lnx-2637-rc2.orig/include/acpi/video.h
    +++ lnx-2637-rc2/include/acpi/video.h
    @@ -1,6 +1,10 @@
    #ifndef __ACPI_VIDEO_H
    #define __ACPI_VIDEO_H

    +#include <linux/errno.h>
    +
    +struct acpi_device;
    +
    #define ACPI_VIDEO_DISPLAY_CRT 1
    #define ACPI_VIDEO_DISPLAY_TV 2
    #define ACPI_VIDEO_DISPLAY_DVI 3

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