| #ifndef __BACKPORT_LINUX_ACPI_H |
| #define __BACKPORT_LINUX_ACPI_H |
| #include_next <linux/acpi.h> |
| #include <linux/version.h> |
| |
| #if LINUX_VERSION_CODE < KERNEL_VERSION(3,8,0) |
| /* |
| * Backports |
| * |
| * commit 95f8a082b9b1ead0c2859f2a7b1ac91ff63d8765 |
| * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
| * Date: Wed Nov 21 00:21:50 2012 +0100 |
| * |
| * ACPI / driver core: Introduce struct acpi_dev_node and related macros |
| * |
| * To avoid adding an ACPI handle pointer to struct device on |
| * architectures that don't use ACPI, or generally when CONFIG_ACPI is |
| * not set, in which cases that pointer is useless, define struct |
| * acpi_dev_node that will contain the handle pointer if CONFIG_ACPI is |
| * set and will be empty otherwise and use it to represent the ACPI |
| * device node field in struct device. |
| * |
| * In addition to that define macros for reading and setting the ACPI |
| * handle of a device that don't generate code when CONFIG_ACPI is |
| * unset. Modify the ACPI subsystem to use those macros instead of |
| * referring to the given device's ACPI handle directly. |
| * |
| * Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
| * Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> |
| * Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| */ |
| #ifdef CONFIG_ACPI |
| #define ACPI_HANDLE(dev) DEVICE_ACPI_HANDLE(dev) |
| #else |
| #define ACPI_HANDLE(dev) (NULL) |
| #endif /* CONFIG_ACPI */ |
| #endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,8,0) */ |
| |
| #endif /* __BACKPORT_LINUX_ACPI_H */ |
