From: Mika Westerberg mika.westerberg@linux.intel.com
commit 1dade3a7048ccfc675650cd2cf13d578b095e5fb upstream.
Sometimes it is useful to find the access_width field value in bytes and not in bits so add a helper that can be used for this purpose.
Suggested-by: Jean Delvare jdelvare@suse.de Signed-off-by: Mika Westerberg mika.westerberg@linux.intel.com Reviewed-by: Jean Delvare jdelvare@suse.de Cc: 4.16+ stable@vger.kernel.org # 4.16+ Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- include/acpi/actypes.h | 2 ++ 1 file changed, 2 insertions(+)
--- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -551,6 +551,8 @@ typedef u64 acpi_integer; #define ACPI_VALIDATE_RSDP_SIG(a) (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_SIG_RSDP, 8)) #define ACPI_MAKE_RSDP_SIG(dest) (memcpy (ACPI_CAST_PTR (char, (dest)), ACPI_SIG_RSDP, 8))
+#define ACPI_ACCESS_BYTE_WIDTH(size) (1 << ((size) - 1)) + /******************************************************************************* * * Miscellaneous constants