ACPI: use macro to replace hard number

Impact: cleanup

Use MACRO for rev 3 fadt id instead of 3 directly.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/tables/tbfadt.c b/drivers/acpi/tables/tbfadt.c
index 2c7885e7ffba6c06508e261f5ef547819661db51..2817158fb6a1b7cd8f2b2ad01f522e19af67b9f1 100644 (file)
--- a/drivers/acpi/tables/tbfadt.c
+++ b/drivers/acpi/tables/tbfadt.c
@@ -304,7 +304,7 @@ static void acpi_tb_convert_fadt(void)
         * The ACPI 1.0 reserved fields that will be zeroed are the bytes located at
         * offset 45, 55, 95, and the word located at offset 109, 110.
         */
-       if (acpi_gbl_FADT.header.revision < 3) {
+       if (acpi_gbl_FADT.header.revision < FADT2_REVISION_ID) {
                acpi_gbl_FADT.preferred_profile = 0;
                acpi_gbl_FADT.pstate_control = 0;
                acpi_gbl_FADT.cst_control = 0;