ACPI / tables: introduce ARCH_HAS_ACPI_TABLE_UPGRADE

We want to use the table upgrade feature in ARM64.
Introduce a new configuration option that allows that.

Signed-off-by: Aleksey Makarov <aleksey.makarov@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d9a94da0c29fd72b048080681ab1660928a7d3f0..f1a62447928c5613cb9ef6cf043d9c4c26cb4ac7 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -22,6 +22,7 @@ config X86
        select ANON_INODES
        select ARCH_CLOCKSOURCE_DATA
        select ARCH_DISCARD_MEMBLOCK
+       select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
        select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
        select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
        select ARCH_HAS_DEVMEM_IS_ALLOWED

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index b7e2e776397d8384dd6459c0a9e9f94b097c113f..0a8e41a52d09bf0b8c6755e5763c77336a903a93 100644 (file)
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -311,9 +311,12 @@ config ACPI_CUSTOM_DSDT
        bool
        default ACPI_CUSTOM_DSDT_FILE != ""
 
+config ARCH_HAS_ACPI_TABLE_UPGRADE
+       def_bool n
+
 config ACPI_TABLE_UPGRADE
        bool "Allow upgrading ACPI tables via initrd"
-       depends on BLK_DEV_INITRD && X86
+       depends on BLK_DEV_INITRD && ARCH_HAS_ACPI_TABLE_UPGRADE
        default y
        help
          This option provides functionality to upgrade arbitrary ACPI tables