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-rw-r--r--arch/x86/Kconfig1
-rw-r--r--drivers/acpi/Kconfig3
-rw-r--r--drivers/acpi/osl.c4
3 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d24887b645dc..5617750262db 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -132,6 +132,7 @@ config X86
select GENERIC_CPU_AUTOPROBE
select HAVE_ARCH_AUDITSYSCALL
select ARCH_SUPPORTS_ATOMIC_RMW
+ select ACPI_LEGACY_TABLES_LOOKUP if ACPI
config INSTRUCTION_DECODER
def_bool y
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index a34a22841002..970524c54bfa 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -42,6 +42,9 @@ menuconfig ACPI
if ACPI
+config ACPI_LEGACY_TABLES_LOOKUP
+ bool
+
config ACPI_SLEEP
bool
depends on SUSPEND || HIBERNATION
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index bad25b070fe0..3abe9b223ba7 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -259,12 +259,14 @@ acpi_physical_address __init acpi_os_get_root_pointer(void)
"System description tables not found\n");
return 0;
}
- } else {
+ } else if (IS_ENABLED(CONFIG_ACPI_LEGACY_TABLES_LOOKUP)) {
acpi_physical_address pa = 0;
acpi_find_root_pointer(&pa);
return pa;
}
+
+ return 0;
}
/* Must be called with 'acpi_ioremap_lock' or RCU read lock held. */