Merge branch 'acpi-bus'

Merge ACPI core fix to avoid calling dmi_check_system() on non-x86.

* acpi-bus:
  ACPI / bus: Only call dmi_check_system() on X86

1 files changed, 7 insertions, 6 deletions

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 292088fcc624..d2e29a19890d 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -35,11 +35,11 @@
 #include <linux/delay.h>
 #ifdef CONFIG_X86
 #include <asm/mpspec.h>
+#include <linux/dmi.h>
 #endif
 #include <linux/acpi_iort.h>
 #include <linux/pci.h>
 #include <acpi/apei.h>
-#include <linux/dmi.h>
 #include <linux/suspend.h>
 
 #include "internal.h"
@@ -82,10 +82,6 @@ static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
         },
         {}
 };
-#else
-static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
-        {}
-};
 #endif
 
 /* --------------------------------------------------------------------------
@@ -1033,11 +1029,16 @@ void __init acpi_early_init(void)
 
         acpi_permanent_mmap = true;
 
+#ifdef CONFIG_X86
         /*
          * If the machine falls into the DMI check table,
-         * DSDT will be copied to memory
+         * DSDT will be copied to memory.
+         * Note that calling dmi_check_system() here on other architectures
+         * would not be OK because only x86 initializes dmi early enough.
+         * Thankfully only x86 systems need such quirks for now.
          */
         dmi_check_system(dsdt_dmi_table);
+#endif
 
         status = acpi_reallocate_root_table();
         if (ACPI_FAILURE(status)) {