As Ard suggested, CONFIG_ACPI && !CONFIG_EFI doesn't make sense on arm64, while CONFIG_ACPI and CONFIG_CPU_BIG_ENDIAN doesn't make sense either. As CONFIG_EFI already has a dependency of !CONFIG_CPU_BIG_ENDIAN, it is good enough to add a dependency of CONFIG_EFI to avoid any useless combination of configuration. This bug, reported by Will, will be revealed when my patch series, "arm64: kexec,kdump: fix boot failures on acpi-only system," is applied and the kernel is built under allmodconfig. Signed-off-by: AKASHI Takahiro <takahiro.akashi@xxxxxxxxxx> Suggested-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> --- drivers/acpi/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index b533eeb6139d..15ab1daaa808 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -6,7 +6,7 @@ menuconfig ACPI bool "ACPI (Advanced Configuration and Power Interface) Support" depends on !IA64_HP_SIM - depends on IA64 || X86 || ARM64 + depends on IA64 || X86 || (ARM64 && EFI) depends on PCI select PNP default y if (IA64 || X86) -- 2.18.0 _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec