Function prototype or declaration at include/linux/acpi.h, line 334 References: arch/arm/xen/enlighten.c, line 299 arch/x86/kernel/acpi/boot.c, line 618 arch/x86/kernel/acpi/boot.c, line 705 arch/x86/kernel/acpi/boot.c, line 709 drivers/acpi/arm64/iort.c, line 1109 drivers/acpi/irq.c, line 51 drivers/acpi/irq.c, line 68 drivers/acpi/resource.c, line 417 drivers/char/hpet.c, line 238 drivers/char/hpet.c, line 1004 drivers/clocksource/hyperv_timer.c, line 203 drivers/irqchip/irq-gic-v3.c, line 2247 drivers/irqchip/irq-gic.c, line 1660 drivers/mailbox/pcc.c, line 172 drivers/perf/arm_pmu_acpi.c, line 56 drivers/perf/arm_pmu_acpi.c, line 121 include/linux/acpi.h, line 334