From 56cdc2a05c248c9dfe2480813fc34a4e6d7a77db Mon Sep 17 00:00:00 2001 From: Ashwin Chaugule Date: Wed, 9 Sep 2015 16:27:06 -0400 Subject: [PATCH] ACPI: Add weak routines for ACPI CPU Hotplug Add weak functions for architectures which do not support hot-adding and removing CPUs which aren't detected at bootup. (e.g. via MADT). This helps preserve the Kconfig dependency from: commit cbfc1bae55bb ("[ACPI] ACPI_HOTPLUG_CPU Kconfig dependency update") prevent: HOTPLUG_CPU=y ACPI_PROCESSOR=y ACPI_HOTPLUG_CPU=n Signed-off-by: Ashwin Chaugule Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpi_processor.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 985b8a83184e..6979186dbd4b 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -164,6 +164,24 @@ static int acpi_processor_errata(void) -------------------------------------------------------------------------- */ #ifdef CONFIG_ACPI_HOTPLUG_CPU +int __weak acpi_map_cpu(acpi_handle handle, + phys_cpuid_t physid, int *pcpu) +{ + return -ENODEV; +} + +int __weak acpi_unmap_cpu(int cpu) +{ + return -ENODEV; +} + +int __weak arch_register_cpu(int cpu) +{ + return -ENODEV; +} + +void __weak arch_unregister_cpu(int cpu) {} + static int acpi_processor_hotadd_init(struct acpi_processor *pr) { unsigned long long sta; -- 2.20.1