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| author | Ashwin Chaugule <ashwin.chaugule@linaro.org> | 2015-09-09 23:27:06 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-10-13 00:08:03 +0300 |
| commit | 56cdc2a05c248c9dfe2480813fc34a4e6d7a77db (patch) | |
| tree | 1733c432ba51f67f18e7b6de0a0c39c6ccdc214d /drivers/acpi/acpi_processor.c | |
| parent | 5477fb3bd1e8e43299761850318fe0057172a24a (diff) | |
| download | linux-56cdc2a05c248c9dfe2480813fc34a4e6d7a77db.tar.xz | |
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 <ashwin.chaugule@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpi_processor.c')
| -rw-r--r-- | drivers/acpi/acpi_processor.c | 18 |
1 files changed, 18 insertions, 0 deletions
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; |