v1->v2: Return specific error value instead of just return -1, and correct some grammar mistake in changelog.
For cpu hot add, evaluate _MAT or parse MADT will did twice to get APIC id: acpi_processor_add() acpi_processor_get_info() acpi_get_cpuid() will evaluate _MAT or parse MADT; acpi_processor_hotadd_init() acpi_map_lsapic() will evaluate _MAT again;
This patch set introduces apic_id in struct processor to save parsed APIC id, and use it to remove the duplicated _MAT evaluation.
Further more, the new logical cpu number will be generated in acpi_register_lapic(), this can be returned to remove the cpumask allocation and operation to simplify _acpi_map_lsapic().
There are also some cleanups for the ACPI processor dirver code.
Hanjun Guo (2): ACPI / processor: remove unnecessary if (!pr) check ACPI / processor: Remove outdated comments
Jiang Liu (4): ACPI / processor: Introduce apic_id in struct processor to save parsed APIC id ACPI / processor: use apic_id and remove duplicated _MAT evaluation x86 / ACPI: simplify _acpi_map_lsapic() ACPI / processor: remove some dead code in acpi_processor_get_info()
arch/ia64/kernel/acpi.c | 38 ++---------------- arch/x86/include/asm/mpspec.h | 2 +- arch/x86/kernel/acpi/boot.c | 88 +++++++++-------------------------------- arch/x86/kernel/apic/apic.c | 8 ++-- drivers/acpi/acpi_processor.c | 22 +++-------- drivers/acpi/processor_core.c | 26 +++++++++--- include/acpi/processor.h | 3 ++ include/linux/acpi.h | 2 +- 8 files changed, 60 insertions(+), 129 deletions(-)