[PATCH 4.18 15/79] x86/smp: Provide topology_is_primary_thread()

4.18-stable review patch. If anyone has any objections, please let me know. -- From: Thomas Gleixner If the CPU is supporting SMT then the primary thread can be found by checking the lower APIC ID bits for zero. smp_num_siblings is used to build the mask for the APIC ID bits

[PATCH 4.18 15/79] x86/smp: Provide topology_is_primary_thread()

4.18-stable review patch. If anyone has any objections, please let me know. -- From: Thomas Gleixner If the CPU is supporting SMT then the primary thread can be found by checking the lower APIC ID bits for zero. smp_num_siblings is used to build the mask for the APIC ID bits