From: Fernando Luis Vazquez Cao Use the APIC to determine the hardware processor id in both UP and SMP kernels. Signed-off-by: Fernando Luis Vazquez Cao Cc: Andi Kleen Cc: Vivek Goyal Cc: "Eric W. Biederman" Cc: "Luck, Tony" Signed-off-by: Andrew Morton --- include/asm-x86_64/smp.h | 14 +++++++------- 1 files changed, 7 insertions(+), 7 deletions(-) diff -puN include/asm-x86_64/smp.h~use-the-apic-to-determine-the-hardware-processor-id-x86_64 include/asm-x86_64/smp.h --- a/include/asm-x86_64/smp.h~use-the-apic-to-determine-the-hardware-processor-id-x86_64 +++ a/include/asm-x86_64/smp.h @@ -57,12 +57,6 @@ static inline int num_booting_cpus(void) #define raw_smp_processor_id() read_pda(cpunumber) -static inline int hard_smp_processor_id(void) -{ - /* we don't want to mark this access volatile - bad code generation */ - return GET_APIC_ID(*(unsigned int *)(APIC_BASE+APIC_ID)); -} - extern int __cpu_disable(void); extern void __cpu_die(unsigned int cpu); extern void prefill_possible_map(void); @@ -71,7 +65,13 @@ extern unsigned __cpuinitdata disabled_c #define NO_PROC_ID 0xFF /* No processor magic marker */ -#endif +#endif /* CONFIG_SMP */ + +static inline int hard_smp_processor_id(void) +{ + /* we don't want to mark this access volatile - bad code generation */ + return GET_APIC_ID(*(unsigned int *)(APIC_BASE+APIC_ID)); +} /* * Some lowlevel functions might want to know about _