4 files changed, 6 insertions, 31 deletions

diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c
index 4e017fb30fb3..1a93c3738404 100644
--- a/arch/x86_64/kernel/mce.c
+++ b/arch/x86_64/kernel/mce.c
@@ -182,7 +182,7 @@ void do_machine_check(struct pt_regs * regs, long error_code)
                 goto out2;
 
         memset(&m, 0, sizeof(struct mce));
-        m.cpu = safe_smp_processor_id();
+        m.cpu = smp_processor_id();
         rdmsrl(MSR_IA32_MCG_STATUS, m.mcgstatus);
         if (!(m.mcgstatus & MCG_STATUS_RIPV))
                 kill_it = 1;
diff --git a/arch/x86_64/kernel/smp.c b/arch/x86_64/kernel/smp.c
index 2df988bbf312..4f67697f5036 100644
--- a/arch/x86_64/kernel/smp.c
+++ b/arch/x86_64/kernel/smp.c
@@ -522,26 +522,3 @@ asmlinkage void smp_call_function_interrupt(void)
         }
 }
 
-int safe_smp_processor_id(void)
-{
-        unsigned apicid, i;
-
-        if (disable_apic || !apic_mapped)
-                return 0;
-
-        apicid = hard_smp_processor_id();
-        if (apicid < NR_CPUS && x86_cpu_to_apicid[apicid] == apicid)
-                return apicid;
-
-        for (i = 0; i < NR_CPUS; ++i) {
-                if (x86_cpu_to_apicid[i] == apicid)
-                        return i;
-        }
-
-        /* No entries in x86_cpu_to_apicid?  Either no MPS|ACPI,
-         * or called too early.  Either way, we must be CPU 0. */
-        if (x86_cpu_to_apicid[0] == BAD_APICID)
-                return 0;
-
-        return 0; /* Should not happen */
-}
diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c
index 34660b1e2720..38bc821e457b 100644
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -264,7 +264,7 @@ static int dump_trace_unwind(struct unwind_frame_info *info, void *context)
 void dump_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * stack,
                 struct stacktrace_ops *ops, void *data)
 {
-        const unsigned cpu = safe_smp_processor_id();
+        const unsigned cpu = smp_processor_id();
         unsigned long *irqstack_end = (unsigned long *)cpu_pda(cpu)->irqstackptr;
         unsigned used = 0;
 
@@ -429,7 +429,7 @@ _show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *rsp)
 {
         unsigned long *stack;
         int i;
-        const int cpu = safe_smp_processor_id();
+        const int cpu = smp_processor_id();
         unsigned long *irqstack_end = (unsigned long *) (cpu_pda(cpu)->irqstackptr);
         unsigned long *irqstack = (unsigned long *) (cpu_pda(cpu)->irqstackptr - IRQSTACKSIZE);
 
@@ -483,7 +483,7 @@ void show_registers(struct pt_regs *regs)
         int i;
         int in_kernel = !user_mode(regs);
         unsigned long rsp;
-        const int cpu = safe_smp_processor_id(); 
+        const int cpu = smp_processor_id();
         struct task_struct *cur = cpu_pda(cpu)->pcurrent;
 
                 rsp = regs->rsp;
@@ -558,7 +558,7 @@ static unsigned int die_nest_count;
 
 unsigned __kprobes long oops_begin(void)
 {
-        int cpu = safe_smp_processor_id();
+        int cpu = smp_processor_id();
         unsigned long flags;
 
         oops_enter();
@@ -636,7 +636,7 @@ void __kprobes die_nmi(char *str, struct pt_regs *regs, int do_panic)
          * We are in trouble anyway, lets at least try
          * to get a message out.
          */
-        printk(str, safe_smp_processor_id());
+        printk(str, smp_processor_id());
         show_registers(regs);
         if (kexec_should_crash(current))
                 crash_kexec(regs);
diff --git a/include/asm-x86_64/smp.h b/include/asm-x86_64/smp.h
index 498fbc1fc179..58b5d6149a42 100644
--- a/include/asm-x86_64/smp.h
+++ b/include/asm-x86_64/smp.h
@@ -66,7 +66,6 @@ static inline int hard_smp_processor_id(void)
         return GET_APIC_ID(*(unsigned int *)(APIC_BASE+APIC_ID));
 }
 
-extern int safe_smp_processor_id(void);
 extern int __cpu_disable(void);
 extern void __cpu_die(unsigned int cpu);
 extern void prefill_possible_map(void);
@@ -100,7 +99,6 @@ static inline int cpu_present_to_apicid(int mps_cpu)
 
 #ifndef CONFIG_SMP
 #define stack_smp_processor_id() 0
-#define safe_smp_processor_id() 0
 #define cpu_logical_map(x) (x)
 #else
 #include <asm/thread_info.h>