2 files changed, 22 insertions, 0 deletions

diff --git a/include/asm-i386/msr.h b/include/asm-i386/msr.h
index 3516a1fb38e0..8c35f3d90a89 100644
--- a/include/asm-i386/msr.h
+++ b/include/asm-i386/msr.h
@@ -83,8 +83,19 @@ static inline void wrmsrl (unsigned long msr, unsigned long long val)
                           : "c" (counter))
 #endif  /* !CONFIG_PARAVIRT */
 
+#ifdef CONFIG_SMP
 void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
 void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
+#else  /*  CONFIG_SMP  */
+static inline void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
+{
+        rdmsr(msr_no, *l, *h);
+}
+static inline void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
+{
+        wrmsr(msr_no, l, h);
+}
+#endif  /*  CONFIG_SMP  */
 
 /* symbolic names for some interesting MSRs */
 /* Intel defined MSRs. */
diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h
index 995a2b5fb26b..902f9a58617e 100644
--- a/include/asm-x86_64/msr.h
+++ b/include/asm-x86_64/msr.h
@@ -160,8 +160,19 @@ static inline unsigned int cpuid_edx(unsigned int op)
 #define MSR_IA32_UCODE_WRITE            0x79
 #define MSR_IA32_UCODE_REV              0x8b
 
+#ifdef CONFIG_SMP
 void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
 void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
+#else  /*  CONFIG_SMP  */
+static inline void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
+{
+        rdmsr(msr_no, *l, *h);
+}
+static inline void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
+{
+        wrmsr(msr_no, l, h);
+}
+#endif  /*  CONFIG_SMP  */
 
 #endif