x86: msr: propagate errors from smp_call_function_single()

[linux-2.6-omap-h63xx.git] / include / asm-x86 / msr.h

diff --git a/include/asm-x86/msr.h b/include/asm-x86/msr.h
index 2b5f2c91db25ce8b3879c6673fa2514cee80b8ce..ad5f2decf7f7b2a5e230cf9250cb786771320363 100644 (file)
--- a/include/asm-x86/msr.h
+++ b/include/asm-x86/msr.h
@@ -66,7 +66,7 @@ static inline unsigned long long native_read_msr_safe(unsigned int msr,
 static inline void native_write_msr(unsigned int msr,
                                    unsigned low, unsigned high)
 {
-       asm volatile("wrmsr" : : "c" (msr), "a"(low), "d" (high));
+       asm volatile("wrmsr" : : "c" (msr), "a"(low), "d" (high) : "memory");
 }
 
 static inline int native_write_msr_safe(unsigned int msr,
@@ -81,7 +81,8 @@ static inline int native_write_msr_safe(unsigned int msr,
                     _ASM_EXTABLE(2b, 3b)
                     : "=a" (err)
                     : "c" (msr), "0" (low), "d" (high),
-                    "i" (-EFAULT));
+                      "i" (-EFAULT)
+                    : "memory");
        return err;
 }
 
@@ -191,19 +192,20 @@ do {                                                            \
 #define write_rdtscp_aux(val) wrmsr(0xc0000103, (val), 0)
 
 #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);
+int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
+int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
 int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
-
 int wrmsr_safe_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)
+static inline int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
 {
        rdmsr(msr_no, *l, *h);
+       return 0;
 }
-static inline void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
+static inline int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
 {
        wrmsr(msr_no, l, h);
+       return 0;
 }
 static inline int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no,
                                    u32 *l, u32 *h)