Staging: hv: remove custom cpuid function

Use the one that the kernel provides, it does it correctly.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/Hv.c

@@ -61,7 +61,7 @@ HvQueryHypervisorPresence (
     ecx = 0;
     edx = 0;
     op = HvCpuIdFunctionVersionAndFeatures;
-    do_cpuid(op, &eax, &ebx, &ecx, &edx);
+    cpuid(op, &eax, &ebx, &ecx, &edx);
 
 	return (ecx & HV_PRESENT_BIT);
 }
@@ -99,7 +99,7 @@ HvQueryHypervisorInfo (
     ecx = 0;
     edx = 0;
     op = HvCpuIdFunctionHvVendorAndMaxFunction;
-    do_cpuid(op, &eax, &ebx, &ecx, &edx);
+    cpuid(op, &eax, &ebx, &ecx, &edx);
 
     DPRINT_INFO(VMBUS, "Vendor ID: %c%c%c%c%c%c%c%c%c%c%c%c",
 	   (ebx & 0xFF),
@@ -121,7 +121,7 @@ HvQueryHypervisorInfo (
     ecx = 0;
     edx = 0;
     op = HvCpuIdFunctionHvInterface;
-    do_cpuid(op, &eax, &ebx, &ecx, &edx);
+    cpuid(op, &eax, &ebx, &ecx, &edx);
 
     DPRINT_INFO(VMBUS, "Interface ID: %c%c%c%c",
 	   (eax & 0xFF),
@@ -135,7 +135,7 @@ HvQueryHypervisorInfo (
 	ecx = 0;
 	edx = 0;
 	op = HvCpuIdFunctionMsHvVersion;
-	do_cpuid(op, &eax, &ebx, &ecx, &edx);
+	cpuid(op, &eax, &ebx, &ecx, &edx);
 	DPRINT_INFO(VMBUS, "OS Build:%d-%d.%d-%d-%d.%d",
 	       eax,
 	       ebx >> 16,

drivers/staging/hv/include/osd.h

@@ -101,12 +101,6 @@ struct osd_timer {
 #endif
 
 
-static inline void do_cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx)
-{
-	__asm__ __volatile__("cpuid" : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx) : "0" (op), "c" (ecx));
-}
-
-
 /* Osd routines */
 
 extern void* VirtualAllocExec(unsigned int size);