s390/smp: Convert to use flag output macros

Use flag output macros in inline asm to allow for better code generation if
the compiler has support for the flag output constraint.

Reviewed-by: Juergen Christ <jchrist@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

Author: hcahca

arch/s390/include/asm/sigp.h

@@ -38,6 +38,8 @@
 
 #ifndef __ASSEMBLY__
 
+#include <asm/asm.h>
+
 static inline int ____pcpu_sigp(u16 addr, u8 order, unsigned long parm,
 				u32 *status)
 {
@@ -46,13 +48,12 @@ static inline int ____pcpu_sigp(u16 addr, u8 order, unsigned long parm,
 
 	asm volatile(
 		"	sigp	%[r1],%[addr],0(%[order])\n"
-		"	ipm	%[cc]\n"
-		"	srl	%[cc],28\n"
-		: [cc] "=&d" (cc), [r1] "+&d" (r1.pair)
+		CC_IPM(cc)
+		: CC_OUT(cc, cc), [r1] "+d" (r1.pair)
 		: [addr] "d" (addr), [order] "a" (order)
-		: "cc");
+		: CC_CLOBBER);
 	*status = r1.even;
-	return cc;
+	return CC_TRANSFORM(cc);
 }
 
 static inline int __pcpu_sigp(u16 addr, u8 order, unsigned long parm,