s390/irq: 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>

diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 2639a3d12736a81d94c5d712ac52b6bceea5d1ae..24b625c1d35b326e880ce25aeb18fd08cda27275 100644 (file)
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -30,6 +30,7 @@
 #include <asm/stacktrace.h>
 #include <asm/softirq_stack.h>
 #include <asm/vtime.h>
+#include <asm/asm.h>
 #include "entry.h"
 
 DEFINE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
@@ -129,9 +130,13 @@ static int irq_pending(struct pt_regs *regs)
 {
        int cc;
 
-       asm volatile("tpi 0\n"
-                    "ipm %0" : "=d" (cc) : : "cc");
-       return cc >> 28;
+       asm volatile(
+               "       tpi      0\n"
+               CC_IPM(cc)
+               : CC_OUT(cc, cc)
+               :
+               : CC_CLOBBER);
+       return CC_TRANSFORM(cc);
 }
 
 void noinstr do_io_irq(struct pt_regs *regs)