From: Heiko Carstens <hca@linux.ibm.com>
Date: Thu, 7 Nov 2024 15:11:46 +0000 (+0100)
Subject: s390/extmem: Convert to use flag output macros
X-Git-Tag: v6.13-rc1~206^2~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0b7265ae169ac64bdc3ac3de536c32e38ec249af;p=thirdparty%2Fkernel%2Flinux.git

s390/extmem: 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/mm/extmem.c b/arch/s390/mm/extmem.c
index 282fefe107a24..4692136c0af13 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -28,6 +28,7 @@
 #include <asm/extmem.h>
 #include <asm/cpcmd.h>
 #include <asm/setup.h>
+#include <asm/asm.h>
 
 #define DCSS_PURGESEG   0x08
 #define DCSS_LOADSHRX	0x20
@@ -134,20 +135,21 @@ dcss_diag(int *func, void *parameter,
            unsigned long *ret1, unsigned long *ret2)
 {
 	unsigned long rx, ry;
-	int rc;
+	int cc;
 
 	rx = virt_to_phys(parameter);
 	ry = (unsigned long) *func;
 
 	diag_stat_inc(DIAG_STAT_X064);
 	asm volatile(
-		"	diag	%0,%1,0x64\n"
-		"	ipm	%2\n"
-		"	srl	%2,28\n"
-		: "+d" (rx), "+d" (ry), "=d" (rc) : : "cc");
+		"	diag	%[rx],%[ry],0x64\n"
+		CC_IPM(cc)
+		: CC_OUT(cc, cc), [rx] "+d" (rx), [ry] "+d" (ry)
+		:
+		: CC_CLOBBER);
 	*ret1 = rx;
 	*ret2 = ry;
-	return rc;
+	return CC_TRANSFORM(cc);
 }
 
 static inline int