x86/boot: Use CC_SET()/CC_OUT() instead of open coding it

Remove open-coded uses of set instructions with CC_SET()/CC_OUT().

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20180629142844.15200-1-ubizjak@gmail.com

diff --git a/arch/x86/boot/bitops.h b/arch/x86/boot/bitops.h
index 0d41d68131cc43bcfae0bf88da2561cce6b0129b..2e1382486e91935a509c4991099da6a6787f32ef 100644 (file)
--- a/arch/x86/boot/bitops.h
+++ b/arch/x86/boot/bitops.h
@@ -17,6 +17,7 @@
 #define _LINUX_BITOPS_H                /* Inhibit inclusion of <linux/bitops.h> */
 
 #include <linux/types.h>
+#include <asm/asm.h>
 
 static inline bool constant_test_bit(int nr, const void *addr)
 {
@@ -28,7 +29,7 @@ static inline bool variable_test_bit(int nr, const void *addr)
        bool v;
        const u32 *p = (const u32 *)addr;
 
-       asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
+       asm("btl %2,%1" CC_SET(c) : CC_OUT(c) (v) : "m" (*p), "Ir" (nr));
        return v;
 }
 

diff --git a/arch/x86/boot/string.c b/arch/x86/boot/string.c
index 16f49123d747b7a1c224b75c60d8a3af1e8e701c..c4428a176973311950429e0ba00c4ce13e9f6fe6 100644 (file)
--- a/arch/x86/boot/string.c
+++ b/arch/x86/boot/string.c
@@ -13,6 +13,7 @@
  */
 
 #include <linux/types.h>
+#include <asm/asm.h>
 #include "ctype.h"
 #include "string.h"
 
@@ -28,8 +29,8 @@
 int memcmp(const void *s1, const void *s2, size_t len)
 {
        bool diff;
-       asm("repe; cmpsb; setnz %0"
-           : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
+       asm("repe; cmpsb" CC_SET(nz)
+           : CC_OUT(nz) (diff), "+D" (s1), "+S" (s2), "+c" (len));
        return diff;
 }