diff mbox series

[5/6] arm64: archrandom: Use asm/ccset.h macros in __arm64_rndr

Message ID 20200311180416.6509-6-richard.henderson@linaro.org (mailing list archive)
State New, archived
Headers show
Series arm64: gcc asm flag outputs | expand

Commit Message

Richard Henderson March 11, 2020, 6:04 p.m. UTC 
Uses of __arm64_rndr always (indirectly) feed a branch.
This allows the compiler to use flags directly.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 arch/arm64/include/asm/archrandom.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/arch/arm64/include/asm/archrandom.h b/arch/arm64/include/asm/archrandom.h
index 3fe02da70004..f65df47283a6 100644
--- a/arch/arm64/include/asm/archrandom.h
+++ b/arch/arm64/include/asm/archrandom.h
@@ -6,6 +6,7 @@ 
 
 #include <linux/random.h>
 #include <asm/cpufeature.h>
+#include <asm/ccset.h>
 
 static inline bool __arm64_rndr(unsigned long *v)
 {
@@ -17,10 +18,10 @@  static inline bool __arm64_rndr(unsigned long *v)
 	 */
 	asm volatile(
 		__mrs_s("%0", SYS_RNDR_EL0) "\n"
-	"	cset %w1, ne\n"
-	: "=r" (*v), "=r" (ok)
+		CC_SET(ne)
+	: "=r" (*v), CC_OUT(ne) (ok)
 	:
-	: "cc");
+	: CC_CLOBBER);
 
 	return ok;
 }