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-rw-r--r--include/linux/compiler-clang.h1
-rw-r--r--include/linux/compiler_types.h3
2 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
index 107ce05bd16e..7edf1a07b535 100644
--- a/include/linux/compiler-clang.h
+++ b/include/linux/compiler-clang.h
@@ -145,6 +145,7 @@
*/
#define ASM_INPUT_G "ir"
#define ASM_INPUT_RM "r"
+#define ASM_OUTPUT_RM "=r"
/*
* Declare compiler support for __typeof_unqual__() operator.
diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h
index 1280693766b9..d3318a3c2577 100644
--- a/include/linux/compiler_types.h
+++ b/include/linux/compiler_types.h
@@ -548,11 +548,12 @@ struct ftrace_likely_data {
/*
* Clang has trouble with constraints with multiple
- * alternative behaviors (mainly "g" and "rm").
+ * alternative behaviors ("g" , "rm" and "=rm").
*/
#ifndef ASM_INPUT_G
#define ASM_INPUT_G "g"
#define ASM_INPUT_RM "rm"
+ #define ASM_OUTPUT_RM "=rm"
#endif
#ifdef CONFIG_CC_HAS_ASM_INLINE