1 files changed, 6 insertions, 0 deletions

diff --git a/include/asm-x86_64/alternative.h b/include/asm-x86_64/alternative.h
index a09fe85c268e..a09427640764 100644
--- a/include/asm-x86_64/alternative.h
+++ b/include/asm-x86_64/alternative.h
@@ -103,6 +103,12 @@ static inline void alternatives_smp_switch(int smp) {}
                       ".previous" : output : [feat] "i" (feature), ##input)
 
 /*
+ * use this macro(s) if you need more than one output parameter
+ * in alternative_io
+ */
+#define ASM_OUTPUT2(a, b) a, b
+
+/*
  * Alternative inline assembly for SMP.
  *
  * The LOCK_PREFIX macro defined here replaces the LOCK and