From 0b2e4b844826588924ef7581b475f0a5b6b11bcd Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Mon, 30 Nov 2015 11:55:49 +0100 Subject: [PATCH] x86: drop dummy input from alternative_{input,io}() We don't need the claimed API compatibility. No change in generated code. Signed-off-by: Jan Beulich Reviewed-by: Andrew Cooper --- xen/include/asm-x86/alternative.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/xen/include/asm-x86/alternative.h b/xen/include/asm-x86/alternative.h index 7ddbd76b47..7d1135437e 100644 --- a/xen/include/asm-x86/alternative.h +++ b/xen/include/asm-x86/alternative.h @@ -83,16 +83,15 @@ extern void alternative_instructions(void); * Best is to use constraints that are fixed size (like (%1) ... "r") * If you use variable sized constraints like "m" or "g" in the * replacement make sure to pad to the worst case length. - * Leaving an unused argument 0 to keep API compatibility. */ #define alternative_input(oldinstr, newinstr, feature, input...) \ asm volatile (ALTERNATIVE(oldinstr, newinstr, feature) \ - : : "i" (0), ## input) + : : input) /* Like alternative_input, but with a single output argument */ #define alternative_io(oldinstr, newinstr, feature, output, input...) \ asm volatile (ALTERNATIVE(oldinstr, newinstr, feature) \ - : output : "i" (0), ## input) + : output : input) /* Use this macro(s) if you need more than one output parameter. */ #define ASM_OUTPUT2(a...) a -- 2.30.2