From 53ba5e09fe37518683ff8b3f28410ce0b9ed2f74 Mon Sep 17 00:00:00 2001 From: Andreas Krebbel Date: Mon, 17 Jul 2006 16:09:42 +0200 Subject: [PATCH] [S390] get_clock inline assembly. Add missing volatile to the get_clock / get_cycles inline assemblies to avoid that consecutive calls get optimized away. Signed-off-by: Andreas Krebbel Signed-off-by: Martin Schwidefsky --- include/asm-s390/timex.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/asm-s390/timex.h b/include/asm-s390/timex.h index 4848057dafe4..5d0332a4c2bd 100644 --- a/include/asm-s390/timex.h +++ b/include/asm-s390/timex.h @@ -19,7 +19,7 @@ static inline cycles_t get_cycles(void) { cycles_t cycles; - __asm__("stck 0(%1)" : "=m" (cycles) : "a" (&cycles) : "cc"); + __asm__ __volatile__ ("stck 0(%1)" : "=m" (cycles) : "a" (&cycles) : "cc"); return cycles >> 2; } @@ -27,7 +27,7 @@ static inline unsigned long long get_clock (void) { unsigned long long clk; - __asm__("stck 0(%1)" : "=m" (clk) : "a" (&clk) : "cc"); + __asm__ __volatile__ ("stck 0(%1)" : "=m" (clk) : "a" (&clk) : "cc"); return clk; } -- 2.20.1