tests/xics: Ensure no compiler optimisations in delay()

In case it would be tempted to "read ahead" the delay function

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/tests/xics/xics.c b/tests/xics/xics.c
index 46f9a016f81a684f469bf79f142a623012289567..f41c3a41c2efd34a227c3172c017c09b243b93f9 100644 (file)
--- a/tests/xics/xics.c
+++ b/tests/xics/xics.c
@@ -12,8 +12,8 @@ void delay(void)
 {
        static volatile int i;
 
-       for (i = 0; i < 10; ++i)
-               ;
+       for (i = 0; i < 16; ++i)
+               __asm__ volatile("" : : : "memory");
 }
 
 void print_number(unsigned int i) // only for i = 0-999