1 files changed, 3 insertions, 2 deletions

diff --git a/tools/testing/selftests/powerpc/mm/wild_bctr.c b/tools/testing/selftests/powerpc/mm/wild_bctr.c
index 90469a9e49d4..f2fa101c5a6a 100644
--- a/tools/testing/selftests/powerpc/mm/wild_bctr.c
+++ b/tools/testing/selftests/powerpc/mm/wild_bctr.c
@@ -47,8 +47,9 @@ static int ok(void)
         return 0;
 }
 
-#define REG_POISON      0x5a5aUL
-#define POISONED_REG(n) ((REG_POISON << 48) | ((n) << 32) | (REG_POISON << 16) | (n))
+#define REG_POISON      0x5a5a
+#define POISONED_REG(n) ((((unsigned long)REG_POISON) << 48) | ((n) << 32) | \
+                         (((unsigned long)REG_POISON) << 16) | (n))
 
 static inline void poison_regs(void)
 {