[PATCH] selftests/powerpc: Adjust wild_bctr to build with old gcc

Currently the selftest wild_bctr can fail to build when an old gcc is used,
notably on gcc using a binutils version <= 2.27, because the assembler does
not support the integer suffix UL.

That patch adjusts the wild_bctr test so the type promotion to UL for the
shifts on compilation still happens but the UL suffix is absent on the
stringification, so the inline asm code generated has no UL suffixes.

Signed-off-by: Gustavo Romero <redacted>
---
 tools/testing/selftests/powerpc/mm/wild_bctr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/powerpc/mm/wild_bctr.c b/tools/testing/selftests/powerpc/mm/wild_bctr.c
index 90469a9..7e56aa4 100644
--- a/tools/testing/selftests/powerpc/mm/wild_bctr.c
+++ b/tools/testing/selftests/powerpc/mm/wild_bctr.c

@@ -47,8 +47,8 @@ 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)	(((REG_POISON+0UL) << 48) | ((n) << 32) | ((REG_POISON+0UL) << 16) | (n))
 
 static inline void poison_regs(void)
 {

-- 
2.7.4