[PATCH] selftests/mm: use __auto_type in swap() macro

Pranav Tyagi
2025-07-30T14:23:10Z

Replace typeof() with __auto_type in the swap() macro in uffd-stress.c.
__auto_type was introduced in GCC 4.9 and reduces the compile time for
all compilers. No functional changes intended.

Signed-off-by: Pranav Tyagi <pranav.tyagi03@gmail.com>
---
tools/testing/selftests/mm/uffd-stress.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/mm/uffd-stress.c b/tools/testing/selftests/mm/uffd-stress.c
index 40af7f67c407..c0f64df5085c 100644
--- a/tools/testing/selftests/mm/uffd-stress.c
+++ b/tools/testing/selftests/mm/uffd-stress.c
@@ -51,7 +51,7 @@ static char *zeropage;
pthread_attr_t attr;

#define swap(a, b) \
- do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0)
+ do { __auto_type __tmp = (a); (a) = (b); (b) = __tmp; } while (0)

const char *examples =
"# Run anonymous memory test on 100MiB region with 99999 bounces:\n"
--
2.49.0