The DRM buddy test uses a fixed 12 bit shift to covert from pages to
bytes. This number is then used to confirm that (chunk_size < PAGE_SIZE)
which can lead to a failing drm_buddy_init on systems with PAGE_SIZE > 4k.
Fixes: 92937f170d3f ("drm/selftests: add drm buddy alloc range testcase")
Signed-off-by: Nico Pache <npache@xxxxxxxxxx>
---
drivers/gpu/drm/tests/drm_buddy_test.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/tests/drm_buddy_test.c b/drivers/gpu/drm/tests/drm_buddy_test.c
index 09ee6f6af896..a62b2690d3c2 100644
--- a/drivers/gpu/drm/tests/drm_buddy_test.c
+++ b/drivers/gpu/drm/tests/drm_buddy_test.c
@@ -318,8 +318,8 @@ static void mm_config(u64 *size, u64 *chunk_size)
s &= -ms;
/* Convert from pages to bytes */
- *chunk_size = (u64)ms << 12;
- *size = (u64)s << 12;
+ *chunk_size = (u64)ms << PAGE_SHIFT;
+ *size = (u64)s << PAGE_SHIFT;
}
static void drm_test_buddy_alloc_pathological(struct kunit *test)
--
2.39.2
