In the macro drm_mm_for_each_hole() 'hole_end' is provided as a
container for 'hole_start + pos->hole_size', but is not utilised in
this use-case. We cannot simply delete the variable, so here we tell
the compiler that we're intentionally discarding the read value.
Fixes the following W=1 kernel build warning(s):
drivers/gpu/drm/selftests/test-drm_mm.c: In function ‘assert_no_holes’:
drivers/gpu/drm/selftests/test-drm_mm.c:57:18: warning: variable ‘hole_end’
set but not used [-Wunused-but-set-variable]
Cc: David Airlie <airl...@linux.ie>
Cc: Daniel Vetter <dan...@ffwll.ch>
Cc: "Christian König" <christian.koe...@amd.com>
Cc: Nirmoy Das <nirmoy.ai...@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jo...@linaro.org>
---
drivers/gpu/drm/selftests/test-drm_mm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/selftests/test-drm_mm.c
b/drivers/gpu/drm/selftests/test-drm_mm.c
index 95e212a9a74d2..b768b53c4aee3 100644
--- a/drivers/gpu/drm/selftests/test-drm_mm.c
+++ b/drivers/gpu/drm/selftests/test-drm_mm.c
@@ -54,7 +54,7 @@ static int igt_sanitycheck(void *ignored)
static bool assert_no_holes(const struct drm_mm *mm)
{
struct drm_mm_node *hole;
- u64 hole_start, hole_end;
+ u64 hole_start, __always_unused hole_end;
unsigned long count;
count = 0;
--
2.25.1
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