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authorLee Jones <lee.jones@linaro.org>2020-11-16 17:40:57 +0000
committerDaniel Vetter <daniel.vetter@ffwll.ch>2020-11-17 20:05:05 +0100
commit7df5428975e97818b30d2b800c9e8b0734ea8da9 (patch)
tree5cea0df7c8090059af9a843ca0eebbf41b1cf9e6
parentf8cd9d9532c68ca00375ebba8dc71d8dca8250ba (diff)
drm/selftests/test-drm_mm: Mark 'hole_end' as always_unused
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 <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: "Christian König" <christian.koenig@amd.com> Cc: Nirmoy Das <nirmoy.aiemd@gmail.com> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20201116174112.1833368-28-lee.jones@linaro.org
-rw-r--r--drivers/gpu/drm/selftests/test-drm_mm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/selftests/test-drm_mm.c b/drivers/gpu/drm/selftests/test-drm_mm.c
index 95e212a9a74d..b768b53c4aee 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;