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Subject[PATCH] drm/arm: mark symbols static where possible
We get 2 warnings when building kernel with W=1:
drivers/gpu/drm/arm/malidp_planes.c:49:25: warning: no previous prototype for 'malidp_duplicate_plane_state' [-Wmissing-prototypes]
drivers/gpu/drm/arm/malidp_planes.c:66:6: warning: no previous prototype for 'malidp_destroy_plane_state' [-Wmissing-prototypes]

In fact, both functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
So this patch marks these functions with 'static'.

Signed-off-by: Baoyou Xie <>
drivers/gpu/drm/arm/malidp_planes.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c
index 82c193e..5339e87 100644
--- a/drivers/gpu/drm/arm/malidp_planes.c
+++ b/drivers/gpu/drm/arm/malidp_planes.c
@@ -46,7 +46,8 @@ static void malidp_de_plane_destroy(struct drm_plane *plane)
devm_kfree(plane->dev->dev, mp);

-struct drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane)
+static struct
+drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane)
struct malidp_plane_state *state, *m_state;

@@ -63,7 +64,7 @@ struct drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane)
return &state->base;

-void malidp_destroy_plane_state(struct drm_plane *plane,
+static void malidp_destroy_plane_state(struct drm_plane *plane,
struct drm_plane_state *state)
struct malidp_plane_state *m_state = to_malidp_plane_state(state);
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