From: Fabio Estevam <fabio.este...@nxp.com>

ipu_plane_state_reset(), ipu_plane_duplicate_state() and 
ipu_plane_destroy_state() are only used in this file, so make them static.

This fixes the following sparse warnings:

drivers/gpu/drm/imx/ipuv3-plane.c:275:6: warning: symbol 
'ipu_plane_state_reset' was not declared. Should it be static?
drivers/gpu/drm/imx/ipuv3-plane.c:295:24: warning: symbol 
'ipu_plane_duplicate_state' was not declared. Should it be static?
drivers/gpu/drm/imx/ipuv3-plane.c:309:6: warning: symbol 
'ipu_plane_destroy_state' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.este...@nxp.com>
---
 drivers/gpu/drm/imx/ipuv3-plane.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c 
b/drivers/gpu/drm/imx/ipuv3-plane.c
index 57ed56d..d9f0a76 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -272,7 +272,7 @@ static void ipu_plane_destroy(struct drm_plane *plane)
        kfree(ipu_plane);
 }
 
-void ipu_plane_state_reset(struct drm_plane *plane)
+static void ipu_plane_state_reset(struct drm_plane *plane)
 {
        struct ipu_plane_state *ipu_state;
 
@@ -292,7 +292,8 @@ void ipu_plane_state_reset(struct drm_plane *plane)
        plane->state = &ipu_state->base;
 }
 
-struct drm_plane_state *ipu_plane_duplicate_state(struct drm_plane *plane)
+static struct drm_plane_state *
+ipu_plane_duplicate_state(struct drm_plane *plane)
 {
        struct ipu_plane_state *state;
 
@@ -306,8 +307,8 @@ struct drm_plane_state *ipu_plane_duplicate_state(struct 
drm_plane *plane)
        return &state->base;
 }
 
-void ipu_plane_destroy_state(struct drm_plane *plane,
-                            struct drm_plane_state *state)
+static void ipu_plane_destroy_state(struct drm_plane *plane,
+                                   struct drm_plane_state *state)
 {
        struct ipu_plane_state *ipu_state = to_ipu_plane_state(state);
 
-- 
2.7.4

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