openwrt/target/linux/bcm27xx/patches-6.1/950-0478-drm-vc4-Constify-container_of-wrappers.patch

From aec4486d6889afcfe706684f2d24cfe9350168b4 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Wed, 23 Nov 2022 16:25:53 +0100
Subject: [PATCH] drm/vc4: Constify container_of wrappers

None of our wrappers around container_of to access our objects from the
DRM object pointer actually modify the latter.

Let's make them const.

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20221123-rpi-kunit-tests-v1-11-051a0bb60a16@cerno.tech
---
 drivers/gpu/drm/vc4/vc4_drv.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

--- a/drivers/gpu/drm/vc4/vc4_drv.h
+++ b/drivers/gpu/drm/vc4/vc4_drv.h
@@ -238,7 +238,7 @@ struct vc4_dev {
 };
 
 static inline struct vc4_dev *
-to_vc4_dev(struct drm_device *dev)
+to_vc4_dev(const struct drm_device *dev)
 {
 	return container_of(dev, struct vc4_dev, base);
 }
@@ -291,7 +291,7 @@ struct vc4_bo {
 };
 
 static inline struct vc4_bo *
-to_vc4_bo(struct drm_gem_object *bo)
+to_vc4_bo(const struct drm_gem_object *bo)
 {
 	return container_of(to_drm_gem_dma_obj(bo), struct vc4_bo, base);
 }
@@ -304,7 +304,7 @@ struct vc4_fence {
 };
 
 static inline struct vc4_fence *
-to_vc4_fence(struct dma_fence *fence)
+to_vc4_fence(const struct dma_fence *fence)
 {
 	return container_of(fence, struct vc4_fence, base);
 }
@@ -365,7 +365,7 @@ struct vc4_plane {
 };
 
 static inline struct vc4_plane *
-to_vc4_plane(struct drm_plane *plane)
+to_vc4_plane(const struct drm_plane *plane)
 {
 	return container_of(plane, struct vc4_plane, base);
 }
@@ -441,7 +441,7 @@ struct vc4_plane_state {
 };
 
 static inline struct vc4_plane_state *
-to_vc4_plane_state(struct drm_plane_state *state)
+to_vc4_plane_state(const struct drm_plane_state *state)
 {
 	return container_of(state, struct vc4_plane_state, base);
 }
@@ -471,7 +471,7 @@ struct vc4_encoder {
 };
 
 static inline struct vc4_encoder *
-to_vc4_encoder(struct drm_encoder *encoder)
+to_vc4_encoder(const struct drm_encoder *encoder)
 {
 	return container_of(encoder, struct vc4_encoder, base);
 }
@@ -565,7 +565,7 @@ struct vc4_crtc {
 };
 
 static inline struct vc4_crtc *
-to_vc4_crtc(struct drm_crtc *crtc)
+to_vc4_crtc(const struct drm_crtc *crtc)
 {
 	return container_of(crtc, struct vc4_crtc, base);
 }
@@ -608,7 +608,7 @@ struct vc4_crtc_state {
 #define VC4_HVS_CHANNEL_DISABLED ((unsigned int)-1)
 
 static inline struct vc4_crtc_state *
-to_vc4_crtc_state(struct drm_crtc_state *crtc_state)
+to_vc4_crtc_state(const struct drm_crtc_state *crtc_state)
 {
 	return container_of(crtc_state, struct vc4_crtc_state, base);
 }