[PATCH/RFC 5/6] drm: Constify drm_mode_config_funcs pointer

[Laurent Pinchart]

The DRM mode config functions structure declared by drivers and pointed
to by the drm_mode_config funcs field is never modified. Make it a const
pointer.

Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Cc: Inki Dae <inki.dae at samsung.com>
Cc: Alan Cox <alan at linux.intel.com>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: Ben Skeggs <bskeggs at redhat.com>
Cc: Alex Deucher <alexdeucher at gmail.com>
Cc: Dave Airlie <airlied at redhat.com>
Cc: Thomas Hellstrom <thellstrom at vmware.com>
Cc: Rob Clark <rob.clark at linaro.org>
---
 drivers/gpu/drm/exynos/exynos_drm_fb.c    |    2 +-
 drivers/gpu/drm/gma500/framebuffer.c      |    2 +-
 drivers/gpu/drm/i915/intel_display.c      |    2 +-
 drivers/gpu/drm/nouveau/nouveau_display.c |    2 +-
 drivers/gpu/drm/radeon/radeon_display.c   |    2 +-
 drivers/gpu/drm/udl/udl_modeset.c         |    2 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_kms.c       |    2 +-
 drivers/staging/omapdrm/omap_drv.c        |    2 +-
 include/drm/drm_crtc.h                    |    2 +-
 9 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c b/drivers/gpu/drm/exynos/exynos_drm_fb.c
index b0b0dcc..4ccfe43 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fb.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fb.c
@@ -200,7 +200,7 @@ static void exynos_drm_output_poll_changed(struct drm_device *dev)
 		drm_fb_helper_hotplug_event(fb_helper);
 }
 
-static struct drm_mode_config_funcs exynos_drm_mode_config_funcs = {
+static const struct drm_mode_config_funcs exynos_drm_mode_config_funcs = {
 	.fb_create = exynos_user_fb_create,
 	.output_poll_changed = exynos_drm_output_poll_changed,
 };
diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index fe00915..e20da1f 100644
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -771,7 +771,7 @@ void psb_modeset_init(struct drm_device *dev)
 	dev->mode_config.min_width = 0;
 	dev->mode_config.min_height = 0;
 
-	dev->mode_config.funcs = (void *) &psb_mode_funcs;
+	dev->mode_config.funcs = &psb_mode_funcs;
 
 	/* set memory base */
 	/* Oaktrail and Poulsbo should use BAR 2*/
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 1b1cf3b..71f19c7 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9189,7 +9189,7 @@ void intel_modeset_init(struct drm_device *dev)
 	dev->mode_config.preferred_depth = 24;
 	dev->mode_config.prefer_shadow = 1;
 
-	dev->mode_config.funcs = (void *)&intel_mode_funcs;
+	dev->mode_config.funcs = &intel_mode_funcs;
 
 	intel_init_quirks(dev);
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index a85e112..4b1cf74 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -300,7 +300,7 @@ nouveau_display_create(struct drm_device *dev)
 		disp->color_vibrance_property->values[1] = 200; /* -100..+100 */
 	}
 
-	dev->mode_config.funcs = (void *)&nouveau_mode_config_funcs;
+	dev->mode_config.funcs = &nouveau_mode_config_funcs;
 	dev->mode_config.fb_base = pci_resource_start(dev->pdev, 1);
 
 	dev->mode_config.min_width = 0;
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 0a1d4bd..1e74406 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -1251,7 +1251,7 @@ int radeon_modeset_init(struct radeon_device *rdev)
 	drm_mode_config_init(rdev->ddev);
 	rdev->mode_info.mode_config_initialized = true;
 
-	rdev->ddev->mode_config.funcs = (void *)&radeon_mode_funcs;
+	rdev->ddev->mode_config.funcs = &radeon_mode_funcs;
 
 	if (ASIC_IS_DCE5(rdev)) {
 		rdev->ddev->mode_config.max_width = 16384;
diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
index b3ecb3d..0d78167 100644
--- a/drivers/gpu/drm/udl/udl_modeset.c
+++ b/drivers/gpu/drm/udl/udl_modeset.c
@@ -395,7 +395,7 @@ int udl_modeset_init(struct drm_device *dev)
 	dev->mode_config.prefer_shadow = 0;
 	dev->mode_config.preferred_depth = 24;
 
-	dev->mode_config.funcs = (void *)&udl_mode_funcs;
+	dev->mode_config.funcs = &udl_mode_funcs;
 
 	drm_mode_create_dirty_info_property(dev);
 
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 2286d47..6b0078f 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -1178,7 +1178,7 @@ err_out:
 	return &vfb->base;
 }
 
-static struct drm_mode_config_funcs vmw_kms_funcs = {
+static const struct drm_mode_config_funcs vmw_kms_funcs = {
 	.fb_create = vmw_kms_fb_create,
 };
 
diff --git a/drivers/staging/omapdrm/omap_drv.c b/drivers/staging/omapdrm/omap_drv.c
index 071c770..1edbd77 100644
--- a/drivers/staging/omapdrm/omap_drv.c
+++ b/drivers/staging/omapdrm/omap_drv.c
@@ -58,7 +58,7 @@ static void omap_fb_output_poll_changed(struct drm_device *dev)
 	}
 }
 
-static struct drm_mode_config_funcs omap_mode_config_funcs = {
+static const struct drm_mode_config_funcs omap_mode_config_funcs = {
 	.fb_create = omap_framebuffer_create,
 	.output_poll_changed = omap_fb_output_poll_changed,
 };
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 201001c..556b645 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -754,7 +754,7 @@ struct drm_mode_config {
 
 	int min_width, min_height;
 	int max_width, max_height;
-	struct drm_mode_config_funcs *funcs;
+	const struct drm_mode_config_funcs *funcs;
 	resource_size_t fb_base;
 
 	/* output poll support */
-- 
1.7.3.4