drm/<drivers>: Constify struct drm_driver

Only the following drivers aren't converted: - amdgpu, because of the driver_feature mangling due to virt support. Subsequent patch will address this. - nouveau, because DRIVER_ATOMIC uapi is still not the default on the platforms where it's supported (i.e. again driver_feature mangling) - vc4, again because of driver_feature mangling - qxl, because the ioctl table is somewhere else and moving that is maybe a bit too much, hence the num_ioctls assignment prevents a const driver structure. - arcpgu, because that is stuck behind a pending tiny-fication series from me. - legacy drivers, because legacy requires non-const drm_driver. Note that for armada I also went ahead and made the ioctl array const. Only cc'ing the driver people who've not been converted (everyone else is way too much). v2: Fix one misplaced const static, should be static const (0day) v3: - Improve commit message (Sam) Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: kernel test robot <lkp@intel.com> Acked-by: Maxime Ripard <mripard@kernel.org> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Dave Airlie <airlied@redhat.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: virtualization@lists.linux-foundation.org Cc: Harry Wentland <harry.wentland@amd.com> Cc: Leo Li <sunpeng.li@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Cc: Eric Anholt <eric@anholt.net> Cc: Maxime Ripard <mripard@kernel.org> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: nouveau@lists.freedesktop.org Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201104100425.1922351-5-daniel.vetter@ffwll.ch
mariux64 · Nov 6, 2020 · 70a59dd · 70a59dd
1 parent 8f5c7aa
commit 70a59dd
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Showing 63 changed files with 75 additions and 78 deletions.
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
@@ -58,7 +58,7 @@ static irqreturn_t komeda_kms_irq_handler(int irq, void *data)
 	return status;
 }
 
-static struct drm_driver komeda_kms_driver = {
+static const struct drm_driver komeda_kms_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.lastclose			= drm_fb_helper_lastclose,
 	DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE(komeda_gem_cma_dumb_create),

diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c
@@ -234,7 +234,7 @@ static void hdlcd_debugfs_init(struct drm_minor *minor)
 
 DEFINE_DRM_GEM_CMA_FOPS(fops);
 
-static struct drm_driver hdlcd_driver = {
+static const struct drm_driver hdlcd_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.irq_handler = hdlcd_irq,
 	.irq_preinstall = hdlcd_irq_preinstall,

diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
@@ -561,7 +561,7 @@ static void malidp_debugfs_init(struct drm_minor *minor)
 
 #endif //CONFIG_DEBUG_FS
 
-static struct drm_driver malidp_driver = {
+static const struct drm_driver malidp_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE(malidp_dumb_create),
 #ifdef CONFIG_DEBUG_FS

diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
@@ -27,15 +27,15 @@
 #include <drm/armada_drm.h>
 #include "armada_ioctlP.h"
 
-static struct drm_ioctl_desc armada_ioctls[] = {
+static const struct drm_ioctl_desc armada_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(ARMADA_GEM_CREATE, armada_gem_create_ioctl,0),
 	DRM_IOCTL_DEF_DRV(ARMADA_GEM_MMAP, armada_gem_mmap_ioctl, 0),
 	DRM_IOCTL_DEF_DRV(ARMADA_GEM_PWRITE, armada_gem_pwrite_ioctl, 0),
 };
 
 DEFINE_DRM_GEM_FOPS(armada_drm_fops);
 
-static struct drm_driver armada_drm_driver = {
+static const struct drm_driver armada_drm_driver = {
 	.lastclose		= drm_fb_helper_lastclose,
 	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd,
 	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle,
@@ -48,6 +48,7 @@ static struct drm_driver armada_drm_driver = {
 	.date			= "20120730",
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.ioctls			= armada_ioctls,
+	.num_ioctls = ARRAY_SIZE(armada_ioctls),
 	.fops			= &armada_drm_fops,
 };
 
@@ -275,8 +276,6 @@ static int __init armada_drm_init(void)
 {
 	int ret;
 
-	armada_drm_driver.num_ioctls = ARRAY_SIZE(armada_ioctls);
-
 	ret = platform_driver_register(&armada_lcd_platform_driver);
 	if (ret)
 		return ret;

diff --git a/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c b/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c
@@ -191,7 +191,7 @@ static void aspeed_gfx_unload(struct drm_device *drm)
 
 DEFINE_DRM_GEM_CMA_FOPS(fops);
 
-static struct drm_driver aspeed_gfx_driver = {
+static const struct drm_driver aspeed_gfx_driver = {
 	.driver_features        = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_CMA_DRIVER_OPS,
 	.fops = &fops,

diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
@@ -49,7 +49,7 @@ module_param_named(modeset, ast_modeset, int, 0400);
 
 DEFINE_DRM_GEM_FOPS(ast_fops);
 
-static struct drm_driver ast_driver = {
+static const struct drm_driver ast_driver = {
 	.driver_features = DRIVER_ATOMIC |
 			   DRIVER_GEM |
 			   DRIVER_MODESET,

diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
@@ -159,7 +159,7 @@ static inline struct ast_private *to_ast_private(struct drm_device *dev)
 	return container_of(dev, struct ast_private, base);
 }
 
-struct ast_private *ast_device_create(struct drm_driver *drv,
+struct ast_private *ast_device_create(const struct drm_driver *drv,
 				      struct pci_dev *pdev,
 				      unsigned long flags);
 

diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
@@ -392,7 +392,7 @@ static void ast_device_release(void *data)
 	ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa1, 0x04);
 }
 
-struct ast_private *ast_device_create(struct drm_driver *drv,
+struct ast_private *ast_device_create(const struct drm_driver *drv,
 				      struct pci_dev *pdev,
 				      unsigned long flags)
 {

diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
@@ -815,7 +815,7 @@ static void atmel_hlcdc_dc_irq_uninstall(struct drm_device *dev)
 
 DEFINE_DRM_GEM_CMA_FOPS(fops);
 
-static struct drm_driver atmel_hlcdc_dc_driver = {
+static const struct drm_driver atmel_hlcdc_dc_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.irq_handler = atmel_hlcdc_dc_irq_handler,
 	.irq_preinstall = atmel_hlcdc_dc_irq_uninstall,

diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -57,7 +57,7 @@ static int bochs_load(struct drm_device *dev)
 
 DEFINE_DRM_GEM_FOPS(bochs_fops);
 
-static struct drm_driver bochs_driver = {
+static const struct drm_driver bochs_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops			= &bochs_fops,
 	.name			= "bochs-drm",

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
@@ -480,7 +480,7 @@ static const struct file_operations fops = {
 	.mmap               = etnaviv_gem_mmap,
 };
 
-static struct drm_driver etnaviv_drm_driver = {
+static const struct drm_driver etnaviv_drm_driver = {
 	.driver_features    = DRIVER_GEM | DRIVER_RENDER,
 	.open               = etnaviv_open,
 	.postclose           = etnaviv_postclose,

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -113,7 +113,7 @@ static const struct file_operations exynos_drm_driver_fops = {
 	.release	= drm_release,
 };
 
-static struct drm_driver exynos_drm_driver = {
+static const struct drm_driver exynos_drm_driver = {
 	.driver_features	= DRIVER_MODESET | DRIVER_GEM
 				  | DRIVER_ATOMIC | DRIVER_RENDER,
 	.open			= exynos_drm_open,

diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
@@ -134,7 +134,7 @@ static irqreturn_t fsl_dcu_drm_irq(int irq, void *arg)
 
 DEFINE_DRM_GEM_CMA_FOPS(fsl_dcu_drm_fops);
 
-static struct drm_driver fsl_dcu_drm_driver = {
+static const struct drm_driver fsl_dcu_drm_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.load			= fsl_dcu_load,
 	.unload			= fsl_dcu_unload,
@@ -234,7 +234,6 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct resource *res;
 	void __iomem *base;
-	struct drm_driver *driver = &fsl_dcu_drm_driver;
 	struct clk *pix_clk_in;
 	char pix_clk_name[32];
 	const char *pix_clk_in_name;
@@ -304,7 +303,7 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev)
 
 	fsl_dev->tcon = fsl_tcon_init(dev);
 
-	drm = drm_dev_alloc(driver, dev);
+	drm = drm_dev_alloc(&fsl_dcu_drm_driver, dev);
 	if (IS_ERR(drm)) {
 		ret = PTR_ERR(drm);
 		goto unregister_pix_clk;

diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
@@ -34,7 +34,7 @@
 #include "psb_intel_reg.h"
 #include "psb_reg.h"
 
-static struct drm_driver driver;
+static const struct drm_driver driver;
 static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
 
 /*
@@ -491,7 +491,7 @@ static const struct file_operations psb_gem_fops = {
 	.read = drm_read,
 };
 
-static struct drm_driver driver = {
+static const struct drm_driver driver = {
 	.driver_features = DRIVER_MODESET | DRIVER_GEM,
 	.lastclose = drm_fb_helper_lastclose,
 

diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
@@ -43,7 +43,7 @@ static irqreturn_t hibmc_drm_interrupt(int irq, void *arg)
 	return IRQ_HANDLED;
 }
 
-static struct drm_driver hibmc_driver = {
+static const struct drm_driver hibmc_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops			= &hibmc_fops,
 	.name			= "hibmc",

diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
@@ -918,7 +918,7 @@ static const struct drm_mode_config_funcs ade_mode_config_funcs = {
 
 DEFINE_DRM_GEM_CMA_FOPS(ade_fops);
 
-static struct drm_driver ade_driver = {
+static const struct drm_driver ade_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops = &ade_fops,
 	DRM_GEM_CMA_DRIVER_OPS,

diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
@@ -40,7 +40,7 @@ struct kirin_drm_data {
 	u32 num_planes;
 	u32 prim_plane;
 
-	struct drm_driver *driver;
+	const struct drm_driver *driver;
 	const struct drm_crtc_helper_funcs *crtc_helper_funcs;
 	const struct drm_crtc_funcs *crtc_funcs;
 	const struct drm_plane_helper_funcs *plane_helper_funcs;

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
@@ -86,7 +86,7 @@
 #include "intel_pm.h"
 #include "vlv_suspend.h"
 
-static struct drm_driver driver;
+static const struct drm_driver driver;
 
 static int i915_get_bridge_dev(struct drm_i915_private *dev_priv)
 {
@@ -1737,7 +1737,7 @@ static const struct drm_ioctl_desc i915_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(I915_GEM_VM_DESTROY, i915_gem_vm_destroy_ioctl, DRM_RENDER_ALLOW),
 };
 
-static struct drm_driver driver = {
+static const struct drm_driver driver = {
 	/* Don't use MTRRs here; the Xserver or userspace app should
 	 * deal with them for Intel hardware.
 	 */

diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -81,7 +81,7 @@ static void mock_device_release(struct drm_device *dev)
 	i915_params_free(&i915->params);
 }
 
-static struct drm_driver mock_driver = {
+static const struct drm_driver mock_driver = {
 	.name = "mock",
 	.driver_features = DRIVER_GEM,
 	.release = mock_device_release,

diff --git a/drivers/gpu/drm/imx/dcss/dcss-kms.c b/drivers/gpu/drm/imx/dcss/dcss-kms.c
@@ -26,7 +26,7 @@ static const struct drm_mode_config_funcs dcss_drm_mode_config_funcs = {
 	.atomic_commit = drm_atomic_helper_commit,
 };
 
-static struct drm_driver dcss_kms_driver = {
+static const struct drm_driver dcss_kms_driver = {
 	.driver_features	= DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
 	DRM_GEM_CMA_DRIVER_OPS,
 	.fops			= &dcss_cma_fops,

diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c
@@ -144,7 +144,7 @@ static const struct drm_ioctl_desc imx_drm_ioctls[] = {
 	/* none so far */
 };
 
-static struct drm_driver imx_drm_driver = {
+static const struct drm_driver imx_drm_driver = {
 	.driver_features	= DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
 	DRM_GEM_CMA_DRIVER_OPS,
 	.ioctls			= imx_drm_ioctls,

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -716,7 +716,7 @@ static void ingenic_drm_disable_vblank(struct drm_crtc *crtc)
 
 DEFINE_DRM_GEM_CMA_FOPS(ingenic_drm_fops);
 
-static struct drm_driver ingenic_drm_driver_data = {
+static const struct drm_driver ingenic_drm_driver_data = {
 	.driver_features	= DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
 	.name			= "ingenic-drm",
 	.desc			= "DRM module for Ingenic SoCs",

diff --git a/drivers/gpu/drm/lima/lima_drv.c b/drivers/gpu/drm/lima/lima_drv.c
@@ -261,7 +261,7 @@ DEFINE_DRM_GEM_FOPS(lima_drm_driver_fops);
  * - 1.1.0 - add heap buffer support
  */
 
-static struct drm_driver lima_drm_driver = {
+static const struct drm_driver lima_drm_driver = {
 	.driver_features    = DRIVER_RENDER | DRIVER_GEM | DRIVER_SYNCOBJ,
 	.open               = lima_drm_driver_open,
 	.postclose          = lima_drm_driver_postclose,

diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c
@@ -178,7 +178,7 @@ static int mcde_modeset_init(struct drm_device *drm)
 
 DEFINE_DRM_GEM_CMA_FOPS(drm_fops);
 
-static struct drm_driver mcde_drm_driver = {
+static const struct drm_driver mcde_drm_driver = {
 	.driver_features =
 		DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
 	.lastclose = drm_fb_helper_lastclose,

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -321,7 +321,7 @@ struct drm_gem_object *mtk_drm_gem_prime_import(struct drm_device *dev,
 	return drm_gem_prime_import_dev(dev, dma_buf, private->dma_dev);
 }
 
-static struct drm_driver mtk_drm_driver = {
+static const struct drm_driver mtk_drm_driver = {
 	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
 
 	.dumb_create = mtk_drm_gem_dumb_create,

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
@@ -90,7 +90,7 @@ static int meson_dumb_create(struct drm_file *file, struct drm_device *dev,
 
 DEFINE_DRM_GEM_CMA_FOPS(fops);
 
-static struct drm_driver meson_driver = {
+static const struct drm_driver meson_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 
 	/* IRQ */

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -28,7 +28,7 @@ module_param_named(modeset, mgag200_modeset, int, 0400);
 
 DEFINE_DRM_GEM_FOPS(mgag200_driver_fops);
 
-static struct drm_driver mgag200_driver = {
+static const struct drm_driver mgag200_driver = {
 	.driver_features = DRIVER_ATOMIC | DRIVER_GEM | DRIVER_MODESET,
 	.fops = &mgag200_driver_fops,
 	.name = DRIVER_NAME,

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
@@ -393,7 +393,7 @@ static int msm_init_vram(struct drm_device *dev)
 	return ret;
 }
 
-static int msm_drm_init(struct device *dev, struct drm_driver *drv)
+static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct drm_device *ddev;
@@ -984,7 +984,7 @@ static const struct file_operations fops = {
 	.mmap               = msm_gem_mmap,
 };
 
-static struct drm_driver msm_driver = {
+static const struct drm_driver msm_driver = {
 	.driver_features    = DRIVER_GEM |
 				DRIVER_RENDER |
 				DRIVER_ATOMIC |

diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
@@ -289,7 +289,7 @@ static irqreturn_t mxsfb_irq_handler(int irq, void *data)
 
 DEFINE_DRM_GEM_CMA_FOPS(fops);
 
-static struct drm_driver mxsfb_driver = {
+static const struct drm_driver mxsfb_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.irq_handler		= mxsfb_irq_handler,
 	.irq_preinstall		= mxsfb_irq_disable,

diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -533,7 +533,7 @@ static const struct file_operations omapdriver_fops = {
 	.llseek = noop_llseek,
 };
 
-static struct drm_driver omap_drm_driver = {
+static const struct drm_driver omap_drm_driver = {
 	.driver_features = DRIVER_MODESET | DRIVER_GEM  |
 		DRIVER_ATOMIC | DRIVER_RENDER,
 	.open = dev_open,

diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c
@@ -548,7 +548,7 @@ DEFINE_DRM_GEM_FOPS(panfrost_drm_driver_fops);
  * - 1.0 - initial interface
  * - 1.1 - adds HEAP and NOEXEC flags for CREATE_BO
  */
-static struct drm_driver panfrost_drm_driver = {
+static const struct drm_driver panfrost_drm_driver = {
 	.driver_features	= DRIVER_RENDER | DRIVER_GEM | DRIVER_SYNCOBJ,
 	.open			= panfrost_open,
 	.postclose		= panfrost_postclose,

diff --git a/drivers/gpu/drm/pl111/pl111_drv.c b/drivers/gpu/drm/pl111/pl111_drv.c
@@ -213,7 +213,7 @@ pl111_gem_import_sg_table(struct drm_device *dev,
 
 DEFINE_DRM_GEM_CMA_FOPS(drm_fops);
 
-static struct drm_driver pl111_drm_driver = {
+static const struct drm_driver pl111_drm_driver = {
 	.driver_features =
 		DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
 	.ioctls = NULL,

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -297,7 +297,7 @@ static struct pci_device_id pciidlist[] = {
 
 MODULE_DEVICE_TABLE(pci, pciidlist);
 
-static struct drm_driver kms_driver;
+static const struct drm_driver kms_driver;
 
 bool radeon_device_is_virtual(void);
 
@@ -629,7 +629,7 @@ static const struct drm_ioctl_desc radeon_ioctls_kms[] = {
 	DRM_IOCTL_DEF_DRV(RADEON_GEM_USERPTR, radeon_gem_userptr_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
 };
 
-static struct drm_driver kms_driver = {
+static const struct drm_driver kms_driver = {
 	.driver_features =
 	    DRIVER_GEM | DRIVER_RENDER | DRIVER_MODESET,
 	.load = radeon_driver_load_kms,

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -507,7 +507,7 @@ MODULE_DEVICE_TABLE(of, rcar_du_of_table);
 
 DEFINE_DRM_GEM_CMA_FOPS(rcar_du_fops);
 
-static struct drm_driver rcar_du_driver = {
+static const struct drm_driver rcar_du_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE(rcar_du_dumb_create),
 	.fops			= &rcar_du_fops,