drm: Pass the user drm_mode_fb_cmd2 as const to .fb_create()

Drivers shouldn't clobber the passed in addfb ioctl parameters.
i915 was doing just that. To prevent it from happening again,
pass the struct around as const, starting all the way from
internal_framebuffer_create().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

50 files changed, 74 insertions, 74 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index e173a5a02f0d..7d5e0583c95c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
@@ -481,7 +481,7 @@ static const struct drm_framebuffer_funcs amdgpu_fb_funcs = {
 int
 amdgpu_framebuffer_init(struct drm_device *dev,
                         struct amdgpu_framebuffer *rfb,
-                        struct drm_mode_fb_cmd2 *mode_cmd,
+                        const struct drm_mode_fb_cmd2 *mode_cmd,
                         struct drm_gem_object *obj)
 {
         int ret;
@@ -498,7 +498,7 @@ amdgpu_framebuffer_init(struct drm_device *dev,
 static struct drm_framebuffer *
 amdgpu_user_framebuffer_create(struct drm_device *dev,
                                struct drm_file *file_priv,
-                               struct drm_mode_fb_cmd2 *mode_cmd)
+                               const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct drm_gem_object *obj;
         struct amdgpu_framebuffer *amdgpu_fb;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
index b62c1710cab6..de4529969778 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
@@ -551,7 +551,7 @@ int amdgpu_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
 
 int amdgpu_framebuffer_init(struct drm_device *dev,
                              struct amdgpu_framebuffer *rfb,
-                             struct drm_mode_fb_cmd2 *mode_cmd,
+                             const struct drm_mode_fb_cmd2 *mode_cmd,
                              struct drm_gem_object *obj);
 
 int amdgpufb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
diff --git a/drivers/gpu/drm/armada/armada_fb.c b/drivers/gpu/drm/armada/armada_fb.c
index 1c90969def3e..5fa4bf20b232 100644
--- a/drivers/gpu/drm/armada/armada_fb.c
+++ b/drivers/gpu/drm/armada/armada_fb.c
@@ -35,7 +35,7 @@ static const struct drm_framebuffer_funcs armada_fb_funcs = {
 };
 
 struct armada_framebuffer *armada_framebuffer_create(struct drm_device *dev,
-        struct drm_mode_fb_cmd2 *mode, struct armada_gem_object *obj)
+        const struct drm_mode_fb_cmd2 *mode, struct armada_gem_object *obj)
 {
         struct armada_framebuffer *dfb;
         uint8_t format, config;
@@ -101,7 +101,7 @@ struct armada_framebuffer *armada_framebuffer_create(struct drm_device *dev,
 }
 
 static struct drm_framebuffer *armada_fb_create(struct drm_device *dev,
-        struct drm_file *dfile, struct drm_mode_fb_cmd2 *mode)
+        struct drm_file *dfile, const struct drm_mode_fb_cmd2 *mode)
 {
         struct armada_gem_object *obj;
         struct armada_framebuffer *dfb;
diff --git a/drivers/gpu/drm/armada/armada_fb.h b/drivers/gpu/drm/armada/armada_fb.h
index ce3f12ebfc53..48073c4f54d8 100644
--- a/drivers/gpu/drm/armada/armada_fb.h
+++ b/drivers/gpu/drm/armada/armada_fb.h
@@ -19,6 +19,6 @@ struct armada_framebuffer {
 #define drm_fb_obj(fb) drm_fb_to_armada_fb(fb)->obj
 
 struct armada_framebuffer *armada_framebuffer_create(struct drm_device *,
-        struct drm_mode_fb_cmd2 *, struct armada_gem_object *);
+        const struct drm_mode_fb_cmd2 *, struct armada_gem_object *);
 
 #endif
diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
index 2e931eeba105..eb5715994ac2 100644
--- a/drivers/gpu/drm/ast/ast_drv.h
+++ b/drivers/gpu/drm/ast/ast_drv.h
@@ -308,7 +308,7 @@ extern void ast_mode_fini(struct drm_device *dev);
 
 int ast_framebuffer_init(struct drm_device *dev,
                          struct ast_framebuffer *ast_fb,
-                         struct drm_mode_fb_cmd2 *mode_cmd,
+                         const struct drm_mode_fb_cmd2 *mode_cmd,
                          struct drm_gem_object *obj);
 
 int ast_fbdev_init(struct drm_device *dev);
diff --git a/drivers/gpu/drm/ast/ast_fb.c b/drivers/gpu/drm/ast/ast_fb.c
index a37e7ea4a00c..5320f8c57884 100644
--- a/drivers/gpu/drm/ast/ast_fb.c
+++ b/drivers/gpu/drm/ast/ast_fb.c
@@ -163,7 +163,7 @@ static struct fb_ops astfb_ops = {
 };
 
 static int astfb_create_object(struct ast_fbdev *afbdev,
-                               struct drm_mode_fb_cmd2 *mode_cmd,
+                               const struct drm_mode_fb_cmd2 *mode_cmd,
                                struct drm_gem_object **gobj_p)
 {
         struct drm_device *dev = afbdev->helper.dev;
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index 541a610667ad..9759009d1da3 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -309,7 +309,7 @@ static const struct drm_framebuffer_funcs ast_fb_funcs = {
 
 int ast_framebuffer_init(struct drm_device *dev,
                          struct ast_framebuffer *ast_fb,
-                         struct drm_mode_fb_cmd2 *mode_cmd,
+                         const struct drm_mode_fb_cmd2 *mode_cmd,
                          struct drm_gem_object *obj)
 {
         int ret;
@@ -327,7 +327,7 @@ int ast_framebuffer_init(struct drm_device *dev,
 static struct drm_framebuffer *
 ast_user_framebuffer_create(struct drm_device *dev,
                struct drm_file *filp,
-               struct drm_mode_fb_cmd2 *mode_cmd)
+               const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct drm_gem_object *obj;
         struct ast_framebuffer *ast_fb;
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
index 244df0a440b7..816895447155 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
@@ -402,7 +402,7 @@ static irqreturn_t atmel_hlcdc_dc_irq_handler(int irq, void *data)
 }
 
 static struct drm_framebuffer *atmel_hlcdc_fb_create(struct drm_device *dev,
-                struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd)
+                struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         return drm_fb_cma_create(dev, file_priv, mode_cmd);
 }
diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h
index 71f2687fc3cc..19b5adaebe24 100644
--- a/drivers/gpu/drm/bochs/bochs.h
+++ b/drivers/gpu/drm/bochs/bochs.h
@@ -149,7 +149,7 @@ int bochs_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev,
 
 int bochs_framebuffer_init(struct drm_device *dev,
                            struct bochs_framebuffer *gfb,
-                           struct drm_mode_fb_cmd2 *mode_cmd,
+                           const struct drm_mode_fb_cmd2 *mode_cmd,
                            struct drm_gem_object *obj);
 int bochs_bo_pin(struct bochs_bo *bo, u32 pl_flag, u64 *gpu_addr);
 int bochs_bo_unpin(struct bochs_bo *bo);
diff --git a/drivers/gpu/drm/bochs/bochs_fbdev.c b/drivers/gpu/drm/bochs/bochs_fbdev.c
index 09a0637aab3e..7520bf81fc25 100644
--- a/drivers/gpu/drm/bochs/bochs_fbdev.c
+++ b/drivers/gpu/drm/bochs/bochs_fbdev.c
@@ -34,7 +34,7 @@ static struct fb_ops bochsfb_ops = {
 };
 
 static int bochsfb_create_object(struct bochs_device *bochs,
-                                 struct drm_mode_fb_cmd2 *mode_cmd,
+                                 const struct drm_mode_fb_cmd2 *mode_cmd,
                                  struct drm_gem_object **gobj_p)
 {
         struct drm_device *dev = bochs->dev;
diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c
index f69e6bf9bb0e..d812ad014da5 100644
--- a/drivers/gpu/drm/bochs/bochs_mm.c
+++ b/drivers/gpu/drm/bochs/bochs_mm.c
@@ -484,7 +484,7 @@ static const struct drm_framebuffer_funcs bochs_fb_funcs = {
 
 int bochs_framebuffer_init(struct drm_device *dev,
                            struct bochs_framebuffer *gfb,
-                           struct drm_mode_fb_cmd2 *mode_cmd,
+                           const struct drm_mode_fb_cmd2 *mode_cmd,
                            struct drm_gem_object *obj)
 {
         int ret;
@@ -502,7 +502,7 @@ int bochs_framebuffer_init(struct drm_device *dev,
 static struct drm_framebuffer *
 bochs_user_framebuffer_create(struct drm_device *dev,
                               struct drm_file *filp,
-                              struct drm_mode_fb_cmd2 *mode_cmd)
+                              const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct drm_gem_object *obj;
         struct bochs_framebuffer *bochs_fb;
diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.h b/drivers/gpu/drm/cirrus/cirrus_drv.h
index d772f7afafeb..b774d637a00f 100644
--- a/drivers/gpu/drm/cirrus/cirrus_drv.h
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.h
@@ -206,7 +206,7 @@ int cirrus_dumb_create(struct drm_file *file,
 
 int cirrus_framebuffer_init(struct drm_device *dev,
                            struct cirrus_framebuffer *gfb,
-                            struct drm_mode_fb_cmd2 *mode_cmd,
+                            const struct drm_mode_fb_cmd2 *mode_cmd,
                             struct drm_gem_object *obj);
 
 bool cirrus_check_framebuffer(struct cirrus_device *cdev, int width, int height,
diff --git a/drivers/gpu/drm/cirrus/cirrus_fbdev.c b/drivers/gpu/drm/cirrus/cirrus_fbdev.c
index 589103bcc06c..3b5be7272357 100644
--- a/drivers/gpu/drm/cirrus/cirrus_fbdev.c
+++ b/drivers/gpu/drm/cirrus/cirrus_fbdev.c
@@ -135,7 +135,7 @@ static struct fb_ops cirrusfb_ops = {
 };
 
 static int cirrusfb_create_object(struct cirrus_fbdev *afbdev,
-                               struct drm_mode_fb_cmd2 *mode_cmd,
+                               const struct drm_mode_fb_cmd2 *mode_cmd,
                                struct drm_gem_object **gobj_p)
 {
         struct drm_device *dev = afbdev->helper.dev;
diff --git a/drivers/gpu/drm/cirrus/cirrus_main.c b/drivers/gpu/drm/cirrus/cirrus_main.c
index 055fd86ba717..0907715e90fd 100644
--- a/drivers/gpu/drm/cirrus/cirrus_main.c
+++ b/drivers/gpu/drm/cirrus/cirrus_main.c
@@ -29,7 +29,7 @@ static const struct drm_framebuffer_funcs cirrus_fb_funcs = {
 
 int cirrus_framebuffer_init(struct drm_device *dev,
                             struct cirrus_framebuffer *gfb,
-                            struct drm_mode_fb_cmd2 *mode_cmd,
+                            const struct drm_mode_fb_cmd2 *mode_cmd,
                             struct drm_gem_object *obj)
 {
         int ret;
@@ -47,7 +47,7 @@ int cirrus_framebuffer_init(struct drm_device *dev,
 static struct drm_framebuffer *
 cirrus_user_framebuffer_create(struct drm_device *dev,
                                struct drm_file *filp,
-                               struct drm_mode_fb_cmd2 *mode_cmd)
+                               const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct cirrus_device *cdev = dev->dev_private;
         struct drm_gem_object *obj;
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 24c5434abd1c..32dd134700bd 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -45,7 +45,7 @@
 
 static struct drm_framebuffer *
 internal_framebuffer_create(struct drm_device *dev,
-                            struct drm_mode_fb_cmd2 *r,
+                            const struct drm_mode_fb_cmd2 *r,
                             struct drm_file *file_priv);
 
 /* Avoid boilerplate.  I'm tired of typing. */
@@ -3235,7 +3235,7 @@ static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
 
 static struct drm_framebuffer *
 internal_framebuffer_create(struct drm_device *dev,
-                            struct drm_mode_fb_cmd2 *r,
+                            const struct drm_mode_fb_cmd2 *r,
                             struct drm_file *file_priv)
 {
         struct drm_mode_config *config = &dev->mode_config;
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index ef534758a02c..6b4cf25fed12 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -818,7 +818,7 @@ EXPORT_SYMBOL(drm_helper_connector_dpms);
  * metadata fields.
  */
 void drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
-                                    struct drm_mode_fb_cmd2 *mode_cmd)
+                                    const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         int i;
 
diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c
index c19a62561183..b7d5b848d2f8 100644
--- a/drivers/gpu/drm/drm_fb_cma_helper.c
+++ b/drivers/gpu/drm/drm_fb_cma_helper.c
@@ -74,7 +74,7 @@ static struct drm_framebuffer_funcs drm_fb_cma_funcs = {
 };
 
 static struct drm_fb_cma *drm_fb_cma_alloc(struct drm_device *dev,
-        struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_cma_object **obj,
+        const const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_cma_object **obj,
         unsigned int num_planes)
 {
         struct drm_fb_cma *fb_cma;
@@ -107,7 +107,7 @@ static struct drm_fb_cma *drm_fb_cma_alloc(struct drm_device *dev,
  * checked before calling this function.
  */
 struct drm_framebuffer *drm_fb_cma_create(struct drm_device *dev,
-        struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd)
+        struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct drm_fb_cma *fb_cma;
         struct drm_gem_cma_object *objs[4];
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c b/drivers/gpu/drm/exynos/exynos_drm_fb.c
index fcea28bdbc42..49b9bc302e87 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fb.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fb.c
@@ -117,7 +117,7 @@ static struct drm_framebuffer_funcs exynos_drm_fb_funcs = {
 
 struct drm_framebuffer *
 exynos_drm_framebuffer_init(struct drm_device *dev,
-                            struct drm_mode_fb_cmd2 *mode_cmd,
+                            const struct drm_mode_fb_cmd2 *mode_cmd,
                             struct exynos_drm_gem **exynos_gem,
                             int count)
 {
@@ -154,7 +154,7 @@ err:
 
 static struct drm_framebuffer *
 exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
-                      struct drm_mode_fb_cmd2 *mode_cmd)
+                      const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct exynos_drm_gem *exynos_gem[MAX_FB_BUFFER];
         struct drm_gem_object *obj;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.h b/drivers/gpu/drm/exynos/exynos_drm_fb.h
index 726a2d44371f..a8a75ac87e59 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fb.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_fb.h
@@ -18,7 +18,7 @@
 
 struct drm_framebuffer *
 exynos_drm_framebuffer_init(struct drm_device *dev,
-                            struct drm_mode_fb_cmd2 *mode_cmd,
+                            const struct drm_mode_fb_cmd2 *mode_cmd,
                             struct exynos_drm_gem **exynos_gem,
                             int count);
 
diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index 2eaf1b31c7bd..dc0508dca1d4 100644
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -241,7 +241,7 @@ static struct fb_ops psbfb_unaccel_ops = {
  */
 static int psb_framebuffer_init(struct drm_device *dev,
                                         struct psb_framebuffer *fb,
-                                        struct drm_mode_fb_cmd2 *mode_cmd,
+                                        const struct drm_mode_fb_cmd2 *mode_cmd,
                                         struct gtt_range *gt)
 {
         u32 bpp, depth;
@@ -284,7 +284,7 @@ static int psb_framebuffer_init(struct drm_device *dev,
 
 static struct drm_framebuffer *psb_framebuffer_create
                         (struct drm_device *dev,
-                         struct drm_mode_fb_cmd2 *mode_cmd,
+                         const struct drm_mode_fb_cmd2 *mode_cmd,
                          struct gtt_range *gt)
 {
         struct psb_framebuffer *fb;
@@ -488,7 +488,7 @@ out_err1:
  */
 static struct drm_framebuffer *psb_user_framebuffer_create
                         (struct drm_device *dev, struct drm_file *filp,
-                         struct drm_mode_fb_cmd2 *cmd)
+                         const struct drm_mode_fb_cmd2 *cmd)
 {
         struct gtt_range *r;
         struct drm_gem_object *obj;
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 71860f8680f9..9f02a099872f 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14377,7 +14377,7 @@ static int intel_framebuffer_init(struct drm_device *dev,
 static struct drm_framebuffer *
 intel_user_framebuffer_create(struct drm_device *dev,
                               struct drm_file *filp,
-                              struct drm_mode_fb_cmd2 *user_mode_cmd)
+                              const struct drm_mode_fb_cmd2 *user_mode_cmd)
 {
         struct drm_i915_gem_object *obj;
         struct drm_mode_fb_cmd2 mode_cmd = *user_mode_cmd;
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
index 912151c36d59..205b2801d3b8 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -252,7 +252,7 @@ void mgag200_fbdev_fini(struct mga_device *mdev);
                                 /* mgag200_main.c */
 int mgag200_framebuffer_init(struct drm_device *dev,
                              struct mga_framebuffer *mfb,
-                             struct drm_mode_fb_cmd2 *mode_cmd,
+                             const struct drm_mode_fb_cmd2 *mode_cmd,
                              struct drm_gem_object *obj);
 
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_fb.c b/drivers/gpu/drm/mgag200/mgag200_fb.c
index b35b5b2db4ec..d9b04b008feb 100644
--- a/drivers/gpu/drm/mgag200/mgag200_fb.c
+++ b/drivers/gpu/drm/mgag200/mgag200_fb.c
@@ -138,7 +138,7 @@ static struct fb_ops mgag200fb_ops = {
 };
 
 static int mgag200fb_create_object(struct mga_fbdev *afbdev,
-                                   struct drm_mode_fb_cmd2 *mode_cmd,
+                                   const struct drm_mode_fb_cmd2 *mode_cmd,
                                    struct drm_gem_object **gobj_p)
 {
         struct drm_device *dev = afbdev->helper.dev;
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index b1a0f5656175..9147444d5bf2 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -29,7 +29,7 @@ static const struct drm_framebuffer_funcs mga_fb_funcs = {
 
 int mgag200_framebuffer_init(struct drm_device *dev,
                              struct mga_framebuffer *gfb,
-                             struct drm_mode_fb_cmd2 *mode_cmd,
+                             const struct drm_mode_fb_cmd2 *mode_cmd,
                              struct drm_gem_object *obj)
 {
         int ret;
@@ -47,7 +47,7 @@ int mgag200_framebuffer_init(struct drm_device *dev,
 static struct drm_framebuffer *
 mgag200_user_framebuffer_create(struct drm_device *dev,
                                 struct drm_file *filp,
-                                struct drm_mode_fb_cmd2 *mode_cmd)
+                                const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct drm_gem_object *obj;
         struct mga_framebuffer *mga_fb;
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 3be7a56b14f1..9a713b7a009d 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -240,9 +240,9 @@ uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb, int id, int plane);
 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
 struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev,
-                struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
+                const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
-                struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd);
+                struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
 
 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
 
diff --git a/drivers/gpu/drm/msm/msm_fb.c b/drivers/gpu/drm/msm/msm_fb.c
index 121713281417..a474d6cf5d9f 100644
--- a/drivers/gpu/drm/msm/msm_fb.c
+++ b/drivers/gpu/drm/msm/msm_fb.c
@@ -138,7 +138,7 @@ const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb)
 }
 
 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
-                struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd)
+                struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct drm_gem_object *bos[4] = {0};
         struct drm_framebuffer *fb;
@@ -168,7 +168,7 @@ out_unref:
 }
 
 struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev,
-                struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos)
+                const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos)
 {
         struct msm_drm_private *priv = dev->dev_private;
         struct msm_kms *kms = priv->kms;
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index db6bc6760545..ea9d3bc91266 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -246,7 +246,7 @@ static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 int
 nouveau_framebuffer_init(struct drm_device *dev,
                          struct nouveau_framebuffer *nv_fb,
-                         struct drm_mode_fb_cmd2 *mode_cmd,
+                         const struct drm_mode_fb_cmd2 *mode_cmd,
                          struct nouveau_bo *nvbo)
 {
         struct nouveau_display *disp = nouveau_display(dev);
@@ -272,7 +272,7 @@ nouveau_framebuffer_init(struct drm_device *dev,
 static struct drm_framebuffer *
 nouveau_user_framebuffer_create(struct drm_device *dev,
                                 struct drm_file *file_priv,
-                                struct drm_mode_fb_cmd2 *mode_cmd)
+                                const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct nouveau_framebuffer *nouveau_fb;
         struct drm_gem_object *gem;
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.h b/drivers/gpu/drm/nouveau/nouveau_display.h
index 856abe0f070d..5a57d8b472c4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.h
+++ b/drivers/gpu/drm/nouveau/nouveau_display.h
@@ -23,7 +23,7 @@ nouveau_framebuffer(struct drm_framebuffer *fb)
 }
 
 int nouveau_framebuffer_init(struct drm_device *, struct nouveau_framebuffer *,
-                             struct drm_mode_fb_cmd2 *, struct nouveau_bo *);
+                             const struct drm_mode_fb_cmd2 *, struct nouveau_bo *);
 
 struct nouveau_page_flip_state {
         struct list_head head;
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h
index 5c367aad8a6e..130fca70bfd7 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.h
+++ b/drivers/gpu/drm/omapdrm/omap_drv.h
@@ -172,9 +172,9 @@ void copy_timings_drm_to_omap(struct omap_video_timings *timings,
 uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats,
                 uint32_t max_formats, enum omap_color_mode supported_modes);
 struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
-                struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd);
+                struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
 struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
-                struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
+                const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
 struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p);
 int omap_framebuffer_pin(struct drm_framebuffer *fb);
 void omap_framebuffer_unpin(struct drm_framebuffer *fb);
@@ -248,7 +248,7 @@ struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder);
 
 static inline int objects_lookup(struct drm_device *dev,
                 struct drm_file *filp, uint32_t pixel_format,
-                struct drm_gem_object **bos, uint32_t *handles)
+                struct drm_gem_object **bos, const uint32_t *handles)
 {
         int i, n = drm_format_num_planes(pixel_format);
 
diff --git a/drivers/gpu/drm/omapdrm/omap_fb.c b/drivers/gpu/drm/omapdrm/omap_fb.c
index 636a1f921569..ad202dfc1a49 100644
--- a/drivers/gpu/drm/omapdrm/omap_fb.c
+++ b/drivers/gpu/drm/omapdrm/omap_fb.c
@@ -364,7 +364,7 @@ void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m)
 #endif
 
 struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
-                struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd)
+                struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct drm_gem_object *bos[4];
         struct drm_framebuffer *fb;
@@ -386,7 +386,7 @@ struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
 }
 
 struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
-                struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos)
+                const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos)
 {
         struct omap_framebuffer *omap_fb = NULL;
         struct drm_framebuffer *fb = NULL;
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 183aea1abebc..cddba079197f 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -521,7 +521,7 @@ static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 int
 qxl_framebuffer_init(struct drm_device *dev,
                      struct qxl_framebuffer *qfb,
-                     struct drm_mode_fb_cmd2 *mode_cmd,
+                     const struct drm_mode_fb_cmd2 *mode_cmd,
                      struct drm_gem_object *obj)
 {
         int ret;
@@ -1003,7 +1003,7 @@ static int qdev_output_init(struct drm_device *dev, int num_output)
 static struct drm_framebuffer *
 qxl_user_framebuffer_create(struct drm_device *dev,
                             struct drm_file *file_priv,
-                            struct drm_mode_fb_cmd2 *mode_cmd)
+                            const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct drm_gem_object *obj;
         struct qxl_framebuffer *qxl_fb;
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 01a86948eb8c..6e6b9b1519b8 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -390,7 +390,7 @@ void qxl_fbdev_set_suspend(struct qxl_device *qdev, int state);
 int
 qxl_framebuffer_init(struct drm_device *dev,
                      struct qxl_framebuffer *rfb,
-                     struct drm_mode_fb_cmd2 *mode_cmd,
+                     const struct drm_mode_fb_cmd2 *mode_cmd,
                      struct drm_gem_object *obj);
 void qxl_display_read_client_monitors_config(struct qxl_device *qdev);
 void qxl_send_monitors_config(struct qxl_device *qdev);
diff --git a/drivers/gpu/drm/qxl/qxl_fb.c b/drivers/gpu/drm/qxl/qxl_fb.c
index a97d16792bed..7136e521e6db 100644
--- a/drivers/gpu/drm/qxl/qxl_fb.c
+++ b/drivers/gpu/drm/qxl/qxl_fb.c
@@ -282,7 +282,7 @@ int qxl_get_handle_for_primary_fb(struct qxl_device *qdev,
 }
 
 static int qxlfb_create_pinned_object(struct qxl_fbdev *qfbdev,
-                                      struct drm_mode_fb_cmd2 *mode_cmd,
+                                      const struct drm_mode_fb_cmd2 *mode_cmd,
                                       struct drm_gem_object **gobj_p)
 {
         struct qxl_device *qdev = qfbdev->qdev;
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index a8d9927ed9eb..ded51fbb8fa2 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -1292,7 +1292,7 @@ static const struct drm_framebuffer_funcs radeon_fb_funcs = {
 int
 radeon_framebuffer_init(struct drm_device *dev,
                         struct radeon_framebuffer *rfb,
-                        struct drm_mode_fb_cmd2 *mode_cmd,
+                        const struct drm_mode_fb_cmd2 *mode_cmd,
                         struct drm_gem_object *obj)
 {
         int ret;
@@ -1309,7 +1309,7 @@ radeon_framebuffer_init(struct drm_device *dev,
 static struct drm_framebuffer *
 radeon_user_framebuffer_create(struct drm_device *dev,
                                struct drm_file *file_priv,
-                               struct drm_mode_fb_cmd2 *mode_cmd)
+                               const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct drm_gem_object *obj;
         struct radeon_framebuffer *radeon_fb;
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 830e171c3a9e..b8e3c277a95b 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -929,7 +929,7 @@ extern void radeon_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green
                                      u16 *blue, int regno);
 int radeon_framebuffer_init(struct drm_device *dev,
                              struct radeon_framebuffer *rfb,
-                             struct drm_mode_fb_cmd2 *mode_cmd,
+                             const struct drm_mode_fb_cmd2 *mode_cmd,
                              struct drm_gem_object *obj);
 
 int radeonfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
index ca12e8ca5552..43bce69d8560 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
@@ -136,7 +136,7 @@ int rcar_du_dumb_create(struct drm_file *file, struct drm_device *dev,
 
 static struct drm_framebuffer *
 rcar_du_fb_create(struct drm_device *dev, struct drm_file *file_priv,
-                  struct drm_mode_fb_cmd2 *mode_cmd)
+                  const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct rcar_du_device *rcdu = dev->dev_private;
         const struct rcar_du_format_info *format;
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c
index 002645bb5bbf..b8ac5911c102 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c
@@ -72,7 +72,7 @@ static struct drm_framebuffer_funcs rockchip_drm_fb_funcs = {
 };
 
 static struct rockchip_drm_fb *
-rockchip_fb_alloc(struct drm_device *dev, struct drm_mode_fb_cmd2 *mode_cmd,
+rockchip_fb_alloc(struct drm_device *dev, const struct drm_mode_fb_cmd2 *mode_cmd,
                   struct drm_gem_object **obj, unsigned int num_planes)
 {
         struct rockchip_drm_fb *rockchip_fb;
@@ -102,7 +102,7 @@ rockchip_fb_alloc(struct drm_device *dev, struct drm_mode_fb_cmd2 *mode_cmd,
 
 static struct drm_framebuffer *
 rockchip_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
-                        struct drm_mode_fb_cmd2 *mode_cmd)
+                        const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct rockchip_drm_fb *rockchip_fb;
         struct drm_gem_object *objs[ROCKCHIP_MAX_FB_BUFFER];
@@ -173,7 +173,7 @@ static const struct drm_mode_config_funcs rockchip_drm_mode_config_funcs = {
 
 struct drm_framebuffer *
 rockchip_drm_framebuffer_init(struct drm_device *dev,
-                              struct drm_mode_fb_cmd2 *mode_cmd,
+                              const struct drm_mode_fb_cmd2 *mode_cmd,
                               struct drm_gem_object *obj)
 {
         struct rockchip_drm_fb *rockchip_fb;
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.h b/drivers/gpu/drm/rockchip/rockchip_drm_fb.h
index 09574d48226f..2fe47f1ee98f 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_fb.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.h
@@ -17,7 +17,7 @@
 
 struct drm_framebuffer *
 rockchip_drm_framebuffer_init(struct drm_device *dev,
-                              struct drm_mode_fb_cmd2 *mode_cmd,
+                              const struct drm_mode_fb_cmd2 *mode_cmd,
                               struct drm_gem_object *obj);
 void rockchip_drm_framebuffer_fini(struct drm_framebuffer *fb);
 
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_kms.c b/drivers/gpu/drm/shmobile/shmob_drm_kms.c
index aaf98ace4a90..388a0fc13564 100644
--- a/drivers/gpu/drm/shmobile/shmob_drm_kms.c
+++ b/drivers/gpu/drm/shmobile/shmob_drm_kms.c
@@ -104,7 +104,7 @@ const struct shmob_drm_format_info *shmob_drm_format_info(u32 fourcc)
 
 static struct drm_framebuffer *
 shmob_drm_fb_create(struct drm_device *dev, struct drm_file *file_priv,
-                    struct drm_mode_fb_cmd2 *mode_cmd)
+                    const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         const struct shmob_drm_format_info *format;
 
diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h
index 942cad9b3ecb..d88a2d18c1a4 100644
--- a/drivers/gpu/drm/tegra/drm.h
+++ b/drivers/gpu/drm/tegra/drm.h
@@ -268,7 +268,7 @@ int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
                         struct tegra_bo_tiling *tiling);
 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
                                         struct drm_file *file,
-                                        struct drm_mode_fb_cmd2 *cmd);
+                                        const struct drm_mode_fb_cmd2 *cmd);
 int tegra_drm_fb_prepare(struct drm_device *drm);
 void tegra_drm_fb_free(struct drm_device *drm);
 int tegra_drm_fb_init(struct drm_device *drm);
diff --git a/drivers/gpu/drm/tegra/fb.c b/drivers/gpu/drm/tegra/fb.c
index bec07d934b3b..ede9e94f3312 100644
--- a/drivers/gpu/drm/tegra/fb.c
+++ b/drivers/gpu/drm/tegra/fb.c
@@ -92,7 +92,7 @@ static struct drm_framebuffer_funcs tegra_fb_funcs = {
 };
 
 static struct tegra_fb *tegra_fb_alloc(struct drm_device *drm,
-                                       struct drm_mode_fb_cmd2 *mode_cmd,
+                                       const struct drm_mode_fb_cmd2 *mode_cmd,
                                        struct tegra_bo **planes,
                                        unsigned int num_planes)
 {
@@ -131,7 +131,7 @@ static struct tegra_fb *tegra_fb_alloc(struct drm_device *drm,
 
 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
                                         struct drm_file *file,
-                                        struct drm_mode_fb_cmd2 *cmd)
+                                        const struct drm_mode_fb_cmd2 *cmd)
 {
         unsigned int hsub, vsub, i;
         struct tegra_bo *planes[4];
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 876cad58b1f9..4ddb21e7f52f 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -46,7 +46,7 @@ void tilcdc_module_cleanup(struct tilcdc_module *mod)
 static struct of_device_id tilcdc_of_match[];
 
 static struct drm_framebuffer *tilcdc_fb_create(struct drm_device *dev,
-                struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd)
+                struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         return drm_fb_cma_create(dev, file_priv, mode_cmd);
 }
diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h
index 80adbac82bde..4a064efcea58 100644
--- a/drivers/gpu/drm/udl/udl_drv.h
+++ b/drivers/gpu/drm/udl/udl_drv.h
@@ -108,7 +108,7 @@ void udl_fbdev_unplug(struct drm_device *dev);
 struct drm_framebuffer *
 udl_fb_user_fb_create(struct drm_device *dev,
                       struct drm_file *file,
-                      struct drm_mode_fb_cmd2 *mode_cmd);
+                      const struct drm_mode_fb_cmd2 *mode_cmd);
 
 int udl_render_hline(struct drm_device *dev, int bpp, struct urb **urb_ptr,
                      const char *front, char **urb_buf_ptr,
diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
index b9df46efb622..200419d4d43c 100644
--- a/drivers/gpu/drm/udl/udl_fb.c
+++ b/drivers/gpu/drm/udl/udl_fb.c
@@ -455,7 +455,7 @@ static const struct drm_framebuffer_funcs udlfb_funcs = {
 static int
 udl_framebuffer_init(struct drm_device *dev,
                      struct udl_framebuffer *ufb,
-                     struct drm_mode_fb_cmd2 *mode_cmd,
+                     const struct drm_mode_fb_cmd2 *mode_cmd,
                      struct udl_gem_object *obj)
 {
         int ret;
@@ -623,7 +623,7 @@ void udl_fbdev_unplug(struct drm_device *dev)
 struct drm_framebuffer *
 udl_fb_user_fb_create(struct drm_device *dev,
                    struct drm_file *file,
-                   struct drm_mode_fb_cmd2 *mode_cmd)
+                   const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct drm_gem_object *obj;
         struct udl_framebuffer *ufb;
diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/virtio/virtgpu_display.c
index f545913a56c7..306a7df7d013 100644
--- a/drivers/gpu/drm/virtio/virtgpu_display.c
+++ b/drivers/gpu/drm/virtio/virtgpu_display.c
@@ -215,7 +215,7 @@ static const struct drm_framebuffer_funcs virtio_gpu_fb_funcs = {
 int
 virtio_gpu_framebuffer_init(struct drm_device *dev,
                             struct virtio_gpu_framebuffer *vgfb,
-                            struct drm_mode_fb_cmd2 *mode_cmd,
+                            const struct drm_mode_fb_cmd2 *mode_cmd,
                             struct drm_gem_object *obj)
 {
         int ret;
@@ -465,7 +465,7 @@ static int vgdev_output_init(struct virtio_gpu_device *vgdev, int index)
 static struct drm_framebuffer *
 virtio_gpu_user_framebuffer_create(struct drm_device *dev,
                                    struct drm_file *file_priv,
-                                   struct drm_mode_fb_cmd2 *mode_cmd)
+                                   const struct drm_mode_fb_cmd2 *mode_cmd)
 {
         struct drm_gem_object *obj = NULL;
         struct virtio_gpu_framebuffer *virtio_gpu_fb;
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index 79f0abe69b64..8f486f4c7023 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -328,7 +328,7 @@ void virtio_gpu_dequeue_fence_func(struct work_struct *work);
 /* virtio_gpu_display.c */
 int virtio_gpu_framebuffer_init(struct drm_device *dev,
                                 struct virtio_gpu_framebuffer *vgfb,
-                                struct drm_mode_fb_cmd2 *mode_cmd,
+                                const struct drm_mode_fb_cmd2 *mode_cmd,
                                 struct drm_gem_object *obj);
 int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
 void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 9fcd7f82995c..e38db35132ed 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -930,7 +930,7 @@ vmw_kms_new_framebuffer(struct vmw_private *dev_priv,
 
 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
                                                  struct drm_file *file_priv,
-                                                 struct drm_mode_fb_cmd2 *mode_cmd2)
+                                                 const struct drm_mode_fb_cmd2 *mode_cmd2)
 {
         struct vmw_private *dev_priv = vmw_priv(dev);
         struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index f47cefa37ef3..173535a35d65 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -996,7 +996,7 @@ struct drm_mode_set {
 struct drm_mode_config_funcs {
         struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
                                              struct drm_file *file_priv,
-                                             struct drm_mode_fb_cmd2 *mode_cmd);
+                                             const struct drm_mode_fb_cmd2 *mode_cmd);
         void (*output_poll_changed)(struct drm_device *dev);
 
         int (*atomic_check)(struct drm_device *dev,
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index 3febb4b9fce9..e22ab29d2d00 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -197,7 +197,7 @@ extern int drm_helper_connector_dpms(struct drm_connector *connector, int mode);
 extern void drm_helper_move_panel_connectors_to_head(struct drm_device *);
 
 extern void drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
-                                           struct drm_mode_fb_cmd2 *mode_cmd);
+                                           const struct drm_mode_fb_cmd2 *mode_cmd);
 
 static inline void drm_crtc_helper_add(struct drm_crtc *crtc,
                                        const struct drm_crtc_helper_funcs *funcs)
diff --git a/include/drm/drm_fb_cma_helper.h b/include/drm/drm_fb_cma_helper.h
index c54cf3d4a03f..be62bd321e75 100644
--- a/include/drm/drm_fb_cma_helper.h
+++ b/include/drm/drm_fb_cma_helper.h
@@ -18,7 +18,7 @@ void drm_fbdev_cma_restore_mode(struct drm_fbdev_cma *fbdev_cma);
 void drm_fbdev_cma_hotplug_event(struct drm_fbdev_cma *fbdev_cma);
 
 struct drm_framebuffer *drm_fb_cma_create(struct drm_device *dev,
-        struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd);
+        struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd);
 
 struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb,
         unsigned int plane);