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>

1 files changed, 2 insertions, 2 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;