return 0;
 }
 
-static struct fb_ops amdgpufb_ops = {
+static const struct fb_ops amdgpufb_ops = {
        .owner = THIS_MODULE,
        DRM_FB_HELPER_DEFAULT_OPS,
        .fb_open = amdgpufb_open,
 
 #include "armada_fb.h"
 #include "armada_gem.h"
 
-static /*const*/ struct fb_ops armada_fb_ops = {
+static const struct fb_ops armada_fb_ops = {
        .owner          = THIS_MODULE,
        DRM_FB_HELPER_DEFAULT_OPS,
        .fb_fillrect    = drm_fb_helper_cfb_fillrect,
 
                return -ENODEV;
 }
 
-static struct fb_ops drm_fbdev_fb_ops = {
+static const struct fb_ops drm_fbdev_fb_ops = {
        .owner          = THIS_MODULE,
        DRM_FB_HELPER_DEFAULT_OPS,
        .fb_open        = drm_fbdev_fb_open,
 
        return 0;
 }
 
-static struct fb_ops exynos_drm_fb_ops = {
+static const struct fb_ops exynos_drm_fb_ops = {
        .owner          = THIS_MODULE,
        DRM_FB_HELPER_DEFAULT_OPS,
        .fb_mmap        = exynos_drm_fb_mmap,
 
        return ret;
 }
 
-static struct fb_ops hibmc_drm_fb_ops = {
+static const struct fb_ops hibmc_drm_fb_ops = {
        .owner = THIS_MODULE,
        .fb_check_var = drm_fb_helper_check_var,
        .fb_set_par = drm_fb_helper_set_par,
 
        return ret;
 }
 
-static struct fb_ops intelfb_ops = {
+static const struct fb_ops intelfb_ops = {
        .owner = THIS_MODULE,
        DRM_FB_HELPER_DEFAULT_OPS,
        .fb_set_par = intel_fbdev_set_par,
 
        struct drm_framebuffer *fb;
 };
 
-static struct fb_ops msm_fb_ops = {
+static const struct fb_ops msm_fb_ops = {
        .owner = THIS_MODULE,
        DRM_FB_HELPER_DEFAULT_OPS,
 
 
        return 0;
 }
 
-static struct fb_ops nouveau_fbcon_ops = {
+static const struct fb_ops nouveau_fbcon_ops = {
        .owner = THIS_MODULE,
        DRM_FB_HELPER_DEFAULT_OPS,
        .fb_open = nouveau_fbcon_open,
        .fb_sync = nouveau_fbcon_sync,
 };
 
-static struct fb_ops nouveau_fbcon_sw_ops = {
+static const struct fb_ops nouveau_fbcon_sw_ops = {
        .owner = THIS_MODULE,
        DRM_FB_HELPER_DEFAULT_OPS,
        .fb_open = nouveau_fbcon_open,
 
        return drm_fb_helper_pan_display(var, fbi);
 }
 
-static struct fb_ops omap_fb_ops = {
+static const struct fb_ops omap_fb_ops = {
        .owner = THIS_MODULE,
 
        .fb_check_var   = drm_fb_helper_check_var,
 
        return 0;
 }
 
-static struct fb_ops radeonfb_ops = {
+static const struct fb_ops radeonfb_ops = {
        .owner = THIS_MODULE,
        DRM_FB_HELPER_DEFAULT_OPS,
        .fb_open = radeonfb_open,
 
        return rockchip_gem_mmap_buf(private->fbdev_bo, vma);
 }
 
-static struct fb_ops rockchip_drm_fbdev_ops = {
+static const struct fb_ops rockchip_drm_fbdev_ops = {
        .owner          = THIS_MODULE,
        DRM_FB_HELPER_DEFAULT_OPS,
        .fb_mmap        = rockchip_fbdev_mmap,
 
        return __tegra_gem_mmap(&bo->gem, vma);
 }
 
-static struct fb_ops tegra_fb_ops = {
+static const struct fb_ops tegra_fb_ops = {
        .owner = THIS_MODULE,
        DRM_FB_HELPER_DEFAULT_OPS,
        .fb_fillrect = drm_fb_helper_sys_fillrect,
 
 }
 
 
-static struct fb_ops vmw_fb_ops = {
+static const struct fb_ops vmw_fb_ops = {
        .owner = THIS_MODULE,
        .fb_check_var = vmw_fb_check_var,
        .fb_set_par = vmw_fb_set_par,