Hi Chris, [auto build test WARNING on drm-intel/for-linux-next] [cannot apply to v4.4-rc1 next-20151120] url: https://github.com/0day-ci/linux/commits/Chris-Wilson/drm-i915-Pin-the-ifbdev-for-the-info-system_base-GGTT-mmapping/20151121-003300 base: git://anongit.freedesktop.org/drm-intel for-linux-next reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/i915/intel_fbdev.c:225:58: sparse: incorrect type in argument 2 (different base types) drivers/gpu/drm/i915/intel_fbdev.c:225:58: expected struct drm_framebuffer *fb drivers/gpu/drm/i915/intel_fbdev.c:225:58: got struct drm_framebuffer base drivers/gpu/drm/i915/intel_fbdev.c: In function 'intelfb_create': drivers/gpu/drm/i915/intel_fbdev.c:225:41: error: incompatible type for argument 2 of 'intel_pin_and_fence_fb_obj' ret = intel_pin_and_fence_fb_obj(NULL, ifbdev->fb->base, NULL); ^ In file included from drivers/gpu/drm/i915/intel_fbdev.c:44:0: drivers/gpu/drm/i915/intel_drv.h:1098:5: note: expected 'struct drm_framebuffer *' but argument is of type 'struct drm_framebuffer' int intel_pin_and_fence_fb_obj(struct drm_plane *plane, ^ vim +225 drivers/gpu/drm/i915/intel_fbdev.c 209 } else { 210 DRM_DEBUG_KMS("re-using BIOS fb\n"); 211 prealloc = true; 212 sizes->fb_width = intel_fb->base.width; 213 sizes->fb_height = intel_fb->base.height; 214 } 215 216 obj = intel_fb->obj; 217 size = obj->base.size; 218 219 mutex_lock(&dev->struct_mutex); 220 221 /* Pin the GGTT vma for our access via info->screen_base. 222 * This also validates that any existing fb inherited from the 223 * BIOS is suitable for own access. 224 */ > 225 ret = intel_pin_and_fence_fb_obj(NULL, ifbdev->fb->base, NULL); 226 if (ret) 227 goto out_unlock; 228 229 info = drm_fb_helper_alloc_fbi(helper); 230 if (IS_ERR(info)) { 231 DRM_ERROR("Failed to allocate fb_info\n"); 232 ret = PTR_ERR(info); 233 goto out_unpin; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html