[kbuild-all] drivers/gpu/drm/armada/armada_fbdev.c:85:27: sparse: got void Documentation Kbuild Kconfig Makefile certs drivers fs include samples scripts sound tools ptr

Hi Stephen, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 06a81c1c7db9bd5de0bd38cd5acc44bb22b99150 commit: bbd7ffdbef6888459f301c5889f3b14ada38b913 clk: Allow the common clk framework to be selectable date: 3 months ago config: arm-randconfig-s031-20200809 (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.2-118-ge1578773-dirty git checkout bbd7ffdbef6888459f301c5889f3b14ada38b913 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/gpu/drm/armada/armada_fbdev.c:85:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected char [noderef] <asn:2> *screen_base @@ got void *[assigned] ptr @@ drivers/gpu/drm/armada/armada_fbdev.c:85:27: sparse: expected char [noderef] <asn:2> *screen_base -- drivers/gpu/drm/armada/armada_gem.c:61:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] <asn:2> *iomem_cookie @@ got void *addr @@ drivers/gpu/drm/armada/armada_gem.c:61:37: sparse: expected void volatile [noderef] <asn:2> *iomem_cookie drivers/gpu/drm/armada/armada_gem.c:183:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *addr @@ got void [noderef] <asn:2> * @@ drivers/gpu/drm/armada/armada_gem.c:183:28: sparse: got void [noderef] <asn:2> * -- vim +85 drivers/gpu/drm/armada/armada_fbdev.c 96f60e37dc6609 Russell King 2012-08-15 26 3382a6b999415d Russell King 2018-07-30 27 static int armada_fbdev_create(struct drm_fb_helper *fbh, 96f60e37dc6609 Russell King 2012-08-15 28 struct drm_fb_helper_surface_size *sizes) 96f60e37dc6609 Russell King 2012-08-15 29 { 96f60e37dc6609 Russell King 2012-08-15 30 struct drm_device *dev = fbh->dev; 96f60e37dc6609 Russell King 2012-08-15 31 struct drm_mode_fb_cmd2 mode; 96f60e37dc6609 Russell King 2012-08-15 32 struct armada_framebuffer *dfb; 96f60e37dc6609 Russell King 2012-08-15 33 struct armada_gem_object *obj; 96f60e37dc6609 Russell King 2012-08-15 34 struct fb_info *info; 96f60e37dc6609 Russell King 2012-08-15 35 int size, ret; 96f60e37dc6609 Russell King 2012-08-15 36 void *ptr; 96f60e37dc6609 Russell King 2012-08-15 37 96f60e37dc6609 Russell King 2012-08-15 38 memset(&mode, 0, sizeof(mode)); 96f60e37dc6609 Russell King 2012-08-15 39 mode.width = sizes->surface_width; 96f60e37dc6609 Russell King 2012-08-15 40 mode.height = sizes->surface_height; 96f60e37dc6609 Russell King 2012-08-15 41 mode.pitches[0] = armada_pitch(mode.width, sizes->surface_bpp); 96f60e37dc6609 Russell King 2012-08-15 42 mode.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, 96f60e37dc6609 Russell King 2012-08-15 43 sizes->surface_depth); 96f60e37dc6609 Russell King 2012-08-15 44 96f60e37dc6609 Russell King 2012-08-15 45 size = mode.pitches[0] * mode.height; 96f60e37dc6609 Russell King 2012-08-15 46 obj = armada_gem_alloc_private_object(dev, size); 96f60e37dc6609 Russell King 2012-08-15 47 if (!obj) { 96f60e37dc6609 Russell King 2012-08-15 48 DRM_ERROR("failed to allocate fb memory\n"); 96f60e37dc6609 Russell King 2012-08-15 49 return -ENOMEM; 96f60e37dc6609 Russell King 2012-08-15 50 } 96f60e37dc6609 Russell King 2012-08-15 51 96f60e37dc6609 Russell King 2012-08-15 52 ret = armada_gem_linear_back(dev, obj); 96f60e37dc6609 Russell King 2012-08-15 53 if (ret) { 4c3cf375bc4042 Haneen Mohammed 2017-09-20 54 drm_gem_object_put_unlocked(&obj->obj); 96f60e37dc6609 Russell King 2012-08-15 55 return ret; 96f60e37dc6609 Russell King 2012-08-15 56 } 96f60e37dc6609 Russell King 2012-08-15 57 96f60e37dc6609 Russell King 2012-08-15 58 ptr = armada_gem_map_object(dev, obj); 96f60e37dc6609 Russell King 2012-08-15 59 if (!ptr) { 4c3cf375bc4042 Haneen Mohammed 2017-09-20 60 drm_gem_object_put_unlocked(&obj->obj); 96f60e37dc6609 Russell King 2012-08-15 61 return -ENOMEM; 96f60e37dc6609 Russell King 2012-08-15 62 } 96f60e37dc6609 Russell King 2012-08-15 63 96f60e37dc6609 Russell King 2012-08-15 64 dfb = armada_framebuffer_create(dev, &mode, obj); 96f60e37dc6609 Russell King 2012-08-15 65 96f60e37dc6609 Russell King 2012-08-15 66 /* 96f60e37dc6609 Russell King 2012-08-15 67 * A reference is now held by the framebuffer object if 96f60e37dc6609 Russell King 2012-08-15 68 * successful, otherwise this drops the ref for the error path. 96f60e37dc6609 Russell King 2012-08-15 69 */ 4c3cf375bc4042 Haneen Mohammed 2017-09-20 70 drm_gem_object_put_unlocked(&obj->obj); 96f60e37dc6609 Russell King 2012-08-15 71 96f60e37dc6609 Russell King 2012-08-15 72 if (IS_ERR(dfb)) 96f60e37dc6609 Russell King 2012-08-15 73 return PTR_ERR(dfb); 96f60e37dc6609 Russell King 2012-08-15 74 e8b70e4dd7b5da Archit Taneja 2015-07-22 75 info = drm_fb_helper_alloc_fbi(fbh); e8b70e4dd7b5da Archit Taneja 2015-07-22 76 if (IS_ERR(info)) { e8b70e4dd7b5da Archit Taneja 2015-07-22 77 ret = PTR_ERR(info); 96f60e37dc6609 Russell King 2012-08-15 78 goto err_fballoc; 96f60e37dc6609 Russell King 2012-08-15 79 } 96f60e37dc6609 Russell King 2012-08-15 80 96f60e37dc6609 Russell King 2012-08-15 81 info->fbops = &armada_fb_ops; 96f60e37dc6609 Russell King 2012-08-15 82 info->fix.smem_start = obj->phys_addr; 96f60e37dc6609 Russell King 2012-08-15 83 info->fix.smem_len = obj->obj.size; 96f60e37dc6609 Russell King 2012-08-15 84 info->screen_size = obj->obj.size; 96f60e37dc6609 Russell King 2012-08-15 @85 info->screen_base = ptr; 96f60e37dc6609 Russell King 2012-08-15 86 fbh->fb = &dfb->fb; e8b70e4dd7b5da Archit Taneja 2015-07-22 87 f21b6e47eb1dd0 Daniel Vetter 2019-03-26 88 drm_fb_helper_fill_info(info, fbh, sizes); 96f60e37dc6609 Russell King 2012-08-15 89 7513e09596374b Russell King 2013-11-27 90 DRM_DEBUG_KMS("allocated %dx%d %dbpp fb: 0x%08llx\n", 272725c7db4da1 Ville Syrjälä 2016-12-14 91 dfb->fb.width, dfb->fb.height, dfb->fb.format->cpp[0] * 8, 7513e09596374b Russell King 2013-11-27 92 (unsigned long long)obj->phys_addr); 96f60e37dc6609 Russell King 2012-08-15 93 96f60e37dc6609 Russell King 2012-08-15 94 return 0; 96f60e37dc6609 Russell King 2012-08-15 95 96f60e37dc6609 Russell King 2012-08-15 96 err_fballoc: 96f60e37dc6609 Russell King 2012-08-15 97 dfb->fb.funcs->destroy(&dfb->fb); 96f60e37dc6609 Russell King 2012-08-15 98 return ret; 96f60e37dc6609 Russell King 2012-08-15 99 } 96f60e37dc6609 Russell King 2012-08-15 100 :::::: The code at line 85 was first introduced by commit :::::: 96f60e37dc66091bde8d5de136ff6fda09f2d799 DRM: Armada: Add Armada DRM driver :::::: TO: Russell King <rmk+kernel(a)arm.linux.org.uk&gt; :::::: CC: Russell King <rmk+kernel(a)arm.linux.org.uk&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org