tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: dd0d718152e4c65b173070d48ea9dfc06894c3e5 commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces date: 5 days ago config: powerpc-randconfig-s031-20200623 (attached as .config) compiler: powerpc-linux-gcc (GCC) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-dirty git checkout 670d0a4b10704667765f7d18f7592993d02783aa # save the attached .config to linux build tree make W=1 C=1 ARCH=powerpc CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' 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/nouveau/nvkm/subdev/bios/shadowof.c:63:25: sparse: got void const * -- drivers/gpu/drm/mgag200/mgag200_cursor.c:32:44: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __iomem * @@ got void * @@ drivers/gpu/drm/mgag200/mgag200_cursor.c:32:44: sparse: expected void [noderef] __iomem * drivers/gpu/drm/mgag200/mgag200_cursor.c:32:44: sparse: got void * drivers/gpu/drm/mgag200/mgag200_cursor.c:85:52: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __iomem * @@ got void * @@ drivers/gpu/drm/mgag200/mgag200_cursor.c:85:52: sparse: expected void [noderef] __iomem * drivers/gpu/drm/mgag200/mgag200_cursor.c:85:52: sparse: got void * drivers/gpu/drm/mgag200/mgag200_cursor.c:103:33: sparse: got void * -- arch/powerpc/platforms/powermac/setup.c:74:5: sparse: sparse: symbol 'ppc_override_l2cr' was not declared. Should it be static? arch/powerpc/platforms/powermac/setup.c:75:5: sparse: sparse: symbol 'ppc_override_l2cr_value' was not declared. Should it be static? arch/powerpc/platforms/powermac/setup.c:76:5: sparse: sparse: symbol 'has_l2cache' was not declared. Should it be static? -- drivers/char/agp/uninorth-agp.c:188:31: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] @@ got restricted __le32 [usertype] @@ drivers/char/agp/uninorth-agp.c:188:31: sparse: expected unsigned int [usertype] drivers/char/agp/uninorth-agp.c:188:31: sparse: got restricted __le32 [usertype] drivers/char/agp/uninorth-agp.c:217:15: sparse: sparse: cast removes address space '__iomem' of expression drivers/char/agp/uninorth-agp.c:424:28: sparse: got void * drivers/char/agp/uninorth-agp.c:434:31: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int static [assigned] [toplevel] [usertype] scratch_value @@ got restricted __le32 [usertype] @@ drivers/char/agp/uninorth-agp.c:434:31: sparse: expected unsigned int static [assigned] [toplevel] [usertype] scratch_value drivers/char/agp/uninorth-agp.c:434:31: sparse: got restricted __le32 [usertype] drivers/char/agp/uninorth-agp.c:463:22: sparse: expected void const *addr drivers/char/agp/uninorth-agp.c:510:32: sparse: sparse: symbol 'uninorth_agp_driver' was not declared. Should it be static? drivers/char/agp/uninorth-agp.c:538:32: sparse: sparse: symbol 'u3_agp_driver' was not declared. Should it be static? drivers/char/agp/uninorth-agp.c:437:35: sparse: sparse: dereference of noderef expression -- drivers/video/fbdev/platinumfb.h:346:19: sparse: sparse: symbol 'vmode_attrs' was not declared. Should it be static? drivers/video/fbdev/platinumfb.c:588:17: sparse: expected unsigned char volatile [usertype] *fbuffer -- drivers/video/fbdev/chipsfb.c:334:9: sparse: expected void *s vim +63 drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c 25d295882a1adf drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c Ilia Mirkin 2015-10-01 51 ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 52 static void * d390b48027f886 drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c Ben Skeggs 2015-01-14 53 of_init(struct nvkm_bios *bios, const char *name) ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 54 { 25d295882a1adf drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c Ilia Mirkin 2015-10-01 55 struct nvkm_device *device = bios->subdev.device; 25d295882a1adf drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c Ilia Mirkin 2015-10-01 56 struct pci_dev *pdev = device->func->pci(device)->pdev; ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 57 struct device_node *dn; ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 58 struct priv *priv; ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 59 if (!(dn = pci_device_to_OF_node(pdev))) ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 60 return ERR_PTR(-ENODEV); ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 61 if (!(priv = kzalloc(sizeof(*priv), GFP_KERNEL))) ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 62 return ERR_PTR(-ENOMEM); ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 @63 if ((priv->data = of_get_property(dn, "NVDA,BMP", &priv->size))) ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 64 return priv; ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 65 kfree(priv); ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 66 return ERR_PTR(-EINVAL); ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 67 } ad4a362635353f drivers/gpu/drm/nouveau/core/subdev/bios/shadowof.c Ben Skeggs 2014-09-18 68 :::::: The code at line 63 was first introduced by commit :::::: ad4a362635353f7ceb66f4038269770fee1025fa drm/nouveau/bios: split out shadow methods :::::: TO: Ben Skeggs <bskeggs(a)redhat.com&gt; :::::: CC: Ben Skeggs <bskeggs(a)redhat.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org