Re: [PATCH drm-next v4 13/14] drm/nouveau: implement new VM_BIND uAPI

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Hi Danilo,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 33a86170888b7e4aa0cea94ebb9c67180139cea9]

url:    https://github.com/intel-lab-lkp/linux/commits/Danilo-Krummrich/drm-execution-context-for-GEM-buffers-v4/20230607-063442
base:   33a86170888b7e4aa0cea94ebb9c67180139cea9
patch link:    https://lore.kernel.org/r/20230606223130.6132-14-dakr%40redhat.com
patch subject: [PATCH drm-next v4 13/14] drm/nouveau: implement new VM_BIND uAPI
config: alpha-randconfig-s041-20230608 (https://download.01.org/0day-ci/archive/20230608/202306082035.J4ZJW2HE-lkp@xxxxxxxxx/config)
compiler: alpha-linux-gcc (GCC) 12.3.0
reproduce:
        mkdir -p ~/bin
        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: v0.6.4-39-gce1a6720-dirty
        # https://github.com/intel-lab-lkp/linux/commit/28d9f3973f9ed165312943fb05304fad878abb33
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Danilo-Krummrich/drm-execution-context-for-GEM-buffers-v4/20230607-063442
        git checkout 28d9f3973f9ed165312943fb05304fad878abb33
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=alpha olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=alpha SHELL=/bin/bash drivers/gpu/drm/

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306082035.J4ZJW2HE-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/nouveau/nouveau_drm.c:1194:9: sparse: sparse: incorrect type in initializer (incompatible argument 2 (different address spaces)) @@     expected int ( [usertype] *func )( ... ) @@     got int ( * )( ... ) @@
   drivers/gpu/drm/nouveau/nouveau_drm.c:1194:9: sparse:     expected int ( [usertype] *func )( ... )
   drivers/gpu/drm/nouveau/nouveau_drm.c:1194:9: sparse:     got int ( * )( ... )
   drivers/gpu/drm/nouveau/nouveau_drm.c:1195:9: sparse: sparse: incorrect type in initializer (incompatible argument 2 (different address spaces)) @@     expected int ( [usertype] *func )( ... ) @@     got int ( * )( ... ) @@
   drivers/gpu/drm/nouveau/nouveau_drm.c:1195:9: sparse:     expected int ( [usertype] *func )( ... )
   drivers/gpu/drm/nouveau/nouveau_drm.c:1195:9: sparse:     got int ( * )( ... )
   drivers/gpu/drm/nouveau/nouveau_drm.c:1196:9: sparse: sparse: incorrect type in initializer (incompatible argument 2 (different address spaces)) @@     expected int ( [usertype] *func )( ... ) @@     got int ( * )( ... ) @@
   drivers/gpu/drm/nouveau/nouveau_drm.c:1196:9: sparse:     expected int ( [usertype] *func )( ... )
   drivers/gpu/drm/nouveau/nouveau_drm.c:1196:9: sparse:     got int ( * )( ... )
--
>> drivers/gpu/drm/nouveau/nouveau_exec.c:305:19: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_exec.c:306:19: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_exec.c:307:20: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_exec.c:308:20: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_exec.c:309:21: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_exec.c:310:21: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_exec.c:378:43: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_exec.c:393:13: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_exec.c:396:13: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_exec.c:397:17: sparse: sparse: dereference of noderef expression
--
   drivers/gpu/drm/nouveau/nouveau_uvmm.c:1637:1: sparse: sparse: symbol 'nouveau_uvmm_ioctl_vm_init' redeclared with different type (incompatible argument 2 (different address spaces)):
>> drivers/gpu/drm/nouveau/nouveau_uvmm.c:1637:1: sparse:    int extern [addressable] [signed] [toplevel] nouveau_uvmm_ioctl_vm_init( ... )
   drivers/gpu/drm/nouveau/nouveau_uvmm.c: note: in included file (through drivers/gpu/drm/nouveau/nouveau_drv.h):
   drivers/gpu/drm/nouveau/nouveau_uvmm.h:91:5: sparse: note: previously declared as:
>> drivers/gpu/drm/nouveau/nouveau_uvmm.h:91:5: sparse:    int extern [addressable] [signed] [toplevel] nouveau_uvmm_ioctl_vm_init( ... )
   drivers/gpu/drm/nouveau/nouveau_uvmm.c:342:17: sparse: sparse: context imbalance in '__nouveau_uvma_region_insert' - unexpected unlock
>> drivers/gpu/drm/nouveau/nouveau_uvmm.c:1674:19: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_uvmm.c:1675:19: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_uvmm.c:1676:20: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_uvmm.c:1677:20: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_uvmm.c:1678:19: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_uvmm.c:1679:19: sparse: sparse: dereference of noderef expression
   drivers/gpu/drm/nouveau/nouveau_uvmm.c:1682:23: sparse: sparse: dereference of noderef expression

vim +1194 drivers/gpu/drm/nouveau/nouveau_drm.c

  1177	
  1178	static const struct drm_ioctl_desc
  1179	nouveau_ioctls[] = {
  1180		DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_RENDER_ALLOW),
  1181		DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
  1182		DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_RENDER_ALLOW),
  1183		DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_RENDER_ALLOW),
  1184		DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_RENDER_ALLOW),
  1185		DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_RENDER_ALLOW),
  1186		DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_RENDER_ALLOW),
  1187		DRM_IOCTL_DEF_DRV(NOUVEAU_SVM_INIT, nouveau_svmm_init, DRM_RENDER_ALLOW),
  1188		DRM_IOCTL_DEF_DRV(NOUVEAU_SVM_BIND, nouveau_svmm_bind, DRM_RENDER_ALLOW),
  1189		DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_RENDER_ALLOW),
  1190		DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_RENDER_ALLOW),
  1191		DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_RENDER_ALLOW),
  1192		DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_RENDER_ALLOW),
  1193		DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_RENDER_ALLOW),
> 1194		DRM_IOCTL_DEF_DRV(NOUVEAU_VM_INIT, nouveau_uvmm_ioctl_vm_init, DRM_RENDER_ALLOW),
  1195		DRM_IOCTL_DEF_DRV(NOUVEAU_VM_BIND, nouveau_uvmm_ioctl_vm_bind, DRM_RENDER_ALLOW),
  1196		DRM_IOCTL_DEF_DRV(NOUVEAU_EXEC, nouveau_exec_ioctl_exec, DRM_RENDER_ALLOW),
  1197	};
  1198	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki



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