tree: git://people.freedesktop.org/~agd5f/linux.git drm-next head: fadef51a438279ca660dbce31c26e787d6680149 commit: 32cb59f3136248c40062f6fe3edfba13c516b30c [41/491] drm/amdkfd: Track SDMA utilization per process config: x86_64-randconfig-s021-20200623 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-dirty git checkout 32cb59f3136248c40062f6fe3edfba13c516b30c # save the attached .config to linux build tree make W=1 C=1 ARCH=x86_64 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/amd/amdgpu/../amdkfd/kfd_device_queue_manager.c:140:6: sparse: sparse: symbol 'increment_queue_count' was not declared. Should it be static? drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_device_queue_manager.c:148:6: sparse: sparse: symbol 'decrement_queue_count' was not declared. Should it be static? drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_device_queue_manager.c:172:15: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:1> * @@ got unsigned long long [usertype] * @@ drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_device_queue_manager.c:172:15: sparse: expected void const volatile [noderef] <asn:1> * vim +172 drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_device_queue_manager.c 155 156 int read_sdma_queue_counter(struct queue *q, uint64_t *val) 157 { 158 int ret; 159 uint64_t tmp = 0; 160 161 if (!q || !val) 162 return -EINVAL; 163 /* 164 * SDMA activity counter is stored at queue's RPTR + 0x8 location. 165 */ 166 if (!access_ok((const void __user *)((uint64_t)q->properties.read_ptr + 167 sizeof(uint64_t)), sizeof(uint64_t))) { 168 pr_err("Can't access sdma queue activity counter\n"); 169 return -EFAULT; 170 } 171 173 sizeof(uint64_t))); 174 if (!ret) { 175 *val = tmp; 176 } 177 178 return ret; 179 } 180 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org