[kbuild-all] drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:1884:21: sparse: sparse: incorrect type in argument 1 (different address spaces)

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1b5044021070efa3259f3e9548dc35d1eb6aa844 commit: 57430471e2fa60a412e220fa3014567e792aaa6f drm/amdgpu: Add support for USBC PD FW download date: 4 months ago config: riscv-randconfig-s032-20200618 (attached as .config) compiler: riscv64-linux-gcc (GCC) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-rc1-10-gc17b1b06-dirty git checkout 57430471e2fa60a412e220fa3014567e792aaa6f # save the attached .config to linux build tree make W=1 C=1 ARCH=riscv 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/amdgpu_psp.c:160:9: sparse: sparse: incompatible types in conditional expression (different base types): drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:160:9: sparse: void drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:160:9: sparse: int drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:525:5: sparse: sparse: symbol 'psp_ta_invoke' was not declared. Should it be static? drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:1884:21: sparse: got void *[assigned] cpu_addr drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:1887:9: sparse: sparse: undefined identifier 'clflush_cache_range' vim +1884 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c 1857 1858 static ssize_t psp_usbc_pd_fw_sysfs_write(struct device *dev, 1859 struct device_attribute *attr, 1860 const char *buf, 1861 size_t count) 1862 { 1863 struct drm_device *ddev = dev_get_drvdata(dev); 1864 struct amdgpu_device *adev = ddev->dev_private; 1865 void *cpu_addr; 1866 dma_addr_t dma_addr; 1867 int ret; 1868 char fw_name[100]; 1869 const struct firmware *usbc_pd_fw; 1870 1871 1872 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s", buf); 1873 ret = request_firmware(&usbc_pd_fw, fw_name, adev->dev); 1874 if (ret) 1875 goto fail; 1876 1877 /* We need contiguous physical mem to place the FW for psp to access */ 1878 cpu_addr = dma_alloc_coherent(adev->dev, usbc_pd_fw->size, &dma_addr, GFP_KERNEL); 1879 1880 ret = dma_mapping_error(adev->dev, dma_addr); 1881 if (ret) 1882 goto rel_buf; 1883 1885 1886 /*TODO Remove once PSP starts snooping CPU cache */ 1887 clflush_cache_range(cpu_addr, (usbc_pd_fw->size & ~(L1_CACHE_BYTES - 1))); 1888 1889 mutex_lock(&adev->psp.mutex); 1890 ret = psp_load_usbc_pd_fw(&adev->psp, dma_addr); 1891 mutex_unlock(&adev->psp.mutex); 1892 1893 rel_buf: 1894 dma_free_coherent(adev->dev, usbc_pd_fw->size, cpu_addr, dma_addr); 1895 release_firmware(usbc_pd_fw); 1896 1897 fail: 1898 if (ret) { 1899 DRM_ERROR("Failed to load USBC PD FW, err = %d", ret); 1900 return ret; 1901 } 1902 1903 return count; 1904 } 1905 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org