[kbuild-all] [linux-next:master 827/2089] drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c:140:53: sparse: sparse: cast to restricted __le32

tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 5fcb9628fd1227a5f11d87171cb1b8b5c414d9d9 commit: 157e72e831cb8f323108b5df6d0b148aef9507fb [827/2089] drm/amdgpu: add sdma ip block for sienna_cichlid (v5) config: i386-randconfig-s001-20200617 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-rc1-6-g78f577f8-dirty git checkout 157e72e831cb8f323108b5df6d0b148aef9507fb # save the attached .config to linux build tree make W=1 C=1 ARCH=i386 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/sdma_v5_2.c:141:58: sparse: sparse: cast to restricted __le32 drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c:153:33: sparse: sparse: cast to restricted __le32 drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c:153:33: sparse: sparse: cast to restricted __le32 drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c:153:33: sparse: sparse: cast to restricted __le32 drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c:742:27: sparse: sparse: cast to restricted __le32 drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c:746:33: sparse: sparse: cast to restricted __le32 drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c:851:23: sparse: sparse: cast to restricted __le32 drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c:894:28: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int volatile [usertype] @@ got restricted __le32 [usertype] @@ drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c:894:28: sparse: expected unsigned int volatile [usertype] drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c:894:28: sparse: got restricted __le32 [usertype] drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c:926:15: sparse: sparse: cast to restricted __le32 drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c:1322:21: sparse: sparse: cast to restricted __le32 vim +140 drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c 96 97 /** 98 * sdma_v5_2_init_microcode - load ucode images from disk 99 * 100 * @adev: amdgpu_device pointer 101 * 102 * Use the firmware interface to load the ucode images into 103 * the driver (not loaded into hw). 104 * Returns 0 on success, error on failure. 105 */ 106 107 // emulation only, won't work on real chip 108 // navi10 real chip need to use PSP to load firmware 109 static int sdma_v5_2_init_microcode(struct amdgpu_device *adev) 110 { 111 const char *chip_name; 112 char fw_name[40]; 113 int err = 0, i; 114 struct amdgpu_firmware_info *info = NULL; 115 const struct common_firmware_header *header = NULL; 116 const struct sdma_firmware_header_v1_0 *hdr; 117 118 DRM_DEBUG("\n"); 119 120 switch (adev->asic_type) { 121 case CHIP_SIENNA_CICHLID: 122 chip_name = "sienna_cichlid"; 123 break; 124 default: 125 BUG(); 126 } 127 128 for (i = 0; i < adev->sdma.num_instances; i++) { 129 if (i == 0) 130 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name); 131 else 132 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma%d.bin", chip_name, i); 133 err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev); 134 if (err) 135 goto out; 136 err = amdgpu_ucode_validate(adev->sdma.instance[i].fw); 137 if (err) 138 goto out; 139 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data; 141 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version); 142 if (adev->sdma.instance[i].feature_version >= 20) 143 adev->sdma.instance[i].burst_nop = true; 144 DRM_DEBUG("psp_load == '%s'\n", 145 adev->firmware.load_type == AMDGPU_FW_LOAD_PSP ? "true" : "false"); 146 147 if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) { 148 info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i]; 149 info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i; 150 info->fw = adev->sdma.instance[i].fw; 151 header = (const struct common_firmware_header *)info->fw->data; 152 adev->firmware.fw_size += 153 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE); 154 } 155 } 156 out: 157 if (err) { 158 DRM_ERROR("sdma_v5_2: Failed to load firmware \"%s\"\n", fw_name); 159 for (i = 0; i < adev->sdma.num_instances; i++) { 160 release_firmware(adev->sdma.instance[i].fw); 161 adev->sdma.instance[i].fw = NULL; 162 } 163 } 164 return err; 165 } 166 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org