[radeon-alex:amd-staging-drm-next 451/607] drivers/gpu/drm/amd/amdgpu/../powerplay/smu_v11_0.c:60:31: sparse: warning: cast to restricted __le32

[kbuild test robot]

tree:   git://people.freedesktop.org/~agd5f/linux.git amd-staging-drm-next
head:   9bf083e6426b8df943f0da4a7ef8d8f407a26e9f
commit: 58560ce0c438137ef4dca63fabf58a16dbf35c19 [451/607] drm/amd/powerplay: init microcode for smu11
reproduce:
        # apt-get install sparse
        git checkout 58560ce0c438137ef4dca63fabf58a16dbf35c19
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../powerplay/smu_v11_0.c:60:31: sparse: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/../powerplay/smu_v11_0.c:68:25: sparse: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/../powerplay/smu_v11_0.c:68:25: sparse: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/../powerplay/smu_v11_0.c:68:25: sparse: warning: cast to restricted __le32

vim +60 drivers/gpu/drm/amd/amdgpu/../powerplay/smu_v11_0.c

    30	
    31	static int smu_v11_0_init_microcode(struct smu_context *smu)
    32	{
    33		struct amdgpu_device *adev = smu->adev;
    34		const char *chip_name;
    35		char fw_name[30];
    36		int err = 0;
    37		const struct smc_firmware_header_v1_0 *hdr;
    38		const struct common_firmware_header *header;
    39		struct amdgpu_firmware_info *ucode = NULL;
    40	
    41		switch (adev->asic_type) {
    42		case CHIP_VEGA20:
    43			chip_name = "vega20";
    44			break;
    45		default:
    46			BUG();
    47		}
    48	
    49		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_smc.bin", chip_name);
    50	
    51		err = request_firmware(&adev->pm.fw, fw_name, adev->dev);
    52		if (err)
    53			goto out;
    54		err = amdgpu_ucode_validate(adev->pm.fw);
    55		if (err)
    56			goto out;
    57	
    58		hdr = (const struct smc_firmware_header_v1_0 *) adev->pm.fw->data;
    59		amdgpu_ucode_print_smc_hdr(&hdr->header);
  > 60		adev->pm.fw_version = le32_to_cpu(hdr->header.ucode_version);
    61	
    62		if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
    63			ucode = &adev->firmware.ucode[AMDGPU_UCODE_ID_SMC];
    64			ucode->ucode_id = AMDGPU_UCODE_ID_SMC;
    65			ucode->fw = adev->pm.fw;
    66			header = (const struct common_firmware_header *)ucode->fw->data;
    67			adev->firmware.fw_size +=
    68				ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);
    69		}
    70	
    71	out:
    72		if (err) {
    73			DRM_ERROR("smu_v11_0: Failed to load firmware \"%s\"\n",
    74				  fw_name);
    75			release_firmware(adev->pm.fw);
    76			adev->pm.fw = NULL;
    77		}
    78		return err;
    79	}
    80	

---
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