Re: [PATCH v1 1/1] platform/mellanox: Add bootctl driver for Mellanox BlueField Soc

[kbuild test robot <lkp@intel.com>]

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Hi Liming,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.0-rc4 next-20190131]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Liming-Sun/platform-mellanox-Add-bootctl-driver-for-Mellanox-BlueField-Soc/20190201-104657
config: arm64-allmodconfig (attached as .config)
compiler: aarch64-linux-gnu-gcc (Debian 8.2.0-11) 8.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=8.2.0 make.cross ARCH=arm64 

All errors (new ones prefixed by >>):

   drivers/platform/mellanox/mlxbf-bootctl.c:260:36: error: array type has incomplete element type 'struct acpi_device_id'
    static const struct acpi_device_id mlxbf_bootctl_acpi_ids[] = {
                                       ^~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/module.h:18,
                    from drivers/platform/mellanox/mlxbf-bootctl.c:12:
>> drivers/platform/mellanox/mlxbf-bootctl.c:314:20: error: expected ',' or ';' before 'DRIVER_DESCRIPTION'
    MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
                       ^~~~~~~~~~~~~~~~~~
   include/linux/moduleparam.h:24:26: note: in definition of macro '__MODULE_INFO'
      = __stringify(tag) "=" info
                             ^~~~
   include/linux/module.h:208:42: note: in expansion of macro 'MODULE_INFO'
    #define MODULE_DESCRIPTION(_description) MODULE_INFO(description, _description)
                                             ^~~~~~~~~~~
   drivers/platform/mellanox/mlxbf-bootctl.c:314:1: note: in expansion of macro 'MODULE_DESCRIPTION'
    MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
    ^~~~~~~~~~~~~~~~~~

vim +314 drivers/platform/mellanox/mlxbf-bootctl.c

   259	
 > 260	static const struct acpi_device_id mlxbf_bootctl_acpi_ids[] = {
   261		{"MLNXBF04", 0},
   262		{},
   263	};
   264	
   265	MODULE_DEVICE_TABLE(acpi, mlxbf_bootctl_acpi_ids);
   266	
   267	static int mlxbf_bootctl_probe(struct platform_device *pdev)
   268	{
   269		struct arm_smccc_res res;
   270	
   271		/*
   272		 * Ensure we have the UUID we expect for this service.
   273		 * Note that the functionality we want is present in the first
   274		 * released version of this service, so we don't check the version.
   275		 */
   276		arm_smccc_smc(MLXBF_BOOTCTL_SIP_SVC_UID, 0, 0, 0, 0, 0, 0, 0, &res);
   277		if (res.a0 != 0x89c036b4 || res.a1 != 0x11e6e7d7 ||
   278		    res.a2 != 0x1a009787 || res.a3 != 0xc4bf00ca)
   279			return -ENODEV;
   280	
   281		/*
   282		 * When watchdog is used, it sets boot mode to MLXBF_BOOTCTL_SWAP_EMMC
   283		 * in case of boot failures. However it doesn't clear the state if there
   284		 * is no failure. Restore the default boot mode here to avoid any
   285		 * unnecessary boot partition swapping.
   286		 */
   287		if (mlxbf_bootctl_smc_call1(MLXBF_BOOTCTL_SET_RESET_ACTION,
   288					    MLXBF_BOOTCTL_EMMC) < 0)
   289			pr_err("Unable to reset the EMMC boot mode\n");
   290	
   291		pr_info("%s (version %s)\n", MLXBF_BOOTCTL_DRIVER_DESCRIPTION,
   292			MLXBF_BOOTCTL_DRIVER_VERSION);
   293	
   294		return 0;
   295	}
   296	
   297	static int mlxbf_bootctl_remove(struct platform_device *pdev)
   298	{
   299		return 0;
   300	}
   301	
   302	static struct platform_driver mlxbf_bootctl_driver = {
   303		.probe = mlxbf_bootctl_probe,
   304		.remove = mlxbf_bootctl_remove,
   305		.driver = {
   306			.name = MLXBF_BOOTCTL_DRIVER_NAME,
   307			.groups = mlxbf_bootctl_attr_groups,
   308			.acpi_match_table = ACPI_PTR(mlxbf_bootctl_acpi_ids),
   309		}
   310	};
   311	
   312	module_platform_driver(mlxbf_bootctl_driver);
   313	
 > 314	MODULE_DESCRIPTION(DRIVER_DESCRIPTION);

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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