Re: [PATCH v6 RESEND 2/2] EDAC: Add EDAC driver for loongson memory controller

[kernel test robot]

Hi Zhao,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 61124f42dcaa30f58a8b47a2b69ddb80260677c7]

url:    https://github.com/intel-lab-lkp/linux/commits/Zhao-Qunqin/dt-bindings-EDAC-for-ls3a5000-memory-controller/20241018-094803
base:   61124f42dcaa30f58a8b47a2b69ddb80260677c7
patch link:    https://lore.kernel.org/r/20241018014542.27283-3-zhaoqunqin%40loongson.cn
patch subject: [PATCH v6 RESEND 2/2] EDAC: Add EDAC driver for loongson memory controller
config: arm64-randconfig-r113-20241019 (https://download.01.org/0day-ci/archive/20241020/202410200949.GpnHSLfV-lkp@xxxxxxxxx/config)
compiler: aarch64-linux-gcc (GCC) 14.1.0
reproduce: (https://download.01.org/0day-ci/archive/20241020/202410200949.GpnHSLfV-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410200949.GpnHSLfV-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
>> drivers/edac/loongson_edac.c:100:15: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected unsigned long long [usertype] *vbase @@     got void [noderef] __iomem * @@
   drivers/edac/loongson_edac.c:100:15: sparse:     expected unsigned long long [usertype] *vbase
   drivers/edac/loongson_edac.c:100:15: sparse:     got void [noderef] __iomem *

vim +100 drivers/edac/loongson_edac.c

    91	
    92	static int edac_probe(struct platform_device *pdev)
    93	{
    94		struct edac_mc_layer layers[2];
    95		struct loongson_edac_pvt *pvt;
    96		struct mem_ctl_info *mci;
    97		u64 *vbase;
    98		int ret;
    99	
 > 100		vbase = devm_platform_ioremap_resource(pdev, 0);
   101		if (IS_ERR(vbase))
   102			return PTR_ERR(vbase);
   103	
   104		/* allocate a new MC control structure */
   105		layers[0].type = EDAC_MC_LAYER_CHANNEL;
   106		layers[0].size = 1;
   107		layers[0].is_virt_csrow = false;
   108		layers[1].type = EDAC_MC_LAYER_SLOT;
   109		layers[1].size = 1;
   110		layers[1].is_virt_csrow = true;
   111		mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, sizeof(*pvt));
   112		if (mci == NULL)
   113			return -ENOMEM;
   114	
   115		mci->mc_idx = edac_device_alloc_index();
   116		mci->mtype_cap = MEM_FLAG_RDDR4;
   117		mci->edac_ctl_cap = EDAC_FLAG_NONE;
   118		mci->edac_cap = EDAC_FLAG_NONE;
   119		mci->mod_name = "loongson_edac.c";
   120		mci->ctl_name = "loongson_edac_ctl";
   121		mci->dev_name = "loongson_edac_dev";
   122		mci->ctl_page_to_phys = NULL;
   123		mci->pdev = &pdev->dev;
   124		mci->error_desc.grain = 8;
   125		/* Set the function pointer to an actual operation function */
   126		mci->edac_check = edac_check;
   127	
   128		pvt_init(mci, vbase);
   129		get_dimm_config(mci);
   130	
   131		ret = edac_mc_add_mc(mci);
   132		if (ret) {
   133			edac_dbg(0, "MC: failed edac_mc_add_mc()\n");
   134			edac_mc_free(mci);
   135			return ret;
   136		}
   137		edac_op_state = EDAC_OPSTATE_POLL;
   138	
   139		return 0;
   140	}
   141	

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