[linux-arm:cex7 92/97] drivers/net/ethernet/freescale/xgmac_mdio.c:262:25: sparse: sparse: incorrect type in assignment (different address spaces)

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

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tree:   git://git.armlinux.org.uk/~rmk/linux-arm cex7
head:   2f8726526ed0fd189f8a945c06f8b9850777a5ca
commit: 3c4c60c5729d166b5d864902e3f225713beb3b5d [92/97] net: xgmac_mdio: allow ethernet drivers to create mdio buses
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-154-g1dc00f87-dirty
        git checkout 3c4c60c5729d166b5d864902e3f225713beb3b5d
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)

>> drivers/net/ethernet/freescale/xgmac_mdio.c:262:25: sparse: sparse: incorrect type in assignment (different address spaces)
>> drivers/net/ethernet/freescale/xgmac_mdio.c:262:25: sparse:    expected struct tgec_mdio_controller [noderef] <asn:2> *mdio_base
>> drivers/net/ethernet/freescale/xgmac_mdio.c:262:25: sparse:    got void *base
   drivers/net/ethernet/freescale/xgmac_mdio.c:287:14: sparse: sparse: incorrect type in assignment (different address spaces)
>> drivers/net/ethernet/freescale/xgmac_mdio.c:287:14: sparse:    expected void *base
>> drivers/net/ethernet/freescale/xgmac_mdio.c:287:14: sparse:    got void [noderef] <asn:2> *
   drivers/net/ethernet/freescale/xgmac_mdio.c:315:17: sparse: sparse: incorrect type in argument 1 (different address spaces)
   drivers/net/ethernet/freescale/xgmac_mdio.c:315:17: sparse:    expected void volatile [noderef] <asn:2> *addr
   drivers/net/ethernet/freescale/xgmac_mdio.c:315:17: sparse:    got void *base
   drivers/net/ethernet/freescale/xgmac_mdio.c:325:20: sparse: sparse: incorrect type in argument 1 (different address spaces)
   drivers/net/ethernet/freescale/xgmac_mdio.c:325:20: sparse:    expected void volatile [noderef] <asn:2> *addr
   drivers/net/ethernet/freescale/xgmac_mdio.c:325:20: sparse:    got void *priv

vim +262 drivers/net/ethernet/freescale/xgmac_mdio.c

   243	
   244	struct mii_bus *xgmac_mdio_bus_create(struct device *parent,
   245					      unsigned long long id,
   246					      void *base, bool is_little_endian)
   247	{
   248		struct mdio_fsl_priv *priv;
   249		struct mii_bus *bus;
   250	
   251		bus = mdiobus_alloc_size(sizeof(struct mdio_fsl_priv));
   252		if (!bus)
   253			return NULL;
   254	
   255		bus->name = "Freescale XGMAC MDIO Bus";
   256		bus->read = xgmac_mdio_read;
   257		bus->write = xgmac_mdio_write;
   258		bus->parent = parent;
   259		snprintf(bus->id, MII_BUS_ID_SIZE, "%llx", id);
   260	
   261		priv = bus->priv;
 > 262		priv->mdio_base = base;
   263		priv->is_little_endian = is_little_endian;
   264	
   265		return bus;
   266	}
   267	EXPORT_SYMBOL_GPL(xgmac_mdio_bus_create);
   268	
   269	static int xgmac_mdio_probe(struct platform_device *pdev)
   270	{
   271		struct device_node *np = pdev->dev.of_node;
   272		struct mdio_fsl_priv *priv;
   273		bool is_little_endian;
   274		struct mii_bus *bus;
   275		struct resource res;
   276		void *base;
   277		int ret;
   278	
   279		ret = of_address_to_resource(np, 0, &res);
   280		if (ret) {
   281			dev_err(&pdev->dev, "could not obtain address\n");
   282			return ret;
   283		}
   284	
   285		is_little_endian = of_property_read_bool(np, "little-endian");
   286	
 > 287		base = of_iomap(np, 0);
   288		if (!base)
   289			return -ENOMEM;
   290	
   291		bus = xgmac_mdio_bus_create(&pdev->dev, res.start, base,
   292					    is_little_endian);
   293		if (!bus) {
   294			ret = -ENOMEM;
   295			goto err_create;
   296		}
   297	
   298		priv = bus->priv;
   299		priv->has_a011043 = of_property_read_bool(pdev->dev.of_node,
   300							  "fsl,erratum-a011043");
   301	
   302		ret = of_mdiobus_register(bus, np);
   303		if (ret) {
   304			dev_err(&pdev->dev, "cannot register MDIO bus\n");
   305			goto err_registration;
   306		}
   307	
   308		platform_set_drvdata(pdev, bus);
   309	
   310		return 0;
   311	
   312	err_registration:
   313		mdiobus_free(bus);
   314	err_create:
   315		iounmap(base);
   316	
   317		return ret;
   318	}
   319	

---
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