[linux-arm:cex7 90/97] drivers/net/ethernet/freescale/xgmac_mdio.c:253:10: warning: returning 'int' from a function with return type 'struct mii_bus *' makes pointer from integer without a cast

[linux-arm:cex7 90/97] drivers/net/ethernet/freescale/xgmac_mdio.c:253:10: warning: returning 'int' from a function with return type 'struct mii_bus *' makes pointer from integer without a cast

[kbuild test robot]

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tree:   git://git.armlinux.org.uk/~rmk/linux-arm cex7
head:   5e4c06bd918e1ad6a672df506a340a8af67494e3
commit: 3130d40289d8c91e16c5a48233c144f5bda397b3 [90/97] net: xgmac_mdio: allow ethernet drivers to create mdio buses
config: nds32-allyesconfig (attached as .config)
compiler: nds32le-linux-gcc (GCC) 9.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 3130d40289d8c91e16c5a48233c144f5bda397b3
        # save the attached .config to linux build tree
        GCC_VERSION=9.2.0 make.cross ARCH=nds32 

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

All warnings (new ones prefixed by >>):

   drivers/net/ethernet/freescale/xgmac_mdio.c: In function 'xgmac_mdio_bus_create':
>> drivers/net/ethernet/freescale/xgmac_mdio.c:253:10: warning: returning 'int' from a function with return type 'struct mii_bus *' makes pointer from integer without a cast [-Wint-conversion]
     253 |   return -ENOMEM;
         |          ^

vim +253 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 -ENOMEM;
   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	

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation

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