[PATCH] powerpc/pseries: Make vio and ibmebus initcalls pseries specific

[kbuild test robot]

Hi Oliver,

I love your patch! Yet something to improve:

[auto build test ERROR on powerpc/next]
[also build test ERROR on scottwood/next v5.7-rc2 next-20200420]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Oliver-O-Halloran/powerpc-pseries-Make-vio-and-ibmebus-initcalls-pseries-specific/20200417-121826
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-defconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
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
        COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=powerpc 

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

All errors (new ones prefixed by >>):

   arch/powerpc/platforms/pseries/ibmebus.c:467:1: error: data definition has no type or storage class [-Werror]
     467 | machine_postcore_initcall(pseries, ibmebus_bus_init);
         | ^~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/powerpc/platforms/pseries/ibmebus.c:467:1: error: type defaults to 'int' in declaration of 'machine_postcore_initcall' [-Werror=implicit-int]
   arch/powerpc/platforms/pseries/ibmebus.c:467:1: error: parameter names (without types) in function declaration [-Werror]
>> arch/powerpc/platforms/pseries/ibmebus.c:436:19: error: 'ibmebus_bus_init' defined but not used [-Werror=unused-function]
     436 | static int __init ibmebus_bus_init(void)
         |                   ^~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +467 arch/powerpc/platforms/pseries/ibmebus.c

   435	
 > 436	static int __init ibmebus_bus_init(void)
   437	{
   438		int err;
   439	
   440		printk(KERN_INFO "IBM eBus Device Driver\n");
   441	
   442		err = bus_register(&ibmebus_bus_type);
   443		if (err) {
   444			printk(KERN_ERR "%s: failed to register IBM eBus.\n",
   445			       __func__);
   446			return err;
   447		}
   448	
   449		err = device_register(&ibmebus_bus_device);
   450		if (err) {
   451			printk(KERN_WARNING "%s: device_register returned %i\n",
   452			       __func__, err);
   453			bus_unregister(&ibmebus_bus_type);
   454	
   455			return err;
   456		}
   457	
   458		err = ibmebus_create_devices(ibmebus_matches);
   459		if (err) {
   460			device_unregister(&ibmebus_bus_device);
   461			bus_unregister(&ibmebus_bus_type);
   462			return err;
   463		}
   464	
   465		return 0;
   466	}
 > 467	machine_postcore_initcall(pseries, ibmebus_bus_init);

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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