Hi Shawn,

I love your patch! Yet something to improve:

[auto build test ERROR on pci/next]
[also build test ERROR on v4.17 next-20180613]
[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/Shawn-Lin/Add-new-helper-to-allocate-IRQ-domain-for-host-drivers/20180613-153030
base:   https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next
config: sh-rsk7269_defconfig (attached as .config)
compiler: sh4-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
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=7.2.0 make.cross ARCH=sh 

All errors (new ones prefixed by >>):

   In file included from arch/sh/kernel/io.c:12:0:
>> include/linux/pci.h:1699:27: error: 'pci_host_alloc_intx_irqd' defined but not used [-Werror=unused-function]
    static struct irq_domain *pci_host_alloc_intx_irqd(struct device *dev,
                              ^~~~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +/pci_host_alloc_intx_irqd +1699 include/linux/pci.h

  1698	
> 1699	static struct irq_domain *pci_host_alloc_intx_irqd(struct device *dev,
  1700					void *host, bool general_xlate,
  1701					const struct irq_domain_ops *intx_domain_ops,
  1702					struct device_node *local_intc)
  1703	{ return ERR_PTR(-EINVAL); }
  1704	#endif /* CONFIG_PCI */
  1705	

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