Hi Tomasz,

[auto build test ERROR on v4.4-rc4]
[also build test ERROR on next-20151217]
[cannot apply to tip/irq/core v4.4-rc5]

url:    https://github.com/0day-ci/linux/commits/Tomasz-Nowicki/Introduce-ACPI-world-to-GICv3-ITS-irqchip/20151217-195910
config: i386-randconfig-s1-12171706 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   drivers/built-in.o: In function `pci_msi_domain_get_msi_rid':

quoted

(.text+0x3175d): undefined reference to `iort_find_pci_id'

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