Hi Taku,

FYI, kernel build failed on

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git pci/taku-acpi-pci-host-bridge-v3
head:   e3faec8ea9c8aa683c56fa20ff2c58a4c5857960
commit: e3faec8ea9c8aa683c56fa20ff2c58a4c5857960 [7/7] PCI/ACPI: Add resource-assign code for devices under hot-added hostbridge
config: i386-randconfig-b051 (attached as .config)

All related error/warning messages:

drivers/built-in.o: In function `acpi_pci_root_start':
pci_root.c:(.text+0x37830): undefined reference to `pci_configure_slot'

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0-DAY kernel build testing backend         Open Source Technology Centre
Fengguang Wu, Yuanhan Liu                              Intel Corporation