drivers/pci/quirks.c:pci_msi_quirk is only defined if CONFIG_X86_IO_APIC, but
msi_init() unconditionally uses it.
Acked-by: "Nguyen, Tom L" <tom.l.nguyen@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>