zpci_read          63 arch/s390/include/asm/pci_io.h zpci_read(4, u32)
zpci_read          64 arch/s390/include/asm/pci_io.h zpci_read(2, u16)
zpci_read          65 arch/s390/include/asm/pci_io.h zpci_read(1, u8)