S/390: compile errors with 2.4.18-pre3

I got the following compile errors with 2.4.18-pre3:

gcc -D__KERNEL__ -I/usr/src/linux/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -pipe -fno-strength-reduce -DKBUILD_BASENAME=s390_ksyms -DEXPORT_SYMTAB -c s390_ksyms.c
s390_ksyms.c:61: do_call_softirq' undeclared here (not in a function) s390_ksyms.c:61: initializer element is not constant s390_ksyms.c:61: (near initialization for __ksymtab_do_call_softirq.value') make[1]: *** [s390_ksyms.o] Error 1
make[1]: Leaving directory `/usr/src/linux/arch/s390/kernel'
make: *** [_dir_arch/s390/kernel] Error 2

and:

make[1]: Leaving directory `/usr/src/linux/arch/s390/math-emu'

ld -m elf_s390 -T /usr/src/linux/arch/s390/vmlinux.lds -e start arch/s390/kernel/head.o arch/s390/kernel/init_task.o init/main.o init/version.o \
	--start-group \
	arch/s390/mm/mm.o arch/s390/kernel/kernel.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o \
	 drivers/char/char.o drivers/block/block.o drivers/misc/misc.o drivers/net/net.o drivers/media/media.o drivers/net/tokenring/tr.o drivers/s390/io.o \
	net/network.o \
	/usr/src/linux/arch/s390/lib/lib.a /usr/src/linux/lib/lib.a /usr/src/linux/arch/s390/lib/lib.a \
	--end-group \
	-o vmlinux

drivers/s390/io.o: In function `fs3270_devfs_register':
drivers/s390/io.o(.text+0x20f74): undefined reference to `tty_register_devfs_name'
make: *** [vmlinux] Error 1

This is with CONFIG_DEVFS_FS=y

Jochen

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