[PATCH] s390: merge common parts of head.S and head64.S

Merge common parts of head.S and head64.S into head.S and move architecture
specific parts to head31.S and head64.S respectively.  Saves us ~500 lines
of duplicated assembly code.

Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index 98db304..73a09a6 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -76,9 +76,7 @@
 OBJCOPYFLAGS	:= -O binary
 LDFLAGS_vmlinux := -e start
 
-head-$(CONFIG_ARCH_S390_31)	+= arch/$(ARCH)/kernel/head.o
-head-$(CONFIG_ARCH_S390X)	+= arch/$(ARCH)/kernel/head64.o
-head-y				+= arch/$(ARCH)/kernel/init_task.o
+head-y		:= arch/$(ARCH)/kernel/head.o arch/$(ARCH)/kernel/init_task.o
 
 core-y		+= arch/$(ARCH)/mm/ arch/$(ARCH)/kernel/ arch/$(ARCH)/crypto/ \
 		   arch/$(ARCH)/appldata/