powerpc: Move some extern declarations from C code into headers
This also make klimit have the same type on 32-bit as on 64-bit,
namely unsigned long, and defines and initializes it in one place.
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 06e4ef2..bae4bff 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -69,6 +69,8 @@
EXPORT_SYMBOL(_machine);
#endif
+unsigned long klimit = (unsigned long) _end;
+
/*
* This still seems to be needed... -- paulus
*/