[PATCH] powerpc: cleanup pmac_newworld variable usage

remove extern declarations of pmac_newworld
move pmac_newworld to bss
if there is any "interrupt-controller" device, then it is newworld.
Signed-off-by: NOlaf Hering <olh@suse.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

arch/powerpc/kernel/ppc_ksyms.c

@@ -57,7 +57,6 @@ extern void machine_check_exception(struct pt_regs *regs);
 extern void alignment_exception(struct pt_regs *regs);
 extern void program_check_exception(struct pt_regs *regs);
 extern void single_step_exception(struct pt_regs *regs);
-extern int pmac_newworld;
 extern int sys_sigreturn(struct pt_regs *regs);
 
 EXPORT_SYMBOL(clear_pages);

arch/powerpc/platforms/powermac/setup.c

@@ -88,11 +88,10 @@ int ppc_override_l2cr = 0;
 int ppc_override_l2cr_value;
 int has_l2cache = 0;
 
-int pmac_newworld = 1;
+int pmac_newworld;
 
 static int current_root_goodness = -1;
 
-extern int pmac_newworld;
 extern struct machdep_calls pmac_md;
 
 #define DEFAULT_ROOT_DEVICE Root_SDA1	/* sda1 - slightly silly choice */
@@ -310,9 +309,10 @@ static void __init pmac_setup_arch(void)
 	for (ic = NULL; (ic = of_find_all_nodes(ic)) != NULL; )
 		if (get_property(ic, "interrupt-controller", NULL))
 			break;
-	pmac_newworld = (ic != NULL);
-	if (ic)
+	if (ic) {
+		pmac_newworld = 1;
 		of_node_put(ic);
+	}
 
 	/* Lookup PCI hosts */
 	pmac_pci_init();