sparc32: fix sparse warnings in sun4d_smp.c

Fix following warnings:
sun4d_smp.c:113:13: warning: symbol 'smp4d_boot_cpus' was not declared. Should it be static?
sun4d_smp.c:121:5: warning: symbol 'smp4d_boot_one_cpu' was not declared. Should it be static?
sun4d_smp.c:162:13: warning: symbol 'smp4d_smp_done' was not declared. Should it be static?
sun4d_smp.c:353:6: warning: symbol 'smp4d_cross_call_irq' was not declared. Should it be static?
sun4d_smp.c:363:6: warning: symbol 'smp4d_percpu_timer_interrupt' was not declared. Should it be static?

Add proper declarations

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h
index 75d4171..71d56ae 100644
--- a/arch/sparc/kernel/kernel.h
+++ b/arch/sparc/kernel/kernel.h
@@ -72,6 +72,11 @@
 /* sun4d_smp.c */
 void sun4d_cpu_pre_starting(void *arg);
 void sun4d_cpu_pre_online(void *arg);
+void __init smp4d_boot_cpus(void);
+int smp4d_boot_one_cpu(int i, struct task_struct *idle);
+void __init smp4d_smp_done(void);
+void smp4d_cross_call_irq(void);
+void smp4d_percpu_timer_interrupt(struct pt_regs *regs);
 
 /* leon_smp.c */
 void leon_cpu_pre_starting(void *arg);
diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c
index ab86c5e..9d3297d 100644
--- a/arch/sparc/kernel/smp_32.c
+++ b/arch/sparc/kernel/smp_32.c
@@ -75,7 +75,6 @@
 
 void __init smp_cpus_done(unsigned int max_cpus)
 {
-	extern void smp4d_smp_done(void);
 	unsigned long bogosum = 0;
 	int cpu, num = 0;
 
@@ -182,7 +181,6 @@
 
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
-	extern void __init smp4d_boot_cpus(void);
 	int i, cpuid, extra;
 
 	printk("Entering SMP Mode...\n");
@@ -259,7 +257,6 @@
 
 int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 {
-	extern int smp4d_boot_one_cpu(int, struct task_struct *);
 	int ret=0;
 
 	switch(sparc_cpu_model) {