[MIPS] Remove redeclarations of setup_irq().

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/ddb5xxx/ddb5477/irq.c

@@ -74,7 +74,6 @@ set_pci_int_attr(u32 pci, u32 intn, u32 active, u32 trigger)
 
 extern void vrc5477_irq_init(u32 base);
 extern void mips_cpu_irq_init(u32 base);
-extern int setup_irq(unsigned int irq, struct irqaction *irqaction);
 static struct irqaction irq_cascade = { no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL };
 
 void __init arch_init_irq(void)

arch/mips/ddb5xxx/ddb5477/setup.c

@@ -19,6 +19,7 @@
 #include <linux/sched.h>
 #include <linux/pci.h>
 #include <linux/ide.h>
+#include <linux/irq.h>
 #include <linux/fs.h>
 #include <linux/ioport.h>
 #include <linux/param.h>	/* for HZ */
@@ -146,8 +147,6 @@ static void __init ddb_time_init(void)
 	mips_hpt_frequency = bus_frequency*(i+4)/4;
 }
 
-extern int setup_irq(unsigned int irq, struct irqaction *irqaction);
-
 static void __init ddb_timer_setup(struct irqaction *irq)
 {
 #if defined(USE_CPU_COUNTER_TIMER)

arch/mips/jmr3927/rbhma3100/setup.c

@@ -40,6 +40,7 @@
 #include <linux/sched.h>
 #include <linux/pci.h>
 #include <linux/ide.h>
+#include <linux/irq.h>
 #include <linux/ioport.h>
 #include <linux/param.h>	/* for HZ */
 #include <linux/delay.h>
@@ -183,7 +184,6 @@ static void __init jmr3927_time_init(void)
 }
 
 unsigned long jmr3927_do_gettimeoffset(void);
-extern int setup_irq(unsigned int irq, struct irqaction *irqaction);
 
 static void __init jmr3927_timer_setup(struct irqaction *irq)
 {

arch/mips/sgi-ip22/ip22-time.c

@@ -12,6 +12,7 @@
 #include <linux/bcd.h>
 #include <linux/ds1286.h>
 #include <linux/init.h>
+#include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
@@ -198,8 +199,6 @@ void indy_r4k_timer_interrupt(struct pt_regs *regs)
 	irq_exit();
 }
 
-extern int setup_irq(unsigned int irq, struct irqaction *irqaction);
-
 static void indy_timer_setup(struct irqaction *irq)
 {
 	/* over-write the handler, we use our own way */