[PATCH] powerpc: unified signature of timer_interrupt() between ppc32/ppc64

On ppc64 timer_interrupt() returned a value that was never used.  Changed
the ppc64 version of timer_interrupt() to no longer return a value so
that the signatures between ppc32 & ppc64 match.  This will simplify
future merging of arch/powerpc.
Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/ppc64/kernel/time.c

@@ -319,7 +319,7 @@ unsigned long tb_last_stamp __cacheline_aligned_in_smp;
  * timer_interrupt - gets called when the decrementer overflows,
  * with interrupts disabled.
  */
-int timer_interrupt(struct pt_regs * regs)
+void timer_interrupt(struct pt_regs * regs)
 {
 	int next_dec;
 	unsigned long cur_tb;
@@ -377,8 +377,6 @@ int timer_interrupt(struct pt_regs * regs)
 	}
 
 	irq_exit();
-
-	return 1;
 }
 
 /*

include/asm-ppc64/hw_irq.h

@@ -16,7 +16,7 @@
 #include <linux/errno.h>
 #include <asm/irq.h>
 
-int timer_interrupt(struct pt_regs *);
+extern void timer_interrupt(struct pt_regs *);
 extern void ppc_irq_dispatch_handler(struct pt_regs *regs, int irq);
 
 #ifdef CONFIG_PPC_ISERIES