MIPS: SGI-IP27: No need for slice_map

per_cpu_init is called exactly once for every CPU. So there is no
need for protection via slice_map.

Signed-off-by: Thomas Bogendoerfer <[e-mail]>
Signed-off-by: Paul Burton <[e-mail]>
Cc: Ralf Baechle <[e-mail]>
Cc: James Hogan <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]

arch/mips/include/asm/mach-ip27/mmzone.h

···
 	kern_vars_t	kern_vars;
 	DECLARE_BITMAP(h_bigwin_used, HUB_NUM_BIG_WINDOW);
 	cpumask_t	h_cpus;
-	unsigned long slice_map;
 };
 
 struct node_data {

arch/mips/sgi-ip27/ip27-init.c

···
 void per_cpu_init(void)
 {
 	int cpu = smp_processor_id();
-	int slice = LOCAL_HUB_L(PI_CPU_NUM);
 	nasid_t nasid = get_nasid();
-	struct hub_data *hub = hub_data(nasid);
-
-	if (test_and_set_bit(slice, &hub->slice_map))
-		return;
 
 	clear_c0_status(ST0_IM);