[PATCH 14/14] MIPS: SGI-IP27: No need for slice_map

Thomas Bogendoerfer
2020-01-09T12:34:30Z

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 <tbogendoerfer@suse.de>
---
arch/mips/include/asm/mach-ip27/mmzone.h | 1 -
arch/mips/sgi-ip27/ip27-init.c | 5 -----
2 files changed, 6 deletions(-)

diff --git a/arch/mips/include/asm/mach-ip27/mmzone.h b/arch/mips/include/asm/mach-ip27/mmzone.h
index 534a50f79147..08c36e50a860 100644
--- a/arch/mips/include/asm/mach-ip27/mmzone.h
+++ b/arch/mips/include/asm/mach-ip27/mmzone.h
@@ -13,7 +13,6 @@ struct hub_data {
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 {
diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c
index 84a78bd1386a..32bcb8d1dd88 100644
--- a/arch/mips/sgi-ip27/ip27-init.c
+++ b/arch/mips/sgi-ip27/ip27-init.c
@@ -72,12 +72,7 @@ static void per_hub_init(nasid_t nasid)
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);

--
2.24.1