# \[PATCH 11/27\] sh, smpboot: Use generic SMP booting infrastructure

- From: Srivatsa S. Bhat \<hidden\>
- Date: 2012-06-01 09:15:52 
- List: linux-arch
- Page: https://ratatoskr.run/linux-arch/2012/06/3873134
- Thread: https://ratatoskr.run/linux-arch/2012/06/3873118/t.md

```text
Convert sh to use the generic framework to boot secondary CPUs.

Notes:
Postpone enabling local interrupts to after completing bringup of
secondary CPU.

Cc: Paul Mundt <redacted>
Cc: Thomas Gleixner <redacted>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Rusty Russell <redacted>
Cc: Mike Frysinger <redacted>
Cc: <redacted>
Signed-off-by: Srivatsa S. Bhat <redacted>
---

 arch/sh/kernel/smp.c |   19 +++++++++----------
 1 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 8e0fde0..d7f7faf 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -179,6 +179,11 @@ void native_play_dead(void)
 
 asmlinkage void __cpuinit start_secondary(void)
 {
+	smpboot_start_secondary(NULL);
+}
+
+void __cpuinit __cpu_pre_starting(void *unused)
+{
 	unsigned int cpu = smp_processor_id();
 	struct mm_struct *mm = &init_mm;
 
@@ -190,23 +195,17 @@ asmlinkage void __cpuinit start_secondary(void)
 	local_flush_tlb_all();
 
 	per_cpu_trap_init();
+}
 
-	preempt_disable();
-
-	notify_cpu_starting(cpu);
-
-	local_irq_enable();
+void __cpuinit __cpu_pre_online(void *unused)
+{
+	unsigned int cpu = smp_processor_id();
 
 	/* Enable local timers */
 	local_timer_setup(cpu);
 	calibrate_delay();
 
 	smp_store_cpu_info(cpu);
-
-	set_cpu_online(cpu, true);
-	per_cpu(cpu_state, cpu) = CPU_ONLINE;
-
-	cpu_idle();
 }
 
 extern struct {
```