ARM: CPU hotplug: move cpu_killed completion to core code
We always need to wait for the dying CPU to reach a safe state before
taking it down, irrespective of the requirements of the platform.
Move the completion code into the ARM SMP hotplug code rather than
having each platform re-implement this.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-omap2/omap-hotplug.c b/arch/arm/mach-omap2/omap-hotplug.c
index 6cee456..ace979d 100644
--- a/arch/arm/mach-omap2/omap-hotplug.c
+++ b/arch/arm/mach-omap2/omap-hotplug.c
@@ -17,16 +17,13 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/smp.h>
-#include <linux/completion.h>
#include <asm/cacheflush.h>
#include <mach/omap4-common.h>
-static DECLARE_COMPLETION(cpu_killed);
-
int platform_cpu_kill(unsigned int cpu)
{
- return wait_for_completion_timeout(&cpu_killed, 5000);
+ return 1;
}
/*
@@ -42,8 +39,7 @@
this_cpu, cpu);
BUG();
}
- pr_notice("CPU%u: shutdown\n", cpu);
- complete(&cpu_killed);
+
flush_cache_all();
dsb();