[PATCH 04/12] ia64: Replace cpu_down with freeze_secondary_cpus

Qais Yousef
2019-10-30T15:42:20Z

Use freeze_secondary_cpus() instead of open coding using cpu_down()
directly.

This also prepares to make cpu_up/down a private interface for anything
but the cpu subsystem.

Signed-off-by: Qais Yousef <qais.yousef@arm.com>
CC: Tony Luck <tony.luck@intel.com>
CC: Fenghua Yu <fenghua.yu@intel.com>
CC: linux-ia64@vger.kernel.org
CC: linux-kernel@vger.kernel.org
---
arch/ia64/kernel/process.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 968b5f33e725..70b433eafa5c 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -647,12 +647,8 @@ cpu_halt (void)
void machine_shutdown(void)
{
#ifdef CONFIG_HOTPLUG_CPU
- int cpu;
-
- for_each_online_cpu(cpu) {
- if (cpu != smp_processor_id())
- cpu_down(cpu);
- }
+ /* TODO: Can we use disable_nonboot_cpus()? */
+ freeze_secondary_cpus(smp_processor_id());
#endif
#ifdef CONFIG_KEXEC
kexec_disable_iosapic();
--
2.17.1