From 04b9c96eae72d862726f2f4bfcec2078240c33c5 Mon Sep 17 00:00:00 2001
From: Balbir Singh <bsingharora@gmail.com>
Date: Fri, 15 Dec 2017 19:14:54 +1100
Subject: [PATCH] powerpc/crash: Remove the test for cpu_online in the IPI
callback
References: bsc#1086791
Patch-mainline: v4.16-rc1
Git-commit: 04b9c96eae72d862726f2f4bfcec2078240c33c5
Our check was extra cautious, we've audited crash_send_ipi
and it sends an IPI only to online CPU's. Removal of this
check should have not functional impact on crash kdump.
Signed-off-by: Balbir Singh <bsingharora@gmail.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
arch/powerpc/kernel/crash.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index cbabb5adccd9..29c56ca2ddfd 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -69,9 +69,6 @@ static void crash_ipi_callback(struct pt_regs *regs)
int cpu = smp_processor_id();
- if (!cpu_online(cpu))
- return;
-
hard_irq_disable();
if (!cpumask_test_cpu(cpu, &cpus_state_saved)) {
crash_save_cpu(regs, cpu);
--
2.13.6