linux-kernel - [RFC UGLY 2/2] arm: Re-enable interrupts after shutting down non-boot CPUs.

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Date:   Thu,  4 Oct 2018 18:23:39 +0200
From:   Nicolas Cavallari <nicolas.cavallari@...en-communications.fr>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Russell King <linux@...linux.org.uk>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [RFC UGLY 2/2] arm: Re-enable interrupts after shutting down non-boot CPUs.

Some system power controller are behind bus like i2c, whose
controller driver requires interrupts to work.

Signed-off-by: Nicolas Cavallari <nicolas.cavallari@...en-communications.fr>
---
 arch/arm/kernel/reboot.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/kernel/reboot.c b/arch/arm/kernel/reboot.c
index 3b2aa9a9fe26..2773068c0d67 100644
--- a/arch/arm/kernel/reboot.c
+++ b/arch/arm/kernel/reboot.c
@@ -140,6 +140,7 @@ void machine_restart(char *cmd)
 {
 	local_irq_disable();
 	smp_send_stop();
+	local_irq_enable();
 
 	if (arm_pm_restart)
 		arm_pm_restart(reboot_mode, cmd);
-- 
2.19.0