Commit b789ad63 authored Jul 19, 2012 by Yong Zhang Committed by Ralf Baechle Jul 19, 2012

MIPS: smp: Warn on too early irq enable



Just to catch a potential issue.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: David Daney <david.daney@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/3852/


Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

parent b9a09a06

arch/mips/kernel/smp.c

+5 −0

Original line number	Original line	Diff line number	Diff line
	@@ -130,6 +130,11 @@ asmlinkage __cpuinit void start_secondary(void)

	synchronise_count_slave();		synchronise_count_slave();

			/*
			* irq will be enabled in ->smp_finish(), enabling it too early
			* is dangerous.
			*/
			WARN_ON_ONCE(!irqs_disabled());
	mp_ops->smp_finish();		mp_ops->smp_finish();

	cpu_idle();		cpu_idle();