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Message-Id: <1395178858-27343-2-git-send-email-sebastian.capella@linaro.org>
Date: Tue, 18 Mar 2014 14:40:57 -0700
From: Sebastian Capella <sebastian.capella@...aro.org>
To: linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
linaro-kernel@...ts.linaro.org,
linux-arm-kernel@...ts.infradead.org
Cc: Sebastian Capella <sebastian.capella@...aro.org>,
Russell King <linux@....linux.org.uk>,
Andrew Morton <akpm@...ux-foundation.org>,
Will Deacon <will.deacon@....com>, Robin Holt <holt@....com>,
Thomas Gleixner <tglx@...utronix.de>,
Konstantin Khlebnikov <k.khlebnikov@...sung.com>,
Steven Capper <steve.capper@...aro.org>,
Stephen Warren <swarren@...dia.com>, Tejun Heo <tj@...nel.org>
Subject: [PATCH v9 1/2] ARM: avoid tracers in soft_restart
Use of tracers in local_irq_disable is causes abort loops when called
with irqs disabled using a temporary stack. Replace local_irq_disable
with raw_local_irq_disable instead to avoid tracers.
Signed-off-by: Sebastian Capella <sebastian.capella@...aro.org>
Cc: Russell King <linux@....linux.org.uk>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Will Deacon <will.deacon@....com>
Cc: Robin Holt <holt@....com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Konstantin Khlebnikov <k.khlebnikov@...sung.com>
Cc: Steven Capper <steve.capper@...aro.org>
Cc: Stephen Warren <swarren@...dia.com>
Cc: Tejun Heo <tj@...nel.org>
---
arch/arm/kernel/process.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 92f7b15..f58b723 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -100,7 +100,7 @@ void soft_restart(unsigned long addr)
u64 *stack = soft_restart_stack + ARRAY_SIZE(soft_restart_stack);
/* Disable interrupts first */
- local_irq_disable();
+ raw_local_irq_disable();
local_fiq_disable();
/* Disable the L2 if we're the last man standing. */
--
1.7.9.5
--
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