linux-kernel - [PATCH 2/5] CRISv32: annotate irq enable in idle loop

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Message-Id: <1431621795-25722-2-git-send-email-rabin@rab.in>
Date:	Thu, 14 May 2015 18:43:12 +0200
From:	Rabin Vincent <rabin@....in>
To:	jesper.nilsson@...s.com
Cc:	linux-kernel@...r.kernel.org, linux-cris-kernel@...s.com,
	Rabin Vincent <rabin@....in>
Subject: [PATCH 2/5] CRISv32: annotate irq enable in idle loop

Use a call to local_irq_enable() instead of incline asm so that the
irqsoff latency tracer knows that interrupts are enabled here.

Signed-off-by: Rabin Vincent <rabin@....in>
---
 arch/cris/arch-v32/kernel/process.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c
index cebd32e..c7ce784 100644
--- a/arch/cris/arch-v32/kernel/process.c
+++ b/arch/cris/arch-v32/kernel/process.c
@@ -23,9 +23,9 @@ extern void stop_watchdog(void);
 /* We use this if we don't have any better idle routine. */
 void default_idle(void)
 {
+	local_irq_enable();
 	/* Halt until exception. */
-	__asm__ volatile("ei    \n\t"
-			 "halt      ");
+	__asm__ volatile("halt");
 }
 
 /*
-- 
2.1.4

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