linux-kernel - [PATCH] arch/tile: enable interrupts in do_work

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Message-ID: <201210121944.q9CJiOuS012397@farm-0012.internal.tilera.com>
Date:	Fri, 12 Oct 2012 15:38:54 -0400
From:	Chris Metcalf <cmetcalf@...era.com>
To:	<linux-kernel@...r.kernel.org>
Subject: [PATCH] arch/tile: enable interrupts in do_work_pending()

All the called functions expect interrupts to be enabled, and
now one of them has started to warn about it, so make it correct.

Signed-off-by: Chris Metcalf <cmetcalf@...era.com>
---
 arch/tile/kernel/process.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index 6be7991..4f1a241 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -548,6 +548,9 @@ int do_work_pending(struct pt_regs *regs, u32 thread_info_flags)
 	if (!user_mode(regs))
 		return 0;
 
+	/* Enable interrupts; they are disabled again on return to caller. */
+	local_irq_enable();
+
 	if (thread_info_flags & _TIF_NEED_RESCHED) {
 		schedule();
 		return 1;
-- 
1.7.10.3

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