From: Chris Metcalf <cmetcalf@tilera.com>
Date: Mon, 12 Aug 2013 18:57:12 +0000 (-0400)
Subject: tile: Enable interrupts in do_work_pending()
X-Git-Tag: next-20130822~108^2~15
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8cf10b4bca9e6c61b764d2e4902b7c3052643217;p=karo-tx-linux.git

tile: Enable interrupts in do_work_pending()

A recent change triggered a WARN_ON that interrupts were disabled,
and in fact other architectures enable interrupts uniformly for their
related do_work_pending() type code, and all the things we call from
this routine appear to expect interrupts to be enabled.  So, enable them.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
---

diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index 2629ff1b9195..9892f03d5361 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -550,6 +550,9 @@ int do_work_pending(struct pt_regs *regs, u32 thread_info_flags)
 	}
 #endif
 
+	/* Enable interrupts; they are disabled again on return to caller. */
+	local_irq_enable();
+
 	if (thread_info_flags & _TIF_NEED_RESCHED) {
 		schedule();
 		return 1;