From: John Ogness <john.ogness@linutronix.de>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] powerpc: set IRQF_NO_THREAD for xmon/cascade handlers
Date: Wed, 11 Nov 2015 14:48:50 +0100 [thread overview]
Message-ID: <874mgsoddp.fsf@linutronix.de> (raw)
The xmon and cascade irq handlers must not run as threads.
pmac_pic_lock is already a raw_spinlock, but the irq flag
IRQF_NO_THREAD needs to be set as well.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
---
arch/powerpc/platforms/powermac/pic.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 6f4f8b0..9815463 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -258,13 +258,14 @@ static unsigned int pmac_pic_get_irq(void)
#ifdef CONFIG_XMON
static struct irqaction xmon_action = {
.handler = xmon_irq,
- .flags = 0,
+ .flags = IRQF_NO_THREAD,
.name = "NMI - XMON"
};
#endif
static struct irqaction gatwick_cascade_action = {
.handler = gatwick_action,
+ .flags = IRQF_NO_THREAD,
.name = "cascade",
};
--
1.7.10.4
next reply other threads:[~2015-11-11 14:11 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-11 13:48 John Ogness [this message]
2015-11-26 12:15 ` powerpc: set IRQF_NO_THREAD for xmon/cascade handlers Michael Ellerman
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