linux-kernel - [PATCH 1/1] irq: add IRQF_TRIGGER

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Date:   Thu, 30 Mar 2017 19:46:08 +0000
From:   Aniruddha Banerjee <aniruddhab@...dia.com>
To:     "tglx@...utronix.de" <tglx@...utronix.de>,
        Jonathan Hunter <jonathanh@...dia.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Thierry Reding" <treding@...dia.com>,
        Stephen Warren <swarren@...dia.com>
Subject: [PATCH 1/1] irq: add IRQF_TRIGGER_MASK on PPI by default

add IRQF_TRIGGER_MASK on PPI by default so that the PPIs are
not configured as edge-triggered, which may be wrong for certain GIC
implementations such as the GIC-400

Signed-off-by: Aniruddha Banerjee <aniruddhab@...dia.com>
---
 kernel/irq/manage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 6b669593e7eb..9b2983cf9fd3 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1982,7 +1982,7 @@ int request_percpu_irq(unsigned int irq, irq_handler_t handler,
 		return -ENOMEM;
 
 	action->handler = handler;
-	action->flags = IRQF_PERCPU | IRQF_NO_SUSPEND;
+	action->flags = IRQF_PERCPU | IRQF_NO_SUSPEND | IRQF_TRIGGER_MASK;
 	action->name = devname;
 	action->percpu_dev_id = dev_id;
 
-- 
2.11.0