[PATCH v2 1/7] genirq/debugfs: Add missing IRQCHIP_SUPPORTS_LEVEL_MSI debug

From: Marc Zyngier <marc.zyngier@arm.com>
To: Thomas Gleixner <tglx@linutronix.de>,
	Jason Cooper <jason@lakedaemon.net>
Cc: linux-kernel@vger.kernel.org,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Yang Yingliang <yangyingliang@huawei.com>,
	Sumit Garg <sumit.garg@linaro.org>
Subject: [PATCH v2 1/7] genirq/debugfs: Add missing IRQCHIP_SUPPORTS_LEVEL_MSI debug
Date: Fri, 22 Jun 2018 10:52:48 +0100	[thread overview]
Message-ID: <20180622095254.5906-2-marc.zyngier@arm.com> (raw)
In-Reply-To: <20180622095254.5906-1-marc.zyngier@arm.com>

We're missing the IRQCHIP_SUPPORTS_LEVEL_MSI debug entry, making
debugfs slightly less useful. Take this opportunity to also add
a missing comment in the definition of IRQCHIP_SUPPORTS_LEVEL_MSI.

Fixes: 6988e0e0d283 ("genirq/msi: Limit level-triggered MSI to platform devices")
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
 include/linux/irq.h  | 1 +
 kernel/irq/debugfs.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 4bd2f34947f4..201de12a9957 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -503,6 +503,7 @@ struct irq_chip {
  * IRQCHIP_SKIP_SET_WAKE:	Skip chip.irq_set_wake(), for this irq chip
  * IRQCHIP_ONESHOT_SAFE:	One shot does not require mask/unmask
  * IRQCHIP_EOI_THREADED:	Chip requires eoi() on unmask in threaded mode
+ * IRQCHIP_SUPPORTS_LEVEL_MSI	Chip can provide two doorbells for Level MSIs
  */
 enum {
 	IRQCHIP_SET_TYPE_MASKED		= (1 <<  0),
diff --git a/kernel/irq/debugfs.c b/kernel/irq/debugfs.c
index 4dadeb3d6666..6f636136cccc 100644
--- a/kernel/irq/debugfs.c
+++ b/kernel/irq/debugfs.c
@@ -55,6 +55,7 @@ static const struct irq_bit_descr irqchip_flags[] = {
 	BIT_MASK_DESCR(IRQCHIP_SKIP_SET_WAKE),
 	BIT_MASK_DESCR(IRQCHIP_ONESHOT_SAFE),
 	BIT_MASK_DESCR(IRQCHIP_EOI_THREADED),
+	BIT_MASK_DESCR(IRQCHIP_SUPPORTS_LEVEL_MSI),
 };
 
 static void
-- 
2.17.1

