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[RFC PATCH v2 1/2] genirq: Set irq masked state by default

Started byJeffy Chen <jeffy.chen@rock-chips.com>
First post2017-06-26 13:40 +0200
Last post2017-06-26 16:10 +0200
Articles 2 — 2 participants

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  [RFC PATCH v2 1/2] genirq: Set irq masked state by default Jeffy Chen <jeffy.chen@rock-chips.com> - 2017-06-26 13:40 +0200
    [tip:irq/core] genirq: Set irq masked state when initializing  irq_desc tip-bot for Jeffy Chen <tipbot@zytor.com> - 2017-06-26 16:10 +0200

#1674642 — [RFC PATCH v2 1/2] genirq: Set irq masked state by default

FromJeffy Chen <jeffy.chen@rock-chips.com>
Date2017-06-26 13:40 +0200
Subject[RFC PATCH v2 1/2] genirq: Set irq masked state by default
Message-ID<tWAx4-1L4-5@gated-at.bofh.it>
We are setting irq default state to disabled when allocating irq desc,
so set it masked there too.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
---

Changes in v2: None

 kernel/irq/irqdesc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index c5bbaed..f1248ee 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -105,6 +105,7 @@ static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node,
 	desc->irq_data.chip_data = NULL;
 	irq_settings_clr_and_set(desc, ~0, _IRQ_DEFAULT_INIT_FLAGS);
 	irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED);
+	irqd_set(&desc->irq_data, IRQD_IRQ_MASKED);
 	desc->handle_irq = handle_bad_irq;
 	desc->depth = 1;
 	desc->irq_count = 0;
-- 
2.1.4

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#1674805 — [tip:irq/core] genirq: Set irq masked state when initializing irq_desc

Fromtip-bot for Jeffy Chen <tipbot@zytor.com>
Date2017-06-26 16:10 +0200
Subject[tip:irq/core] genirq: Set irq masked state when initializing irq_desc
Message-ID<tWCSe-3mD-1@gated-at.bofh.it>
In reply to#1674642
Commit-ID:  d829b8fb2431595422289cfc210f0a955a8bec74
Gitweb:     http://git.kernel.org/tip/d829b8fb2431595422289cfc210f0a955a8bec74
Author:     Jeffy Chen <jeffy.chen@rock-chips.com>
AuthorDate: Mon, 26 Jun 2017 19:33:33 +0800
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Mon, 26 Jun 2017 14:05:41 +0200

genirq: Set irq masked state when initializing irq_desc

The irq default state is set to disabled when allocating irq desc, but the
masked state flag is not set. This is inconsistent vs. the state tracking
logic which is used to prevent unnecessary calls to hardware level irq chip
functions.

Set the masked state flag as well.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: tfiga@chromium.org
Cc: briannorris@chromium.org
Cc: dianders@chromium.org
Link: http://lkml.kernel.org/r/1498476814-12563-1-git-send-email-jeffy.chen@rock-chips.com

---
 kernel/irq/irqdesc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 35a95fa..948b50e 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -116,6 +116,7 @@ static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node,
 	desc->irq_data.chip_data = NULL;
 	irq_settings_clr_and_set(desc, ~0, _IRQ_DEFAULT_INIT_FLAGS);
 	irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED);
+	irqd_set(&desc->irq_data, IRQD_IRQ_MASKED);
 	desc->handle_irq = handle_bad_irq;
 	desc->depth = 1;
 	desc->irq_count = 0;

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