linux-kernel - [tip: irq/core] irqdomain: Make irq_domain_reset_irq_data() available to non-hierarchical users

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Date:   Sat, 30 May 2020 07:46:38 -0000
From:   "tip-bot2 for Bartosz Golaszewski" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Marc Zyngier <maz@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: irq/core] irqdomain: Make irq_domain_reset_irq_data() available
 to non-hierarchical users

The following commit has been merged into the irq/core branch of tip:

Commit-ID:     5c8f77a278737a6af44a892f0700d9aadb2b0de0
Gitweb:        https://git.kernel.org/tip/5c8f77a278737a6af44a892f0700d9aadb2b0de0
Author:        Bartosz Golaszewski <bgolaszewski@...libre.com>
AuthorDate:    Thu, 14 May 2020 10:39:00 +02:00
Committer:     Marc Zyngier <maz@...nel.org>
CommitterDate: Mon, 18 May 2020 10:29:26 +01:00

irqdomain: Make irq_domain_reset_irq_data() available to  non-hierarchical users

irq_domain_reset_irq_data() doesn't modify the parent data, so it can be
made available even if irq domain hierarchy is not being built. We'll
subsequently use it in irq_sim code.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
Signed-off-by: Marc Zyngier <maz@...nel.org>
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
Link: https://lore.kernel.org/r/20200514083901.23445-2-brgl@bgdev.pl
---
 include/linux/irqdomain.h |  2 +-
 kernel/irq/irqdomain.c    | 24 ++++++++++++------------
 2 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 8d062e8..b37350c 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -450,6 +450,7 @@ extern void irq_domain_set_info(struct irq_domain *domain, unsigned int virq,
 				irq_hw_number_t hwirq, struct irq_chip *chip,
 				void *chip_data, irq_flow_handler_t handler,
 				void *handler_data, const char *handler_name);
+extern void irq_domain_reset_irq_data(struct irq_data *irq_data);
 #ifdef	CONFIG_IRQ_DOMAIN_HIERARCHY
 extern struct irq_domain *irq_domain_create_hierarchy(struct irq_domain *parent,
 			unsigned int flags, unsigned int size,
@@ -491,7 +492,6 @@ extern int irq_domain_set_hwirq_and_chip(struct irq_domain *domain,
 					 irq_hw_number_t hwirq,
 					 struct irq_chip *chip,
 					 void *chip_data);
-extern void irq_domain_reset_irq_data(struct irq_data *irq_data);
 extern void irq_domain_free_irqs_common(struct irq_domain *domain,
 					unsigned int virq,
 					unsigned int nr_irqs);
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 35b8d97..e2aa128 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -1047,6 +1047,18 @@ int irq_domain_alloc_descs(int virq, unsigned int cnt, irq_hw_number_t hwirq,
 	return virq;
 }
 
+/**
+ * irq_domain_reset_irq_data - Clear hwirq, chip and chip_data in @irq_data
+ * @irq_data:	The pointer to irq_data
+ */
+void irq_domain_reset_irq_data(struct irq_data *irq_data)
+{
+	irq_data->hwirq = 0;
+	irq_data->chip = &no_irq_chip;
+	irq_data->chip_data = NULL;
+}
+EXPORT_SYMBOL_GPL(irq_domain_reset_irq_data);
+
 #ifdef	CONFIG_IRQ_DOMAIN_HIERARCHY
 /**
  * irq_domain_create_hierarchy - Add a irqdomain into the hierarchy
@@ -1248,18 +1260,6 @@ void irq_domain_set_info(struct irq_domain *domain, unsigned int virq,
 EXPORT_SYMBOL(irq_domain_set_info);
 
 /**
- * irq_domain_reset_irq_data - Clear hwirq, chip and chip_data in @irq_data
- * @irq_data:	The pointer to irq_data
- */
-void irq_domain_reset_irq_data(struct irq_data *irq_data)
-{
-	irq_data->hwirq = 0;
-	irq_data->chip = &no_irq_chip;
-	irq_data->chip_data = NULL;
-}
-EXPORT_SYMBOL_GPL(irq_domain_reset_irq_data);
-
-/**
  * irq_domain_free_irqs_common - Clear irq_data and free the parent
  * @domain:	Interrupt domain to match
  * @virq:	IRQ number to start with