linux-kernel - [PATCH] genirq: Refactor actions_show loop block using a common macro to go through the actions list

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Date:   Fri, 8 Apr 2022 17:09:05 +0900
From:   Paran Lee <p4ranlee@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     linux-kernel@...r.kernel.org, Craig Gallek <kraig@...gle.com>,
        Austin Kim <austindh.kim@...il.com>
Subject: [PATCH] genirq: Refactor actions_show loop block using a common
 macro to go through the actions list

Since we have a macro defined in our IRQ subsystem internal functions to traverse the list of actions, how about refactoring this loop?
- genirq: Use a common macro to go through the actions list (f944b5a7aff05a244a6c8cac297819af09a199e4)

Signed-off-by: Paran Lee <p4ranlee@...il.com>
---
 kernel/irq/irqdesc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 939d21cd55c3..34a0cefff712 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -246,12 +246,12 @@ static ssize_t actions_show(struct kobject *kobj,
 			    struct kobj_attribute *attr, char *buf)
 {
 	struct irq_desc *desc = container_of(kobj, struct irq_desc, kobj);
-	struct irqaction *action;
+	struct irqaction *action = NULL;
 	ssize_t ret = 0;
 	char *p = "";
 
 	raw_spin_lock_irq(&desc->lock);
-	for (action = desc->action; action != NULL; action = action->next) {
+	for_each_action_of_desc(desc, action) {
 		ret += scnprintf(buf + ret, PAGE_SIZE - ret, "%s%s",
 				 p, action->name);
 		p = ",";
-- 
2.25.1