linux-kernel - [PATCH] genirq: Remove the second parameter from handle_irq_event

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Date:	Wed,  2 Sep 2015 10:24:55 +0800
From:	Huang Shijie <shijie.huang@....com>
To:	tglx@...utronix.de
Cc:	jiang.liu@...ux.intel.com, peterz@...radead.org,
	marc.zyngier@....com, linux-kernel@...r.kernel.org,
	Huang Shijie <shijie.huang@....com>
Subject: [PATCH] genirq: Remove the second parameter from handle_irq_event_percpu

Actually, we always use the first irq action of the @desc->action chain,
this patch remove the second parameter from handle_irq_event_percpu() which
makes the code more tidy.

Signed-off-by: Huang Shijie <shijie.huang@....com>
---
 kernel/irq/chip.c      | 2 +-
 kernel/irq/handle.c    | 7 +++----
 kernel/irq/internals.h | 2 +-
 3 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 6e40a95..27e4833 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -680,7 +680,7 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 	if (chip->irq_ack)
 		chip->irq_ack(&desc->irq_data);
 
-	handle_irq_event_percpu(desc, desc->action);
+	handle_irq_event_percpu(desc);
 
 	if (chip->irq_eoi)
 		chip->irq_eoi(&desc->irq_data);
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index b6eeea8..bc2f892 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -130,11 +130,11 @@ void __irq_wake_thread(struct irq_desc *desc, struct irqaction *action)
 	wake_up_process(action->thread);
 }
 
-irqreturn_t
-handle_irq_event_percpu(struct irq_desc *desc, struct irqaction *action)
+irqreturn_t handle_irq_event_percpu(struct irq_desc *desc)
 {
 	irqreturn_t retval = IRQ_NONE;
 	unsigned int flags = 0, irq = desc->irq_data.irq;
+	struct irqaction *action = desc->action;
 
 	do {
 		irqreturn_t res;
@@ -182,14 +182,13 @@ handle_irq_event_percpu(struct irq_desc *desc, struct irqaction *action)
 
 irqreturn_t handle_irq_event(struct irq_desc *desc)
 {
-	struct irqaction *action = desc->action;
 	irqreturn_t ret;
 
 	desc->istate &= ~IRQS_PENDING;
 	irqd_set(&desc->irq_data, IRQD_IRQ_INPROGRESS);
 	raw_spin_unlock(&desc->lock);
 
-	ret = handle_irq_event_percpu(desc, action);
+	ret = handle_irq_event_percpu(desc);
 
 	raw_spin_lock(&desc->lock);
 	irqd_clear(&desc->irq_data, IRQD_IRQ_INPROGRESS);
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index eee4b38..1be888c 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -81,7 +81,7 @@ extern void irq_mark_irq(unsigned int irq);
 
 extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr);
 
-irqreturn_t handle_irq_event_percpu(struct irq_desc *desc, struct irqaction *action);
+irqreturn_t handle_irq_event_percpu(struct irq_desc *desc);
 irqreturn_t handle_irq_event(struct irq_desc *desc);
 
 /* Resending of interrupts :*/
-- 
2.1.4

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