linux-kernel - [PATCH 3/3] genirq: Remove setup_percpu_irq() and remove_percpu

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Date:   Sat, 11 Apr 2020 21:35:16 +0530
From:   afzal mohammed <afzal.mohd.ma@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] genirq: Remove setup_percpu_irq() and remove_percpu_irq()

Only users of setup_percpu_irq() were in MIPS, they have been converted
to use request_percpu_irq() variants. Also remove_percpu_irq() have no
users.

Hence remove setup_percpu_irq() as well as remove_percpu_irq().

Signed-off-by: afzal mohammed <afzal.mohd.ma@...il.com>
---
 include/linux/irq.h |  2 --
 kernel/irq/manage.c | 42 ------------------------------------------
 2 files changed, 44 deletions(-)

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 29f5bad87eb3..156995ab5d6e 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -560,8 +560,6 @@ enum {
 #define IRQ_DEFAULT_INIT_FLAGS	ARCH_IRQ_INIT_FLAGS
 
 struct irqaction;
-extern int setup_percpu_irq(unsigned int irq, struct irqaction *new);
-extern void remove_percpu_irq(unsigned int irq, struct irqaction *act);
 
 extern void irq_cpu_online(void);
 extern void irq_cpu_offline(void);
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index aa03b64605d3..22aaa6895c42 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -2324,21 +2324,6 @@ static struct irqaction *__free_percpu_irq(unsigned int irq, void __percpu *dev_
 	return NULL;
 }
 
-/**
- *	remove_percpu_irq - free a per-cpu interrupt
- *	@irq: Interrupt line to free
- *	@act: irqaction for the interrupt
- *
- * Used to remove interrupts statically setup by the early boot process.
- */
-void remove_percpu_irq(unsigned int irq, struct irqaction *act)
-{
-	struct irq_desc *desc = irq_to_desc(irq);
-
-	if (desc && irq_settings_is_per_cpu_devid(desc))
-	    __free_percpu_irq(irq, act->percpu_dev_id);
-}
-
 /**
  *	free_percpu_irq - free an interrupt allocated with request_percpu_irq
  *	@irq: Interrupt line to free
@@ -2377,33 +2362,6 @@ void free_percpu_nmi(unsigned int irq, void __percpu *dev_id)
 	kfree(__free_percpu_irq(irq, dev_id));
 }
 
-/**
- *	setup_percpu_irq - setup a per-cpu interrupt
- *	@irq: Interrupt line to setup
- *	@act: irqaction for the interrupt
- *
- * Used to statically setup per-cpu interrupts in the early boot process.
- */
-int setup_percpu_irq(unsigned int irq, struct irqaction *act)
-{
-	struct irq_desc *desc = irq_to_desc(irq);
-	int retval;
-
-	if (!desc || !irq_settings_is_per_cpu_devid(desc))
-		return -EINVAL;
-
-	retval = irq_chip_pm_get(&desc->irq_data);
-	if (retval < 0)
-		return retval;
-
-	retval = __setup_irq(irq, desc, act);
-
-	if (retval)
-		irq_chip_pm_put(&desc->irq_data);
-
-	return retval;
-}
-
 /**
  *	__request_percpu_irq - allocate a percpu interrupt line
  *	@irq: Interrupt line to allocate
-- 
2.18.0