linux-kernel - [PATCH 3/9] irq/manage: remove some unreferenced code

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Date:   Wed, 20 Apr 2022 22:05:15 +0800
From:   Pingfan Liu <kernelfans@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Pingfan Liu <kernelfans@...il.com>,
        Miguel Ojeda <ojeda@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>, Marc Zyngier <maz@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Cédric Le Goater <clg@...d.org>,
        llvm@...ts.linux.dev
Subject: [PATCH 3/9] irq/manage: remove some unreferenced code

Neither remove_percpu_irq() nor for_each_irq_nr() has any users, so they
can be removed.

Signed-off-by: Pingfan Liu <kernelfans@...il.com>
Cc: Miguel Ojeda <ojeda@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Nathan Chancellor <nathan@...nel.org>
Cc: Nick Desaulniers <ndesaulniers@...gle.com>
Cc: Tom Rix <trix@...hat.com>
Cc: Marc Zyngier <maz@...nel.org>
Cc: Florian Fainelli <f.fainelli@...il.com>
Cc: Bartosz Golaszewski <brgl@...ev.pl>
Cc: "Cédric Le Goater" <clg@...d.org>
Cc: llvm@...ts.linux.dev
To: linux-kernel@...r.kernel.org
---
 .clang-format         |  1 -
 include/linux/irq.h   |  1 -
 include/linux/irqnr.h |  3 ---
 kernel/irq/manage.c   | 15 ---------------
 4 files changed, 20 deletions(-)

diff --git a/.clang-format b/.clang-format
index fa959436bcfd..fb161bc8ca1a 100644
--- a/.clang-format
+++ b/.clang-format
@@ -198,7 +198,6 @@ ForEachMacros:
   - 'for_each_if'
   - 'for_each_iommu'
   - 'for_each_ip_tunnel_rcu'
-  - 'for_each_irq_nr'
   - 'for_each_link_codecs'
   - 'for_each_link_cpus'
   - 'for_each_link_platforms'
diff --git a/include/linux/irq.h b/include/linux/irq.h
index f92788ccdba2..ec50007decfc 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -603,7 +603,6 @@ enum {
 
 struct irqaction;
 extern int setup_percpu_irq(unsigned int irq, struct irqaction *new);
-extern void remove_percpu_irq(unsigned int irq, struct irqaction *act);
 
 #ifdef CONFIG_DEPRECATED_IRQ_CPU_ONOFFLINE
 extern void irq_cpu_online(void);
diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h
index 3496baa0b07f..082fe0856e87 100644
--- a/include/linux/irqnr.h
+++ b/include/linux/irqnr.h
@@ -28,7 +28,4 @@ unsigned int irq_get_next_irq(unsigned int offset);
 	for (irq = irq_get_next_irq(0); irq < nr_irqs;	\
 	     irq = irq_get_next_irq(irq + 1))
 
-#define for_each_irq_nr(irq)                   \
-       for (irq = 0; irq < nr_irqs; irq++)
-
 #endif
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index c03f71d5ec10..b7c86be68b58 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -2466,21 +2466,6 @@ 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
-- 
2.31.1