linux-kernel - [PATCH 03/12] irqchip: i8259: Remove unused i8259A_irq

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Date:   Fri, 2 Sep 2016 16:48:49 +0100
From:   Paul Burton <paul.burton@...tec.com>
To:     <linux-mips@...ux-mips.org>, Ralf Baechle <ralf@...ux-mips.org>
CC:     Paul Burton <paul.burton@...tec.com>,
        Jason Cooper <jason@...edaemon.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        <linux-kernel@...r.kernel.org>, Marc Zyngier <marc.zyngier@....com>
Subject: [PATCH 03/12] irqchip: i8259: Remove unused i8259A_irq_pending

The i8259A_irq_pending function is unused. Remove the dead code.

Signed-off-by: Paul Burton <paul.burton@...tec.com>
---

 arch/mips/include/asm/i8259.h |  1 -
 drivers/irqchip/irq-i8259.c   | 18 ------------------
 2 files changed, 19 deletions(-)

diff --git a/arch/mips/include/asm/i8259.h b/arch/mips/include/asm/i8259.h
index b27fcc4..32229c7 100644
--- a/arch/mips/include/asm/i8259.h
+++ b/arch/mips/include/asm/i8259.h
@@ -37,7 +37,6 @@
 
 extern raw_spinlock_t i8259A_lock;
 
-extern int i8259A_irq_pending(unsigned int irq);
 extern void make_8259A_irq(unsigned int irq);
 
 extern void init_i8259_irqs(void);
diff --git a/drivers/irqchip/irq-i8259.c b/drivers/irqchip/irq-i8259.c
index 1f4a344..1aec12c 100644
--- a/drivers/irqchip/irq-i8259.c
+++ b/drivers/irqchip/irq-i8259.c
@@ -95,24 +95,6 @@ static void enable_8259A_irq(struct irq_data *d)
 	raw_spin_unlock_irqrestore(&i8259A_lock, flags);
 }
 
-int i8259A_irq_pending(unsigned int irq)
-{
-	unsigned int mask;
-	unsigned long flags;
-	int ret;
-
-	irq -= I8259A_IRQ_BASE;
-	mask = 1 << irq;
-	raw_spin_lock_irqsave(&i8259A_lock, flags);
-	if (irq < 8)
-		ret = inb(PIC_MASTER_CMD) & mask;
-	else
-		ret = inb(PIC_SLAVE_CMD) & (mask >> 8);
-	raw_spin_unlock_irqrestore(&i8259A_lock, flags);
-
-	return ret;
-}
-
 void make_8259A_irq(unsigned int irq)
 {
 	disable_irq_nosync(irq);
-- 
2.9.3