linux-kernel - [tip:irq/core] s390: Cio: Use the core irq stats function

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Date:	Tue, 4 Mar 2014 08:42:13 -0800
From:	tip-bot for Thomas Gleixner <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	schwidefsky@...ibm.com, peterz@...radead.org,
	linux-s390@...r.kernel.org, tglx@...utronix.de
Subject: [tip:irq/core] s390: Cio: Use the core irq stats function

Commit-ID:  bc5dfcff65f24f15567f766d8bd081d594ef8cc2
Gitweb:     http://git.kernel.org/tip/bc5dfcff65f24f15567f766d8bd081d594ef8cc2
Author:     Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Sun, 23 Feb 2014 21:40:17 +0000
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Tue, 4 Mar 2014 17:37:54 +0100

s390: Cio: Use the core irq stats function

Let the core do the irq_desc resolution.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: s390 <linux-s390@...r.kernel.org>
Link: http://lkml.kernel.org/r/20140223212737.983433636@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 drivers/s390/cio/cio.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 8ee88c4..f711f0b 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -584,8 +584,6 @@ static irqreturn_t do_cio_interrupt(int irq, void *dummy)
 	return IRQ_HANDLED;
 }
 
-static struct irq_desc *irq_desc_io;
-
 static struct irqaction io_interrupt = {
 	.name	 = "IO",
 	.handler = do_cio_interrupt,
@@ -596,7 +594,6 @@ void __init init_cio_interrupts(void)
 	irq_set_chip_and_handler(IO_INTERRUPT,
 				 &dummy_irq_chip, handle_percpu_irq);
 	setup_irq(IO_INTERRUPT, &io_interrupt);
-	irq_desc_io = irq_to_desc(IO_INTERRUPT);
 }
 
 #ifdef CONFIG_CCW_CONSOLE
@@ -623,7 +620,7 @@ void cio_tsch(struct subchannel *sch)
 		local_bh_disable();
 		irq_enter();
 	}
-	kstat_incr_irqs_this_cpu(IO_INTERRUPT, irq_desc_io);
+	kstat_incr_irq_this_cpu(IO_INTERRUPT);
 	if (sch->driver && sch->driver->irq)
 		sch->driver->irq(sch);
 	else
--
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