linux-kernel - [PATCH] set_irq_chip() has redundant call to irq_to

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Date:	Fri, 5 Sep 2008 09:10:40 -0500
From:	Dean Nelson <dcn@....com>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>
Cc:	Yinghai Lu <yhlu.kernel@...il.com>, linux-kernel@...r.kernel.org
Subject: [PATCH] set_irq_chip() has redundant call to irq_to_desc()

Extraneous call to irq_to_desc().

Signed-off-by: Dean Nelson <dcn@....com>

---

 kernel/irq/chip.c |    1 -
 1 file changed, 1 deletion(-)

Index: linux/kernel/irq/chip.c
===================================================================
--- linux.orig/kernel/irq/chip.c	2008-09-05 08:04:21.000000000 -0500
+++ linux/kernel/irq/chip.c	2008-09-05 08:16:58.000000000 -0500
@@ -102,7 +102,6 @@ int set_irq_chip(unsigned int irq, struc
 	if (!chip)
 		chip = &no_irq_chip;
 
-	desc = irq_to_desc(irq);
 	spin_lock_irqsave(&desc->lock, flags);
 	irq_chip_set_defaults(chip);
 	desc->chip = chip;
--
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