linux-kernel - Re: [PATCH] irqchip: Silence sparse warning

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Message-ID: <531F7765.40207@codeaurora.org>
Date:	Tue, 11 Mar 2014 13:51:49 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Jiri Kosina <jkosina@...e.cz>
CC:	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] irqchip: Silence sparse warning

On 03/10/14 06:08, Jiri Kosina wrote:
> On Tue, 4 Mar 2014, Stephen Boyd wrote:
>
>> drivers/irqchip/irqchip.c:27:13: warning: symbol 'irqchip_init'
>> was not declared. Should it be static?
>>
>> Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
> Why do we have to have drivers/irqchip/irqchip.h and 
> include/linux/irqchip.h anyway?

include/linux/irqchip.h is for irqchip_init() which is typically called
from arch layers. drivers/irqchip/irqchip.h is for irqchip drivers to
include so they can use the IRQCHIP_DECLARE macro. Perhaps you're
pointing out that the "irqchip.h" include in irqchip.c is unused? How
about this patch?

----8<----

From: Stephen Boyd <sboyd@...eaurora.org>
Subject: [PATCH] irqchip: Remove unused include

The "irqchip.h" include here is not needed as the only thing in
irqchip.h is IRQCHIP_DECLARE which this file doesn't use. Drop
it.

Reported-by: Jiri Kosina <jkosina@...e.cz>
Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
---
 drivers/irqchip/irqchip.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/irqchip/irqchip.c b/drivers/irqchip/irqchip.c
index 3469141f10f6..cad3e2495552 100644
--- a/drivers/irqchip/irqchip.c
+++ b/drivers/irqchip/irqchip.c
@@ -12,8 +12,6 @@
 #include <linux/of_irq.h>
 #include <linux/irqchip.h>
 
-#include "irqchip.h"
-
 /*
  * This special of_device_id is the sentinel at the end of the
  * of_device_id[] array of all irqchips. It is automatically placed at


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