linux-kernel - [PATCH] add missing include in lib/rational.c

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Message-Id: <1261498310-18985-1-git-send-email-u.kleine-koenig@pengutronix.de>
Date:	Tue, 22 Dec 2009 17:11:50 +0100
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	linux-kernel@...r.kernel.org
Cc:	Oskar Schirmer <os@...ix.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] add missing include in lib/rational.c

From: Sascha Hauer <s.ha...@...gutronix.de>

This fixes:

lib/rational.c:62: warning: data definition has no type or storage class
lib/rational.c:62: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL'
lib/rational.c:62: warning: parameter names (without types) in function declaration

Signed-off-by: Sascha Hauer <s.ha...@...gutronix.de>
Acked-by: WANG Cong <xiyou.wangcong@...il.com>
Acked-by: Oskar Schirmer <os@...ix.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
Hi,

Oskar Schirmer wrote:
> > lib/rational.c:62: warning: data definition has no type or storage
> > class
> > lib/rational.c:62: warning: type defaults to 'int' in declaration of
> > 'EXPORT_SYMBOL'
> > lib/rational.c:62: warning: parameter names (without types) in
> > function declaration
>
> Oh yes, we didnt use it with modules up to now.
Note this has nothing to do if the symbol is used in modules or not.
It's just that EXPORT_SYMBOL (which publishes the symbol to the module
linker).  I havn't checked, but I assume the compiler interprets

	EXPORT_SYMBOL(rational_best_approximation);

just as declaration of a function EXPORT_SYMBOL and doesn't generate the
needed magic to actually export rational_best_approximation.

Best regards
Uwe
---
 lib/rational.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/lib/rational.c b/lib/rational.c
index b3c099b..3ed247b 100644
--- a/lib/rational.c
+++ b/lib/rational.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/rational.h>
+#include <linux/module.h>
 
 /*
  * calculate best rational approximation for a given fraction
-- 
1.6.5.2

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