linux-kernel - [PATCH] new kfifo API: undef temporary defines

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Date:	Thu, 26 Nov 2009 16:53:54 +0100
From:	Stefani Seibold <stefani@...bold.net>
To:	linux-kernel <linux-kernel@...r.kernel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Arnd Bergmann <arnd@...db.de>,
	Andi Kleen <andi@...stfloor.org>,
	Amerigo Wang <xiyou.wangcong@...il.com>,
	Joe Perches <joe@...ches.com>,
	Roger Quadros <quadros.roger@...il.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Mauro Carvalho Chehab <mchehab@...hat.com>
Subject: [PATCH] new kfifo API: undef temporary defines

The following patch undef temporary used defines after the last usage.

The patch-set is against kfifo API v.07, which is currently included in
the -mm tree

Signed-off-by: Stefani Seibold <stefani@...bold.net>
---
 kfifo.h |    5 +++++
 1 file changed, 5 insertions(+)

diff -u -N -r -p kfifo7/include/linux/kfifo.h kfifo8/include/linux/kfifo.h
--- kfifo7/include/linux/kfifo.h	2009-11-19 20:55:16.596339811 +0100
+++ kfifo8/include/linux/kfifo.h	2009-11-26 16:46:48.826439335 +0100
@@ -55,6 +55,7 @@ struct kfifo {
  * Macros for declaration and initialization of the kfifo datatype
  */
 
+/* helper macro */
 #define __kfifo_initializer(s, b) \
 	(struct kfifo) { \
 		.size	= s, \
@@ -102,6 +103,8 @@ union { \
 	unsigned char name##kfifo_buffer[size]; \
 	struct kfifo name = __kfifo_initializer(size, name##kfifo_buffer)
 
+#undef __kfifo_initializer
+
 extern void kfifo_init(struct kfifo *fifo, unsigned char *buffer,
 			unsigned int size);
 extern __must_check int kfifo_alloc(struct kfifo *fifo, unsigned int size,
@@ -293,6 +296,7 @@ static inline unsigned int __kfifo_peek_
 		l |= __KFIFO_GET(fifo, 1, 8);
 
 	return l;
+#undef	__KFIFO_GET
 }
 
 /**
@@ -312,6 +316,7 @@ static inline void __kfifo_poke_n(struct
 
 	if (--recsize)
 		__KFIFO_PUT(fifo, 1, n, 8);
+#undef	__KFIFO_PUT
 }
 
 /**


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