linux-kernel - [084/156] kfifo: fix KFIFO_INIT in include/linux/kfifo.h

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Date:	Tue, 30 Mar 2010 15:41:58 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	David HÃ€rdeman <david@...deman.nu>,
	Stefani Seibold <stefani@...bold.net>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [084/156] kfifo: fix KFIFO_INIT in include/linux/kfifo.h

2.6.33-stable review patch.  If anyone has any objections, please let us know.

------------------

From: =?UTF-8?q?David=20H=C3=A4rdeman?= <david@...deman.nu>

commit 4c87684d32e8f95715d53039dcd2d998dc63d1eb upstream.

include/linux/kfifo.h first defines and then undefines __kfifo_initializer
which is used by INIT_KFIFO (which is also a macro, so building a module
which uses INIT_KFIFO will fail).

Signed-off-by: David Härdeman <david@...deman.nu>
Acked-by: Stefani Seibold <stefani@...bold.net>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 include/linux/kfifo.h |    2 --
 1 file changed, 2 deletions(-)

--- a/include/linux/kfifo.h
+++ b/include/linux/kfifo.h
@@ -102,8 +102,6 @@ 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, void *buffer,
 			unsigned int size);
 extern __must_check int kfifo_alloc(struct kfifo *fifo, unsigned int size,


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