From 35ffe2f550feaf8ce0461b1dcc2b9021700b2604 Mon Sep 17 00:00:00 2001
From: Shaun Ruffell <sruffell@digium.com>
Date: Fri, 21 Oct 2011 19:32:25 +0000
Subject: [PATCH] dahdi: Move WARN_ON_ONCE from wctc4xxp driver to
 include/dahdi/kernel.h

I only generally test on RHEL 4 when testing against kernels older
than 2.6.18. Apparently OpenSUSE 10.1 runs with 2.6.16 and doesn't
have WARN_ON_ONCE backported. I took the patch Richard Miller
originally attached to the issue and moved it to
include/dahdi/kernel.h so it would be available for all the board
drivers in the future.

Internal-Issue-ID: DAHLIN-260
Reported-by: Richard Miller
Signed-off-by: Shaun Ruffell <sruffell@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@10252 a0bf4364-ded3-4de4-8d8a-66a801d63aff
---
 drivers/dahdi/wctc4xxp/base.c | 14 --------------
 include/dahdi/kernel.h        | 13 +++++++++++++
 2 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/drivers/dahdi/wctc4xxp/base.c b/drivers/dahdi/wctc4xxp/base.c
index 78bd09a..3bc2cd3 100644
--- a/drivers/dahdi/wctc4xxp/base.c
+++ b/drivers/dahdi/wctc4xxp/base.c
@@ -73,20 +73,6 @@
 		dev_info(&(wc)->pdev->dev, _fmt, ## _args);		\
 	}								\
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18)
-#ifndef WARN_ON_ONCE
-#define WARN_ON_ONCE(__condition) do {         \
-	static int __once = 1;                 \
-	if (unlikely(__condition)) {           \
-		if (__once) {                  \
-			__once = 0;            \
-			WARN_ON(0);            \
-		}                              \
-	}                                      \
-} while (0)
-#endif
-#endif
-
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 14)
 /* also added in RHEL kernels with the OpenInfiniband backport: */
 #if LINUX_VERSION_CODE != KERNEL_VERSION(2, 6, 9) || !defined(DEFINE_SPINLOCK)
diff --git a/include/dahdi/kernel.h b/include/dahdi/kernel.h
index c392e64..9ae9d1e 100644
--- a/include/dahdi/kernel.h
+++ b/include/dahdi/kernel.h
@@ -1380,6 +1380,19 @@ static inline void list_replace(struct list_head *old, struct list_head *new)
         new->prev = old->prev;
         new->prev->next = new;
 }
+
+#ifndef WARN_ON_ONCE
+#define WARN_ON_ONCE(__condition) do {         \
+	static int __once = 1;                 \
+	if (unlikely(__condition)) {           \
+		if (__once) {                  \
+			__once = 0;            \
+			WARN_ON(0);            \
+		}                              \
+	}                                      \
+} while (0)
+#endif
+
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 14)
 #define kzalloc(a, b) kcalloc(1, a, b)
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 12)