From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Wed, 21 Sep 2011 17:04:24 +0000 (+0200)
Subject: compat: add lower_32_bits
X-Git-Tag: compat-2011-09-28~2
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=8331446ead4dd43ffffbe0c8db16c5103d8a8c28;p=~tnikolova%2Fcompat%2F.git

compat: add lower_32_bits

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---

diff --git a/include/linux/compat-2.6.27.h b/include/linux/compat-2.6.27.h
index ed2035c..22fadcd 100644
--- a/include/linux/compat-2.6.27.h
+++ b/include/linux/compat-2.6.27.h
@@ -250,6 +250,12 @@ static inline __u32 ethtool_cmd_speed(const struct ethtool_cmd *ep)
 	return ep->speed;
 }
 
+/**
+ * lower_32_bits - return bits 0-31 of a number
+ * @n: the number we're accessing
+ */
+#define lower_32_bits(n) ((u32)(n))
+
 #endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)) */
 
 #endif /* LINUX_26_27_COMPAT_H */