From: Rusty Russell <rusty@rustcorp.com.au>
Date: Sat, 3 Jan 2009 05:49:03 +0000 (+1030)
Subject: mn10300: define __fls
X-Git-Tag: v2.6.29-rc1~521^2~10^2~1
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=5c134dad43443aa9c9606eaf47c378a6b9c5c597;p=~emulex%2Finfiniband.git

mn10300: define __fls

Like fls, but can't be handed 0 and returns the bit number.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---

diff --git a/include/asm-mn10300/bitops.h b/include/asm-mn10300/bitops.h
index cc6d40c05cf..0b610f482ab 100644
--- a/include/asm-mn10300/bitops.h
+++ b/include/asm-mn10300/bitops.h
@@ -195,6 +195,17 @@ int fls(int x)
 	return (x != 0) ? __ilog2_u32(x) + 1 : 0;
 }
 
+/**
+ * __fls - find last (most-significant) set bit in a long word
+ * @word: the word to search
+ *
+ * Undefined if no set bit exists, so code should check against 0 first.
+ */
+static inline unsigned long __fls(unsigned long word)
+{
+	return __ilog2_u32(word);
+}
+
 /**
  * ffs - find first bit set
  * @x: the word to search