From 5c134dad43443aa9c9606eaf47c378a6b9c5c597 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Sat, 3 Jan 2009 16:19:03 +1030
Subject: [PATCH] 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>
---
include/asm-mn10300/bitops.h | 11 +++++++++++
1 file changed, 11 insertions(+)
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
--
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