From 0a0200d7ccd07e34390806c5939c6b87f30edb9a Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Sat, 25 Jun 2016 08:47:31 +1000
Subject: Add "ffs" inline function

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
---
 libc/include/string.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'libc/include')

diff --git a/libc/include/string.h b/libc/include/string.h
index 96b26fa..890ffc2 100644
--- a/libc/include/string.h
+++ b/libc/include/string.h
@@ -35,4 +35,9 @@ void *memcpy(void *dest, const void *src, size_t n);
 void *memmove(void *dest, const void *src, size_t n);
 int memcmp(const void *s1, const void *s2, size_t n);
 
+static inline int ffs(unsigned long val)
+{
+	return __builtin_ffs(val);
+}
+
 #endif
-- 
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