New upstream version 17.08

[deb_dpdk.git] / drivers / net / cxgbe / cxgbe_compat.h

diff --git a/drivers/net/cxgbe/cxgbe_compat.h b/drivers/net/cxgbe/cxgbe_compat.h
index 1551cbf..03bba9f 100644 (file)
--- a/drivers/net/cxgbe/cxgbe_compat.h
+++ b/drivers/net/cxgbe/cxgbe_compat.h
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2014-2015 Chelsio Communications.
+ *   Copyright(c) 2014-2017 Chelsio Communications.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -226,6 +226,15 @@ static inline int cxgbe_fls(int x)
        return x ? sizeof(x) * 8 - __builtin_clz(x) : 0;
 }
 
+/**
+ * cxgbe_ffs - find first bit set
+ * @x: the word to search
+ */
+static inline int cxgbe_ffs(int x)
+{
+       return x ? __builtin_ffs(x) : 0;
+}
+
 static inline unsigned long ilog2(unsigned long n)
 {
        unsigned int e = 0;