X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fcxgbe%2Fcxgbe_compat.h;h=5d47c5f3d8b0f9db3759141cfdbdf4b5a3cc268f;hb=1ccdc31793aff57d5fe34041c7fa0aa9c00c7f5c;hp=03bba9fe5d6976a7f099d5fdde84972f63c2debd;hpb=6c2809628cd57679ac3a6c0298ecd4b11002808c;p=dpdk.git

diff --git a/drivers/net/cxgbe/cxgbe_compat.h b/drivers/net/cxgbe/cxgbe_compat.h
index 03bba9fe5d..5d47c5f3d8 100644
--- a/drivers/net/cxgbe/cxgbe_compat.h
+++ b/drivers/net/cxgbe/cxgbe_compat.h
@@ -1,34 +1,6 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2014-2017 Chelsio Communications.
- *   All rights reserved.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in
- *       the documentation and/or other materials provided with the
- *       distribution.
- *     * Neither the name of Chelsio Communications nor the names of its
- *       contributors may be used to endorse or promote products derived
- *       from this software without specific prior written permission.
- *
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2014-2018 Chelsio Communications.
+ * All rights reserved.
  */
 
 #ifndef _CXGBE_COMPAT_H_
@@ -226,15 +198,6 @@ 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;
@@ -278,4 +241,16 @@ static inline void writel_relaxed(unsigned int val, volatile void __iomem *addr)
 	rte_write32_relaxed(val, addr);
 }
 
+/*
+ * Multiplies an integer by a fraction, while avoiding unnecessary
+ * overflow or loss of precision.
+ */
+#define mult_frac(x, numer, denom)(                     \
+{                                                       \
+	typeof(x) quot = (x) / (denom);                 \
+	typeof(x) rem  = (x) % (denom);                 \
+	(quot * (numer)) + ((rem * (numer)) / (denom)); \
+}                                                       \
+)
+
 #endif /* _CXGBE_COMPAT_H_ */