diff --git a/sys/compat/linuxkpi/common/include/net/ipv6.h b/sys/compat/linuxkpi/common/include/net/ipv6.h
index 3eb6051035af..37c30ed6e793 100644
--- a/sys/compat/linuxkpi/common/include/net/ipv6.h
+++ b/sys/compat/linuxkpi/common/include/net/ipv6.h
@@ -1,113 +1,114 @@
 /*-
  * Copyright (c) 2010 Isilon Systems, Inc.
  * Copyright (c) 2010 iX Systems, Inc.
  * Copyright (c) 2010 Panasas, Inc.
  * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice unmodified, this list of conditions, and the following
  *    disclaimer.
  * 2. 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.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
  *
  * $FreeBSD$
  */
 #ifndef _LINUX_NET_IPV6_H_
 #define	_LINUX_NET_IPV6_H_
 
 #include <sys/types.h>
 #include <netinet/in.h>
 #include <linux/types.h>
+#include <linux/bitops.h>
 
 #define	IPV6_DEFAULT_HOPLIMIT 64
 
 #define	ipv6_addr_loopback(addr) IN6_IS_ADDR_LOOPBACK(addr)
 #define	ipv6_addr_any(addr) IN6_IS_ADDR_UNSPECIFIED(addr)
 
 #define	ipv6_addr_copy(dst, src)			\
 	memcpy((dst), (src), sizeof(struct in6_addr))
 
 static inline void
 ipv6_ib_mc_map(const struct in6_addr *addr, const unsigned char *broadcast,
     char *buf)
 {
 	unsigned char scope;
 
 	scope = broadcast[5] & 0xF;
 	buf[0]  = 0;
 	buf[1]  = 0xff;
 	buf[2]  = 0xff;
 	buf[3]  = 0xff;
 	buf[4]  = 0xff;
 	buf[5]  = 0x10 | scope;
 	buf[6]  = 0x60;
 	buf[7]  = 0x1b;
 	buf[8]  = broadcast[8];
 	buf[9]  = broadcast[9];
 	memcpy(&buf[10], &addr->s6_addr[6], 10);
 }
 
 static inline void __ipv6_addr_set_half(__be32 *addr, __be32 wh, __be32 wl)
 {
 #if BITS_PER_LONG == 64
 #if defined(__BIG_ENDIAN)
 	if (__builtin_constant_p(wh) && __builtin_constant_p(wl)) {
 		*(__force u64 *)addr = ((__force u64)(wh) << 32 | (__force u64)(wl));
 		return;
 	}
 #elif defined(__LITTLE_ENDIAN)
 	if (__builtin_constant_p(wl) && __builtin_constant_p(wh)) {
 		*(__force u64 *)addr = ((__force u64)(wl) << 32 | (__force u64)(wh));
 		return;
 	}
 #endif
 #endif
 	addr[0] = wh;
 	addr[1] = wl;
 }
 
 static inline void ipv6_addr_set(struct in6_addr *addr,
 				     __be32 w1, __be32 w2,
 				     __be32 w3, __be32 w4)
 {
 	__ipv6_addr_set_half(&addr->s6_addr32[0], w1, w2);
 	__ipv6_addr_set_half(&addr->s6_addr32[2], w3, w4);
 }
 
 static inline void ipv6_addr_set_v4mapped(const __be32 addr,
 					  struct in6_addr *v4mapped)
 {
 	ipv6_addr_set(v4mapped,
 			0, 0,
 			htonl(0x0000FFFF),
 			addr);
 }
 
 static inline int ipv6_addr_v4mapped(const struct in6_addr *a)
 {
 	return ((a->s6_addr32[0] | a->s6_addr32[1] |
 		(a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0);
 }
 
 static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr *a2)
 {
 	return memcmp(a1, a2, sizeof(struct in6_addr));
 }
 
 #endif	/* _LINUX_NET_IPV6_H_ */