netdev - [PATCH net] ipv6: fix IPV6

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Date:	Mon, 10 Nov 2014 17:54:25 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>,
	Hannes Frederic Sowa <hannes@...essinduktion.org>
Subject: [PATCH net] ipv6: fix IPV6_PKTINFO with v4 mapped

From: Eric Dumazet <edumazet@...gle.com>

Use IS_ENABLED(CONFIG_IPV6), to enable this code if IPv6 is
a module.

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
Fixes: c8e6ad0829a7 ("ipv6: honor IPV6_PKTINFO with v4 mapped addresses on sendmsg")
---
 net/ipv4/ip_sockglue.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 21894df662622bcb0f4bec01a2e612480276b92b..b7826575d2154dc67934d47adf90c7cd0fc40635 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -195,7 +195,7 @@ int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc,
 	for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
 		if (!CMSG_OK(msg, cmsg))
 			return -EINVAL;
-#if defined(CONFIG_IPV6)
+#if IS_ENABLED(CONFIG_IPV6)
 		if (allow_ipv6 &&
 		    cmsg->cmsg_level == SOL_IPV6 &&
 		    cmsg->cmsg_type == IPV6_PKTINFO) {



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