LU-10391 lnet: fix build issue when IPv6 is disabled.

struct inet6_dev and struct inet6_ifaddr are not defined if IPv6
is not configured for the Linux kernel.

Test-Parameters: trivial
Fixes: 781499eee64 ("LU-10391 lnet: support IPv6 in lnet_inet_enumerate()")
Change-Id: I8b16ad7bea1394c4560130190023590213ff2ded
Signed-off-by: James Simmons <jsimmons@infradead.org>
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/48990
Reviewed-by: Chris Horn <chris.horn@hpe.com>
Reviewed-by: Neil Brown <neilb@suse.de>
Reviewed-by: Frank Sehr <fsehr@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>

diff --git a/lnet/lnet/config.c b/lnet/lnet/config.c
index 5dc820e..2773e8c 100644 (file)
--- a/lnet/lnet/config.c
+++ b/lnet/lnet/config.c
@@ -1518,8 +1518,10 @@ int lnet_inet_enumerate(struct lnet_inetdev **dev_list, struct net *ns, bool v6)
        for_each_netdev(ns, dev) {
                int flags = dev_get_flags(dev);
                struct in_device *in_dev;
+#if IS_ENABLED(CONFIG_IPV6)
                struct inet6_dev *in6_dev;
                const struct inet6_ifaddr *ifa6;
+#endif
                int node_id;
                int cpt;