IPVS: Add IPv6 support flag to schedulers

Add 'supports_ipv6' flag to struct ip_vs_scheduler to indicate whether a
scheduler supports IPv6. Set the flag to 1 in schedulers that work with
IPv6, 0 otherwise. This flag is checked in a later patch while trying to
add a service with a specific scheduler. Adjust debug in v6-supporting
schedulers to work with both address families.

Signed-off-by: Julius Volz <juliusv@google.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

1 files changed, 9 insertions, 6 deletions

diff --git a/net/ipv4/ipvs/ip_vs_wlc.c b/net/ipv4/ipvs/ip_vs_wlc.c
index 09fd993040f5..8c596e712599 100644
--- a/net/ipv4/ipvs/ip_vs_wlc.c
+++ b/net/ipv4/ipvs/ip_vs_wlc.c
@@ -89,12 +89,12 @@ ip_vs_wlc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
                 }
         }
 
-        IP_VS_DBG(6, "WLC: server %u.%u.%u.%u:%u "
-                  "activeconns %d refcnt %d weight %d overhead %d\n",
-                  NIPQUAD(least->addr.ip), ntohs(least->port),
-                  atomic_read(&least->activeconns),
-                  atomic_read(&least->refcnt),
-                  atomic_read(&least->weight), loh);
+        IP_VS_DBG_BUF(6, "WLC: server %s:%u "
+                      "activeconns %d refcnt %d weight %d overhead %d\n",
+                      IP_VS_DBG_ADDR(svc->af, &least->addr), ntohs(least->port),
+                      atomic_read(&least->activeconns),
+                      atomic_read(&least->refcnt),
+                      atomic_read(&least->weight), loh);
 
         return least;
 }
@@ -106,6 +106,9 @@ static struct ip_vs_scheduler ip_vs_wlc_scheduler =
         .refcnt =               ATOMIC_INIT(0),
         .module =               THIS_MODULE,
         .n_list =               LIST_HEAD_INIT(ip_vs_wlc_scheduler.n_list),
+#ifdef CONFIG_IP_VS_IPV6
+        .supports_ipv6 =        1,
+#endif
         .schedule =             ip_vs_wlc_schedule,
 };