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, 3 insertions, 0 deletions

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 30baed0e696d..3d3b699dc022 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -516,6 +516,9 @@ struct ip_vs_scheduler {
         char                    *name;          /* scheduler name */
         atomic_t                refcnt;         /* reference counter */
         struct module           *module;        /* THIS_MODULE/NULL */
+#ifdef CONFIG_IP_VS_IPV6
+        int                     supports_ipv6;  /* scheduler has IPv6 support */
+#endif
 
         /* scheduler initializing service */
         int (*init_service)(struct ip_vs_service *svc);