[NETLINK]: Convert netlink users to use group numbers instead of bitmasks

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/netfilter_decnet.h b/include/linux/netfilter_decnet.h
index 0189794..6f42536 100644
--- a/include/linux/netfilter_decnet.h
+++ b/include/linux/netfilter_decnet.h
@@ -56,7 +56,21 @@
 
 #define NFDN_RTMSG(r) ((unsigned char *)(r) + NLMSG_ALIGN(sizeof(struct nf_dn_rtmsg)))
 
+#ifndef __KERNEL__
+/* backwards compatibility for userspace */
 #define DNRMG_L1_GROUP 0x01
 #define DNRMG_L2_GROUP 0x02
+#endif
+
+enum {
+	DNRNG_NLGRP_NONE,
+#define DNRNG_NLGRP_NONE	DNRNG_NLGRP_NONE
+	DNRNG_NLGRP_L1,
+#define DNRNG_NLGRP_L1		DNRNG_NLGRP_L1
+	DNRNG_NLGRP_L2,
+#define DNRNG_NLGRP_L2		DNRNG_NLGRP_L2
+	__DNRNG_NLGRP_MAX
+};
+#define DNRNG_NLGRP_MAX	(__DNRNG_NLGRP_MAX - 1)
 
 #endif /*__LINUX_DECNET_NETFILTER_H*/