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Date:	Mon,  8 Feb 2016 12:55:19 +0100
From:	Nikolay Aleksandrov <razor@...ckwall.org>
To:	netdev@...r.kernel.org
Cc:	roopa@...ulusnetworks.com, stephen@...workplumber.org,
	Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Subject: [PATCH iproute2 13/21] iplink: bridge: add support for IFLA_BR_MCAST_LAST_MEMBER_CNT

From: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>

This patch implements support for the IFLA_BR_MCAST_LAST_MEMBER_CNT
attribute in iproute2 so it can change the last member count value.

Signed-off-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
---
 ip/iplink_bridge.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/ip/iplink_bridge.c b/ip/iplink_bridge.c
index d15bd45dcdf6..d98b126698e2 100644
--- a/ip/iplink_bridge.c
+++ b/ip/iplink_bridge.c
@@ -38,6 +38,7 @@ static void print_explain(FILE *f)
 		"                  [ mcast_querier MULTICAST_QUERIER ]\n"
 		"                  [ mcast_hash_elasticity HASH_ELASTICITY ]\n"
 		"                  [ mcast_hash_max HASH_MAX ]\n"
+		"                  [ mcast_last_member_count LAST_MEMBER_COUNT ]\n"
 		"\n"
 		"Where: VLAN_PROTOCOL := { 802.1Q | 802.1ad }\n"
 	);
@@ -198,6 +199,16 @@ static int bridge_parse_opt(struct link_util *lu, int argc, char **argv,
 
 			addattr32(n, 1024, IFLA_BR_MCAST_HASH_MAX,
 				  mcast_hash_max);
+		} else if (matches(*argv, "mcast_last_member_count") == 0) {
+			__u32 mcast_lmc;
+
+			NEXT_ARG();
+			if (get_u32(&mcast_lmc, *argv, 0))
+				invarg("invalid mcast_last_member_count",
+				       *argv);
+
+			addattr32(n, 1024, IFLA_BR_MCAST_LAST_MEMBER_CNT,
+				  mcast_lmc);
 		} else if (matches(*argv, "help") == 0) {
 			explain();
 			return -1;
@@ -341,6 +352,10 @@ static void bridge_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
 	if (tb[IFLA_BR_MCAST_HASH_MAX])
 		fprintf(f, "mcast_hash_max %u ",
 			rta_getattr_u32(tb[IFLA_BR_MCAST_HASH_MAX]));
+
+	if (tb[IFLA_BR_MCAST_LAST_MEMBER_CNT])
+		fprintf(f, "mcast_last_member_count %u ",
+			rta_getattr_u32(tb[IFLA_BR_MCAST_LAST_MEMBER_CNT]));
 }
 
 static void bridge_print_help(struct link_util *lu, int argc, char **argv,
-- 
2.4.3

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