4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Serhey Popovych <[email protected]>


[ Upstream commit db833d40ad3263b2ee3b59a1ba168bb3cfed8137 ]

Network interface groups support added while ago, however
there is no IFLA_GROUP attribute description in policy
and netlink message size calculations until now.

Add IFLA_GROUP attribute to the policy.

Fixes: cbda10fa97d7 ("net_device: add support for network device groups")
Signed-off-by: Serhey Popovych <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 net/core/rtnetlink.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -937,6 +937,7 @@ static noinline size_t if_nlmsg_size(con
               + nla_total_size(1) /* IFLA_LINKMODE */
               + nla_total_size(4) /* IFLA_CARRIER_CHANGES */
               + nla_total_size(4) /* IFLA_LINK_NETNSID */
+              + nla_total_size(4) /* IFLA_GROUP */
               + nla_total_size(ext_filter_mask
                                & RTEXT_FILTER_VF ? 4 : 0) /* IFLA_NUM_VF */
               + rtnl_vfinfo_size(dev, ext_filter_mask) /* IFLA_VFINFO_LIST */
@@ -1465,6 +1466,7 @@ static const struct nla_policy ifla_poli
        [IFLA_LINK_NETNSID]     = { .type = NLA_S32 },
        [IFLA_PROTO_DOWN]       = { .type = NLA_U8 },
        [IFLA_XDP]              = { .type = NLA_NESTED },
+       [IFLA_GROUP]            = { .type = NLA_U32 },
 };
 
 static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {


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