gtp: add GTPA_LINK info to msg sent to userspace

During a dump, this attribute is essential, it enables the userspace to
know on which interface the context is linked to.

Fixes: 459aa660eb1d ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Tested-by: Gabriel Ganne <gabriel.ganne@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index 21640a035d7df30de40da0b14a7e6abd309550ef..8e47d0112e5dc3798a4ffbf0e345f5b35419d319 100644 (file)
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -1179,6 +1179,7 @@ static int gtp_genl_fill_info(struct sk_buff *skb, u32 snd_portid, u32 snd_seq,
                goto nlmsg_failure;
 
        if (nla_put_u32(skb, GTPA_VERSION, pctx->gtp_version) ||
+           nla_put_u32(skb, GTPA_LINK, pctx->dev->ifindex) ||
            nla_put_be32(skb, GTPA_PEER_ADDRESS, pctx->peer_addr_ip4.s_addr) ||
            nla_put_be32(skb, GTPA_MS_ADDRESS, pctx->ms_addr_ip4.s_addr))
                goto nla_put_failure;