[PATCH iproute2] mptcp: show all endpoints when no ID is specified

[Matthieu Baerts]

According to 'ip mptcp help', 'endpoint show' can accept no argument:

  ip mptcp endpoint show [ id ID ]

It makes sense to print all endpoints when no filter is used.

So here if the following command is used, all endpoints are printed:

  ip mptcp endpoint show

Same as:

  ip mptcp endpoint

Fixes: 7e0767cd ("add support for mptcp netlink interface")
Signed-off-by: Matthieu Baerts <matthieu.bae...@tessares.net>
---
 ip/ipmptcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ip/ipmptcp.c b/ip/ipmptcp.c
index bc12418b..e1ffafb3 100644
--- a/ip/ipmptcp.c
+++ b/ip/ipmptcp.c
@@ -273,7 +273,7 @@ static int mptcp_addr_show(int argc, char **argv)
        struct nlmsghdr *answer;
        int ret;
 
-       if (!argv)
+       if (argc <= 0)
                return mptcp_addr_dump();
 
        ret = mptcp_parse_opt(argc, argv, &req.n, false);
-- 
2.27.0