[PATCH iproute2-net] mptcp: limits: fix JSON support

["Matthieu Baerts (NGI0)" <matttbe@kernel.org>]

print_mptcp_limit() was trying to open a JSON sub-object and closing it,
but no JSON object was actually created before.

Because of that, JSON support was working with the MPTCP limits:

  $ ip -j mptcp limits show
  add_addr_accepted 0 subflows 2

Create a plain object before calling print_mptcp_limit: an array is not
needed here because all limits have a different name.

After this modification, we now have:

  $ ip -j mptcp limits show | jq
  {
    "add_addr_accepted": 0,
    "subflows": 2
  }

Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
---
 ip/ipmptcp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ip/ipmptcp.c b/ip/ipmptcp.c
index 02cf72ce..33906eb8 100644
--- a/ip/ipmptcp.c
+++ b/ip/ipmptcp.c
@@ -446,7 +446,9 @@ static int mptcp_limit_get_set(int argc, char **argv, int cmd)
 
 	ret = 0;
 	if (do_get) {
+		new_json_obj_plain(json);
 		ret = print_mptcp_limit(answer, stdout);
+		delete_json_obj_plain();
 		free(answer);
 	}
 

---
base-commit: d1341d07788e8148ce209107813861321a1fb690
change-id: 20261029-mptcp-limits-json-f60c82b687fa

Best regards,
--  
Matthieu Baerts (NGI0) <matttbe@kernel.org>