mptcp: allow creating id 0 subflow

This patch drops id 0 limitation in mptcp_nl_cmd_sf_create() to allow creating additional subflows with the local addr ID 0. Fixes: 702c2f6 ("mptcp: netlink: allow userspace-driven subflow establishment") Closes: multipath-tcp/mptcp_net-next#391 Suggested-by: Matthieu Baerts <[email protected]> Signed-off-by: Geliang Tang <[email protected]>
intel-lab-lkp · Aug 9, 2023 · 87ced2e · 87ced2e
1 parent 6d8c3b7
commit 87ced2e
Showing 1 changed file with 0 additions and 6 deletions.
diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c
@@ -307,12 +307,6 @@ int mptcp_nl_cmd_sf_create(struct sk_buff *skb, struct genl_info *info)
 		goto create_err;
 	}
 
-	if (addr_l.id == 0) {
-		NL_SET_ERR_MSG_ATTR(info->extack, laddr, "missing local addr id");
-		err = -EINVAL;
-		goto create_err;
-	}
-
 	err = mptcp_pm_parse_addr(raddr, info, &addr_r);
 	if (err < 0) {
 		NL_SET_ERR_MSG_ATTR(info->extack, raddr, "error parsing remote addr");