mptcp: pm: send ACK on non stale subflows

If the subflow is considered as "staled", it is better to avoid it to send an ACK carrying an ADD_ADDR or RM_ADDR. Another subflow, if any, will then be selected. Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>
intel-lab-lkp · Aug 3, 2024 · ff9e6d7 · ff9e6d7
1 parent 70eb7df
commit ff9e6d7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
@@ -772,7 +772,7 @@ void mptcp_pm_nl_addr_send_ack(struct mptcp_sock *msk)
 		return;
 
 	mptcp_for_each_subflow(msk, subflow) {
-		if (__mptcp_subflow_active(subflow)) {
+		if (!subflow->stale && __mptcp_subflow_active(subflow)) {
 			mptcp_pm_send_ack(msk, subflow, false, false);
 			break;
 		}