It is currently not used.
It was in fact never used since its introduction in commit ff5a0b421cb2 ("mptcp: faster active backup recovery"). It was probably initially added to struct pm_nl_pernet during the development of this commit, before being added to struct mptcp_pernet in ctrl.c, but not removed from the first place.
Reviewed-by: Mat Martineau martineau@kernel.org Signed-off-by: Matthieu Baerts (NGI0) matttbe@kernel.org --- net/mptcp/pm_kernel.c | 2 -- 1 file changed, 2 deletions(-)
diff --git a/net/mptcp/pm_kernel.c b/net/mptcp/pm_kernel.c index d30b06605f623aaaf38152ab6750841c5deeb0b5..0e1e99e72950f2432b33610047bc4aa68c5e75af 100644 --- a/net/mptcp/pm_kernel.c +++ b/net/mptcp/pm_kernel.c @@ -19,7 +19,6 @@ struct pm_nl_pernet { spinlock_t lock; struct list_head endp_list; unsigned int endpoints; - unsigned int stale_loss_cnt; unsigned int endp_signal_max; unsigned int endp_subflow_max; unsigned int limit_add_addr_accepted; @@ -1469,7 +1468,6 @@ static int __net_init pm_nl_init_net(struct net *net) /* Cit. 2 subflows ought to be enough for anybody. */ pernet->limit_extra_subflows = 2; pernet->next_id = 1; - pernet->stale_loss_cnt = 4; spin_lock_init(&pernet->lock);
/* No need to initialize other pernet fields, the struct is zeroed at