From: Jonathan Toppins Date: Tue, 22 Nov 2022 21:24:29 +0000 (-0500) Subject: bonding: fix link recovery in mode 2 when updelay is nonzero X-Git-Tag: v5.15.92~1241 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=87c750affd881aceb253a3c472b2bfea568f8d2f;p=platform%2Fkernel%2Flinux-rpi.git bonding: fix link recovery in mode 2 when updelay is nonzero [ Upstream commit f8a65ab2f3ff7410921ebbf0dc55453102c33c56 ] Before this change when a bond in mode 2 lost link, all of its slaves lost link, the bonding device would never recover even after the expiration of updelay. This change removes the updelay when the bond currently has no usable links. Conforming to bonding.txt section 13.1 paragraph 4. Fixes: 41f891004063 ("bonding: ignore updelay param when there is no active slave") Signed-off-by: Jonathan Toppins Acked-by: Jay Vosburgh Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 402dffc..6dca5bf 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -2504,7 +2504,16 @@ static int bond_miimon_inspect(struct bonding *bond) struct slave *slave; bool ignore_updelay; - ignore_updelay = !rcu_dereference(bond->curr_active_slave); + if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP) { + ignore_updelay = !rcu_dereference(bond->curr_active_slave); + } else { + struct bond_up_slave *usable_slaves; + + usable_slaves = rcu_dereference(bond->usable_slaves); + + if (usable_slaves && usable_slaves->count == 0) + ignore_updelay = true; + } bond_for_each_slave_rcu(bond, slave, iter) { bond_propose_link_state(slave, BOND_LINK_NOCHANGE);