syzbot has been complaining about low MAX_LOCKDEP_KEYS for a long time, it is mostly because we register 4 dynamic keys per network device.
This patchset reduces the number of dynamic lockdep keys from 4 to 1 per netdev, by reverting to the previous static keys, except for addr_list_lock which still has to be dynamic. The second patch removes a bonding-specific key by the way. Cong Wang (2): net: partially revert dynamic lockdep key changes bonding: remove useless stats_lock_key --- drivers/net/bonding/bond_main.c | 4 +- .../net/ethernet/netronome/nfp/nfp_net_repr.c | 16 ++++ drivers/net/hamradio/bpqether.c | 20 +++++ drivers/net/hyperv/netvsc_drv.c | 2 + drivers/net/ipvlan/ipvlan_main.c | 2 + drivers/net/macsec.c | 2 + drivers/net/macvlan.c | 2 + drivers/net/ppp/ppp_generic.c | 2 + drivers/net/team/team.c | 1 + drivers/net/vrf.c | 1 + .../net/wireless/intersil/hostap/hostap_hw.c | 22 +++++ include/linux/netdevice.h | 27 ++++-- include/net/bonding.h | 1 - net/8021q/vlan_dev.c | 23 +++++ net/batman-adv/soft-interface.c | 30 +++++++ net/bluetooth/6lowpan.c | 8 ++ net/core/dev.c | 90 +++++++++++++++---- net/dsa/slave.c | 12 +++ net/ieee802154/6lowpan/core.c | 8 ++ net/l2tp/l2tp_eth.c | 1 + net/netrom/af_netrom.c | 21 +++++ net/rose/af_rose.c | 21 +++++ net/sched/sch_generic.c | 17 ++-- 23 files changed, 296 insertions(+), 37 deletions(-) -- 2.26.1
