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Cong Wang 845e0ebb44 net: change addr_list_lock back to static key 
The dynamic key update for addr_list_lock still causes troubles,
for example the following race condition still exists:

CPU 0:				CPU 1:
(RCU read lock)			(RTNL lock)
dev_mc_seq_show()		netdev_update_lockdep_key()
				  -> lockdep_unregister_key()
 -> netif_addr_lock_bh()

because lockdep doesn't provide an API to update it atomically.
Therefore, we have to move it back to static keys and use subclass
for nest locking like before.

In commit 1a33e10e4a ("net: partially revert dynamic lockdep key
changes"), I already reverted most parts of commit ab92d68fc2
("net: core: add generic lockdep keys").

This patch reverts the rest and also part of commit f3b0a18bb6
("net: remove unnecessary variables and callback"). After this
patch, addr_list_lock changes back to using static keys and
subclasses to satisfy lockdep. Thanks to dev->lower_level, we do
not have to change back to ->ndo_get_lock_subclass().

And hopefully this reduces some syzbot lockdep noises too.

Reported-by: syzbot+f3a0e80c34b3fc28ac5e@syzkaller.appspotmail.com
Cc: Taehee Yoo <ap420073@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2020-06-09 12:59:45 -07:00
..
Kconfig batman-adv: Disable CONFIG_BATMAN_ADV_SYSFS by default 2020-01-01 00:57:07 +01:00
Makefile batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
bat_algo.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
bat_algo.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
bat_iv_ogm.c batman-adv: Utilize prandom_u32_max for random [0, max) values 2020-04-21 10:07:31 +02:00
bat_iv_ogm.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
bat_v.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
bat_v.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
bat_v_elp.c batman-adv: Revert "disable ethtool link speed detection when auto negotiation off" 2020-05-26 09:23:33 +02:00
bat_v_elp.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
bat_v_ogm.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-06 22:10:13 -07:00
bat_v_ogm.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
bitarray.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
bitarray.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
bridge_loop_avoidance.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
bridge_loop_avoidance.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
debugfs.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
debugfs.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
distributed-arp-table.c batman-adv: Replace zero-length array with flexible-array member 2020-02-17 22:43:42 +01:00
distributed-arp-table.h batman-adv: remove unused inline function batadv_arp_change_timeout 2020-04-24 15:22:41 +02:00
fragmentation.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
fragmentation.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
gateway_client.c batman-adv: use rcu_replace_pointer() where appropriate 2020-05-22 14:19:24 +02:00
gateway_client.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
gateway_common.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
gateway_common.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
hard-interface.c batman-adv: use rcu_replace_pointer() where appropriate 2020-05-22 14:19:24 +02:00
hard-interface.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
hash.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
hash.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
icmp_socket.c batadv_socket_read(): get rid of pointless access_ok() 2020-05-20 20:31:33 -04:00
icmp_socket.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
log.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
log.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
main.c This feature/cleanup patchset includes the following patches: 2020-01-15 23:04:04 +01:00
main.h batman-adv: Start new development cycle 2020-04-21 10:07:30 +02:00
multicast.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
multicast.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
netlink.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
netlink.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
network-coding.c batman-adv: fix batadv_nc_random_weight_tq 2020-04-21 10:08:04 +02:00
network-coding.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
originator.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
originator.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
routing.c batman-adv: use rcu_replace_pointer() where appropriate 2020-05-22 14:19:24 +02:00
routing.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
send.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
send.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
soft-interface.c net: change addr_list_lock back to static key 2020-06-09 12:59:45 -07:00
soft-interface.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
sysfs.c batman-adv: Fix refcnt leak in batadv_store_throughput_override 2020-04-21 10:08:05 +02:00
sysfs.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
tp_meter.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
tp_meter.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
trace.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
trace.h batman-adv: trace: Drop unneeded types.h include 2020-04-21 10:07:31 +02:00
translation-table.c batman-adv: Avoid RCU list-traversal in spinlock 2020-02-17 16:07:50 +01:00
translation-table.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
tvlv.c batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
tvlv.h batman-adv: Update copyright years for 2020 2020-01-01 00:00:33 +01:00
types.h batman-adv: Fix spelling error in term buffer 2020-04-21 10:07:31 +02:00