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Tobias Waldekranz f7a70d650b net: bridge: switchdev: Ensure deferred event delivery on unoffload 
When unoffloading a device, it is important to ensure that all
relevant deferred events are delivered to it before it disassociates
itself from the bridge.

Before this change, this was true for the normal case when a device
maps 1:1 to a net_bridge_port, i.e.

   br0
   /
swp0

When swp0 leaves br0, the call to switchdev_deferred_process() in
del_nbp() makes sure to process any outstanding events while the
device is still associated with the bridge.

In the case when the association is indirect though, i.e. when the
device is attached to the bridge via an intermediate device, like a
LAG...

    br0
    /
  lag0
  /
swp0

...then detaching swp0 from lag0 does not cause any net_bridge_port to
be deleted, so there was no guarantee that all events had been
processed before the device disassociated itself from the bridge.

Fix this by always synchronously processing all deferred events before
signaling completion of unoffloading back to the driver.

Fixes: 4e51bf44a0 ("net: bridge: move the switchdev object replay helpers to "push" mode")
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-16 09:36:37 +00:00
..
6lowpan net: fill in MODULE_DESCRIPTION()s for 6LoWPAN 2024-02-09 14:12:01 -08:00
9p net: 9p: avoid freeing uninit memory in p9pdu_vreadf 2023-12-13 05:44:30 +09:00
802 net: fill in MODULE_DESCRIPTION()s under net/802* 2023-10-28 11:29:28 +01:00
8021q vlan: skip nested type that is not IFLA_VLAN_QOS_MAPPING 2024-01-19 21:25:06 -08:00
appletalk net: remove SOCK_DEBUG leftovers 2023-12-26 20:31:01 +00:00
atm net: fill in MODULE_DESCRIPTION()s for mpoa 2024-02-09 14:12:01 -08:00
ax25
batman-adv batman-adv: mcast: fix memory leak on deleting a batman-adv interface 2024-01-27 09:13:39 +01:00
bluetooth TTY/Serial changes for 6.8-rc1 2024-01-18 11:37:24 -08:00
bpf bpf: Fix dtor CFI 2023-12-15 16:25:55 -08:00
bridge net: bridge: switchdev: Ensure deferred event delivery on unoffload 2024-02-16 09:36:37 +00:00
caif net: fill in MODULE_DESCRIPTION()s for CAIF 2024-01-05 08:06:35 -08:00
can can: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER) 2024-02-14 13:53:03 +01:00
ceph libceph: just wait for more data to be available on the socket 2024-02-07 14:43:29 +01:00
core net: add rcu safety to rtnl_prop_list_size() 2024-02-12 17:38:52 -08:00
dcb
dccp net: remove SOCK_DEBUG leftovers 2023-12-26 20:31:01 +00:00
devlink devlink: avoid potential loop in devlink_rel_nested_in_notify_work() 2024-02-06 18:45:16 -08:00
dns_resolver Networking changes for 6.8. 2024-01-11 10:07:29 -08:00
dsa net: dsa: fix netdev_priv() dereference before check on non-DSA netdevice events 2024-01-11 16:33:52 -08:00
ethernet
ethtool ethtool: netlink: Add missing ethnl_ops_begin/complete 2024-01-18 13:21:06 +01:00
handshake net/handshake: Fix handshake_req_destroy_test1 2024-02-08 18:32:29 -08:00
hsr net: hsr: remove WARN_ONCE() in send_hsr_supervision_frame() 2024-01-29 11:29:55 +00:00
ieee802154 mac802154: Avoid new associations while disassociating 2023-12-15 11:14:57 +01:00
ife net: sched: ife: fix potential use-after-free 2023-12-15 10:50:18 +00:00
ipv4 net-timestamp: make sk_tskey more predictable in error path 2024-02-15 12:04:04 +01:00
ipv6 net-timestamp: make sk_tskey more predictable in error path 2024-02-15 12:04:04 +01:00
iucv net/iucv: fix the allocation size of iucv_path_table array 2024-02-16 09:25:09 +00:00
kcm net: kcm: fix direct access to bv_len 2024-01-03 18:37:22 -08:00
key net: fill in MODULE_DESCRIPTION()s for af_key 2024-02-09 14:12:01 -08:00
l2tp ipv6: annotate data-races around np->ucast_oif 2023-12-11 10:59:17 +00:00
l3mdev
lapb
llc llc: call sock_orphan() at release time 2024-01-30 13:49:09 +01:00
mac80211 wifi: mac80211: reload info pointer in ieee80211_tx_dequeue() 2024-02-08 13:16:22 +01:00
mac802154 mac802154: Avoid new associations while disassociating 2023-12-15 11:14:57 +01:00
mctp mctp: perform route lookups under a RCU read-side lock 2023-10-10 19:43:22 -07:00
mpls
mptcp mptcp: really cope with fastopen race 2024-02-12 10:08:13 +00:00
ncsi net/ncsi: Add NC-SI 1.2 Get MC MAC Address command 2023-11-18 15:00:51 +00:00
netfilter Including fixes from can, wireless and netfilter. 2024-02-15 11:39:27 -08:00
netlabel calipso: fix memory leak in netlbl_calipso_add_pass() 2023-12-07 14:23:12 -05:00
netlink netlink: fix potential sleeping issue in mqueue_flush_file 2024-01-23 11:21:18 +01:00
netrom
nfc nfc: nci: free rx_data_reassembly skb on NCI device cleanup 2024-01-29 12:05:31 +00:00
nsh
openvswitch net: openvswitch: limit the number of recursions from action sets 2024-02-09 12:54:38 -08:00
packet net: fill in MODULE_DESCRIPTION() for AF_PACKET 2024-01-05 08:06:35 -08:00
phonet
psample genetlink: Use internal flags for multicast groups 2023-12-29 08:43:59 +00:00
qrtr net: qrtr: ns: Return 0 if server port is not present 2024-01-01 18:41:29 +00:00
rds net:rds: Fix possible deadlock in rds_message_put 2024-02-13 10:25:30 +01:00
rfkill Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-12-21 22:17:23 +01:00
rose net/rose: fix races in rose_kill_by_device() 2023-12-15 11:59:53 +00:00
rxrpc rxrpc: Fix counting of new acks and nacks 2024-02-05 12:34:07 +00:00
sched net: fill in MODULE_DESCRIPTION()s for net/sched 2024-02-09 14:12:02 -08:00
sctp net: sctp: fix skb leak in sctp_inq_free() 2024-02-15 07:34:52 -08:00
smc net: smc: fix spurious error message from __sock_release() 2024-02-14 10:56:02 +00:00
strparser
sunrpc NFSv4.1: Assign the right value for initval and retries for rpc timeout 2024-01-29 13:39:48 -05:00
switchdev net: bridge: switchdev: Skip MDB replays of deferred events on offload 2024-02-16 09:36:37 +00:00
tipc tipc: Check the bearer type before calling tipc_udp_nl_bearer_add() 2024-02-06 08:49:26 +01:00
tls net: tls: fix returned read length with async decrypt 2024-02-10 21:38:19 +00:00
unix af_unix: Fix task hung while purging oob_skb in GC. 2024-02-13 11:33:04 +01:00
vmw_vsock vsock/virtio: use skb_frag_*() helpers 2024-01-03 18:37:16 -08:00
wireless wifi: cfg80211: detect stuck ECSA element in probe resp 2024-02-02 13:08:58 +01:00
x25 net: remove SOCK_DEBUG leftovers 2023-12-26 20:31:01 +00:00
xdp xsk: make xsk_buff_pool responsible for clearing xdp_buff::flags 2024-01-24 16:24:06 -08:00
xfrm net: fill in MODULE_DESCRIPTION()s for xfrm 2024-02-09 14:12:01 -08:00
compat.c file: stop exposing receive_fd_user() 2023-12-12 14:24:14 +01:00
devres.c
Kconfig bpfilter: remove bpfilter 2024-01-04 10:23:10 -08:00
Kconfig.debug
Makefile bpfilter: remove bpfilter 2024-01-04 10:23:10 -08:00
socket.c vfs-6.8.iov_iter 2024-01-08 11:43:04 -08:00
sysctl_net.c