net: bonding: annotate lockless writes with WRITE_ONCE()

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Several fields in bonding are read locklessly using READ_ONCE()
(or ACCESS_ONCE() previously) but have corresponding writes that
do not use WRITE_ONCE().

Add WRITE_ONCE() annotations to:
- bond->send_peer_notif decrements in bond_peer_notify_may_events()
  and reset in bond_close().
- bond->slave_cnt increments and decrements in bond_enslave() and
  __bond_release_one().
- bond->recv_probe updates in bond_open(), bond_option_arp_interval_set()
  and rlb_initialize().
- slaves->count decrement in bond_skip_slave().

Fixes: 4d97480b18 ("bonding: use local function pointer of bond->recv_probe in bond_handle_frame")
Fixes: 9a72c2da69 ("bonding: fix div by zero while enslaving and transmitting")
Fixes: ee63771474 ("bonding: Simplify the xmit function for modes that use xmit_hash")
Fixes: 429208aab9 ("net: bonding: add the READ_ONCE/WRITE_ONCE for outside lock accessing")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jay Vosburgh <jv@jvosburgh.net>
Reviewed-by: Xuanqiang Luo<luoxuanqiang@kylinos.cn>
Reviewed-by: Hangbin Liu <liuhangbin@kylinos.cn>
Link: https://patch.msgid.link/20260831081027.3209554-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

...

This commit is contained in:

Eric Dumazet 2026-08-31 08:10:27 +00:00 • committed by Paolo Abeni

parent c037915f80

commit bc93419130

3 changed files with 10 additions and 10 deletions

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2

drivers/net/bonding/bond_alb.c

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14

drivers/net/bonding/bond_main.c

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4

drivers/net/bonding/bond_options.c

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