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Taehee Yoo e4546c6498 eth: bnxt: fix deadlock in the mgmt_ops
When queue is being reset, callbacks of mgmt_ops are called by
netdev_nl_bind_rx_doit().
The netdev_nl_bind_rx_doit() first acquires netdev_lock() and then calls
callbacks.
So, mgmt_ops callbacks should not acquire netdev_lock() internaly.

The bnxt_queue_{start | stop}() calls napi_{enable | disable}() but they
internally acquire netdev_lock().
So, deadlock occurs.

To avoid deadlock, napi_{enable | disable}_locked() should be used
instead.

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Fixes: cae03e5bdd ("net: hold netdev instance lock during queue operations")
Link: https://patch.msgid.link/20250402133123.840173-1-ap420073@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
History 2025-04-03 15:10:52 -07:00
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