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This series from Jiri solves a deadlock when removing a network namespace with mlx5 devlink instance being in it. The deadlock is between: 1) mlx5_ib->unregister_netdevice_notifier() AND 2) mlx5_core->devlink_reload->cleanup_net() To slove this introduced mlx5 netdev added/removed events to track uplink netdev to be used for register_netdevice_notifier_dev_net() purposes. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEGhZs6bAKwk/OTgTpSD+KveBX+j4FAmPkeZAACgkQSD+KveBX +j6Digf/fTtMmV2I2GwKQJCza4+MAP8Nt9tKInj3x02AoNVXNwHupL72HWZiaKnB YGvPAwjDvxPy2Ok1BsHJLyEOTZpZse8QtS/Sjzk00lovtOYzCwLdJfBrNnVRS5KV Cz/dNtlQcpsAoErFSfmvraLhn7tMNrHMTDahzaNalDkO3wZYXUh+2VDwnXErQy+3 1HI9m2pGy8hQ3sNQTNhqcyY4mp1Qw3nTVIkE8c9E5TJcawVkk4xqlgQuT43nqcn5 H+CTXJTFyUMNkF8kNPTMvMoYfTYWhBqbZKuf+YDyQKwdf5IZyc1kuRIaqJNs5VjU mUtwKHMk5apKLbE8rvmZlg/+geTlJA== =Aqcc -----END PGP SIGNATURE----- Merge tag 'mlx5-next-netdev-deadlock' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux Saeed Mahameed says: ==================== mlx5-next-netdev-deadlock This series from Jiri solves a deadlock when removing a network namespace with mlx5 devlink instance being in it. The deadlock is between: 1) mlx5_ib->unregister_netdevice_notifier() AND 2) mlx5_core->devlink_reload->cleanup_net() To slove this introduced mlx5 netdev added/removed events to track uplink netdev to be used for register_netdevice_notifier_dev_net() purposes. * tag 'mlx5-next-netdev-deadlock' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux: RDMA/mlx5: Track netdev to avoid deadlock during netdev notifier unregister net/mlx5e: Propagate an internal event in case uplink netdev changes net/mlx5e: Fix trap event handling net/mlx5: Introduce CQE error syndrome ==================== Link: https://lore.kernel.org/r/20230208005626.72930-1-saeed@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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