net/mlx5: Devcom, serialize devcom registration

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commit 1f893f57a3 upstream.

From one hand, mlx5 driver is allowing to probe PFs in parallel.
From the other hand, devcom, which is a share resource between PFs, is
registered without any lock. This might resulted in memory problems.

Hence, use the global mlx5_dev_list_lock in order to serialize devcom
registration.

Fixes: fadd59fc50 ("net/mlx5: Introduce inter-device communication mechanism")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Shay Drory 2023-05-02 13:36:42 +03:00 • committed by Greg Kroah-Hartman

parent eaa365c104

commit 3e8a82fb55

1 changed files with 14 additions and 5 deletions

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drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.c

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