net/mlx5e: Prevent possible races in VXLAN control flow

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[ Upstream commit 0c1cc8b221 ]

When calling add/remove VXLAN port, a lock must be held in order to
prevent race scenarios when more than one add/remove happens at the
same time.
Fix by holding our state_lock (mutex) as done by all other parts of the
driver.
Note that the spinlock protecting the radix-tree is still needed in
order to synchronize radix-tree access from softirq context.

Fixes: b3f63c3d5e ("net/mlx5e: Add netdev support for VXLAN tunneling")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Gal Pressman 2017-12-04 09:57:43 +02:00 • committed by Greg Kroah-Hartman

parent 604225824f

commit c844a45894

1 changed files with 4 additions and 0 deletions

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drivers/net/ethernet/mellanox/mlx5/core/vxlan.c

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