4.9-stable review patch.  If anyone has any objections, please let me know.


From: Mohamad Haj Yahia <moha...@mellanox.com>

[ Upstream commit ccce1700263d8b5b219359d04180492a726cea16 ]

Need to check that VF mac address entered by the admin user is either
zero or unicast mac.
Multicast mac addresses are prohibited.

Fixes: 77256579c6b4 ('net/mlx5: E-Switch, Introduce Vport administration 
Signed-off-by: Mohamad Haj Yahia <moha...@mellanox.com>
Signed-off-by: Saeed Mahameed <sae...@mellanox.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
 drivers/net/ethernet/mellanox/mlx5/core/eswitch.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1703,7 +1703,7 @@ int mlx5_eswitch_set_vport_mac(struct ml
        if (!ESW_ALLOWED(esw))
                return -EPERM;
-       if (!LEGAL_VPORT(esw, vport))
+       if (!LEGAL_VPORT(esw, vport) || is_multicast_ether_addr(mac))
                return -EINVAL;

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