net/mlx4: Fix the check in attaching steering rules
authorTalat Batheesh <talatb@mellanox.com>
Sun, 4 Jun 2017 11:30:07 +0000 (14:30 +0300)
committerDavid S. Miller <davem@davemloft.net>
Mon, 5 Jun 2017 03:10:05 +0000 (23:10 -0400)
commit6dc06c08bef1c746ff8da33dab677cfbacdcad32
treeb5a2e18d98948d219041402de5a78e35d829f93d
parentb699d0035836f6712917a41e7ae58d84359b8ff9
net/mlx4: Fix the check in attaching steering rules

Our previous patch (cited below) introduced a regression
for RAW Eth QPs.

Fix it by checking if the QP number provided by user-space
exists, hence allowing steering rules to be added for valid
QPs only.

Fixes: 89c557687a32 ("net/mlx4_en: Avoid adding steering rules with invalid ring")
Reported-by: Or Gerlitz <gerlitz.or@gmail.com>
Signed-off-by: Talat Batheesh <talatb@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
drivers/net/ethernet/mellanox/mlx4/mcg.c
drivers/net/ethernet/mellanox/mlx4/qp.c
include/linux/mlx4/qp.h