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net: atlantic: fix out of range usage of active_vlans array 

fix static checker warning:
 drivers/net/ethernet/aquantia/atlantic/aq_filters.c:166 aq_check_approve_fvlan()
 error: passing untrusted data to 'test_bit()'

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 7975d2aff5af: ("net: aquantia: add support of rx-vlan-filter offload")
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Bogdanov 2020-02-14 18:44:58 +03:00 committed by David S. Miller
parent 52a22f4d6f
commit 5a292c89a8
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/aquantia/atlantic/aq_filters.c
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@ -163,7 +163,7 @@ aq_check_approve_fvlan(struct aq_nic_s *aq_nic,
}
if ((aq_nic->ndev->features & NETIF_F_HW_VLAN_CTAG_FILTER) &&
(!test_bit(be16_to_cpu(fsp->h_ext.vlan_tci),
(!test_bit(be16_to_cpu(fsp->h_ext.vlan_tci) & VLAN_VID_MASK,
aq_nic->active_vlans))) {
netdev_err(aq_nic->ndev,
"ethtool: unknown vlan-id specified");