Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 37995116 authored by Daniel Jurgens's avatar Daniel Jurgens Committed by Doug Ledford
Browse files

IB/mlx4: Check gid_index return value 



Check the returned GID index value and return an error if it is invalid.

Fixes: 5070cd22 ('IB/mlx4: Replace mechanism for RoCE GID management')
Signed-off-by: default avatarDaniel Jurgens <danielj@mellanox.com>
Reviewed-by: default avatarMark Bloch <markb@mellanox.com>
Reviewed-by: default avatarYuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent a1ab8402

drivers/infiniband/hw/mlx4/ah.c

+4 −1
Original line number Original line Diff line number Diff line
@@ -102,7 +102,10 @@ static struct ib_ah *create_iboe_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr 
	if (vlan_tag < 0x1000)

	if (vlan_tag < 0x1000)

		vlan_tag |= (ah_attr->sl & 7) << 13;

		vlan_tag |= (ah_attr->sl & 7) << 13;

	ah->av.eth.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24));

	ah->av.eth.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24));

	ah->av.eth.gid_index = mlx4_ib_gid_index_to_real_index(ibdev, ah_attr->port_num, ah_attr->grh.sgid_index);

	ret = mlx4_ib_gid_index_to_real_index(ibdev, ah_attr->port_num, ah_attr->grh.sgid_index);

	if (ret < 0)

		return ERR_PTR(ret);

	ah->av.eth.gid_index = ret;

	ah->av.eth.vlan = cpu_to_be16(vlan_tag);

	ah->av.eth.vlan = cpu_to_be16(vlan_tag);

	ah->av.eth.hop_limit = ah_attr->grh.hop_limit;

	ah->av.eth.hop_limit = ah_attr->grh.hop_limit;

	if (ah_attr->static_rate) {

	if (ah_attr->static_rate) {