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RDMA/uverbs: Ensure validity of current QP state value

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The QP state is internal enum which is checked at the driver
level by calling to ib_modify_qp_is_ok(). Move this check closer
to user and leave kernel users to be checked by compiler.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Leon Romanovsky 2018-03-11 13:51:33 +02:00 committed by Doug Ledford
parent 75a4598209
commit 88de869bbe
1 changed files with 7 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/infiniband/core/uverbs_cmd.c
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@ -1991,6 +1991,13 @@ static int modify_qp(struct ib_uverbs_file *file,
goto release_qp;
}
if ((cmd->base.attr_mask & IB_QP_CUR_STATE &&
cmd->base.cur_qp_state > IB_QPS_ERR) ||
cmd->base.qp_state > IB_QPS_ERR) {
ret = -EINVAL;
goto release_qp;
}
attr->qp_state = cmd->base.qp_state;
attr->cur_qp_state = cmd->base.cur_qp_state;
attr->path_mtu = cmd->base.path_mtu;