flow_resources_alloc
uflow_res = flow_resources_alloc(cmd.flow_attr.num_of_specs);
EXPORT_SYMBOL(flow_resources_alloc);
uflow_res = flow_resources_alloc(MLX5_IB_CREATE_FLOW_MAX_FLOW_ACTIONS);
struct ib_uflow_resources *flow_resources_alloc(size_t num_specs);