id_map_alloc(struct ib_device *ibdev, int slave_id, u32 sl_cm_id)
{
int ret;
- static int next_id;
struct id_map_entry *ent;
struct mlx4_ib_sriov *sriov = &to_mdev(ibdev)->sriov;
idr_preload(GFP_KERNEL);
spin_lock(&to_mdev(ibdev)->sriov.id_map_lock);
- ret = idr_alloc(&sriov->pv_id_table, ent, next_id, 0, GFP_NOWAIT);
+ ret = idr_alloc_cyclic(&sriov->pv_id_table, ent, 0, 0, GFP_NOWAIT);
if (ret >= 0) {
- next_id = max(ret + 1, 0);
ent->pv_cm_id = (u32)ret;
sl_id_map_add(ibdev, ent);
list_add_tail(&ent->list, &sriov->cm_list);