_lm_tcp_isle_remove
isle_nbytes = _lm_tcp_isle_remove(pdev, tcp, sb_idx, isle_num + 1, &gen_buf_list);
_lm_tcp_isle_remove(pdev, tcp_state, NON_EXISTENT_SB_IDX, isle_cnt, &aux_isles_list);
isle_nbytes = _lm_tcp_isle_remove(pdev, tcp, sb_idx, num_isle + (num_of_isles - 1), &removed_list);
isle_nbytes = _lm_tcp_isle_remove(pdev, tcp, sb_idx, 1, &gen_buf_list);