Function nvme_init_ctrl_list 

pub unsafe extern "C" fn nvme_init_ctrl_list(
    cntlist: *mut nvme_ctrl_list,
    num_ctrls: __u16,
    ctrlist: *mut __u16,
)

nvme_init_ctrl_list() - Initialize an nvme_ctrl_list structure from an array. @cntlist: The controller list structure to initialize @num_ctrls: The number of controllers in the array, &ctrlist. @ctrlist: An array of controller identifiers in CPU native endian.

This is intended to be used with any command that takes a controller list argument. See nvme_ns_attach_ctrls() and nvme_ns_detach().