pub unsafe fn gnrc_netif_ipv6_group_to_l2_group(
netif: *mut gnrc_netif_t,
ipv6_group: *const ipv6_addr_t,
l2_group: *mut uint8_t,
) -> c_int
pub unsafe fn gnrc_netif_ipv6_group_to_l2_group(
netif: *mut gnrc_netif_t,
ipv6_group: *const ipv6_addr_t,
l2_group: *mut uint8_t,
) -> c_int