dev_get_iflink(9)

🦋 dev_get_iflink — the glow-up edition

okay so this is the manual page for dev_get_iflink(9) from the Kernel API Manual, and honestly bestie, it's a short one but she serves. Let's get into it 💅

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✨ NAME ✨

dev_get_iflink — get 'iflink' value of a interface 💖

✨ SYNOPSIS ✨

int dev_get_iflink (const struct net_device *dev );

✨ ARGUMENTS ✨

• dev — the targeted interface 🎯 like, that's the one you're asking about, periodt

✨ DESCRIPTION ✨

okay so here's the tea 🍓 — this one indicates the ifindex the interface is linked to. That's the whole vibe.

And for the physical girlies out there 👑: physical interfaces have the same 'ifindex' and 'iflink' values. no cap, that's literally the rule 🌸

it's giving "small function, big clarity" and we're obsessed ✨

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💜 SEE ALSO 💜

the friend group is huge, bestie — like this function knows everybody at the party 🫶. Here's the full guest list, and yes, from Kernel file ./net/core/dev.c:

dev_add_pack(9), __dev_remove_pack(9), dev_remove_pack(9),
dev_fill_metadata_dst(9), netdev_napi_by_id_lock(9),
__dev_get_by_name(9), dev_get_by_name_rcu(9), netdev_get_by_name(9),
__dev_get_by_index(9), dev_get_by_index_rcu(9), netdev_get_by_index(9),
dev_get_by_napi_id(9), netdev_get_by_index_lock(9), netdev_get_name(9),
dev_getbyhwaddr_rcu(9), dev_getbyhwaddr(9), netdev_get_by_flags_rcu(9),
dev_valid_name(9), __dev_alloc_name(9), dev_alloc_name(9),
dev_get_alias(9), netdev_features_change(9), __netdev_notify_peers(9),
netdev_notify_peers(9), dev_disable_gro_hw(9),
register_netdevice_notifier(9), unregister_netdevice_notifier(9),
register_netdevice_notifier_net(9),
unregister_netdevice_notifier_net(9), call_netdevice_notifiers_info(9),
call_netdevice_notifiers_info_robust(9), call_netdevice_notifiers(9),
call_netdevice_notifiers_mtu(9), dev_forward_skb(9),
dev_nit_active_rcu(9), netif_setup_tc(9),
netif_set_real_num_rx_queues(9), netif_set_real_num_queues(9),
netif_set_tso_max_size(9), netif_set_tso_max_segs(9),
netif_inherit_tso_max(9), netif_get_num_default_rss_queues(9),
netif_device_detach(9), netif_device_attach(9), dev_loopback_xmit(9),
__dev_queue_xmit(9), rps_flow_is_active(9), rps_may_expire_flow(9),
__netif_rx(9), netif_rx(9), netdev_is_rx_handler_busy(9),
netdev_rx_handler_register(9), netdev_rx_handler_unregister(9),
netif_receive_skb_core(9), netif_receive_skb(9),
netif_receive_skb_list(9), __napi_schedule(9), napi_schedule_prep(9),
__napi_schedule_irqoff(9), netif_threaded_enable(9),
netif_queue_set_napi(9), napi_disable(9), napi_enable(9),
netdev_has_upper_dev(9), netdev_has_upper_dev_all_rcu(9),
netdev_has_any_upper_dev(9), netdev_master_upper_dev_get(9),
netdev_has_any_lower_dev(9), netdev_upper_get_next_dev_rcu(9),
netdev_lower_get_next_private(9), netdev_lower_get_next_private_rcu(9),
netdev_lower_get_next(9), netdev_lower_get_first_private_rcu(9),
netdev_master_upper_dev_get_rcu(9), netdev_upper_dev_link(9),
netdev_master_upper_dev_link(9), netdev_upper_dev_unlink(9),
netdev_bonding_info_change(9), netdev_get_xmit_slave(9),
netdev_sk_get_lowest_dev(9), netdev_lower_state_changed(9),
netif_get_flags(9), netif_set_mtu_ext(9),
netif_pre_changeaddr_notify(9), dev_get_phys_port_id(9),
dev_get_phys_port_name(9), netif_get_port_parent_id(9),
netdev_port_same_parent_id(9),
netdev_change_proto_down_reason_locked(9), dev_change_xdp_fd(9),
dev_index_reserve(9), netdev_update_features(9),
netdev_change_features(9), netif_stacked_transfer_operstate(9),
register_netdevice(9), register_netdev(9), netdev_wait_allrefs_any(9),
dev_get_stats(9), dev_fetch_sw_netstats(9), dev_get_tstats64(9),
netdev_sw_irq_coalesce_default_on(9), alloc_netdev_mqs(9),
free_netdev(9), alloc_netdev_dummy(9), synchronize_net(9),
unregister_netdevice_queue(9), unregister_netdevice_many(9),
unregister_netdev(9), netdev_increment_features(9),
netdev_compute_master_upper_features(9), netdev_drivername(9)

like… that's a lot of (9)s and we respect every single one 🧚

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💀 friendly reminder bestie: copy these exactly, don't go renaming anything, iykyk

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🌸 okay that's the whole page! this lil cutie lives in ./net/core, she's dated October 2026, and her name is dev_get_iflink(9) — mwah, slay, bye 💖✨🎀