netif_attrmask_next(9)

🎀 NAME 🎀

okay bestie so this page is netif_attrmask_next(9), straight out of the Kernel API Manual (section 9, networking girlie territory), and it does exactly one iconic thing: it gets the next CPU/Rx queue in a cpu/Rx queues mask. that's it. that's the whole job. and it ate. 💅

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✨ SYNOPSIS ✨

unsigned int netif_attrmask_next (int n , const unsigned long *srcp ,
       unsigned int nr_bits );

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🧚 ARGUMENTS 🧚

• n — the CPU/Rx queue index you're starting from. your current spot, your little home base 🫶
• srcp — pointer to the cpumask/Rx queue mask. the actual bitmask she's gonna look through, it's giving bouncer-at-the-club checking the list 🌈
• nr_bits — how many bits are in that bitmask. the size of the whole vibe, fr fr.

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🔥 RETURN 🔥

she returns the next (after n) CPU/Rx queue index in the mask. and if there's literally nothing else set? she gives you something >= nr_bits — no cap, that's your signal that there are no further CPUs/Rx queues set. not a single one. 💀

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🦋 SEE ALSO 🦋

okay so this list is long long, but it's all here because the kernel file ./include/linux/netdevice.h is a whole ecosystem and everyone's linked together. lowkey the netdev friend group:

• ./include/linux/netdevice.h
• struct gro_node(9)
• napi_is_scheduled(9)
• napi_schedule(9)
• napi_schedule_irqoff(9)
• napi_complete_done(9)
• napi_synchronize(9)
• napi_if_scheduled_mark_missed(9)
• enum netdev_priv_flags(9)
• struct net_device(9)
• netdev_priv(9)
• netdev_from_priv(9)
• netif_napi_add(9)
• netif_napi_add_config(9)
• netif_napi_add_tx(9)
• __netif_napi_del(9)
• netif_napi_del(9)
• netif_start_queue(9)
• netif_wake_queue(9)
• netif_stop_queue(9)
• netif_queue_stopped(9)
• netdev_queue_set_dql_min_limit(9)
• netdev_txq_bql_enqueue_prefetchw(9)
• netdev_txq_bql_complete_prefetchw(9)
• netdev_tx_sent_queue(9)
• netdev_sent_queue(9)
• netdev_tx_completed_queue(9)
• netdev_completed_queue(9)
• netdev_tx_reset_subqueue(9)
• netdev_reset_queue(9)
• netdev_cap_txqueue(9)
• netif_running(9)
• netif_start_subqueue(9)
• netif_stop_subqueue(9)
• __netif_subqueue_stopped(9)
• netif_subqueue_stopped(9)
• netif_wake_subqueue(9)
• netif_attr_test_mask(9)
• netif_attr_test_online(9)
• netif_attrmask_next_and(9)
• netif_is_multiqueue(9)
• dev_hold(9)
• dev_put(9)
• linkwatch_sync_dev(9)
• netif_carrier_ok(9)
• netif_dormant_on(9)
• netif_dormant_off(9)
• netif_dormant(9)
• netif_testing_on(9)
• netif_testing_off(9)
• netif_testing(9)
• netif_oper_up(9)
• netif_device_present(9)
• netif_tx_lock(9)
• __dev_uc_sync(9)
• __dev_uc_unsync(9)
• __dev_mc_sync(9)
• __dev_mc_unsync(9)

like I said. the whole friend group. yw 💜

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netif girlies stay winning — mask pointers are const unsigned long * and you should treat them with the respect they deserve 🎀

anyway, that's the page! go forth and find your next set bit, bestie. 🦋✨

sign-off szn: this one lives in ./include/linux and the vibe-check timestamp on it is October 2026 — mwah, periodt. 👑💖