i40e_check_mask(9)

💅 i40e_check_mask(9) 💅

okay so welcome to the Kernel API Manual, bestie — this is the page for i40e_check_mask, and honestly it's a little icon of a function. we're gonna get you fluent in it in like, one scroll. 🫶

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✨ NAME ✨

i40e_check_mask — check whether a mask field is set. that's it, that's the whole vibe check. 🔍

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🌸 SYNOPSIS 🌸

int i40e_check_mask (u64 mask , u64 field );

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🎀 ARGUMENTS 🎀

• mask — the full mask value. the whole situation, the big picture, all the bits at once 💖
• field — mask of the field to check. like, the specific little patch of bits you're actually asking about 👑

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🦋 DESCRIPTION 🦋

okay so here's the tea. 🍵

if the given mask is fully set, you get back a positive value. slay, everything's on, no notes. ✨

if the mask for the field is fully unset, you get back zero. nothing happening over there, respectfully. 💀

otherwise — and this is the "it's giving mixed signals" case — you get back a negative error code. 😭

so basically it's a three-way answer and you gotta handle all three, no cap. don't just treat it like a boolean or it WILL humble you. 🙈

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🌈 SEE ALSO 🌈

the whole friend group, fr fr — go say hi:

• Kernel file ./drivers/net/ethernet/intel/i40e/i40e_ethtool.c struct i40e_stats(9), i40e_add_one_ethtool_stat(9), __i40e_add_ethtool_stats(9), i40e_add_ethtool_stats(9), i40e_add_queue_stats(9), __i40e_add_stat_strings(9), i40e_add_stat_strings(9), i40e_partition_setting_complaint(9), i40e_phy_type_to_ethtool(9), i40e_get_settings_link_up_fec(9), i40e_get_settings_link_up(9), i40e_get_settings_link_down(9), i40e_get_link_ksettings(9), i40e_speed_to_link_speed(9), i40e_set_link_ksettings(9), i40e_get_pauseparam(9), i40e_set_pauseparam(9), i40e_get_stats_count(9), i40e_get_veb_tc_stats(9), i40e_get_pfc_stats(9), i40e_get_ethtool_stats(9), i40e_get_stat_strings(9), i40e_set_wol(9), __i40e_get_coalesce(9), i40e_get_coalesce(9), i40e_get_per_queue_coalesce(9), i40e_set_itr_per_queue(9), __i40e_set_coalesce(9), i40e_set_coalesce(9), i40e_set_per_queue_coalesce(9), i40e_parse_rx_flow_user_data(9), i40e_fill_rx_flow_user_data(9), i40e_get_ethtool_fdir_all(9), i40e_get_ethtool_fdir_entry(9), i40e_get_rx_ring_count(9), i40e_get_rxnfc(9), i40e_get_rss_hash_bits(9), i40e_update_ethtool_fdir_entry(9), i40e_prune_flex_pit_list(9), i40e_del_fdir_entry(9), i40e_unused_pit_index(9), i40e_find_flex_offset(9), i40e_add_flex_offset(9), __i40e_reprogram_flex_pit(9), i40e_reprogram_flex_pit(9), i40e_flow_str(9), i40e_pit_index_to_mask(9), i40e_print_input_set(9), i40e_check_fdir_input_set(9), i40e_match_fdir_filter(9), i40e_disallow_matching_filters(9), i40e_add_fdir_ethtool(9), i40e_set_rxnfc(9), i40e_max_channels(9), i40e_get_channels(9), i40e_set_channels(9), i40e_get_rxfh_key_size(9), i40e_get_rxfh_indir_size(9), i40e_get_rxfh(9), i40e_set_rxfh(9), i40e_get_priv_flags(9), i40e_set_priv_flags(9), i40e_get_module_info(9), i40e_get_module_eeprom(9)

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and that's the page!! 🧚‍♀️ this little legend lives over in ./drivers/net/ethernet/intel/i40e, stamped October 2026, and it's part of the Kernel API Manual — so if you ever forget how the whole three-return-values thing goes, just come back here and reread the DESCRIPTION. mwah, love u, go write some correct bitmask checks. 💜🎀🌸