ethnl_name_to_idx(9)

💅 ethnl_name_to_idx (it's giving "kernel API manual" energy)

okay so bestie, welcome to the ethnl_name_to_idx glow-up, straight out of the Kernel API Manual. this is the little function that goes "hey, what index does this name live at?" and honestly? iconic behavior. it's a lookup girlie. that's the whole vibe. 🎀

---

✨ NAME ✨

ethnl_name_to_idx — look up the string index for a name 🔍

like, you hand it a name, it hands you back where that name sits in the array. matchmaking, basically. 💖

---

🌸 SYNOPSIS 🌸

int ethnl_name_to_idx (ethnl_string_array_t names , unsigned int n_names
, const char *name );

no cap, that's the whole signature — names, n_names, name, three besties in a trench coat. 🫶

---

🦋 ARGUMENTS 🦋

• names — the array of ETH_GSTRING_LEN sized strings. yep, each one is exactly ETH_GSTRING_LEN sized, that's the rule, we respect it. 💅
• n_names — the number of strings chilling in the array. so it knows where the party ends. ⭐
• name — the name you're looking up. the main character of this whole operation, fr fr. 👑

---

🔥 RETURN 🔥

if it finds it: the index of the string. slay. ✅

if it doesn't: -ENOENT, which is kernel-speak for "not found, bestie, she's not here" 😭💀

---

🌈 SEE ALSO 🌈

the kernel file ./net/ethtool/bitset.c, plus the whole friend group:

• ethnl_bitmap32_clear(9)
• ethnl_bitmap32_not_zero(9)
• ethnl_bitmap32_update(9)
• ethnl_bitset32_size(9)
• ethnl_put_bitset32(9)
• ethnl_bitset_is_compact(9)
• ethnl_bitmap32_equal(9)
• ethnl_update_bitset32(9)
• ethnl_parse_bitset(9)

go read them, they're all lowkey obsessed with bitsets and honestly so am I 🧚💜

---

and that's the page!! mwah 💋 this one came from ./net/ethtool, dated October 2026 — periodt, no notes. 🍓