ieee80211_fix_reserved_tid(9)

✨ ieee80211_fix_reserved_tid(9) ✨

okay so bestie, we're in the Kernel API Manual today and this little function is genuinely one of the shortest glow-ups in the whole tree, but it EATS. it's ieee80211_fix_reserved_tid, and no cap it does exactly one thing and does it cutely 💅

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🌸 NAME 🌸

ieee80211_fix_reserved_tid — hand you back the TID you should actually be using when the one you showed up with is reserved 🚫✨

like, you came in with a TID and it's a no-go zone, so this function is your bestie at the door going "girl not that one, here" 🫶

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🦋 SYNOPSIS 🦋

u8 ieee80211_fix_reserved_tid(u8 tid);

that's it. that's the whole vibe check. one argument in, one u8 out, main character energy only 💖

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🎀 ARGUMENTS 🎀

• tid — the assumed-reserved TID 👀 like, the one you think might be reserved and want swapped out. this is the input, the little guy getting inspected 🍓

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⭐ RETURN ⭐

• the alternative TID to use — slay, you're back in business ✨
• or 0 on error 😭 — so if you get a 0 back, that's the error case, not a cute TID. periodt.

ngl bestie, do check for that 0 — it's giving "something went wrong" not "here's your new TID" 💀

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👑 SEE ALSO 👑

• Kernel file ./net/mac80211/wme.c — the source, go read it, iykyk 📖
• ieee80211_set_qos_hdr(9) — the sibling function, iconic, highly recommend 🌈

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and that's the whole page bestie, short and iconic, we love a concise king 👑

this gem lives in ./net/mac80211, dated October 2026, and it's literally called ieee80211_fix_reserved_tid(9) — go forth and fix those reserved TIDs, mwah 💜🧚‍♀️