STRUCT OPTEE_SUPP(9)

💅 struct optee_supp(9) 💅

okay bestie, welcome to the Kernel API Manual ✨ — today's main character is struct optee_supp, and honestly? she's the group chat admin of the supplicant world 🫶

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🌸 NAME 🌸

struct optee_supp — the supplicant synchronization struct, no cap 💖

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✨ SYNOPSIS ✨

struct optee_supp {
    struct mutex mutex;
    struct tee_context *ctx;
    int req_id;
    struct list_head reqs;
    struct idr idr;
    struct completion reqs_c;
 };

look at her. iconic. flawless. not a single field out of place 💅

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🎀 Members 🎀

literally every single one, let's gooo 👑

• mutex — held while accessing content of this struct 🔒 like, do not touch the vibes while someone's already in here, fr fr
• ctx — the context of current connected supplicant. if !NULL the supplicant device is available for use, else busy. so basically: non-NULL means she's free and ready to hang, NULL means she's booked and busy, do not perceive her 😭
• req_id — current request id if supplicant is doing synchronous communication, else -1. yes, -1 is the "no thoughts, head empty" state 💀
• reqs — queued request not yet retrieved by supplicant 📥 sitting there in the queue like a text you haven't opened yet
• idr — IDR holding all requests currently being processed by supplicant 🗂️ every request she's actively working on lives here, periodt
• reqs_c — completion used by supplicant when waiting for a request to be queued ⏳ she's literally just waiting by her phone for a request to show up, we've all been there 🥲

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🦋 SEE ALSO 🦋

Kernel file ./drivers/tee/optee/optee_private.h plus the whole friend group, all linked up 🫶

• struct optee_call_waiter(9)
• struct optee_call_queue(9)
• struct optee_pcpu(9)
• struct optee_smc(9)
• struct optee_ffa(9)
• struct optee_revision(9)
• struct optee_ops(9)
• struct optee(9)

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lowkey important reminder bestie: that ctx field being !NULL vs NULL is the whole availability vibe check. don't get it twisted 🙈

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and that's the page! 🌈 this masterpiece lives in ./drivers/tee/optee, dated October 2026, and it's serving struct optee_supp(9) energy from the Kernel API Manual. slay, bye 💖🎀🦋