cc_copy_mac(9)

💅 cc_copy_mac(9) — Kernel API Manual 💅

okay so bestie, welcome to the Kernel API Manual, section 9 (9 = kernel routines, iykyk 🧚), and today's main character is literally cc_copy_mac. she's a tiny little function with one job and honestly? she ate. 🎀

---

✨ NAME ✨

cc_copy_mac — copy MAC to a temporary location 🫶

like, that's the whole vibe. no cap, that's the entire pitch. it copies the MAC somewhere temporary and dips. 💨

---

🌸 SYNOPSIS 🌸

void cc_copy_mac (struct device *dev , struct aead_request *req , enum
cc_sg_cpy_direct dir );

that's her signature. that's the whole look. she takes three things and returns void, so don't be waiting around for a return value, she gives you nothing back and that's iconic of her. 👑

---

🦋 ARGUMENTS 🦋

• dev — the device object 🖥️ like, the actual hardware thing we're doing business with. it's giving "who am I doing this for."
• req — the aead request object 📨 the request in question, the whole reason we're here. she's the moment.
• dir — [IN] (that's an input, bestie, so you're handing it in, not getting it back 💅) — it tells us the copy direction: from/to sgl. that's it, that's the whole job. lowkey important though, don't sleep on dir. 🙈

fr fr, dir is marked [IN] in the original, so please don't go expecting it to come back changed. she's input-only and she knows it. 🎀

---

🌈 SEE ALSO 🌈

• 🍓 Kernel file ./drivers/crypto/ccree/cc_buffer_mgr.c — yes, the whole path, go look at it, she lives there
• cc_get_sgl_nents(9) — sibling behaviour, go say hi
• cc_copy_sg_portion(9) — the other one in the friend group, also worth a vibe check

---

aaaand that's the page!! ✨ tiny, cute, does exactly one thing. go forth and copy those MACs to temporary locations responsibly, bestie. 💖

this little masterpiece is hanging out in ./drivers/crypto/ccree, dated October 2026, and it signs off as cc_copy_mac(9) — periodt, that's the whole footer, mwah 💋