spu2_assoc_resp_len(9)

spu2_assoc_resp_len(9) 💅

okay so bestie, welcome to the Kernel API Manual — this page is literally all about spu2_assoc_resp_len(9), and it’s giving “tiny helper, big AAD2 buffer energy” ✨.

💖 NAME 💖

spu2_assoc_resp_len — Determine the size of the AAD2 buffer needed to catch associated data in a SPU2 output packet. No cap, that’s the whole assignment 🫶.

✨ SYNOPSIS ✨

u32 spu2_assoc_resp_len (enum spu_cipher_mode cipher_mode , unsigned int assoc_len , unsigned int iv_len , bool is_encrypt );

🎀 ARGUMENTS 🎀

• cipher_mode — cipher mode. That’s it, that’s the vibe 💅.
• assoc_len — length of additional associated data, in bytes. (Bytes, bestie — keep up 😭.)
• iv_len — length of initialization vector, in bytes. Iconic little length parameter 🌸.
• is_encrypt — true if encrypting. false if decrypt. Periodt.

🌸 RETURN 🌸

It returns the Length of buffer to catch associated data in response — yes, that’s the whole return situation, and it ate 🔥.

🦋 SEE ALSO 🦋

Kernel file ./drivers/crypto/bcm/spu2.c — and the whole squad:

• spu2_cipher_xlate(9)
• spu2_hash_xlate(9)
• spu2_fmd_init(9)
• spu2_fmd_ctrl0_write(9)
• spu2_fmd_ctrl1_write(9)
• spu2_fmd_ctrl2_write(9)
• spu2_fmd_ctrl3_write(9)
• spu2_ctx_max_payload(9)
• spu2_payload_length(9)
• spu2_response_hdr_len(9)
• spu2_hash_pad_len(9)
• spu2_gcm_ccm_pad_len(9)
• spu2_aead_ivlen(9)
• spu2_hash_type(9)
• spu2_digest_size(9)
• spu2_create_request(9)
• spu2_cipher_req_init(9)
• spu2_cipher_req_finish(9)
• spu2_request_pad(9)
• spu2_xts_tweak_in_payload(9)
• spu2_tx_status_len(9)
• spu2_rx_status_len(9)
• spu2_status_process(9)
• spu2_ccm_update_iv(9)
• spu2_wordalign_padlen(9)

okay that’s the page, bestie! Source/version: ./drivers/crypto/bcm · Date: October 2026 · Page: spu2_assoc_resp_len(9) — byeeee 💋✨