ocs_hcu_hash_finup(9)

👑 ocs_hcu_hash_finup (9) — Kernel API Manual ✨

okay so bestie, welcome to the ocs_hcu_hash_finup page 💅 this lil function lives in the Kernel API Manual, and it's literally the ✨grand finale✨ move — it updates and finalizes your hash computation in one go. two jobs, one function, main character energy fr fr 🎀

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🌸 NAME 🌸

ocs_hcu_hash_finup — update and finalize hash computation, bestie 💖

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🦋 SYNOPSIS 🦋

int ocs_hcu_hash_finup (struct ocs_hcu_dev *hcu_dev , const struct
ocs_hcu_hash_ctx *ctx , const struct ocs_hcu_dma_list *dma_list , u8
*dgst , size_t dgst_len );

like, look at all those params 👀 she's got range, no cap 🫶

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🎀 ARGUMENTS 🎀

• hcu_dev — the OCS HCU device you wanna use. that's your girl 💜
• ctx — the OCS HCU hashing context. she's const, so hands off 🙈
• dma_list — the OCS DMA list that maps the input data you're processing. also const, also hands off ✨
• dgst — the buffer where you save the computed digest. this is the glow-up destination 💅
• dgst_len — the length of dgst. gotta know how much room you've got, iykyk 🍓

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⭐ RETURN ⭐

0 on success 🥳 — and if things go sideways, a negative error code instead. not me getting a negative error code 😭💀

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🌈 SEE ALSO 🌈

Kernel file ./drivers/crypto/intel/keembay/ocs-hcu.c plus the whole squad, periodt 👑

• struct ocs_hcu_dma_entry(9)
• struct ocs_hcu_dma_list(9)
• ocs_hcu_wait_busy(9)
• ocs_hcu_get_intermediate_data(9)
• ocs_hcu_set_intermediate_data(9)
• ocs_hcu_hw_cfg(9)
• ocs_hcu_clear_key(9)
• ocs_hcu_write_key(9)
• ocs_hcu_ll_dma_start(9)
• ocs_hcu_hash_init(9)
• ocs_hcu_hash_update(9)
• ocs_hcu_hash_final(9)
• ocs_hcu_digest(9)
• ocs_hcu_hmac(9)

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ok that's the whole page bestie, go forth and hash responsibly 🧚‍♀️💖

and finally, the cute lil sign-off: this one's from ./drivers/crypto/intel/keembay, dated October 2026 🌸 catch you on the flip side, ocs_hcu_hash_finup(9) out 💜