s5p_hash_rx(9)

💖 s5p_hash_rx(9) — the kernel API manual, but make it cute 💖

Okay so bestie, welcome to the s5p_hash_rx page from the Kernel API Manual — yes, the whole entire manual, and we are here for it. This is the s5p_hash_rx(9) situation and honestly it's giving "small function, big responsibilities." Let's get into it. 🫶

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🌸 NAME 🌸

s5p_hash_rx — get next hash_sg_iter, periodt. That's the whole vibe. ✨

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🦋 SYNOPSIS 🦋

int s5p_hash_rx (struct s5p_aes_dev *dev );

Like, that's it. That's the signature. No cap. 💅

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🎀 ARGUMENTS 🎀

• dev — the device. The device! It's the device bestie, that's the argument, that's the whole thing it takes. 🧚

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⭐ RETURN ⭐

Okay so the return value is literally doing the most, it's out here with three whole moods:

• 2 — if there is no more data and it is UPDATE op
• 1 — if new receiving (input) data is ready and can be written to device
• 0 — if there is no more data and it is FINAL op

So like, 2 and 0 are both "no more data" but one is UPDATE and one is FINAL, and 1 is the main character energy "we got fresh input, write it to the device" moment. Iconic. 🔥

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👑 SEE ALSO 👑

Kernel file ./drivers/crypto/s5p-sss.c, plus the whole squad — and I do mean the whole squad, bestie, this list is long and every single one of them slays:

struct samsung_aes_variant(9), struct s5p_aes_dev(9), struct s5p_hash_reqctx(9), struct s5p_hash_ctx(9), s5p_set_dma_hashdata(9), s5p_hash_read_msg(9), s5p_hash_write_ctx_iv(9), s5p_hash_write_iv(9), s5p_hash_copy_result(9), s5p_hash_dma_flush(9), s5p_hash_dma_enable(9), s5p_hash_irq_disable(9), s5p_hash_irq_enable(9), s5p_hash_set_flow(9), s5p_ahash_dma_init(9), s5p_hash_write_ctrl(9), s5p_hash_xmit_dma(9), s5p_hash_copy_sgs(9), s5p_hash_copy_sg_lists(9), s5p_hash_prepare_sgs(9), s5p_hash_prepare_request(9), s5p_hash_update_dma_stop(9), s5p_hash_finish(9), s5p_hash_finish_req(9), s5p_hash_handle_queue(9), s5p_hash_tasklet_cb(9), s5p_hash_enqueue(9), s5p_hash_update(9), s5p_hash_final(9), s5p_hash_finup(9), s5p_hash_init(9), s5p_hash_digest(9), s5p_hash_cra_init_alg(9), s5p_hash_cra_init(9), s5p_hash_cra_exit(9), s5p_hash_export(9), s5p_hash_import(9).

iykyk. 💀

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Lowkey a whole ecosystem of s5p_hash_* functions and like three structs, and you thought this was just one little function? No bestie, it's a family reunion. 🙈

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And that's the page! Shoutout to ./drivers/crypto — that's where this beauty lives — documented as of October 2026 in the Kernel API Manual. Go forth and hash_sg_iter responsibly. 🍓✨💜