vli_sub(9)

💅 NAME 💅

Okay so bestie, welcome to vli_sub(9) — the kernel API manual page for vli_sub — and what it does is subtract right from left. That’s the vibe. That’s the whole assignment. ✨

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🦋 SYNOPSIS 🦋

u64 vli_sub (u64 *result , const u64 *left , const u64 *right , unsigned
       int ndigits );

That’s the signature, no cap. We’re returning a u64, and the args are result, left, right, and ndigits. Slay. 💅

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🎀 ARGUMENTS 🎀

• result — where to write result. That’s literally the spot the answer goes, bestie.
• left — vli. The left one. Main character energy.
• right — vli. The right one. Also iconic.
• ndigits — length of all vlis. So like, how many digits long all the vlis are. Periodt.

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🌸 NOTE 🌸

Heads up, bestie: this one can modify in-place. Not a drill. It’s giving “same buffer, new you.” 😭✨

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🔥 RETURN 🔥

It returns the carry bit.

That’s it. That’s the return. Carry bit supremacy. 💀

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👑 SEE ALSO 👑

Kernel file ./include/crypto/internal/ecc.h is the source/crew here, and these are the related manual-page besties:

• ecc_swap_digits(9)
• ecc_digits_from_bytes(9)
• ecc_is_key_valid(9)
• ecc_gen_privkey(9)
• ecc_make_pub_key(9)
• crypto_ecdh_shared_secret(9)
• ecc_is_pubkey_valid_partial(9)
• ecc_is_pubkey_valid_full(9)
• vli_is_zero(9)
• vli_cmp(9)
• vli_from_be64(9)
• vli_from_le64(9)
• vli_mod_inv(9)
• vli_mod_mult_slow(9)
• vli_num_bits(9)
• ecc_alloc_point(9)
• ecc_free_point(9)
• ecc_point_is_zero(9)
• ecc_point_mult_shamir(9)

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And that’s the whole vli_sub(9) moment, bestie 🫶 — signed off from ./include/crypto/internal, dated October 2026, and yes, the vli_sub(9) manual is literally right here living its best life. Bye bestie 💖🦋✨