nx842_powernv_compress(9)

okay so bestie — this is nx842_powernv_compress(9), straight out of the Kernel API Manual, and it's literally the compress function for the 842 algorithm. no cap, every fact is staying, we're just giving it main character energy 💅

🎀 NAME 🎀

nx842_powernv_compress — Compress data using the 842 algorithm

✨ SYNOPSIS ✨

here's the signature, copied exactly, don't @ me 🫶

int nx842_powernv_compress (const unsigned char *in , unsigned int inlen
       , unsigned char *out , unsigned int *outlenp , void *wmem );

🦋 ARGUMENTS 🦋

• in — input buffer pointer
• inlen — input buffer size
• out — output buffer pointer
• outlenp — output buffer size pointer
• wmem — working memory buffer pointer, size determined by nx842_powernv_driver.workmem_size

💖 DESCRIPTION 💖

Compression provided by the NX842 coprocessor on IBM PowerNV systems. The input buffer is compressed and the result is stored in the provided output buffer. iconic behavior, honestly 🌸

Upon return from this function, outlen contains the length of the compressed data. If there is an error then outlen will be 0 and an error will be specified by the return code from this function. so if you see a zero, that's your vibe check saying something went wrong 😭

🔥 RETURN 🔥

see nx842_powernv_exec — short and sweet, periodt.

🌈 SEE ALSO 🌈

Kernel file ./drivers/crypto/nx/nx-common-powernv.c nx842_exec_icswx(9), nx842_exec_vas(9), nx842_powernv_decompress(9)

mwah 💋 this page came from source/version ./drivers/crypto/nx and is dated October 2026 — nx842_powernv_compress(9), out. 🫶✨