z_comp_alloc(9)

✨ z_comp_alloc ✨

ok so this is a page from the Kernel API Manual bestie, and we're talking about z_comp_alloc — the girl whose whole job is booking the venue for a compressor 💅

🌸 NAME 🌸

z_comp_alloc — allocate space for a compressor.

like, literally just reserving the space. that's her vibe check 🫶

🎀 SYNOPSIS 🎀

void * z_comp_alloc (unsigned char *options , int opt_len );

💖 ARGUMENTS 💖

• options — a pointer to the CCP option data, no cap 📍
• opt_len — the length of the CCP option sitting at options.

🦋 DESCRIPTION 🦋

okay so picture this: the options pointer points to a buffer that's holding all the CCP option data for the compression being negotiated rn. it's formatted according to RFC1979, and it describes the window size that the peer is requesting we use when we compress data to send to them. it's giving "hey bestie, here's my window size, please respect it" ✨

and then she returns the pointer to the private state for the compressor 💫 — or NULL if we could not allocate enough memory 😭 (yes, that's the sad path, always check for NULL fr fr).

ngl if you get NULL back, that's not a vibe. that means the memory just wasn't there. don't deref it, i'm begging 🙈

🌈 SEE ALSO 🌈

Kernel file ./drivers/net/ppp/ppp_deflate.c, plus the whole friend group 👑:

• z_comp_free(9)
• z_comp_init(9)
• z_comp_reset(9)
• z_compress(9)
• z_comp_stats(9)
• z_decomp_free(9)
• z_decomp_alloc(9)
• z_decomp_init(9)
• z_decomp_reset(9)
• z_decompress(9)
• z_incomp(9)

and that's the page, bestie 🎀 this icon lives in ./drivers/net/ppp and the date on the whole thing is October 2026 — slay, see you in the kernel tree, mwah 💜🍓