calipso_doi_walk(9)

📦 version 7.3.1, in nixpkgs unstable

💅 calipso_doi_walk — like, the kernel API manual, section 9, bestie

okay so real talk, we're in the kernel API manual today (that's the 9 in calipso_doi_walk(9), iykyk) and this little function is honestly so underrated. it just... walks the list. respectfully. let's get into it 🫶

✨ NAME ✨

calipso_doi_walk — literally just iterate through the DOI definitions, no drama, no cap 🌸

🎀 SYNOPSIS 🎀

int calipso_doi_walk (u32 *skip_cnt , int (*callback)(struct calipso_doi
*doi_def, void *arg) , void *cb_arg );

yes that's the whole thing. three args. she's petite. she's iconic. 👑

🦋 ARGUMENTS 🦋

  • skip_cnt — skip past this number of DOI definitions... and then she gets updated, okay? it's not just a read, it comes back changed. main character behaviour fr 💫
  • callback — the callback, called for each DOI definition. your moment to shine, bestie ✨
  • cb_arg — the argument you hand off to the callback function. it's giving "plus one" 🎟️

🔥 DESCRIPTION 🔥

so what she does is: iterate over the DOI definition list, skipping the first skip_cnt entries. simple. elegant. we love her 💖

for each entry, she calls callback. and listen — if callback returns a negative value, she stops and returns. like, she's done, she's not doing the rest, that's the whole vibe check 💀

returns zero on success, negative values on failure. that's it. that's the tea ☕

🌈 SEE ALSO 🌈

the kernel file 💅:

Kernel file ./net/netlabel/netlabel_calipso.c

and the whole friend group (they all show up together, it's adorable):

like, go read all of them. or don't. but they're there 🧚

ok that's the whole page, no notes. you understood it, you ate that, periodt 💅

mwah 💜 — this masterpiece lives in ./net/netlabel, dated October 2026, and she answers to the name calipso_doi_walk(9) 🌟

📦 where this page comes from