scsw_is_valid_cstat(9)

📦 version 7.3.1, in nixpkgs unstable

💅 scsw_is_valid_cstat 💅

okay so this is a page from the Kernel API Manual, bestie, and it's literally about one tiny little function that goes by scsw_is_valid_cstat(9) 🎀 she's small but she matters, i promise.

✨ NAME ✨

scsw_is_valid_cstat — check cstat field validity 💖

🌸 SYNOPSIS 🌸

int scsw_is_valid_cstat (union scsw *scsw );

that's it. that's the whole vibe. one function, one pointer, zero drama ✨

🦋 ARGUMENTS 🦋

  • scsw — pointer to scsw 🫶 like, that's the whole thing, she just wants a pointer to an scsw and she'll take it from there.

👑 DESCRIPTION 👑

okay so here's the tea ☕ — this function returns non-zero if the cstat field of the scsw you handed it is valid. and the slay part? it does not care whether it's a transport mode scsw or a command mode scsw. both are welcome here, no gatekeeping 💅✨

and if the field does not contain a valid value? she returns zero. that's it. that's the whole personality 🎀

ngl this one's a simple queen — no hidden lore, no gotchas, just a yes/no vibe check on your cstat field 🔥

🌈 SEE ALSO 🌈

the whole friend group, fr fr 🫶 — first up, the kernel file where all this lives:

  • ./arch/s390/include/asm/scsw.h

and then the structs:

  • struct cmd_scsw(9)
  • struct tm_scsw(9)
  • struct eadm_scsw(9)
  • union scsw(9)

the scsw family:

the scsw_cmd_is_valid_* girlies:

the scsw_tm_is_valid_* girlies:

the plain scsw_is_valid_* crew:

and the solicited squad at the end:

and that's the whole page, bestie 🧚💜 mwah 💋

🎀 cute little sign-off: this whole thing lives in ./arch/s390/include/asm, and the version/date stamp on it is October 2026, and yeah — the page itself is literally scsw_is_valid_cstat(9), periodt. 💅⭐
📦 where this page comes from