scsw_is_valid_pno(9)

✨ NAME ✨

scsw_is_valid_pno — check pno field validity 💅

okay so this is scsw_is_valid_pno(9), from the Kernel API Manual, and it's literally here to check pno field validity. bestie, we love a tiny little validity checker. 🎀

🌸 SYNOPSIS 🌸

int scsw_is_valid_pno (union scsw *scsw );

🎀 ARGUMENTS 🎀

• scsw — pointer to scsw. that's the whole argument, and yes it's a pointer to the scsw, periodt. 🫶

🦋 DESCRIPTION 🦋

okay so the actual vibe check: this returns non-zero if the pno field of the specified scsw is valid, regardless of whether it is a transport mode or command mode scsw. it returns zero if the field does not contain a valid value. no extra lore, no secret side quest. 💖

👑 SEE ALSO 👑

First up, the kernel file ./arch/s390/include/asm/scsw.h — and then all these iconic besties:

• struct cmd_scsw(9)
• struct tm_scsw(9)
• struct eadm_scsw(9)
• union scsw(9)
• scsw_is_tm(9)
• scsw_key(9)
• scsw_eswf(9)
• scsw_cc(9)
• scsw_ectl(9)
• scsw_pno(9)
• scsw_fctl(9)
• scsw_actl(9)
• scsw_stctl(9)
• scsw_dstat(9)
• scsw_cstat(9)
• scsw_cmd_is_valid_key(9)
• scsw_cmd_is_valid_sctl(9)
• scsw_cmd_is_valid_eswf(9)
• scsw_cmd_is_valid_cc(9)
• scsw_cmd_is_valid_fmt(9)
• scsw_cmd_is_valid_pfch(9)
• scsw_cmd_is_valid_isic(9)
• scsw_cmd_is_valid_alcc(9)
• scsw_cmd_is_valid_ssi(9)
• scsw_cmd_is_valid_zcc(9)
• scsw_cmd_is_valid_ectl(9)
• scsw_cmd_is_valid_pno(9)
• scsw_cmd_is_valid_fctl(9)
• scsw_cmd_is_valid_actl(9)
• scsw_cmd_is_valid_stctl(9)
• scsw_cmd_is_valid_dstat(9)
• scsw_cmd_is_valid_cstat(9)
• scsw_tm_is_valid_key(9)
• scsw_tm_is_valid_eswf(9)
• scsw_tm_is_valid_cc(9)
• scsw_tm_is_valid_fmt(9)
• scsw_tm_is_valid_x(9)
• scsw_tm_is_valid_q(9)
• scsw_tm_is_valid_ectl(9)
• scsw_tm_is_valid_pno(9)
• scsw_tm_is_valid_fctl(9)
• scsw_tm_is_valid_actl(9)
• scsw_tm_is_valid_stctl(9)
• scsw_tm_is_valid_dstat(9)
• scsw_tm_is_valid_cstat(9)
• scsw_tm_is_valid_fcxs(9)
• scsw_tm_is_valid_schxs(9)
• scsw_is_valid_actl(9)
• scsw_is_valid_cc(9)
• scsw_is_valid_cstat(9)
• scsw_is_valid_dstat(9)
• scsw_is_valid_ectl(9)
• scsw_is_valid_eswf(9)
• scsw_is_valid_fctl(9)
• scsw_is_valid_key(9)
• scsw_is_valid_stctl(9)
• scsw_cmd_is_solicited(9)
• scsw_tm_is_solicited(9)
• scsw_is_solicited(9)

Cute little sign-off: source/version is ./arch/s390/include/asm, the date is October 2026, and this page is scsw_is_valid_pno(9). bye bestie, go check those pno fields! 💅✨