zfcp_get_port_by_wwpn(9)

📦 version 7.3.1, in nixpkgs unstable

💅 zfcp_get_port_by_wwpn(9)

okay so this is a page straight out of the Kernel API Manual bestie, and today's main character is zfcp_get_port_by_wwpn — the little function whose whole entire job is finding a port in an adapter's port list by wwpn. no cap, that's it, that's the vibe. 🦋

✨ NAME ✨

zfcp_get_port_by_wwpn — find port in port list of adapter by wwpn 💖

🌸 SYNOPSIS 🌸

struct zfcp_port * zfcp_get_port_by_wwpn (struct zfcp_adapter *adapter ,
u64 wwpn );

like yes, it returns a struct zfcp_port *, and yes it takes those two args, we love a clean signature ✨

🎀 ARGUMENTS 🎀

  • adapter — pointer to adapter to search for port 👑 this is the adapter you're digging through, the search zone, the place where the port list lives.
  • wwpn — wwpn to search for 🔍 the thing you're looking for, typed as a u64. it's giving "find my port" energy.

⭐ RETURN ⭐

pointer to zfcp_port or NULL 🫶

so like — you either get your port back, or you get NULL. both are valid outcomes bestie, don't take NULL personally 😭

🌈 SEE ALSO 🌈

Kernel file ./drivers/s390/scsi/zfcp_aux.c plus these iconic siblings:

go read them, iykyk 💜

okay that's the whole page, and fr fr the source/version is ./drivers/s390/scsi, dated October 2026 — shoutout to that path for holding it down, mwah 💋✨🎀

📦 where this page comes from