fcoe_ctlr_fcf_usable(9)

📦 version 7.3.1, in nixpkgs unstable

✨ fcoe_ctlr_fcf_usable — the vibe check for FCFs, bestie ✨

Okay so this is a page from the Kernel API Manual (yes, the kernel has lore too 💅) and it's about fcoe_ctlr_fcf_usable(9). It's short, it's sweet, and it's literally one job: telling you whether an FCF is usable. That's it. That's the whole thing. Let's get into it 🎀

💖 NAME 💖

fcoe_ctlr_fcf_usable — Check if a FCF is usable

Like, it's a vibe check but for a Fibre Channel Forwarder. Iconic honestly 🦋

🌸 SYNOPSIS 🌸

int fcoe_ctlr_fcf_usable (struct fcoe_fcf *fcf );

That's the whole signature, bestie. Returns an int, takes one pointer, no cap ✨

🎀 ARGUMENTS 🎀

  • fcf — The FCF to check. This is the one you're putting under the microscope, the main character of this function 🫶

🦋 DESCRIPTION 🦋

Return non-zero if the FCF is usable.

That's it. That's the description. Zero-fluff behavior: if it comes back non-zero, the FCF is usable; truthy means good to go 💚 (and the flip side, iykyk — falsy means nope).

It's giving small-function-with-big-responsibility energy honestly 👑

🔥 SEE ALSO 🔥

The kernel file lives at ./drivers/scsi/fcoe/fcoe_ctlr.c and it's surrounded by so many friends. Like genuinely, this function has the biggest friend group in the whole FCoE directory — a whole squad, a whole ensemble cast, a main-character friend group 🌈

Yeah. Sixty of them. Not me counting. (I counted.) Go read them all, they're literally all in ./drivers/scsi/fcoe/ 💀🌸

Lowkey the whole lesson here: this one returns non-zero when the FCF is usable, and that's the entire contract. No hidden extras, no surprises, no weird side quests 💅

Okay bye bestie, go ship your FCoE code 🫶 This gorgeous little page came from the kernel source tree at ./drivers/scsi/fcoe, dated October 2026, and it's filed under fcoe_ctlr_fcf_usable(9) in case you need to find it again. Slay 💖✨

📦 where this page comes from