handle_linkup_change(9)

✨ handle_linkup_change(9) ✨

okay so this is from the Kernel API Manual, and bestie, it's literally just one little function that handles linkup/linkdown notifications 💅

🌸 NAME 🌸

handle_linkup_change — finish linkup/down state changes, no cap 🦋

🎀 SYNOPSIS 🎀

void handle_linkup_change (struct hfi1_devdata *dd , u32 linkup );

💖 ARGUMENTS 💖

• dd — a valid device, like it has to be valid, that's the whole vibe check
• linkup — the link state information 🫶

👑 DESCRIPTION 👑

So this one handles a linkup or a link down notification ✨ The HW (that's the hardware, iykyk) needs time to finish its link up state change, and this function is literally giving it that chance. Let it cook 💀🔥

Heads up bestie: this is called outside an interrupt. Not inside. Outside. Periodt.

🌈 SEE ALSO 🌈

Kernel file ./drivers/infiniband/hw/hfi1/intr.c — go read it, it's giving main character energy 💜

okay that's the whole page, mwah 💋 this cutie lives in ./drivers/infiniband/hw/hfi1 and the page is dated October 2026 — drink water, stan the kernel, bye bestie 🎀🦋💖