dlpar_remove_pci_slot(9)

💅 dlpar_remove_pci_slot — the dlpar_remove_pci_slot(9) glow-up

Okay so bestie, listen. This is a kernel API manual page, section 9, for a little function called dlpar_remove_pci_slot. She's not famous, she's not flashy, but she does exactly one job and she does it. Let's get into it 🎀

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✨ NAME ✨

dlpar_remove_pci_slot — DLPAR remove a PCI I/O Slot

Like, that's it. That's the whole vibe. DLPAR removes a PCI I/O Slot. Iconic behavior, no notes 💅

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✨ SYNOPSIS ✨

int dlpar_remove_pci_slot (char *drc_name , struct device_node *dn );

Look at her. Two arguments, returns an int. Clean, simple, no cap 🫶

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✨ ARGUMENTS ✨

• drc_name — the drc-name of the newly added slot 🏷️ (yes, the manpage really says "newly added" even though this function removes — I don't make the rules, I just report them, and I'm reporting them exactly)
• dn — a device_node 🌳

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✨ DESCRIPTION ✨

So what she actually does: remove the kernel and hotplug representations of a PCI I/O Slot. Both of them. Kernel representation? Gone. Hotplug representation? Also gone. She's not doing half the job, she's doing the whole thing 🔥

And because she's a good little function, she gives you return codes so you know what went down 👑

Return Codes:

• 0 — Success 🎉 (slay, she ate)
• -ENODEV — Not a valid drc_name 💀 (you passed her something she doesn't recognize, bestie, that's on you)
• -EIO — Internal PCI Error 😭 (not your fault, it's giving hardware drama)

fr fr, check that return value. Don't just call her and walk away like nothing happened 🙈

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✨ SEE ALSO ✨

Go meet the rest of the friend group 🦋

• Kernel file ./drivers/pci/hotplug/rpadlpar_core.c
• find_php_slot(9)
• dlpar_add_slot(9)
• dlpar_remove_vio_slot(9)
• dlpar_remove_slot(9)

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And that's the whole page, bestie — you made it to the end 🧚‍♀️💖 This little gem lives over in ./drivers/pci/hotplug, and the version/date on the tin says October 2026. Go forth and remove those PCI I/O slots responsibly, iykyk ⭐🍓