eeh_remove_device(9)

🦋 eeh_remove_device(9) 🦋

okay so bestie, this little icon lives in the Kernel API Manual, and it’s literally the “undo” moment for EEH setup on a pci device. no cap. 💅

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🌸 NAME 🌸

eeh_remove_device — undo EEH setup for the indicated pci device. periodt. ✨

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✨ SYNOPSIS ✨

void eeh_remove_device (struct pci_dev *dev );

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🎀 ARGUMENTS 🎀

• dev — the pci device to be removed. that’s the main character getting its EEH setup undone, fr fr. 🫶

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💅 DESCRIPTION 💅

okay so you call this routine when a device is removed from a running system — think hotplug or dlpar, those kinds of moments. it unregisters the PCI device from the EEH subsystem. 🧚

and here’s the part you gotta clock: after this call, I/O errors affecting this device will no longer be detected. because of that, i/o errors affecting this slot may leave this device unusable. so yeah, it’s giving “cleanup era,” but with real consequences. 😭

heads up bestie: after this call, I/O errors for this device go undetected, and i/o errors affecting this slot may leave this device unusable. that’s straight from the page, not me being dramatic. 💀

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🔥 SEE ALSO 🔥

Kernel file: ./arch/powerpc/kernel/eeh.c — that’s the spot, iykyk. 🌈

• eeh_slot_error_detail(9)
• eeh_token_to_phys(9)
• eeh_dev_check_failure(9)
• eeh_check_failure(9)
• eeh_pci_enable(9)
• pcibios_set_pcie_reset_state(9)
• eeh_set_dev_freset(9)
• eeh_pe_reset_full(9)
• eeh_save_bars(9)
• eeh_init(9)
• eeh_probe_device(9)
• eeh_dev_open(9)
• eeh_dev_release(9)
• eeh_iommu_group_to_pe(9)
• eeh_pe_set_option(9)
• eeh_pe_get_state(9)
• eeh_pe_reset(9)
• eeh_pe_configure(9)
• eeh_pe_inject_err(9)

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mwah 💋 this page is chillin’ under the source/version path ./arch/powerpc/kernel, dated October 2026. byeee, go read the other EEH pages, they’re lowkey a whole saga 🫶🎀