pci_aer_raw_clear_status(9)

💅 pci_aer_raw_clear_status(9) — from the Kernel API Manual, bestie

Okay so picture this: you're deep in ./drivers/pci/pcie/aer.c, the vibes are immaculate but the AER error registers are not, and you just need them cleared. That's this function. It's giving "no thoughts, just wipe the registers." ✨

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🌸 SYNOPSIS 🌸

int pci_aer_raw_clear_status (struct pci_dev *dev );

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🎀 ARGUMENTS 🎀

• dev — the PCI device, aka the main character of this whole operation 🫶

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💖 DESCRIPTION 💖

So what does it actually do? It clears the AER error status registers unconditionally — like, no questions asked, no vibe check, nothing. It does not care whether those registers are owned by firmware or by the OS. Not one bit. It's clearing them anyway. 😭

Unconditional is the whole point here — the manpage is very clear that this happens regardless of who owns the registers, so don't come for it expecting it to ask permission first. 💅

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⭐ RETURN ⭐

• 0 on success 🎉
• negative on failure 😭

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🦋 SEE ALSO 🦋

Kernel file ./drivers/pci/pcie/aer.c, plus the whole friend group:

• enable_ecrc_checking(9)
• disable_ecrc_checking(9)
• pcie_set_ecrc_checking(9)
• pcie_ecrc_get_policy(9)
• add_error_device(9)
• is_error_source(9)
• find_source_device(9)
• pci_aer_unmask_internal_errors(9)
• pci_aer_handle_error(9)
• aer_get_device_error_info(9)
• aer_isr_one_error_type(9)
• aer_isr_one_error(9)
• aer_isr(9)
• aer_irq(9)
• aer_enable_rootport(9)
• aer_disable_rootport(9)
• aer_remove(9)
• aer_probe(9)
• aer_root_reset(9)
• pcie_aer_init(9)

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🌈 That's the whole page, no cap. Go clear those registers, icon. 💜

This lil masterpiece lives in ./drivers/pci/pcie, dated October 2026, and it's called pci_aer_raw_clear_status(9) — say it with your chest, periodt. 👑🎀