linux-kernel - Re: [PATCH v11 16/23] cxl/pci: Introduce CXL Endpoint protocol error handlers

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Message-ID: <aK64MYnLrTDYHTnm@wunner.de>
Date: Wed, 27 Aug 2025 09:48:01 +0200
From: Lukas Wunner <lukas@...ner.de>
To: Terry Bowman <terry.bowman@....com>
Cc: dave@...olabs.net, jonathan.cameron@...wei.com, dave.jiang@...el.com,
	alison.schofield@...el.com, dan.j.williams@...el.com,
	bhelgaas@...gle.com, shiju.jose@...wei.com, ming.li@...omail.com,
	Smita.KoralahalliChannabasappa@....com, rrichter@....com,
	dan.carpenter@...aro.org, PradeepVineshReddy.Kodamati@....com,
	Benjamin.Cheatham@....com,
	sathyanarayanan.kuppuswamy@...ux.intel.com,
	linux-cxl@...r.kernel.org, alucerop@....com, ira.weiny@...el.com,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH v11 16/23] cxl/pci: Introduce CXL Endpoint protocol error
 handlers

On Tue, Aug 26, 2025 at 08:35:31PM -0500, Terry Bowman wrote:
> +++ b/include/linux/pci.h
> @@ -868,6 +868,9 @@ enum pci_ers_result {
>  
>  	/* No AER capabilities registered for the driver */
>  	PCI_ERS_RESULT_NO_AER_DRIVER = (__force pci_ers_result_t) 6,
> +
> +	/* System is unstable, panic. Is CXL specific */
> +	PCI_ERS_RESULT_PANIC = (__force pci_ers_result_t) 7,
>  };

Please update Documentation/PCI/pci-error-recovery.rst as well with
this new return value.

Thanks,

Lukas