linux-kernel - Re: [PATCH v3 1/2] PCI/AER: Fix missing uevent on recovery when a reset is requested

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Message-ID: <aItp1uUeYBsv0z_-@wunner.de>
Date: Thu, 31 Jul 2025 15:04:22 +0200
From: Lukas Wunner <lukas@...ner.de>
To: Niklas Schnelle <schnelle@...ux.ibm.com>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>,
	Mahesh J Salgaonkar <mahesh@...ux.ibm.com>,
	Linas Vepstas <linasvepstas@...il.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	Manivannan Sadhasivam <mani@...nel.org>,
	Gerald Schaefer <gerald.schaefer@...ux.ibm.com>,
	Heiko Carstens <hca@...ux.ibm.com>,
	Vasily Gorbik <gor@...ux.ibm.com>,
	Alexander Gordeev <agordeev@...ux.ibm.com>,
	Christian Borntraeger <borntraeger@...ux.ibm.com>,
	Sven Schnelle <svens@...ux.ibm.com>,
	Peter Oberparleiter <oberpar@...ux.ibm.com>,
	Matthew Rosato <mjrosato@...ux.ibm.com>,
	Oliver O'Halloran <oohall@...il.com>, Sinan Kaya <okaya@...nel.org>,
	linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	Keith Busch <kbusch@...nel.org>
Subject: Re: [PATCH v3 1/2] PCI/AER: Fix missing uevent on recovery when a
 reset is requested

On Wed, Jul 30, 2025 at 01:20:57PM +0200, Niklas Schnelle wrote:
> Since commit 7b42d97e99d3 ("PCI/ERR: Always report current recovery
> status for udev") AER uses the result of error_detected() as parameter
> to pci_uevent_ers(). As pci_uevent_ers() however does not handle
> PCI_ERS_RESULT_NEED_RESET this results in a missing uevent for the
> beginning of recovery if drivers request a reset. Fix this by treating
> PCI_ERS_RESULT_NEED_RESET as beginning recovery.
> 
> Cc: stable@...r.kernel.org
> Fixes: 7b42d97e99d3 ("PCI/ERR: Always report current recovery status for udev")
> Signed-off-by: Niklas Schnelle <schnelle@...ux.ibm.com>

Reviewed-by: Lukas Wunner <lukas@...ner.de>