linux-kernel - Re: [PATCH v5 0/3] PCI/ERR: s390/pci: Use pci_uevent

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Message-ID: <ba0ecfe5df379f6e14c4df655b90695041a616f4.camel@linux.ibm.com>
Date: Thu, 14 Aug 2025 10:44:06 +0200
From: Niklas Schnelle <schnelle@...ux.ibm.com>
To: Bjorn Helgaas <bhelgaas@...gle.com>, Lukas Wunner <lukas@...ner.de>,
        Mahesh J Salgaonkar
	 <mahesh@...ux.ibm.com>
Cc: 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 v5 0/3] PCI/ERR: s390/pci: Use pci_uevent_ers() in PCI
 recovery

On Thu, 2025-08-07 at 15:55 +0200, Niklas Schnelle wrote:
> Hi Bjorn, Lukas, Mahesh,
> 
> This series adds issuing of uevents during PCI recovery on s390. In
> developing this I noticed that pci_uevent_ers() ignores
> PCI_ERS_RESULT_NEED_RESET. I think this will result in AER not generating a uevent
> at the beginning of recovery if drivers request a reset via the voting
> on error_detected() returns. This is fixed in the first patch and relied
> upon by the s390 recovery code as it also uses the result of
> error_detected() though with one device/driver at a time.
> 
> Thanks,
> Niklas
> 
> Signed-off-by: Niklas Schnelle <schnelle@...ux.ibm.com>
> ---

Hi Bjorn,

as you just picked up Lukas' "PCI: Reduce AER / EEH deviations" series
for pci/aer, I think it would make sense to take this via that tree
also. If you prefer and provide an ack for the first patch this could
also go via s390 of course.

Thanks,
Niklas