linux-kernel - Re: [PATCH v3 5/6] PCI: pnv_php: Fix surprise plug detection and recovery

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Message-ID: <551742074.1370228.1752797108649.JavaMail.zimbra@raptorengineeringinc.com>
Date: Thu, 17 Jul 2025 19:05:08 -0500 (CDT)
From: Timothy Pearson <tpearson@...torengineering.com>
To: Bjorn Helgaas <helgaas@...nel.org>
Cc: Timothy Pearson <tpearson@...torengineering.com>, 
	linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>, 
	linux-kernel <linux-kernel@...r.kernel.org>, 
	linux-pci <linux-pci@...r.kernel.org>, 
	Madhavan Srinivasan <maddy@...ux.ibm.com>, 
	Michael Ellerman <mpe@...erman.id.au>, 
	christophe leroy <christophe.leroy@...roup.eu>, 
	Naveen N Rao <naveen@...nel.org>, 
	Bjorn Helgaas <bhelgaas@...gle.com>, 
	Shawn Anastasio <sanastasio@...torengineering.com>
Subject: Re: [PATCH v3 5/6] PCI: pnv_php: Fix surprise plug detection and
 recovery



----- Original Message -----
> From: "Bjorn Helgaas" <helgaas@...nel.org>
> To: "Timothy Pearson" <tpearson@...torengineering.com>
> Cc: "linuxppc-dev" <linuxppc-dev@...ts.ozlabs.org>, "linux-kernel" <linux-kernel@...r.kernel.org>, "linux-pci"
> <linux-pci@...r.kernel.org>, "Madhavan Srinivasan" <maddy@...ux.ibm.com>, "Michael Ellerman" <mpe@...erman.id.au>,
> "christophe leroy" <christophe.leroy@...roup.eu>, "Naveen N Rao" <naveen@...nel.org>, "Bjorn Helgaas"
> <bhelgaas@...gle.com>, "Shawn Anastasio" <sanastasio@...torengineering.com>
> Sent: Thursday, July 17, 2025 6:27:45 PM
> Subject: Re: [PATCH v3 5/6] PCI: pnv_php: Fix surprise plug detection and recovery

> On Tue, Jul 15, 2025 at 04:39:06PM -0500, Timothy Pearson wrote:
>> The existing PowerNV hotplug code did not handle surprise plug events
>> correctly, leading to a complete failure of the hotplug system after
>> device removal and a required reboot to detect new devices.
> 
>> +++ b/drivers/pci/hotplug/pnv_php.c
>> @@ -4,12 +4,14 @@
>>   *
>>   * Copyright Gavin Shan, IBM Corporation 2016.
>>   * Copyright (C) 2025 Raptor Engineering, LLC
>> + * Copyright (C) 2025 Raptor Computing Systems, LLC
> 
> Just to double-check that you want both copyright lines here?

Yes, both entities ended up sponsoring this part of the work over time.  Thank you for double checking!