linux-kernel - Re: [PATCH v2 00/10] PCI: leak fixes, removable generic PCI host, assorted stuff

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Message-ID: <cc97108e-f3db-fc0c-3a88-ced7291be617@siemens.com>
Date:   Thu, 3 May 2018 09:52:16 +0200
From:   Jan Kiszka <jan.kiszka@...mens.com>
To:     Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     Jingoo Han <jingoohan1@...il.com>,
        Joao Pinto <Joao.Pinto@...opsys.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Will Deacon <will.deacon@....com>
Subject: Re: [PATCH v2 00/10] PCI: leak fixes, removable generic PCI host,
 assorted stuff

Hey Vladimir,

On 2018-05-03 09:12, Vladimir Zapolskiy wrote:
> Hi Jan,
> 
> On 04/30/2018 08:48 AM, Jan Kiszka wrote:
>> Changes in v2:
>>  - patch 1: commit message reworking as suggested by Lorenzo
>>  - patch 3-6: split-up as suggested by Bjorn
>>  - patch 8: new
>>  - patch 10: select PCI_DOMAINS from PCI_HOST_GENERIC, rather than
>>    allowing manual choice, as suggested by Lorenzo
>>
>> This primarily enables to unbind the generic PCI host controller without
>> leaving lots of memory leaks behind. A previous proposal patch 5 was
>> rejected because of those issues [1].
>>
>> The fixes have been validated in the Jailhouse setup, where we add and
>> remove a virtual PCI host controller on hypervisor activation/
>> deactivation, with the help of kmemleak.
> 
> by chance I was looking into a memleak in of_pci_get_host_bridge_resources(),
> so I can give you a number of review tags.

Thanks for the reviews and tests! And the pointer for the maintainers to
the conflict around patch 7.

> 
> FWIW the state of unfixably broken https://patchwork.kernel.org/patch/9662893/
> should be changed to obsoleted/deprecated/rejected.

Indeed.

Jan

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