linux-kernel - Re: [PATCH] PCI: Fix endianness issues in pci_bus_read

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Message-ID: <9d0cce06-25fa-4ca6-8cd1-388e932d1ffc@163.com>
Date: Tue, 12 Aug 2025 22:44:06 +0800
From: Hans Zhang <18255117159@....com>
To: Gerd Bayer <gbayer@...ux.ibm.com>, Manivannan Sadhasivam
 <mani@...nel.org>, Hans Zhang <hans.zhang@...tech.com>
Cc: Arnd Bergmann <arnd@...nel.org>, Bjorn Helgaas <helgaas@...nel.org>,
 bhelgaas@...gle.com, Alexander Gordeev <agordeev@...ux.ibm.com>,
 Christian Borntraeger <borntraeger@...ux.ibm.com>,
 Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
 jingoohan1@...il.com, Krzysztof Wilczyński
 <kwilczynski@...nel.org>, linux-kernel@...r.kernel.org,
 linux-s390@...r.kernel.org, linux-next <linux-next@...r.kernel.org>,
 linux-pci@...r.kernel.org, Lorenzo Pieralisi <lpieralisi@...nel.org>,
 Rob Herring <robh@...nel.org>, Niklas Schnelle <schnelle@...ux.ibm.com>,
 geert@...ux-m68k.org
Subject: Re: [PATCH] PCI: Fix endianness issues in pci_bus_read_config()



On 2025/8/4 18:09, Gerd Bayer wrote:
> On Mon, 2025-08-04 at 11:06 +0800, Hans Zhang wrote:
>>
>> On 2025/8/1 19:30, Gerd Bayer wrote:
>>> On Fri, 2025-08-01 at 16:24 +0530, Manivannan Sadhasivam wrote:
>>>
>>> <--- snip --->
>>>
>>>>>>
>>
>> Dear all,
>>
>> According to the issue mentioned by Lukas and Mani. Gerd has already
>> been tested on the s390. I have tested it on the RK3588 and it works
>> fine. RK3588 uses Synopsys' PCIe IP, that is, the DWC driver. Our
>> company's is based on Cadence's PCIe 4.0 IP, and the test function is
>> normal. All the platforms I tested were based on ARM.
>>
>> The following is the patch based on the capability-search branch. May I
>> ask everyone, do you have any more questions?
>>
>> Gerd, if there's no problem, I'll add your Tested-by label.
> 
> Before you add that I'd like to re-test with the "final" patch.
> 
>> Branch:
>> https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git/log/?h=capability-search
>>
>> Patch:
> 
> <--- snip --->
> 
> Please bear with me while I'm working on that.


Dear Gerd,

May I ask if there is any update?



I plan to submit the v15 version of my series based on v6.17-rc1.
The modification method is like the previous comment:
https://lore.kernel.org/linux-pci/06012cc6-824d-4a7d-85c9-9995ec915382@163.com/

Best regards,
Hans