linux-kernel - Re: [PATCH v2 0/5] pci_endpoint_test: Fix the return value of IOCTLs

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Date:   Fri, 9 Sep 2022 15:09:58 +0200
From:   Lorenzo Pieralisi <lpieralisi@...nel.org>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     kishon@...com, gregkh@...uxfoundation.org,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        mie@...l.co.jp, kw@...ux.com
Subject: Re: [PATCH v2 0/5] pci_endpoint_test: Fix the return value of IOCTLs

On Wed, Aug 24, 2022 at 06:00:05PM +0530, Manivannan Sadhasivam wrote:
> During the review of a patch for pci_endpoint_test driver [1], Greg spotted
> the wrong usage of the return value of IOCTLs in the driver. This series
> fixes that by returning 0 for success and negative error code for failure.
> Relevant change is also made to the userspace tool and the Documentation.
> 
> Along with those, there are couple more patches fixing other small issues
> I noted.
> 
> NOTE: I have just compile tested this series. So it'd be good if someone
> can test it on the PCI endpoint setup.
> 
> Thanks,
> Mani
> 
> [1] https://lore.kernel.org/all/20220816100617.90720-1-mie@igel.co.jp/
> 
> Changes in v2:
> 
> * Fixed the error numbers in pci_endpoint_test
> * Added Fixes tag and CCed stable list for relevant patches. The patches
>   should get backported until 5.10 kernel only. Since for the LTS kernels
>   before that, the pci_endpoint_test driver was not supporting all commands.
> 
> Manivannan Sadhasivam (5):
>   misc: pci_endpoint_test: Fix the return value of IOCTL
>   tools: PCI: Fix parsing the return value of IOCTLs
>   Documentation: PCI: endpoint: Use the correct return value of
>     pcitest.sh
>   misc: pci_endpoint_test: Remove unnecessary WARN_ON
>   tools: PCI: Fix memory leak
> 
>  Documentation/PCI/endpoint/pci-test-howto.rst | 152 ++++++++--------
>  drivers/misc/pci_endpoint_test.c              | 167 ++++++++----------
>  tools/pci/pcitest.c                           |  48 ++---
>  3 files changed, 179 insertions(+), 188 deletions(-)

May I ask where are we with this thread ? I have noticed some key
comments from Greg that need addressing so I'd expect a new version.

Thanks,
Lorenzo