Re: [PATCH V1] PCI: dwc: Use dev_info for PCIe link down event logging

Jon Hunter
2022-09-13T17:59:09Z

On 13/09/2022 17:51, Manivannan Sadhasivam wrote:
> On Tue, Sep 13, 2022 at 03:42:37PM +0530, Vidya Sagar wrote:
>> Some of the platforms (like Tegra194 and Tegra234) have open slots and
>> not having an endpoint connected to the slot is not an error.
>> So, changing the macro from dev_err to dev_info to log the event.
>>
>
> But the link up not happening is an actual error and -ETIMEDOUT is being
> returned. So I don't think the log severity should be changed.

Yes it is an error in the sense it is a timeout, but reporting an error
because nothing is attached to a PCI slot seems a bit noisy. Please note
that a similar change was made by the following commit and it also seems
appropriate here ...

commit 4b16a8227907118e011fb396022da671a52b2272
Author: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Date: Tue Jun 18 23:32:06 2019 +0530

PCI: tegra: Change link retry log level to debug

BTW, we check for error messages in the dmesg output and this is a new
error seen as of Linux v6.0 and so this was flagged in a test. We can
ignore the error, but in this case it seem more appropriate to make this
a info or debug level print.

Jon

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