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

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Message-ID: <20220913165159.GH25849@workstation>
Date:   Tue, 13 Sep 2022 22:21:59 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Vidya Sagar <vidyas@...dia.com>
Cc:     jingoohan1@...il.com, gustavo.pimentel@...opsys.com,
        lpieralisi@...nel.org, robh@...nel.org, kw@...ux.com,
        bhelgaas@...gle.com, treding@...dia.com, jonathanh@...dia.com,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        kthota@...dia.com, mmaddireddy@...dia.com, sagar.tv@...il.com
Subject: Re: [PATCH V1] PCI: dwc: Use dev_info for PCIe link down event
 logging

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.

Thanks,
Mani

> Signed-off-by: Vidya Sagar <vidyas@...dia.com>
> ---
>  drivers/pci/controller/dwc/pcie-designware.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c
> index 650a7f22f9d0..25154555aa7a 100644
> --- a/drivers/pci/controller/dwc/pcie-designware.c
> +++ b/drivers/pci/controller/dwc/pcie-designware.c
> @@ -456,7 +456,7 @@ int dw_pcie_wait_for_link(struct dw_pcie *pci)
>  	}
>  
>  	if (retries >= LINK_WAIT_MAX_RETRIES) {
> -		dev_err(pci->dev, "Phy link never came up\n");
> +		dev_info(pci->dev, "Phy link never came up\n");
>  		return -ETIMEDOUT;
>  	}
>  
> -- 
> 2.17.1
>