linux-kernel - Re: [PATCH RESEND v3 02/10] PCI: dwc: Fix inbound iATU entries out-of-bounds warning message

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Message-ID: <20230411110507.GD5333@thinkpad>
Date:   Tue, 11 Apr 2023 16:35:07 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Cai Huoqing <cai.huoqing@...ux.dev>,
        Jingoo Han <jingoohan1@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Vinod Koul <vkoul@...nel.org>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Rob Herring <robh@...nel.org>,
        Serge Semin <fancer.lancer@...il.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        linux-pci@...r.kernel.org, dmaengine@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND v3 02/10] PCI: dwc: Fix inbound iATU entries
 out-of-bounds warning message

On Tue, Apr 11, 2023 at 06:39:20AM +0300, Serge Semin wrote:
> The message is printed if the number of requested inbound iATU windows
> exceed the device capability. In that case the message should either refer
> to the "dma-ranges" DT property or to the DMA-ranges mapping. We suggest
> to use the later version as a counterpart to the just CPU-ranges mapping.
> In any case the current "Dma-ranges" phrase seems incorrect.
> 
> Suggested-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

- Mani

> ---
>  drivers/pci/controller/dwc/pcie-designware-host.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
> index 9952057c8819..5718b4bb67f0 100644
> --- a/drivers/pci/controller/dwc/pcie-designware-host.c
> +++ b/drivers/pci/controller/dwc/pcie-designware-host.c
> @@ -723,7 +723,7 @@ static int dw_pcie_iatu_setup(struct dw_pcie_rp *pp)
>  	}
>  
>  	if (pci->num_ib_windows <= i)
> -		dev_warn(pci->dev, "Dma-ranges exceed inbound iATU size (%u)\n",
> +		dev_warn(pci->dev, "DMA-ranges exceed inbound iATU size (%u)\n",
>  			 pci->num_ib_windows);
>  
>  	return 0;
> -- 
> 2.40.0
> 
> 

-- 
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