linux-kernel - Re: [PATCH v9 03/10] usb: dwc3: core: Access XHCI address space temporarily to read port info

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Date:   Tue, 25 Jul 2023 11:09:57 +0530
From:   Krishna Kurapati PSSNV <quic_kriskura@...cinc.com>
To:     Johan Hovold <johan@...nel.org>
CC:     Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        "Andy Gross" <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        "Konrad Dybcio" <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Felipe Balbi <balbi@...nel.org>,
        Wesley Cheng <quic_wcheng@...cinc.com>,
        <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <quic_pkondeti@...cinc.com>, <quic_ppratap@...cinc.com>,
        <quic_jackp@...cinc.com>, <quic_harshq@...cinc.com>,
        <ahalaney@...hat.com>, <quic_shazhuss@...cinc.com>
Subject: Re: [PATCH v9 03/10] usb: dwc3: core: Access XHCI address space
 temporarily to read port info



On 7/24/2023 9:11 PM, Johan Hovold wrote:
> [ Please remember to trim your replies. ]
> 
> On Sun, Jul 23, 2023 at 08:29:47PM +0530, Krishna Kurapati PSSNV wrote:
>> On 6/27/2023 5:15 PM, Johan Hovold wrote:
>>> On Wed, Jun 21, 2023 at 10:06:21AM +0530, Krishna Kurapati wrote:
> 
>>>> +#define XHCI_EXT_PORT_MAJOR(x)	(((x) >> 24) & 0xff)
>>>> +#define XHCI_EXT_PORT_MINOR(x)	(((x) >> 16) & 0xff)
>>>> +#define XHCI_EXT_PORT_COUNT(x)	(((x) >> 8) & 0xff)
>>>
>>> Again, don't copy defines from xhci.
>>>
>>> Looks like these should be moved to the xhci-ext-caps.h header along
>>> with struct xhci_protocol_caps.
>>
>> Moving the defines would be sufficient right ? Just wanted to know if
>> there is any reason you are suggesting to move the structure as well so
>> that I can update commit text accordingly.
> 
> The defines are used for parsing the members of struct
> xhci_protocol_caps and they belong together even if no driver has
> apparently ever used the structure.
Hi Johan,

Thanks for the suggestions. Will push out v10 today.

Regards,
Krishna,