linux-kernel - Re: [PATCH v2 3/9] usb: dwc3: qcom: fix gadget-only builds

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Date:   Thu, 4 Aug 2022 11:18:33 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Johan Hovold <johan+linaro@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Felipe Balbi <balbi@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Krishna Kurapati <quic_kriskura@...cinc.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Doug Anderson <dianders@...omium.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Pavankumar Kondeti <quic_pkondeti@...cinc.com>,
        quic_ppratap@...cinc.com, quic_vpulyala@...cinc.com,
        linux-arm-msm@...r.kernel.org, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/9] usb: dwc3: qcom: fix gadget-only builds

Hi John,

On 8/4/22 08:09, Johan Hovold wrote:
> A recent change added a dependency to the USB host stack and broke
> gadget-only builds of the driver.
> 
> Fixes: 6895ea55c385 ("usb: dwc3: qcom: Configure wakeup interrupts during suspend")
> Reported-by: Randy Dunlap <rdunlap@...radead.org>
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>

LGTM. Thanks.

Reviewed-by: Randy Dunlap <rdunlap@...radead.org>

> ---
> 
> Changes in v2
>  - new patch
> 
>  drivers/usb/dwc3/dwc3-qcom.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
> index be2e3dd36440..e9364141661b 100644
> --- a/drivers/usb/dwc3/dwc3-qcom.c
> +++ b/drivers/usb/dwc3/dwc3-qcom.c
> @@ -310,8 +310,11 @@ static enum usb_device_speed dwc3_qcom_read_usb2_speed(struct dwc3_qcom *qcom)
>  	 * currently supports only 1 port per controller. So
>  	 * this is sufficient.
>  	 */
> +#ifdef CONFIG_USB
>  	udev = usb_hub_find_child(hcd->self.root_hub, 1);
> -
> +#else
> +	udev = NULL;
> +#endif
>  	if (!udev)
>  		return USB_SPEED_UNKNOWN;
>  

-- 
~Randy