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SubjectRe: [PATCH v2 3/9] usb: dwc3: qcom: fix gadget-only builds
On Thu, Aug 04, 2022 at 05:09:55PM +0200, 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@infradead.org>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.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

Perhaps the check should be moved to the caller instead? This function still
references "usb_hcd" struct and I don't think that's intended for gadget only
mode.

Thanks,
Mani

> if (!udev)
> return USB_SPEED_UNKNOWN;
>
> --
> 2.35.1
>

--
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