linux-kernel - Re: [PATCH v1 2/2] usb: host: ehci-tegra: Select USB

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Message-ID: <20210320152807.GA606911@rowland.harvard.edu>
Date:   Sat, 20 Mar 2021 11:28:07 -0400
From:   Alan Stern <stern@...land.harvard.edu>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Peter Chen <Peter.Chen@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Felipe Balbi <balbi@...nel.org>,
        Arnd Bergmann <arnd@...nel.org>, linux-tegra@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 2/2] usb: host: ehci-tegra: Select USB_GADGET Kconfig
 option

On Sat, Mar 20, 2021 at 06:19:15PM +0300, Dmitry Osipenko wrote:
> Select USB_GADGET Kconfig option in order to fix build failure which
> happens because ChipIdea driver has a build dependency on both USB_GADGET
> and USB_EHCI_HCD, while USB_EHCI_TEGRA force-selects the ChipIdea driver
> without taking into account the tristate USB_GADGET dependency. It's not
> possible to do anything about the cyclic dependency of the Kconfig
> options, but USB_EHCI_TEGRA is now a deprecated option that isn't used
> by defconfigs and USB_GADGET is wanted on Tegra by default, hence it's
> okay to have a bit clunky workaround for it.
> 
> Fixes: c3590c7656fb ("usb: host: ehci-tegra: Remove the driver")
> Reported-by: kernel test robot <lkp@...el.com>
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>

Acked-by: Alan Stern <stern@...land.harvard.edu>

> ---
>  drivers/usb/host/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
> index b94f2a070c05..df9428f1dc5e 100644
> --- a/drivers/usb/host/Kconfig
> +++ b/drivers/usb/host/Kconfig
> @@ -272,6 +272,7 @@ config USB_EHCI_TEGRA
>  	select USB_CHIPIDEA
>  	select USB_CHIPIDEA_HOST
>  	select USB_CHIPIDEA_TEGRA
> +	select USB_GADGET
>  	help
>  	  This option is deprecated now and the driver was removed, use
>  	  USB_CHIPIDEA_TEGRA instead.
> -- 
> 2.30.2
>