Revert "usb: gadget: allow to enable legacy drivers without USB_ETH"

[Felipe Balbi <felipe.balbi@linux.intel.com>]

Hi again,

Felipe Balbi <felipe.balbi@linux.intel.com> writes:
> Bart Van Assche <bart.vanassche@wdc.com> writes:
>> Romain Izard reported the following about commit 7a9618a22aad:
>>
>>     As it reached Linus' tree with v4.15-rc3, I recently noticed the
>>     following commit that triggered a Kconfig request. I believe that this
>>     change does not make sense.
>>
>>     7a9618a22aa usb: gadget: allow to enable legacy drivers without USB_ETH
>>
>>     USB_ETH was not a dependency, but a default value for the choice. As the
>>     choice was marked as "optional", it was possible to remove this value
>>     when building.
>>
>>     After this modification, the Kconfig choice option does not contain
>>     anything anymore, so it is useless.  It is also possible to select
>>     multiple built-in legacy drivers. This builds, but will not work as
>>     expected as only one legacy driver can be bound to an USB device
>>     controller at a time.
>>
>> Hence revert commit 7a9618a22aad.
>>
>> Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
>> Cc: Romain Izard <romain.izard.pro@gmail.com>
>> Cc: Arnd Bergmann <arnd@arndb.de>
>> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
>> Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
>> Cc: Hannes Reinecke <hare@suse.com>
>> Cc: Nicholas Bellinger <nab@linux-iscsi.org>
>> Cc: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
>> Cc: linux-usb@vger.kernel.org
>> Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
>
> this doesn't apply at all. Patch is not properly formatted.

I'll revert the commit manually just to get this fixed upstream.