Hi,
Romain Izard <romain.izard.pro@xxxxxxxxx> writes:
> With commit "usb: gadget: don't couple configfs to legacy gadgets"
> it is possible to build a modular kernel with both built-in configfs
> support and modular legacy gadget drivers.
>
> But when building a kernel without modules, it is also necessary to be
> able to build with configfs but without any legacy gadget driver.
>
> Mark the choice for legacy gadget drivers as optional.
>
> Fixes: bc49d1d17dcf ("usb: gadget: don't couple configfs to legacy gadgets")
> Cc: <stable@xxxxxxxxxxxxxxx> # 4.9+
this is *NOT* a fix since this requirement didn't exist before.
> Signed-off-by: Romain Izard <romain.izard.pro@xxxxxxxxx>
> ---
> changes in v2:
> - Reword description
>
> drivers/usb/gadget/Kconfig | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
> index 8ad203296079..e157e9aa4f3d 100644
> --- a/drivers/usb/gadget/Kconfig
> +++ b/drivers/usb/gadget/Kconfig
> @@ -212,7 +212,7 @@ config USB_F_TCM
> # this first set of drivers all depend on bulk-capable hardware.
>
> config USB_CONFIGFS
> - tristate "USB functions configurable through configfs"
> + tristate "USB Gadget functions configurable through configfs"
unrelated change
> select USB_LIBCOMPOSITE
> help
> A Linux USB "gadget" can be set up through configfs.
> @@ -458,8 +458,9 @@ config USB_CONFIGFS_F_TCM
> UAS utilizes the USB 3.0 feature called streams support.
>
> choice
> - tristate "USB Gadget Drivers"
> + tristate "USB Gadget precomposed configurations"
unrelated change
> default USB_ETH
> + optional
> help
> A Linux "Gadget Driver" talks to the USB Peripheral Controller
> driver through the abstract "gadget" API. Some other operating
> @@ -476,6 +477,12 @@ choice
> not be able work with that controller, or might need to implement
> a less common variant of a device class protocol.
>
> + The available choices each represent a single precomposed USB
> + gadget configuration. In the device model, each option contains
> + both the device instanciation as a child for a USB gadget
> + controller, and the relevant drivers for each function declared
> + by the device.
unrelated change
--
balbi
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