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SubjectRe: [PATCH] HID: wacom: add USB_HID dependency
On Fri, Jul 28, 2017 at 4:07 PM, Jason Gerecke <> wrote:
> On July 28, 2017 6:18:00 AM PDT, Arnd Bergmann <> wrote:
>>The driver has gained a compile-time dependency that we should
>>express in Kconfig to avoid this link error:
> Would conditional compilation be an acceptable alternative to adding
> a dependency? The USB_HID code is only used to check if the driver
> is working with a USB device. With USB_HID disabled, there's no need
> for the check so there's no need for the dependency.

I think that should work, e.g. you could replace the hid_is_using_ll_driver
and 'extern' defintions with a helper per ll-driver like

extern bool hid_is_using_usb_driver(struct hid_device *hdev)
static inline bool hid_is_using_usb_driver(struct hid_device *hdev)
return false;

but is it worth it to avoid the dependency?


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