[PATCH] usb: move usb_calc_bus_time into common code

[Alan Stern]

On Fri, 19 Feb 2016, Arnd Bergmann wrote:

> The dwc2 dual-role USB controller driver has started calling
> usb_calc_bus_time, and does so regardless of whether it is
> being built as a host controller or gadget. In case all

Out of curiosity...  Why does dwc2 need to calculate bus times when it
is in device mode?

Alan Stern