On Tue, Jan 26, 2021 at 05:49:13PM +0800, Ray Chi wrote: > Currently, role init functions are used in dwc3 driver but > can't be called from kernel modules. > dwc3_host_init > dwc3_host_exit > dwc3_gadget_init > dwc3_gadget_exit > dwc3_event_buffers_setup > dwc3_event_buffers_cleanup > > If other kernel modules want to use these functions, it needs > EXPORT_SYMBOL_GPL() to get compile pass. What "other kernel modules" would want to use it an why? Please specify that in your patch, and only resend it togethe with the patches actually adding/modifying those modules.