YueHaibing <yuehaibing@xxxxxxxxxx> writes: > If USB_NET_CDC_NCM is y and USB_NET_CDCETHER is m, build fails: > > drivers/net/usb/cdc_ncm.o:(.rodata+0x1d8): undefined reference to `usbnet_cdc_update_filter' > > Select USB_NET_CDCETHER for USB_NET_CDC_NCM to fix this. Ouch. For some reason I assumed that was always selected with usbnet. Thanks for fixing. Bjørn