On Fri, Dec 23, 2022 at 03:31:51PM -0800, Wesley Cheng wrote: > +EXPORT_SYMBOL(snd_usb_autoresume); EXPORT_SYMBOL_GPL()? I have to ask... Same for the other ones here. > +EXPORT_SYMBOL(find_format); That is not a valid global symbol name to use, you know better than this... thanks, greg k-h