On Jul 29 2019, Atish Patra <Atish.Patra@xxxxxxx> wrote: > Strange. We never saw this error. It is part of CONFIG_KERNEL_HEADER_TEST. Everyone developing a driver should enable it. > #include <linux/types.h> > > Can you try it at your end and confirm please ? Confirmed. Andreas. -- Andreas Schwab, SUSE Labs, schwab@xxxxxxx GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."