On Wed, 23 Feb 2022 15:07:30 +0900 Akira Yokosawa <akiyks@xxxxxxxxx> wrote: > Currently, when no FILE argument is given following switches such > as -man, -rst, and -none, kernel-doc ends up in the error of (long > msg from perl folded): > > Use of uninitialized value $ARGV[0] in pattern match (m//) > at ./scripts/kernel-doc line 438. It's a warning not an error.