On Mon, 2021-05-17 at 17:30 +0800, Tiezhu Yang wrote: > After commit 45107ff6d526 ("checkpatch: if no filenames then read stdin"), > if no filenames are given, it will read patch from stdin rather than exit > directly. This means the script waits for input indefinitely, which > confuses new checkpatch users at first. > > Add some basic documentation on this behaviour of checkpatch to lower > the confusion. You might also consider adding something to the checkpatch --help content in checkpatch itself. > diff --git a/Documentation/dev-tools/checkpatch.rst b/Documentation/dev-tools/checkpatch.rst [] > @@ -22,6 +22,8 @@ Usage:: > > ./scripts/checkpatch.pl [OPTION]... [FILE]... > > +When FILE is -, or absent, checkpatch reads from standard input. > + > Available options: