This change reports a warning when "default n" is used. I have seen several "remove default n" patches, so I think it might be helpful to add this test in checkpatch.
tested: WARNING: 'default n' is the default value, no need to write it explicitly. + default n Signed-off-by: Miles Chen <miles.c...@mediatek.com> --- scripts/checkpatch.pl | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 342c7c781ba5..6531b5757c6b 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -3005,6 +3005,13 @@ sub process { "Use of boolean is deprecated, please use bool instead.\n" . $herecurr); } +# avoid redundant 'default n' + if ($realfile =~ /Kconfig/ && + $line =~ /^\+\s*\bdefault n\b/) { + WARN("AVOID_DEFAULT_N", + "'default n' is the default value, no need to write it explicitly.\n" . $herecurr); + } + if (($realfile =~ /Makefile.*/ || $realfile =~ /Kbuild.*/) && ($line =~ /\+(EXTRA_[A-Z]+FLAGS).*/)) { my $flag = $1; -- 2.18.0