diff options
| -rwxr-xr-x | scripts/kconfig.pl | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/scripts/kconfig.pl b/scripts/kconfig.pl index 7073e3b1ae..8113273538 100755 --- a/scripts/kconfig.pl +++ b/scripts/kconfig.pl @@ -80,13 +80,15 @@ sub config_add($$$) { return \%config; } -sub config_diff($$) { +sub config_diff($$$) { my $cfg1 = shift; my $cfg2 = shift; + my $new_only = shift; my %config; foreach my $config (keys %$cfg2) { if (!defined($cfg1->{$config}) or $cfg1->{$config} ne $cfg2->{$config}) { + next if $new_only and !defined($cfg1->{$config}) and $cfg2->{$config} eq '#undef'; $config{$config} = $cfg2->{$config}; } } @@ -146,7 +148,11 @@ sub parse_expr { } elsif ($arg eq '>') { my $arg1 = parse_expr($pos); my $arg2 = parse_expr($pos); - return config_diff($arg1, $arg2); + return config_diff($arg1, $arg2, 0); + } elsif ($arg eq '>+') { + my $arg1 = parse_expr($pos); + my $arg2 = parse_expr($pos); + return config_diff($arg1, $arg2, 1); } elsif ($arg eq '-') { my $arg1 = parse_expr($pos); my $arg2 = parse_expr($pos); |