linux-kernel - [PATCH v2 3/7] streamline_config.pl: remove prompt warnings for configs with defaults

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Message-ID: <20241014141345.5680-4-david.hunter.linux@gmail.com>
Date: Mon, 14 Oct 2024 10:13:33 -0400
From: David Hunter <david.hunter.linux@...il.com>
To: Masahiro Yamada <masahiroy@...nel.org>
Cc: David Hunter <david.hunter.linux@...il.com>,
	linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	shuah@...nel.org,
	javier.carrasco.cruz@...il.com,
	Steven Rostedt <rostedt@...dmis.org>
Subject: [PATCH v2 3/7] streamline_config.pl: remove prompt warnings for configs with defaults

Ignore process select warnings for config entries that have a default
option. Some config entries have no prompt, and nothing selects them, but
these config options are okay because they have a default option.

Signed-off-by: David Hunter <david.hunter.linux@...il.com>
---
V1 https://lore.kernel.org/all/20240913171205.22126-7-david.hunter.linux@gmail.com/

V2 
	- changed subject
	- put a space between "if" and "(" 
---
 scripts/kconfig/streamline_config.pl | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl
index 85f4712e2bf3..8e23faab5d22 100755
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -144,6 +144,7 @@ my %selects;
 my %prompts;
 my %objects;
 my %config2kfile;
+my %defaults;
 my $var;
 my $iflevel = 0;
 my @ifdeps;
@@ -222,6 +223,7 @@ sub read_kconfig {
 	    $depends{$config} .= " " . $1;
 	} elsif ($state ne "NONE" && /^\s*def(_(bool|tristate)|ault)\s+(\S.*)$/) {
 	    my $dep = $3;
+            $defaults{$config} = 1;
 	    if ($dep !~ /^\s*(y|m|n)\s*$/) {
 		$dep =~ s/.*\sif\s+//;
 		$depends{$config} .= " " . $dep;
@@ -523,8 +525,16 @@ sub parse_config_selects
 
     # If no possible config selected this, then something happened.
     if (!defined($next_config)) {
-	print STDERR "WARNING: $config is required, but nothing in the\n";
-	print STDERR "  current config selects it.\n";
+
+	# Some config options have no prompt, and nothing selects them, but
+	# they stay turned on once the final checks for the configs
+	# are done. These configs have a default option, so turn off the
+	# warnings for configs with default options.
+	if (!defined($defaults{$config})) {
+	    print STDERR "WARNING: $config is required, but nothing in the\n";
+	    print STDERR "  current config selects it.\n";
+	}
+
 	return;
     }
 
-- 
2.43.0