From bc20d12eca43028548e5a4f655c2070e57bede1c Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Mon, 29 Apr 2013 15:17:40 -0400
Subject: [PATCH] localmodconfig: Add debug prints for dependencies of module
 configs

When a config for a module is added to the list to save in the final
config file, add a print to show what dependencies are used. This is
useful to debug when a config is disabled by the make oldconfig after
localmodconfig is finished.

This print only appears if the environment variable LOCALMODCONFIG_DEBUG
is defined.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 scripts/kconfig/streamline_config.pl | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl
index 33689396953a..343a56863660 100644
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -396,6 +396,15 @@ foreach my $module (keys(%modules)) {
 	foreach my $conf (@arr) {
 	    $configs{$conf} = $module;
 	    dprint "$conf added by direct ($module)\n";
+	    if ($debugprint) {
+		my $c=$conf;
+		$c =~ s/^CONFIG_//;
+		if (defined($depends{$c})) {
+		    dprint " deps = $depends{$c}\n";
+		} else {
+		    dprint " no deps\n";
+		}
+	    }
 	}
     } else {
 	# Most likely, someone has a custom (binary?) module loaded.