#!/bin/bash

print_usage () {
	echo usage: $0 config_file kernel_path
	exit 1
}

if [ $# -ne 2 ]
then
	print_usage
fi

confpath=`realpath $1`

cd $2

kconfiglist=`find . -name "*Kconfig*"`

for entry in `grep '^[^#]' $confpath | sed 's/=\S*//' | sed 's/CONFIG_//'`
do
	grep -I -q -r $entry $kconfiglist
	if [ $? -eq 1 ];
	then
		echo $entry
	fi
done