分类：Linux 内核与驱动开发

[现象]

UBoot 编译时出现：

Error: You must add new CONFIG options using Kconfig The following new ad-hoc CONFIG options were detected:

[方法] 修改其中一个即可

1. 增加对应的值到

u-boot\scripts\config_whitelist.txt

2. 注释掉顶层 Makefile 中下面几句：

quiet_cmd_cfgcheck = CFGCHK  $2
cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
		$(srctree)/scripts/config_whitelist.txt $(srctree)

改成：

#quiet_cmd_cfgcheck = CFGCHK  $2
#cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
#		$(srctree)/scripts/config_whitelist.txt $(srctree)

3. 修改 Error 为 Warning 防止编译中断

diff --git a/scripts/check-config.sh b/scripts/check-config.sh
index 6618dfb..9d2cfc6 100755
--- a/scripts/check-config.sh
+++ b/scripts/check-config.sh
@@ -37,14 +37,13 @@  cat `find ${srctree} -name "Kconfig*"` |sed -n \
 	-e 's/^menuconfig \([A-Za-z0-9_]*\).*$/CONFIG_\1/p' |sort |uniq > ${ok}
 comm -23 ${suspects} ${ok} >${new_adhoc}
 if [ -s ${new_adhoc} ]; then
-	echo "Error: You must add new CONFIG options using Kconfig"
+	echo "Warning: You must add new CONFIG options using Kconfig"
 	echo "The following new ad-hoc CONFIG options were detected:"
 	cat ${new_adhoc}
 	echo
 	echo "Please add these via Kconfig instead. Find a suitable Kconfig"
 	echo "file and add a 'config' or 'menuconfig' option."
 	# Don't delete the temporary files in case they are useful
-	exit 1
 else
 	rm ${suspects} ${ok} ${new_adhoc}
 fi