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-rwxr-xr-xscripts/build-whitelist.sh15
1 files changed, 13 insertions, 2 deletions
diff --git a/scripts/build-whitelist.sh b/scripts/build-whitelist.sh
index 7cf7a668c16..f169eaa3b23 100755
--- a/scripts/build-whitelist.sh
+++ b/scripts/build-whitelist.sh
@@ -45,7 +45,18 @@ cat `find . -name "Kconfig*"` |sed -n \
# Use only the options that are present in the first file but not the second.
comm -23 scripts/config_whitelist.txt.tmp1 scripts/config_whitelist.txt.tmp2 \
- |sort |uniq >scripts/config_whitelist.txt
-rm scripts/config_whitelist.txt.tmp1 scripts/config_whitelist.txt.tmp2
+ |sort |uniq >scripts/config_whitelist.txt.tmp3
+
+# If scripts/config_whitelist.txt already exists, take the intersection of the
+# current list and the new one. We do not want to increase whitelist options.
+if [ -r scripts/config_whitelist.txt ]; then
+ comm -12 scripts/config_whitelist.txt.tmp3 scripts/config_whitelist.txt \
+ > scripts/config_whitelist.txt.tmp4
+ mv scripts/config_whitelist.txt.tmp4 scripts/config_whitelist.txt
+else
+ mv scripts/config_whitelist.txt.tmp3 scripts/config_whitelist.txt
+fi
+
+rm scripts/config_whitelist.txt.tmp*
unset LC_ALL LC_COLLATE