--- a/include/linux/kstrtox.h
+++ b/include/linux/kstrtox.h
@@ -147,4 +147,9 @@ extern long simple_strtol(const char *,c
 extern unsigned long long simple_strtoull(const char *,char **,unsigned int);
 extern long long simple_strtoll(const char *,char **,unsigned int);
 
+static inline int strtobool(const char *s, bool *res)
+{
+	return kstrtobool(s, res);
+}
+
 #endif	/* _LINUX_KSTRTOX_H */