Index: sys/compat/linuxkpi/common/include/linux/kstrtox.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/kstrtox.h
+++ sys/compat/linuxkpi/common/include/linux/kstrtox.h
@@ -179,6 +179,13 @@
 	return (kstrtouint(cp, base, res));
 }
 
+static inline int
+kstrtos32(const char *cp, unsigned int base, int32_t *res)
+{
+
+	return (kstrtoint(cp, base, res));
+}
+
 static inline int
 kstrtos64(const char *cp, unsigned int base, int64_t *res)
 {