diff --git a/sys/compat/linuxkpi/common/include/linux/string.h b/sys/compat/linuxkpi/common/include/linux/string.h
--- a/sys/compat/linuxkpi/common/include/linux/string.h
+++ b/sys/compat/linuxkpi/common/include/linux/string.h
@@ -167,4 +167,20 @@
 	return (strncmp(str, prefix, len) == 0 ? len : 0);
 }
 
+static inline ssize_t
+strscpy(char* dst, const char* src, size_t len)
+{
+	size_t i;
+
+	if (len <= INT_MAX) {
+		for (i = 0; i < len; i++)
+			if ('\0' == (dst[i] = src[i]))
+				return ((ssize_t)i);
+		if (i != 0)
+			dst[--i] = '\0';
+	}
+
+	return (-E2BIG);
+}
+
 #endif					/* _LINUX_STRING_H_ */