v4.19.13 snapshot.
diff --git a/drivers/s390/crypto/ap_debug.h b/drivers/s390/crypto/ap_debug.h
new file mode 100644
index 0000000..dc675eb
--- /dev/null
+++ b/drivers/s390/crypto/ap_debug.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright IBM Corp. 2016
+ * Author(s): Harald Freudenberger <freude@de.ibm.com>
+ */
+#ifndef AP_DEBUG_H
+#define AP_DEBUG_H
+
+#include <asm/debug.h>
+
+#define DBF_ERR 3 /* error conditions */
+#define DBF_WARN 4 /* warning conditions */
+#define DBF_INFO 5 /* informational */
+#define DBF_DEBUG 6 /* for debugging only */
+
+#define RC2ERR(rc) ((rc) ? DBF_ERR : DBF_INFO)
+#define RC2WARN(rc) ((rc) ? DBF_WARN : DBF_INFO)
+
+#define DBF_MAX_SPRINTF_ARGS 5
+
+#define AP_DBF(...) \
+ debug_sprintf_event(ap_dbf_info, ##__VA_ARGS__)
+
+extern debug_info_t *ap_dbf_info;
+
+#endif /* AP_DEBUG_H */