diff --git a/arch/s390/include/uapi/asm/zcrypt.h b/arch/s390/include/uapi/asm/zcrypt.h
index 494c34c507161ecce23e72fc4dd5cca2e2a0cf9a..8c5755f41ddeeef538f2d8452020cc1afd25e84f 100644
--- a/arch/s390/include/uapi/asm/zcrypt.h
+++ b/arch/s390/include/uapi/asm/zcrypt.h
@@ -20,6 +20,7 @@
 
 #include <linux/ioctl.h>
 #include <linux/compiler.h>
+#include <linux/types.h>
 
 /* Name of the zcrypt device driver. */
 #define ZCRYPT_NAME "zcrypt"
@@ -160,17 +161,17 @@ struct ica_xcRB {
  * @payload_len:	Payload length
  */
 struct ep11_cprb {
-	uint16_t	cprb_len;
+	__u16		cprb_len;
 	unsigned char	cprb_ver_id;
 	unsigned char	pad_000[2];
 	unsigned char	flags;
 	unsigned char	func_id[2];
-	uint32_t	source_id;
-	uint32_t	target_id;
-	uint32_t	ret_code;
-	uint32_t	reserved1;
-	uint32_t	reserved2;
-	uint32_t	payload_len;
+	__u32		source_id;
+	__u32		target_id;
+	__u32		ret_code;
+	__u32		reserved1;
+	__u32		reserved2;
+	__u32		payload_len;
 } __attribute__((packed));
 
 /**
@@ -179,8 +180,8 @@ struct ep11_cprb {
  * @dom_id:	Usage domain id
  */
 struct ep11_target_dev {
-	uint16_t ap_id;
-	uint16_t dom_id;
+	__u16 ap_id;
+	__u16 dom_id;
 };
 
 /**
@@ -195,14 +196,14 @@ struct ep11_target_dev {
  * @resp:		Addr to response block
  */
 struct ep11_urb {
-	uint16_t		targets_num;
-	uint64_t		targets;
-	uint64_t		weight;
-	uint64_t		req_no;
-	uint64_t		req_len;
-	uint64_t		req;
-	uint64_t		resp_len;
-	uint64_t		resp;
+	__u16		targets_num;
+	__u64		targets;
+	__u64		weight;
+	__u64		req_no;
+	__u64		req_len;
+	__u64		req;
+	__u64		resp_len;
+	__u64		resp;
 } __attribute__((packed));
 
 /**