diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index b48e20dd94e96a52f845782c2dd134b015794004..5a7b60a65f967e8db46819144e725f7035854ee5 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Cryptographic API.
  *
diff --git a/arch/s390/crypto/arch_random.c b/arch/s390/crypto/arch_random.c
index 36aefc07d10cda9e9b28705d057952558d86e8d3..7ad00354fb25c8d940fc5f57b85a50acbeccf031 100644
--- a/arch/s390/crypto/arch_random.c
+++ b/arch/s390/crypto/arch_random.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * s390 arch random implementation.
  *
diff --git a/arch/s390/crypto/crc32-vx.c b/arch/s390/crypto/crc32-vx.c
index 992e630c227b58febc6e489f25e439979a2df4ca..436865926c26e00b0652c5330f45dd7365962703 100644
--- a/arch/s390/crypto/crc32-vx.c
+++ b/arch/s390/crypto/crc32-vx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Crypto-API module for CRC-32 algorithms implemented with the
  * z/Architecture Vector Extension Facility.
diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c
index 0d296662bbf0aba03dbaa79de182114e315b6184..c871b1086408b0a7141d6b0121e1df834eaf63be 100644
--- a/arch/s390/crypto/des_s390.c
+++ b/arch/s390/crypto/des_s390.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Cryptographic API.
  *
diff --git a/arch/s390/crypto/ghash_s390.c b/arch/s390/crypto/ghash_s390.c
index 564616d48d8bd885ce31c232843f02bbed1d2b3f..3b7f96c9eead8f994e979603216fd0d190fc9e42 100644
--- a/arch/s390/crypto/ghash_s390.c
+++ b/arch/s390/crypto/ghash_s390.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Cryptographic API.
  *
diff --git a/arch/s390/crypto/paes_s390.c b/arch/s390/crypto/paes_s390.c
index a4e903ed7e21c0ccc7ceb66944ac6b43662003ea..53926a2b72850f5ff2329e59c5d351c20f802f4e 100644
--- a/arch/s390/crypto/paes_s390.c
+++ b/arch/s390/crypto/paes_s390.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Cryptographic API.
  *
diff --git a/arch/s390/crypto/prng.c b/arch/s390/crypto/prng.c
index 3e47c4a0f18b346f4ce9eb58ddb4928bcfe517a3..a97a1802cfb4d37d6e0ef5b9a9305aaf45febff7 100644
--- a/arch/s390/crypto/prng.c
+++ b/arch/s390/crypto/prng.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2006, 2015
  * Author(s): Jan Glauber <jan.glauber@de.ibm.com>
diff --git a/arch/s390/crypto/sha.h b/arch/s390/crypto/sha.h
index 10f2007900790919f41ac6f3d3bd425c9decebb6..19d344d493925b82456da8b6b2a375f1ce9f4137 100644
--- a/arch/s390/crypto/sha.h
+++ b/arch/s390/crypto/sha.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Cryptographic API.
  *
diff --git a/arch/s390/crypto/sha256_s390.c b/arch/s390/crypto/sha256_s390.c
index 53c277999a2866b3aea6e9cc412ab6fc55aeb124..4a31d6416d4140d11a927e6c3e6ae3acf2c5ef54 100644
--- a/arch/s390/crypto/sha256_s390.c
+++ b/arch/s390/crypto/sha256_s390.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Cryptographic API.
  *
diff --git a/arch/s390/crypto/sha512_s390.c b/arch/s390/crypto/sha512_s390.c
index 2f4caa1ef123d1e6ce1bbf332ba045510e12ae07..e22ed139d0b63ee5700cd1968077707d609ce502 100644
--- a/arch/s390/crypto/sha512_s390.c
+++ b/arch/s390/crypto/sha512_s390.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Cryptographic API.
  *
diff --git a/arch/s390/crypto/sha_common.c b/arch/s390/crypto/sha_common.c
index c740f77285b2a6cf9d468b84a4c357cc8b6eba17..d359ec7fdd6bfa8621e1fd822377f9d77e7f32c3 100644
--- a/arch/s390/crypto/sha_common.c
+++ b/arch/s390/crypto/sha_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Cryptographic API.
  *