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-rw-r--r--drivers/crypto/axis/artpec6_crypto.c1
-rw-r--r--drivers/crypto/cavium/nitrox/nitrox_main.c1
-rw-r--r--drivers/crypto/n2_core.c1
-rw-r--r--drivers/crypto/padlock-aes.c1
4 files changed, 4 insertions, 0 deletions
diff --git a/drivers/crypto/axis/artpec6_crypto.c b/drivers/crypto/axis/artpec6_crypto.c
index d2fb72811442..80fa04ef215f 100644
--- a/drivers/crypto/axis/artpec6_crypto.c
+++ b/drivers/crypto/axis/artpec6_crypto.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for ARTPEC-6 crypto block using the kernel asynchronous crypto api.
*
diff --git a/drivers/crypto/cavium/nitrox/nitrox_main.c b/drivers/crypto/cavium/nitrox/nitrox_main.c
index faa78f651238..fe825d0ef9ca 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_main.c
+++ b/drivers/crypto/cavium/nitrox/nitrox_main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#include <linux/aer.h>
#include <linux/delay.h>
#include <linux/firmware.h>
diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c
index 0d5d3d8eb680..760e72a5893b 100644
--- a/drivers/crypto/n2_core.c
+++ b/drivers/crypto/n2_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* n2_core.c: Niagara2 Stream Processing Unit (SPU) crypto support.
*
* Copyright (C) 2010, 2011 David S. Miller <davem@davemloft.net>
diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c
index 09d823d36d3a..ad020133da19 100644
--- a/drivers/crypto/padlock-aes.c
+++ b/drivers/crypto/padlock-aes.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Cryptographic API.
*