diff --git a/include/crypto/sha1_base.h b/include/crypto/sha1_base.h
index 63c14f2dc7bd..20fd1f7468af 100644
--- a/include/crypto/sha1_base.h
+++ b/include/crypto/sha1_base.h
@@ -5,6 +5,9 @@
  * Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>
  */
 
+#ifndef _CRYPTO_SHA1_BASE_H
+#define _CRYPTO_SHA1_BASE_H
+
 #include <crypto/internal/hash.h>
 #include <crypto/sha.h>
 #include <linux/crypto.h>
@@ -101,3 +104,5 @@ static inline int sha1_base_finish(struct shash_desc *desc, u8 *out)
 	*sctx = (struct sha1_state){};
 	return 0;
 }
+
+#endif /* _CRYPTO_SHA1_BASE_H */
diff --git a/include/crypto/sha256_base.h b/include/crypto/sha256_base.h
index 59159bc944f5..b50a035a2bc7 100644
--- a/include/crypto/sha256_base.h
+++ b/include/crypto/sha256_base.h
@@ -5,6 +5,9 @@
  * Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>
  */
 
+#ifndef _CRYPTO_SHA256_BASE_H
+#define _CRYPTO_SHA256_BASE_H
+
 #include <crypto/internal/hash.h>
 #include <crypto/sha.h>
 #include <linux/crypto.h>
@@ -123,3 +126,5 @@ static inline int sha256_base_finish(struct shash_desc *desc, u8 *out)
 	*sctx = (struct sha256_state){};
 	return 0;
 }
+
+#endif /* _CRYPTO_SHA256_BASE_H */
diff --git a/include/crypto/sha512_base.h b/include/crypto/sha512_base.h
index 099be8027f3f..fb19c77494dc 100644
--- a/include/crypto/sha512_base.h
+++ b/include/crypto/sha512_base.h
@@ -5,6 +5,9 @@
  * Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>
  */
 
+#ifndef _CRYPTO_SHA512_BASE_H
+#define _CRYPTO_SHA512_BASE_H
+
 #include <crypto/internal/hash.h>
 #include <crypto/sha.h>
 #include <linux/crypto.h>
@@ -126,3 +129,5 @@ static inline int sha512_base_finish(struct shash_desc *desc, u8 *out)
 	*sctx = (struct sha512_state){};
 	return 0;
 }
+
+#endif /* _CRYPTO_SHA512_BASE_H */
diff --git a/include/crypto/sm3_base.h b/include/crypto/sm3_base.h
index 31891b0dc7e3..1cbf9aa1fe52 100644
--- a/include/crypto/sm3_base.h
+++ b/include/crypto/sm3_base.h
@@ -6,6 +6,9 @@
  * Written by Gilad Ben-Yossef <gilad@benyossef.com>
  */
 
+#ifndef _CRYPTO_SM3_BASE_H
+#define _CRYPTO_SM3_BASE_H
+
 #include <crypto/internal/hash.h>
 #include <crypto/sm3.h>
 #include <linux/crypto.h>
@@ -104,3 +107,5 @@ static inline int sm3_base_finish(struct shash_desc *desc, u8 *out)
 	*sctx = (struct sm3_state){};
 	return 0;
 }
+
+#endif /* _CRYPTO_SM3_BASE_H */
diff --git a/include/uapi/linux/cryptouser.h b/include/uapi/linux/cryptouser.h
index 4dc1603919ce..5730c67f0617 100644
--- a/include/uapi/linux/cryptouser.h
+++ b/include/uapi/linux/cryptouser.h
@@ -19,6 +19,9 @@
  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#ifndef _UAPI_LINUX_CRYPTOUSER_H
+#define _UAPI_LINUX_CRYPTOUSER_H
+
 #include <linux/types.h>
 
 /* Netlink configuration messages.  */
@@ -198,3 +201,5 @@ struct crypto_report_acomp {
 
 #define CRYPTO_REPORT_MAXSIZE (sizeof(struct crypto_user_alg) + \
 			       sizeof(struct crypto_report_blkcipher))
+
+#endif /* _UAPI_LINUX_CRYPTOUSER_H */