[PATCH] lib/crypto, efi_loader: avoid multiple inclusions of header files

[AKASHI Takahiro]

By adding extra symbols, we can now avoid including x509_parser and
pkcs7_parser.h files multiple times.

Signed-off-by: AKASHI Takahiro <takahiro.aka...@linaro.org>
Suggested-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
 lib/crypto/pkcs7_parser.h         | 4 ++++
 lib/crypto/x509_parser.h          | 4 ++++
 lib/efi_loader/efi_image_loader.c | 1 +
 lib/efi_loader/efi_signature.c    | 1 +
 4 files changed, 10 insertions(+)

diff --git a/lib/crypto/pkcs7_parser.h b/lib/crypto/pkcs7_parser.h
index 6565fdc2d4ca..b8234da45a6a 100644
--- a/lib/crypto/pkcs7_parser.h
+++ b/lib/crypto/pkcs7_parser.h
@@ -5,6 +5,9 @@
  * Written by David Howells (dhowe...@redhat.com)
  */
 
+#ifndef _PKCS7_PARSER_H
+#define _PKCS7_PARSER_H
+
 #include <linux/oid_registry.h>
 #include <crypto/pkcs7.h>
 #include "x509_parser.h"
@@ -63,3 +66,4 @@ struct pkcs7_message {
        size_t          data_hdrlen;    /* Length of Data ASN.1 header */
        const void      *data;          /* Content Data (or 0) */
 };
+#endif /* _PKCS7_PARSER_H */
diff --git a/lib/crypto/x509_parser.h b/lib/crypto/x509_parser.h
index c233f136fb35..4cbdc1d6612d 100644
--- a/lib/crypto/x509_parser.h
+++ b/lib/crypto/x509_parser.h
@@ -5,6 +5,9 @@
  * Written by David Howells (dhowe...@redhat.com)
  */
 
+#ifndef _X509_PARSER_H
+#define _X509_PARSER_H
+
 #include <linux/time.h>
 #include <crypto/public_key.h>
 #include <keys/asymmetric-type.h>
@@ -55,3 +58,4 @@ extern int x509_decode_time(time64_t *_t,  size_t hdrlen,
  */
 extern int x509_get_sig_params(struct x509_certificate *cert);
 extern int x509_check_for_self_signed(struct x509_certificate *cert);
+#endif /* _X509_PARSER_H */
diff --git a/lib/efi_loader/efi_image_loader.c 
b/lib/efi_loader/efi_image_loader.c
index 6c270ce94f44..899adf8493d0 100644
--- a/lib/efi_loader/efi_image_loader.c
+++ b/lib/efi_loader/efi_image_loader.c
@@ -14,6 +14,7 @@
 #include <pe.h>
 #include <sort.h>
 #include "../lib/crypto/pkcs7_parser.h"
+#include "../lib/crypto/x509_parser.h"
 
 const efi_guid_t efi_global_variable_guid = EFI_GLOBAL_VARIABLE_GUID;
 const efi_guid_t efi_guid_device_path = EFI_DEVICE_PATH_PROTOCOL_GUID;
diff --git a/lib/efi_loader/efi_signature.c b/lib/efi_loader/efi_signature.c
index 658e3547da37..6ad09e4acbd7 100644
--- a/lib/efi_loader/efi_signature.c
+++ b/lib/efi_loader/efi_signature.c
@@ -15,6 +15,7 @@
 #include <u-boot/rsa.h>
 #include <u-boot/sha256.h>
 #include "../lib/crypto/pkcs7_parser.h"
+#include "../lib/crypto/x509_parser.h"
 
 const efi_guid_t efi_guid_image_security_database =
                EFI_IMAGE_SECURITY_DATABASE_GUID;
-- 
2.25.2