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

[Heinrich Schuchardt <xypron.glpk@gmx.de>]

On 4/21/20 2:37 AM, AKASHI Takahiro wrote:
> By adding extra symbols, we can now avoid including x509_parser and
> pkcs7_parser.h files multiple times.
>
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
> Suggested-by: Heinrich Schuchardt <xypron.glpk@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 (dhowells at 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 (dhowells at 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"

As pkcs7_parser.h includes x509_parser.h there is no reason to include
it again.

>
>  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"

Same here.

The rest is correct and should be merged.

Best regards

Heinrich

>
>  const efi_guid_t efi_guid_image_security_database =
>  		EFI_IMAGE_SECURITY_DATABASE_GUID;
>