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Silence warnings about unused return value

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This macro is introduced here for use in deprecated functions. It may also
be useful in user code, so it is in a public header.

Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Mateusz Starzyk 2021-08-05 13:56:48 +02:00 committed by Gilles Peskine
parent 8472a10594
commit 15a7420d3c
2 changed files with 9 additions and 2 deletions
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7
include/mbedtls/platform_util.h
View file

@ -201,6 +201,13 @@ MBEDTLS_DEPRECATED typedef int mbedtls_deprecated_numeric_constant_t;
*/
#define MBEDTLS_CHECK_RETURN_OPTIONAL
/** \def MBEDTLS_IGNORE_RETURN
*
* Silences warning about unused return value given by functions
* with \c MBEDTLS_CHECK_RETURN attribute.
*/
#define MBEDTLS_IGNORE_RETURN(result) if( result ) {}
/**
* \brief Securely zeroize a buffer
*

4
library/aes.c
View file

@ -926,7 +926,7 @@ void mbedtls_aes_encrypt( mbedtls_aes_context *ctx,
const unsigned char input[16],
unsigned char output[16] )
{
mbedtls_internal_aes_encrypt( ctx, input, output );
MBEDTLS_IGNORE_RETURN( mbedtls_internal_aes_encrypt( ctx, input, output ) );
}
#endif /* !MBEDTLS_DEPRECATED_REMOVED */
@ -999,7 +999,7 @@ void mbedtls_aes_decrypt( mbedtls_aes_context *ctx,
const unsigned char input[16],
unsigned char output[16] )
{
mbedtls_internal_aes_decrypt( ctx, input, output );
MBEDTLS_IGNORE_RETURN( mbedtls_internal_aes_decrypt( ctx, input, output ) );
}
#endif /* !MBEDTLS_DEPRECATED_REMOVED */