commit dca224628b6db75f7b2c381e524c80feca97cc4e
author Przemek Stekiel <przemyslaw.stekiel@mobica.com> Wed Jul 06 22:34:25 2022 +0200
committer Ronald Cron <ronald.cron@arm.com> Thu Sep 15 14:16:11 2022 +0200
tree 6f862829d947cc27ef046902da72494d1df6eed2
parent f937e669bdeaafedfe99462064b53aa20a818a85

ssl_tls13_select_sig_alg_to_psa_alg: optimize code

Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>

library/ssl_tls13_generic.c

diff --git a/library/ssl_tls13_generic.c b/library/ssl_tls13_generic.c
index 703605f..507c587 100644
--- a/library/ssl_tls13_generic.c
+++ b/library/ssl_tls13_generic.c
@@ -930,36 +930,27 @@
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 static psa_algorithm_t ssl_tls13_select_sig_alg_to_psa_alg( uint16_t sig_alg )
 {
-    psa_algorithm_t psa_alg = 0;
     switch( sig_alg )
     {
         case MBEDTLS_TLS1_3_SIG_ECDSA_SECP256R1_SHA256:
-            psa_alg = PSA_ALG_ECDSA( PSA_ALG_SHA_256 );
-            break;
+            return( PSA_ALG_ECDSA( PSA_ALG_SHA_256 ) );
         case MBEDTLS_TLS1_3_SIG_ECDSA_SECP384R1_SHA384:
-            psa_alg = PSA_ALG_ECDSA( PSA_ALG_SHA_384 );
-            break;
+            return( PSA_ALG_ECDSA( PSA_ALG_SHA_384 ) );
         case MBEDTLS_TLS1_3_SIG_ECDSA_SECP521R1_SHA512:
-            psa_alg = PSA_ALG_ECDSA( PSA_ALG_SHA_512 );
-            break;
+            return( PSA_ALG_ECDSA( PSA_ALG_SHA_512 ) );
         case MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA256:
-            psa_alg = PSA_ALG_RSA_PSS( PSA_ALG_SHA_256 );
-            break;
+            return( PSA_ALG_RSA_PSS( PSA_ALG_SHA_256 ) );
         case MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA384:
-            psa_alg = PSA_ALG_RSA_PSS( PSA_ALG_SHA_384 );
-            break;
+            return( PSA_ALG_RSA_PSS( PSA_ALG_SHA_384 ) );
         case MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA512:
-            psa_alg = PSA_ALG_RSA_PSS( PSA_ALG_SHA_512 );
-            break;
+            return( PSA_ALG_RSA_PSS( PSA_ALG_SHA_512 ) );
         case MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA256:
         case MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA384:
         case MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA512:
-            psa_alg = PSA_ALG_RSA_PKCS1V15_CRYPT;
-            break;
+            return( PSA_ALG_RSA_PKCS1V15_CRYPT );
         default:
-            break;
+            return( 0 );
     }
-    return( psa_alg );
 }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */