diff --git a/include/psa/crypto_struct.h b/include/psa/crypto_struct.h
index 47012fdd00..4060074454 100644
--- a/include/psa/crypto_struct.h
+++ b/include/psa/crypto_struct.h
@@ -92,7 +92,7 @@ struct psa_hash_operation_s
     psa_driver_hash_context_t ctx;
 };
 
-#define PSA_HASH_OPERATION_INIT {0, {0}}
+#define PSA_HASH_OPERATION_INIT { 0, { 0 } }
 static inline struct psa_hash_operation_s psa_hash_operation_init( void )
 {
     const struct psa_hash_operation_s v = PSA_HASH_OPERATION_INIT;
@@ -117,7 +117,7 @@ struct psa_cipher_operation_s
     psa_driver_cipher_context_t ctx;
 };
 
-#define PSA_CIPHER_OPERATION_INIT {0, 0, 0, 0, {0}}
+#define PSA_CIPHER_OPERATION_INIT { 0, 0, 0, 0, { 0 } }
 static inline struct psa_cipher_operation_s psa_cipher_operation_init( void )
 {
     const struct psa_cipher_operation_s v = PSA_CIPHER_OPERATION_INIT;
@@ -142,7 +142,7 @@ struct psa_mac_operation_s
     psa_driver_mac_context_t ctx;
 };
 
-#define PSA_MAC_OPERATION_INIT {0, 0, 0, {0}}
+#define PSA_MAC_OPERATION_INIT { 0, 0, 0, { 0 } }
 static inline struct psa_mac_operation_s psa_mac_operation_init( void )
 {
     const struct psa_mac_operation_s v = PSA_MAC_OPERATION_INIT;
@@ -163,7 +163,7 @@ struct psa_aead_operation_s
     } ctx;
 };
 
-#define PSA_AEAD_OPERATION_INIT {0, 0, 0, 0, 0, {0}}
+#define PSA_AEAD_OPERATION_INIT { 0, 0, 0, 0, 0, { 0 } }
 static inline struct psa_aead_operation_s psa_aead_operation_init( void )
 {
     const struct psa_aead_operation_s v = PSA_AEAD_OPERATION_INIT;
@@ -223,7 +223,7 @@ typedef struct psa_tls12_prf_key_derivation_s
 
     uint8_t Ai[PSA_HASH_MAX_SIZE];
 
-    /* `HMAC_hash( prk, A(i) + seed )` in the notation of RFC 5246, Sect. 5. */
+    /* `HMAC_hash( prk, A( i ) + seed )` in the notation of RFC 5246, Sect. 5. */
     uint8_t output_block[PSA_HASH_MAX_SIZE];
 } psa_tls12_prf_key_derivation_t;
 #endif /* MBEDTLS_PSA_BUILTIN_ALG_TLS12_PRF) ||
@@ -249,8 +249,9 @@ struct psa_key_derivation_s
 };
 
 /* This only zeroes out the first byte in the union, the rest is unspecified. */
-#define PSA_KEY_DERIVATION_OPERATION_INIT {0, 0, 0, {0}}
-static inline struct psa_key_derivation_s psa_key_derivation_operation_init( void )
+#define PSA_KEY_DERIVATION_OPERATION_INIT { 0, 0, 0, { 0 } }
+static inline
+struct psa_key_derivation_s psa_key_derivation_operation_init( void )
 {
     const struct psa_key_derivation_s v = PSA_KEY_DERIVATION_OPERATION_INIT;
     return( v );
@@ -264,7 +265,7 @@ struct psa_key_policy_s
 };
 typedef struct psa_key_policy_s psa_key_policy_t;
 
-#define PSA_KEY_POLICY_INIT {0, 0, 0}
+#define PSA_KEY_POLICY_INIT { 0, 0, 0 }
 static inline struct psa_key_policy_s psa_key_policy_init( void )
 {
     const struct psa_key_policy_s v = PSA_KEY_POLICY_INIT;
@@ -276,7 +277,7 @@ static inline struct psa_key_policy_s psa_key_policy_init( void )
 typedef uint16_t psa_key_bits_t;
 /* The maximum value of the type used to represent bit-sizes.
  * This is used to mark an invalid key size. */
-#define PSA_KEY_BITS_TOO_LARGE ( (psa_key_bits_t) ( -1 ) )
+#define PSA_KEY_BITS_TOO_LARGE          ( ( psa_key_bits_t ) -1 )
 /* The maximum size of a key in bits.
  * Currently defined as the maximum that can be represented, rounded down
  * to a whole number of bytes.
@@ -317,7 +318,10 @@ typedef struct
     psa_key_attributes_flag_t flags;
 } psa_core_key_attributes_t;
 
-#define PSA_CORE_KEY_ATTRIBUTES_INIT {PSA_KEY_TYPE_NONE, 0, PSA_KEY_LIFETIME_VOLATILE, MBEDTLS_SVC_KEY_ID_INIT, PSA_KEY_POLICY_INIT, 0}
+#define PSA_CORE_KEY_ATTRIBUTES_INIT { PSA_KEY_TYPE_NONE, 0,            \
+                                       PSA_KEY_LIFETIME_VOLATILE,       \
+                                       MBEDTLS_SVC_KEY_ID_INIT,         \
+                                       PSA_KEY_POLICY_INIT, 0 }
 
 struct psa_key_attributes_s
 {
@@ -330,9 +334,9 @@ struct psa_key_attributes_s
 };
 
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
-#define PSA_KEY_ATTRIBUTES_INIT {PSA_CORE_KEY_ATTRIBUTES_INIT, 0, NULL, 0}
+#define PSA_KEY_ATTRIBUTES_INIT { PSA_CORE_KEY_ATTRIBUTES_INIT, 0, NULL, 0 }
 #else
-#define PSA_KEY_ATTRIBUTES_INIT {PSA_CORE_KEY_ATTRIBUTES_INIT, NULL, 0}
+#define PSA_KEY_ATTRIBUTES_INIT { PSA_CORE_KEY_ATTRIBUTES_INIT, NULL, 0 }
 #endif
 
 static inline struct psa_key_attributes_s psa_key_attributes_init( void )
@@ -358,7 +362,7 @@ static inline void psa_set_key_id( psa_key_attributes_t *attributes,
 }
 
 static inline mbedtls_svc_key_id_t psa_get_key_id(
-    const psa_key_attributes_t *attributes)
+    const psa_key_attributes_t *attributes )
 {
     return( attributes->core.id );
 }
@@ -371,8 +375,8 @@ static inline void mbedtls_set_key_owner_id( psa_key_attributes_t *attributes,
 }
 #endif
 
-static inline void psa_set_key_lifetime(psa_key_attributes_t *attributes,
-                                        psa_key_lifetime_t lifetime)
+static inline void psa_set_key_lifetime( psa_key_attributes_t *attributes,
+                                        psa_key_lifetime_t lifetime )
 {
     attributes->core.lifetime = lifetime;
     if( PSA_KEY_LIFETIME_IS_VOLATILE( lifetime ) )
@@ -386,44 +390,44 @@ static inline void psa_set_key_lifetime(psa_key_attributes_t *attributes,
 }
 
 static inline psa_key_lifetime_t psa_get_key_lifetime(
-    const psa_key_attributes_t *attributes)
+    const psa_key_attributes_t *attributes )
 {
     return( attributes->core.lifetime );
 }
 
-static inline void psa_set_key_usage_flags(psa_key_attributes_t *attributes,
-                                           psa_key_usage_t usage_flags)
+static inline void psa_set_key_usage_flags( psa_key_attributes_t *attributes,
+                                           psa_key_usage_t usage_flags )
 {
     attributes->core.policy.usage = usage_flags;
 }
 
 static inline psa_key_usage_t psa_get_key_usage_flags(
-    const psa_key_attributes_t *attributes)
+    const psa_key_attributes_t *attributes )
 {
     return( attributes->core.policy.usage );
 }
 
-static inline void psa_set_key_algorithm(psa_key_attributes_t *attributes,
-                                         psa_algorithm_t alg)
+static inline void psa_set_key_algorithm( psa_key_attributes_t *attributes,
+                                         psa_algorithm_t alg )
 {
     attributes->core.policy.alg = alg;
 }
 
 static inline psa_algorithm_t psa_get_key_algorithm(
-    const psa_key_attributes_t *attributes)
+    const psa_key_attributes_t *attributes )
 {
     return( attributes->core.policy.alg );
 }
 
 /* This function is declared in crypto_extra.h, which comes after this
  * header file, but we need the function here, so repeat the declaration. */
-psa_status_t psa_set_key_domain_parameters(psa_key_attributes_t *attributes,
+psa_status_t psa_set_key_domain_parameters( psa_key_attributes_t *attributes,
                                            psa_key_type_t type,
                                            const uint8_t *data,
-                                           size_t data_length);
+                                           size_t data_length );
 
-static inline void psa_set_key_type(psa_key_attributes_t *attributes,
-                                    psa_key_type_t type)
+static inline void psa_set_key_type( psa_key_attributes_t *attributes,
+                                    psa_key_type_t type )
 {
     if( attributes->domain_parameters == NULL )
     {
@@ -441,13 +445,13 @@ static inline void psa_set_key_type(psa_key_attributes_t *attributes,
 }
 
 static inline psa_key_type_t psa_get_key_type(
-    const psa_key_attributes_t *attributes)
+    const psa_key_attributes_t *attributes )
 {
     return( attributes->core.type );
 }
 
-static inline void psa_set_key_bits(psa_key_attributes_t *attributes,
-                                    size_t bits)
+static inline void psa_set_key_bits( psa_key_attributes_t *attributes,
+                                    size_t bits )
 {
     if( bits > PSA_MAX_KEY_BITS )
         attributes->core.bits = PSA_KEY_BITS_TOO_LARGE;
@@ -456,7 +460,7 @@ static inline void psa_set_key_bits(psa_key_attributes_t *attributes,
 }
 
 static inline size_t psa_get_key_bits(
-    const psa_key_attributes_t *attributes)
+    const psa_key_attributes_t *attributes )
 {
     return( attributes->core.bits );
 }