From 5a3c50e89049b4a5efbeceea49318182fac28456 Mon Sep 17 00:00:00 2001
From: Gilles Peskine <Gilles.Peskine@arm.com>
Date: Tue, 4 Dec 2018 12:27:09 +0100
Subject: [PATCH] Don't use an enum in a bit-field

This isn't standard C. GCC and Clang accept it but not every
compiler (e.g. Armcc 5).
---
 library/psa_crypto.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 233a19edeb..7415a9a4fe 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -147,12 +147,10 @@ static int key_type_is_raw_bytes( psa_key_type_t type )
     return( PSA_KEY_TYPE_IS_UNSTRUCTURED( type ) );
 }
 
-enum rng_state
-{
-    RNG_NOT_INITIALIZED = 0,
-    RNG_INITIALIZED,
-    RNG_SEEDED,
-};
+/* Values for psa_global_data_t::rng_state */
+#define RNG_NOT_INITIALIZED 0
+#define RNG_INITIALIZED 1
+#define RNG_SEEDED 2
 
 typedef struct
 {
@@ -162,7 +160,7 @@ typedef struct
     mbedtls_ctr_drbg_context ctr_drbg;
     key_slot_t key_slots[PSA_KEY_SLOT_COUNT];
     unsigned initialized : 1;
-    enum rng_state rng_state : 2;
+    unsigned rng_state : 2;
     unsigned key_slots_initialized : 1;
 } psa_global_data_t;