Only force O2 when hw acceleration available
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/library/aes.c b/library/aes.c
index ce458b6..49c3089 100644
--- a/library/aes.c
+++ b/library/aes.c
@@ -1128,7 +1128,9 @@
* for machine endianness and hence works correctly on both big and little
* endian machines.
*/
+#if defined(MBEDTLS_AESCE_C) || defined(MBEDTLS_AESNI_C)
MBEDTLS_OPTIMIZE_FOR_PERFORMANCE
+#endif
static inline void mbedtls_gf128mul_x_ble(unsigned char r[16],
const unsigned char x[16])
{