Add guarding to aes_maybe_realign
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
diff --git a/library/aes.c b/library/aes.c
index aaea70b..203db0d 100644
--- a/library/aes.c
+++ b/library/aes.c
@@ -981,6 +981,7 @@
*/
MBEDTLS_MAYBE_UNUSED static void aes_maybe_realign(mbedtls_aes_context *ctx)
{
+#if defined(MAY_NEED_TO_ALIGN)
unsigned new_offset = mbedtls_aes_rk_offset(ctx->buf);
if (new_offset != ctx->rk_offset) {
memmove(ctx->buf + new_offset, // new address
@@ -988,6 +989,8 @@
(ctx->nr + 1) * 16); // number of round keys * bytes per rk
ctx->rk_offset = new_offset;
}
+#endif /* MAY_NEED_TO_ALIGN */
+ (void) ctx;
}
/*