From ce318382eefc52e1240a022f8ad5869222ca89ed Mon Sep 17 00:00:00 2001
From: Shawn Nock <nock@nocko.se>
Date: Wed, 2 Aug 2017 16:24:03 -0400
Subject: [PATCH] Fixes compiler warning

---
 cmac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmac.c b/cmac.c
index 6b920d5..e543e06 100644
--- a/cmac.c
+++ b/cmac.c
@@ -59,7 +59,7 @@ static void cmac_truncate(uint8_t *dest, uint8_t *tag, uint_fast8_t tag_len) {
 void cmac_aes128(uint8_t *dest, uint8_t *msg, size_t msg_len,
                  uint_fast8_t tag_len) {
     /* Simulate ceiling integer division by adding a block if remainder */
-    size_t num_blocks = msg_len >> 4 + (msg_len & 15 ? 1 : 0);
+    size_t num_blocks = (msg_len >> 4) + (msg_len & 15 ? 1 : 0);
     bool last_block_complete = !(msg_len & 15 ? 1 : 0);
     if (msg_len == 0) {
         num_blocks = 1;