From 518e6134b59aa4521803aa701968376ed7e2957a Mon Sep 17 00:00:00 2001
From: mtei <2170248+mtei@users.noreply.github.com>
Date: Thu, 19 Jul 2018 19:12:01 +0900
Subject: [PATCH] modify serial_send_packet()/serial_recive_packet()

A little, object size reduction.
A little, speedup.
---
 keyboards/helix/serial.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/keyboards/helix/serial.c b/keyboards/helix/serial.c
index a4fd012bf8..f2652c20bc 100644
--- a/keyboards/helix/serial.c
+++ b/keyboards/helix/serial.c
@@ -182,9 +182,11 @@ static
 void serial_send_packet(uint8_t *buffer, uint8_t size) {
   uint8_t checksum = 0;
   for (uint8_t i = 0; i < size; ++i) {
+    uint8_t data;
+    data = buffer[i];
     sync_send();
-    serial_write_byte(buffer[i]);
-    checksum += buffer[i];
+    serial_write_byte(data);
+    checksum += data;
   }
   sync_send();
   serial_write_byte(checksum);
@@ -194,9 +196,11 @@ static
 uint8_t serial_recive_packet(uint8_t *buffer, uint8_t size) {
   uint8_t checksum_computed = 0;
   for (uint8_t i = 0; i < size; ++i) {
+    uint8_t data;
     sync_recv();
-    buffer[i] = serial_read_byte();
-    checksum_computed += buffer[i];
+    data = serial_read_byte();
+    buffer[i] = data;
+    checksum_computed += data;
   }
   sync_recv();
   uint8_t checksum_received = serial_read_byte();