From ba56c72d91481cd4d9f6102dff682baaddc19594 Mon Sep 17 00:00:00 2001
From: Robin Mueller <muellerr@irs.uni-stuttgart.de>
Date: Thu, 18 Aug 2022 15:34:26 +0200
Subject: [PATCH] simpler way to check crc16

---
 linux/devices/ploc/PlocSupervisorHandler.cpp | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/linux/devices/ploc/PlocSupervisorHandler.cpp b/linux/devices/ploc/PlocSupervisorHandler.cpp
index fbbcf3c4..1f588299 100644
--- a/linux/devices/ploc/PlocSupervisorHandler.cpp
+++ b/linux/devices/ploc/PlocSupervisorHandler.cpp
@@ -893,9 +893,7 @@ void PlocSupervisorHandler::setExecutionTimeout(DeviceCommandId_t command) {
 }
 
 ReturnValue_t PlocSupervisorHandler::verifyPacket(const uint8_t* start, size_t foundLen) {
-  uint16_t receivedCrc = *(start + foundLen - 2) << 8 | *(start + foundLen - 1);
-  uint16_t recalculatedCrc = CRC::crc16ccitt(start, foundLen - 2);
-  if (receivedCrc != recalculatedCrc) {
+  if (CRC::crc16ccitt(start, foundLen) != 0) {
     return SupvReturnValuesIF::CRC_FAILURE;
   }
   return RETURN_OK;