[coreboot-gerrit] Change in coreboot[master]: util/exynos: Port *_cksum.py to python3

[Yilin Yang (Code Review)]

Yilin Yang has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/45460 )

Change subject: util/exynos: Port *_cksum.py to python3
......................................................................

util/exynos: Port *_cksum.py to python3

BUG=chromium:1023662
TEST=1. Create a tiny file `in.txt` as input
     2. Run `fixed_cksum.py in.txt out.txt 20` with py2 and py3 version,
     the output is the same
     3. Run `variable_cksum.py in.txt out.txt` with py2 and py3 version,
     the output is the same

Signed-off-by: Yilin Yang 
Change-Id: I9428269dfb826a3a95fffef9ea3f7c1a7107ef84
---
M util/exynos/fixed_cksum.py
M util/exynos/variable_cksum.py
2 files changed, 4 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/60/45460/1

diff --git a/util/exynos/fixed_cksum.py b/util/exynos/fixed_cksum.py
index c6a9ddae..0ae7e4f 100755
--- a/util/exynos/fixed_cksum.py
+++ b/util/exynos/fixed_cksum.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
 #
 # SPDX-License-Identifier: BSD-3-Clause

@@ -28,7 +28,7 @@
     checksum_size = struct.calcsize(checksum_format)
     data_size = size - checksum_size
     assert len(data) <= data_size
-    checksum = struct.pack(checksum_format, sum(map(ord, data)))
+    checksum = struct.pack(checksum_format, sum(data))
     out_file.write(data + bytearray(data_size - len(data)) + checksum)

diff --git a/util/exynos/variable_cksum.py b/util/exynos/variable_cksum.py
index 62a76cc..4321f8e 100755
--- a/util/exynos/variable_cksum.py
+++ b/util/exynos/variable_cksum.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
 #
 # SPDX-License-Identifier: BSD-3-Clause

@@ -27,7 +27,7 @@
     data = in_file.read()
     header = struct.pack(header_format,
                          struct.calcsize(header_format) + len(data),
-                         sum(map(ord, data)),
+                         sum(data),
                          0, 0)
     out_file.write(header + data)