diff options
| -rwxr-xr-x | util/mainboard/google/hatch/kconfig.py | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/util/mainboard/google/hatch/kconfig.py b/util/mainboard/google/hatch/kconfig.py index ecc24eeb49..891714b53e 100755 --- a/util/mainboard/google/hatch/kconfig.py +++ b/util/mainboard/google/hatch/kconfig.py @@ -64,8 +64,11 @@ def get_gbb_hwid(variant_name): converted to all uppercase as part of this function.""" hwid = variant_name + ' test' upperhwid = hwid.upper() - suffix = zlib.crc32(upperhwid.encode('UTF-8')) % 10000 - gbb_hwid = upperhwid + ' ' + str(suffix).zfill(4) + # Force conversion to unsigned by bitwise AND with (2^32)-1. + # See the docs for crc32 at https://docs.python.org/3/library/zlib.html + # for why '& 0xffffffff' is necessary. + crc = zlib.crc32(upperhwid.encode('UTF-8')) & 0xffffffff + gbb_hwid = upperhwid + ' ' + str(crc % 10000).zfill(4) return gbb_hwid |