Yocto linux-kernel bb config

[bossssie]

I am following the "Learn the Essentials of creating uBoot, Linux and YOCTO for a board" course. But now I am stuck on the Yocto layer part. I can succefully compile this code https://github.com/bossssie/course_linux for a i.mx6ull board.
For the meta layer I used the toradex colibri files for i.mx6ull as a reference. The code gets cloned from github correctly and put in the folder linux-seeed.

I get the following error when running "bitbake core-image-minimal"

ERROR: linux-seeed-5.4.47+gitAUTOINC+7c3b78ebbd+gitAUTOINC+7c3b78ebbd-r0 do_populate_lic: QA Issue: linux-seeed: The LIC_FILES_CHKSUM does not match for file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7
linux-seeed: The new md5 checksum is bbea815ee2795b2f4230826c0c6b8814

my linux-seeed_5.4.bb file is as follows:

#FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-${PV}:"
require recipes-kernel/linux/linux-imx.inc

SUMMARY = "Linux kernel for Toradex Colibri VFxx Computer on Modules"
DEPENDS += "lzop-native bc-native"
SRC_URI = "git://github.com/bossssie/course_linux.git;protocol=git;branch=${SRCBRANCH}"
SRC_URI += "file://defconfig"


LOCALVERSION = "-yocto"
PV_append = "+git${SRCPV}"

LINUX_VERSION = "5.4.47"

SRCBRANCH = "zeus"
SRCREV = "7c3b78ebbdd961a6deace6ee819395ea17b2656a"
#SRCREV = "AUTOINC"

COMPATIBLE_MACHINE = "(mx6|imx6ull-seeed)"

Does anyone have any idee to get past this error?

[robertferanec]

I would maybe try to find out why the checksum is mismatched (and where it is defined)

[bossssie]

Just an update, I got it working by adding these 2 lines in the linux.bb file

LICENSE = "GPLv2"
LIC_FILES_CHKSUM = "file://COPYING;md5=bbea815ee2795b2f4230826c0c6b8814"