Without the kernel module, it is not possible to use the BATMAN mesh routing protocols
root@GL-MT3000:~# opkg update
Downloading https://fw.gl-inet.com/releases/v21.02.3/kmod-4.0/aarch64_cortex-a53/mediatek/mt7981/Packages.gz
Updated list of available packages in /var/opkg-lists/glinet_core
Downloading https://fw.gl-inet.com/releases/v21.02.3/packages-4.0/aarch64_cortex-a53/glinet/Packages.gz
Updated list of available packages in /var/opkg-lists/glinet_gli_pub
Downloading https://fw.gl-inet.com/releases/v21.02.3/packages-4.0/aarch64_cortex-a53/packages/Packages.gz
Updated list of available packages in /var/opkg-lists/glinet_packages
Updating database.
Database update completed.
root@GL-MT3000:~# opkg list | cut -d ' ' -f 1-3 | fgrep bat
batctl-default - 2021.1-2
batctl-full - 2021.1-2
batctl-tiny - 2021.1-2
batmand - 1440-1
gl-sdk4-cloud-batch-manage - git-2022.302.13601-2b5e3cd-1
libatasmart - 2012-05-21-de625894-1
libatomic1 - 8.4.0-3
libattr - 2.4.48-2
luci-mod-battstatus - git-21.229.36674-854399a
sane-abaton - 1.0.32-2