KernelSU kernel for Galaxy TAB A7 with Android 14 version S7DXF9

How to apply

mkdir repack
cd repack
magiskboot unpack ../boot.img
cp ../Image-SM-T220_EUR_14-S7DXF9 kernel
magiskboot repack ../boot.img
mv new-boot.img boot.img
tar cf boot.tar boot.img
At this point, reboot your tablet into Odin:
- Switch it off (by long holding power , Selecting & confirming Power off)
- If not yet done, connect it with USB cable to PC
- Press and hold Volume Up and Volume Down at once
- When Odin screen shows up, release Volume Up and Volume Down
odin4 -a boot.tar

Needed tools and files can be found here:

This kernel :-) : Image-SM-T220_EUR_14-S7DXF9
Magiskboot: https://github.com/magojohnji/magiskboot-linux
Odin4: https://technastic.com/download-samsung-odin-linux/
Boot.img: From Samsung using Samsung Firmware Downloader, Frija or any other Samsung downloader. Or, if you already have rooted your Tablet using a different rooting framework, you probably already have boot.img, or can get it easily from /dev/block/by-name/boot

A ready-made boot.tar is also available, but probably will only work with exactly the same Galaxy Tab A7 Lite model as I have.

Get kernel sources from Samsung: , enter your device (SM-T220) into search box, then download the version corresponding to your build number (using XXS7DXF9 for this example)
Get my patch: SM-T220-KernelSU.diff
Unpack:
unzip SM-T220_EUR_14_Opensource-S7DXF9.zip
mkdir Kernel
cd Kernel
tar xfzv ../Kernel.tar.gz
Make it writeable (why is Samsung distribunting read-only source trees?):
chmod -R u+w .
Apply my patch (because KPROBES does not work correctly on this old kernel):
patch -p1 -s <SM-T220-KernelSU.diff
Apply KernelSU:
curl -LSs "https://raw.githubusercontent.com/tiann/KernelSU/main/kernel/setup.sh" | bash -s v0.9.5
Perform the build procedure as described by Samsung's README_Kernel.txt:
export ANDROID_MAJOR_VERSION=r
export ARCH=arm64
make -C $(pwd) O=$(pwd)/out KCFLAGS=-w CONFIG_SECTION_MISMATCH_WARN_ONLY=y gta7litewifi_defconfig
make -C $(pwd) O=$(pwd)/out KCFLAGS=-w CONFIG_SECTION_MISMATCH_WARN_ONLY=y
You will find the kernel in out/arch/arm64/boot/Image. Indeed, you will have to use the uncompressed version.