Lähdekoodi sivulle Steps to compile the kernel

Download latest stable from kernel.org

Unzip
 tar xf linux-5.7.2.tar.xz && cd linux-5.7.2

Copy existing config (make things easy)
 cp /boot/config-$(uname -r) .config

Use terminal based configuration tool
 make menuconfig

If you have relatively recent hardware, this step will take most of your time. Add/remove stuff based on your hardware

Compile the kernel with Clang (Remove CC for compiling with gcc - the default C compiler)
 make CC=clang -j12

Install the kernel
 sudo make install

Update grub
 sudo update-grub

Reboot
 sudo reboot

[https://dev.to/wxyz/howto-compile-linux-kernel-on-ubuntu-applies-to-any-distro-44k7 Lähde]