Kernel module is an easy and effective mechanism to extend the functionality of a running system without the baggage of rebuilding the whole kernel, they have been vital in ushering dynamism and scalability to the Linux operating system. Kernel modules not only satiate the extendable nature of the kernel but also usher the following functionalities:

• Allowing kernel the ability to only keep features which are necessary, in-turn boosting capacity utilization
• Allowing proprietary/non-GPL compliant services to load and unload
• The bottom-line feature of extensibility of the kernel