Consistent kernel formatting

[rhornung67]

Is your feature request related to a problem? Please describe.

Not really a problem, more about code consistency and readability.

Describe the solution you'd like

Format kernels consistently w.r.t. indentation, line content, etc.

Describe alternatives you've considered

A clear and concise description of any alternative solutions or features you've considered.

Additional context

Add any other context or information about the feature request here.