Hello Greg, [...] > It's "interesting" how using your new helper doesn't actually make the > code smaller. Perhaps it isn't a good helper function? The idea for the helper was inspired by the comment Dan made to Bjorn about Bjorn's change, as per: https://lore.kernel.org/driverdev-devel/20191016135002.GA24678@kadam/ It looked like a good idea to try to reduce the following: dev->driver && dev->driver->pm && dev->driver->pm->prepare Into something more succinct. Albeit, given the feedback from yourself and Rafael, I gather that this helper is not really a good addition. Thank you everyone and sorry for the commotion! Krzysztof