Hi Christoph, > Doesn't this need to be merged into the previous patch to prevent > a compile failure after just the previous patch is applied? Yes, it does. I kept it separate for the sake of review, since we have sysfs and PCI involved. I wasn't sure if Bjorn would prefer to have this done as separate patches or not, to be honest. Bjorn said that he can squash this when applying, thus I left it as-is for now - which means that the entire series has to be applied for everything to build cleanly. I will send v3 that merges first two patches. Sorry for troubles! Krzysztof