* Byungchul Park <byungchul.park@xxxxxxx> wrote: > > Isn't lockdep_map a zero size structure that is always defined? If yes then > > there's no need for an #ifdef. > > No, a zero size structure for lockdep_map is not provided yet. > There are two options I can do: > > 1. Add a zero size structure for lockdep_map and remove #ifdef > 2. Replace CONFIG_LOCKDEP_COMPLETIONS with CONFIG_LOCKDEP here. > > Or something else? > > Which one do you prefer? Ok, could we try #1 in a new patch and re-spin the simplified block layer patch on top of that? The less ugly a debug facility's impact on unrelated kernel is, the better - especially when it comes to annotating false positives. Thanks, Ingo