* Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > On Wed, Sep 03, 2014 at 10:50:01AM -0400, Peter Hurley wrote: > > So a lockdep-only assert is unlikely to draw attention to existing bugs, > > especially in established drivers. > > By the same logic lockdep will not find locking errors in established > drivers. Indeed, this patch is ill-advised in several ways: - it extends an API variant that we want to phase - emits a warning even if say lockdep has already emitted a warning and locking state is not guaranteed to be consistent. - makes the kernel more expensive once fully debugged, in that non-fatal checks are unconditional. Also please submit locking related patches as standalone series to the locking subsystem, not embedded in an unrelated series. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html