On 10/06/2023 22.40, Demi Marie Obenour wrote: > Passing spaces before e.g. an integer is usually > not intended. Maybe, maybe not. But it's mandated by POSIX/C99. And of course we are free to ignore that and implement our own semantics (though within the constraints that we really want -Wformat to help us), but there seems to be existing code in-tree that relies on this behavior. For example I think this will break fsl_sata_intr_coalescing_store() which uses a scanf format of "%u%u". Sure, that could just say "%u %u" instead, but the point is that currently it doesn't. So without some reasonably thorough analysis across the tree, and updates of affected callers, NAK. Rasmus
