On Tue, Oct 22, 2024 at 10:29:13AM -0700, Andrii Nakryiko wrote: > > > > Would this work? > > > > #define SRCU_INVALID_INDEX -1 > > > > But why?
Becaue it very clearly documents what is going on. >It's a nice property to have an int-returning API where valid > values are only >= 0, so callers are free to use the entire negative > range (not just -1) for whatever they need to store in case there is > no srcu_idx value. Well, if you have a concrete use case for that we can probably live with it, but I'd rather have that use case extremely well documented, as it will be very puzzling to the reader.
