On Mon, 30 Jan 2012, Tejun Heo wrote: > Percpu pointers are in a different address space and using > ZERO_SIZE_PTR directly will trigger sparse address space warning. > Also, I'm not entirely sure whether 16 is guaranteed to be unused in > percpu address space (maybe it is but I don't think we have anything > enforcing that).
We are already checking for NULL on free. So there is a presumption that these numbers are unused. _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
