# Re: \[PATCH 01/10\] x86/mm/numa: Remove uninitialized\_var() usage

- From: Miguel Ojeda \<hidden\>
- Date: 2020-06-04 11:41:26 
- List: netdev
- Page: https://ratatoskr.run/netdev/2020/06/5989314
- Thread: https://ratatoskr.run/linux-block/2020/06/5988825/t.md

```text
On Thu, Jun 4, 2020 at 9:58 AM Thomas Gleixner [ref] wrote:
>
> but if we ever lose the 1 then the above will silently compile the code
> within the IS_ENABLED() section out.

Yeah, I believe `IS_ENABLED()` is only meant for Kconfig symbols, not
macro defs in general. A better option would be `__is_defined()` which
works for defined-to-nothing too.

Cheers,
Miguel
```