# Re: \[PATCH 0/6\] Don't use BIT() macro in UAPI headers

- From: Christoph Hellwig \<hch@infradead.org\>
- Date: 2021-05-24 11:47:39 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2021/05/1389278
- Thread: https://ratatoskr.run/kvm/2021/05/1385907/t.md

```text
On Thu, May 20, 2021 at 03:43:37AM -0700, Joe Richey wrote:
> This patch series changes all UAPI uses of BIT() to just be open-coded.
> However, there really should be a check for this in checkpatch.pl
> Currently, the script actually _encourages_ users to use the BIT macro
> even if adding things to UAPI.

Yes.  In fact it should warn about BIT() in general.  It is totally
pointless obsfucation that doesn't even save any typing at all.

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