Re: [PATCH 3/3] kbuild: Add a build check for missing gitignore entries

[Linus Torvalds]

On Tue, Feb 23, 2021 at 10:14 AM Rob Herring <robh@xxxxxxxxxx> wrote:
>
> Any non-phony targets need to be in gitignore. The normal way to check
> this is doing an in-tree build and running git-status which is easy to
> miss. Git provides an easy way to check whether a file is ignored with
> git-check-ignore. Let's add a build time check using it.

This looks ridiculously expensive with a shell and git invocation for
every single target just for this check.

Considering that I just had to fight my build suddenly getting much
slower, I'm a bit sensitive about these things.

          Linus