Re: [PATCH 05/10] lkdtm: disable set_fs-based tests for !CONFIG_SET_FS

Linus Torvalds
2020-08-27T18:06:54Z

On Thu, Aug 27, 2020 at 8:00 AM Christoph Hellwig <hch@lst.de> wrote:
>
> Once we can't manipulate the address limit, we also can't test what
> happens when the manipulation is abused.

Just remove these tests entirely.

Once set_fs() doesn't exist on x86, the tests no longer make any sense
what-so-ever, because test coverage will be basically zero.

So don't make the code uglier just to maintain a fiction that
something is tested when it isn't really.

Linus