Re: [PATCH] mm: Make CONFIG_FRAME_VECTOR a visible option

[Christoph Hellwig]

On Tue, Jan 15, 2019 at 08:44:35AM -0800, Olof Johansson wrote:
> CONFIG_FRAME_VECTOR was made an option to avoid including the bloat on
> platforms that try to keep footprint down, which makes sense.
> 
> The problem with this is external modules that aren't built in-tree.
> Since they don't have in-tree Kconfig, whether they can be loaded now
> depends on whether your kernel config enabled some completely unrelated
> driver that happened to select it. That's a weird and unpredictable
> situation, and makes for some awkward requirements for the standalone
> modules.
> 
> For these reasons, give someone the option to manually enable this when
> configuring the kernel.

NAK, we should not confuse kernel users for stuff that is out of tree.