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SubjectRe: linux-next: build failure after merge of the keys tree
On Thu, May 14, 2020 at 9:11 PM David Howells <dhowells@redhat.com> wrote:
>
> Jason A. Donenfeld <Jason@zx2c4.com> wrote:
>
> > Your touch might be helpful here. CRYPTO_LIB_CHACHA20POLY1305 is a
> > tristate and depends on as well as selects other things that are
> > tristates.
> >
> > Meanwhile BIG_KEYS is a bool, which needs to select
> > CRYPTO_LIB_CHACHA20POLY1305. However, it gets antsy if the the symbol
> > its selecting has =m items in its hierarchy.
> >
> > Any suggestions? The ideal thing to happen would be that the select of
> > CRYPTO_LIB_CHACHA20POLY1305 in BIG_KEYS causes all of the descendants
> > to become =y too.
>
> I think that select is broken in its behaviour - it doesn't propagate the
> selection enforcement up the tree. You could try changing it to a depends on
> or you could put in a select for every dependency.

I agree.
'depends on' will be cleaner.

> I'm not sure there are any
> other options - unless we turn big_key into a module and institute autoloading
> of keytypes on demand.
>
> David
>


--
Best Regards
Masahiro Yamada

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