Re: [PATCH 1/1] [RFC] kconfig: warn if an unknown symbol is selected

[Michal Marek <mmarek@suse.cz>]

On 2014-09-27 00:08, Paul Bolle wrote:
> A select of an unknown symbol is basically treated as a nop and is
> silently skipped. This is annoying if the selected symbol contains a
> typo. It can also hide the fact that a treewide symbol cleanup was only
> done partially.
> 
> There are also a few cases were this might have been done on purpose.
> But that anti-pattern should be discouraged. Almost all select
> statements point to a known and reachable symbol. So people will likely
> assume that any selected symbol is actually set. Violating that
> assumption might lead to (subtle) bugs.
> 
> So let's warn when we notice a select of a symbol that is not known in
> the configuration we're creating.
> 
> Rfced-by: Paul Bolle <pebolle@tiscali.nl>

I think this is a good idea, it fits well next to the already present
warning about selecting symbols with unmet dependencies. Feel free to
submit as a regular patch with

Acked-by: Michal Marek <mmarek@suse.cz>

Michal