Re: [PATCH 4/5] kconfig: Introduce "showif" to factor out conditions on visibility

[Paul Bolle]

Hi Josh,

On Thu, 2015-05-14 at 08:36 -0700, Josh Triplett wrote:
> kconfig implicitly creates a submenu whenever a series of symbols all
> have dependencies or prompt-visibility expressions that all depend on a
> preceeding symbol.  For instance, the series of symbols following
> "menuconfig EXPERT" that all have "if EXPERT" on their prompt will all
> appear as a submenu of EXPERT.
> 
> However, this implicit submenuing will break if any intervening symbol
> loses its "if EXPERT"; doing so causes the subsequent symbols to appear
> in the parent menu ("General setup").  This has happened many times, and
> it's easy to miss that the entire block should have that same
> expression.
> 
> For submenus created from "depends" dependencies, these can be converted
> to a single wrapping "if expr ... endif" block around all the submenu
> items.  However, there's no equivalent for invisible items, for which
> the prompt is hidden but the symbol may potentially be enabled.  For
> instance, many items in the EXPERT menu are hidden if EXPERT is
> disabled, but they have "default y" or are determined by some other
> expression.

No one has reacted so far. So my plan to have the other people on
linux-kbuild do the work here is not going as I'd hoped. Bother...

I seem to remember that you had a list of three dozen menuconfig
instances that ran into the same issue as EXPERT's menuconfig. Do you
still have that list at hand?

Thanks,


Paul Bolle

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