linux-kernel - Re: [RFC][PATCH] kconfig: introduce listunknownconfig

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Message-ID: <20230824012027.GD3913@google.com>
Date:   Thu, 24 Aug 2023 10:20:27 +0900
From:   Sergey Senozhatsky <senozhatsky@...omium.org>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     Sergey Senozhatsky <senozhatsky@...omium.org>,
        Ying Sun <sunying@...iscas.ac.cn>,
        Jesse T <mr.bossman075@...il.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nicolas Schier <nicolas@...sle.eu>,
        Jonathan Corbet <corbet@....net>,
        Tomasz Figa <tfiga@...omium.org>, linux-kbuild@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH] kconfig: introduce listunknownconfig

On (23/08/24 10:00), Masahiro Yamada wrote:

> For the MFD_RK808 case particularly,
> I believe Kconfig showed MFD_RK8XX_I2C
> as a new option.

I think there were some other unmet dependencies for MFD_RK8XX_I2C and
I don't think the new config was shown. But even if it was, we still
would have no idea that this meant "MFD_RK808 is not available anymore
and the corresponding code won't get compiled". So the "this is not
recognized anymore" is still needed and is quite helpful.

Would you be OK with "list missing" being a warning (not a terminal
condition)?