linux-kernel - Re: [PATCH] kconfig: Warn if there is more than one help text

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Message-ID: <CAK7LNAT0jJ7mj6_ZWCprK5wHp5-FRoBhaUxxwO_x23PO+XU-gQ@mail.gmail.com>
Date:   Sat, 13 Jan 2018 22:18:57 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Ulf Magnusson <ulfalizer@...il.com>
Cc:     Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Sam Ravnborg <sam@...nborg.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kconfig: Warn if there is more than one help text

2018-01-12 15:47 GMT+09:00 Ulf Magnusson <ulfalizer@...il.com>:
> Avoids mistakes like in the following real-world example, where only the
> final help string ("Say Y...") was used. This particular example was
> fixed in commit 561b29e4ec8d ("media: fix media Kconfig help syntax
> issues").
>
>   config DVB_NETUP_UNIDVB
>         ...
>         select DVB_CXD2841ER if MEDIA_SUBDRV_AUTOSELECT
>         ---help---
>           Support for NetUP PCI express Universal DVB card.
>        help
>         Say Y when you want to support NetUP Dual Universal DVB card
>         ...
>
> This now prints the following warning:
>
>   drivers/media/pci/netup_unidvb:13: warning: 'DVB_NETUP_UNIDVB' defined with more than one help text -- only the last one will be used
>
> Also free() any extra help strings.
>
> Signed-off-by: Ulf Magnusson <ulfalizer@...il.com>
> ---

Applied to linux-kbuild/kconfig
replacing "kconfig: Don't leak help strings during parsing"

Thanks!

-- 
Best Regards
Masahiro Yamada