linux-kernel - Re: [PATCH] samples: disable CONFIG

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Message-ID: <CAK7LNAQ87H72iMEyrTin=CPRWiyfuiU_sEpxmCT-qCovjREHtw@mail.gmail.com>
Date:   Fri, 28 Sep 2018 15:55:35 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Richard Weinberger <richard@....at>
Cc:     Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Jeff Dike <jdike@...toit.com>, linux-um@...ts.infradead.org,
        David Howells <dhowells@...hat.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Arnd Bergmann <arnd@...db.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Andy Gross <andy.gross@...aro.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        Gerd Hoffmann <kraxel@...hat.com>
Subject: Re: [PATCH] samples: disable CONFIG_SAMPLES for UML

2018年9月19日(水) 15:58 Masahiro Yamada <yamada.masahiro@...ionext.com>:
>
> Hi.
>
> 2018-09-18 17:21 GMT+09:00 Richard Weinberger <richard@....at>:
> > Am Dienstag, 18. September 2018, 05:58:33 CEST schrieb Masahiro Yamada:
> >> Some samples require headers installation, so commit 3fca1700c4c3
> >> ("kbuild: make samples really depend on headers_install") added
> >> such dependency in the top Makefile.  However, UML fails to build
> >> with CONFIG_SAMPLES=y because UML does not support headers_install.
> >>
> >> Fixes: 3fca1700c4c3 ("kbuild: make samples really depend on headers_install")
> >> Reported-by: Kees Cook <keescook@...omium.org>
> >> Cc: David Howells <dhowells@...hat.com>
> >> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
> >
> > Is there anything UML can do better?
> > Not sure whether an arch like is supposed to install headers at all,
> > I guess no. :)
>
> I just thought suppressing CONFIG_SAMPLES was a big hammer.
>
> We could install host-arch headers for UML if we like,
> but I am not sure whether is is sensible...
>
> Wait for comments in case somebody has a better solution.
>


I started to think this is a wrong hack.


I posted a different solution:
https://patchwork.kernel.org/patch/10619043/



-- 
Best Regards
Masahiro Yamada