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From:   Masahiro Yamada <masahiroy@kernel.org>
Date:   Tue, 9 Mar 2021 23:53:21 +0900
Message-ID: <CAK7LNARVPYBWvaA+MCjVic+qLay1AR-+UZuyC+_FRGShL=gahg@mail.gmail.com>
Subject: Re: [PATCH] arm64: make STACKPROTECTOR_PER_TASK configurable.
To:     =?UTF-8?Q?Michal_Such=C3=A1nek?= <msuchanek@suse.de>
Cc:     linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Tue, Mar 9, 2021 at 10:35 PM Michal Such=C3=A1nek <msuchanek@suse.de> wr=
ote:
>
> On Tue, Mar 09, 2021 at 10:22:36PM +0900, Masahiro Yamada wrote:
> > On Tue, Mar 9, 2021 at 9:35 PM Michal Suchanek <msuchanek@suse.de> wrot=
e:
> > >
> > > When using dummy-tools STACKPROTECTOR_PER_TASK is unconditionally
> > > selected. This defeats the purpose of the all-enabled tool.
> > >
> > > Description copied from arm
> > >
> > > Cc: Masahiro Yamada <masahiroy@kernel.org>
> > > Signed-off-by: Michal Suchanek <msuchanek@suse.de>
> >
> >
> > Could you explain what problem
> > this patch is trying to solve?
>
> The option cannot be disabled when compiler has the required capability.


Yes.
Currently, this symbol claims "def_bool y",
so there is no way to disable it.

But, it comes from the nature of Kconfig in general.

dummy-tools is completely unrelated here.


--=20
Best Regards
Masahiro Yamada