linux-kernel - Re: [RESEND PATCH] bpfilter: check compiler capability in Kconfig

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Message-ID: <20180628020519.txhrgq627cnhqspe@ast-mbp.dhcp.thefacebook.com>
Date:   Wed, 27 Jun 2018 19:05:21 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     "David S . Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        Matteo Croce <mcroce@...hat.com>,
        Arnd Bergmann <arnd@...db.de>, linux-kbuild@...r.kernel.org,
        Alexei Starovoitov <ast@...nel.org>,
        linux-kernel@...r.kernel.org,
        Michal Marek <michal.lkml@...kovi.net>,
        Daniel Borkmann <daniel@...earbox.net>
Subject: Re: [RESEND PATCH] bpfilter: check compiler capability in Kconfig

On Tue, Jun 26, 2018 at 12:55:35PM +0900, Masahiro Yamada wrote:
> With the brand-new syntax extension of Kconfig, we can directly
> check the compiler capability in the configuration phase.
> 
> If the cc-can-link.sh fails, the BPFILTER_UMH is automatically
> hidden by the dependency.
> 
> I also deleted 'default n', which is no-op.
> 
> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>

I haven't tested it yet, but looks good to me as well.
Thank you for the follow up.
Acked-by: Alexei Starovoitov <ast@...nel.org>