netdev - Re: [PATCH v3 2/2] net: sysctl: introduce sysctl SYSCTL

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Date:   Wed, 20 Apr 2022 12:56:36 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Tonghao Zhang <xiangxia.m.yue@...il.com>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        David Ahern <dsahern@...nel.org>,
        Simon Horman <horms@...ge.net.au>,
        Julian Anastasov <ja@....bg>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        Linux Kernel Network Developers <netdev@...r.kernel.org>,
        Florian Westphal <fw@...len.de>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        Lorenz Bauer <lmb@...udflare.com>,
        Akhmat Karakotov <hmukos@...dex-team.ru>
Subject: Re: [PATCH v3 2/2] net: sysctl: introduce sysctl SYSCTL_THREE

On Wed, Apr 20, 2022 at 08:43:14PM +0800, Tonghao Zhang wrote:
> On Sat, Apr 16, 2022 at 12:40 AM <xiangxia.m.yue@...il.com> wrote:
> >
> > From: Tonghao Zhang <xiangxia.m.yue@...il.com>
> >
> > This patch introdues the SYSCTL_THREE.
> Hi Luis, Jakub
> any thoughts? I have fixed v2.
> > KUnit:
> > [00:10:14] ================ sysctl_test (10 subtests) =================
> > [00:10:14] [PASSED] sysctl_test_api_dointvec_null_tbl_data
> > [00:10:14] [PASSED] sysctl_test_api_dointvec_table_maxlen_unset
> > [00:10:14] [PASSED] sysctl_test_api_dointvec_table_len_is_zero
> > [00:10:14] [PASSED] sysctl_test_api_dointvec_table_read_but_position_set
> > [00:10:14] [PASSED] sysctl_test_dointvec_read_happy_single_positive
> > [00:10:14] [PASSED] sysctl_test_dointvec_read_happy_single_negative
> > [00:10:14] [PASSED] sysctl_test_dointvec_write_happy_single_positive
> > [00:10:14] [PASSED] sysctl_test_dointvec_write_happy_single_negative
> > [00:10:14] [PASSED] sysctl_test_api_dointvec_write_single_less_int_min
> > [00:10:14] [PASSED] sysctl_test_api_dointvec_write_single_greater_int_max
> > [00:10:14] =================== [PASSED] sysctl_test ===================
> >
> > ./run_kselftest.sh -c sysctl
> > ...
> > ok 1 selftests: sysctl: sysctl.sh
> >
> > Cc: Luis Chamberlain <mcgrof@...nel.org>
> > Cc: Kees Cook <keescook@...omium.org>
> > Cc: Iurii Zaikin <yzaikin@...gle.com>
> > Cc: "David S. Miller" <davem@...emloft.net>
> > Cc: Jakub Kicinski <kuba@...nel.org>
> > Cc: Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>
> > Cc: David Ahern <dsahern@...nel.org>
> > Cc: Simon Horman <horms@...ge.net.au>
> > Cc: Julian Anastasov <ja@....bg>
> > Cc: Pablo Neira Ayuso <pablo@...filter.org>
> > Cc: Jozsef Kadlecsik <kadlec@...filter.org>
> > Cc: Florian Westphal <fw@...len.de>
> > Cc: Dmitry Vyukov <dvyukov@...gle.com>
> > Cc: Alexei Starovoitov <ast@...nel.org>
> > Cc: Eric Dumazet <edumazet@...gle.com>
> > Cc: Marc Kleine-Budde <mkl@...gutronix.de>
> > Cc: Lorenz Bauer <lmb@...udflare.com>
> > Cc: Akhmat Karakotov <hmukos@...dex-team.ru>
> > Signed-off-by: Tonghao Zhang <xiangxia.m.yue@...il.com>

It would be good for you to also have a separate patch which extends
the selftest for sysctl which tests that each of the values always
matches, I thought we had that test already, if not one needs to be
added for this. That should be the first patch. The second one would
add this as you are here in this patch, and the last one adds the new
SYSCTL_THREE to the selftest.

Otherwise looks good to me.

Happy to route this via sysclt-next if Jacub is OK with that.

  Luis