linux-kernel - Re: [PATCH net-next v2 1/5] devlink: Reduce struct devlink exposure

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Message-ID: <20211004163808.437ea8f9@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Mon, 4 Oct 2021 16:38:08 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Leon Romanovsky <leonro@...dia.com>,
        Ido Schimmel <idosch@...dia.com>,
        Ingo Molnar <mingo@...hat.com>, Jiri Pirko <jiri@...dia.com>,
        linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
        mlxsw@...dia.com, Moshe Shemesh <moshe@...dia.com>,
        netdev@...r.kernel.org, Saeed Mahameed <saeedm@...dia.com>,
        Salil Mehta <salil.mehta@...wei.com>,
        Shay Drory <shayd@...dia.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Tariq Toukan <tariqt@...dia.com>,
        Yisen Zhuang <yisen.zhuang@...wei.com>
Subject: Re: [PATCH net-next v2 1/5] devlink: Reduce struct devlink exposure

On Sun,  3 Oct 2021 21:12:02 +0300 Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@...dia.com>
> 
> The declaration of struct devlink in general header provokes the
> situation where internal fields can be accidentally used by the driver
> authors. In order to reduce such possible situations, let's reduce the
> namespace exposure of struct devlink.
> 
> Signed-off-by: Leon Romanovsky <leonro@...dia.com>

100% subjective but every time I decided to hide a structure definition
like this I came to regret it later. The fact there is only one minor
infraction in drivers poking at members seems to prove this is not in
fact needed.