netdev - Re: [Patch bpf-next 02/19] skmsg: get rid of struct sk_psock

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Message-ID: <87ft2a4uz4.fsf@cloudflare.com>
Date:   Fri, 05 Feb 2021 12:25:35 +0100
From:   Jakub Sitnicki <jakub@...udflare.com>
To:     Cong Wang <xiyou.wangcong@...il.com>
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org,
        duanxiongchun@...edance.com, wangdongdong.6@...edance.com,
        jiang.wang@...edance.com, Cong Wang <cong.wang@...edance.com>,
        John Fastabend <john.fastabend@...il.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Lorenz Bauer <lmb@...udflare.com>
Subject: Re: [Patch bpf-next 02/19] skmsg: get rid of struct sk_psock_parser

On Wed, Feb 03, 2021 at 05:16 AM CET, Cong Wang wrote:
> From: Cong Wang <cong.wang@...edance.com>
>
> struct sk_psock_parser is embedded in sk_psock, it is
> unnecessary as skb verdict also uses ->saved_data_ready.
> We can simply fold these fields into sk_psock.
>
> Cc: John Fastabend <john.fastabend@...il.com>
> Cc: Daniel Borkmann <daniel@...earbox.net>
> Cc: Jakub Sitnicki <jakub@...udflare.com>
> Cc: Lorenz Bauer <lmb@...udflare.com>
> Signed-off-by: Cong Wang <cong.wang@...edance.com>
> ---

This one looks like a candidate for splitting out of the series, as it
stands on its own, to make the itself series smaller.

Also, it seems that we always have:

  parser.enabled/bpf_running == (saved_data_ready != NULL)

Maybe parser.enabled can be turned into a predicate function.

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