netdev - Re: [Patch bpf-next v2 4/9] udp: implement ->read

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Date:   Tue, 2 Mar 2021 22:26:10 -0800
From:   Yonghong Song <yhs@...com>
To:     Cong Wang <xiyou.wangcong@...il.com>, <netdev@...r.kernel.org>
CC:     <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>,
        Jakub Sitnicki <jakub@...udflare.com>,
        Lorenz Bauer <lmb@...udflare.com>
Subject: Re: [Patch bpf-next v2 4/9] udp: implement ->read_sock() for sockmap



On 3/1/21 6:37 PM, Cong Wang wrote:
> From: Cong Wang <cong.wang@...edance.com>

Some even simple commit message here will be preferred
compared to empty commit message.

> 
> 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>
> ---
>   include/net/udp.h  |  2 ++
>   net/ipv4/af_inet.c |  1 +
>   net/ipv4/udp.c     | 34 ++++++++++++++++++++++++++++++++++
>   3 files changed, 37 insertions(+)
> 
> diff --git a/include/net/udp.h b/include/net/udp.h
> index 5264ba1439f9..44a94cfc63b5 100644
> --- a/include/net/udp.h
> +++ b/include/net/udp.h
> @@ -330,6 +330,8 @@ struct sock *__udp6_lib_lookup(struct net *net,
>   			       struct sk_buff *skb);
>   struct sock *udp6_lib_lookup_skb(const struct sk_buff *skb,
>   				 __be16 sport, __be16 dport);
> +int udp_read_sock(struct sock *sk, read_descriptor_t *desc,
> +		  sk_read_actor_t recv_actor);
>   
>   /* UDP uses skb->dev_scratch to cache as much information as possible and avoid
>    * possibly multiple cache miss on dequeue()
[...]