netdev - Re: [PATCH net-next v2 1/2] net/sock: add an explicit sk argument for ip_cmsg_recv

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Date:   Fri, 04 Nov 2016 05:36:00 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Paolo Abeni <pabeni@...hat.com>
Cc:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Hannes Frederic Sowa <hannes@...essinduktion.org>,
        linux-nfs@...r.kernel.org
Subject: Re: [PATCH net-next v2 1/2] net/sock: add an explicit sk argument
 for ip_cmsg_recv_offset()

On Fri, 2016-11-04 at 11:28 +0100, Paolo Abeni wrote:
> So that we can use it even after orphaining the skbuff.
> 
> Suggested-by: Eric Dumazet <eric.dumazet@...il.com>
> Signed-off-by: Paolo Abeni <pabeni@...hat.com>
> ---
> @Eric, please add your signed off by when you feel comfortable with the patch
> as you basically authored it

> -void ip_cmsg_recv_offset(struct msghdr *msg, struct sk_buff *skb,
> -			 int tlen, int offset)
> +void ip_cmsg_recv_offset(struct msghdr *msg, struct sock *sk,
> +			 struct sk_buff *skb, int tlen, int offset)
>  {
> -	struct inet_sock *inet = inet_sk(skb->sk);
> +	struct inet_sock *inet = inet_sk(sk);
>  	unsigned int flags = inet->cmsg_flags;

My final version had :

void ip_cmsg_recv_offset(struct msghdr *msg, const struct sock *sk,
                         struct sk_buff *skb, int tlen, int offset)
{
	unsigned int flags = inet_sk(sk)->cmsg_flags;


(Ie not using "struct inet_sock *inet = ...", and a const pointer for
struct sock)

Other than that minor details :

Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Thanks !