Subject: Re: [Patch net-next] tcp_bpf: remove an unused parameter for bpf_tcp_ingress()

From: Martin KaFai Lau <[email-masked]>
Date: Tue, 27 Aug 2024 14:50:01 -0700

On 8/23/24 3:48 PM, Yaxin Chen wrote:
> Parameter flags is not used in bpf_tcp_ingress().
> 
> Reviewed-by: Cong Wang <[email-masked]>
> Cc: John Fastabend <[email-masked]>
> Cc: Jakub Sitnicki <[email-masked]>
> Signed-off-by: Yaxin Chen <[email-masked]>
> ---
>   net/ipv4/tcp_bpf.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
> index 53b0d62fd2c2..57a1614c55f9 100644
> --- a/net/ipv4/tcp_bpf.c
> +++ b/net/ipv4/tcp_bpf.c
> @@ -30,7 +30,7 @@ void tcp_eat_skb(struct sock *sk, struct sk_buff *skb)
>   }
>   
>   static int bpf_tcp_ingress(struct sock *sk, struct sk_psock *psock,
> -			   struct sk_msg *msg, u32 apply_bytes, int flags)
> +			   struct sk_msg *msg, u32 apply_bytes)
>   {
>   	bool apply = apply_bytes;
>   	struct scatterlist *sge;
> @@ -167,7 +167,7 @@ int tcp_bpf_sendmsg_redir(struct sock *sk, bool ingress,
>   	if (unlikely(!psock))
>   		return -EPIPE;
>   
> -	ret = ingress ? bpf_tcp_ingress(sk, psock, msg, bytes, flags) :
> +	ret = ingress ? bpf_tcp_ingress(sk, psock, msg, bytes) :

lgtm also. John and Jakub Sitnicki, please help to take a look and Ack if this 
looks good to you also.

>   			tcp_bpf_push_locked(sk, msg, bytes, flags, false);
>   	sk_psock_put(sk, psock);
>   	return ret;