Re: [PATCH mptcp-next v2 6/9] mptcp: infinite mapping receiving

[Paolo Abeni <pabeni@redhat.com>]

On Thu, 2021-09-09 at 19:51 +0800, Geliang Tang wrote:
> From: Geliang Tang <geliangtang@xiaomi.com>
> 
> This patch added the infinite mapping receiving logic. When the infinite
> mapping is received. invoke __mptcp_do_infinite to set the
> MPTCP_INFINITE_DONE flag and return MAPPING_INFINITE.
> 
> Signed-off-by: Geliang Tang <geliangtang@xiaomi.com>
> ---
>  net/mptcp/subflow.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
> index ad8efe56eab6..bf535cc46c5c 100644
> --- a/net/mptcp/subflow.c
> +++ b/net/mptcp/subflow.c
> @@ -972,7 +972,9 @@ static enum mapping_status get_mapping_status(struct sock *ssk,
>  	data_len = mpext->data_len;
>  	if (data_len == 0) {
>  		MPTCP_INC_STATS(sock_net(ssk), MPTCP_MIB_INFINITEMAPRX);
> -		return MAPPING_INVALID;
> +		pr_infinite(msk);
> +		__mptcp_do_infinite(msk);
> +		return MAPPING_INFINITE;
>  	}
>  
>  	if (mpext->data_fin == 1) {

As for patch 3/9, I think we could simply return MAPPING_DUMMY.

/P