Re: [PATCH v3 net-next 2/8] sctp: Don't copy sk_sndbuf and sk_rcvbuf in sctp_sock_migrate().

Xin Long <[email protected]> Fri, 24 Oct 2025 09:55:55 -0400

Newsgroups	org.kernel.vger.linux-sctp,org.kernel.vger.netdev
Message-ID	<CADvbK_dJGFQG9jx5KioFn3-z01w3xO=MeWxwsQ1fUHdkNN6NGw@mail.gmail.com>

On Thu, Oct 23, 2025 at 7:17 PM Kuniyuki Iwashima <[email protected]> wrote:
>
> sctp_sock_migrate() is called from 2 places.
>
> 1) sctp_accept() calls sp->pf->create_accept_sk() before
>    sctp_sock_migrate(), and sp->pf->create_accept_sk() calls
>    sctp_copy_sock().
>
> 2) sctp_do_peeloff() also calls sctp_copy_sock() before
>    sctp_sock_migrate().
>
> sctp_copy_sock() copies sk_sndbuf and sk_rcvbuf from the
> parent socket.
>
> Let's not copy the two fields in sctp_sock_migrate().
>
> Signed-off-by: Kuniyuki Iwashima <[email protected]>
Acked-by: Xin Long <[email protected]>