On Mon, May 26, 2025 at 1:47 AM Christoph Hellwig <hch@xxxxxx> wrote:
>
> sctp_do_peeloff is only used inside of net/sctp/socket.c,
> so mark it static.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
> include/net/sctp/sctp.h | 2 --
> net/sctp/socket.c | 4 ++--
> 2 files changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
> index d8da764cf6de..e96d1bd087f6 100644
> --- a/include/net/sctp/sctp.h
> +++ b/include/net/sctp/sctp.h
> @@ -364,8 +364,6 @@ sctp_assoc_to_state(const struct sctp_association *asoc)
> /* Look up the association by its id. */
> struct sctp_association *sctp_id2assoc(struct sock *sk, sctp_assoc_t id);
>
> -int sctp_do_peeloff(struct sock *sk, sctp_assoc_t id, struct socket **sockp);
> -
> /* A macro to walk a list of skbs. */
> #define sctp_skb_for_each(pos, head, tmp) \
> skb_queue_walk_safe(head, pos, tmp)
> diff --git a/net/sctp/socket.c b/net/sctp/socket.c
> index 53725ee7ba06..da048e386476 100644
> --- a/net/sctp/socket.c
> +++ b/net/sctp/socket.c
> @@ -5627,7 +5627,8 @@ static int sctp_getsockopt_autoclose(struct sock *sk, int len, char __user *optv
> }
>
> /* Helper routine to branch off an association to a new socket. */
> -int sctp_do_peeloff(struct sock *sk, sctp_assoc_t id, struct socket **sockp)
> +static int sctp_do_peeloff(struct sock *sk, sctp_assoc_t id,
> + struct socket **sockp)
> {
> struct sctp_association *asoc = sctp_id2assoc(sk, id);
> struct sctp_sock *sp = sctp_sk(sk);
> @@ -5675,7 +5676,6 @@ int sctp_do_peeloff(struct sock *sk, sctp_assoc_t id, struct socket **sockp)
>
> return err;
> }
> -EXPORT_SYMBOL(sctp_do_peeloff);
>
I believe sctp_do_peeloff() was exported specifically to allow usage
outside of the core SCTP code. See:
commit 0343c5543b1d3ffa08e6716d82afb62648b80eba
Author: Benjamin Poirier <benjamin.poirier@xxxxxxxxx>
Date: Thu Mar 8 05:55:58 2012 +0000
sctp: Export sctp_do_peeloff
While there’s no known in-tree usage beyond SCTP itself, we can’t be
sure whether this function has been used by out-of-tree kernel modules.
