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sctp: define subscribe in sctp_sock as __u16

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The member subscribe in sctp_sock is used to indicate to which of
the events it is subscribed, more like a group of flags. So it's
better to be defined as __u16 (2 bytpes), instead of struct
sctp_event_subscribe (13 bytes).

Note that sctp_event_subscribe is an UAPI struct, used on sockopt
calls, and thus it will not be removed. This patch only changes
the internal storage of the flags.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long 2018-11-18 16:08:51 +08:00 • committed by David S. Miller
parent f2be6d710d
commit 2cc0eeb676
7 changed files with 69 additions and 38 deletions
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8
net/sctp/ulpqueue.c
View file

@ -219,7 +219,7 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
sk_incoming_cpu_update(sk);
}
/* Check if the user wishes to receive this event. */
if (!sctp_ulpevent_is_enabled(event, &sp->subscribe))
if (!sctp_ulpevent_is_enabled(event, sp->subscribe))
goto out_free;
/* If we are in partial delivery mode, post to the lobby until
@ -1129,16 +1129,16 @@ void sctp_ulpq_renege(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk,
void sctp_ulpq_abort_pd(struct sctp_ulpq *ulpq, gfp_t gfp)
{
struct sctp_ulpevent *ev = NULL;
struct sock *sk;
struct sctp_sock *sp;
struct sock *sk;
if (!ulpq->pd_mode)
return;
sk = ulpq->asoc->base.sk;
sp = sctp_sk(sk);
if (sctp_ulpevent_type_enabled(SCTP_PARTIAL_DELIVERY_EVENT,
&sctp_sk(sk)->subscribe))
if (sctp_ulpevent_type_enabled(sp->subscribe,
SCTP_PARTIAL_DELIVERY_EVENT))
ev = sctp_ulpevent_make_pdapi(ulpq->asoc,
SCTP_PARTIAL_DELIVERY_ABORTED,
0, 0, 0, gfp);