summaryrefslogtreecommitdiff
path: root/include/net/sctp
diff options
context:
space:
mode:
authorMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>2018-04-26 22:58:55 +0300
committerDavid S. Miller <davem@davemloft.net>2018-04-27 21:35:23 +0300
commit2f5e3c9df6938b823664869ec87af3da8df272f6 (patch)
tree22be567d684b1c89bc40f433099a2909fdbbfb2e /include/net/sctp
parentfeddd6c1af30ab11d73ce0e4e76b40dfc899dbda (diff)
downloadlinux-2f5e3c9df6938b823664869ec87af3da8df272f6.tar.xz
sctp: introduce sctp_assoc_update_frag_point
and avoid the open-coded versions of it. Now sctp_datamsg_from_user can just re-use asoc->frag_point as it will always be updated. Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sctp')
-rw-r--r--include/net/sctp/sctp.h20
-rw-r--r--include/net/sctp/structs.h1
2 files changed, 1 insertions, 20 deletions
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 0b98e4683f10..350c65620a4e 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -428,26 +428,6 @@ static inline int sctp_list_single_entry(struct list_head *head)
return (head->next != head) && (head->next == head->prev);
}
-/* Break down data chunks at this point. */
-static inline int sctp_frag_point(const struct sctp_association *asoc, int pmtu)
-{
- struct sctp_sock *sp = sctp_sk(asoc->base.sk);
- struct sctp_af *af = sp->pf->af;
- int frag = pmtu;
-
- frag -= af->ip_options_len(asoc->base.sk);
- frag -= af->net_header_len;
- frag -= sizeof(struct sctphdr) + sctp_datachk_len(&asoc->stream);
-
- if (asoc->user_frag)
- frag = min_t(int, frag, asoc->user_frag);
-
- frag = SCTP_TRUNC4(min_t(int, frag, SCTP_MAX_CHUNK_LEN -
- sctp_datachk_len(&asoc->stream)));
-
- return frag;
-}
-
static inline void sctp_assoc_pending_pmtu(struct sctp_association *asoc)
{
sctp_assoc_sync_pmtu(asoc);
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index c5e244be8f1e..ebf809eed33a 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -2097,6 +2097,7 @@ int sctp_assoc_update(struct sctp_association *old,
__u32 sctp_association_get_next_tsn(struct sctp_association *);
+void sctp_assoc_update_frag_point(struct sctp_association *asoc);
void sctp_assoc_set_pmtu(struct sctp_association *asoc, __u32 pmtu);
void sctp_assoc_sync_pmtu(struct sctp_association *asoc);
void sctp_assoc_rwnd_increase(struct sctp_association *, unsigned int);