xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Browse Source
This commit is contained in:
David S. Miller
2018-01-09 10:37:00 -05:00
parent f4803f1b73 ef7f8cec80
commit a0ce093180
350 changed files with 3949 additions and 1320 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
net/sctp/input.c
View File

@@ -399,20 +399,24 @@ void sctp_icmp_frag_needed(struct sock *sk, struct sctp_association *asoc,
return;
}
if (t->param_flags & SPP_PMTUD_ENABLE) {
/* Update transports view of the MTU */
sctp_transport_update_pmtu(t, pmtu);
if (!(t->param_flags & SPP_PMTUD_ENABLE))
/* We can't allow retransmitting in such case, as the
* retransmission would be sized just as before, and thus we
* would get another icmp, and retransmit again.
*/
return;
/* Update association pmtu. */
sctp_assoc_sync_pmtu(asoc);
}
/* Retransmit with the new pmtu setting.
* Normally, if PMTU discovery is disabled, an ICMP Fragmentation
* Needed will never be sent, but if a message was sent before
* PMTU discovery was disabled that was larger than the PMTU, it
* would not be fragmented, so it must be re-transmitted fragmented.
/* Update transports view of the MTU. Return if no update was needed.
* If an update wasn't needed/possible, it also doesn't make sense to
* try to retransmit now.
*/
if (!sctp_transport_update_pmtu(t, pmtu))
return;
/* Update association pmtu. */
sctp_assoc_sync_pmtu(asoc);
/* Retransmit with the new pmtu setting. */
sctp_retransmit(&asoc->outqueue, t, SCTP_RTXR_PMTUD);
}

22
net/sctp/stream.c
View File

@@ -156,9 +156,9 @@ int sctp_stream_init(struct sctp_stream *stream, __u16 outcnt, __u16 incnt,
sctp_stream_outq_migrate(stream, NULL, outcnt);
sched->sched_all(stream);
i = sctp_stream_alloc_out(stream, outcnt, gfp);
if (i)
return i;
ret = sctp_stream_alloc_out(stream, outcnt, gfp);
if (ret)
goto out;
stream->outcnt = outcnt;
for (i = 0; i < stream->outcnt; i++)
@@ -171,19 +171,17 @@ in:
if (!incnt)
goto out;
i = sctp_stream_alloc_in(stream, incnt, gfp);
if (i) {
ret = -ENOMEM;
goto free;
ret = sctp_stream_alloc_in(stream, incnt, gfp);
if (ret) {
sched->free(stream);
kfree(stream->out);
stream->out = NULL;
stream->outcnt = 0;
goto out;
}
stream->incnt = incnt;
goto out;
free:
sched->free(stream);
kfree(stream->out);
stream->out = NULL;
out:
return ret;
}

29
net/sctp/transport.c
View File

@@ -248,28 +248,37 @@ void sctp_transport_pmtu(struct sctp_transport *transport, struct sock *sk)
transport->pathmtu = SCTP_DEFAULT_MAXSEGMENT;
}
void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu)
bool sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu)
{
struct dst_entry *dst = sctp_transport_dst_check(t);
bool change = true;
if (unlikely(pmtu < SCTP_DEFAULT_MINSEGMENT)) {
pr_warn("%s: Reported pmtu %d too low, using default minimum of %d\n",
__func__, pmtu, SCTP_DEFAULT_MINSEGMENT);
/* Use default minimum segment size and disable
* pmtu discovery on this transport.
*/
t->pathmtu = SCTP_DEFAULT_MINSEGMENT;
} else {
t->pathmtu = pmtu;
pr_warn_ratelimited("%s: Reported pmtu %d too low, using default minimum of %d\n",
__func__, pmtu, SCTP_DEFAULT_MINSEGMENT);
/* Use default minimum segment instead */
pmtu = SCTP_DEFAULT_MINSEGMENT;
}
pmtu = SCTP_TRUNC4(pmtu);
if (dst) {
dst->ops->update_pmtu(dst, t->asoc->base.sk, NULL, pmtu);
dst = sctp_transport_dst_check(t);
}
if (!dst)
if (!dst) {
t->af_specific->get_dst(t, &t->saddr, &t->fl, t->asoc->base.sk);
dst = t->dst;
}
if (dst) {
/* Re-fetch, as under layers may have a higher minimum size */
pmtu = SCTP_TRUNC4(dst_mtu(dst));
change = t->pathmtu != pmtu;
}
t->pathmtu = pmtu;
return change;
}
/* Caches the dst entry and source address for a transport's destination