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

sctp: get sock from transport in sctp_transport_update_pmtu

Browse Source 
This patch is almost to revert commit 02f3d4ce9e ("sctp: Adjust PMTU
updates to accomodate route invalidation."). As t->asoc can't be NULL
in sctp_transport_update_pmtu, it could get sk from asoc, and no need
to pass sk into that function.

It is also to remove some duplicated codes from that function.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long
2017-04-04 13:39:55 +08:00
committed by David S. Miller
parent e90be21b1c
commit 3ebfdf0821
7 changed files with 22 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
net/sctp/transport.c
View File

@@ -251,14 +251,13 @@ void sctp_transport_pmtu(struct sctp_transport *transport, struct sock *sk)
transport->pathmtu = SCTP_DEFAULT_MAXSEGMENT;
}
void sctp_transport_update_pmtu(struct sock *sk, struct sctp_transport *t, u32 pmtu)
void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu)
{
struct dst_entry *dst;
struct dst_entry *dst = sctp_transport_dst_check(t);
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);
__func__, pmtu, SCTP_DEFAULT_MINSEGMENT);
/* Use default minimum segment size and disable
* pmtu discovery on this transport.
*/
@@ -267,17 +266,13 @@ void sctp_transport_update_pmtu(struct sock *sk, struct sctp_transport *t, u32 p
t->pathmtu = pmtu;
}
dst = sctp_transport_dst_check(t);
if (!dst)
t->af_specific->get_dst(t, &t->saddr, &t->fl, sk);
if (dst) {
dst->ops->update_pmtu(dst, sk, NULL, pmtu);
dst->ops->update_pmtu(dst, t->asoc->base.sk, NULL, pmtu);
dst = sctp_transport_dst_check(t);
if (!dst)
t->af_specific->get_dst(t, &t->saddr, &t->fl, sk);
}
if (!dst)
t->af_specific->get_dst(t, &t->saddr, &t->fl, t->asoc->base.sk);
}
/* Caches the dst entry and source address for a transport's destination