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-rw-r--r--include/net/sctp/sctp.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 9c6414f553f..7fdf298a47e 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -272,6 +272,18 @@ struct sctp_mib {
unsigned long mibs[SCTP_MIB_MAX];
};
+/* helper function to track stats about max rto and related transport */
+static inline void sctp_max_rto(struct sctp_association *asoc,
+ struct sctp_transport *trans)
+{
+ if (asoc->stats.max_obs_rto < (__u64)trans->rto) {
+ asoc->stats.max_obs_rto = trans->rto;
+ memset(&asoc->stats.obs_rto_ipaddr, 0,
+ sizeof(struct sockaddr_storage));
+ memcpy(&asoc->stats.obs_rto_ipaddr, &trans->ipaddr,
+ trans->af_specific->sockaddr_len);
+ }
+}
/* Print debugging messages. */
#if SCTP_DEBUG