[PATCH v6] ipvs: adjust the debug info in function set_tcp_state

["longguang.yue" <bigclouds@xxxxxxx>]

Outputting client,virtual,dst addresses info when tcp state changes,
which makes the connection debug more clear

---
v5,v6: fix indentation and add changelogs
v3,v4: fix checkpatch
v2: IP_VS_DBG_BUF outputs src,virtual,dst of ip_vs_conn
v1: fix the inverse of src and dst address

Signed-off-by: longguang.yue <bigclouds@xxxxxxx>
---
 net/netfilter/ipvs/ip_vs_proto_tcp.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c 
b/net/netfilter/ipvs/ip_vs_proto_tcp.c
index dc2e7da2742a..7da51390cea6 100644
--- a/net/netfilter/ipvs/ip_vs_proto_tcp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c
@@ -539,8 +539,8 @@ set_tcp_state(struct ip_vs_proto_data *pd, struct 
ip_vs_conn *cp,
        if (new_state != cp->state) {
                struct ip_vs_dest *dest = cp->dest;
 
-               IP_VS_DBG_BUF(8, "%s %s [%c%c%c%c] %s:%d->"
-                             "%s:%d state: %s->%s conn->refcnt:%d\n",
+               IP_VS_DBG_BUF(8, "%s %s [%c%c%c%c] c:%s:%d v:%s:%d "
+                             "d:%s:%d state: %s->%s conn->refcnt:%d\n",
                              pd->pp->name,
                              ((state_off == TCP_DIR_OUTPUT) ?
                               "output " : "input "),
@@ -548,10 +548,12 @@ set_tcp_state(struct ip_vs_proto_data *pd, struct 
ip_vs_conn *cp,
                              th->fin ? 'F' : '.',
                              th->ack ? 'A' : '.',
                              th->rst ? 'R' : '.',
-                             IP_VS_DBG_ADDR(cp->daf, &cp->daddr),
-                             ntohs(cp->dport),
                              IP_VS_DBG_ADDR(cp->af, &cp->caddr),
                              ntohs(cp->cport),
+                             IP_VS_DBG_ADDR(cp->af, &cp->vaddr),
+                             ntohs(cp->vport),
+                             IP_VS_DBG_ADDR(cp->daf, &cp->daddr),
+                             ntohs(cp->dport),
                              tcp_state_name(cp->state),
                              tcp_state_name(new_state),
                              refcount_read(&cp->refcnt));
-- 
2.20.1 (Apple Git-117)