[MEDIUM] session: don't assign conn_retries upon accept() anymore

The conn_retries attribute is now assigned when switching from SI_ST_INI
to SI_ST_REQ. This eliminates one of the last dependencies on the backend
in the frontend's accept() function.

src/frontend.c

@@ -157,7 +157,6 @@ int frontend_accept(struct listener *l, int cfd, struct sockaddr_storage *addr)
 
 	s->srv = s->prev_srv = s->srv_conn = NULL;
 	s->pend_pos = NULL;
-	s->si[1].conn_retries = s->be->conn_retries;
 
 	/* init store persistence */
 	s->store_count = 0;

src/proto_http.c

@@ -6726,7 +6726,6 @@ void http_reset_txn(struct session *s)
 	s->store_count = 0;
 
 	s->pend_pos = NULL;
-	s->req->cons->conn_retries = s->be->conn_retries;
 
 	s->req->flags |= BF_READ_DONTWAIT; /* one read is usually enough */
 

src/proxy.c

@@ -719,7 +719,6 @@ int session_set_backend(struct session *s, struct proxy *be)
 	proxy_inc_be_ctr(be);
 
 	/* assign new parameters to the session from the new backend */
-	s->si[1].conn_retries = be->conn_retries;
 	s->si[1].flags &= ~SI_FL_INDEP_STR;
 	if (be->options2 & PR_O2_INDEPSTR)
 		s->si[1].flags |= SI_FL_INDEP_STR;

src/session.c

@@ -1380,6 +1380,7 @@ resync_stream_interface:
 				 * request.
 				 */
 				s->req->cons->state = SI_ST_REQ; /* new connection requested */
+				s->req->cons->conn_retries = s->be->conn_retries;
 				if (unlikely(s->req->cons->iohandler && !s->req->cons->connect)) {
 					s->req->cons->state = SI_ST_EST; /* connection established */
 					s->rep->flags |= BF_READ_ATTACHED; /* producer is now attached */