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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/net/sched/sch_hfsc.c
..
..
@@ -845,16 +845,6 @@
845
845
 }
846
846
 
847
847
 static void
848
-hfsc_purge_queue(struct Qdisc *sch, struct hfsc_class *cl)
849
-{
850
-	unsigned int len = cl->qdisc->q.qlen;
851
-	unsigned int backlog = cl->qdisc->qstats.backlog;
852
-
853
-	qdisc_reset(cl->qdisc);
854
-	qdisc_tree_reduce_backlog(cl->qdisc, len, backlog);
855
-}
856
-
857
-static void
858
848
 hfsc_adjust_levels(struct hfsc_class *cl)
859
849
 {
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850
 	struct hfsc_class *p;
..
..
@@ -936,7 +926,8 @@
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926
 	if (opt == NULL)
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927
 		return -EINVAL;
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928
 
939
-	err = nla_parse_nested(tb, TCA_HFSC_MAX, opt, hfsc_policy, NULL);
929
+	err = nla_parse_nested_deprecated(tb, TCA_HFSC_MAX, opt, hfsc_policy,
930
+					  NULL);
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931
 	if (err < 0)
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 		return err;
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933
 
..
..
@@ -1076,7 +1067,7 @@
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 	qdisc_class_hash_insert(&q->clhash, &cl->cl_common);
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 	list_add_tail(&cl->siblings, &parent->children);
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 	if (parent->level == 0)
1079
-		hfsc_purge_queue(sch, parent);
1070
+		qdisc_purge_queue(parent->qdisc);
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1071
 	hfsc_adjust_levels(parent);
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1072
 	sch_tree_unlock(sch);
1082
1073
 
..
..
@@ -1112,7 +1103,7 @@
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 	list_del(&cl->siblings);
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1104
 	hfsc_adjust_levels(cl->cl_parent);
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1105
 
1115
-	hfsc_purge_queue(sch, cl);
1106
+	qdisc_purge_queue(cl->qdisc);
1116
1107
 	qdisc_class_hash_remove(&q->clhash, &cl->cl_common);
1117
1108
 
1118
1109
 	sch_tree_unlock(sch);
..
..
@@ -1145,7 +1136,7 @@
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1136
 		case TC_ACT_STOLEN:
1146
1137
 		case TC_ACT_TRAP:
1147
1138
 			*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
1148
-			/* fall through */
1139
+			fallthrough;
1149
1140
 		case TC_ACT_SHOT:
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1141
 			return NULL;
1151
1142
 		}
..
..
@@ -1310,7 +1301,7 @@
1310
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 	if (cl->level == 0)
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1302
 		tcm->tcm_info = cl->qdisc->handle;
1312
1303
 
1313
-	nest = nla_nest_start(skb, TCA_OPTIONS);
1304
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
1314
1305
 	if (nest == NULL)
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1306
 		goto nla_put_failure;
1316
1307
 	if (hfsc_dump_curves(skb, cl) < 0)
..
..
@@ -1328,8 +1319,9 @@
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 {
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 	struct hfsc_class *cl = (struct hfsc_class *)arg;
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1321
 	struct tc_hfsc_stats xstats;
1322
+	__u32 qlen;
1331
1323
 
1332
-	cl->qstats.backlog = cl->qdisc->qstats.backlog;
1324
+	qdisc_qstats_qlen_backlog(cl->qdisc, &qlen, &cl->qstats.backlog);
1333
1325
 	xstats.level   = cl->level;
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1326
 	xstats.period  = cl->cl_vtperiod;
1335
1327
 	xstats.work    = cl->cl_total;
..
..
@@ -1337,7 +1329,7 @@
1337
1329
 
1338
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 	if (gnet_stats_copy_basic(qdisc_root_sleeping_running(sch), d, NULL, &cl->bstats) < 0 ||
1339
1331
 	    gnet_stats_copy_rate_est(d, &cl->rate_est) < 0 ||
1340
-	    gnet_stats_copy_queue(d, NULL, &cl->qstats, cl->qdisc->q.qlen) < 0)
1332
+	    gnet_stats_copy_queue(d, NULL, &cl->qstats, qlen) < 0)
1341
1333
 		return -1;
1342
1334
 
1343
1335
 	return gnet_stats_copy_app(d, &xstats, sizeof(xstats));
..
..
@@ -1492,8 +1484,6 @@
1492
1484
 	}
1493
1485
 	q->eligible = RB_ROOT;
1494
1486
 	qdisc_watchdog_cancel(&q->watchdog);
1495
-	sch->qstats.backlog = 0;
1496
-	sch->q.qlen = 0;
1497
1487
 }
1498
1488
 
1499
1489
 static void
..
..
@@ -1539,8 +1529,10 @@
1539
1529
 static int
1540
1530
 hfsc_enqueue(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff **to_free)
1541
1531
 {
1532
+	unsigned int len = qdisc_pkt_len(skb);
1542
1533
 	struct hfsc_class *cl;
1543
-	int uninitialized_var(err);
1534
+	int err;
1535
+	bool first;
1544
1536
 
1545
1537
 	cl = hfsc_classify(skb, sch, &err);
1546
1538
 	if (cl == NULL) {
..
..
@@ -1550,6 +1542,7 @@
1550
1542
 		return err;
1551
1543
 	}
1552
1544
 
1545
+	first = !cl->qdisc->q.qlen;
1553
1546
 	err = qdisc_enqueue(skb, cl->qdisc, to_free);
1554
1547
 	if (unlikely(err != NET_XMIT_SUCCESS)) {
1555
1548
 		if (net_xmit_drop_count(err)) {
..
..
@@ -1559,9 +1552,7 @@
1559
1552
 		return err;
1560
1553
 	}
1561
1554
 
1562
-	if (cl->qdisc->q.qlen == 1) {
1563
-		unsigned int len = qdisc_pkt_len(skb);
1564
-
1555
+	if (first) {
1565
1556
 		if (cl->cl_flags & HFSC_RSC)
1566
1557
 			init_ed(cl, len);
1567
1558
 		if (cl->cl_flags & HFSC_FSC)
..
..
@@ -1576,7 +1567,7 @@
1576
1567
 
1577
1568
 	}
1578
1569
 
1579
-	qdisc_qstats_backlog_inc(sch, skb);
1570
+	sch->qstats.backlog += len;
1580
1571
 	sch->q.qlen++;
1581
1572
 
1582
1573
 	return NET_XMIT_SUCCESS;