network: Remove circular header dependencies in network/tc

Include the headers in the implementation file (and the gperf file)
instead of in the qdisc.h header. I opted to keep them separate from
the other headers since they're slightly different than regular headers.

src/network/networkd-network-gperf.gperf

@@ -41,6 +41,27 @@ _Pragma("GCC diagnostic ignored \"-Wzero-as-null-pointer-constant\"")
 #include "qdisc.h"
 #include "tclass.h"
 #include "vlan-util.h"
+
+#include "cake.h"
+#include "codel.h"
+#include "ets.h"
+#include "fifo.h"
+#include "fq-codel.h"
+#include "fq-pie.h"
+#include "fq.h"
+#include "gred.h"
+#include "hhf.h"
+#include "htb.h"
+#include "mq.h"
+#include "multiq.h"
+#include "pie.h"
+#include "qfq.h"
+#include "netem.h"
+#include "drr.h"
+#include "sfb.h"
+#include "sfq.h"
+#include "tbf.h"
+#include "teql.h"
 %}
 struct ConfigPerfItem;
 %null_strings

src/network/tc/codel.c

@@ -4,10 +4,10 @@
 #include <linux/pkt_sched.h>
 
 #include "alloc-util.h"
+#include "codel.h"
 #include "conf-parser.h"
 #include "netlink-util.h"
 #include "parse-util.h"
-#include "qdisc.h"
 #include "string-util.h"
 
 static int controlled_delay_init(QDisc *qdisc) {

src/network/tc/drr.h

@@ -3,6 +3,7 @@
 #pragma once
 
 #include "qdisc.h"
+#include "tclass.h"
 
 typedef struct DeficitRoundRobinScheduler {
         QDisc meta;

src/network/tc/fq-codel.c

@@ -5,9 +5,9 @@
 
 #include "alloc-util.h"
 #include "conf-parser.h"
+#include "fq-codel.h"
 #include "netlink-util.h"
 #include "parse-util.h"
-#include "qdisc.h"
 #include "string-util.h"
 #include "strv.h"
 

src/network/tc/gred.c

@@ -5,9 +5,9 @@
 
 #include "alloc-util.h"
 #include "conf-parser.h"
+#include "gred.h"
 #include "netlink-util.h"
 #include "parse-util.h"
-#include "qdisc.h"
 #include "string-util.h"
 
 static int generic_random_early_detection_init(QDisc *qdisc) {

src/network/tc/multiq.c

@@ -1,5 +1,7 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
+#include <linux/pkt_sched.h>
+
 #include "multiq.h"
 
 static int multi_queueing_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req) {

src/network/tc/qdisc.c

@@ -18,6 +18,27 @@
 #include "strv.h"
 #include "tc-util.h"
 
+#include "cake.h"
+#include "codel.h"
+#include "ets.h"
+#include "fifo.h"
+#include "fq-codel.h"
+#include "fq-pie.h"
+#include "fq.h"
+#include "gred.h"
+#include "hhf.h"
+#include "htb.h"
+#include "mq.h"
+#include "multiq.h"
+#include "pie.h"
+#include "qfq.h"
+#include "netem.h"
+#include "drr.h"
+#include "sfb.h"
+#include "sfq.h"
+#include "tbf.h"
+#include "teql.h"
+
 const QDiscVTable * const qdisc_vtable[_QDISC_KIND_MAX] = {
         [QDISC_KIND_BFIFO]           = &bfifo_vtable,
         [QDISC_KIND_CAKE]            = &cake_vtable,

src/network/tc/qdisc.h

@@ -97,24 +97,3 @@ DEFINE_SECTION_CLEANUP_FUNCTIONS(QDisc, qdisc_unref);
 
 CONFIG_PARSER_PROTOTYPE(config_parse_qdisc_parent);
 CONFIG_PARSER_PROTOTYPE(config_parse_qdisc_handle);
-
-#include "cake.h"
-#include "codel.h"
-#include "ets.h"
-#include "fifo.h"
-#include "fq-codel.h"
-#include "fq-pie.h"
-#include "fq.h"
-#include "gred.h"
-#include "hhf.h"
-#include "htb.h"
-#include "mq.h"
-#include "multiq.h"
-#include "pie.h"
-#include "qfq.h"
-#include "netem.h"
-#include "drr.h"
-#include "sfb.h"
-#include "sfq.h"
-#include "tbf.h"
-#include "teql.h"

src/network/tc/qfq.h

@@ -4,6 +4,7 @@
 
 #include "conf-parser.h"
 #include "qdisc.h"
+#include "tclass.h"
 
 typedef struct QuickFairQueueing {
         QDisc meta;

src/network/tc/tbf.c

@@ -10,9 +10,9 @@
 #include "netlink-util.h"
 #include "networkd-manager.h"
 #include "parse-util.h"
-#include "qdisc.h"
 #include "string-util.h"
 #include "strv.h"
+#include "tbf.h"
 #include "tc-util.h"
 
 static int token_bucket_filter_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req) {

src/network/tc/tclass.c

@@ -18,6 +18,10 @@
 #include "tc-util.h"
 #include "tclass.h"
 
+#include "drr.h"
+#include "htb.h"
+#include "qfq.h"
+
 const TClassVTable * const tclass_vtable[_TCLASS_KIND_MAX] = {
         [TCLASS_KIND_DRR] = &drr_tclass_vtable,
         [TCLASS_KIND_HTB] = &htb_tclass_vtable,

src/network/tc/tclass.h

@@ -77,7 +77,3 @@ DEFINE_SECTION_CLEANUP_FUNCTIONS(TClass, tclass_unref);
 
 CONFIG_PARSER_PROTOTYPE(config_parse_tclass_parent);
 CONFIG_PARSER_PROTOTYPE(config_parse_tclass_classid);
-
-#include "drr.h"
-#include "htb.h"
-#include "qfq.h"