net: move dropreason.h to dropreason-core.h

This will, after the next patch, hold only the core
drop reasons and minimal infrastructure. Fix a small
kernel-doc issue while at it, to avoid the move
triggering a checker.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

include/linux/netdevice.h

@@ -52,7 +52,7 @@
 #include <linux/rbtree.h>
 #include <net/net_trackers.h>
 #include <net/net_debug.h>
-#include <net/dropreason.h>
+#include <net/dropreason-core.h>
 
 struct netpoll_info;
 struct device;

include/linux/skbuff.h

@@ -37,7 +37,7 @@
 #include <linux/netfilter/nf_conntrack_common.h>
 #endif
 #include <net/net_debug.h>
-#include <net/dropreason.h>
+#include <net/dropreason-core.h>
 
 /**
  * DOC: skb checksums

include/net/dropreason.h → include/net/dropreason-core.h

 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
-#ifndef _LINUX_DROPREASON_H
-#define _LINUX_DROPREASON_H
+#ifndef _LINUX_DROPREASON_CORE_H
+#define _LINUX_DROPREASON_CORE_H
 
 #define DEFINE_DROP_REASON(FN, FNe)	\
 	FN(NOT_SPECIFIED)		\
@@ -334,7 +334,8 @@ enum skb_drop_reason {
 	SKB_DROP_REASON_IPV6_NDISC_BAD_CODE,
 	/** @SKB_DROP_REASON_IPV6_NDISC_BAD_OPTIONS: invalid NDISC options. */
 	SKB_DROP_REASON_IPV6_NDISC_BAD_OPTIONS,
-	/** @SKB_DROP_REASON_IPV6_NDISC_NS_OTHERHOST: NEIGHBOUR SOLICITATION
+	/**
+	 * @SKB_DROP_REASON_IPV6_NDISC_NS_OTHERHOST: NEIGHBOUR SOLICITATION
 	 * for another host.
 	 */
 	SKB_DROP_REASON_IPV6_NDISC_NS_OTHERHOST,

include/net/inet_frag.h

@@ -7,7 +7,7 @@
 #include <linux/in6.h>
 #include <linux/rbtree_types.h>
 #include <linux/refcount.h>
-#include <net/dropreason.h>
+#include <net/dropreason-core.h>
 
 /* Per netns frag queues directory */
 struct fqdir {