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Message-ID: <20240329175710.291749-2-kuba@kernel.org>
Date: Fri, 29 Mar 2024 10:57:08 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
edumazet@...gle.com,
pabeni@...hat.com,
dw@...idwei.uk,
jiri@...nulli.us,
andriy.shevchenko@...ux.intel.com,
Jakub Kicinski <kuba@...nel.org>,
kuniyu@...zon.com
Subject: [PATCH net-next v3 1/3] netlink: create a new header for internal genetlink symbols
There are things in linux/genetlink.h which are only used
under net/netlink/. Move them to a new local header.
A new header with just 2 externs isn't great, but alternative
would be to include af_netlink.h in genetlink.c which feels
even worse.
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
CC: kuniyu@...zon.com
CC: jiri@...nulli.us
---
include/linux/genetlink.h | 5 -----
net/netlink/af_netlink.c | 2 +-
net/netlink/genetlink.c | 2 ++
net/netlink/genetlink.h | 11 +++++++++++
4 files changed, 14 insertions(+), 6 deletions(-)
create mode 100644 net/netlink/genetlink.h
diff --git a/include/linux/genetlink.h b/include/linux/genetlink.h
index c285968e437a..9dbd7ba9b858 100644
--- a/include/linux/genetlink.h
+++ b/include/linux/genetlink.h
@@ -4,15 +4,10 @@
#include <uapi/linux/genetlink.h>
-
/* All generic netlink requests are serialized by a global lock. */
extern void genl_lock(void);
extern void genl_unlock(void);
-/* for synchronisation between af_netlink and genetlink */
-extern atomic_t genl_sk_destructing_cnt;
-extern wait_queue_head_t genl_sk_destructing_waitq;
-
#define MODULE_ALIAS_GENL_FAMILY(family)\
MODULE_ALIAS_NET_PF_PROTO_NAME(PF_NETLINK, NETLINK_GENERIC, "-family-" family)
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 7554803218a2..dc8c3c01d51b 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -59,7 +59,6 @@
#include <linux/rhashtable.h>
#include <asm/cacheflush.h>
#include <linux/hash.h>
-#include <linux/genetlink.h>
#include <linux/net_namespace.h>
#include <linux/nospec.h>
#include <linux/btf_ids.h>
@@ -73,6 +72,7 @@
#include <trace/events/netlink.h>
#include "af_netlink.h"
+#include "genetlink.h"
struct listeners {
struct rcu_head rcu;
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 3b7666944b11..feb54c63a116 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -22,6 +22,8 @@
#include <net/sock.h>
#include <net/genetlink.h>
+#include "genetlink.h"
+
static DEFINE_MUTEX(genl_mutex); /* serialization of message processing */
static DECLARE_RWSEM(cb_lock);
diff --git a/net/netlink/genetlink.h b/net/netlink/genetlink.h
new file mode 100644
index 000000000000..89bd9d2631c3
--- /dev/null
+++ b/net/netlink/genetlink.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __NET_GENETLINK_H
+#define __NET_GENETLINK_H
+
+#include <linux/wait.h>
+
+/* for synchronisation between af_netlink and genetlink */
+extern atomic_t genl_sk_destructing_cnt;
+extern wait_queue_head_t genl_sk_destructing_waitq;
+
+#endif /* __LINUX_GENERIC_NETLINK_H */
--
2.44.0
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