Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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.
Link: https://lore.kernel.org/r/20240329175710.291749-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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include/linux/genetlink.h
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include/linux/genetlink.h
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#include <uapi/linux/genetlink.h>
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-
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/* All generic netlink requests are serialized by a global lock. */
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extern void genl_lock(void);
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extern void genl_unlock(void);
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/* for synchronisation between af_netlink and genetlink */
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extern atomic_t genl_sk_destructing_cnt;
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extern wait_queue_head_t genl_sk_destructing_waitq;
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#define MODULE_ALIAS_GENL_FAMILY(family)\
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MODULE_ALIAS_NET_PF_PROTO_NAME(PF_NETLINK, NETLINK_GENERIC, "-family-" family)
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net/netlink/af_netlink.c
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net/netlink/af_netlink.c
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#include <linux/rhashtable.h>
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#include <asm/cacheflush.h>
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#include <linux/hash.h>
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#include <linux/genetlink.h>
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#include <linux/net_namespace.h>
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#include <linux/nospec.h>
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#include <linux/btf_ids.h>
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#include <trace/events/netlink.h>
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#include "af_netlink.h"
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#include "genetlink.h"
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struct listeners {
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struct rcu_head rcu;
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net/netlink/genetlink.c
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net/netlink/genetlink.c
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net/netlink/genetlink.h
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net/netlink/genetlink.h
···
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __NET_GENETLINK_H
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#define __NET_GENETLINK_H
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#include <linux/wait.h>
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/* for synchronisation between af_netlink and genetlink */
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extern atomic_t genl_sk_destructing_cnt;
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extern wait_queue_head_t genl_sk_destructing_waitq;
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#endif /* __LINUX_GENERIC_NETLINK_H */