net: Don't include filter.h from net/sock.h

sock.h is pretty heavily used (5k objects rebuilt on x86 after
it's touched). We can drop the include of filter.h from it and
add a forward declaration of struct sk_filter instead.
This decreases the number of rebuilt objects when bpf.h
is touched from ~5k to ~1k.

There's a lot of missing includes this was masking. Primarily
in networking tho, this time.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/bpf/20211229004913.513372-1-kuba@kernel.org

drivers/bluetooth/btqca.c

@@ -6,6 +6,7 @@
  */
 #include <linux/module.h>
 #include <linux/firmware.h>
+#include <linux/vmalloc.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>

drivers/infiniband/core/cache.c

@@ -33,6 +33,7 @@
  * SOFTWARE.
  */
 
+#include <linux/if_vlan.h>
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/slab.h>

drivers/infiniband/hw/irdma/ctrl.c

@@ -1,5 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
 /* Copyright (c) 2015 - 2021 Intel Corporation */
+#include <linux/etherdevice.h>
+
 #include "osdep.h"
 #include "status.h"
 #include "hmc.h"

drivers/infiniband/hw/irdma/uda.c

@@ -1,5 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
 /* Copyright (c) 2016 - 2021 Intel Corporation */
+#include <linux/etherdevice.h>
+
 #include "osdep.h"
 #include "status.h"
 #include "hmc.h"

drivers/infiniband/hw/mlx5/doorbell.c

@@ -32,6 +32,7 @@
 
 #include <linux/kref.h>
 #include <linux/slab.h>
+#include <linux/sched/mm.h>
 #include <rdma/ib_umem.h>
 
 #include "mlx5_ib.h"

drivers/infiniband/hw/mlx5/qp.c

@@ -30,6 +30,7 @@
  * SOFTWARE.
  */
 
+#include <linux/etherdevice.h>
 #include <linux/module.h>
 #include <rdma/ib_umem.h>
 #include <rdma/ib_cache.h>

drivers/net/amt.c

@@ -11,6 +11,7 @@
 #include <linux/net.h>
 #include <linux/igmp.h>
 #include <linux/workqueue.h>
+#include <net/sch_generic.h>
 #include <net/net_namespace.h>
 #include <net/ip.h>
 #include <net/udp.h>

drivers/net/appletalk/ipddp.c

@@ -23,6 +23,7 @@
  *      of the GNU General Public License, incorporated herein by reference.
  */
 
+#include <linux/compat.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>

drivers/net/bonding/bond_main.c

@@ -35,6 +35,7 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/fcntl.h>
+#include <linux/filter.h>
 #include <linux/interrupt.h>
 #include <linux/ptrace.h>
 #include <linux/ioport.h>

drivers/net/can/usb/peak_usb/pcan_usb.c

@@ -8,6 +8,7 @@
  *
  * Many thanks to Klaus Hitschler <klaus.hitschler@gmx.de>
  */
+#include <asm/unaligned.h>
 #include <linux/netdevice.h>
 #include <linux/usb.h>
 #include <linux/module.h>

drivers/net/dsa/microchip/ksz8795.c

@@ -10,6 +10,7 @@
 #include <linux/delay.h>
 #include <linux/export.h>
 #include <linux/gpio.h>
+#include <linux/if_vlan.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_data/microchip-ksz.h>

drivers/net/dsa/xrs700x/xrs700x.c

@@ -5,6 +5,7 @@
  */
 
 #include <net/dsa.h>
+#include <linux/etherdevice.h>
 #include <linux/if_bridge.h>
 #include <linux/of_device.h>
 #include <linux/netdev_features.h>

drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c

@@ -9,6 +9,7 @@
 
 #include <linux/pci.h>
 #include <linux/netdevice.h>
+#include <linux/vmalloc.h>
 #include <net/devlink.h>
 #include "bnxt_hsi.h"
 #include "bnxt.h"

drivers/net/ethernet/huawei/hinic/hinic_tx.c

@@ -4,6 +4,7 @@
  * Copyright(c) 2017 Huawei Technologies Co., Ltd
  */
 
+#include <linux/if_vlan.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
 #include <linux/u64_stats_sync.h>

drivers/net/ethernet/intel/ice/ice_devlink.c

@@ -1,6 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright (c) 2020, Intel Corporation. */
 
+#include <linux/vmalloc.h>
+
 #include "ice.h"
 #include "ice_lib.h"
 #include "ice_devlink.h"

drivers/net/ethernet/intel/ice/ice_txrx_lib.c

@@ -1,6 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright (c) 2019, Intel Corporation. */
 
+#include <linux/filter.h>
+
 #include "ice_txrx_lib.h"
 #include "ice_eswitch.h"
 #include "ice_lib.h"

drivers/net/ethernet/intel/igc/igc_xdp.c

@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright (c) 2020, Intel Corporation. */
 
+#include <linux/if_vlan.h>
 #include <net/xdp_sock_drv.h>
 
 #include "igc.h"

drivers/net/ethernet/mellanox/mlx4/en_netdev.c

@@ -33,6 +33,7 @@
 
 #include <linux/bpf.h>
 #include <linux/etherdevice.h>
+#include <linux/filter.h>
 #include <linux/tcp.h>
 #include <linux/if_vlan.h>
 #include <linux/delay.h>

drivers/net/ethernet/mellanox/mlx5/core/en/qos.c

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
 /* Copyright (c) 2020, Mellanox Technologies inc. All rights reserved. */
+#include <net/sch_generic.h>
 
 #include "en.h"
 #include "params.h"

drivers/net/ethernet/sfc/efx.c

@@ -5,6 +5,7 @@
  * Copyright 2005-2013 Solarflare Communications Inc.
  */
 
+#include <linux/filter.h>
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/netdevice.h>

drivers/net/ethernet/sfc/efx_channels.c

@@ -10,6 +10,7 @@
 
 #include "net_driver.h"
 #include <linux/module.h>
+#include <linux/filter.h>
 #include "efx_channels.h"
 #include "efx.h"
 #include "efx_common.h"

drivers/net/ethernet/sfc/efx_common.c

@@ -9,6 +9,7 @@
  */
 
 #include "net_driver.h"
+#include <linux/filter.h>
 #include <linux/module.h>
 #include <linux/netdevice.h>
 #include <net/gre.h>

drivers/net/hamradio/hdlcdrv.c

@@ -30,6 +30,7 @@
 /*****************************************************************************/
 
 #include <linux/capability.h>
+#include <linux/compat.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/net.h>

drivers/net/hamradio/scc.c

@@ -148,6 +148,7 @@
 
 /* ----------------------------------------------------------------------- */
 
+#include <linux/compat.h>
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/signal.h>

drivers/net/loopback.c

@@ -44,6 +44,7 @@
 #include <linux/etherdevice.h>
 #include <linux/skbuff.h>
 #include <linux/ethtool.h>
+#include <net/sch_generic.h>
 #include <net/sock.h>
 #include <net/checksum.h>
 #include <linux/if_ether.h>	/* For the statistics structure. */

drivers/net/vrf.c

@@ -34,6 +34,7 @@
 #include <net/addrconf.h>
 #include <net/l3mdev.h>
 #include <net/fib_rules.h>
+#include <net/sch_generic.h>
 #include <net/netns/generic.h>
 #include <net/netfilter/nf_conntrack.h>
 

drivers/net/wireless/ath/ath11k/debugfs.c

@@ -3,6 +3,8 @@
  * Copyright (c) 2018-2020 The Linux Foundation. All rights reserved.
  */
 
+#include <linux/vmalloc.h>
+
 #include "debugfs.h"
 
 #include "core.h"

drivers/net/wireless/realtek/rtw89/debug.c

@@ -2,6 +2,8 @@
 /* Copyright(c) 2019-2020  Realtek Corporation
  */
 
+#include <linux/vmalloc.h>
+
 #include "coex.h"
 #include "debug.h"
 #include "fw.h"

fs/nfs/dir.c

@@ -18,6 +18,7 @@
  *  6 Jun 1999	Cache readdir lookups in the page cache. -DaveM
  */
 
+#include <linux/compat.h>
 #include <linux/module.h>
 #include <linux/time.h>
 #include <linux/errno.h>

fs/nfs/fs_context.c

@@ -10,6 +10,7 @@
  * Split from fs/nfs/super.c by David Howells <dhowells@redhat.com>
  */
 
+#include <linux/compat.h>
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/fs_context.h>

fs/select.c

@@ -15,6 +15,7 @@
  *     of fds to overcome nfds < 16390 descriptors limit (Tigran Aivazian).
  */
 
+#include <linux/compat.h>
 #include <linux/kernel.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/rt.h>

include/linux/bpf_local_storage.h

@@ -8,6 +8,7 @@
 #define _BPF_LOCAL_STORAGE_H
 
 #include <linux/bpf.h>
+#include <linux/filter.h>
 #include <linux/rculist.h>
 #include <linux/list.h>
 #include <linux/hash.h>

include/linux/dsa/loop.h

@@ -2,6 +2,7 @@
 #ifndef DSA_LOOP_H
 #define DSA_LOOP_H
 
+#include <linux/if_vlan.h>
 #include <linux/types.h>
 #include <linux/ethtool.h>
 #include <net/dsa.h>

include/net/ipv6.h

@@ -21,6 +21,8 @@
 #include <net/snmp.h>
 #include <net/netns/hash.h>
 
+struct ip_tunnel_info;
+
 #define SIN6_LEN_RFC2133	24
 
 #define IPV6_MAXPLEN		65535

include/net/route.h

@@ -43,6 +43,7 @@
 #define RT_CONN_FLAGS(sk)   (RT_TOS(inet_sk(sk)->tos) | sock_flag(sk, SOCK_LOCALROUTE))
 #define RT_CONN_FLAGS_TOS(sk,tos)   (RT_TOS(tos) | sock_flag(sk, SOCK_LOCALROUTE))
 
+struct ip_tunnel_info;
 struct fib_nh;
 struct fib_info;
 struct uncached_list;

include/net/sock.h

@@ -56,7 +56,6 @@
 #include <linux/wait.h>
 #include <linux/cgroup-defs.h>
 #include <linux/rbtree.h>
-#include <linux/filter.h>
 #include <linux/rculist_nulls.h>
 #include <linux/poll.h>
 #include <linux/sockptr.h>
@@ -249,6 +248,7 @@ struct sock_common {
 };
 
 struct bpf_local_storage;
+struct sk_filter;
 
 /**
   *	struct sock - network layer representation of sockets

include/net/xdp_sock.h

@@ -6,6 +6,7 @@
 #ifndef _LINUX_XDP_SOCK_H
 #define _LINUX_XDP_SOCK_H
 
+#include <linux/bpf.h>
 #include <linux/workqueue.h>
 #include <linux/if_xdp.h>
 #include <linux/mutex.h>

kernel/sysctl.c

@@ -33,6 +33,7 @@
 #include <linux/security.h>
 #include <linux/ctype.h>
 #include <linux/kmemleak.h>
+#include <linux/filter.h>
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/kernel.h>

net/bluetooth/bnep/sock.c

@@ -24,6 +24,7 @@
    SOFTWARE IS DISCLAIMED.
 */
 
+#include <linux/compat.h>
 #include <linux/export.h>
 #include <linux/file.h>
 

net/bluetooth/eir.h

@@ -5,6 +5,8 @@
  * Copyright (C) 2021 Intel Corporation
  */
 
+#include <asm/unaligned.h>
+
 void eir_create(struct hci_dev *hdev, u8 *data);
 
 u8 eir_create_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr);

net/bluetooth/hidp/sock.c

@@ -20,6 +20,7 @@
    SOFTWARE IS DISCLAIMED.
 */
 
+#include <linux/compat.h>
 #include <linux/export.h>
 #include <linux/file.h>
 

net/bluetooth/l2cap_sock.c

@@ -29,6 +29,7 @@
 
 #include <linux/module.h>
 #include <linux/export.h>
+#include <linux/filter.h>
 #include <linux/sched/signal.h>
 
 #include <net/bluetooth/bluetooth.h>

net/bridge/br_ioctl.c

@@ -8,6 +8,7 @@
  */
 
 #include <linux/capability.h>
+#include <linux/compat.h>
 #include <linux/kernel.h>
 #include <linux/if_bridge.h>
 #include <linux/netdevice.h>

net/caif/caif_socket.c

@@ -6,6 +6,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ":%s(): " fmt, __func__
 
+#include <linux/filter.h>
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/module.h>

net/core/devlink.c

@@ -7,6 +7,7 @@
  * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
  */
 
+#include <linux/etherdevice.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/types.h>

net/core/flow_dissector.c

@@ -5,6 +5,7 @@
 #include <linux/ip.h>
 #include <linux/ipv6.h>
 #include <linux/if_vlan.h>
+#include <linux/filter.h>
 #include <net/dsa.h>
 #include <net/dst_metadata.h>
 #include <net/ip.h>

net/core/lwt_bpf.c

@@ -2,6 +2,7 @@
 /* Copyright (c) 2016 Thomas Graf <tgraf@tgraf.ch>
  */
 
+#include <linux/filter.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/skbuff.h>

net/core/sock_diag.c

@@ -1,5 +1,6 @@
 /* License: GPL */
 
+#include <linux/filter.h>
 #include <linux/mutex.h>
 #include <linux/socket.h>
 #include <linux/skbuff.h>

net/core/sysctl_net_core.c

@@ -6,6 +6,7 @@
  * Added /proc/sys/net/core directory entry (empty =) ). [MS]
  */
 
+#include <linux/filter.h>
 #include <linux/mm.h>
 #include <linux/sysctl.h>
 #include <linux/module.h>

net/decnet/dn_nsp_in.c

@@ -38,6 +38,7 @@
 *******************************************************************************/
 
 #include <linux/errno.h>
+#include <linux/filter.h>
 #include <linux/types.h>
 #include <linux/socket.h>
 #include <linux/in.h>

net/dsa/dsa_priv.h

@@ -8,6 +8,7 @@
 #define __DSA_PRIV_H
 
 #include <linux/if_bridge.h>
+#include <linux/if_vlan.h>
 #include <linux/phy.h>
 #include <linux/netdevice.h>
 #include <linux/netpoll.h>

net/ethtool/ioctl.c

@@ -8,6 +8,7 @@
  */
 
 #include <linux/compat.h>
+#include <linux/etherdevice.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/capability.h>

net/ipv4/nexthop.c

@@ -8,6 +8,7 @@
 #include <linux/nexthop.h>
 #include <linux/rtnetlink.h>
 #include <linux/slab.h>
+#include <linux/vmalloc.h>
 #include <net/arp.h>
 #include <net/ipv6_stubs.h>
 #include <net/lwtunnel.h>

net/ipv6/ip6_fib.c

@@ -15,6 +15,7 @@
 
 #define pr_fmt(fmt) "IPv6: " fmt
 
+#include <linux/bpf.h>
 #include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/net.h>

net/ipv6/seg6_local.c

@@ -7,6 +7,7 @@
  *  eBPF support: Mathieu Xhonneux <m.xhonneux@gmail.com>
  */
 
+#include <linux/filter.h>
 #include <linux/types.h>
 #include <linux/skbuff.h>
 #include <linux/net.h>

net/iucv/af_iucv.c

@@ -13,6 +13,7 @@
 #define KMSG_COMPONENT "af_iucv"
 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
 
+#include <linux/filter.h>
 #include <linux/module.h>
 #include <linux/netdevice.h>
 #include <linux/types.h>

net/kcm/kcmsock.c

@@ -9,6 +9,7 @@
 #include <linux/errno.h>
 #include <linux/errqueue.h>
 #include <linux/file.h>
+#include <linux/filter.h>
 #include <linux/in.h>
 #include <linux/kernel.h>
 #include <linux/module.h>

net/netfilter/nfnetlink_hook.c

@@ -6,6 +6,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/kallsyms.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/skbuff.h>

net/netfilter/nft_reject_netdev.c

@@ -4,6 +4,7 @@
  * Copyright (c) 2020 Jose M. Guisado <guigom@riseup.net>
  */
 
+#include <linux/etherdevice.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/module.h>

net/netlink/af_netlink.c

@@ -20,8 +20,10 @@
 
 #include <linux/module.h>
 
+#include <linux/bpf.h>
 #include <linux/capability.h>
 #include <linux/kernel.h>
+#include <linux/filter.h>
 #include <linux/init.h>
 #include <linux/signal.h>
 #include <linux/sched.h>

net/packet/af_packet.c

@@ -49,6 +49,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/ethtool.h>
+#include <linux/filter.h>
 #include <linux/types.h>
 #include <linux/mm.h>
 #include <linux/capability.h>

net/rose/rose_in.c

@@ -9,6 +9,7 @@
  * diagrams as the code is not obvious and probably very easy to break.
  */
 #include <linux/errno.h>
+#include <linux/filter.h>
 #include <linux/types.h>
 #include <linux/socket.h>
 #include <linux/in.h>

net/sched/sch_frag.c

@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+#include <linux/if_vlan.h>
 #include <net/netlink.h>
 #include <net/sch_generic.h>
 #include <net/dst.h>

net/smc/smc_ib.c

@@ -12,6 +12,8 @@
  *  Author(s):  Ursula Braun <ubraun@linux.vnet.ibm.com>
  */
 
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
 #include <linux/random.h>
 #include <linux/workqueue.h>
 #include <linux/scatterlist.h>

net/smc/smc_ism.c

@@ -6,6 +6,7 @@
  * Copyright IBM Corp. 2018
  */
 
+#include <linux/if_vlan.h>
 #include <linux/spinlock.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>

net/unix/af_unix.c

@@ -89,6 +89,7 @@
 #include <linux/socket.h>
 #include <linux/un.h>
 #include <linux/fcntl.h>
+#include <linux/filter.h>
 #include <linux/termios.h>
 #include <linux/sockios.h>
 #include <linux/net.h>

net/vmw_vsock/af_vsock.c

@@ -85,6 +85,7 @@
  *   TCP_LISTEN - listening
  */
 
+#include <linux/compat.h>
 #include <linux/types.h>
 #include <linux/bitops.h>
 #include <linux/cred.h>

net/xdp/xskmap.c

@@ -4,6 +4,7 @@
  */
 
 #include <linux/bpf.h>
+#include <linux/filter.h>
 #include <linux/capability.h>
 #include <net/xdp_sock.h>
 #include <linux/slab.h>

net/xfrm/xfrm_state.c

@@ -14,6 +14,7 @@
  *
  */
 
+#include <linux/compat.h>
 #include <linux/workqueue.h>
 #include <net/xfrm.h>
 #include <linux/pfkeyv2.h>

net/xfrm/xfrm_user.c

@@ -11,6 +11,7 @@
  *
  */
 
+#include <linux/compat.h>
 #include <linux/crypto.h>
 #include <linux/module.h>
 #include <linux/kernel.h>