Merge branch 'lighten uapi/bpf.h rebuilds'

Jakub Kicinski says:

====================

Last change in the bpf headers - disentangling BPF uapi from
netdevice.h. Both linux/bpf.h and uapi/bpf.h changes should
now rebuild ~1k objects down from the original ~18k. There's
probably more that can be done but it's diminishing returns.

Split into two patches for ease of review.
====================

Signed-off-by: Alexei Starovoitov <[e-mail]>

drivers/net/ethernet/amazon/ena/ena_netdev.h

···
 #include <linux/interrupt.h>
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>
+#include <uapi/linux/bpf.h>
 
 #include "ena_com.h"
 #include "ena_eth_com.h"

drivers/net/ethernet/cavium/thunder/nicvf_queues.c

···
 #include <linux/iommu.h>
 #include <net/ip.h>
 #include <net/tso.h>
+#include <uapi/linux/bpf.h>
 
 #include "nic_reg.h"
 #include "nic.h"

drivers/net/ethernet/microsoft/mana/mana_en.c

···
 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 /* Copyright (c) 2021, Microsoft Corporation. */
 
+#include <uapi/linux/bpf.h>
+
 #include <linux/inetdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/ethtool.h>

drivers/net/ethernet/stmicro/stmmac/stmmac.h

···
 #include <linux/net_tstamp.h>
 #include <linux/reset.h>
 #include <net/page_pool.h>
+#include <uapi/linux/bpf.h>
 
 struct stmmac_resources {
 	void __iomem *addr;

drivers/net/ethernet/ti/cpsw_priv.h

···
 #ifndef DRIVERS_NET_ETHERNET_TI_CPSW_PRIV_H_
 #define DRIVERS_NET_ETHERNET_TI_CPSW_PRIV_H_
 
+#include <uapi/linux/bpf.h>
+
 #include "davinci_cpdma.h"
 
 #define CPSW_DEBUG	(NETIF_MSG_HW		| NETIF_MSG_WOL		| \

include/linux/bpf-netns.h

···
 #define _BPF_NETNS_H
 
 #include <linux/mutex.h>
+#include <net/netns/bpf.h>
 #include <uapi/linux/bpf.h>
-
-enum netns_bpf_attach_type {
-	NETNS_BPF_INVALID = -1,
-	NETNS_BPF_FLOW_DISSECTOR = 0,
-	NETNS_BPF_SK_LOOKUP,
-	MAX_NETNS_BPF_ATTACH_TYPE
-};
 
 static inline enum netns_bpf_attach_type
 to_netns_bpf_attach_type(enum bpf_attach_type attach_type)

include/net/ip6_fib.h

···
 #include <net/inetpeer.h>
 #include <net/fib_notifier.h>
 #include <linux/indirect_call_wrapper.h>
+#include <uapi/linux/bpf.h>
 
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
 #define FIB6_TABLE_HASHSZ 256

include/net/netns/bpf.h

···
 #ifndef __NETNS_BPF_H__
 #define __NETNS_BPF_H__
 
-#include <linux/bpf-netns.h>
+#include <linux/list.h>
 
 struct bpf_prog;
 struct bpf_prog_array;
+
+enum netns_bpf_attach_type {
+	NETNS_BPF_INVALID = -1,
+	NETNS_BPF_FLOW_DISSECTOR = 0,
+	NETNS_BPF_SK_LOOKUP,
+	MAX_NETNS_BPF_ATTACH_TYPE
+};
 
 struct netns_bpf {
 	/* Array of programs to run compiled from progs or links */

kernel/bpf/net_namespace.c

···
 // SPDX-License-Identifier: GPL-2.0
 
 #include <linux/bpf.h>
+#include <linux/bpf-netns.h>
 #include <linux/filter.h>
 #include <net/net_namespace.h>