Merge tag 'v5.2-rc2' into patchwork

Merge back from upstream into media tree, as there are some
patches merged upstream that has pontential of causing
conflicts (one actually rised a conflict already).

Linux 5.2-rc2

* tag 'v5.2-rc2': (377 commits)
  Linux 5.2-rc2
  random: fix soft lockup when trying to read from an uninitialized blocking pool
  tracing: Silence GCC 9 array bounds warning
  ext4: fix dcache lookup of !casefolded directories
  locking/lock_events: Use this_cpu_add() when necessary
  KVM: x86: fix return value for reserved EFER
  tools/kvm_stat: fix fields filter for child events
  KVM: selftests: Wrap vcpu_nested_state_get/set functions with x86 guard
  kvm: selftests: aarch64: compile with warnings on
  kvm: selftests: aarch64: fix default vm mode
  kvm: selftests: aarch64: dirty_log_test: fix unaligned memslot size
  KVM: s390: fix memory slot handling for KVM_SET_USER_MEMORY_REGION
  KVM: x86/pmu: do not mask the value that is written to fixed PMUs
  KVM: x86/pmu: mask the result of rdpmc according to the width of the counters
  x86/kvm/pmu: Set AMD's virt PMU version to 1
  KVM: x86: do not spam dmesg with VMCS/VMCB dumps
  kvm: Check irqchip mode before assign irqfd
  kvm: svm/avic: fix off-by-one in checking host APIC ID
  KVM: selftests: do not blindly clobber registers in guest asm
  KVM: selftests: Remove duplicated TEST_ASSERT in hyperv_cpuid.c
  ...

50 files changed, 56 insertions, 41 deletions

diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 8108e97d4285..974de4d20f25 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # IP configuration
 #
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index c01fa791260d..9c3afd550612 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #define pr_fmt(fmt) "IPsec: " fmt
 
 #include <crypto/algapi.h>
diff --git a/net/ipv4/bpfilter/Makefile b/net/ipv4/bpfilter/Makefile
index e9e42f99725e..00af5305e05a 100644
--- a/net/ipv4/bpfilter/Makefile
+++ b/net/ipv4/bpfilter/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_BPFILTER) += sockopt.o
diff --git a/net/ipv4/bpfilter/sockopt.c b/net/ipv4/bpfilter/sockopt.c
index 15427163a041..0480918bfc7c 100644
--- a/net/ipv4/bpfilter/sockopt.c
+++ b/net/ipv4/bpfilter/sockopt.c
@@ -30,13 +30,11 @@ static int bpfilter_mbox_request(struct sock *sk, int optname,
 	mutex_lock(&bpfilter_ops.lock);
 	if (!bpfilter_ops.sockopt) {
 		mutex_unlock(&bpfilter_ops.lock);
-		err = request_module("bpfilter");
+		request_module("bpfilter");
 		mutex_lock(&bpfilter_ops.lock);
 
-		if (err)
-			goto out;
 		if (!bpfilter_ops.sockopt) {
-			err = -ECHILD;
+			err = -ENOPROTOOPT;
 			goto out;
 		}
 	}
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index f0165c5f376b..376882215919 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * CIPSO - Commercial IP Security Option
  *
@@ -14,25 +15,10 @@
  *   http://www.itl.nist.gov/fipspubs/fip188.htm
  *
  * Author: Paul Moore <paul.moore@hp.com>
- *
  */
 
 /*
  * (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008
- *
- * This program is free software;  you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY;  without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program;  if not, see <http://www.gnu.org/licenses/>.
- *
  */
 
 #include <linux/init.h>
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index fb065a8937ea..b9ae95576084 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #define pr_fmt(fmt) "IPsec: " fmt
 
 #include <crypto/aead.h>
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index ca95051317ed..30fa771d382a 100644
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/socket.h>
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index 88c5069b5d20..c411c87ae865 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index ac880beda8a7..bfd0ca554977 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/net/ipv4/metrics.c b/net/ipv4/metrics.c
index ca9a5fefdefa..3205d5f7c8c9 100644
--- a/net/ipv4/metrics.c
+++ b/net/ipv4/metrics.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <linux/netlink.h>
 #include <linux/rtnetlink.h>
 #include <linux/types.h>
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index 1412b029f37f..3e6494269501 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # IP netfilter configuration
 #
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 2dc83de53f94..214154b47d56 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Packet matching code for ARP packets.
  *
diff --git a/net/ipv4/netfilter/arpt_mangle.c b/net/ipv4/netfilter/arpt_mangle.c
index a5e52a9f0a12..87ca2c42359b 100644
--- a/net/ipv4/netfilter/arpt_mangle.c
+++ b/net/ipv4/netfilter/arpt_mangle.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* module that allows mangling of the arp payload */
 #include <linux/module.h>
 #include <linux/netfilter.h>
diff --git a/net/ipv4/netfilter/arptable_filter.c b/net/ipv4/netfilter/arptable_filter.c
index 8f8713b4388f..c216b9ad3bb2 100644
--- a/net/ipv4/netfilter/arptable_filter.c
+++ b/net/ipv4/netfilter/arptable_filter.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Filtering ARP tables module.
  *
diff --git a/net/ipv4/netfilter/iptable_raw.c b/net/ipv4/netfilter/iptable_raw.c
index 960625aabf04..6eefde5bc468 100644
--- a/net/ipv4/netfilter/iptable_raw.c
+++ b/net/ipv4/netfilter/iptable_raw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * 'raw' table, which is the very first hooked in at PRE_ROUTING and LOCAL_OUT .
  *
diff --git a/net/ipv4/netfilter/nf_dup_ipv4.c b/net/ipv4/netfilter/nf_dup_ipv4.c
index 39895b9ddeb9..af3fbf76dbd3 100644
--- a/net/ipv4/netfilter/nf_dup_ipv4.c
+++ b/net/ipv4/netfilter/nf_dup_ipv4.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * (C) 2007 by Sebastian Claßen <sebastian.classen@freenet.ag>
  * (C) 2007-2010 by Jan Engelhardt <jengelh@medozas.de>
  *
  * Extracted from xt_TEE.c
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 or later, as
- * published by the Free Software Foundation.
  */
 #include <linux/ip.h>
 #include <linux/module.h>
diff --git a/net/ipv4/netfilter/nf_flow_table_ipv4.c b/net/ipv4/netfilter/nf_flow_table_ipv4.c
index e1e56d7123d2..012c4047c788 100644
--- a/net/ipv4/netfilter/nf_flow_table_ipv4.c
+++ b/net/ipv4/netfilter/nf_flow_table_ipv4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/module.h>
diff --git a/net/ipv4/netfilter/nf_nat_pptp.c b/net/ipv4/netfilter/nf_nat_pptp.c
index e17b4ee7604c..b2aeb7bf5dac 100644
--- a/net/ipv4/netfilter/nf_nat_pptp.c
+++ b/net/ipv4/netfilter/nf_nat_pptp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * nf_nat_pptp.c
  *
diff --git a/net/ipv4/netfilter/nf_nat_snmp_basic_main.c b/net/ipv4/netfilter/nf_nat_snmp_basic_main.c
index 0a8a60c1bf9a..657d2dcec3cc 100644
--- a/net/ipv4/netfilter/nf_nat_snmp_basic_main.c
+++ b/net/ipv4/netfilter/nf_nat_snmp_basic_main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * nf_nat_snmp_basic.c
  *
@@ -25,17 +26,6 @@
  *
  * Copyright (c) 2000 RP Internet (www.rpi.net.au).
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- *
  * Author: James Morris <jmorris@intercode.com.au>
  *
  * Copyright (c) 2006-2010 Patrick McHardy <kaber@trash.net>
diff --git a/net/ipv4/netlink.c b/net/ipv4/netlink.c
index d8e3a1fb8e82..b920e1bdcf58 100644
--- a/net/ipv4/netlink.c
+++ b/net/ipv4/netlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <linux/netlink.h>
 #include <linux/rtnetlink.h>
 #include <linux/types.h>
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 7ccb5f87f70b..834be7daeb32 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -1113,7 +1113,7 @@ static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
 	__u16 srcp = ntohs(inet->inet_sport);
 
 	seq_printf(f, "%5d: %08X:%04X %08X:%04X"
-		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d",
+		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %u",
 		bucket, src, srcp, dest, destp, sp->sk_state,
 		sk_wmem_alloc_get(sp),
 		sk_rmem_alloc_get(sp),
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index dc91c27bb788..0e482f07b37f 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -1076,7 +1076,7 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
 	      srcp  = inet->inet_num;
 
 	seq_printf(seq, "%4d: %08X:%04X %08X:%04X"
-		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d\n",
+		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %u\n",
 		i, src, srcp, dest, destp, sp->sk_state,
 		sk_wmem_alloc_get(sp),
 		sk_rmem_alloc_get(sp),
diff --git a/net/ipv4/raw_diag.c b/net/ipv4/raw_diag.c
index c200065ef9a5..899e34ceb560 100644
--- a/net/ipv4/raw_diag.c
+++ b/net/ipv4/raw_diag.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <linux/module.h>
 
 #include <linux/inet_diag.h>
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 1fa15beb8380..53d61ca3ac4b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -855,7 +855,7 @@ struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp,
 
 	if (likely(!size)) {
 		skb = sk->sk_tx_skb_cache;
-		if (skb && !skb_cloned(skb)) {
+		if (skb) {
 			skb->truesize = SKB_TRUESIZE(skb_end_offset(skb));
 			sk->sk_tx_skb_cache = NULL;
 			pskb_trim(skb, 0);
diff --git a/net/ipv4/tcp_bic.c b/net/ipv4/tcp_bic.c
index fc3614377413..645cc3009e64 100644
--- a/net/ipv4/tcp_bic.c
+++ b/net/ipv4/tcp_bic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Binary Increase Congestion control for TCP
  * Home page:
diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
index 1bb7321a256d..3d1e15401384 100644
--- a/net/ipv4/tcp_bpf.c
+++ b/net/ipv4/tcp_bpf.c
@@ -27,7 +27,10 @@ static int tcp_bpf_wait_data(struct sock *sk, struct sk_psock *psock,
 			     int flags, long timeo, int *err)
 {
 	DEFINE_WAIT_FUNC(wait, woken_wake_function);
-	int ret;
+	int ret = 0;
+
+	if (!timeo)
+		return ret;
 
 	add_wait_queue(sk_sleep(sk), &wait);
 	sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk);
@@ -528,8 +531,6 @@ static void tcp_bpf_remove(struct sock *sk, struct sk_psock *psock)
 {
 	struct sk_psock_link *link;
 
-	sk_psock_cork_free(psock);
-	__sk_psock_purge_ingress_msg(psock);
 	while ((link = sk_psock_link_pop(psock))) {
 		sk_psock_unlink(sk, link);
 		sk_psock_free_link(link);
diff --git a/net/ipv4/tcp_cdg.c b/net/ipv4/tcp_cdg.c
index 37eebd910396..709d23801823 100644
--- a/net/ipv4/tcp_cdg.c
+++ b/net/ipv4/tcp_cdg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * CAIA Delay-Gradient (CDG) congestion control
  *
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index bc6c02f16243..e1862b64a90f 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Pluggable TCP congestion control support and newReno
  * congestion control.
diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index 78bfadfcf342..1b3d032a4df2 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * TCP CUBIC: Binary Increase Congestion control for TCP v2.3
  * Home page:
diff --git a/net/ipv4/tcp_highspeed.c b/net/ipv4/tcp_highspeed.c
index d1c33c91eadc..bfdfbb972c57 100644
--- a/net/ipv4/tcp_highspeed.c
+++ b/net/ipv4/tcp_highspeed.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Sally Floyd's High Speed TCP (RFC 3649) congestion control
  *
diff --git a/net/ipv4/tcp_htcp.c b/net/ipv4/tcp_htcp.c
index 082d479462fa..88e1f011afe0 100644
--- a/net/ipv4/tcp_htcp.c
+++ b/net/ipv4/tcp_htcp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * H-TCP congestion control. The algorithm is detailed in:
  * R.N.Shorten, D.J.Leith:
diff --git a/net/ipv4/tcp_hybla.c b/net/ipv4/tcp_hybla.c
index 0f7175c3338e..be39327e04e6 100644
--- a/net/ipv4/tcp_hybla.c
+++ b/net/ipv4/tcp_hybla.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * TCP HYBLA
  *
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index faddf4f9a707..00e54873213e 100644
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * TCP Illinois congestion control.
  * Home page:
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 20f6fac5882e..c61edd023b35 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -6024,6 +6024,9 @@ reset_and_undo:
 static void tcp_rcv_synrecv_state_fastopen(struct sock *sk)
 {
 	tcp_try_undo_loss(sk, false);
+
+	/* Reset rtx states to prevent spurious retransmits_timed_out() */
+	tcp_sk(sk)->retrans_stamp = 0;
 	inet_csk(sk)->icsk_retransmits = 0;
 
 	/* Once we leave TCP_SYN_RECV or TCP_FIN_WAIT_1,
diff --git a/net/ipv4/tcp_lp.c b/net/ipv4/tcp_lp.c
index ae10ed64fe13..8c643a4ffad1 100644
--- a/net/ipv4/tcp_lp.c
+++ b/net/ipv4/tcp_lp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * TCP Low Priority (TCP-LP)
  *
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 9c2a0d36fb20..7c35731816e2 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/net/ipv4/tcp_nv.c b/net/ipv4/tcp_nv.c
index 764298e52577..95db7a11ba2a 100644
--- a/net/ipv4/tcp_nv.c
+++ b/net/ipv4/tcp_nv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * TCP NV: TCP with Congestion Avoidance
  *
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 0c4ed66dc1bf..f429e856e263 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/net/ipv4/tcp_rate.c b/net/ipv4/tcp_rate.c
index baed2186c7c6..0de693565963 100644
--- a/net/ipv4/tcp_rate.c
+++ b/net/ipv4/tcp_rate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <net/tcp.h>
 
 /* The bandwidth estimator estimates the rate at which the network
diff --git a/net/ipv4/tcp_scalable.c b/net/ipv4/tcp_scalable.c
index addc122f8818..471571e1ab26 100644
--- a/net/ipv4/tcp_scalable.c
+++ b/net/ipv4/tcp_scalable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* Tom Kelly's Scalable TCP
  *
  * See http://www.deneholme.net/tom/scalable/
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 2ac23da42dd2..5bad937ce779 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/net/ipv4/tcp_ulp.c b/net/ipv4/tcp_ulp.c
index 95df7f7f6328..3d8a1d835471 100644
--- a/net/ipv4/tcp_ulp.c
+++ b/net/ipv4/tcp_ulp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Pluggable TCP upper layer protocol support.
  *
diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c
index ee113ff15fd0..3f51e781562a 100644
--- a/net/ipv4/tcp_vegas.c
+++ b/net/ipv4/tcp_vegas.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * TCP Vegas congestion control
  *
diff --git a/net/ipv4/tcp_veno.c b/net/ipv4/tcp_veno.c
index 6fcf482d611b..3b36bb1a0dda 100644
--- a/net/ipv4/tcp_veno.c
+++ b/net/ipv4/tcp_veno.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * TCP Veno congestion control
  *
diff --git a/net/ipv4/tcp_westwood.c b/net/ipv4/tcp_westwood.c
index bec9cafbe3f9..b2e05c4cea00 100644
--- a/net/ipv4/tcp_westwood.c
+++ b/net/ipv4/tcp_westwood.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * TCP Westwood+: end-to-end bandwidth estimation for TCP
  *
diff --git a/net/ipv4/tcp_yeah.c b/net/ipv4/tcp_yeah.c
index 96e829b2e2fc..e00570dd0a69 100644
--- a/net/ipv4/tcp_yeah.c
+++ b/net/ipv4/tcp_yeah.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *
  *   YeAH TCP
diff --git a/net/ipv4/tunnel4.c b/net/ipv4/tunnel4.c
index 33bf8e9c8663..c4b2ccbeba04 100644
--- a/net/ipv4/tunnel4.c
+++ b/net/ipv4/tunnel4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* tunnel4.c: Generic IP tunnel transformer.
  *
  * Copyright (C) 2003 David S. Miller (davem@redhat.com)
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 3c58ba02af7d..8fb250ed53d4 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2883,7 +2883,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
 	__u16 srcp	  = ntohs(inet->inet_sport);
 
 	seq_printf(f, "%5d: %08X:%04X %08X:%04X"
-		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d",
+		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %u",
 		bucket, src, srcp, dest, destp, sp->sk_state,
 		sk_wmem_alloc_get(sp),
 		udp_rqueue_get(sp),
diff --git a/net/ipv4/udp_tunnel.c b/net/ipv4/udp_tunnel.c
index e93cc0379201..150e6f0fdbf5 100644
--- a/net/ipv4/udp_tunnel.c
+++ b/net/ipv4/udp_tunnel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/socket.h>
diff --git a/net/ipv4/xfrm4_tunnel.c b/net/ipv4/xfrm4_tunnel.c
index 06347dbd32c1..5d00e54cd319 100644
--- a/net/ipv4/xfrm4_tunnel.c
+++ b/net/ipv4/xfrm4_tunnel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* xfrm4_tunnel.c: Generic IP tunnel transformer.
  *
  * Copyright (C) 2003 David S. Miller (davem@redhat.com)