treewide: Add SPDX license identifier for missed files

Add SPDX license identifiers to all files which:

 - Have no license information of any form

 - Have EXPORT_.*_SYMBOL_GPL inside which was used in the
   initial scan/conversion to ignore the file

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

45 files changed, 45 insertions, 0 deletions

diff --git a/kernel/bpf/tnum.c b/kernel/bpf/tnum.c
index 938d41211be7..ca52b9642943 100644
--- a/kernel/bpf/tnum.c
+++ b/kernel/bpf/tnum.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* tnum: tracked (or tristate) numbers
  *
  * A tnum tracks knowledge about the bits of a value.  Each bit can be either
diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c
index 68ca5de7ec27..88006be40ea3 100644
--- a/kernel/cgroup/cgroup-v1.c
+++ b/kernel/cgroup/cgroup-v1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include "cgroup-internal.h"
 
 #include <linux/ctype.h>
diff --git a/kernel/cgroup/rstat.c b/kernel/cgroup/rstat.c
index bb95a35e8c2d..ca19b4c8acf5 100644
--- a/kernel/cgroup/rstat.c
+++ b/kernel/cgroup/rstat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include "cgroup-internal.h"
 
 #include <linux/sched/cputime.h>
diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c
index 9ad37b9e44a7..be01a4d627c9 100644
--- a/kernel/context_tracking.c
+++ b/kernel/context_tracking.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Context tracking: Probe on high level context boundaries such as kernel
  * and userspace. This includes syscalls and exceptions entry/exit.
diff --git a/kernel/crash_dump.c b/kernel/crash_dump.c
index b64e238b553b..9c23ae074b40 100644
--- a/kernel/crash_dump.c
+++ b/kernel/crash_dump.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <linux/kernel.h>
 #include <linux/crash_dump.h>
 #include <linux/init.h>
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 6f7619c1f877..13f0cb080a4d 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Dynamic DMA mapping support.
  *
diff --git a/kernel/exit.c b/kernel/exit.c
index 8361a560cd1d..1803efb2922f 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  linux/kernel/exit.c
  *
diff --git a/kernel/fork.c b/kernel/fork.c
index b4cba953040a..b2b87d450b80 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  linux/kernel/fork.c
  *
diff --git a/kernel/freezer.c b/kernel/freezer.c
index b162b74611e4..c0738424bb43 100644
--- a/kernel/freezer.c
+++ b/kernel/freezer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * kernel/freezer.c - Function to freeze a process
  *
diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index f108a95882c6..14a625c16cb3 100644
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Detect Hung Task
  *
diff --git a/kernel/irq_work.c b/kernel/irq_work.c
index 73288914ed5e..d42acaf81886 100644
--- a/kernel/irq_work.c
+++ b/kernel/irq_work.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2010 Red Hat, Inc., Peter Zijlstra
  *
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index de6efdecc70d..0bfa10f4410c 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * jump label support
  *
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 14934afa9e68..95a260f9214b 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * kallsyms.c: in-kernel printing of symbolic oopses and stack traces.
  *
diff --git a/kernel/kthread.c b/kernel/kthread.c
index be4e8795561a..621467c33fef 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* Kernel thread helper functions.
  *   Copyright (C) 2004 IBM Corporation, Rusty Russell.
  *
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index d06190fa5082..c47788fa85f9 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * kernel/lockdep.c
  *
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index db578783dd36..0c601ae072b3 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * kernel/locking/mutex.c
  *
diff --git a/kernel/locking/percpu-rwsem.c b/kernel/locking/percpu-rwsem.c
index f17dad99eec8..b6a9cc62099a 100644
--- a/kernel/locking/percpu-rwsem.c
+++ b/kernel/locking/percpu-rwsem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <linux/atomic.h>
 #include <linux/rwsem.h>
 #include <linux/percpu.h>
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index 978d63a8261c..38fbf9fa7f1b 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * RT-Mutexes: simple blocking mutual exclusion locks with PI support
  *
diff --git a/kernel/notifier.c b/kernel/notifier.c
index bfc95b3e4235..d9f5081d578d 100644
--- a/kernel/notifier.c
+++ b/kernel/notifier.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <linux/kdebug.h>
 #include <linux/kprobes.h>
 #include <linux/export.h>
diff --git a/kernel/panic.c b/kernel/panic.c
index b4543a31a495..4d9f55bf7d38 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  linux/kernel/panic.c
  *
diff --git a/kernel/pid.c b/kernel/pid.c
index 89548d35eefb..e5cad0c7d5dd 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Generic pidhash and scalable, time-bounded PID allocator
  *
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index aa6e72fb7c08..f54bc7cb6c2d 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Pid namespaces
  *
diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index 9d22131afc1e..33e3febaba53 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * This module exposes the interface to kernel space for specifying
  * QoS dependencies.  It provides infrastructure for registration of:
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index a6e06fe38e41..1888f6a3b694 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  linux/kernel/printk.c
  *
diff --git a/kernel/profile.c b/kernel/profile.c
index 9c08a2c7cb1d..af7c94bf5fa1 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  linux/kernel/profile.c
  *  Simple profiling. Manages a direct-mapped profile hit count buffer,
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 6f357f4fc859..5710d07e67cf 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * linux/kernel/ptrace.c
  *
diff --git a/kernel/reboot.c b/kernel/reboot.c
index b9e79e8c7226..c4d472b7f1b4 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  linux/kernel/reboot.c
  *
diff --git a/kernel/resource.c b/kernel/resource.c
index 8c15f846e8ef..158f04ec1d4f 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *	linux/kernel/resource.c
  *
diff --git a/kernel/sched/clock.c b/kernel/sched/clock.c
index e3e3b979f9bd..1152259a4ca0 100644
--- a/kernel/sched/clock.c
+++ b/kernel/sched/clock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * sched_clock() for unstable CPU clocks
  *
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 102dfcf0a29a..874c427742a9 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  kernel/sched/core.c
  *
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index ba4a143bdcf3..2305ce89a26c 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Simple CPU accounting cgroup controller
  */
diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index f5516bae0c1b..80940939b733 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Generic entry points for the idle threads and
  * implementation of the idle task scheduling class.
diff --git a/kernel/sched/isolation.c b/kernel/sched/isolation.c
index 687302051a27..123ea07a3f3b 100644
--- a/kernel/sched/isolation.c
+++ b/kernel/sched/isolation.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Housekeeping management. Manage the targets for routine code that can run on
  *  any CPU: unbound workqueues, timers, kthreads and any offloadable work.
diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c
index 6eb1f8efd221..fa0f9adfb752 100644
--- a/kernel/sched/wait.c
+++ b/kernel/sched/wait.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Generic waiting primitives.
  *
diff --git a/kernel/sched/wait_bit.c b/kernel/sched/wait_bit.c
index c67c6d24adc2..45eba18a2898 100644
--- a/kernel/sched/wait_bit.c
+++ b/kernel/sched/wait_bit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * The implementation of the wait_bit*() and related waiting APIs:
  */
diff --git a/kernel/signal.c b/kernel/signal.c
index a1eb44dc9ff5..d7b9d14ac80d 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  linux/kernel/signal.c
  *
diff --git a/kernel/smp.c b/kernel/smp.c
index f4cf1b0bb3b8..d155374632eb 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Generic helpers for smp ipi calls
  *
diff --git a/kernel/smpboot.c b/kernel/smpboot.c
index c230c2dd48e1..2efe1e206167 100644
--- a/kernel/smpboot.c
+++ b/kernel/smpboot.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Common SMP CPU bringup/teardown functions
  */
diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index 27bafc1e271e..5667f1da3ede 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * kernel/stacktrace.c
  *
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 943c89178e3d..7d1008be6173 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * sysctl.c: General linux system control interface
  *
diff --git a/kernel/umh.c b/kernel/umh.c
index d937cbad903a..7f255b5a8845 100644
--- a/kernel/umh.c
+++ b/kernel/umh.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * umh - the kernel usermode helper
  */
diff --git a/kernel/up.c b/kernel/up.c
index ff536f9cc8a2..483c9962c999 100644
--- a/kernel/up.c
+++ b/kernel/up.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Uniprocessor-only support functions.  The counterpart to kernel/smp.c
  */
diff --git a/kernel/user-return-notifier.c b/kernel/user-return-notifier.c
index 9586b670a5b2..870ecd7c63ed 100644
--- a/kernel/user-return-notifier.c
+++ b/kernel/user-return-notifier.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 
 #include <linux/user-return-notifier.h>
 #include <linux/percpu.h>
diff --git a/kernel/user.c b/kernel/user.c
index 88b834f0eebc..78b17e36e705 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * The "user cache".
  *
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 9657315405de..95aea04ff722 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * kernel/workqueue.c - generic async execution with shared worker pool
  *