From bd0ccc4afca2d6ae0029cae35c4f1d2e2ade7579 Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 15 Jan 2021 18:09:53 +0100
Subject: [PATCH] kcsan: Add missing license and copyright headers

Adds missing license and/or copyright headers for KCSAN source files.

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
 Documentation/dev-tools/kcsan.rst | 3 +++
 include/linux/kcsan-checks.h      | 6 ++++++
 include/linux/kcsan.h             | 7 +++++++
 kernel/kcsan/atomic.h             | 5 +++++
 kernel/kcsan/core.c               | 5 +++++
 kernel/kcsan/debugfs.c            | 5 +++++
 kernel/kcsan/encoding.h           | 5 +++++
 kernel/kcsan/kcsan.h              | 3 ++-
 kernel/kcsan/report.c             | 5 +++++
 kernel/kcsan/selftest.c           | 5 +++++
 10 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/Documentation/dev-tools/kcsan.rst b/Documentation/dev-tools/kcsan.rst
index be7a0b0..d85ce23 100644
--- a/Documentation/dev-tools/kcsan.rst
+++ b/Documentation/dev-tools/kcsan.rst
@@ -1,3 +1,6 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. Copyright (C) 2019, Google LLC.
+
 The Kernel Concurrency Sanitizer (KCSAN)
 ========================================
 
diff --git a/include/linux/kcsan-checks.h b/include/linux/kcsan-checks.h
index cf14840..9fd0ad8 100644
--- a/include/linux/kcsan-checks.h
+++ b/include/linux/kcsan-checks.h
@@ -1,4 +1,10 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * KCSAN access checks and modifiers. These can be used to explicitly check
+ * uninstrumented accesses, or change KCSAN checking behaviour of accesses.
+ *
+ * Copyright (C) 2019, Google LLC.
+ */
 
 #ifndef _LINUX_KCSAN_CHECKS_H
 #define _LINUX_KCSAN_CHECKS_H
diff --git a/include/linux/kcsan.h b/include/linux/kcsan.h
index 53340d8..fc266ec 100644
--- a/include/linux/kcsan.h
+++ b/include/linux/kcsan.h
@@ -1,4 +1,11 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * The Kernel Concurrency Sanitizer (KCSAN) infrastructure. Public interface and
+ * data structures to set up runtime. See kcsan-checks.h for explicit checks and
+ * modifiers. For more info please see Documentation/dev-tools/kcsan.rst.
+ *
+ * Copyright (C) 2019, Google LLC.
+ */
 
 #ifndef _LINUX_KCSAN_H
 #define _LINUX_KCSAN_H
diff --git a/kernel/kcsan/atomic.h b/kernel/kcsan/atomic.h
index 75fe701..530ae1b 100644
--- a/kernel/kcsan/atomic.h
+++ b/kernel/kcsan/atomic.h
@@ -1,4 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Rules for implicitly atomic memory accesses.
+ *
+ * Copyright (C) 2019, Google LLC.
+ */
 
 #ifndef _KERNEL_KCSAN_ATOMIC_H
 #define _KERNEL_KCSAN_ATOMIC_H
diff --git a/kernel/kcsan/core.c b/kernel/kcsan/core.c
index 23e7acb..45c821d 100644
--- a/kernel/kcsan/core.c
+++ b/kernel/kcsan/core.c
@@ -1,4 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
+/*
+ * KCSAN core runtime.
+ *
+ * Copyright (C) 2019, Google LLC.
+ */
 
 #define pr_fmt(fmt) "kcsan: " fmt
 
diff --git a/kernel/kcsan/debugfs.c b/kernel/kcsan/debugfs.c
index 209ad8d..c1dd02f 100644
--- a/kernel/kcsan/debugfs.c
+++ b/kernel/kcsan/debugfs.c
@@ -1,4 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
+/*
+ * KCSAN debugfs interface.
+ *
+ * Copyright (C) 2019, Google LLC.
+ */
 
 #define pr_fmt(fmt) "kcsan: " fmt
 
diff --git a/kernel/kcsan/encoding.h b/kernel/kcsan/encoding.h
index 7ee4055..170a2bb 100644
--- a/kernel/kcsan/encoding.h
+++ b/kernel/kcsan/encoding.h
@@ -1,4 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * KCSAN watchpoint encoding.
+ *
+ * Copyright (C) 2019, Google LLC.
+ */
 
 #ifndef _KERNEL_KCSAN_ENCODING_H
 #define _KERNEL_KCSAN_ENCODING_H
diff --git a/kernel/kcsan/kcsan.h b/kernel/kcsan/kcsan.h
index 87ccdb3..9881099 100644
--- a/kernel/kcsan/kcsan.h
+++ b/kernel/kcsan/kcsan.h
@@ -1,8 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-
 /*
  * The Kernel Concurrency Sanitizer (KCSAN) infrastructure. For more info please
  * see Documentation/dev-tools/kcsan.rst.
+ *
+ * Copyright (C) 2019, Google LLC.
  */
 
 #ifndef _KERNEL_KCSAN_KCSAN_H
diff --git a/kernel/kcsan/report.c b/kernel/kcsan/report.c
index d3bf87e..13dce3c 100644
--- a/kernel/kcsan/report.c
+++ b/kernel/kcsan/report.c
@@ -1,4 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
+/*
+ * KCSAN reporting.
+ *
+ * Copyright (C) 2019, Google LLC.
+ */
 
 #include <linux/debug_locks.h>
 #include <linux/delay.h>
diff --git a/kernel/kcsan/selftest.c b/kernel/kcsan/selftest.c
index 9014a3a..7f29cb0 100644
--- a/kernel/kcsan/selftest.c
+++ b/kernel/kcsan/selftest.c
@@ -1,4 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
+/*
+ * KCSAN short boot-time selftests.
+ *
+ * Copyright (C) 2019, Google LLC.
+ */
 
 #define pr_fmt(fmt) "kcsan: " fmt
 
-- 
2.7.4