From 0c26e79c37586c3e5f37ff237985782dae054b57 Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 22 Jan 2021 09:18:34 +0000
Subject: [PATCH] FROMGIT: kfence: add missing copyright and description
 headers

Add missing copyright and description headers to KFENCE source files.

Link: https://lkml.kernel.org/r/20210118092159.145934-1-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Bug: 177201466
(cherry picked from commit b86d1ed1155ce1d2420057bfbdcc62b9fd53c1d6
    https://github.com/hnaz/linux-mm v5.11-rc4-mmots-2021-01-21-20-10)
Test: CONFIG_KFENCE_KUNIT_TEST=y passes on Cuttlefish
Signed-off-by: Alexander Potapenko <glider@google.com>
Change-Id: I95eb6756baaa0d8ca1dbc656708667372cff546d
---
 include/linux/kfence.h | 6 ++++++
 mm/kfence/core.c       | 5 +++++
 mm/kfence/kfence.h     | 6 ++++++
 mm/kfence/report.c     | 5 +++++
 4 files changed, 22 insertions(+)

diff --git a/include/linux/kfence.h b/include/linux/kfence.h
index ed4affc4f6ac..81f3911cb298 100644
--- a/include/linux/kfence.h
+++ b/include/linux/kfence.h
@@ -1,4 +1,10 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Kernel Electric-Fence (KFENCE). Public interface for allocator and fault
+ * handler integration. For more info see Documentation/dev-tools/kfence.rst.
+ *
+ * Copyright (C) 2020, Google LLC.
+ */
 
 #ifndef _LINUX_KFENCE_H
 #define _LINUX_KFENCE_H
diff --git a/mm/kfence/core.c b/mm/kfence/core.c
index a3e1cbae464b..9ff74bcf23f2 100644
--- a/mm/kfence/core.c
+++ b/mm/kfence/core.c
@@ -1,4 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
+/*
+ * KFENCE guarded object allocator and fault handling.
+ *
+ * Copyright (C) 2020, Google LLC.
+ */
 
 #define pr_fmt(fmt) "kfence: " fmt
 
diff --git a/mm/kfence/kfence.h b/mm/kfence/kfence.h
index f115aabc2052..1014060f9707 100644
--- a/mm/kfence/kfence.h
+++ b/mm/kfence/kfence.h
@@ -1,4 +1,10 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Kernel Electric-Fence (KFENCE). For more info please see
+ * Documentation/dev-tools/kfence.rst.
+ *
+ * Copyright (C) 2020, Google LLC.
+ */
 
 #ifndef MM_KFENCE_KFENCE_H
 #define MM_KFENCE_KFENCE_H
diff --git a/mm/kfence/report.c b/mm/kfence/report.c
index 0fdaa3ddf1b4..64f27c8d46a3 100644
--- a/mm/kfence/report.c
+++ b/mm/kfence/report.c
@@ -1,4 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
+/*
+ * KFENCE reporting.
+ *
+ * Copyright (C) 2020, Google LLC.
+ */
 
 #include <stdarg.h>