[PATCH v3 07/39] kasan: only build init.c for software modes

Andrey Konovalov
2020-09-24T22:51:16Z

This is a preparatory commit for the upcoming addition of a new hardware
tag-based (MTE-based) KASAN mode.

The new mode won't be using shadow memory, so only build init.c that
contains shadow initialization code for software modes.

No functional changes for software modes.

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
---
Change-Id: I8d68c47345afc1dbedadde738f34a874dcae5080
---
mm/kasan/Makefile | 6 +++---
mm/kasan/init.c | 2 +-
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile
index 370d970e5ab5..7cf685bb51bd 100644
--- a/mm/kasan/Makefile
+++ b/mm/kasan/Makefile
@@ -29,6 +29,6 @@ CFLAGS_report.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_tags_report.o := $(CC_FLAGS_KASAN_RUNTIME)

-obj-$(CONFIG_KASAN) := common.o init.o report.o
-obj-$(CONFIG_KASAN_GENERIC) += generic.o generic_report.o quarantine.o
-obj-$(CONFIG_KASAN_SW_TAGS) += tags.o tags_report.o
+obj-$(CONFIG_KASAN) := common.o report.o
+obj-$(CONFIG_KASAN_GENERIC) += init.o generic.o generic_report.o quarantine.o
+obj-$(CONFIG_KASAN_SW_TAGS) += init.o tags.o tags_report.o
diff --git a/mm/kasan/init.c b/mm/kasan/init.c
index dfddd6c39fe6..1a71eaa8c5f9 100644
--- a/mm/kasan/init.c
+++ b/mm/kasan/init.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * This file contains some kasan initialization code.
+ * This file contains KASAN shadow initialization code.
*
* Copyright (c) 2015 Samsung Electronics Co., Ltd.
* Author: Andrey Ryabinin <ryabinin.a.a@gmail.com>
--
2.28.0.681.g6f77f65b4e-goog