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SubjectRe: [PATCH v3 07/39] kasan: only build init.c for software modes
On Fri, Sep 25, 2020 at 12:50AM +0200, Andrey Konovalov wrote:
> 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>

Reviewed-by: Marco Elver <elver@google.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
>

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