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c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=abCIw+qBhh3O/GScLoUzmdV0ZiAv0OKYISMWyJ4sHI4=; b=dzhrf5EiWXLBDZVoX5JfltLRa6FoeLb6yRS2oMTbBT5+7A9TlMt4T9f9OJVY70/ddI WXihpy9/a1aghrQgRsVyGHvctGOzQVZYhmFCkqwl/uPDX5Dlrve4V7fTWxnu8oJTZfKa CfImEyknJM2/aV9KtpxrOVcWLRe5RJeEywbRWJI7IAflUZoYacOQmGZO0e8xPDvXCEOj YjTxL1GHu72bigkkuOPKO9EYWGithbuacopusIEsmiM2x1RAPPKmgJhURGhC+BtukjH6 VfzWG3hALRLEBM8vvkkPukVilNX6p/sxDUcaszoeFspPyBBcgyrfKob7E3zaZWzn/e29 pAOA== X-Gm-Message-State: AOAM532G8wugAfNS7W0GTBYtiLZn0e0W+RnTY8j6+RVfMo158rTLgedZ gU55+gBIMZKHJVRPzvLcLGFJu/kvkGIeDVaOCYkkzA== X-Google-Smtp-Source: ABdhPJwzYc+pIoGR4ZubW9Q4+Ha7fE4IW8pakoJT+AEbfB6XEZOA+xub6Z121AEU6QI1xHbYigGHmJyHFSuw4ViNuu0= X-Received: by 2002:a05:620a:211b:: with SMTP id l27mr1923525qkl.352.1605102424991; Wed, 11 Nov 2020 05:47:04 -0800 (PST) MIME-Version: 1.0 References: <8f1316319d050f2019e03dac28a37ce1dd5206db.1605046192.git.andreyknvl@google.com> In-Reply-To: <8f1316319d050f2019e03dac28a37ce1dd5206db.1605046192.git.andreyknvl@google.com> From: Alexander Potapenko Date: Wed, 11 Nov 2020 14:46:53 +0100 Message-ID: Subject: Re: [PATCH v9 08/44] kasan: only build init.c for software modes To: Andrey Konovalov Cc: Catalin Marinas , Will Deacon , Vincenzo Frascino , Dmitry Vyukov , Andrey Ryabinin , Marco Elver , Evgenii Stepanov , Branislav Rankov , Kevin Brodsky , Andrew Morton , kasan-dev , Linux ARM , Linux Memory Management List , LKML Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000755, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Nov 10, 2020 at 11:11 PM Andrey Konovalov w= rote: > > 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 > Signed-off-by: Vincenzo Frascino > Reviewed-by: Marco Elver Reviewed-by: Alexander Potapenko > --- > 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 :=3D $(CC_FLAGS_KASAN_RUNTIME) > CFLAGS_tags.o :=3D $(CC_FLAGS_KASAN_RUNTIME) > CFLAGS_tags_report.o :=3D $(CC_FLAGS_KASAN_RUNTIME) > > -obj-$(CONFIG_KASAN) :=3D common.o init.o report.o > -obj-$(CONFIG_KASAN_GENERIC) +=3D generic.o generic_report.o quarantine.o > -obj-$(CONFIG_KASAN_SW_TAGS) +=3D tags.o tags_report.o > +obj-$(CONFIG_KASAN) :=3D common.o report.o > +obj-$(CONFIG_KASAN_GENERIC) +=3D init.o generic.o generic_report.o quara= ntine.o > +obj-$(CONFIG_KASAN_SW_TAGS) +=3D 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 > -- > 2.29.2.222.g5d2a92d10f8-goog > --=20 Alexander Potapenko Software Engineer Google Germany GmbH Erika-Mann-Stra=C3=9Fe, 33 80636 M=C3=BCnchen Gesch=C3=A4ftsf=C3=BChrer: Paul Manicle, Halimah DeLaine Prado Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg