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a=rsa-sha256; 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; bh=84mJPr8Gpr4/Tq1Lxh29BXusyQ2UCdZanSBlBtKi1cQ=; b=HJWv3KHweBp79OX5tVzQxbDCo9Yc44ZJJi0bYGJtoSiaAzlNU9xun/smKFiJT3gLJN gVoHenc7EkOUjCNOZ6zcZ6uMWeiMwzKxGCxJsmW+Cc9/NRIkwslt9CWcNQ9WLABwhCIg D5X4Kc2eF0aWE6WlEo9VqLjMYR7trChCl0Bd7ZMtlLdf8prWJrXM6BSmdFOM0wCYpZdE 6m8rajyssDWeV56I43xuXFI05fbKBsbx3vaICflgCR2X6jF1Wn9rsn28ooKk94dC96aV u9ILST3X+1wndXQcN0hH5oPYkIKQwRQ0lNsIOZovq5EGuhjUXotNBbip/b83IaHFwFaC KdMw== X-Gm-Message-State: AOAM530MwYLi56mcxsz1dRLG1op9o6OZbZ3FMu5bNIV8yCH8TL+H63ZN hQecbmbzm3IIkI0Sld23Gf4KQOC6Nzr3dX4vqWXKNg== X-Google-Smtp-Source: ABdhPJy4gRGHqzM1DVK6jgclHTM6k7zcc+JlhOQZI8hqLajfveJ0hHLmlzeGrvovDPdwwOPiC8qlJIeDpJffpp94I+g= X-Received: by 2002:a17:90a:81:: with SMTP id a1mr13066299pja.136.1600440996199; Fri, 18 Sep 2020 07:56:36 -0700 (PDT) MIME-Version: 1.0 References: <272b331db9919432cd6467a0bd5ce73ffc46fc97.1597425745.git.andreyknvl@google.com> <20200918145541.GA2458536@elver.google.com> In-Reply-To: <20200918145541.GA2458536@elver.google.com> From: Andrey Konovalov Date: Fri, 18 Sep 2020 16:56:25 +0200 Message-ID: Subject: Re: [PATCH 03/35] kasan: shadow declarations only for software modes To: Marco Elver Cc: Dmitry Vyukov , Vincenzo Frascino , Catalin Marinas , kasan-dev , Andrey Ryabinin , Alexander Potapenko , Evgenii Stepanov , Elena Petrova , Branislav Rankov , Kevin Brodsky , Will Deacon , Andrew Morton , Linux ARM , Linux Memory Management List , LKML Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 18, 2020 at 4:55 PM Marco Elver wrote: > > On Fri, Aug 14, 2020 at 07:26PM +0200, Andrey Konovalov wrote: > > This is a preparatory commit for the upcoming addition of a new hardware > > tag-based (MTE-based) KASAN mode. > > > > Group shadow-related KASAN function declarations and only define them > > for the two existing software modes. > > > > No functional changes for software modes. > > > > Signed-off-by: Andrey Konovalov > > --- > > include/linux/kasan.h | 44 ++++++++++++++++++++++++++----------------- > > 1 file changed, 27 insertions(+), 17 deletions(-) > > > > diff --git a/include/linux/kasan.h b/include/linux/kasan.h > > index bd5b4965a269..44a9aae44138 100644 > > --- a/include/linux/kasan.h > > +++ b/include/linux/kasan.h > [...] > > +static inline int kasan_add_zero_shadow(void *start, unsigned long size) > > +{ > > + return 0; > > +} > > +static inline void kasan_remove_zero_shadow(void *start, > > + unsigned long size) > > +{} > > Readability suggestion (latest checkpatch.pl allows up to 100 cols): > > -static inline void kasan_remove_zero_shadow(void *start, > - unsigned long size) > -{} > +static inline void kasan_remove_zero_shadow(void *start, unsigned long size) {} Will do in v3, thanks!