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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=FeLdvrmRrEjRDvLDp8IMeU8yTFWoBJ46ycNhebnMFYM=; b=GT3zqEsg+UavwluNGz5EpiuPRRuGMTZJ0NSMsTtTii/0MHc+tBUjl7wxiOMYAt+QlT pyvEzPBDOW5tbf0nPs1j2uI4nK3bQJhd1eua/otuopIRLd2aupcTOqkwxbsbgE9QpURW OxHczsGhWmvkfGh/uR3a6D2mI3CBaylXML0Mf2/MMo/By1UnID23fEbmBVoADE2pp3eG 36Oxu92sGEE7+m683UhHwfiCxHX8JRLE9f1qOvG2mP4fO9c5zZwgMc/jLfWPIp8+BPlL APtYdkDVpilB2bW1wTALaQaMsMaALqlQ7c4YbmIxQ7QVrAmHeWK0ZzCrYusoSx5Eg8hG F6Dw== X-Gm-Message-State: AOAM533r8YlA45A/9kkvlVZa/2U4kj9SEl6Snw+SLtup99XpEXGTeg0I 0ltshbLDelPMPv4iT1DWtHKJH8o6/gNJlFboTgnWXw== X-Google-Smtp-Source: ABdhPJxpDAhEXXXNzU+k6JEzSlS5oCCC+YHdJ+RToQDBqDvmlBKjtro0xxou2/hL4BdFQAB3kvq6JYo3NiocZoxZbww= X-Received: by 2002:a17:90b:140c:: with SMTP id jo12mr1907027pjb.41.1601589561599; Thu, 01 Oct 2020 14:59:21 -0700 (PDT) MIME-Version: 1.0 References: <08b7f7fe6b20f6477fa2a447a931b3bbb1ad3121.1600987622.git.andreyknvl@google.com> <20201001175841.GS4162920@elver.google.com> In-Reply-To: <20201001175841.GS4162920@elver.google.com> From: Andrey Konovalov Date: Thu, 1 Oct 2020 23:59:10 +0200 Message-ID: Subject: Re: [PATCH v3 32/39] kasan: define KASAN_GRANULE_SIZE for HW_TAGS To: Marco Elver X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201001_175923_952174_CFD9B354 X-CRM114-Status: GOOD ( 18.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux ARM , Branislav Rankov , Elena Petrova , Catalin Marinas , Kevin Brodsky , Will Deacon , LKML , kasan-dev , Linux Memory Management List , Alexander Potapenko , Evgenii Stepanov , Andrey Ryabinin , Andrew Morton , Vincenzo Frascino , Dmitry Vyukov Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Oct 1, 2020 at 7:58 PM wrote: > > On Fri, Sep 25, 2020 at 12:50AM +0200, Andrey Konovalov wrote: > > Hardware tag-based KASAN has granules of MTE_GRANULE_SIZE. Define > > KASAN_GRANULE_SIZE to MTE_GRANULE_SIZE for CONFIG_KASAN_HW_TAGS. > > > > Signed-off-by: Andrey Konovalov > > Signed-off-by: Vincenzo Frascino > > Reviewed-by: Marco Elver > > > --- > > Change-Id: I5d1117e6a991cbca00d2cfb4ba66e8ae2d8f513a > > --- > > mm/kasan/kasan.h | 6 ++++++ > > 1 file changed, 6 insertions(+) > > > > diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h > > index 9c73f324e3ce..bd51ab72c002 100644 > > --- a/mm/kasan/kasan.h > > +++ b/mm/kasan/kasan.h > > @@ -5,7 +5,13 @@ > > #include > > #include > > > > +#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) > > #define KASAN_GRANULE_SIZE (1UL << KASAN_SHADOW_SCALE_SHIFT) > > +#else > > +#include > > +#define KASAN_GRANULE_SIZE (MTE_GRANULE_SIZE) > > Why braces? Shouldn't MTE_GRANULE_SIZE already have braces? Will fix in v4, thanks! > > > +#endif > > + > > #define KASAN_GRANULE_MASK (KASAN_GRANULE_SIZE - 1) > > #define KASAN_GRANULE_PAGE (KASAN_GRANULE_SIZE << PAGE_SHIFT) > > > > -- > > 2.28.0.681.g6f77f65b4e-goog > > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel