From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 66780C4727E for ; Thu, 1 Oct 2020 18:00:06 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F221C20759 for ; Thu, 1 Oct 2020 18:00:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="RziB/lAM"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=google.com header.i=@google.com header.b="od955wzc" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F221C20759 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=M1D8hhEVSorVpWH+ENedcwLiKIaT0hO7enUw9BF61to=; b=RziB/lAMTP4lPmwL7Be8ixRad MAgXfFYoRsEuZExM6vF3WBmgATQnMm9qjQfwd6ykZJFQJ/WOUylBb7pX4b789Zj2ojxdspwEFixiv MEz0y0JRKWTT39COmhAJlzrZIMnFbYIXo6stJtE8OdQCvhkYFU3Bz9omSJ/jJtqZYb6PTDJFS/c36 TF7w6hD9d1eKBUclZWXR7NwxeCKl5vPw2j0hapH9e6PhxUwqD3C6Oi+pv/EpyNl2vlRk99AXKrIwE jyqvDiJ+oUBOmsR8dsM5C0/QpKhdiFlln8Dsl/MDa2NoD68h8sX+6V3QQFpVPTbeePOLo9x8NWsWk +Tbb+Q9dA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kO2qx-0008Fn-9G; Thu, 01 Oct 2020 17:58:51 +0000 Received: from mail-wr1-x441.google.com ([2a00:1450:4864:20::441]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kO2qu-0008F2-Nx for linux-arm-kernel@lists.infradead.org; Thu, 01 Oct 2020 17:58:49 +0000 Received: by mail-wr1-x441.google.com with SMTP id j2so6840248wrx.7 for ; Thu, 01 Oct 2020 10:58:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=Z3LAespRKggBAzZJgRL/XlMKflXl6US5qlulvNZ+CWs=; b=od955wzcgv89aGAe3soOsbcrwpahgFEVliBe121WeV3EN8WamikoGFD/WC/565svPp tcMmvBhiE9klmcTllGYcDPAyjf9XgFRPsmw+Z4A/fl93I6/TMLjcsV9dGVFfpEEYcaxi 42Ml7WCcIj4txqieI4wB0XVkiRqGrSAJHa2vXeEKIrbZVYuaqSgZrImzOkZiXU5MI4bR xEJdQ+LAY7UY3lklhF1a0xPajJN6QuGo30gbAxF5Z3XRs/0KkJlRBi9LC/z4m0C6iRNb VPPYimks4Hl44Rodptz8syBtu7copDzNunz2XOvfKGnut7dwL5dvs52+Gf+mDRHpMtdX vKQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=Z3LAespRKggBAzZJgRL/XlMKflXl6US5qlulvNZ+CWs=; b=f2i5r7aKsaoP/8DNabvI9sWhp39hQRm6S/YPDMZV82rqHXM2SFr68m+VK7H7KEsi3k rl97x73zsnuizElOX6nw91xEo/sBieKvsKbMSVEhwFe1A0/g/mVTg5qYIwWFlJY7/pDx 08QCir1j1wBzp3+eeqEzHQOrF8o2o1ekFL4OalosP570FM8+ml2mdQM5Ki1w315l84ye 8X+e657aGh65Laa9/hjdYxuwAv060S1wx9A5PdTIZxm8o4p4wBVN3FP4719nmVe1wRg+ X/+7rvknvgLEdQ8SAKQj/MKRt/lUTsSkbHl4ibaUrTvdEbnQKDS6keLkvDuQzu+m+/vS Ah2g== X-Gm-Message-State: AOAM530AD9eMJ7TijP6+PJL3+QLM6SwjBN6C/FWipYVYG4z0oSG78D9g iCPB96XlN0TRV5g1/Oe/DTVWHQ== X-Google-Smtp-Source: ABdhPJybU2DR+386wgAvXpbetk9a0PADxBixIkZLW7YdX/4xa9aehfk2/lI5WeXpQfsw0wlb/FN+ng== X-Received: by 2002:adf:f34a:: with SMTP id e10mr10271328wrp.91.1601575127768; Thu, 01 Oct 2020 10:58:47 -0700 (PDT) Received: from elver.google.com ([100.105.32.75]) by smtp.gmail.com with ESMTPSA id q12sm10203515wrs.48.2020.10.01.10.58.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Oct 2020 10:58:46 -0700 (PDT) Date: Thu, 1 Oct 2020 19:58:41 +0200 From: elver@google.com To: Andrey Konovalov Subject: Re: [PATCH v3 32/39] kasan: define KASAN_GRANULE_SIZE for HW_TAGS Message-ID: <20201001175841.GS4162920@elver.google.com> References: <08b7f7fe6b20f6477fa2a447a931b3bbb1ad3121.1600987622.git.andreyknvl@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <08b7f7fe6b20f6477fa2a447a931b3bbb1ad3121.1600987622.git.andreyknvl@google.com> User-Agent: Mutt/1.14.5 (2020-06-23) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201001_135848_823374_7FE19DAB X-CRM114-Status: GOOD ( 17.62 ) 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-kernel@lists.infradead.org, Branislav Rankov , Elena Petrova , Catalin Marinas , Kevin Brodsky , Will Deacon , linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, linux-mm@kvack.org, 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 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? > +#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