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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3A052C4332F for ; Thu, 30 Sep 2021 15:46:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1902D613A7 for ; Thu, 30 Sep 2021 15:46:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345184AbhI3Prz (ORCPT ); Thu, 30 Sep 2021 11:47:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54254 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345765AbhI3Prz (ORCPT ); Thu, 30 Sep 2021 11:47:55 -0400 Received: from mail-qt1-x82b.google.com (mail-qt1-x82b.google.com [IPv6:2607:f8b0:4864:20::82b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6E940C06176D for ; Thu, 30 Sep 2021 08:46:12 -0700 (PDT) Received: by mail-qt1-x82b.google.com with SMTP id e16so6109438qts.4 for ; Thu, 30 Sep 2021 08:46:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=8d6xo5L9QevHc/0Sduv9NQkae1fLgboqRLN/cOlHL94=; b=iR/rfVgiWHq5rw4NLK5OT9v5lYhcLGBGwNqvqBTHa8uM0K3LSI6Qds40sZdhqy343D nKF1AalapkTkhy/ypRBVypdug7o8/xaqtmHaWv9UPFEGjb1UhHpm/4rTjAiBbtASwfKx 3JH/kVbQPqPEjk5/0bNv7k1/Y2BIonRHJ0vWOSQM3zvPY70Uxrv2rSgTrqGgUv6GDu7E chrKKhinXiSRYk/xsds2GtV3wz6HxpGI4jq2FDoKpBIlG6t+6bi34LoQK0m5uh10NjJQ 5mDPrpUbvxQNLMegc4nJJFYKUu1kf5g3ZYgnxHtFO6ahoMuizo6fqj2+osS40oUSZmZK mhMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=8d6xo5L9QevHc/0Sduv9NQkae1fLgboqRLN/cOlHL94=; b=kvlPbA+0d2Ves1dLXFUGQriDXfHxgNlssyf8OQPmCm2BmZGamQbwWI1wcbM7mSA04A rCYtktX+0QVj9AzavTa+zrlwuabRT/323Q9K73EEcQSKK+0MzCAassEOZxI3Bln2eBoT bp5hSp+h18ZF7jhJFJQSZUwleV8vISSwsF3GZZj+G2aPYHvUsq3vxkMQbYD0hQVfDhY2 zxiXj0IzKkmdJ+YuXk+E3fw0i4Z5SwBdCglop/3Lf7J39MJKMnNBmRCjrfqQkf6chLUU XV6NjRJKZvMho9xdPLM7qDBztm0iC5JFibGfyK4yspw70LC/En2PerR2vm6yKPFrNao1 398w== X-Gm-Message-State: AOAM533GCIrxCtxoVQcnuCrr9HBaC/ugV5HzDFY7nXA3BRNf5b++bfE/ XLOkQHoOnI/zTtodkeMxeNLPKmxY4DtkFE/uG1J9uA== X-Google-Smtp-Source: ABdhPJwZ3uxL8AigS1SCTssbBbBxtSyTYvRLlSFXF7X1iRF0BIcI7ZsH6TQi0ZjmX4wm1iehH5EIvAVb3aaD1X5z2aM= X-Received: by 2002:ac8:5ed1:: with SMTP id s17mr7389237qtx.196.1633016771378; Thu, 30 Sep 2021 08:46:11 -0700 (PDT) MIME-Version: 1.0 References: <20210930071143.63410-1-wangkefeng.wang@huawei.com> <20210930071143.63410-8-wangkefeng.wang@huawei.com> In-Reply-To: <20210930071143.63410-8-wangkefeng.wang@huawei.com> From: Alexander Potapenko Date: Thu, 30 Sep 2021 17:45:35 +0200 Message-ID: Subject: Re: [PATCH v4 07/11] mm: kasan: Use is_kernel() helper To: Kefeng Wang Cc: Arnd Bergmann , Linux-Arch , LKML , linuxppc-dev@lists.ozlabs.org, Steven Rostedt , Ingo Molnar , David Miller , Alexei Starovoitov , Andrey Ryabinin , Andrew Morton , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , bpf@vger.kernel.org, linux-alpha@vger.kernel.org, Christophe Leroy , Andrey Konovalov , Dmitry Vyukov Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org On Thu, Sep 30, 2021 at 9:09 AM Kefeng Wang wr= ote: > > Directly use is_kernel() helper in kernel_or_module_addr(). > > Cc: Andrey Ryabinin > Cc: Alexander Potapenko > Cc: Andrey Konovalov > Cc: Dmitry Vyukov > Signed-off-by: Kefeng Wang Reviewed-by: Alexander Potapenko > --- > mm/kasan/report.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/mm/kasan/report.c b/mm/kasan/report.c > index 3239fd8f8747..1c955e1c98d5 100644 > --- a/mm/kasan/report.c > +++ b/mm/kasan/report.c > @@ -226,7 +226,7 @@ static void describe_object(struct kmem_cache *cache,= void *object, > > static inline bool kernel_or_module_addr(const void *addr) > { > - if (addr >=3D (void *)_stext && addr < (void *)_end) > + if (is_kernel((unsigned long)addr)) > return true; > if (is_module_address((unsigned long)addr)) > return true; > -- > 2.26.2 > --=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