From patchwork Thu Sep 30 07:11:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 12527481 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 1BF81C43219 for ; Thu, 30 Sep 2021 07:09:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 064F5617E4 for ; Thu, 30 Sep 2021 07:09:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348585AbhI3HLN (ORCPT ); Thu, 30 Sep 2021 03:11:13 -0400 Received: from szxga01-in.huawei.com ([45.249.212.187]:27938 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348552AbhI3HLJ (ORCPT ); Thu, 30 Sep 2021 03:11:09 -0400 Received: from dggemv704-chm.china.huawei.com (unknown [172.30.72.56]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4HKklR021Szbmyw; Thu, 30 Sep 2021 15:05:07 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggemv704-chm.china.huawei.com (10.3.19.47) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Thu, 30 Sep 2021 15:09:19 +0800 Received: from localhost.localdomain.localdomain (10.175.113.25) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Thu, 30 Sep 2021 15:09:17 +0800 From: Kefeng Wang To: , , , , , , , , , CC: , , , , , Christophe Leroy , Kefeng Wang , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov Subject: [PATCH v4 07/11] mm: kasan: Use is_kernel() helper Date: Thu, 30 Sep 2021 15:11:39 +0800 Message-ID: <20210930071143.63410-8-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210930071143.63410-1-wangkefeng.wang@huawei.com> References: <20210930071143.63410-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org 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 Reviewed-by: Andrey Konovalov --- 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 >= (void *)_stext && addr < (void *)_end) + if (is_kernel((unsigned long)addr)) return true; if (is_module_address((unsigned long)addr)) return true;