From patchwork Sun Sep 26 07:20:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 12517991 X-Patchwork-Delegate: kuba@kernel.org 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 EB7BAC433EF for ; Sun, 26 Sep 2021 07:18:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D2FFB60F94 for ; Sun, 26 Sep 2021 07:18:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231268AbhIZHTy (ORCPT ); Sun, 26 Sep 2021 03:19:54 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:19369 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231236AbhIZHTu (ORCPT ); Sun, 26 Sep 2021 03:19:50 -0400 Received: from dggemv704-chm.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4HHH7T6xNhzRS0T; Sun, 26 Sep 2021 15:13:57 +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; Sun, 26 Sep 2021 15:18:12 +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; Sun, 26 Sep 2021 15:18:12 +0800 From: Kefeng Wang To: , , , , , , , , , CC: , , , , Kefeng Wang Subject: [PATCH v3 8/9] extable: Use is_kernel_text() helper Date: Sun, 26 Sep 2021 15:20:47 +0800 Message-ID: <20210926072048.190336-9-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210926072048.190336-1-wangkefeng.wang@huawei.com> References: <20210926072048.190336-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org The core_kernel_text() should check the gate area, as it is part of kernel text range. Cc: Steven Rostedt Signed-off-by: Kefeng Wang --- kernel/extable.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/extable.c b/kernel/extable.c index 98ca627ac5ef..0ba383d850ff 100644 --- a/kernel/extable.c +++ b/kernel/extable.c @@ -64,8 +64,7 @@ const struct exception_table_entry *search_exception_tables(unsigned long addr) int notrace core_kernel_text(unsigned long addr) { - if (addr >= (unsigned long)_stext && - addr < (unsigned long)_etext) + if (is_kernel_text(addr)) return 1; if (system_state < SYSTEM_RUNNING &&