From patchwork Sat Jun 26 07:34:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 12346265 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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 C3ABCC49EA6 for ; Sat, 26 Jun 2021 07:27:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A859A61456 for ; Sat, 26 Jun 2021 07:27:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229962AbhFZH30 (ORCPT ); Sat, 26 Jun 2021 03:29:26 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:5431 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229929AbhFZH3Z (ORCPT ); Sat, 26 Jun 2021 03:29:25 -0400 Received: from dggemv703-chm.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4GBlj962tnz74RW; Sat, 26 Jun 2021 15:23:41 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggemv703-chm.china.huawei.com (10.3.19.46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Sat, 26 Jun 2021 15:26:58 +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 15.1.2176.2; Sat, 26 Jun 2021 15:26:57 +0800 From: Kefeng Wang To: Arnd Bergmann , , CC: Kefeng Wang , , , , Subject: [PATCH 0/9] sections: Unify kernel sections range check and use Date: Sat, 26 Jun 2021 15:34:30 +0800 Message-ID: <20210626073439.150586-1-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org There are three head files(kallsyms.h, kernel.h and sections.h) which include the kernel sections range check, let's make some cleanup and unify them. 1. cleanup arch specific text/data check and fix address boundary check in kallsyms.h 2. make all the basic kernel range check function into sections.h 3. update all the callers, and use the helper in sections.h to simplify the code 4. use memory_intersects() in sections.h instead of private overlap for dma-debug Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-s390@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: iommu@lists.linux-foundation.org Cc: bpf@vger.kernel.org Kefeng Wang (9): kallsyms: Remove arch specific text and data check kallsyms: Fix address-checks for kernel related range sections: Move and rename core_kernel_data() to is_kernel_data() sections: Move is_kernel_inittext() into sections.h kallsyms: Rename is_kernel() and is_kernel_text() sections: Add new is_kernel() and is_kernel_text() s390: kprobes: Use is_kernel() helper powerpc/mm: Use is_kernel_text() and is_kernel_inittext() helper dma-debug: Use memory_intersects() directly arch/powerpc/mm/pgtable_32.c | 7 +--- arch/s390/kernel/kprobes.c | 9 +---- arch/x86/kernel/unwind_orc.c | 2 +- arch/x86/net/bpf_jit_comp.c | 2 +- include/asm-generic/sections.h | 71 ++++++++++++++++++++++++++-------- include/linux/kallsyms.h | 21 +++------- include/linux/kernel.h | 2 - kernel/cfi.c | 2 +- kernel/dma/debug.c | 14 +------ kernel/extable.c | 33 ++-------------- kernel/locking/lockdep.c | 3 -- kernel/trace/ftrace.c | 2 +- mm/kasan/report.c | 2 +- net/sysctl_net.c | 2 +- 14 files changed, 76 insertions(+), 96 deletions(-)