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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 49176C4332F for ; Thu, 6 Jan 2022 23:43:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245674AbiAFXn1 (ORCPT ); Thu, 6 Jan 2022 18:43:27 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:28591 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245662AbiAFXnZ (ORCPT ); Thu, 6 Jan 2022 18:43:25 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1641512605; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7kJi6QbhQe0UKqaYog/4fs8E9UhX+TpYHbtJQ2kzdak=; b=eSPuA029nkI2EpemBayf5/nQbBnIsGwAVZlbp3jNdbZWEjjQfdOBUz4xwQ2R1GclIacsHA VP59JuicMKuZfyKGpMux4aK52KQv6sdvmFXryp41jS66x6IpQhjlU6sfywfD4W3x+XHFlw 7uauXOjszGAgQMs5wieBpoGeVNwJ9Vc= Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-330-Kyak9HvGODyxHCGMTUGbZg-1; Thu, 06 Jan 2022 18:43:24 -0500 X-MC-Unique: Kyak9HvGODyxHCGMTUGbZg-1 Received: by mail-wm1-f69.google.com with SMTP id r2-20020a05600c35c200b00345c3b82b22so3752548wmq.0 for ; Thu, 06 Jan 2022 15:43:23 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=7kJi6QbhQe0UKqaYog/4fs8E9UhX+TpYHbtJQ2kzdak=; b=bug9P9xlmK+GDBulNuzz/7YZNRWMX51odqdSPOnP0SvU7Y0GKN3an5yKZn5vInXCcj nVfHEMl2dMto55UEYlj+MxVg3DaPr9TkVssJ7coOkBz+ldEmzgB+MMQaZE8xjqNbGQh8 hUGVWJvOqczxMDtKkxFKH7cxfBraHT+hNgNRQEg35zIPNQWhm/IWTklhPNKHplm6Hhsv ivIaY7z9s6c8FhOlZT63q8bWjEU/uAyF1PhjIFpEy52mSMFWuQ/HdGX+ex42BjFL6NMN tkYkhGbn3iAR0H0p/Pv18fy/0SBFT98cA/rXjoezD6fBECxm0OFIdj05Hjl7K/gcQaIl vX/Q== X-Gm-Message-State: AOAM5336w2y9K1HNuxAhaklUdLmTEyGfmpRr0REPF3QlaNmZlvnERDc+ ZnepZU6F7LXbZwcWowh/nRs8ZtDtSrxaWNKiojJUJbTfvOUMZp1mr4gpHY5ehTJwXUx7hue+uqC 8Vc/NYr+veHFAjLayN+VBg1Ml X-Received: by 2002:a7b:c118:: with SMTP id w24mr8854760wmi.22.1641512602931; Thu, 06 Jan 2022 15:43:22 -0800 (PST) X-Google-Smtp-Source: ABdhPJyuWOVlKzbntgAR3rk5Pck95yKMKdiYzb9eqkYQL4b7cFRgzC6t8B5lsX7KIeE20CgK6R/AuA== X-Received: by 2002:a7b:c118:: with SMTP id w24mr8854744wmi.22.1641512602724; Thu, 06 Jan 2022 15:43:22 -0800 (PST) Received: from localhost (cpc111743-lutn13-2-0-cust979.9-3.cable.virginm.net. [82.17.115.212]) by smtp.gmail.com with ESMTPSA id w8sm470021wrs.41.2022.01.06.15.43.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Jan 2022 15:43:22 -0800 (PST) From: Aaron Tomlin To: mcgrof@kernel.org Cc: cl@linux.com, pmladek@suse.com, mbenes@suse.cz, akpm@linux-foundation.org, jeyu@kernel.org, linux-kernel@vger.kernel.org, linux-modules@vger.kernel.org, atomlin@atomlin.com, ghalat@redhat.com, allen.lkml@gmail.com Subject: [RFC PATCH v2 02/13] module: Simple refactor in preparation for split Date: Thu, 6 Jan 2022 23:43:08 +0000 Message-Id: <20220106234319.2067842-3-atomlin@redhat.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220106234319.2067842-1-atomlin@redhat.com> References: <20220106234319.2067842-1-atomlin@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: No functional change. This patch makes it possible to move non-essential code out of core module code. Signed-off-by: Aaron Tomlin --- kernel/module/internal.h | 22 ++++++++++++++++++++++ kernel/module/main.c | 23 ++--------------------- 2 files changed, 24 insertions(+), 21 deletions(-) diff --git a/kernel/module/internal.h b/kernel/module/internal.h index 33783abc377b..ffc50df010a7 100644 --- a/kernel/module/internal.h +++ b/kernel/module/internal.h @@ -7,6 +7,28 @@ #include #include +#include + +#ifndef ARCH_SHF_SMALL +#define ARCH_SHF_SMALL 0 +#endif + +/* If this is set, the section belongs in the init part of the module */ +#define INIT_OFFSET_MASK (1UL << (BITS_PER_LONG-1)) +/* Maximum number of characters written by module_flags() */ +#define MODULE_FLAGS_BUF_SIZE (TAINT_FLAGS_COUNT + 4) +#define MODULE_SECT_READ_SIZE (3 /* "0x", "\n" */ + (BITS_PER_LONG / 4)) + +extern struct mutex module_mutex; +extern struct list_head modules; + +/* Provided by the linker */ +extern const struct kernel_symbol __start___ksymtab[]; +extern const struct kernel_symbol __stop___ksymtab[]; +extern const struct kernel_symbol __start___ksymtab_gpl[]; +extern const struct kernel_symbol __stop___ksymtab_gpl[]; +extern const s32 __start___kcrctab[]; +extern const s32 __start___kcrctab_gpl[]; struct load_info { const char *name; diff --git a/kernel/module/main.c b/kernel/module/main.c index bc997c3e2c95..2a6b859716c0 100644 --- a/kernel/module/main.c +++ b/kernel/module/main.c @@ -63,10 +63,6 @@ #define CREATE_TRACE_POINTS #include -#ifndef ARCH_SHF_SMALL -#define ARCH_SHF_SMALL 0 -#endif - /* * Modules' sections will be aligned on page boundaries * to ensure complete separation of code and data, but @@ -78,9 +74,6 @@ # define debug_align(X) (X) #endif -/* If this is set, the section belongs in the init part of the module */ -#define INIT_OFFSET_MASK (1UL << (BITS_PER_LONG-1)) - /* * Mutex protects: * 1) List of modules (also safely readable with preempt_disable), @@ -88,8 +81,8 @@ * 3) module_addr_min/module_addr_max. * (delete and add uses RCU list operations). */ -static DEFINE_MUTEX(module_mutex); -static LIST_HEAD(modules); +DEFINE_MUTEX(module_mutex); +LIST_HEAD(modules); /* Work queue for freeing init sections in success case */ static void do_free_init(struct work_struct *w); @@ -408,14 +401,6 @@ static __maybe_unused void *any_section_objs(const struct load_info *info, return (void *)info->sechdrs[sec].sh_addr; } -/* Provided by the linker */ -extern const struct kernel_symbol __start___ksymtab[]; -extern const struct kernel_symbol __stop___ksymtab[]; -extern const struct kernel_symbol __start___ksymtab_gpl[]; -extern const struct kernel_symbol __stop___ksymtab_gpl[]; -extern const s32 __start___kcrctab[]; -extern const s32 __start___kcrctab_gpl[]; - #ifndef CONFIG_MODVERSIONS #define symversion(base, idx) NULL #else @@ -1491,7 +1476,6 @@ struct module_sect_attrs { struct module_sect_attr attrs[]; }; -#define MODULE_SECT_READ_SIZE (3 /* "0x", "\n" */ + (BITS_PER_LONG / 4)) static ssize_t module_sect_read(struct file *file, struct kobject *kobj, struct bin_attribute *battr, char *buf, loff_t pos, size_t count) @@ -4498,9 +4482,6 @@ static void cfi_cleanup(struct module *mod) #endif } -/* Maximum number of characters written by module_flags() */ -#define MODULE_FLAGS_BUF_SIZE (TAINT_FLAGS_COUNT + 4) - /* Keep in sync with MODULE_FLAGS_BUF_SIZE !!! */ static char *module_flags(struct module *mod, char *buf) { -- 2.31.1