From patchwork Sun Nov 26 07:19:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 13468787 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5AA582F41; Sun, 26 Nov 2023 07:19:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="l8eJqj2q" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 383C9C433C7; Sun, 26 Nov 2023 07:19:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1700983164; bh=8gd0dMckeTvfrJbqiPZ2qHzROw5OCFMp48suO82vyAs=; h=From:To:Cc:Subject:Date:From; b=l8eJqj2qVxYSd0kyCthbRdsjJWwv8BkOprPhHQWVhjZE77suqM6bLD/BiLU/E1itB nACkUvUzYVBu3EyM6bJxFONeF6hruY82B1HyUWGAqbzqn5EaniAbbi53yeV58r0imt zT8dHSlB/WuMWZB8tEJRbgv06wvUmqrw/n6IMOcbv0EFj4KG/VELuhXNdO3LOvOoRM gdEalE+TZ+Hb+Mx2qjdTAU2T1C9ZblxQTHsNWYLM6r0sHpHh3kbiz/wTHdnDO6ixYb K9QP7W9tZsUkVb6Fgs4bujgAZiZhIiS/CsPQkrcKnTWsgJE3wKIeomXu98uMlhSZYy FGRtjHj4xOqww== From: Masahiro Yamada To: linux-kbuild@vger.kernel.org Cc: Paul Gortmaker , linux-modules@vger.kernel.org, Masahiro Yamada , linux-kernel@vger.kernel.org Subject: [PATCH] init: move THIS_MODULE from to Date: Sun, 26 Nov 2023 16:19:14 +0900 Message-Id: <20231126071914.932241-1-masahiroy@kernel.org> X-Mailer: git-send-email 2.40.1 Precedence: bulk X-Mailing-List: linux-kbuild@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Commit f50169324df4 ("module.h: split out the EXPORT_SYMBOL into export.h") appropriately separated EXPORT_SYMBOL into because modules and EXPORT_SYMBOL are orthogonal; modules are symbol consumers, while EXPORT_SYMBOL are used by symbol providers, which may not be necessarily a module. However, that commit also relocated THIS_MODULE. As explained in the commit description, the intention was to define THIS_MODULE in a lightweight header, but I do not believe was the suitable location because EXPORT_SYMBOL and THIS_MODULE are unrelated. Move it to another lightweight header, . The reason for choosing is to make self-contained without relying on incorrectly including . With this adjustment, the role of becomes clearer as it only defines EXPORT_SYMBOL. Signed-off-by: Masahiro Yamada Reviewed-by: Luis Chamberlain --- include/linux/export.h | 18 ------------------ include/linux/init.h | 7 +++++++ 2 files changed, 7 insertions(+), 18 deletions(-) diff --git a/include/linux/export.h b/include/linux/export.h index 9911508a9604..0bbd02fd351d 100644 --- a/include/linux/export.h +++ b/include/linux/export.h @@ -6,15 +6,6 @@ #include #include -/* - * Export symbols from the kernel to modules. Forked from module.h - * to reduce the amount of pointless cruft we feed to gcc when only - * exporting a simple symbol or two. - * - * Try not to add #includes here. It slows compilation and makes kernel - * hackers place grumpy comments in header files. - */ - /* * This comment block is used by fixdep. Please do not remove. * @@ -23,15 +14,6 @@ * side effect of the *.o build rule. */ -#ifndef __ASSEMBLY__ -#ifdef MODULE -extern struct module __this_module; -#define THIS_MODULE (&__this_module) -#else -#define THIS_MODULE ((struct module *)0) -#endif -#endif /* __ASSEMBLY__ */ - #ifdef CONFIG_64BIT #define __EXPORT_SYMBOL_REF(sym) \ .balign 8 ASM_NL \ diff --git a/include/linux/init.h b/include/linux/init.h index 01b52c9c7526..3fa3f6241350 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -179,6 +179,13 @@ extern void (*late_time_init)(void); extern bool initcall_debug; +#ifdef MODULE +extern struct module __this_module; +#define THIS_MODULE (&__this_module) +#else +#define THIS_MODULE ((struct module *)0) +#endif + #endif #ifndef MODULE