From patchwork Fri Dec 3 05:11:52 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 12694584 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 030FFC433EF for ; Fri, 3 Dec 2021 05:20:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=nPR8nb8/6CuYNZdDt5oXvpwmiqNaUIw4zqVGy8l//cI=; b=wL5QQrxrEx+50Y olch1BXyPZIhlfd4qN5Se0yGAVQ6asWeYvRNPwLyFgrkovkqUjHq+oRNXhIu8+YWbciF2A/DKCtSG zIMN8G/DuHDgymrAkOSSGl2kqJKqNscADfnmVqpDk/6+Hyg6rvGl7BPMs9cYwZc/oJd9v1OK5oVsE Tv0SlAoLrnMHbCHCYqCt8a9xRW2qOH1v+Ayg+7JvBNsXi5b1VGIuhkayL9Fa4minRUUFhgxO9kR1L oyjFKlE6eXtJsC5OPlijSEPqZ6NDmPuxPLGhqlH97pceA7Iq176Ia2Y19up8eoIilYM+eSSYzj9uH d7Q3XKAcd2B1CGABAysQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mt0yd-00EM5E-PM; Fri, 03 Dec 2021 05:19:19 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mt0yW-00EM3j-4l; Fri, 03 Dec 2021 05:19:13 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 914AF6291A; Fri, 3 Dec 2021 05:19:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2EE51C53FC7; Fri, 3 Dec 2021 05:19:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1638508751; bh=DIZ3iH9eTHW1kh3AtvEImcM5tdEzpteHHLSK3AhyocI=; h=From:To:Cc:Subject:Date:From; b=pwAgFJYrBa6ZaXpfWCune5BzG6L7h1HBmuLVVxnUVumJnJNly8D9n25nol++Q6NrE omijuK2cbfxAN0weD9K0s5YOrmKpa+sXTxvw30B87IOuPW2ty0CSz1BmIrPFZ+ZC7Y Gw90LwhSB7r3c2My/ifoHcj/cjfue3r8HPoRLqLFgGzx5+cBV2Nu/RcEUibuOIfuvJ SHcugi2aJOTLuv3i5ibsKLT1MnzCnwtMk7uy3jIo8qwoIUN2bznKPITIj6XYr+LH43 3oKo7rN/NdUvshAWpldSxfqFHfTacl7nM8Es81p38wsHP7hhvDDDUcwsBG3iwXy670 JhW8DJiDTf9kQ== From: Jisheng Zhang To: Russell King , Catalin Marinas , Paul Walmsley , Will Deacon , Palmer Dabbelt , Albert Ou , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, hpa@zytor.com, Eric Biederman , Alexandre Ghiti Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, kexec@lists.infradead.org Subject: [RFC PATCH 0/5] kexec: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef Date: Fri, 3 Dec 2021 13:11:52 +0800 Message-Id: <20211203051157.2160-1-jszhang@kernel.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211202_211912_251446_4CC92639 X-CRM114-Status: UNSURE ( 9.67 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Replace the conditional compilation using "#ifdef CONFIG_KEXEC_CORE" by a check for "IS_ENABLED(CONFIG_BLK_DEV_INITRD)", to simplify the code and increase compile coverage. I only modifies x86, arm, arm64 and riscv, other arch are not touched. If the idea is accepted, I will modify all architectures code. Jisheng Zhang (5): kexec: make crashk_res, crashk_low_res and crash_notes symbols always visible riscv: mm: init: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef x86/setup: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef arm64: mm: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef arm: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef arch/arm/kernel/setup.c | 7 +++---- arch/arm64/mm/init.c | 9 +++------ arch/riscv/mm/init.c | 6 ++---- arch/x86/kernel/setup.c | 10 +++------- include/linux/kexec.h | 12 ++++++------ 5 files changed, 17 insertions(+), 27 deletions(-)