From patchwork Wed Aug 11 08:51:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 12430513 X-Patchwork-Delegate: geert@linux-m68k.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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 87D1FC432BE for ; Wed, 11 Aug 2021 09:00:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6FDE160EBD for ; Wed, 11 Aug 2021 09:00:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236580AbhHKJBC (ORCPT ); Wed, 11 Aug 2021 05:01:02 -0400 Received: from newton.telenet-ops.be ([195.130.132.45]:57840 "EHLO newton.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236447AbhHKJBB (ORCPT ); Wed, 11 Aug 2021 05:01:01 -0400 X-Greylist: delayed 542 seconds by postgrey-1.27 at vger.kernel.org; Wed, 11 Aug 2021 05:01:00 EDT Received: from baptiste.telenet-ops.be (baptiste.telenet-ops.be [IPv6:2a02:1800:120:4::f00:13]) by newton.telenet-ops.be (Postfix) with ESMTPS id 4Gl3TL6vNyzMqlKx for ; Wed, 11 Aug 2021 10:51:34 +0200 (CEST) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed20:438:1ff1:1071:f524]) by baptiste.telenet-ops.be with bizsmtp id g8rG250091gJxCh018rG46; Wed, 11 Aug 2021 10:51:34 +0200 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1mDjxE-001yaE-4C; Wed, 11 Aug 2021 10:51:16 +0200 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1mDjxD-0058xK-E7; Wed, 11 Aug 2021 10:51:15 +0200 From: Geert Uytterhoeven To: Rob Herring , Russell King , Nicolas Pitre , Ard Biesheuvel , Linus Walleij , Catalin Marinas , Will Deacon , Thomas Bogendoerfer , Nick Kossifidis , Paul Walmsley , Palmer Dabbelt , Albert Ou , Frank Rowand , Dave Young Cc: Baoquan He , Vivek Goyal , Mike Rapoport , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org, kexec@lists.infradead.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven , Palmer Dabbelt Subject: [PATCH v5 6/9] riscv: Remove non-standard linux,elfcorehdr handling Date: Wed, 11 Aug 2021 10:51:04 +0200 Message-Id: <41c75d6ee3114ae6304f8afe0051895af91200ee.1628670468.git.geert+renesas@glider.be> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org RISC-V uses platform-specific code to locate the elf core header in memory. However, this does not conform to the standard "linux,elfcorehdr" DT bindings, as it relies on a reserved memory node with the "linux,elfcorehdr" compatible value, instead of on a "linux,elfcorehdr" property under the "/chosen" node. The non-compliant code can just be removed, as the standard behavior is already implemented by platform-agnostic handling in the FDT core code. Fixes: 5640975003d0234d ("RISC-V: Add crash kernel support") Signed-off-by: Geert Uytterhoeven Reviewed-by: Palmer Dabbelt Acked-by: Palmer Dabbelt --- v5: - Add Reviewed-by, Acked-by, v4: - No changes. --- arch/riscv/mm/init.c | 20 -------------------- 1 file changed, 20 deletions(-) diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 88134cc288d9a60b..3f284b2d327166af 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -860,26 +860,6 @@ static void __init reserve_crashkernel(void) } #endif /* CONFIG_KEXEC_CORE */ -#ifdef CONFIG_CRASH_DUMP -/* - * We keep track of the ELF core header of the crashed - * kernel with a reserved-memory region with compatible - * string "linux,elfcorehdr". Here we register a callback - * to populate elfcorehdr_addr/size when this region is - * present. Note that this region will be marked as - * reserved once we call early_init_fdt_scan_reserved_mem() - * later on. - */ -static int __init elfcore_hdr_setup(struct reserved_mem *rmem) -{ - elfcorehdr_addr = rmem->base; - elfcorehdr_size = rmem->size; - return 0; -} - -RESERVEDMEM_OF_DECLARE(elfcorehdr, "linux,elfcorehdr", elfcore_hdr_setup); -#endif - void __init paging_init(void) { setup_bootmem();