Message ID | 20240202195909.3458162-6-sboyd@kernel.org |
---|---|
State | Superseded |
Headers | show
Return-Path: <linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=DFzk33Tu; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=CKk7oRVP; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org; envelope-from=linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=patchwork.ozlabs.org) Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4TRRTb3tvwz1yQ0 for <incoming@patchwork.ozlabs.org>; Sat, 3 Feb 2024 07:00:35 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=6ibBvNWtj9I8biZ96CkFZ4v4tfreGCPhIbpTACz17i8=; b=DFzk33TuPcXdyTQCM3ZqadExSC stmLPNABa9V474oH9lrLidWsiRpj+mDEklmGsk5wMSgTUFyBinpKUmmbWkZhsDWHVouIjMZy1zG9p 526LyloXl53NyiiMWZxY7VBbE8qVj3LKSx7G28o2fxBsfutcSuGr2NEfu6gknt7W8ODU9L1SCQTfw SHWRs9whiYtFo/Q1X04dDNYPg3ORcCB6Uo3NLlHVd4z7gP7pypScfxczFH9SSxJbc6UPksGt8ybLu DFxoulNa6DE453xHMc8Oids40LPzbEZdxnjvjiBRBCbfbSxX6RvqLkdPySUYkNWKPb8BBL71ulNhj YmH//zrQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rVziA-0000000DIdQ-3WH2; Fri, 02 Feb 2024 20:00:30 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rVzgy-0000000DI3h-0bbE; Fri, 02 Feb 2024 19:59:20 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 6684E62872; Fri, 2 Feb 2024 19:59:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A256FC43601; Fri, 2 Feb 2024 19:59:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706903955; bh=Ik7PysFz2Q/PQymMpEmnCsC39bu2MIXYeb1T3HpNV9c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CKk7oRVPGb6C4HwkiFVL7iT8eK5Iik/EDFzYFOWPTWd77I5UUfPzNd7aKEoHobNdK k6Iw7l3n0kK1QlfHNjMomlOOIirYwU1YpZobTyaCqSTvK63/LTQWC3U/94Wr+aCo1K 394zegdhvm14D9LJ9NsIivpUSTTgKA8VMQ+qda/ZZNZWNO9pqhQWXlJ356r8GK1dg/ Y9EE2/Xe7HhWLyB8r206UzMDMPWCWCqSs4f0n5ApmA9aFdeFK0zgM70sRYd1vQf03A xHklCpZJB3PdHRb1/vDAF5/fzpbWmHhXlWWWVeSgi2bjCoLOEJCf9ZpZ0n4+cooxP7 oZE/QJs34kWsw== From: Stephen Boyd <sboyd@kernel.org> To: Rob Herring <robh+dt@kernel.org> Cc: linux-kernel@vger.kernel.org, patches@lists.linux.dev, linux-um@lists.infradead.org, linux-arm-kernel@lists.infradead.org, kunit-dev@googlegroups.com, linux-kselftest@vger.kernel.org, devicetree@vger.kernel.org, Frank Rowand <frowand.list@gmail.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Mark Rutland <mark.rutland@arm.com> Subject: [PATCH v3 5/7] arm64: Unconditionally call unflatten_device_tree() Date: Fri, 2 Feb 2024 11:59:06 -0800 Message-ID: <20240202195909.3458162-6-sboyd@kernel.org> X-Mailer: git-send-email 2.43.0.594.gd9cf4e227d-goog In-Reply-To: <20240202195909.3458162-1-sboyd@kernel.org> References: <20240202195909.3458162-1-sboyd@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240202_115916_391906_463F37D5 X-CRM114-Status: GOOD ( 12.32 ) X-Spam-Score: -7.5 (-------) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Call this function unconditionally so that we can populate an empty DTB on platforms that don't boot with a firmware provided or builtin DTB. When ACPI is in use, unflatten_device_tree() ignores the ' [...] Content analysis details: (-7.5 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [139.178.84.217 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.0 T_SCC_BODY_TEXT_LINE No description available. -2.3 DKIMWL_WL_HIGH DKIMwl.org - High trust sender X-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: <linux-um.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-um>, <mailto:linux-um-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-um/> List-Post: <mailto:linux-um@lists.infradead.org> List-Help: <mailto:linux-um-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-um>, <mailto:linux-um-request@lists.infradead.org?subject=subscribe> Sender: "linux-um" <linux-um-bounces@lists.infradead.org> Errors-To: linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org |
Series |
of: populate of_root node if bootloader doesn't
|
expand
|
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 417a8a86b2db..ede3d59dabf0 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -351,8 +351,7 @@ void __init __no_sanitize_address setup_arch(char **cmdline_p) /* Parse the ACPI tables for possible boot-time configuration */ acpi_boot_table_init(); - if (acpi_disabled) - unflatten_device_tree(); + unflatten_device_tree(); bootmem_init();
Call this function unconditionally so that we can populate an empty DTB on platforms that don't boot with a firmware provided or builtin DTB. When ACPI is in use, unflatten_device_tree() ignores the 'initial_boot_params' pointer so the live DT on those systems won't be whatever that's pointing to. Similarly, when kexec copies the DT data the previous kernel to the new one on ACPI systems, of_kexec_alloc_and_setup_fdt() will ignore the live DT (the empty root one) and copy the 'initial_boot_params' data. Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: <linux-arm-kernel@lists.infradead.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org> --- arch/arm64/kernel/setup.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)