From patchwork Fri Jan 12 20:07:44 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 13518688 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 4573216419; Fri, 12 Jan 2024 20:07:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nGnzveG/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6629AC43390; Fri, 12 Jan 2024 20:07:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1705090072; bh=Ftr3BKZw8coGMgoBGEKihNEJ4LajJ+HPG/Va2fa5Q/U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nGnzveG/zSlluWPqK50MsRXFZgcqSqsT+b/j0PKAXVP7ZtdQyKAg1m3guf/d+IBVA 07pgc33Sbuh8cKPwsn4TbkcS4oenSfh3ljankCMJg+3KSR3xYKkq/FmivEMPbadwki Gnq+l6slqsgHmDwxM4NPuJLHDFpi9gubCjnjUfdn8Sxy8LDYoDjOakf6QcAqDVrAdr MDEBQQjx5CgxrWGB2llxj/Yj47M6+dU6XpmzgIP+dv/eye+gmUbhi9gVZJmKU4tJND 6j9+++zKYkaAyoMnCs8uOcZrzTy3AjyU8ipiPD0bw/T6SgAUz0oA+ED7fSzqWiE2Uf xFRtahWLY3/DA== From: Stephen Boyd To: Rob Herring 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 , Catalin Marinas , Will Deacon Subject: [PATCH 1/6] arm64: Unconditionally call unflatten_device_tree() Date: Fri, 12 Jan 2024 12:07:44 -0800 Message-ID: <20240112200750.4062441-2-sboyd@kernel.org> X-Mailer: git-send-email 2.43.0.275.g3460e3d667-goog In-Reply-To: <20240112200750.4062441-1-sboyd@kernel.org> References: <20240112200750.4062441-1-sboyd@kernel.org> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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. There's no harm in calling unflatten_device_tree() unconditionally. If there isn't a valid initial_boot_params dtb then unflatten_device_tree() returns early. Cc: Rob Herring Cc: Frank Rowand Cc: Catalin Marinas Cc: Will Deacon Cc: Signed-off-by: Stephen Boyd --- arch/arm64/kernel/setup.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) 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();