From patchwork Fri Jan 26 23:54:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oreoluwa Babatunde X-Patchwork-Id: 192884 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7301:2395:b0:106:343:edcb with SMTP id gw21csp223838dyb; Fri, 26 Jan 2024 16:05:05 -0800 (PST) X-Google-Smtp-Source: AGHT+IFhesYb6chebyDsAyMmSJuULYJ3/II/n7tbQOse0DEux4euxgA94FzuV6z6b82kzhJ17rfy X-Received: by 2002:adf:e98e:0:b0:337:c39a:1fb5 with SMTP id h14-20020adfe98e000000b00337c39a1fb5mr291419wrm.23.1706313904814; Fri, 26 Jan 2024 16:05:04 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1706313904; cv=pass; d=google.com; s=arc-20160816; b=rQV1oBL6pSeKujGgECRmUncy3iCK6wRZXSbbhOCSRlp7rG0lRs+AUy/9+6KYq5P+hR yXN+8joObWilRkPnkxYF9I8yVjv26HIE/4wJ1w9//bKgfMLO/luVvymdzPi/luFXM4aq /0yWgGVgCixGFq+I8tCIUkJZ6A81kAlBtnAFk3IdOZNfFea9vzs7YcDQUeuv22LjHBAZ q4+L1i+d8M7ZTxFeKNNKTn4ocWC76quGGoU2vvgu5MPAkYjFWRrz9uyoFg8a/U8a4tQQ Rz0nkQlchlSG0xQW/I7YRh9oQKIIJosh6bgDZl0wSdXRGJGMYUxyuPrfDiG1Gda36lCn O2kQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:list-unsubscribe:list-subscribe:list-id:precedence :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=eShHXpDCJ4BD5txejNCWe8HZLN5QHa+jpumCWHtQOjg=; fh=hY6kMi6FvW8wLTV87L8suYr4n1TqNWWZDZNH+E6XASg=; b=LPM3JzwlejBfU1BuxUUEw1v9l3Ph1Qmml4Xl/raNf7u4GNhd+m75a4dcAyt73i5o1B jEW1KHB95h3Eh54dkBUkqPgP4qjPXnP+IDf6+uPFTY2I8UQUhrIeyWFjKZ5v6CQ+MCRd mCdAIBQo0ebIHFFHvNDisgWuVbQL6eSOSJJy2hsB6zSkobUh1Ee+SJslPeTO9+ulClqw vy9pnQPjFkU0Vjht8aSmwin8qMk4iUTsKYQb0bBgNGiZuCTke1XsusySHO6+XJiyMOpV /zPZ5yhnKt7btmgr+SGIdWv/dMRsPdb42nsA1NCPmypYvll6ag2VKHgM0eHXHdVknLka Xo+Q== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@quicinc.com header.s=qcppdkim1 header.b=dtx+kKzF; arc=pass (i=1 spf=pass spfdomain=quicinc.com dkim=pass dkdomain=quicinc.com dmarc=pass fromdomain=quicinc.com); spf=pass (google.com: domain of linux-kernel+bounces-40892-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) smtp.mailfrom="linux-kernel+bounces-40892-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=quicinc.com Received: from am.mirrors.kernel.org (am.mirrors.kernel.org. [147.75.80.249]) by mx.google.com with ESMTPS id i15-20020a170906250f00b00a318ad9a8e5si1066436ejb.746.2024.01.26.16.05.04 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Jan 2024 16:05:04 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-40892-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) client-ip=147.75.80.249; Authentication-Results: mx.google.com; dkim=pass header.i=@quicinc.com header.s=qcppdkim1 header.b=dtx+kKzF; arc=pass (i=1 spf=pass spfdomain=quicinc.com dkim=pass dkdomain=quicinc.com dmarc=pass fromdomain=quicinc.com); spf=pass (google.com: domain of linux-kernel+bounces-40892-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) smtp.mailfrom="linux-kernel+bounces-40892-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=quicinc.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id 6BDE21F21B6C for ; Sat, 27 Jan 2024 00:05:04 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id B64A66A035; Fri, 26 Jan 2024 23:56:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="dtx+kKzF" Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 C79906087E; Fri, 26 Jan 2024 23:56:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706313366; cv=none; b=h+CLc7zFP50qCnYnjCKJFG39NLB5Z0Dn5crIE416XQQtlR+pJVAPWhiJsqQCJBiSuOY/TW9LFxcyreUdxUSh5zGXZ+bNIC4zq1jMkOVeer/s/0ZDs3VimbZvyxrDjE67M7BQiVkoMy4xl/mkycPkv3iNzBsn55pagQgDW42BFpE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706313366; c=relaxed/simple; bh=cRfEBFsdnBK2iADLYrmymzMIGjloxIXjg8ZzIDcctLM=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Z5suOSFWwTM18CV0E26Gv2iRAZsv31uX6ZSCrEjumKXiaRmbIlm/q5ou7uUNXflt9PiSLAPtDvwQOTRvyQz7nj4hcmZNubFzpPIVUmkj95WspSEkfzbUH3+684Yy7T8fcuWpMNj8P9DFqY5/SpWP3uLiwhkWWdIv6l7HMWuwfSE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=dtx+kKzF; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40QNtSgI004148; Fri, 26 Jan 2024 23:55:28 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-type; s=qcppdkim1; bh=eShHXpDCJ4BD5txejNCW e8HZLN5QHa+jpumCWHtQOjg=; b=dtx+kKzFFiOgXb9S5cPzxhv1vZWWC8GApfaa ErnXCETEtdz2dhS1u9bpUTudvYHLBsmfNno8Vl1SG+Y2JPb5p2iMw7030KliCRta ihTizeueyDnMINo+aM+5aVNSeP0GfbFfzSJcbGOcmp0wa1TICPRIwGGFZqrwyhHM X1TSHLvLB/lAVnjmJTExOKxfltiXIcUBNJDfnG5q5Wv2ZaPoZN/C1GcHU6Ty02kX iOapJ+uitg9LCJllXlP5iUX3VvOhd3xNX6+AEQ460yI/fHalFBiRv2nR9hfMqv9h 9VilgrtAcsd6EjdzvW24CMvxJGEc3IFqEVcjA+b7KfwnZkKNEw== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vvjbg8g0p-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 26 Jan 2024 23:55:28 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 40QNtRAi009502 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 26 Jan 2024 23:55:27 GMT Received: from hu-obabatun-lv.qualcomm.com (10.49.16.6) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Fri, 26 Jan 2024 15:55:10 -0800 From: Oreoluwa Babatunde To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , Oreoluwa Babatunde Subject: [PATCH 28/46] um: resrved_mem: Move fdt_init_reserved_mem() below unflatten_device_tree() Date: Fri, 26 Jan 2024 15:54:07 -0800 Message-ID: <20240126235425.12233-29-quic_obabatun@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240126235425.12233-1-quic_obabatun@quicinc.com> References: <20240126235425.12233-1-quic_obabatun@quicinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nalasex01b.na.qualcomm.com (10.47.209.197) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: JdUDySUL0Sb0attbw7OLSmGrM1dNMKEH X-Proofpoint-ORIG-GUID: JdUDySUL0Sb0attbw7OLSmGrM1dNMKEH X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 spamscore=0 priorityscore=1501 mlxlogscore=764 phishscore=0 impostorscore=0 malwarescore=0 bulkscore=0 lowpriorityscore=0 adultscore=0 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401190000 definitions=main-2401260176 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1789199808965867408 X-GMAIL-MSGID: 1789199808965867408 The unflattened devicetree structure is available to be used not long after the page tables have been set up on most architectures, and is available even before that on other architectures. Hence, move the call to fdt_init_reserved_mem() to after unflatten_device_tree() is called so that the reserved memory nodes can be accessed using the unflattened device tree APIs. Using the unflattened devicetree APIs is more efficient than using the flattened devicetree APIs. Signed-off-by: Oreoluwa Babatunde --- arch/um/kernel/dtb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/um/kernel/dtb.c b/arch/um/kernel/dtb.c index 3ecee151a083..ad6003412319 100644 --- a/arch/um/kernel/dtb.c +++ b/arch/um/kernel/dtb.c @@ -27,8 +27,8 @@ void uml_dtb_init(void) } early_fdt_scan_reserved_mem(); - fdt_init_reserved_mem(); unflatten_device_tree(); + fdt_init_reserved_mem(); } static int __init uml_dtb_setup(char *line, int *add)