From patchwork Sun Jul 21 15:19:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Javier Carrasco X-Patchwork-Id: 814013 Received: from mail-ed1-f51.google.com (mail-ed1-f51.google.com [209.85.208.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A020416C440; Sun, 21 Jul 2024 15:19:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721575175; cv=none; b=CnLaCkVd4Dtgf3uXBp9z+L+bOcb4VVb/8rhegIwaZXcqDnOKQg6wkPUAXHRRxpjShKig0gI5zGC1uVtzvcnn30JJEqqf4G0EoNCcvWip6wseptyz+H4+MspNPz5MmTSx4r8k1IkcNpZJ+nTKvz4dm25ESaq8nBKe3MGVhvUBylY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721575175; c=relaxed/simple; bh=7OWJetluoWS/Nf5AUxollSLUqkLBtNYzuJKo21kzZoM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=M/zUGRATrRewvZsMmLFouAhpxuVpwGM8eaNyh43cItGRFr10HLuGHDVVnSu+yl6+aFZmR2+1li6q55lnB+5PbFpFXPoHQeEST4O0QRDYx/q/Oe6woTHq0Q5pQSJs40Oo5MUUV+ag8oA/ATzbXa1SnXGNZ7jq2TMod52EpLnzL6g= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=GO7JI9dD; arc=none smtp.client-ip=209.85.208.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="GO7JI9dD" Received: by mail-ed1-f51.google.com with SMTP id 4fb4d7f45d1cf-59f9f59b827so2851008a12.1; Sun, 21 Jul 2024 08:19:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1721575172; x=1722179972; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=vWxQDkg0tjoveNQoAFF0zn3+Cul5K66566bw3Hq4SzU=; b=GO7JI9dDutHPHIPdTGjB5AdkL8QSL9z73dWvASktSLLjvYR8F80SYLYSXu4/q/tOqs N0w+mi8R6xnm2BqKgavgIiASf04RDNpKrmwllshTg8ldSLXF5KTDbeaDalx0/PwCR/hE vMT/fmsqloyLeSfbOc37IFYV129Mj/gE3aRLCYEC0Ggkh8eszlObJwXQCDCIEnXI8++7 PbOAUNodDwaBX0ZKZUiU6fn2JC6EtZAEcHA3wk1975pKucj9eL90OG73A22fOweFHq8N rDqp3UrWW8JzC62MYXI0wUB/mJp9y84yt7as9L2AAfcf/m6ONOSYLJgaHaTbclix8pmU BqCA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721575172; x=1722179972; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=vWxQDkg0tjoveNQoAFF0zn3+Cul5K66566bw3Hq4SzU=; b=iki50d1tqffTpVvMjwVVNVcXv76DjI9HKgouZPnZlpNXgp60M6nqgC6L3Aw9LbN82U 1/vAa9KzI6tnQorDd9MQZxZKc3kNXA18e1qsXBO4Qdm5CsvXkH03+f2yaFTKTsiXw5ed VoPo5FfALrPWACE6Ppua1vG189mO1+cei0WPyJzKjdgmZtroXGGlkjQD4ZQeoACRzJyv ivIEoil9rJ+yp4WxCnyJNFQJUkuBNtmhG43XIVK6j7N3GqaOijr8XagBSqpksSFaQPsj jJItAWBXkhfmasK1noMpVZ0Bpt0asd4P8xgEgnnDWh6e7OMW7OD/J+p6jEMrfeQSxW7r lOGQ== X-Forwarded-Encrypted: i=1; AJvYcCVgmr5rqgSGz/TtL4+f1Epeo2ipMm4jUL1rOKAlQeWBwIxvcTUikwN3IrKoE6vSTaWHZkLTtK9bPBZbrNCg7a+hyy2XE11ISRWIdAK8o/YgJBGYF6NB7lIvLWsMJ/bj0/mWx8FzJwvCoMMXOcimnr0UY0gIE8nGott6X/r5qEdLiWfJyrR2LR/i639CVQGudz9mzQT0FoLhOpXD3YC9 X-Gm-Message-State: AOJu0YzahdMFJdjD+C8nF4D8Xl+7J4J8qCctqrW+IQ5BUVxjuRO4v6DZ DZBMllgk1s62GYEU7p54+hgR1Ec3iPqMp1WjO/T2aZ77uziRqxMc X-Google-Smtp-Source: AGHT+IEVeHfDmq5X+0n82+27QM8fwNYvFlhBRw++xiui7Q80c9Brz+8apBbPFsTFmQPHrqEaUNy4ng== X-Received: by 2002:a17:907:da1:b0:a77:d0a0:ea6d with SMTP id a640c23a62f3a-a7a4c011d3bmr308158566b.24.1721575171728; Sun, 21 Jul 2024 08:19:31 -0700 (PDT) Received: from [127.0.1.1] (2a02-8389-41cf-e200-859e-243c-21d1-9ff6.cable.dynamic.v6.surfer.at. [2a02:8389:41cf:e200:859e:243c:21d1:9ff6]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a7a3c78603dsm302270366b.8.2024.07.21.08.19.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 21 Jul 2024 08:19:31 -0700 (PDT) From: Javier Carrasco Date: Sun, 21 Jul 2024 17:19:06 +0200 Subject: [PATCH v2 6/6] net: mvpp2: use device_for_each_child_node() to access device child nodes Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240721-device_for_each_child_node-available-v2-6-f33748fd8b2d@gmail.com> References: <20240721-device_for_each_child_node-available-v2-0-f33748fd8b2d@gmail.com> In-Reply-To: <20240721-device_for_each_child_node-available-v2-0-f33748fd8b2d@gmail.com> To: Greg Kroah-Hartman , "Rafael J. Wysocki" , Andy Shevchenko , Jonathan Cameron , Rob Herring , Daniel Scally , Heikki Krogerus , Sakari Ailus , Jean Delvare , Guenter Roeck , Pavel Machek , Lee Jones , Marcin Wojtas , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andreas Kemnade Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-leds@vger.kernel.org, netdev@vger.kernel.org, Javier Carrasco , Jonathan Cameron X-Mailer: b4 0.14-dev X-Developer-Signature: v=1; a=ed25519-sha256; t=1721575158; l=3125; i=javier.carrasco.cruz@gmail.com; s=20240312; h=from:subject:message-id; bh=7OWJetluoWS/Nf5AUxollSLUqkLBtNYzuJKo21kzZoM=; b=iNMnJvDJavKxd/cTaIQ/wI2+FJ4kPjgO9E1eheuFfGi79xO65EgIuqoenEmedZS7dH91lzXQt cx1BbNkkjcQC1xfO4u/nxdT4RF3p6HMHZwvY1HQLTf43XhDgUcxjsIp X-Developer-Key: i=javier.carrasco.cruz@gmail.com; a=ed25519; pk=lzSIvIzMz0JhJrzLXI0HAdPwsNPSSmEn6RbS+PTS9aQ= The iterated nodes are direct children of the device node, and the `device_for_each_child_node()` macro accounts for child node availability. `fwnode_for_each_available_child_node()` is meant to access the child nodes of an fwnode, and therefore not direct child nodes of the device node. The child nodes within mvpp2_probe are not accessed outside the lopps, and the socped version of the macro can be used to automatically decrement the refcount on early exits. Use `device_for_each_child_node()` and its scoped variant to indicate device's direct child nodes. Reviewed-by: Jonathan Cameron Signed-off-by: Javier Carrasco --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index 8c45ad983abc..f123072b1f87 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -7417,8 +7417,6 @@ static int mvpp2_get_sram(struct platform_device *pdev, static int mvpp2_probe(struct platform_device *pdev) { - struct fwnode_handle *fwnode = pdev->dev.fwnode; - struct fwnode_handle *port_fwnode; struct mvpp2 *priv; struct resource *res; void __iomem *base; @@ -7591,7 +7589,7 @@ static int mvpp2_probe(struct platform_device *pdev) } /* Map DTS-active ports. Should be done before FIFO mvpp2_init */ - fwnode_for_each_available_child_node(fwnode, port_fwnode) { + device_for_each_child_node_scoped(&pdev->dev, port_fwnode) { if (!fwnode_property_read_u32(port_fwnode, "port-id", &i)) priv->port_map |= BIT(i); } @@ -7614,7 +7612,7 @@ static int mvpp2_probe(struct platform_device *pdev) goto err_axi_clk; /* Initialize ports */ - fwnode_for_each_available_child_node(fwnode, port_fwnode) { + device_for_each_child_node_scoped(&pdev->dev, port_fwnode) { err = mvpp2_port_probe(pdev, port_fwnode, priv); if (err < 0) goto err_port_probe; @@ -7653,10 +7651,8 @@ static int mvpp2_probe(struct platform_device *pdev) return 0; err_port_probe: - fwnode_handle_put(port_fwnode); - i = 0; - fwnode_for_each_available_child_node(fwnode, port_fwnode) { + device_for_each_child_node_scoped(&pdev->dev, port_fwnode) { if (priv->port_list[i]) mvpp2_port_remove(priv->port_list[i]); i++; @@ -7677,13 +7673,12 @@ static int mvpp2_probe(struct platform_device *pdev) static void mvpp2_remove(struct platform_device *pdev) { struct mvpp2 *priv = platform_get_drvdata(pdev); - struct fwnode_handle *fwnode = pdev->dev.fwnode; int i = 0, poolnum = MVPP2_BM_POOLS_NUM; struct fwnode_handle *port_fwnode; mvpp2_dbgfs_cleanup(priv); - fwnode_for_each_available_child_node(fwnode, port_fwnode) { + device_for_each_child_node(&pdev->dev, port_fwnode) { if (priv->port_list[i]) { mutex_destroy(&priv->port_list[i]->gather_stats_lock); mvpp2_port_remove(priv->port_list[i]);