From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout-03.galae.net (smtpout-03.galae.net [185.246.85.4]) (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 2E093472764 for ; Wed, 1 Jul 2026 11:04:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.246.85.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782903900; cv=none; b=KcUQyUqLA95L9LQV7XwrMbAkWqv98A4girBQ6C4MTruH55JXGhyMsvxf+bM2BNxeHLMD0bHib+D2pFQ34HvdAOQcmivieHvEO0r4oNAVxku6w/W7E80QIEv2bNYGyXbQ2Fh/c2Ef6huSXJ4jfXSx0RL6HfT5hoOaDa7IC2tMwvI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782903900; c=relaxed/simple; bh=MpiyDkp1X53C98IvLAeBokmGvdAtST/aNJy9XBCWoys=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PwzfciOVIAuOmlHYK3Arqd5dU9H22ePzTtA1eiTiCn2N5DdhYXupwzESoWEj2W7SQP2VU0kWhtPUcu6TZY1pxEmcaCNJmWF5r/0L6HIGEeqNiXUKQPAvk9sbiKGrE5Klo6Lz5UT/Z0uKD5LXjeai4U6WVUp5oLBoPAH8XbtmREo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=bCMNfgzc; arc=none smtp.client-ip=185.246.85.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="bCMNfgzc" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-03.galae.net (Postfix) with ESMTPS id DB56E4E40BE3; Wed, 1 Jul 2026 11:04:57 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id A83C760288; Wed, 1 Jul 2026 11:04:57 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id DC9B8104C9E12; Wed, 1 Jul 2026 13:04:53 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1782903896; h=from:subject:date:message-id:to:cc:mime-version: content-transfer-encoding:in-reply-to:references; bh=HJSj0+hWeYwlZOA+WqPDczY1e7Nz+sg4LAnrwkSTI20=; b=bCMNfgzcI0CFjG3XaD3oxEd9fTLaeGyCfwMQv59ILsywHxT9cYpwuE/maz5UhR7737ZPRf 7V7MtjuBetybTOo3Ad/5WhMZuK1y8bYwS/rBy73jXjseVLS/m3fzp8SL93FsNPTfRbIRsB ECiBMR1g+CeMBkBGIX46f33LnpSgXXuPbjQOJQ/YVl8az/1gmtTktK2/S1PUB3qLLHLMFq uSUAjhBy69ywyveiBihCCPDVctKR55ToR9LmOndyUtMlLSwzB2Y6EsNTXFYUNRdLyHAbWj UAz/r64zC5RtMCjUF120BwtRszQHgQvRbdunIWWF6usS2oJD8oi8W0XoX47EgQ== From: Maxime Chevallier To: davem@davemloft.net, Andrew Lunn , Jakub Kicinski , Eric Dumazet , Paolo Abeni , Russell King , Heiner Kallweit Cc: Maxime Chevallier , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, thomas.petazzoni@bootlin.com, Christophe Leroy , Herve Codina , Florian Fainelli , Vladimir Oltean , =?UTF-8?q?K=C3=B6ry=20Maincent?= , =?UTF-8?q?Marek=20Beh=C3=BAn?= , Oleksij Rempel , =?UTF-8?q?Nicol=C3=B2=20Veronese?= , Simon Horman , mwojtas@chromium.org, Romain Gantois , Daniel Golle , Dimitri Fedrau , Frank Wunderlich Subject: [PATCH net-next v13 07/10] net: phy: phy_link_topology: Add a helper to retrieve ports Date: Wed, 1 Jul 2026 13:04:23 +0200 Message-ID: <20260701110427.143945-8-maxime.chevallier@bootlin.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260701110427.143945-1-maxime.chevallier@bootlin.com> References: <20260701110427.143945-1-maxime.chevallier@bootlin.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Last-TLS-Session-Version: TLSv1.3 In order to allow netlink access to phy_ports, let's add a helper to retrieve them. When handling a port coming from phy_link_topology, the caller must hold rtnl until it's done with it. Reviewed-by: Andrew Lunn Signed-off-by: Maxime Chevallier --- include/linux/phy_link_topology.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/include/linux/phy_link_topology.h b/include/linux/phy_link_topology.h index 296ee514ba46..95629112204e 100644 --- a/include/linux/phy_link_topology.h +++ b/include/linux/phy_link_topology.h @@ -13,6 +13,7 @@ #include #include +#include struct xarray; struct phy_device; @@ -71,6 +72,20 @@ phy_link_topo_get_phy(struct net_device *dev, u32 phyindex) return NULL; } +static inline struct phy_port * +phy_link_topo_get_port(struct net_device *dev, u32 port_id) +{ + struct phy_link_topology *topo = dev->link_topo; + + ASSERT_RTNL(); + + if (!topo) + return NULL; + + /* Caller must hold RTNL while handling the phy_port */ + return xa_load(&topo->ports, port_id); +} + #else static inline int phy_link_topo_add_phy(struct net_device *dev, struct phy_device *phy, @@ -100,6 +115,12 @@ phy_link_topo_get_phy(struct net_device *dev, u32 phyindex) { return NULL; } + +static inline struct phy_port * +phy_link_topo_get_port(struct net_device *dev, u32 port_id) +{ + return NULL; +} #endif #endif /* __PHY_LINK_TOPOLOGY_H */ -- 2.54.0