From nobody Sun Feb 8 16:24:27 2026 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 9D47522D7B6; Sun, 1 Feb 2026 15:13:35 +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=1769958820; cv=none; b=uko5AR5KFpiCrUD0yCnrKy94kV/WUIxv3BJj+WenLzlpZzawiHmDcnya7uWMVgj+BI9A1rDE9JrNnrTPb3URxX9L9mCJMMRrZmGeiCKX5HYdKkCXZrTaSJfSWhaR55AJ24e8NyiIk5mXpsnHCsJ3OtG8+gf96BXI5WUfgvRZilk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769958820; c=relaxed/simple; bh=o4C5JoFvdaKbDLz0PCFiqU8VJ+VNFNhbpi6kQWKE2GY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=TV8IhXmHISxTdD2T9KGaIAAlFh9ZX014Nd0VjM2E0kwh+NqHtGtnRMvVNV1GOWMO6zYss/7rlo7HXv5qGF6MpTCGXeyCuUnM5I6BgBmjo5lnWpFuwWjh6/2Lqi3vAkUM94w7m3hrG5z0UAA7jQQqzE5JYBmIvNwAyaHqwtXMXkE= 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=tKqSmm+f; 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="tKqSmm+f" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-03.galae.net (Postfix) with ESMTPS id 2B4274E423A7; Sun, 1 Feb 2026 15:13:34 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id F271A60720; Sun, 1 Feb 2026 15:13:33 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 310F1119A88FE; Sun, 1 Feb 2026 16:13:30 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1769958812; h=from:subject:date:message-id:to:cc:mime-version: content-transfer-encoding:in-reply-to:references; bh=3JyNXaJPV1JN+oROG8njfZR+nQrPMM6HIkQN7k5HMQU=; b=tKqSmm+fZDn2K/P4HbFn1x6uxvZRNsZiUW3+QpxhHoYJFF5AkKGOGraJK6G5fKveaTHj5k Ur35Lk2YOZkQGTt+OK3D2sBMr15PMUQ5/fv1ZX2ij0wvMBDkFNyquGNtfO/S6H38cEWss5 Z3MNcJ7yZxXpQX5G1I0vT9mzwxHYSjH3h7zX6D27t+lGhfmNuVnja+2NUy4MWvPtpt2duX b4LskC8eYAuIUIwY7KQDkEnIluGWjBl8BIsHla2T907qGYZqWfVlIJFEjGrPK5d43bp2aM TB1VMVFt2cQ9ifLSj/0PBdsxvDGjPleIT/WuJixLUUQ0+nNFSlnz/TCmwE2Cjw== 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 Subject: [PATCH net-next v3 09/11] net: phy: phy_link_topology: Add a helper to retrieve ports Date: Sun, 1 Feb 2026 16:12:46 +0100 Message-ID: <20260201151249.642015-10-maxime.chevallier@bootlin.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20260201151249.642015-1-maxime.chevallier@bootlin.com> References: <20260201151249.642015-1-maxime.chevallier@bootlin.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Last-TLS-Session-Version: TLSv1.3 Content-Type: text/plain; charset="utf-8" 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. Signed-off-by: Maxime Chevallier --- include/linux/phy_link_topology.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/include/linux/phy_link_topology.h b/include/linux/phy_link_top= ology.h index 66bceff72b19..b05858086e42 100644 --- a/include/linux/phy_link_topology.h +++ b/include/linux/phy_link_topology.h @@ -66,6 +66,17 @@ phy_link_topo_get_phy(struct net_device *dev, u32 phyind= ex) return NULL; } =20 +static inline struct phy_port * +phy_link_topo_get_port(struct net_device *dev, u32 port_id) +{ + struct phy_link_topology *topo =3D dev->link_topo; + + if (!topo) + return NULL; + + return xa_load(&topo->ports, port_id); +} + #else static inline int phy_link_topo_add_phy(struct net_device *dev, struct phy_device *phy, @@ -95,6 +106,12 @@ phy_link_topo_get_phy(struct net_device *dev, u32 phyin= dex) { return NULL; } + +static inline struct phy_port * +phy_link_topo_get_port(struct net_device *dev, u32 port_id) +{ + return NULL; +} #endif =20 #endif /* __PHY_LINK_TOPOLOGY_H */ --=20 2.49.0