From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) (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 4025940757B for ; Mon, 15 Jun 2026 15:39:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.171.202.116 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781537982; cv=none; b=F71vzvMbhe6CGZxi96/zGpfemFBzL5n+zXPhqXVvRlRkTm/rz+PB9GenA324E26P+KQAT9ISdrhxZKQ1CK4xknirFjY72MiWtmi9yvuCETN0BNe3Hf3ej1Xw9EPA6xCZsmPMmcLwRSSFp7t6WwDzLIA1bU3Za5h2dzzwI1ShQZc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781537982; c=relaxed/simple; bh=MpiyDkp1X53C98IvLAeBokmGvdAtST/aNJy9XBCWoys=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MLEOWRavgFJF1RgBPIIrjyiWNYIf64pCignxRI8N21JkjPd48sCJFeu7jptE5qk2T4B+ViY5ToK/HyyDGfpQ/iTmLRE5qfAKCpVraSzyZS7bW6K24HAFgGo1gIG8cuoq+U01pMltNEm+VKkjU47Orm66wwa4b3tmVZMCYvWrCoo= 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=llxmBf5o; arc=none smtp.client-ip=185.171.202.116 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="llxmBf5o" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id 244E9C51474; Mon, 15 Jun 2026 15:39:44 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id EF88960015; Mon, 15 Jun 2026 15:39:39 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id E2C3A106C9731; Mon, 15 Jun 2026 17:39:35 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1781537978; h=from:subject:date:message-id:to:cc:mime-version: content-transfer-encoding:in-reply-to:references; bh=HJSj0+hWeYwlZOA+WqPDczY1e7Nz+sg4LAnrwkSTI20=; b=llxmBf5oEBeXzwcoiXzX+OKJpmbUpcXDkvV9kQemUjNZEp/pzFwsVu8Q+KUEu6YePgSCc4 ferR5B8TpRalYbyI6xO7NGn0Me20aw3ALPV4pW46tgVRfWFU7LPsNH/jrTmCNurM5NIIHX JJeaGo0fb4g3IRk1kbpQBoIk6EodmJ5CRUyv9EpQnb51w4eZTcwQF4NILTWHl59MN0eeNx szYmbGQJXGxMQ31R7s1EavokFLUz+/SyLGAZcI3HUh45RXnc8pZ4TN6knRGQlt1LmVblOE RnEirHlmWGL3DPwO95HIYUfPl4hGdW5CYxMHJvaFUQ3Y4gjHNdpE1z/ATvQLdA== 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 v12 07/10] net: phy: phy_link_topology: Add a helper to retrieve ports Date: Mon, 15 Jun 2026 17:39:03 +0200 Message-ID: <20260615153907.862987-8-maxime.chevallier@bootlin.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260615153907.862987-1-maxime.chevallier@bootlin.com> References: <20260615153907.862987-1-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