From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f46.google.com (mail-wm1-f46.google.com [209.85.128.46]) (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 83D022D879E for ; Sat, 25 Oct 2025 18:49:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.46 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761418196; cv=none; b=GzvIVAN2phFg4cp6aIG4xEU8OCAret2XuD+2Qi0aXcXII8G3/yDVhI0Pv/UTiVVpzGM9mPqD7zQzfyXbFn4HQRMTzaiqlPSrVsbhnlspn6sWoF4u5OuJ/hAk7ssyrKbJ4Gk5jkL1CJr9JDvla3f4DLF8Ptg13Cx0jJDhfilmjDE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761418196; c=relaxed/simple; bh=1c8VwZwCLQgKitT09IMgpoLdbo8O8tL2/Cjsynfmiis=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=eB6f35umjog3S1NvycuzdLdJCWwHOBy4aDRXQKDZeS9j8azTrB55n7HJs+6a3a+6Kel43hiJtbW3DgxP8oC04dxwub5rzlg8GOOcPxRcad/83bDUqJXYZ5xytQechoYOWUFrur4qHunegCcUd6h50ZcYCo+VMFz9IKX80bUAhSI= 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=ca3NAAkW; arc=none smtp.client-ip=209.85.128.46 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="ca3NAAkW" Received: by mail-wm1-f46.google.com with SMTP id 5b1f17b1804b1-475dae5d473so9026135e9.2 for ; Sat, 25 Oct 2025 11:49:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1761418193; x=1762022993; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:content-language:references :cc:to:from:subject:user-agent:mime-version:date:message-id:from:to :cc:subject:date:message-id:reply-to; bh=YOP1Dq47ETt740QI5S9S9RVh1nYdnTXk8kdvsRVfgJc=; b=ca3NAAkWkdg+Ph+CIgrAy43Fgad3W/eugC+H++UsA0R3k3diAdYU4qr4bqsJGUzIMv wwg8hhVXqFKQ3i7wvRuH3uL1jLzG64E+PvL1+POvaYzMUR2XkPkItXpJMCiyHwDWKYgF MsabGKpmTtvEiR58Grbvy0gND2GHJLOPhcOLvQt82ADXzZnzLGI6CHMd1mlE65AdVP/N BjlVFUoNNcZSZYKjsSWPoQ8FicBaiBt4aPmV6OwVqoshpdmQ9yUs7a4Zp9scaZ2fxM8X 6Lx0TcsuGmf/XdQAK3H65jRHDLtsSFd5bmWuL+y2UxtBnw29zbE/2qTcWvnXLYOGJA4K 2UUA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761418193; x=1762022993; h=content-transfer-encoding:in-reply-to:content-language:references :cc:to:from:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=YOP1Dq47ETt740QI5S9S9RVh1nYdnTXk8kdvsRVfgJc=; b=LFJm1jNdqOVqfoCYBVWthVuH5dmSUjki/JfPT1SQMzkXFYUeM+htJN5NvlX4M2KPyk iVCdFbxIH+z0WAjefPqta3s2lCPSl650GxzzTxGHipnhPKMMvEttGO9RYCAhA7trn61R N5Q9lq/2FUCbBIB5iSwwdVSq0TvYq+6bjtsqOmIEl7V4g8J5J7gD6UvC4RlI7A5nzmRT V4rzJ1E8+2NCU1Gr/Er3Wa5kO/LnAHRlf3xSOKC4A50B8GdyNEqspIkN+3s+0ccmviGP xku8VG5RRZf9hv+iG4l8MTflCarJaATC5zPOrZxj2Ldn6HFxY4gqaHG82lb5fUghqNIq kIBg== X-Forwarded-Encrypted: i=1; AJvYcCV4hU+2E1JQqN1fUVB/A9uOnrBHxE3zgQrLBEsbJO0yDZMDs08iKtHYluB3Nr7r5xnZj8cpDZpVZyyA@vger.kernel.org X-Gm-Message-State: AOJu0YxHd/qfnkmmHmAaaCxdyfZ33U55J1/dhp6bIM5407Eq1KLBRstT TjTDK68VowRwsL6a2/LeQorCmMdEGb/HL6HqUF3H4Dsn/ZaB8tH+Y+sc X-Gm-Gg: ASbGncu8TFEvnKy2MooA7bQJ4/GjdAzFYJKcgSNpPfTKpwOWBO7NIMCEvR+eZ9HLnm7 XC/0Y4rC13ZsBGTXT12jveCCZhJHNufTnFzqx+XdoDVsYQYKjMTDCACE+FluHyqYLlthGW3f6G7 i6HyGwh18zUhroSgSMd+8oLsd7iuDRqvpqMOQaoqxzrSpc3ergCVHJT2sTLJPNj+sgZTVp5X9KG Z7TtZQAeMstVaChLc5yOLurd+/Z2RcHIlbC9rD/gpc21AcUAV/U76XL58KYW8R2SoY//yM1uHx/ GRBEGZ+NU7+ub5ofi5snGQFWaSOe62idqzLAhtzdlJBbOBQnqsE8KD8R4Y4nzGtq7RRwyyii4xZ 1kjGn8BjAARLfQGiyWrX3fYqka/eBFykRTKZ90CBIZE74aoFJvLEJtEuVdWXcFXqupwzfr1gHO6 h1Zyumkxwl/heHoXOd6/8b5iseA6/fAxaa+i03UyTv/8a6IAKH66FUtutSUNQ2U/fh0m3Uf/xSM /HVTWKDY8kvjYH9l340SZ7oLW7DyeIRxTI/D5qEKdSpyZ9CLoSc7A== X-Google-Smtp-Source: AGHT+IGg1HBIr268jUp/OkiHLu7m8BYHJzQgps2UOW+w9yzyN2Jc6WgsG9eUuNap4D78HMtAusreFQ== X-Received: by 2002:a05:600c:4f09:b0:475:de14:db25 with SMTP id 5b1f17b1804b1-475de14dc59mr17418675e9.28.1761418192733; Sat, 25 Oct 2025 11:49:52 -0700 (PDT) Received: from ?IPV6:2003:ea:8f39:8b00:d401:6211:9005:e76e? (p200300ea8f398b00d40162119005e76e.dip0.t-ipconnect.de. [2003:ea:8f39:8b00:d401:6211:9005:e76e]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-429952b7b22sm4903790f8f.9.2025.10.25.11.49.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 25 Oct 2025 11:49:52 -0700 (PDT) Message-ID: Date: Sat, 25 Oct 2025 20:49:50 +0200 Precedence: bulk X-Mailing-List: linux-omap@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH v3 net-next 1/4] net: phy: add iterator mdiobus_for_each_phy From: Heiner Kallweit To: Wei Fang , Shenwei Wang , Clark Wang , Siddharth Vadapalli , Roger Quadros , Andrew Lunn , Andrew Lunn , Russell King - ARM Linux , Paolo Abeni , Jakub Kicinski , Eric Dumazet , David Miller Cc: "netdev@vger.kernel.org" , linux-omap@vger.kernel.org, imx@lists.linux.dev References: <07fc63e8-53fd-46aa-853e-96187bba9d44@gmail.com> Content-Language: en-US In-Reply-To: <07fc63e8-53fd-46aa-853e-96187bba9d44@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Add an iterator for all PHY's on a MII bus, and phy_find_next() as a prerequisite. Signed-off-by: Heiner Kallweit --- v3: - add missing return value description for phy_find_next --- drivers/net/phy/phy_device.c | 16 +++++++++------- include/linux/phy.h | 11 ++++++++++- 2 files changed, 19 insertions(+), 8 deletions(-) diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 7a67c900e..c4fbacbc3 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -1214,22 +1214,24 @@ int phy_get_c45_ids(struct phy_device *phydev) EXPORT_SYMBOL(phy_get_c45_ids); /** - * phy_find_first - finds the first PHY device on the bus + * phy_find_next - finds the next PHY device on the bus * @bus: the target MII bus + * @pos: cursor + * + * Return: next phy_device on the bus, or NULL */ -struct phy_device *phy_find_first(struct mii_bus *bus) +struct phy_device *phy_find_next(struct mii_bus *bus, struct phy_device *pos) { - struct phy_device *phydev; - int addr; + for (int addr = pos ? pos->mdio.addr + 1 : 0; + addr < PHY_MAX_ADDR; addr++) { + struct phy_device *phydev = mdiobus_get_phy(bus, addr); - for (addr = 0; addr < PHY_MAX_ADDR; addr++) { - phydev = mdiobus_get_phy(bus, addr); if (phydev) return phydev; } return NULL; } -EXPORT_SYMBOL(phy_find_first); +EXPORT_SYMBOL_GPL(phy_find_next); /** * phy_prepare_link - prepares the PHY layer to monitor link status diff --git a/include/linux/phy.h b/include/linux/phy.h index 3c7634482..3809ca705 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -1848,7 +1848,7 @@ int phy_sfp_probe(struct phy_device *phydev, const struct sfp_upstream_ops *ops); struct phy_device *phy_attach(struct net_device *dev, const char *bus_id, phy_interface_t interface); -struct phy_device *phy_find_first(struct mii_bus *bus); +struct phy_device *phy_find_next(struct mii_bus *bus, struct phy_device *pos); int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, u32 flags, phy_interface_t interface); int phy_connect_direct(struct net_device *dev, struct phy_device *phydev, @@ -1875,6 +1875,15 @@ bool phy_check_valid(int speed, int duplex, unsigned long *features); int phy_restart_aneg(struct phy_device *phydev); int phy_reset_after_clk_enable(struct phy_device *phydev); +static inline struct phy_device *phy_find_first(struct mii_bus *bus) +{ + return phy_find_next(bus, NULL); +} + +#define mdiobus_for_each_phy(_bus, _phydev) \ + for (_phydev = phy_find_first(_bus); _phydev; \ + _phydev = phy_find_next(_bus, _phydev)) + #if IS_ENABLED(CONFIG_PHYLIB) int phy_start_cable_test(struct phy_device *phydev, struct netlink_ext_ack *extack); -- 2.51.1