From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out28-75.mail.aliyun.com (out28-75.mail.aliyun.com [115.124.28.75]) (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 7BAC3339389; Tue, 13 Oct 2026 01:11:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.28.75 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791853895; cv=none; b=V9aE8cQ0Gx4tphhY+E7Um69NrDa+UiOnOW/uvCV6OousV3QDbSS6eEXi6fAYmyiMkjlFvz0/NQDZw0l7GJD3HVRC7wr3NREb3m0VYYskVBBstfnQXrbWXnoIFj1ObuLHcOiUw5CDIGknCPECw3/MGsOSCv10AJ65Tr7L4iu9pI8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791853895; c=relaxed/simple; bh=MGJ0OTCxFGVmbf92zNCab8ppSblh9l9H3JItFIKGrWA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=qi+ZHozLWWyjB9TYv+RcAL8wUGxOY80XMTx0Fn5cSgNfCG0xuOjhBCNo1o1prtORS2n+C/C/5CATGsHXSmcGjuhHHfU9l+QhSv3FnoD+01dlnmoX8mq3Xb1p1QsL6wmBLLdSASfAI/oDa3L7KsZXplJQIEBdxJYaSf1/3vruHXg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=motor-comm.com; spf=pass smtp.mailfrom=motor-comm.com; arc=none smtp.client-ip=115.124.28.75 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=motor-comm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=motor-comm.com X-Alimail-AntiSpam:AC=CONTINUE;BC=0.0789497|-1;CH=green;DM=|CONTINUE|false|;DS=CONTINUE|ham_system_inform|0.00587506-7.46963e-05-0.99405;FP=11562893469595389590|14|2|17|0|-1|-1|-1;HT=maildocker-contentspam033068016216;MF=kyle.switch@motor-comm.com;NM=1;PH=DS;RN=16;RT=16;SR=0;TI=SMTPD_---.jatt1H5_1791853888; Received: from motor-comm.com(mailfrom:kyle.switch@motor-comm.com fp:SMTPD_---.jatt1H5_1791853888 cluster:ay29) by smtp.aliyun-inc.com; Tue, 13 Oct 2026 09:11:29 +0800 From: Kyle Switch To: andrew@lunn.ch, olteanv@gmail.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, mmyangfl@gmail.com, horms@kernel.org, linux@armlinux.org.uk, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: ming.xu@motor-comm.com, xiaolin.xu@motor-comm.com, jianmin.wang@motor-comm.com, wei.zhang@gl-inet.com, sijia.huang@gl-inet.com Subject: [PATCH net-next v14 2/5] net: dsa: motorcomm: use max_ports in series for port bounds checking Date: Tue, 13 Oct 2026 09:11:19 +0800 Message-Id: <20261013011122.1889766-3-kyle.switch@motor-comm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20261013011122.1889766-1-kyle.switch@motor-comm.com> References: <20261013011122.1889766-1-kyle.switch@motor-comm.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Replace the hardcoded YT921X_PORT_NUM macro with the per-series max_ports field in port validation. This removes family-specific constants from the common code path and simplifies adding new switch families with different port counts. No functional change for existing YT921X devices. Reviewed-by: Andrew Lunn Signed-off-by: Kyle Switch --- drivers/net/dsa/motorcomm/mdio_bus.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/net/dsa/motorcomm/mdio_bus.c b/drivers/net/dsa/motorcomm/mdio_bus.c index dd6c52f37bbf..83f0212551ff 100644 --- a/drivers/net/dsa/motorcomm/mdio_bus.c +++ b/drivers/net/dsa/motorcomm/mdio_bus.c @@ -113,7 +113,7 @@ static int yt921x_mbus_int_read(struct mii_bus *mbus, int port, int reg) u16 val; int res; - if (port >= YT921X_PORT_NUM) + if (port >= priv->series->max_ports) return U16_MAX; mutex_lock(&priv->reg_lock); @@ -131,7 +131,7 @@ yt921x_mbus_int_write(struct mii_bus *mbus, int port, int reg, u16 data) struct yt921x_priv *priv = mbus->priv; int res; - if (port >= YT921X_PORT_NUM) + if (port >= priv->series->max_ports) return -ENODEV; mutex_lock(&priv->reg_lock); @@ -145,6 +145,7 @@ int yt921x_mbus_int_init(struct yt921x_priv *priv, struct device_node *mnp) { struct device *dev = yt921x_priv_to_device(priv); struct mii_bus *mbus; + u32 max_ports; int res; mbus = devm_mdiobus_alloc(dev); @@ -157,7 +158,8 @@ int yt921x_mbus_int_init(struct yt921x_priv *priv, struct device_node *mnp) mbus->read = yt921x_mbus_int_read; mbus->write = yt921x_mbus_int_write; mbus->parent = dev; - mbus->phy_mask = (u32)~GENMASK(YT921X_PORT_NUM - 1, 0); + max_ports = priv->series->max_ports; + mbus->phy_mask = (u32)~GENMASK(max_ports - 1, 0); res = devm_of_mdiobus_register(dev, mbus, mnp); if (res) -- 2.25.1