From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=115.124.28.172 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793848499; b=iIwPe8E20LaaAejyrlWJyMk9BE4GLf703f+WkRnNtcOpDGLv7nPqOEmrnDIO6NMqrBBA Bzxelatm6oj2WjWs5jfKKtjEhtNku6P/6RM2VQ8X/T1fiuPh3EjShkxmgDcnkJGYz2rw2 zVifjyWLxpAuXQYHVunQSrTuMcO9SMfR8u6uy1Tz1JDdp147PazgpkXDF/96LUerV245j X8fTMRfkoSe3Rp0TXcal2yo3AS7N57S5Rb0IU50Wpwl/HDAdvpgUHyIPMWzcKZ0qDwj+g 61bPr16bEevwdSBwSxaTWELdnirqT2LI5Z2UIUp50qxj31bJWBzY2Lp7Juy9SLD5gug== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793848499; h=DMARC-Filter:X-Alimail-AntiSpam:Received:From:To:Cc:Subject:Date: Message-Id:X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding; bh=zOO21uz9MwUO2eNDkgr3BLnA+IJI4wMV/UkAs/11CkE=; b=2PC0uORXBjf/nmTif4J2LHHIrJ+TLqoPXyJjxPfbuxX35dvr/Fp/YyQwtUn+jvqMQYOP 1xHnr4AD64r9NxXjLQEe4S4NaymheZ9t8xwDybfEET1uoKQKGKDr2GVMkS29Wc0jzhdLu WhnDcA9OUzJnsGv+Bb9RncWyrgw+BzjF76keO6eQhiyTvtGi9t4PMT1OR56KoUYFQ37aC dHIG18A8ewlc27bO+u3IsT/rOK/CzFukncnEo56iWIRnBtF+sP5ueHcXVhFV5Sy6LykZF MydqB1I/PWiDoLP2ymFaWXOF3LUAj0NcEK6KpiWaGO766ZWscqT3r7o5B8fmFJSKpOg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=motor-comm.com; spf=pass smtp.mailfrom=motor-comm.com; arc=none smtp.remote-ip=115.124.28.172 Received: from out28-172.mail.aliyun.com (out28-172.mail.aliyun.com [115.124.28.172]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D2C1A606A32E; Thu, 5 Nov 2026 03:14:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org D2C1A606A32E 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=0.07852332|-1;CH=green;DM=|CONTINUE|false|;DS=CONTINUE|ham_system_inform|0.00587506-7.46963e-05-0.99405;FP=11562893469595389074|0|0|0|0|-1|-1|-1;HT=maildocker-contentspam033071099199;MF=kyle.switch@motor-comm.com;NM=1;PH=DS;RN=16;RT=16;SR=0;TI=SMTPD_---.jx7-i0o_1793848491; Received: from motor-comm.com(mailfrom:kyle.switch@motor-comm.com fp:SMTPD_---.jx7-i0o_1793848491 cluster:ay29) by smtp.aliyun-inc.com; Thu, 05 Nov 2026 11:14:51 +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 v17 2/5] net: dsa: motorcomm: use max_ports in series for port bounds checking Date: Thu, 5 Nov 2026 11:14:39 +0800 Message-Id: <20261105031442.4164960-3-kyle.switch@motor-comm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20261105031442.4164960-1-kyle.switch@motor-comm.com> References: <20261105031442.4164960-1-kyle.switch@motor-comm.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list 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