linux-kernel - Re: [PATCH 2/6] net: bcmgenet: refactor phy mode configuration

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Message-ID: <202002060443.937aTdBH%lkp@intel.com>
Date:   Thu, 6 Feb 2020 05:05:10 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Jeremy Linton <jeremy.linton@....com>
Cc:     kbuild-all@...ts.01.org, netdev@...r.kernel.org, opendmb@...il.com,
        f.fainelli@...il.com, davem@...emloft.net,
        bcm-kernel-feedback-list@...adcom.com,
        linux-kernel@...r.kernel.org, wahrenst@....net, andrew@...n.ch,
        hkallweit1@...il.com, Jeremy Linton <jeremy.linton@....com>
Subject: Re: [PATCH 2/6] net: bcmgenet: refactor phy mode configuration

Hi Jeremy,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on v5.5]
[also build test WARNING on next-20200205]
[cannot apply to net/master net-next/master linus/master ipvs/master]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Jeremy-Linton/Add-ACPI-bindings-to-the-genet/20200203-101928
base:    d5226fa6dbae0569ee43ecfc08bdcd6770fc4755

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

smatch warnings:
drivers/net/ethernet/broadcom/genet/bcmmii.c:485 bcmgenet_phy_interface_init() warn: unsigned 'priv->phy_interface' is never less than zero.

vim +485 drivers/net/ethernet/broadcom/genet/bcmmii.c

   479	
   480	static int bcmgenet_phy_interface_init(struct bcmgenet_priv *priv)
   481	{
   482		struct device *kdev = &priv->pdev->dev;
   483	
   484		priv->phy_interface = device_get_phy_mode(kdev);
 > 485		if (priv->phy_interface < 0) {
   486			dev_dbg(kdev, "invalid PHY mode property\n");
   487			priv->phy_interface = PHY_INTERFACE_MODE_RGMII;
   488		}
   489	
   490		/* We need to specifically look up whether this PHY interface is internal
   491		 * or not *before* we even try to probe the PHY driver over MDIO as we
   492		 * may have shut down the internal PHY for power saving purposes.
   493		 */
   494		if (priv->phy_interface == PHY_INTERFACE_MODE_INTERNAL)
   495			priv->internal_phy = true;
   496	
   497		return 0;
   498	}
   499	

---
0-DAY kernel test infrastructure                 Open Source Technology Center
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