netdev - Re: [PATCH net-next v2 3/3] net: dp83869: Add speed optimization feature

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Date:   Thu, 3 Sep 2020 12:10:56 +0800
From:   kernel test robot <lkp@...el.com>
To:     Dan Murphy <dmurphy@...com>, davem@...emloft.net, andrew@...n.ch,
        f.fainelli@...il.com, hkallweit1@...il.com
Cc:     kbuild-all@...ts.01.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Dan Murphy <dmurphy@...com>
Subject: Re: [PATCH net-next v2 3/3] net: dp83869: Add speed optimization
 feature

Hi Dan,

I love your patch! Perhaps something to improve:

[auto build test WARNING on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Dan-Murphy/DP83869-Feature-additions/20200903-043618
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git dc1a9bf2c8169d9f607502162af1858a73a18cb8
config: i386-randconfig-m021-20200902 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

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

smatch warnings:
drivers/net/phy/dp83869.c:669 dp83869_config_init() warn: inconsistent indenting

# https://github.com/0day-ci/linux/commit/307ae0a0e8406ceadb72d448df96322bbd23aa92
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Dan-Murphy/DP83869-Feature-additions/20200903-043618
git checkout 307ae0a0e8406ceadb72d448df96322bbd23aa92
vim +669 drivers/net/phy/dp83869.c

   662	
   663	static int dp83869_config_init(struct phy_device *phydev)
   664	{
   665		struct dp83869_private *dp83869 = phydev->priv;
   666		int ret, val;
   667	
   668	       /* Force speed optimization for the PHY even if it strapped */
 > 669	       ret = phy_modify(phydev, DP83869_CFG2, DP83869_DOWNSHIFT_EN,
   670	                        DP83869_DOWNSHIFT_EN);
   671	       if (ret)
   672	               return ret;
   673	
   674		ret = dp83869_configure_mode(phydev, dp83869);
   675		if (ret)
   676			return ret;
   677	
   678		/* Enable Interrupt output INT_OE in CFG4 register */
   679		if (phy_interrupt_is_valid(phydev)) {
   680			val = phy_read(phydev, DP83869_CFG4);
   681			val |= DP83869_INT_OE;
   682			phy_write(phydev, DP83869_CFG4, val);
   683		}
   684	
   685		if (dp83869->port_mirroring != DP83869_PORT_MIRRORING_KEEP)
   686			dp83869_config_port_mirroring(phydev);
   687	
   688		/* Clock output selection if muxing property is set */
   689		if (dp83869->clk_output_sel != DP83869_CLK_O_SEL_REF_CLK)
   690			ret = phy_modify_mmd(phydev,
   691					     DP83869_DEVADDR, DP83869_IO_MUX_CFG,
   692					     DP83869_IO_MUX_CFG_CLK_O_SEL_MASK,
   693					     dp83869->clk_output_sel <<
   694					     DP83869_IO_MUX_CFG_CLK_O_SEL_SHIFT);
   695	
   696		if (phy_interface_is_rgmii(phydev)) {
   697			ret = phy_write_mmd(phydev, DP83869_DEVADDR, DP83869_RGMIIDCTL,
   698					    dp83869->rx_int_delay |
   699				dp83869->tx_int_delay << DP83869_RGMII_CLK_DELAY_SHIFT);
   700			if (ret)
   701				return ret;
   702	
   703			val = phy_read_mmd(phydev, DP83869_DEVADDR, DP83869_RGMIICTL);
   704			val &= ~(DP83869_RGMII_TX_CLK_DELAY_EN |
   705				 DP83869_RGMII_RX_CLK_DELAY_EN);
   706	
   707			if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
   708				val |= (DP83869_RGMII_TX_CLK_DELAY_EN |
   709					DP83869_RGMII_RX_CLK_DELAY_EN);
   710	
   711			if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
   712				val |= DP83869_RGMII_TX_CLK_DELAY_EN;
   713	
   714			if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
   715				val |= DP83869_RGMII_RX_CLK_DELAY_EN;
   716	
   717			ret = phy_write_mmd(phydev, DP83869_DEVADDR, DP83869_RGMIICTL,
   718					    val);
   719		}
   720	
   721		return ret;
   722	}
   723	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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