netdev - Re: [PATCH net] device property: change device_get_phy

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Date:   Mon, 3 Feb 2020 08:16:32 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     kbuild-all@...ts.01.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ajay Gupta <ajayg@...dia.com>,
        "David S. Miller" <davem@...emloft.net>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Iyappan Subramanian <iyappan@...amperecomputing.com>,
        Keyur Chudgar <keyur@...amperecomputing.com>,
        Quan Nguyen <quan@...amperecomputing.com>,
        Steve Glendinning <steve.glendinning@...well.net>,
        Jassi Brar <jaswinder.singh@...aro.org>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Jose Abreu <joabreu@...opsys.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH net] device property: change device_get_phy_mode() to
 prevent signedess bugs

Hi Dan,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on net/master]
[also build test ERROR on driver-core/driver-core-testing linus/master v5.5 next-20200131]
[cannot apply to sparc-next/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/Dan-Carpenter/device-property-change-device_get_phy_mode-to-prevent-signedess-bugs/20200203-043126
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git b7c3a17c6062701d97a0959890a2c882bfaac537
config: x86_64-randconfig-s0-20200203 (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

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

All errors (new ones prefixed by >>):

>> drivers/phy/freescale/phy-fsl-imx8-mipi-dphy.c:110:12: error: conflicting types for 'phy_write'
    static int phy_write(struct phy *phy, u32 value, unsigned int reg)
               ^~~~~~~~~
   In file included from include/linux/property.h:15:0,
                    from include/linux/of.h:22,
                    from include/linux/clk-provider.h:9,
                    from drivers/phy/freescale/phy-fsl-imx8-mipi-dphy.c:8:
   include/linux/phy.h:730:19: note: previous definition of 'phy_write' was here
    static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
                      ^~~~~~~~~

vim +/phy_write +110 drivers/phy/freescale/phy-fsl-imx8-mipi-dphy.c

f4c8116e294b12 Guido Günther 2019-06-20  109  
f4c8116e294b12 Guido Günther 2019-06-20 @110  static int phy_write(struct phy *phy, u32 value, unsigned int reg)
f4c8116e294b12 Guido Günther 2019-06-20  111  {
f4c8116e294b12 Guido Günther 2019-06-20  112  	struct mixel_dphy_priv *priv = phy_get_drvdata(phy);
f4c8116e294b12 Guido Günther 2019-06-20  113  	int ret;
f4c8116e294b12 Guido Günther 2019-06-20  114  
f4c8116e294b12 Guido Günther 2019-06-20  115  	ret = regmap_write(priv->regmap, reg, value);
f4c8116e294b12 Guido Günther 2019-06-20  116  	if (ret < 0)
f4c8116e294b12 Guido Günther 2019-06-20  117  		dev_err(&phy->dev, "Failed to write DPHY reg %d: %d\n", reg,
f4c8116e294b12 Guido Günther 2019-06-20  118  			ret);
f4c8116e294b12 Guido Günther 2019-06-20  119  	return ret;
f4c8116e294b12 Guido Günther 2019-06-20  120  }
f4c8116e294b12 Guido Günther 2019-06-20  121  

:::::: The code at line 110 was first introduced by commit
:::::: f4c8116e294b12c360b724173f4b79f232573fb1 phy: Add driver for mixel mipi dphy found on NXP's i.MX8 SoCs

:::::: TO: Guido Günther <agx@...xcpu.org>
:::::: CC: Kishon Vijay Abraham I <kishon@...com>

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