Re: [PATCH net-next 3/3] net: phylink: simplify how SFP PHYs are attached

[kernel test robot <lkp@intel.com>]

Hi Russell,

kernel test robot noticed the following build warnings:

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

url:    https://github.com/intel-lab-lkp/linux/commits/Russell-King-Oracle/net-phylink-add-common-validation-for-sfp_select_interface/20241022-234251
base:   net-next/main
patch link:    https://lore.kernel.org/r/E1t3DSr-000Vxg-Qx%40rmk-PC.armlinux.org.uk
patch subject: [PATCH net-next 3/3] net: phylink: simplify how SFP PHYs are attached
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20241023/202410232116.IgRFPrAS-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241023/202410232116.IgRFPrAS-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410232116.IgRFPrAS-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/net/phy/phylink.c:3429:6: warning: unused variable 'ret' [-Wunused-variable]
    3429 |         int ret;
         |             ^~~
   1 warning generated.


vim +/ret +3429 drivers/net/phy/phylink.c

7adb5b2126bc013 Russell King          2019-12-11  3424  
ce0aa27ff3f68ed Russell King          2017-07-25  3425  static int phylink_sfp_connect_phy(void *upstream, struct phy_device *phy)
ce0aa27ff3f68ed Russell King          2017-07-25  3426  {
7e4183752735deb Baruch Siach          2018-10-03  3427  	struct phylink *pl = upstream;
7adb5b2126bc013 Russell King          2019-12-11  3428  	u8 mode;
938d44c2b502ba4 Russell King          2019-12-11 @3429  	int ret;
7e4183752735deb Baruch Siach          2018-10-03  3430  
52c956003a9d5bc Russell King          2019-12-11  3431  	/*
52c956003a9d5bc Russell King          2019-12-11  3432  	 * This is the new way of dealing with flow control for PHYs,
52c956003a9d5bc Russell King          2019-12-11  3433  	 * as described by Timur Tabi in commit 529ed1275263 ("net: phy:
52c956003a9d5bc Russell King          2019-12-11  3434  	 * phy drivers should not set SUPPORTED_[Asym_]Pause") except
52c956003a9d5bc Russell King          2019-12-11  3435  	 * using our validate call to the MAC, we rely upon the MAC
52c956003a9d5bc Russell King          2019-12-11  3436  	 * clearing the bits from both supported and advertising fields.
52c956003a9d5bc Russell King          2019-12-11  3437  	 */
52c956003a9d5bc Russell King          2019-12-11  3438  	phy_support_asym_pause(phy);
52c956003a9d5bc Russell King          2019-12-11  3439  
7adb5b2126bc013 Russell King          2019-12-11  3440  	if (phylink_phy_no_inband(phy))
7adb5b2126bc013 Russell King          2019-12-11  3441  		mode = MLO_AN_PHY;
7adb5b2126bc013 Russell King          2019-12-11  3442  	else
7adb5b2126bc013 Russell King          2019-12-11  3443  		mode = MLO_AN_INBAND;
7adb5b2126bc013 Russell King          2019-12-11  3444  
eca68a3c7d05b38 Marek Behún           2022-09-30  3445  	/* Set the PHY's host supported interfaces */
eca68a3c7d05b38 Marek Behún           2022-09-30  3446  	phy_interface_and(phy->host_interfaces, phylink_sfp_interfaces,
eca68a3c7d05b38 Marek Behún           2022-09-30  3447  			  pl->config->supported_interfaces);
eca68a3c7d05b38 Marek Behún           2022-09-30  3448  
52c956003a9d5bc Russell King          2019-12-11  3449  	/* Do the initial configuration */
e48bc58d0fa1e08 Russell King (Oracle  2024-10-22  3450) 	return phylink_sfp_config_phy(pl, mode, phy);
ce0aa27ff3f68ed Russell King          2017-07-25  3451  }
ce0aa27ff3f68ed Russell King          2017-07-25  3452  

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