[frank-w-bpi-r2-4.14:7.2-main 214/214] drivers/net/pcs/pcs-mtk-lynxi.c:477:6: warning: variable 'flags' set but not used

[frank-w-bpi-r2-4.14:7.2-main 214/214] drivers/net/pcs/pcs-mtk-lynxi.c:477:6: warning: variable 'flags' set but not used

[kernel test robot]

tree:   https://github.com/frank-w/BPI-R2-4.14 7.2-main
head:   27e8d41a42f73cb2b271df0e897e25224889f6d0
commit: ae0add9728693a0b083a8dbabbf6362e4282b91f [214/214] net: pcs: mtk-lynxi: add phya tx rx clock path
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20260925/202609252238.ooyASJLv-lkp@intel.com/config)
compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260925/202609252238.ooyASJLv-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/202609252238.ooyASJLv-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/net/pcs/pcs-mtk-lynxi.c:477:6: warning: variable 'flags' set but not used [-Wunused-but-set-variable]
     477 |         u32 flags = 0;
         |             ^
   1 warning generated.
--
>> drivers/net/ethernet/mediatek/mtk_eth_soc.c:5651:6: warning: variable 'flags' set but not used [-Wunused-but-set-variable]
    5651 |         u32 flags = 0;
         |             ^
   1 warning generated.


vim +/flags +477 drivers/net/pcs/pcs-mtk-lynxi.c

   468	
   469	#ifdef CONFIG_FWNODE_PCS
   470	static int mtk_pcs_lynxi_probe(struct platform_device *pdev)
   471	{
   472		struct device *dev = &pdev->dev;
   473		struct device_node *np = dev->of_node;
   474		struct mtk_pcs_lynxi *mpcs;
   475		struct phylink_pcs *pcs;
   476		struct regmap *regmap;
 > 477		u32 flags = 0;
   478	
   479		mpcs = devm_kzalloc(dev, sizeof(*mpcs), GFP_KERNEL);
   480		if (!mpcs)
   481			return -ENOMEM;
   482	
   483		mpcs->dev = dev;
   484		regmap = syscon_node_to_regmap(np->parent);
   485		if (IS_ERR(regmap))
   486			return PTR_ERR(regmap);
   487	
   488		if (of_property_read_bool(np->parent, "mediatek,phya_trx_ck"))
   489			flags |= MTK_SGMII_FLAG_PHYA_TRX_CK;
   490	
   491		if (of_parse_phandle(np->parent, "resets", 0)) {
   492			mpcs->rstc = of_reset_control_get_shared(np->parent, NULL);
   493			if (IS_ERR(mpcs->rstc))
   494				return PTR_ERR(mpcs->rstc);
   495		} else
   496			mpcs->rstc = NULL;
   497	
   498		reset_control_deassert(mpcs->rstc);
   499		mpcs->sgmii_sel = devm_clk_get_enabled(dev, "sgmii_sel");
   500		if (IS_ERR(mpcs->sgmii_sel))
   501			return PTR_ERR(mpcs->sgmii_sel);
   502	
   503		mpcs->sgmii_rx = devm_clk_get(dev, "sgmii_rx");
   504		if (IS_ERR(mpcs->sgmii_rx))
   505			return PTR_ERR(mpcs->sgmii_rx);
   506	
   507		mpcs->sgmii_tx = devm_clk_get(dev, "sgmii_tx");
   508		if (IS_ERR(mpcs->sgmii_tx))
   509			return PTR_ERR(mpcs->sgmii_tx);
   510	
   511		if (of_parse_phandle(dev->of_node, "phys", 0)) {
   512			mpcs->xfi_tphy = devm_of_phy_get(mpcs->dev, dev->of_node, NULL);
   513			if (IS_ERR(mpcs->xfi_tphy))
   514				return PTR_ERR(mpcs->xfi_tphy);
   515		} else
   516			mpcs->xfi_tphy = NULL;
   517	
   518		pcs = mtk_pcs_lynxi_init(dev, of_fwnode_handle(np), regmap,
   519					 (uintptr_t)of_device_get_match_data(dev),
   520					 mpcs);
   521		if (IS_ERR(pcs))
   522			return PTR_ERR(pcs);
   523	
   524		regmap_set_bits(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, SGMII_PHYA_PWD);
   525	
   526		platform_set_drvdata(pdev, mpcs);
   527	
   528		return fwnode_pcs_add_provider(of_fwnode_handle(np), fwnode_pcs_simple_get, &mpcs->pcs);
   529	}
   530	

--
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https://github.com/intel/lkp-tests/wiki