[frank-w-bpi-r2-4.14:pr/214 3/3] drivers/net/ethernet/mediatek/mtk_eth_dbg.c:435:25: warning: variable 'mac' set but not used

[frank-w-bpi-r2-4.14:pr/214 3/3] drivers/net/ethernet/mediatek/mtk_eth_dbg.c:435:25: warning: variable 'mac' set but not used

[kernel test robot]

Hi Frank,

FYI, the error/warning still remains.

tree:   https://github.com/frank-w/BPI-R2-4.14 pr/214
head:   894796752b9044f9e75ab8a8ef1d7f18b895ba3b
commit: f6261a83d9f211b58713bae33b28f274b6454612 [3/3] net: mediatek: add proprietary debugfs
config: um-randconfig-001-20260814 (https://download.01.org/0day-ci/archive/20260814/202608141528.WjLklYyF-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260814/202608141528.WjLklYyF-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/202608141528.WjLklYyF-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/net/ethernet/mediatek/mtk_eth_dbg.c: In function 'mtketh_debug_show':
>> drivers/net/ethernet/mediatek/mtk_eth_dbg.c:435:25: warning: variable 'mac' set but not used [-Wunused-but-set-variable]
     435 |         struct mtk_mac *mac = 0;
         |                         ^~~
   drivers/net/ethernet/mediatek/mtk_eth_dbg.c: In function 'hw_lro_auto_tlb_write':
>> drivers/net/ethernet/mediatek/mtk_eth_dbg.c:1810:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
    1810 |         int ret;
         |             ^~~
   drivers/net/ethernet/mediatek/mtk_eth_dbg.c: In function 'hw_lro_auto_tlb_dump_v2':
>> drivers/net/ethernet/mediatek/mtk_eth_dbg.c:1903:13: warning: variable 'score' set but not used [-Wunused-but-set-variable]
    1903 |         u32 score = 0, ipv4 = 0;
         |             ^~~~~


vim +/mac +435 drivers/net/ethernet/mediatek/mtk_eth_dbg.c

   431	
   432	static int mtketh_debug_show(struct seq_file *m, void *private)
   433	{
   434		struct mtk_eth *eth = m->private;
 > 435		struct mtk_mac *mac = 0;
   436		int  i = 0;
   437	
   438		for (i = 0 ; i < MTK_MAX_DEVS ; i++) {
   439			if (!eth->mac[i] ||
   440			    of_phy_is_fixed_link(eth->mac[i]->of_node))
   441				continue;
   442			mac = eth->mac[i];
   443	/* FIXME */
   444	/*
   445			while (j < 30) {
   446				d =  _mtk_mdio_read_c22(eth, mac->phy_dev->addr, j);
   447	
   448				seq_printf(m, "phy=%d, reg=0x%08x, data=0x%08x\n",
   449					   mac->phy_dev->addr, j, d);
   450				j++;
   451			}
   452	*/
   453		}
   454		return 0;
   455	}
   456	

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