[PATCH v2 4/4] net: stmmac: Add glue layer for Sophgo SG2044 SoC

[kernel test robot]

Hi Inochi,

kernel test robot noticed the following build errors:

[auto build test ERROR on robh/for-next]
[also build test ERROR on sophgo/for-next sophgo/fixes net-next/main net/main linus/master v6.12-rc4 next-20241025]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Inochi-Amaoto/dt-bindings-net-snps-dwmac-Add-dwmac-5-30a-version/20241025-091315
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20241025011000.244350-5-inochiama%40gmail.com
patch subject: [PATCH v2 4/4] net: stmmac: Add glue layer for Sophgo SG2044 SoC
config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20241025/202410252357.pCyOX2bg-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241025/202410252357.pCyOX2bg-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410252357.pCyOX2bg-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c: In function 'sophgo_dwmac_fix_mac_speed':
>> drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c:30:16: error: implicit declaration of function 'rgmii_clock' [-Wimplicit-function-declaration]
      30 |         rate = rgmii_clock(speed);
         |                ^~~~~~~~~~~
   drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c: In function 'sophgo_sg2044_dwmac_init':
>> drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c:46:13: warning: unused variable 'ret' [-Wunused-variable]
      46 |         int ret;
         |             ^~~


vim +/rgmii_clock +30 drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c

    23	
    24	static void sophgo_dwmac_fix_mac_speed(void *priv, unsigned int speed, unsigned int mode)
    25	{
    26		struct sophgo_dwmac *dwmac = priv;
    27		long rate;
    28		int ret;
    29	
  > 30		rate = rgmii_clock(speed);
    31		if (ret < 0) {
    32			dev_err(dwmac->dev, "invalid speed %u\n", speed);
    33			return;
    34		}
    35	
    36		ret = clk_set_rate(dwmac->clk_tx, rate);
    37		if (ret)
    38			dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate);
    39	}
    40	
    41	static int sophgo_sg2044_dwmac_init(struct platform_device *pdev,
    42					    struct plat_stmmacenet_data *plat_dat,
    43					    struct stmmac_resources *stmmac_res)
    44	{
    45		struct sophgo_dwmac *dwmac;
  > 46		int ret;
    47	
    48		dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);
    49		if (!dwmac)
    50			return -ENOMEM;
    51	
    52		dwmac->clk_tx = devm_clk_get_enabled(&pdev->dev, "tx");
    53		if (IS_ERR(dwmac->clk_tx))
    54			return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_tx),
    55					     "failed to get tx clock\n");
    56	
    57		dwmac->dev = &pdev->dev;
    58		plat_dat->bsp_priv = dwmac;
    59		plat_dat->flags |= STMMAC_FLAG_SPH_DISABLE;
    60		plat_dat->fix_mac_speed = sophgo_dwmac_fix_mac_speed;
    61		plat_dat->multicast_filter_bins = 0;
    62		plat_dat->unicast_filter_entries = 1;
    63	
    64		return 0;
    65	}
    66	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki