Hi Inochi, kernel test robot noticed the following build warnings: [auto build test WARNING on robh/for-next] [also build test WARNING 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: um-allyesconfig (https://download.01.org/0day-ci/archive/20241025/202410252215.79396yyg-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241025/202410252215.79396yyg-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202410252215.79396yyg-lkp@xxxxxxxxx/ All 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' [-Werror=implicit-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; | ^~~ drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c: In function 'sophgo_dwmac_fix_mac_speed': >> drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c:31:12: warning: 'ret' is used uninitialized [-Wuninitialized] 31 | if (ret < 0) { | ^ drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c:28:13: note: 'ret' was declared here 28 | int ret; | ^~~ cc1: some warnings being treated as errors Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for MODVERSIONS Depends on [n]: MODULES [=y] && !COMPILE_TEST [=y] Selected by [y]: - RANDSTRUCT_FULL [=y] && (CC_HAS_RANDSTRUCT [=n] || GCC_PLUGINS [=y]) && MODULES [=y] WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [y]: - RESOURCE_KUNIT_TEST [=y] && RUNTIME_TESTING_MENU [=y] && KUNIT [=y] vim +/ret +31 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 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki