Hi Serge, kernel test robot noticed the following build warnings: [auto build test WARNING on ras/edac-for-next] [also build test WARNING on linus/master v6.6-rc2 next-20230921] [cannot apply to xilinx-xlnx/master bp/for-next] [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/Serge-Semin/EDAC-synopsys-Convert-sysfs-nodes-to-debugfs-ones/20230921-035302 base: https://git.kernel.org/pub/scm/linux/kernel/git/ras/ras.git edac-for-next patch link: https://lore.kernel.org/r/20230920192806.29960-14-fancer.lancer%40gmail.com patch subject: [PATCH v4 13/18] EDAC/synopsys: Introduce System/SDRAM address translation interface config: arm64-randconfig-003-20230924 (https://download.01.org/0day-ci/archive/20230924/202309241453.RCKvoFI9-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230924/202309241453.RCKvoFI9-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 <yujie.liu@xxxxxxxxx> | Closes: https://lore.kernel.org/r/202309241453.RCKvoFI9-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/edac/synopsys_edac.c:482:13: warning: 'snps_map_sys_to_sdram' defined but not used [-Wunused-function] 482 | static void snps_map_sys_to_sdram(struct snps_edac_priv *priv, | ^~~~~~~~~~~~~~~~~~~~~ vim +/snps_map_sys_to_sdram +482 drivers/edac/synopsys_edac.c 07abea90e8d373 Serge Semin 2023-09-20 472 07abea90e8d373 Serge Semin 2023-09-20 473 /** 07abea90e8d373 Serge Semin 2023-09-20 474 * snps_map_sys_to_sdram - Map System address to SDRAM address. 07abea90e8d373 Serge Semin 2023-09-20 475 * @priv: DDR memory controller private instance data. 07abea90e8d373 Serge Semin 2023-09-20 476 * @sys: System address (source). 07abea90e8d373 Serge Semin 2023-09-20 477 * @sdram: SDRAM address (destination). 07abea90e8d373 Serge Semin 2023-09-20 478 * 07abea90e8d373 Serge Semin 2023-09-20 479 * Perform a full mapping of the system address (detected on the controller 07abea90e8d373 Serge Semin 2023-09-20 480 * ports) to the SDRAM address tuple row/column/bank/etc. 07abea90e8d373 Serge Semin 2023-09-20 481 */ 07abea90e8d373 Serge Semin 2023-09-20 @482 static void snps_map_sys_to_sdram(struct snps_edac_priv *priv, 07abea90e8d373 Serge Semin 2023-09-20 483 dma_addr_t sys, struct snps_sdram_addr *sdram) 07abea90e8d373 Serge Semin 2023-09-20 484 { 07abea90e8d373 Serge Semin 2023-09-20 485 u64 app, hif; 07abea90e8d373 Serge Semin 2023-09-20 486 07abea90e8d373 Serge Semin 2023-09-20 487 app = sys; 07abea90e8d373 Serge Semin 2023-09-20 488 07abea90e8d373 Serge Semin 2023-09-20 489 snps_map_app_to_hif(priv, app, &hif); 07abea90e8d373 Serge Semin 2023-09-20 490 07abea90e8d373 Serge Semin 2023-09-20 491 snps_map_hif_to_sdram(priv, hif, sdram); 07abea90e8d373 Serge Semin 2023-09-20 492 } 07abea90e8d373 Serge Semin 2023-09-20 493 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki