Hi Romain, kernel test robot noticed the following build errors: [auto build test ERROR on 2014c95afecee3e76ca4a56956a936e23283f05b] url: https://github.com/intel-lab-lkp/linux/commits/Romain-Gantois/dt-bindings-misc-Describe-TI-FPC202-dual-port-controller/20250227-182532 base: 2014c95afecee3e76ca4a56956a936e23283f05b patch link: https://lore.kernel.org/r/20250227-fpc202-v8-9-b7994117fbe2%40bootlin.com patch subject: [PATCH v8 9/9] misc: add FPC202 dual port controller driver config: sparc-randconfig-r051-20250302 (https://download.01.org/0day-ci/archive/20250302/202503020450.UW2PuA6X-lkp@xxxxxxxxx/config) compiler: sparc-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250302/202503020450.UW2PuA6X-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/202503020450.UW2PuA6X-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): drivers/misc/ti_fpc202.c: In function 'fpc202_read': >> drivers/misc/ti_fpc202.c:104:15: error: implicit declaration of function 'i2c_smbus_read_byte_data' [-Wimplicit-function-declaration] 104 | val = i2c_smbus_read_byte_data(priv->client, reg); | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/misc/ti_fpc202.c: In function 'fpc202_write': >> drivers/misc/ti_fpc202.c:110:16: error: implicit declaration of function 'i2c_smbus_write_byte_data' [-Wimplicit-function-declaration] 110 | return i2c_smbus_write_byte_data(priv->client, reg, value); | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/misc/ti_fpc202.c: At top level: >> drivers/misc/ti_fpc202.c:433:1: warning: data definition has no type or storage class 433 | module_i2c_driver(fpc202_driver); | ^~~~~~~~~~~~~~~~~ >> drivers/misc/ti_fpc202.c:433:1: error: type defaults to 'int' in declaration of 'module_i2c_driver' [-Wimplicit-int] >> drivers/misc/ti_fpc202.c:433:1: error: parameter names (without types) in function declaration [-Wdeclaration-missing-parameter-type] >> drivers/misc/ti_fpc202.c:424:26: warning: 'fpc202_driver' defined but not used [-Wunused-variable] 424 | static struct i2c_driver fpc202_driver = { | ^~~~~~~~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for I2C_ATR Depends on [n]: I2C [=n] Selected by [y]: - TI_FPC202 [=y] vim +/i2c_smbus_read_byte_data +104 drivers/misc/ti_fpc202.c 99 100 static int fpc202_read(struct fpc202_priv *priv, u8 reg) 101 { 102 int val; 103 > 104 val = i2c_smbus_read_byte_data(priv->client, reg); 105 return val; 106 } 107 108 static int fpc202_write(struct fpc202_priv *priv, u8 reg, u8 value) 109 { > 110 return i2c_smbus_write_byte_data(priv->client, reg, value); 111 } 112 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
