Hi David, kernel test robot noticed the following build warnings: [auto build test WARNING on jic23-iio/togreg] [also build test WARNING on linus/master v6.6-rc2 next-20230920] [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/David-Lechner/dt-bindings-iio-resolver-add-devicetree-bindings-for-ad2s1210/20230921-010529 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg patch link: https://lore.kernel.org/r/20230920170253.203395-5-dlechner%40baylibre.com patch subject: [PATCH 4/4] iio: resolver: add new driver for AD2S1210 config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20230921/202309210740.YRdN185w-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230921/202309210740.YRdN185w-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/202309210740.YRdN185w-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/iio/resolver/ad2s1210.c:113: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Writes the given data to the given register address. drivers/iio/resolver/ad2s1210.c:151: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Reads value from one of the registers. drivers/iio/resolver/ad2s1210.c:201: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Sets the excitation frequency and performs software reset. vim +113 drivers/iio/resolver/ad2s1210.c 111 112 /** > 113 * Writes the given data to the given register address. 114 * 115 * If the mode is configurable, the device will first be placed in 116 * configuration mode. 117 */ 118 static int ad2s1210_regmap_reg_write(void *context, unsigned int reg, 119 unsigned int val) 120 { 121 struct ad2s1210_state *st = context; 122 struct spi_transfer xfers[] = { 123 { 124 .len = 1, 125 .rx_buf = &st->rx[0], 126 .tx_buf = &st->tx[0], 127 .cs_change = 1, 128 }, { 129 .len = 1, 130 .rx_buf = &st->rx[1], 131 .tx_buf = &st->tx[1], 132 }, 133 }; 134 int ret; 135 136 /* values can only be 7 bits, the MSB indicates an address */ 137 if (val & ~0x7F) 138 return -EINVAL; 139 140 st->tx[0] = reg; 141 st->tx[1] = val; 142 143 ret = ad2s1210_set_mode(st, AD2S1210_MODE_CONFIG); 144 if (ret < 0) 145 return ret; 146 147 return spi_sync_transfer(st->sdev, xfers, ARRAY_SIZE(xfers)); 148 } 149 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
