* drivers/iio/temperature/ltc2983.c:1895:1: warning: the frame size of 1136 bytes is larger than 1024 bytes
@ 2026-09-25 22:16 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-09-25 22:16 UTC (permalink / raw)
To: Liviu Stan; +Cc: oe-kbuild-all, linux-kernel, Jonathan Cameron
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 165768bb70265b5c38cf0b73fafd75be235f8b14
commit: 3dd0c048409e335320418c632966f149be628fd4 iio: temperature: ltc2983: Add support for ADT7604
date: 4 months ago
config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20260926/202609260048.kjlkLMOK-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260926/202609260048.kjlkLMOK-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
| Fixes: 3dd0c048409e ("iio: temperature: ltc2983: Add support for ADT7604")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202609260048.kjlkLMOK-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/iio/temperature/ltc2983.c: In function 'ltc2983_setup':
>> drivers/iio/temperature/ltc2983.c:1895:1: warning: the frame size of 1136 bytes is larger than 1024 bytes [-Wframe-larger-than=]
1895 | }
| ^
vim +1895 drivers/iio/temperature/ltc2983.c
6f7cadcf664b04 Cosmin Tanislav 2022-11-03 1805
f110f3188e5639 Nuno Sá 2019-10-11 1806 static int ltc2983_setup(struct ltc2983_data *st, bool assign_iio)
f110f3188e5639 Nuno Sá 2019-10-11 1807 {
6b047d099703c9 Liviu Stan 2026-05-25 1808 struct device *dev = &st->spi->dev;
3dd0c048409e33 Liviu Stan 2026-05-25 1809 u32 iio_chan_t = 0, iio_chan_v = 0, iio_chan_r = 0, iio_chan_c = 0;
3dd0c048409e33 Liviu Stan 2026-05-25 1810 u32 chan, iio_idx = 0, status;
f110f3188e5639 Nuno Sá 2019-10-11 1811 int ret;
f110f3188e5639 Nuno Sá 2019-10-11 1812
b76d26d69ecc97 Nuno Sá 2021-08-11 1813 /* make sure the device is up: start bit (7) is 0 and done bit (6) is 1 */
b76d26d69ecc97 Nuno Sá 2021-08-11 1814 ret = regmap_read_poll_timeout(st->regmap, LTC2983_STATUS_REG, status,
b76d26d69ecc97 Nuno Sá 2021-08-11 1815 LTC2983_STATUS_UP(status) == 1, 25000,
b76d26d69ecc97 Nuno Sá 2021-08-11 1816 25000 * 10);
a00838cae079b9 Nuno Sa 2024-06-06 1817 if (ret)
6b047d099703c9 Liviu Stan 2026-05-25 1818 return dev_err_probe(dev, ret, "Device startup timed out\n");
f110f3188e5639 Nuno Sá 2019-10-11 1819
f110f3188e5639 Nuno Sá 2019-10-11 1820 ret = regmap_update_bits(st->regmap, LTC2983_GLOBAL_CONFIG_REG,
f110f3188e5639 Nuno Sá 2019-10-11 1821 LTC2983_NOTCH_FREQ_MASK,
f110f3188e5639 Nuno Sá 2019-10-11 1822 LTC2983_NOTCH_FREQ(st->filter_notch_freq));
f110f3188e5639 Nuno Sá 2019-10-11 1823 if (ret)
f110f3188e5639 Nuno Sá 2019-10-11 1824 return ret;
f110f3188e5639 Nuno Sá 2019-10-11 1825
f110f3188e5639 Nuno Sá 2019-10-11 1826 ret = regmap_write(st->regmap, LTC2983_MUX_CONFIG_REG,
f110f3188e5639 Nuno Sá 2019-10-11 1827 st->mux_delay_config);
f110f3188e5639 Nuno Sá 2019-10-11 1828 if (ret)
f110f3188e5639 Nuno Sá 2019-10-11 1829 return ret;
f110f3188e5639 Nuno Sá 2019-10-11 1830
6f7cadcf664b04 Cosmin Tanislav 2022-11-03 1831 if (st->info->has_eeprom && !assign_iio) {
6f7cadcf664b04 Cosmin Tanislav 2022-11-03 1832 ret = ltc2983_eeprom_cmd(st, LTC2983_EEPROM_READ_CMD,
6f7cadcf664b04 Cosmin Tanislav 2022-11-03 1833 LTC2983_EEPROM_READ_TIME_MS,
6f7cadcf664b04 Cosmin Tanislav 2022-11-03 1834 LTC2983_EEPROM_READ_STATUS_REG,
6f7cadcf664b04 Cosmin Tanislav 2022-11-03 1835 LTC2983_EEPROM_READ_FAILURE_MASK);
6f7cadcf664b04 Cosmin Tanislav 2022-11-03 1836 if (!ret)
6f7cadcf664b04 Cosmin Tanislav 2022-11-03 1837 return 0;
6f7cadcf664b04 Cosmin Tanislav 2022-11-03 1838 }
6f7cadcf664b04 Cosmin Tanislav 2022-11-03 1839
f110f3188e5639 Nuno Sá 2019-10-11 1840 for (chan = 0; chan < st->num_channels; chan++) {
f110f3188e5639 Nuno Sá 2019-10-11 1841 u32 chan_type = 0, *iio_chan;
f110f3188e5639 Nuno Sá 2019-10-11 1842
f110f3188e5639 Nuno Sá 2019-10-11 1843 ret = st->sensors[chan]->assign_chan(st, st->sensors[chan]);
f110f3188e5639 Nuno Sá 2019-10-11 1844 if (ret)
f110f3188e5639 Nuno Sá 2019-10-11 1845 return ret;
f110f3188e5639 Nuno Sá 2019-10-11 1846 /*
f110f3188e5639 Nuno Sá 2019-10-11 1847 * The assign_iio flag is necessary for when the device is
f110f3188e5639 Nuno Sá 2019-10-11 1848 * coming out of sleep. In that case, we just need to
f110f3188e5639 Nuno Sá 2019-10-11 1849 * re-configure the device channels.
f110f3188e5639 Nuno Sá 2019-10-11 1850 * We also don't assign iio channels for rsense.
f110f3188e5639 Nuno Sá 2019-10-11 1851 */
f110f3188e5639 Nuno Sá 2019-10-11 1852 if (st->sensors[chan]->type == LTC2983_SENSOR_SENSE_RESISTOR ||
f110f3188e5639 Nuno Sá 2019-10-11 1853 !assign_iio)
f110f3188e5639 Nuno Sá 2019-10-11 1854 continue;
f110f3188e5639 Nuno Sá 2019-10-11 1855
f110f3188e5639 Nuno Sá 2019-10-11 1856 /* assign iio channel */
3dd0c048409e33 Liviu Stan 2026-05-25 1857 switch (st->sensors[chan]->type) {
3dd0c048409e33 Liviu Stan 2026-05-25 1858 case LTC2983_SENSOR_COPPER_TRACE:
3dd0c048409e33 Liviu Stan 2026-05-25 1859 if (st->sensors[chan]->n_iio_chan == 1) {
3dd0c048409e33 Liviu Stan 2026-05-25 1860 /* sub-ohm copper traces produce only a resistance result */
3dd0c048409e33 Liviu Stan 2026-05-25 1861 st->iio_chan[iio_idx++] =
3dd0c048409e33 Liviu Stan 2026-05-25 1862 LTC2983_CHAN(IIO_RESISTANCE, iio_chan_r++, chan);
f110f3188e5639 Nuno Sá 2019-10-11 1863 } else {
3dd0c048409e33 Liviu Stan 2026-05-25 1864 st->iio_chan[iio_idx++] =
3dd0c048409e33 Liviu Stan 2026-05-25 1865 LTC2983_CHAN(IIO_TEMP, iio_chan_t++, chan);
3dd0c048409e33 Liviu Stan 2026-05-25 1866 st->iio_chan[iio_idx++] =
3dd0c048409e33 Liviu Stan 2026-05-25 1867 LTC2983_CHAN(IIO_RESISTANCE, iio_chan_r++, chan);
3dd0c048409e33 Liviu Stan 2026-05-25 1868 }
3dd0c048409e33 Liviu Stan 2026-05-25 1869 continue;
3dd0c048409e33 Liviu Stan 2026-05-25 1870 case LTC2983_SENSOR_LEAK_DETECTOR:
3dd0c048409e33 Liviu Stan 2026-05-25 1871 st->iio_chan[iio_idx++] =
3dd0c048409e33 Liviu Stan 2026-05-25 1872 LTC2983_CHAN(IIO_COVERAGE, iio_chan_c++, chan);
3dd0c048409e33 Liviu Stan 2026-05-25 1873 st->iio_chan[iio_idx++] =
3dd0c048409e33 Liviu Stan 2026-05-25 1874 LTC2983_CHAN(IIO_RESISTANCE, iio_chan_r++, chan);
3dd0c048409e33 Liviu Stan 2026-05-25 1875 continue;
3dd0c048409e33 Liviu Stan 2026-05-25 1876 case LTC2983_SENSOR_DIRECT_ADC:
f110f3188e5639 Nuno Sá 2019-10-11 1877 chan_type = IIO_VOLTAGE;
f110f3188e5639 Nuno Sá 2019-10-11 1878 iio_chan = &iio_chan_v;
3dd0c048409e33 Liviu Stan 2026-05-25 1879 break;
3dd0c048409e33 Liviu Stan 2026-05-25 1880 default:
3dd0c048409e33 Liviu Stan 2026-05-25 1881 chan_type = IIO_TEMP;
3dd0c048409e33 Liviu Stan 2026-05-25 1882 iio_chan = &iio_chan_t;
3dd0c048409e33 Liviu Stan 2026-05-25 1883 break;
f110f3188e5639 Nuno Sá 2019-10-11 1884 }
f110f3188e5639 Nuno Sá 2019-10-11 1885
f110f3188e5639 Nuno Sá 2019-10-11 1886 /*
f110f3188e5639 Nuno Sá 2019-10-11 1887 * add chan as the iio .address so that, we can directly
f110f3188e5639 Nuno Sá 2019-10-11 1888 * reference the sensor given the iio_chan_spec
f110f3188e5639 Nuno Sá 2019-10-11 1889 */
f110f3188e5639 Nuno Sá 2019-10-11 1890 st->iio_chan[iio_idx++] = LTC2983_CHAN(chan_type, (*iio_chan)++,
f110f3188e5639 Nuno Sá 2019-10-11 1891 chan);
f110f3188e5639 Nuno Sá 2019-10-11 1892 }
f110f3188e5639 Nuno Sá 2019-10-11 1893
f110f3188e5639 Nuno Sá 2019-10-11 1894 return 0;
f110f3188e5639 Nuno Sá 2019-10-11 @1895 }
f110f3188e5639 Nuno Sá 2019-10-11 1896
:::::: The code at line 1895 was first introduced by commit
:::::: f110f3188e5639c81c457b2b831d40dfe3891bdb iio: temperature: Add support for LTC2983
:::::: TO: Nuno Sá <nuno.sa@analog.com>
:::::: CC: Jonathan Cameron <Jonathan.Cameron@huawei.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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