drivers/iio/adc/rcar-gyroadc.c:300:34: warning: 'rcar_gyroadc_child_match' defined but not used
From: kernel test robot
Date: Sun May 15 2022 - 19:48:09 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0cdd776ec92c0fec768c7079331804d3e52d4b27
commit: af5d716a90ba55635bbdcbf145465b5fdc5a5530 iio: adc: rcar-gyroadc: Enable compile-testing on non-ARM
date: 4 years, 7 months ago
config: i386-buildonly-randconfig-r001-20220516 (https://download.01.org/0day-ci/archive/20220516/202205160759.pkycZ4CI-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=af5d716a90ba55635bbdcbf145465b5fdc5a5530
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout af5d716a90ba55635bbdcbf145465b5fdc5a5530
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/bcma/ drivers/i2c/busses/ drivers/iio/adc/ drivers/regulator/ drivers/soc/mediatek/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All warnings (new ones prefixed by >>):
In file included from include/linux/workqueue.h:8,
from include/linux/srcu.h:34,
from include/linux/notifier.h:15,
from include/linux/memory_hotplug.h:6,
from include/linux/mmzone.h:779,
from include/linux/gfp.h:5,
from include/linux/umh.h:4,
from include/linux/kmod.h:22,
from include/linux/module.h:13,
from drivers/iio/adc/rcar-gyroadc.c:17:
include/linux/timer.h: In function 'timer_setup':
include/linux/timer.h:178:30: warning: cast between incompatible function types from 'void (*)(struct timer_list *)' to 'void (*)(long unsigned int)' [-Wcast-function-type]
178 | __setup_timer(timer, (TIMER_FUNC_TYPE)callback,
| ^
include/linux/timer.h:143:39: note: in definition of macro '__setup_timer'
143 | (_timer)->function = (_fn); \
| ^~~
In file included from drivers/iio/adc/rcar-gyroadc.c:17:
drivers/iio/adc/rcar-gyroadc.c: At top level:
include/linux/module.h:137:14: warning: 'cleanup_module' specifies less restrictive attribute than its target 'rcar_gyroadc_driver_exit': 'cold' [-Wmissing-attributes]
137 | void cleanup_module(void) __attribute__((alias(#exitfn)));
| ^~~~~~~~~~~~~~
include/linux/device.h:1509:1: note: in expansion of macro 'module_exit'
1509 | module_exit(__driver##_exit);
| ^~~~~~~~~~~
include/linux/platform_device.h:228:9: note: in expansion of macro 'module_driver'
228 | module_driver(__platform_driver, platform_driver_register, \
| ^~~~~~~~~~~~~
drivers/iio/adc/rcar-gyroadc.c:628:1: note: in expansion of macro 'module_platform_driver'
628 | module_platform_driver(rcar_gyroadc_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/platform_device.h:14,
from drivers/iio/adc/rcar-gyroadc.c:18:
drivers/iio/adc/rcar-gyroadc.c:628:24: note: 'cleanup_module' target declared here
628 | module_platform_driver(rcar_gyroadc_driver);
| ^~~~~~~~~~~~~~~~~~~
include/linux/device.h:1505:20: note: in definition of macro 'module_driver'
1505 | static void __exit __driver##_exit(void) \
| ^~~~~~~~
drivers/iio/adc/rcar-gyroadc.c:628:1: note: in expansion of macro 'module_platform_driver'
628 | module_platform_driver(rcar_gyroadc_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/iio/adc/rcar-gyroadc.c:17:
include/linux/module.h:131:13: warning: 'init_module' specifies less restrictive attribute than its target 'rcar_gyroadc_driver_init': 'cold' [-Wmissing-attributes]
131 | int init_module(void) __attribute__((alias(#initfn)));
| ^~~~~~~~~~~
include/linux/device.h:1504:1: note: in expansion of macro 'module_init'
1504 | module_init(__driver##_init); \
| ^~~~~~~~~~~
include/linux/platform_device.h:228:9: note: in expansion of macro 'module_driver'
228 | module_driver(__platform_driver, platform_driver_register, \
| ^~~~~~~~~~~~~
drivers/iio/adc/rcar-gyroadc.c:628:1: note: in expansion of macro 'module_platform_driver'
628 | module_platform_driver(rcar_gyroadc_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/platform_device.h:14,
from drivers/iio/adc/rcar-gyroadc.c:18:
drivers/iio/adc/rcar-gyroadc.c:628:24: note: 'init_module' target declared here
628 | module_platform_driver(rcar_gyroadc_driver);
| ^~~~~~~~~~~~~~~~~~~
include/linux/device.h:1500:19: note: in definition of macro 'module_driver'
1500 | static int __init __driver##_init(void) \
| ^~~~~~~~
drivers/iio/adc/rcar-gyroadc.c:628:1: note: in expansion of macro 'module_platform_driver'
628 | module_platform_driver(rcar_gyroadc_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
>> drivers/iio/adc/rcar-gyroadc.c:300:34: warning: 'rcar_gyroadc_child_match' defined but not used [-Wunused-const-variable=]
300 | static const struct of_device_id rcar_gyroadc_child_match[] = {
| ^~~~~~~~~~~~~~~~~~~~~~~~
vim +/rcar_gyroadc_child_match +300 drivers/iio/adc/rcar-gyroadc.c
059c53b3232960 Marek Vasut 2017-01-28 299
059c53b3232960 Marek Vasut 2017-01-28 @300 static const struct of_device_id rcar_gyroadc_child_match[] = {
059c53b3232960 Marek Vasut 2017-01-28 301 /* Mode 1 ADCs */
059c53b3232960 Marek Vasut 2017-01-28 302 {
059c53b3232960 Marek Vasut 2017-01-28 303 .compatible = "fujitsu,mb88101a",
059c53b3232960 Marek Vasut 2017-01-28 304 .data = (void *)RCAR_GYROADC_MODE_SELECT_1_MB88101A,
059c53b3232960 Marek Vasut 2017-01-28 305 },
059c53b3232960 Marek Vasut 2017-01-28 306 /* Mode 2 ADCs */
059c53b3232960 Marek Vasut 2017-01-28 307 {
059c53b3232960 Marek Vasut 2017-01-28 308 .compatible = "ti,adcs7476",
059c53b3232960 Marek Vasut 2017-01-28 309 .data = (void *)RCAR_GYROADC_MODE_SELECT_2_ADCS7476,
059c53b3232960 Marek Vasut 2017-01-28 310 }, {
059c53b3232960 Marek Vasut 2017-01-28 311 .compatible = "ti,adc121",
059c53b3232960 Marek Vasut 2017-01-28 312 .data = (void *)RCAR_GYROADC_MODE_SELECT_2_ADCS7476,
059c53b3232960 Marek Vasut 2017-01-28 313 }, {
059c53b3232960 Marek Vasut 2017-01-28 314 .compatible = "adi,ad7476",
059c53b3232960 Marek Vasut 2017-01-28 315 .data = (void *)RCAR_GYROADC_MODE_SELECT_2_ADCS7476,
059c53b3232960 Marek Vasut 2017-01-28 316 },
059c53b3232960 Marek Vasut 2017-01-28 317 /* Mode 3 ADCs */
059c53b3232960 Marek Vasut 2017-01-28 318 {
059c53b3232960 Marek Vasut 2017-01-28 319 .compatible = "maxim,max1162",
059c53b3232960 Marek Vasut 2017-01-28 320 .data = (void *)RCAR_GYROADC_MODE_SELECT_3_MAX1162,
059c53b3232960 Marek Vasut 2017-01-28 321 }, {
059c53b3232960 Marek Vasut 2017-01-28 322 .compatible = "maxim,max11100",
059c53b3232960 Marek Vasut 2017-01-28 323 .data = (void *)RCAR_GYROADC_MODE_SELECT_3_MAX1162,
059c53b3232960 Marek Vasut 2017-01-28 324 },
059c53b3232960 Marek Vasut 2017-01-28 325 { /* sentinel */ }
059c53b3232960 Marek Vasut 2017-01-28 326 };
059c53b3232960 Marek Vasut 2017-01-28 327
:::::: The code at line 300 was first introduced by commit
:::::: 059c53b3232960cfd38cc46de0a7bedd642021f5 iio: adc: Add Renesas GyroADC driver
:::::: TO: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>
:::::: CC: Jonathan Cameron <jic23@xxxxxxxxxx>
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