linux-kernel - drivers/iio/accel/da280.c:181:36: warning: 'da280_acpi

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Date:   Tue, 14 Feb 2023 22:21:54 +0800
From:   kernel test robot <lkp@...el.com>
To:     Luke Ross <luke@...eross.name>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: drivers/iio/accel/da280.c:181:36: warning: 'da280_acpi_match'
 defined but not used

Hi Luke,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f6feea56f66d34259c4222fa02e8171c4f2673d1
commit: 4c42bef0d3a1dd1a04d1f42c079f461cc1b139bc iio:accel:da280: Linx 820 Windows tablet has a da280 mapped via ACPI
date:   5 years ago
config: i386-buildonly-randconfig-r002-20230213 (https://download.01.org/0day-ci/archive/20230214/202302142222.vVU0E4eu-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4c42bef0d3a1dd1a04d1f42c079f461cc1b139bc
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 4c42bef0d3a1dd1a04d1f42c079f461cc1b139bc
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash M=drivers/iio/accel

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302142222.vVU0E4eu-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/iio/accel/da280.c:181:36: warning: 'da280_acpi_match' defined but not used [-Wunused-const-variable=]
     181 | static const struct acpi_device_id da280_acpi_match[] = {
         |                                    ^~~~~~~~~~~~~~~~


vim +/da280_acpi_match +181 drivers/iio/accel/da280.c

   180	
 > 181	static const struct acpi_device_id da280_acpi_match[] = {
   182		{"MIRAACC", da280},
   183		{},
   184	};
   185	MODULE_DEVICE_TABLE(acpi, da280_acpi_match);
   186	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests