drivers/mux/adgs1408.c:112:34: warning: unused variable 'adgs1408_of_match'

From: kbuild test robot
Date: Tue May 19 2020 - 22:23:26 EST


Hi Chris,

First bad commit (maybe != root cause):

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 115a54162a6c0d0ef2aef25ebd0b61fc5e179ebe
commit: e9e40543ad5b38b848879768359fd13650529961 spi: Add generic SPI multiplexer
date: 3 months ago
config: x86_64-randconfig-r022-20200519 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 135b877874fae96b4372c8a3fbfaa8ff44ff86e3)
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
git checkout e9e40543ad5b38b848879768359fd13650529961
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

drivers/mux/adgs1408.c:62:12: warning: cast to smaller integer type 'enum adgs1408_chip_id' from 'const void *' [-Wvoid-pointer-to-enum-cast]
chip_id = (enum adgs1408_chip_id)of_device_get_match_data(dev);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/mux/adgs1408.c:112:34: warning: unused variable 'adgs1408_of_match' [-Wunused-const-variable]
static const struct of_device_id adgs1408_of_match[] = {
^
2 warnings generated.

vim +/adgs1408_of_match +112 drivers/mux/adgs1408.c

8b9ce6954c05e3 Mircea Caprioru 2018-08-01 111
8b9ce6954c05e3 Mircea Caprioru 2018-08-01 @112 static const struct of_device_id adgs1408_of_match[] = {
8b9ce6954c05e3 Mircea Caprioru 2018-08-01 113 { .compatible = "adi,adgs1408", .data = (void *)ADGS1408, },
8b9ce6954c05e3 Mircea Caprioru 2018-08-01 114 { .compatible = "adi,adgs1409", .data = (void *)ADGS1409, },
8b9ce6954c05e3 Mircea Caprioru 2018-08-01 115 { }
8b9ce6954c05e3 Mircea Caprioru 2018-08-01 116 };
8b9ce6954c05e3 Mircea Caprioru 2018-08-01 117 MODULE_DEVICE_TABLE(of, adgs1408_of_match);
8b9ce6954c05e3 Mircea Caprioru 2018-08-01 118

:::::: The code at line 112 was first introduced by commit
:::::: 8b9ce6954c05e3e4115f54444c7eaf2aa2dd5e65 mux: adgs1408: new driver for Analog Devices ADGS1408/1409 mux

:::::: TO: Mircea Caprioru <mircea.caprioru@xxxxxxxxxx>
:::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
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