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Subjectdrivers/staging/media/atomisp/i2c/atomisp-gc2235.c:567:6: warning: variable 'ret' set but not used
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: e5220dd16778fe21d234a64e36cf50b54110025f
commit: aa31f6514047da6460e3db8247c2cefe3e08f6d9 media: atomisp: allow building the driver again
date: 1 year, 1 month ago
config: x86_64-randconfig-r023-20210606 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8ec9aa236e325fd4629cfeefac2919302e14d61a)
reproduce (this is a W=1 build):
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
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=aa31f6514047da6460e3db8247c2cefe3e08f6d9
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout aa31f6514047da6460e3db8247c2cefe3e08f6d9
# 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: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/staging/media/atomisp/i2c/atomisp-gc2235.c:567:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
int ret = -1;
^
1 warning generated.


vim +/ret +567 drivers/staging/media/atomisp/i2c/atomisp-gc2235.c

ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 563
ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 564 static int gpio_ctrl(struct v4l2_subdev *sd, bool flag)
ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 565 {
ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 566 struct gc2235_device *dev = to_gc2235_sensor(sd);
ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 @567 int ret = -1;
ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 568
ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 569 if (!dev || !dev->platform_data)
ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 570 return -ENODEV;
ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 571
ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 572 ret |= dev->platform_data->gpio1_ctrl(sd, !flag);
ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 573 usleep_range(60, 90);
ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 574 return dev->platform_data->gpio0_ctrl(sd, flag);
ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 575 }
ad85094b293e40 Mauro Carvalho Chehab 2020-04-19 576

:::::: The code at line 567 was first introduced by commit
:::::: ad85094b293e40e7a2f831b0311a389d952ebd5e Revert "media: staging: atomisp: Remove driver"

:::::: TO: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
:::::: CC: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

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