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SubjectRe: [PATCH v4 1/5] HID: nintendo: split switch support into its own file
Hi Emmanuel,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on hid/for-next]
[cannot apply to jikos-hid/for-next jikos-trivial/for-next v5.15-rc6 next-20211021]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Emmanuel-Gil-Peyrot/HID-nintendo-split-switch-support-into-its-own-file/20211019-200531
base: https://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git for-next
config: arm-randconfig-c002-20211019 (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
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
# https://github.com/0day-ci/linux/commit/ef6cb9d1fa01a825280bca49c84b644b8d08bfa6
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Emmanuel-Gil-Peyrot/HID-nintendo-split-switch-support-into-its-own-file/20211019-200531
git checkout ef6cb9d1fa01a825280bca49c84b644b8d08bfa6
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arm

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/hid/hid-nintendo.c: In function 'nintendo_hid_event':
drivers/hid/hid-nintendo.c:19:31: warning: unused variable 'driver' [-Wunused-variable]
19 | enum nintendo_driver *driver = hid_get_drvdata(hdev);
| ^~~~~~
drivers/hid/hid-nintendo.c: In function 'nintendo_hid_probe':
>> drivers/hid/hid-nintendo.c:37:16: warning: 'ret' is used uninitialized [-Wuninitialized]
37 | return ret;
| ^~~


vim +/ret +37 drivers/hid/hid-nintendo.c

c680902a57658c Daniel J. Ogorchock 2021-09-11 36
c680902a57658c Daniel J. Ogorchock 2021-09-11 @37 return ret;
c680902a57658c Daniel J. Ogorchock 2021-09-11 38 }
c680902a57658c Daniel J. Ogorchock 2021-09-11 39

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