Re: [PATCH 2/2] usb: Implement usb_revoke() BPF function

[kernel test robot <lkp@intel.com>]

Hi Bastien,

I love your patch! Yet something to improve:

[auto build test ERROR on usb/usb-testing]
[also build test ERROR on balbi-usb/testing/next peter-chen-usb/for-usb-next linus/master v5.19 next-20220810]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Bastien-Nocera/USB-core-add-a-way-to-revoke-access-to-open-USB-devices/20220809-174609
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
config: arm64-randconfig-r001-20220810 (https://download.01.org/0day-ci/archive/20220811/202208110101.rbONyPek-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 5f1c7e2cc5a3c07cbc2412e851a7283c1841f520)
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 arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/b8d37bab24eee13dfbbb947c6a44f5f363c6bb7a
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Bastien-Nocera/USB-core-add-a-way-to-revoke-access-to-open-USB-devices/20220809-174609
        git checkout b8d37bab24eee13dfbbb947c6a44f5f363c6bb7a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/usb/core/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All error/warnings (new ones prefixed by >>):

>> drivers/usb/core/usb.c:465:1: warning: no previous prototype for function 'usb_revoke_device' [-Wmissing-prototypes]
   usb_revoke_device(int busnum, int devnum, unsigned int euid)
   ^
   drivers/usb/core/usb.c:464:10: note: declare 'static' if the function is not intended to be used outside of this translation unit
   noinline int
            ^
            static 
>> drivers/usb/core/usb.c:1050:3: error: field designator 'check_set' does not refer to any field in type 'const struct btf_kfunc_id_set'
           .check_set = &usbdev_kfunc_ids,
            ^
   1 warning and 1 error generated.


vim +1050 drivers/usb/core/usb.c

  1047	
  1048	static const struct btf_kfunc_id_set usbdev_kfunc_set = {
  1049		.owner     = THIS_MODULE,
> 1050		.check_set = &usbdev_kfunc_ids,
  1051	};
  1052	

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