Re: [PATCH HID for-next v1 8/9] HID: bpf: clean up entrypoint

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On Fri, Jan 6, 2023 at 2:42 PM kernel test robot <lkp@xxxxxxxxx> wrote:
>
> Hi Benjamin,
>
> I love your patch! Perhaps something to improve:
>
> [auto build test WARNING on hid/for-next]
> [also build test WARNING on next-20230106]
> [cannot apply to shuah-kselftest/next shuah-kselftest/fixes char-misc/char-misc-testing char-misc/char-misc-next char-misc/char-misc-linus linus/master v6.2-rc2]
> [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/Benjamin-Tissoires/selftests-hid-add-vmtest-sh/20230106-182823
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git for-next
> patch link:    https://lore.kernel.org/r/20230106102332.1019632-9-benjamin.tissoires%40redhat.com
> patch subject: [PATCH HID for-next v1 8/9] HID: bpf: clean up entrypoint
> config: i386-randconfig-a013
> compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
> 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/intel-lab-lkp/linux/commit/46336953b47885c5111b7c1a92403b3d94cf3d41
>         git remote add linux-review https://github.com/intel-lab-lkp/linux
>         git fetch --no-tags linux-review Benjamin-Tissoires/selftests-hid-add-vmtest-sh/20230106-182823
>         git checkout 46336953b47885c5111b7c1a92403b3d94cf3d41
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/hid/bpf/
>
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
>
> All warnings (new ones prefixed by >>):
>
> >> drivers/hid/bpf/hid_bpf_jmp_table.c:502:6: warning: no previous prototype for function 'call_hid_bpf_prog_put_deferred' [-Wmissing-prototypes]
>    void call_hid_bpf_prog_put_deferred(struct work_struct *work)
>         ^
>    drivers/hid/bpf/hid_bpf_jmp_table.c:502:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
>    void call_hid_bpf_prog_put_deferred(struct work_struct *work)
>    ^
>    static
>    1 warning generated.
>
>
> vim +/call_hid_bpf_prog_put_deferred +502 drivers/hid/bpf/hid_bpf_jmp_table.c
>
> f5c27da4e3c8a2 Benjamin Tissoires 2022-11-03  501
> 0baef37335dd4d Benjamin Tissoires 2022-11-03 @502  void call_hid_bpf_prog_put_deferred(struct work_struct *work)
> f5c27da4e3c8a2 Benjamin Tissoires 2022-11-03  503  {
> ade9207f04dc40 Benjamin Tissoires 2023-01-06  504       /* kept around for patch readability, to be dropped in the next commmit */
> f5c27da4e3c8a2 Benjamin Tissoires 2022-11-03  505  }
> f5c27da4e3c8a2 Benjamin Tissoires 2022-11-03  506
>

Oops, this function should have been dropped in 8/9 "HID: bpf: clean
up entrypoint". It's now dead code. I'll fix it in v2.

Cheers,
Benjamin

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




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