Re: [linux-next:master 6404/13375] drivers/i3c/master/mipi-i3c-hci/core.c:780:34: warning: unused variable 'i3c_hci_of_match'

[Souptick Joarder <jrdr.linux@gmail.com>]

On Tue, Dec 15, 2020 at 1:31 AM kernel test robot <lkp@intel.com> wrote:
>
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head:   7bba37a1591369e2e506d599b8f5d7d0516b2dbc
> commit: 9ad9a52cce2828d932ae9495181e3d6414f72c07 [6404/13375] i3c/master: introduce the mipi-i3c-hci driver
> config: x86_64-randconfig-a013-20201215 (attached as .config)
> compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project d38205144febf4dc42c9270c6aa3d978f1ef65e1)
> 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/next/linux-next.git/commit/?id=9ad9a52cce2828d932ae9495181e3d6414f72c07
>         git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>         git fetch --no-tags linux-next master
>         git checkout 9ad9a52cce2828d932ae9495181e3d6414f72c07
>         # 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/i3c/master/mipi-i3c-hci/core.c:780:34: warning: unused variable 'i3c_hci_of_match' [-Wunused-const-variable]
>    static const struct of_device_id i3c_hci_of_match[] = {
>                                     ^
>    1 warning generated.

CONFIG_OF not enabled.

Does it make sense to remove of_match_ptr() ?

static struct platform_driver i3c_hci_driver = {
.probe = i3c_hci_probe,
.remove = i3c_hci_remove,
.driver = {
.name = "mipi-i3c-hci",
.of_match_table = of_match_ptr(i3c_hci_of_match),
},


>
> vim +/i3c_hci_of_match +780 drivers/i3c/master/mipi-i3c-hci/core.c
>
>    779
>  > 780  static const struct of_device_id i3c_hci_of_match[] = {
>    781          { .compatible = "mipi-i3c-hci", },
>    782          {},
>    783  };
>    784  MODULE_DEVICE_TABLE(of, i3c_hci_of_match);
>    785
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org