[linux-next:master 5835/8914] kernel/bpf/bpf_lsm.c:51:26: warning: variable 'args' set but not used

[linux-next:master 5835/8914] kernel/bpf/bpf_lsm.c:51:26: warning: variable 'args' set but not used

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   f2528c29385819a84480cacef4886b049761e2c5
commit: 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e [5835/8914] bpf: per-cgroup lsm flavor
config: arm-buildonly-randconfig-r003-20220710 (https://download.01.org/0day-ci/archive/20220710/202207102321.jwphabAL-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 6ce63e267aab79ca87bf63453d34dd3909ab978d)
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 arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e
        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 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e
        # 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=arm SHELL=/bin/bash kernel/bpf/

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

All warnings (new ones prefixed by >>):

>> kernel/bpf/bpf_lsm.c:51:26: warning: variable 'args' set but not used [-Wunused-but-set-variable]
           const struct btf_param *args;
                                   ^
   1 warning generated.


vim +/args +51 kernel/bpf/bpf_lsm.c

    47	
    48	void bpf_lsm_find_cgroup_shim(const struct bpf_prog *prog,
    49				     bpf_func_t *bpf_func)
    50	{
  > 51		const struct btf_param *args;
    52	
    53		if (btf_type_vlen(prog->aux->attach_func_proto) < 1 ||
    54		    btf_id_set_contains(&bpf_lsm_current_hooks,
    55					prog->aux->attach_btf_id)) {
    56			*bpf_func = __cgroup_bpf_run_lsm_current;
    57			return;
    58		}
    59	
    60		args = btf_params(prog->aux->attach_func_proto);
    61	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp