[jolsa-perf:bpf/tracing_multi_new_1 22/23] kernel/bpf/syscall.c:3150:27: error: field 'fops' has incomplete type

[jolsa-perf:bpf/tracing_multi_new_1 22/23] kernel/bpf/syscall.c:3150:27: error: field 'fops' has incomplete type

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git bpf/tracing_multi_new_1
head:   e27bb6c0f6805082ef71568985f74dcefe7ff6ff
commit: dc38a65ab46f4ba538353c1eb7c64ac36202eb54 [22/23] fix
config: i386-randconfig-a003 (https://download.01.org/0day-ci/archive/20220813/202208132235.CyiLD4fT-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git/commit/?id=dc38a65ab46f4ba538353c1eb7c64ac36202eb54
        git remote add jolsa-perf https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
        git fetch --no-tags jolsa-perf bpf/tracing_multi_new_1
        git checkout dc38a65ab46f4ba538353c1eb7c64ac36202eb54
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> kernel/bpf/syscall.c:3150:27: error: field 'fops' has incomplete type
    3150 |         struct ftrace_ops fops;
         |                           ^~~~


vim +/fops +3150 kernel/bpf/syscall.c

  3144	
  3145	struct bpf_tracing_multi_link {
  3146		struct bpf_link link;
  3147		enum bpf_attach_type attach_type;
  3148		struct bpf_tramp_prog tp;
  3149		struct bpf_tramp_id *id;
> 3150		struct ftrace_ops fops;
  3151	};
  3152	

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