Hi Sean,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.18-rc1 next-20180618]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Sean-Young/bpf-attach-type-BPF_LIRC_MODE2-should-not-depend-on-CONFIG_CGROUP_BPF/20180619-023056
config: i386-tinyconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   In file included from kernel///events/core.c:45:0:

quoted

include/linux/bpf.h:710:1: error: expected identifier or '(' before '{' token

    {
    ^

vim +710 include/linux/bpf.h

   707	
   708	int sockmap_get_from_fd(const union bpf_attr *attr, int type,
   709				struct bpf_prog *prog);
 > 710	{
   711		return -EINVAL;
   712	}
   713	#endif
   714	

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