Hi Alexei,

the following commit causes a failure of my linux build.

    commit 99c55f7d47c0dc6fc64729f37bf435abf43f4c60
    Author: Alexei Starovoitov <ast@plumgrid.com>
    Date:   Fri Sep 26 00:16:57 2014 -0700
     
        bpf: introduce BPF syscall and maps

The error is:        
        
    kernel/built-in.o: In function `sys_bpf':
    (.text+0x3b4fc): undefined reference to `anon_inode_getfd'

My .config (for powerpc arch) is attached.

Best regards,
-Michal