From: Alexei Starovoitov <ast@plumgrid.com>Date: Fri, 23 Oct 2015 14:58:19 -0700> exported perf symbols are GPL only, mark eBPF helper functions> used in tracing as GPL only as well.> > Suggested-by: Peter Zijlstra <a.p.zijlstra@chello.nl>> Signed-off-by: Alexei Starovoitov <ast@kernel.org>Applied.