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authorAlexei Starovoitov <ast@fb.com>2016-04-27 18:56:21 -0700
committerDavid S. Miller <davem@davemloft.net>2016-04-28 17:29:45 -0400
commit6aff67c85c9e5a4bc99e5211c1bac547936626ca (patch)
tree3be9fa8e180334d6f8e0c5edb5e47f8113f4b2f4 /samples
parent92117d8443bc5afacc8d5ba82e541946310f106e (diff)
downloadlinux-6aff67c85c9e5a4bc99e5211c1bac547936626ca.tar.gz
bpf: fix check_map_func_compatibility logic
The commit 35578d798400 ("bpf: Implement function bpf_perf_event_read() that get the selected hardware PMU conuter") introduced clever way to check bpf_helper<->map_type compatibility. Later on commit a43eec304259 ("bpf: introduce bpf_perf_event_output() helper") adjusted the logic and inadvertently broke it. Get rid of the clever bool compare and go back to two-way check from map and from helper perspective. Fixes: a43eec304259 ("bpf: introduce bpf_perf_event_output() helper") Reported-by: Jann Horn <jannh@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples')
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