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| author | Jann Horn <jannh@google.com> | 2020-03-30 19:03:24 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-03-30 21:53:52 +0300 |
| commit | 0fc31b10cfb7e5158bafb9d30839fbc9241c40c4 (patch) | |
| tree | 63fa1cc54f7facfd7258bf235990169d858148b3 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 604dca5e3af1db98bd123b7bfc02b017af99e3a0 (diff) | |
| download | linux-0fc31b10cfb7e5158bafb9d30839fbc9241c40c4.tar.xz | |
bpf: Simplify reg_set_min_max_inv handling
reg_set_min_max_inv() contains exactly the same logic as reg_set_min_max(),
just flipped around. While this makes sense in a cBPF verifier (where ALU
operations are not symmetric), it does not make sense for eBPF.
Replace reg_set_min_max_inv() with a helper that flips the opcode around,
then lets reg_set_min_max() do the complicated work.
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200330160324.15259-4-daniel@iogearbox.net
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions