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| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2019-01-22 22:45:20 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2019-01-23 17:35:31 -0800 |
| commit | 52875a04f4b26e7ef30a288ea096f7cfec0e93cd (patch) | |
| tree | ef2b72219c9eae090adb9a35d75bc64b2b9ed50c /lib/dec_and_lock.c | |
| parent | e2ae4ca266a1c9a0163738129506dbc63d5cca80 (diff) | |
| download | linux-52875a04f4b26e7ef30a288ea096f7cfec0e93cd.tar.bz2 | |
bpf: verifier: remove dead code
Instead of overwriting dead code with jmp -1 instructions
remove it completely for root. Adjust verifier state and
line info appropriately.
v2:
- adjust func_info (Alexei);
- make sure first instruction retains line info (Alexei).
v4: (Yonghong)
- remove unnecessary if (!insn to remove) checks;
- always keep last line info if first live instruction lacks one.
v5: (Martin Lau)
- improve and clarify comments.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'lib/dec_and_lock.c')
0 files changed, 0 insertions, 0 deletions