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| author | Tycho Andersen <tycho.andersen@canonical.com> | 2015-09-10 18:25:07 -0600 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-09-11 14:52:41 -0700 |
| commit | 19539ce783dd27768d4f7f3b753152bf983db65b (patch) | |
| tree | 9b60e9e3326ed629ada5b85bbfbdb018550eb223 /net/wimax | |
| parent | 1853c949646005b5959c483becde86608f548f24 (diff) | |
| download | op-kernel-dev-19539ce783dd27768d4f7f3b753152bf983db65b.zip op-kernel-dev-19539ce783dd27768d4f7f3b753152bf983db65b.tar.gz | |
ebpf: emit correct src_reg for conditional jumps
Instead of always emitting BPF_REG_X, let's emit BPF_REG_X only when the
source actually is BPF_X. This causes programs generated by the classic
converter to not be importable via bpf(), as the eBPF verifier checks that
the src_reg is correct or 0. While not a problem yet, this will be a
problem when BPF_PROG_DUMP lands, and we can potentially dump and re-import
programs generated by the converter.
Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
CC: Alexei Starovoitov <ast@kernel.org>
CC: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/wimax')
0 files changed, 0 insertions, 0 deletions
