diff options
| author | Jiong Wang <jiong.wang@netronome.com> | 2019-02-22 22:36:03 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-23 14:35:16 +0100 |
| commit | fbcf59a9a8a286d2e36564e1e3aead0e62283b51 (patch) | |
| tree | 70c4c8a904ab2a89346fd6b9e61ef480230f5d76 /drivers/net/ethernet | |
| parent | 391dcf93530e9de4873626942c7a5daf232e4398 (diff) | |
nfp: bpf: fix code-gen bug on BPF_ALU | BPF_XOR | BPF_K
[ Upstream commit 71c190249f0ced5b26377ea6bf829ab3af77a40c ]
The intended optimization should be A ^ 0 = A, not A ^ -1 = A.
Fixes: cd7df56ed3e6 ("nfp: add BPF to NFP code translator")
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/bpf/jit.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/jit.c b/drivers/net/ethernet/netronome/nfp/bpf/jit.c index 239dfbe8a0a1..3105ee5bbf8e 100644 --- a/drivers/net/ethernet/netronome/nfp/bpf/jit.c +++ b/drivers/net/ethernet/netronome/nfp/bpf/jit.c @@ -1017,7 +1017,7 @@ static int xor_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) static int xor_imm(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) { - return wrp_alu32_imm(nfp_prog, meta, ALU_OP_XOR, !~meta->insn.imm); + return wrp_alu32_imm(nfp_prog, meta, ALU_OP_XOR, !meta->insn.imm); } static int and_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) |