diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2018-01-27 01:33:45 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-01-27 03:42:06 +0300 |
| commit | 1fb5c9c622c559e1524a419358c78397be822dda (patch) | |
| tree | be4ae2868b334228f59e2bd0cc16c6678bf9c223 /arch/mips/net/ebpf_jit.c | |
| parent | 740d52c646d748bf439ab3398359c3257efd022e (diff) | |
| download | linux-1fb5c9c622c559e1524a419358c78397be822dda.tar.xz | |
bpf, mips64: remove obsolete exception handling from div/mod
Since we've changed div/mod exception handling for src_reg in
eBPF verifier itself, remove the leftovers from mips64 JIT.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: David Daney <david.daney@cavium.com>
Reviewed-by: David Daney <david.daney@cavium.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'arch/mips/net/ebpf_jit.c')
| -rw-r--r-- | arch/mips/net/ebpf_jit.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/arch/mips/net/ebpf_jit.c b/arch/mips/net/ebpf_jit.c index 4e347030ed2c..296f1410ae5c 100644 --- a/arch/mips/net/ebpf_jit.c +++ b/arch/mips/net/ebpf_jit.c @@ -860,11 +860,6 @@ static int build_one_insn(const struct bpf_insn *insn, struct jit_ctx *ctx, break; case BPF_DIV: case BPF_MOD: - b_off = b_imm(exit_idx, ctx); - if (is_bad_offset(b_off)) - return -E2BIG; - emit_instr(ctx, beq, src, MIPS_R_ZERO, b_off); - emit_instr(ctx, movz, MIPS_R_V0, MIPS_R_ZERO, src); emit_instr(ctx, ddivu, dst, src); if (bpf_op == BPF_DIV) emit_instr(ctx, mflo, dst); @@ -943,11 +938,6 @@ static int build_one_insn(const struct bpf_insn *insn, struct jit_ctx *ctx, break; case BPF_DIV: case BPF_MOD: - b_off = b_imm(exit_idx, ctx); - if (is_bad_offset(b_off)) - return -E2BIG; - emit_instr(ctx, beq, src, MIPS_R_ZERO, b_off); - emit_instr(ctx, movz, MIPS_R_V0, MIPS_R_ZERO, src); emit_instr(ctx, divu, dst, src); if (bpf_op == BPF_DIV) emit_instr(ctx, mflo, dst); |