diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2018-01-26 23:33:43 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-01-27 01:42:06 +0100 |
| commit | 53fbf5719aab34e747ec32a41ff55bed07d16406 (patch) | |
| tree | a4b380e5767d367d95df93ec063e96ca3b10aae6 /arch/powerpc/net | |
| parent | bpf, s390x: remove obsolete exception handling from div/mod (diff) | |
| download | linux-53fbf5719aab34e747ec32a41ff55bed07d16406.tar.xz linux-53fbf5719aab34e747ec32a41ff55bed07d16406.zip | |
bpf, ppc64: 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 ppc64 JIT.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'arch/powerpc/net')
| -rw-r--r-- | arch/powerpc/net/bpf_jit_comp64.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c index 217a78e84865..0a34b0cec7b7 100644 --- a/arch/powerpc/net/bpf_jit_comp64.c +++ b/arch/powerpc/net/bpf_jit_comp64.c @@ -381,10 +381,6 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, goto bpf_alu32_trunc; case BPF_ALU | BPF_DIV | BPF_X: /* (u32) dst /= (u32) src */ case BPF_ALU | BPF_MOD | BPF_X: /* (u32) dst %= (u32) src */ - PPC_CMPWI(src_reg, 0); - PPC_BCC_SHORT(COND_NE, (ctx->idx * 4) + 12); - PPC_LI(b2p[BPF_REG_0], 0); - PPC_JMP(exit_addr); if (BPF_OP(code) == BPF_MOD) { PPC_DIVWU(b2p[TMP_REG_1], dst_reg, src_reg); PPC_MULW(b2p[TMP_REG_1], src_reg, @@ -395,10 +391,6 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, goto bpf_alu32_trunc; case BPF_ALU64 | BPF_DIV | BPF_X: /* dst /= src */ case BPF_ALU64 | BPF_MOD | BPF_X: /* dst %= src */ - PPC_CMPDI(src_reg, 0); - PPC_BCC_SHORT(COND_NE, (ctx->idx * 4) + 12); - PPC_LI(b2p[BPF_REG_0], 0); - PPC_JMP(exit_addr); if (BPF_OP(code) == BPF_MOD) { PPC_DIVD(b2p[TMP_REG_1], dst_reg, src_reg); PPC_MULD(b2p[TMP_REG_1], src_reg, |