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bpf, x86_64/arm64: remove old ldimm64 artifacts from jits

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For both cases, the verifier is already rejecting such invalid
formed instructions. Thus, remove these artifacts from old times
and align it with ppc64, sparc64 and s390x JITs that don't have
them in the first place.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann
2017-04-27 01:39:31 +02:00
committed by David S. Miller
parent cd5487fb94
commit 7e56fbd27b
2 changed files with 0 additions and 16 deletions
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9
arch/arm64/net/bpf_jit_comp.c
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@@ -604,15 +604,6 @@ emit_cond_jmp:
const struct bpf_insn insn1 = insn[1];
u64 imm64;
if (insn1.code != 0 || insn1.src_reg != 0 ||
insn1.dst_reg != 0 || insn1.off != 0) {
/* Note: verifier in BPF core must catch invalid
* instructions.
*/
pr_err_once("Invalid BPF_LD_IMM64 instruction\n");
return -EINVAL;
}
imm64 = (u64)insn1.imm << 32 | (u32)imm;
emit_a64_mov_i64(dst, imm64, ctx);