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bpf: Revert bpf_overrid_function() helper changes.

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NACK'd by x86 maintainer.

Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
David S. Miller 2017-11-11 18:24:55 +09:00
commit f3edacbd69
21 changed files with 11 additions and 204 deletions
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3
kernel/bpf/core.c
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@ -1326,9 +1326,6 @@ EVAL4(PROG_NAME_LIST, 416, 448, 480, 512)
bool bpf_prog_array_compatible(struct bpf_array *array,
const struct bpf_prog *fp)
{
if (fp->kprobe_override)
return false;
if (!array->owner_prog_type) {
/* There's no owner yet where we could check for
* compatibility.

2
kernel/bpf/verifier.c
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@ -4357,8 +4357,6 @@ static int fixup_bpf_calls(struct bpf_verifier_env *env)
prog->dst_needed = 1;
if (insn->imm == BPF_FUNC_get_prandom_u32)
bpf_user_rnd_init_once();
if (insn->imm == BPF_FUNC_override_return)
prog->kprobe_override = 1;
if (insn->imm == BPF_FUNC_tail_call) {
/* If we tail call into other programs, we
* cannot make any assumptions since they can