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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-09-29 16:28:52 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-09-29 16:28:52 -0700 |
| commit | 8f697e574012cc73b6b0dcbf30d88a3a0f43b78f (patch) | |
| tree | a6b16bcf33ad08e03837b61eed2fffb31118f1f3 /kernel/bpf/core.c | |
| parent | 221bcb24c6530be17468fdcdbf91299aba32a693 (diff) | |
| parent | 9ffecb10283508260936b96022d4ee43a7798b4c (diff) | |
| download | linux-8f697e574012cc73b6b0dcbf30d88a3a0f43b78f.tar.gz linux-8f697e574012cc73b6b0dcbf30d88a3a0f43b78f.tar.bz2 linux-8f697e574012cc73b6b0dcbf30d88a3a0f43b78f.zip | |
Merge tag 'v4.3-rc3' into next
Merge with Linux 4.3-rc3 to bring in MFD DA9062 changes to merge DA9062
OnKey driver.
Diffstat (limited to 'kernel/bpf/core.c')
| -rw-r--r-- | kernel/bpf/core.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index c5bedc82bc1c..67c380cfa9ca 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -177,6 +177,7 @@ noinline u64 __bpf_call_base(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5) { return 0; } +EXPORT_SYMBOL_GPL(__bpf_call_base); /** * __bpf_prog_run - run eBPF program on a given context @@ -449,11 +450,15 @@ select_insn: tail_call_cnt++; - prog = READ_ONCE(array->prog[index]); + prog = READ_ONCE(array->ptrs[index]); if (unlikely(!prog)) goto out; - ARG1 = BPF_R1; + /* ARG1 at this point is guaranteed to point to CTX from + * the verifier side due to the fact that the tail call is + * handeled like a helper, that is, bpf_tail_call_proto, + * where arg1_type is ARG_PTR_TO_CTX. + */ insn = prog->insnsi; goto select_insn; out: |