mbox series

[v3,bpf-next,0/3] bpf: Add array support to btf_struct_access

Message ID 20191107014639.384014-1-kafai@fb.com
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Series bpf: Add array support to btf_struct_access | expand

Message

Martin KaFai Lau Nov. 7, 2019, 1:46 a.m. UTC 
This series adds array support to btf_struct_access().
Please see individual patch for details.

v3:
- Fixed an interpreter issue that missed accounting
  for insn->off

v2:
- Fix a divide-by-zero when there is empty array in
  a struct (e.g. "__u8 __cloned_offset[0];" in skbuff)
- Add 'static' to a global var in prog_tests/kfree_skb.c

Martin KaFai Lau (3):
  bpf: Account for insn->off when doing bpf_probe_read_kernel
  bpf: Add array support to btf_struct_access
  bpf: Add cb access in kfree_skb test

 kernel/bpf/btf.c                              | 187 +++++++++++++++---
 kernel/bpf/core.c                             |   2 +-
 .../selftests/bpf/prog_tests/kfree_skb.c      |  54 +++--
 tools/testing/selftests/bpf/progs/kfree_skb.c |  25 ++-
 4 files changed, 221 insertions(+), 47 deletions(-)