On Wed, May 13, 2020 at 11:03 AM Yonghong Song <yhs@xxxxxx> wrote:
>
> Commit ae24345da54e ("bpf: Implement an interface to register
> bpf_iter targets") and its subsequent commits in the same patch set
> introduced bpf iterator, a way to run bpf program when iterating
> kernel data structures.
>
> This patch set addressed some followup issues. One big change
> is to allow target to pass ctx arg register types to verifier
> for verification purpose. Please see individual patch for details.
>
> Changelogs:
> v1 -> v2:
> . add "const" qualifier to struct bpf_iter_reg for
> bpf_iter_[un]reg_target, and this results in
> additional "const" qualifiers in some other places
> . drop the patch which will issue WARN_ONCE if
> seq_ops->show() returns a positive value.
> If this does happen, code review should spot
> this or author does know what he is doing.
> In the future, we do want to implement a
> mechanism to find out all registered targets
> so we will be aware of new additions.
>
> Yonghong Song (7):
> tools/bpf: selftests : explain bpf_iter test failures with llvm 10.0.0
> bpf: change btf_iter func proto prefix to "bpf_iter_"
> bpf: add comments to interpret bpf_prog return values
> bpf: net: refactor bpf_iter target registration
> bpf: change func bpf_iter_unreg_target() signature
> bpf: enable bpf_iter targets registering ctx argument types
> samples/bpf: remove compiler warnings
>
> include/linux/bpf.h | 22 ++++++++----
> include/net/ip6_fib.h | 7 ++++
> kernel/bpf/bpf_iter.c | 49 +++++++++++++++-----------
> kernel/bpf/btf.c | 15 +++++---
> kernel/bpf/map_iter.c | 23 +++++++-----
> kernel/bpf/task_iter.c | 42 ++++++++++++++--------
> kernel/bpf/verifier.c | 1 -
> net/ipv6/ip6_fib.c | 5 ---
> net/ipv6/route.c | 25 +++++++------
> net/netlink/af_netlink.c | 23 +++++++-----
> samples/bpf/offwaketime_kern.c | 4 +--
> samples/bpf/sockex2_kern.c | 4 +--
> samples/bpf/sockex3_kern.c | 4 +--
> tools/lib/bpf/libbpf.c | 2 +-
> tools/testing/selftests/bpf/README.rst | 43 ++++++++++++++++++++++
> 15 files changed, 183 insertions(+), 86 deletions(-)
> create mode 100644 tools/testing/selftests/bpf/README.rst
>
> --
> 2.24.1
>
For the series:
Acked-by: Andrii Nakryiko <andriin@xxxxxx>
