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. Yonghong Song (8): 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: add WARN_ONCE if bpf_seq_read show() return a positive number 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 | 20 +++++++++--- include/net/ip6_fib.h | 7 ++++ kernel/bpf/bpf_iter.c | 44 +++++++++++++++----------- 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, 178 insertions(+), 84 deletions(-) create mode 100644 tools/testing/selftests/bpf/README.rst -- 2.24.1