On 10/01/2018 12:45 PM, Lorenz Bauer wrote: > This patch set adds a new flag BPF_F_ZERO_SEED, which allows > forcing the seed used by hash maps to zero. This makes > it possible to write deterministic tests. > > Based on an off-list conversation with Alexei Starovoitov and > Daniel Borkmann. > > Lorenz Bauer (3): > bpf: allow zero-initializing hash map seed > tools: sync linux/bpf.h > tools: add selftest for BPF_F_ZERO_SEED > > include/uapi/linux/bpf.h | 2 + > kernel/bpf/hashtab.c | 8 ++- > tools/include/uapi/linux/bpf.h | 2 + > tools/testing/selftests/bpf/test_maps.c | 67 +++++++++++++++++++++---- > 4 files changed, 66 insertions(+), 13 deletions(-) > Please respin with proper SoB for each patch and non-empty commit description. I think patch 1 should also have a more elaborate commit description on the use case for BPF_F_ZERO_SEED, and I think also a better comment in the uapi header that this is only meant for testing and not production use. Thanks, Daniel
