Software event output is only enabled by a few prog types right now (TC, LWT out, XDP, sockops). Many other skb based prog types need bpf_skb_event_output to produce software event. More prog types are enabled to access bpf_skb_event_output in this patch. v9 changes: add "Acked-by" field. v8 changes: No actual change, just cc to netdev@xxxxxxxxxxxxxxx and bpf@xxxxxxxxxxxxxxx. v7 patches are acked by Song Liu. v7 changes: Reformat from hints by scripts/checkpatch.pl, including Song's comment on signed-off-by name to captical case in cover letter. 3 of hints are ignored: 1. new file mode. 2. SPDX-License-Identifier for event_output.c since all files under this dir have no such line. 3. "Macros ... enclosed in parentheses" for macro in event_output.c due to code's nature. Change patch 02 subject "bpf:..." to "selftests/bpf:..." v6 changes: Fix Signed-off-by, fix fixup map creation. v5 changes: Fix typos, reformat comments in event_output.c, move revision history to cover letter. v4 changes: Reformating log message. v3 changes: Reformating log message. v2 changes: Reformating log message. Allan Zhang (2): bpf: Allow bpf_skb_event_output for a few prog types selftests/bpf: Add selftests for bpf_perf_event_output net/core/filter.c | 6 ++ tools/testing/selftests/bpf/test_verifier.c | 12 ++- .../selftests/bpf/verifier/event_output.c | 94 +++++++++++++++++++ 3 files changed, 111 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/bpf/verifier/event_output.c -- 2.22.0.410.gd8fdbe21b5-goog
