316930d0 - selftests/bpf: Add more ring buffer test coverage

Fri, 21 Jun 2024 14:08:28 +0000

selftests/bpf: Add more ring buffer test coverageAdd test coverage for reservations beyond the ring buffer size in orderto validate that bpf_ringbuf_reserve() rejects the request with NULL, allother ring buffer tests keep passing as well: # ./vmtest.sh -- ./test_progs -t ringbuf [...] ./test_progs -t ringbuf [ 1.165434] bpf_testmod: loading out-of-tree module taints kernel. [ 1.165825] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel [ 1.284001] tsc: Refined TSC clocksource calibration: 3407.982 MHz [ 1.286871] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc34e357, max_idle_ns: 440795379773 ns [ 1.289555] clocksource: Switched to clocksource tsc #274/1 ringbuf/ringbuf:OK #274/2 ringbuf/ringbuf_n:OK #274/3 ringbuf/ringbuf_map_key:OK #274/4 ringbuf/ringbuf_write:OK #274 ringbuf:OK #275 ringbuf_multi:OK [...]Signed-off-by: Daniel Borkmann Signed-off-by: Andrii Nakryiko [ Test fixups for getting BPF CI back to work ]Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20240621140828.18238-2-daniel@iogearbox.net List of files: /linux-6.15/tools/testing/selftests/bpf/progs/test_ringbuf_write.c

Changes in test_ringbuf_write.c

316930d0 - selftests/bpf: Add more ring buffer test coverage