selftests/bpf: Add testcase for async callback return value failure

2023-10-09T21:11:17+00:00

A previous commit updated the verifier to print an accurate failure message for when someone specifies a nonzero return value from an async callback. This adds a testcase for validating that the verifier emits the correct message in such a case. Signed-off-by: David Vernet Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20231009161414.235829-2-void@manifault.com

kernel/linux.git/tools/testing/selftests/bpf/progs/timer_failure.c, branch v6.7

selftests/bpf: Add testcase for async callback return value failure