Using __get_task_comm() to read the task comm ensures that the name is always NUL-terminated, regardless of the source string. This approach also facilitates future extensions to the task comm.
Signed-off-by: Yafang Shao <[email protected]> Cc: Andrii Nakryiko <[email protected]> Cc: Eduard Zingerman <[email protected]> Cc: Mykola Lysenko <[email protected]> --- tools/testing/selftests/bpf/bpf_testmod/bpf_testmod-events.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod-events.h b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod-events.h index 11ee801e75e7..e5df95b56c53 100644 --- a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod-events.h +++ b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod-events.h @@ -20,7 +20,7 @@ TRACE_EVENT(bpf_testmod_test_read, ), TP_fast_assign( __entry->pid = task->pid; - memcpy(__entry->comm, task->comm, TASK_COMM_LEN); + __get_task_comm(__entry->comm, TASK_COMM_LEN, task); __entry->off = ctx->off; __entry->len = ctx->len; ), -- 2.39.1
