When CONFIG_NET is not defined, I hit the following build error:
kernel/trace/bpf_trace.o:(.rodata+0x110): undefined reference to
`bpf_prog_test_run_raw_tp'
Commit 1b4d60ec162f ("bpf: Enable BPF_PROG_TEST_RUN for raw_tracepoint")
added test_run support for raw_tracepoint in /kernel/trace/bpf_trace.c.
But the test_run function bpf_prog_test_run_raw_tp is defined in
net/bpf/test_run.c, only available with CONFIG_NET=y.
Adding a CONFIG_NET guard for
.test_run = bpf_prog_test_run_raw_tp;
fixed the above build issue.
Fixes: 1b4d60ec162f ("bpf: Enable BPF_PROG_TEST_RUN for raw_tracepoint")
Cc: Song Liu <[email protected]>
Signed-off-by: Yonghong Song <[email protected]>
---
kernel/trace/bpf_trace.c | 2 ++
1 file changed, 2 insertions(+)
Note: I found the above issue when I reviewed the following patch:
https://lore.kernel.org/bpf/[email protected]/T
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index a136a6a63a71..a2a4535b6277 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -1780,7 +1780,9 @@ const struct bpf_verifier_ops raw_tracepoint_verifier_ops
= {
};
const struct bpf_prog_ops raw_tracepoint_prog_ops = {
+#ifdef CONFIG_NET
.test_run = bpf_prog_test_run_raw_tp,
+#endif
};
const struct bpf_verifier_ops tracing_verifier_ops = {
--
2.24.1
