Re: [PATCH bpf-next v9 9/9] selftests/bpf: Add tests to verify map create failure log
From: Alexei Starovoitov <hidden>
Date: 2026-02-04 20:14:59
Also in:
bpf, linux-kselftest, lkml
On Mon, Feb 2, 2026 at 6:43 AM Leon Hwang [off-list ref] wrote:
+
+#define BPF_LOG_FIXED 8
+
+static void test_map_create(enum bpf_map_type map_type, const char *map_name,
+ struct bpf_map_create_opts *opts, const char *exp_msg)
+{
+ const int key_size = 4, value_size = 4, max_entries = 1;
+ char log_buf[128];
+ int fd;
+ LIBBPF_OPTS(bpf_log_opts, log_opts);
+
+ log_buf[0] = '\0';
+ log_opts.log_buf = log_buf;
+ log_opts.log_size = sizeof(log_buf);
+ log_opts.log_level = BPF_LOG_FIXED;Why? Which part of the test needs the log with this flag?