@@ -6696,34 +6696,19 @@ static int bpf_object_load_prog_instance(struct bpf_object *obj, struct bpf_prog
free(log_buf);
goto retry_load;
}
- ret = errno ? -errno : -LIBBPF_ERRNO__LOAD;
+
+ ret = -errno;
cp = libbpf_strerror_r(errno, errmsg, sizeof(errmsg));
pr_warn("prog '%s': BPF program load failed: %s\n", prog->name, cp);
pr_perm_msg(ret);
if (log_buf && log_buf[0] != '\0') {
- ret = -LIBBPF_ERRNO__VERIFY;
pr_warn("prog '%s': -- BEGIN PROG LOAD LOG --\n%s-- END PROG LOAD LOG --\n",
prog->name, log_buf);
}
if (insns_cnt >= BPF_MAXINSNS) {
pr_warn("prog '%s': program too large (%d insns), at most %d insns\n",
prog->name, insns_cnt, BPF_MAXINSNS);
- ret = -LIBBPF_ERRNO__PROG2BIG;
- } else if (prog->type != BPF_PROG_TYPE_KPROBE) {
- /* Wrong program type? */
- int fd;
-
- load_attr.expected_attach_type = 0;
- load_attr.log_buf = NULL;
- load_attr.log_size = 0;
- fd = bpf_prog_load(BPF_PROG_TYPE_KPROBE, prog_name, license,
- insns, insns_cnt, &load_attr);
- if (fd >= 0) {
- close(fd);
- ret = -LIBBPF_ERRNO__PROGTYPE;
- goto out;
- }
}
out:
Instead of rewriting error code returned by the kernel of prog load with libbpf-sepcific variants pass through the original error. There is now also no need to have a backup generic -LIBBPF_ERRNO__LOAD fallback error as bpf_prog_load() guarantees that errno will be properly set no matter what. Also drop a completely outdated and pretty useless BPF_PROG_TYPE_KPROBE guess logic. It's not necessary and neither it's helpful in modern BPF applications. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> --- tools/lib/bpf/libbpf.c | 19 ++----------------- 1 file changed, 2 insertions(+), 17 deletions(-)