tlinks[BPF_TRAMP_FENTRY].links[0] = link;
tlinks[BPF_TRAMP_FENTRY].nr_links = 1;
+ /* BPF_TRAMP_F_RET_FENTRY_RET is only used by bpf_struct_ops,
+ * and it must be used alone.
+ */
flags = model->ret_size > 0 ? BPF_TRAMP_F_RET_FENTRY_RET : 0;
return arch_prepare_bpf_trampoline(NULL, image, image_end,
model, flags, tlinks, NULL);
goto unlock;
}
- /* Error during st_ops->reg(). It is very unlikely since
- * the above init_member() should have caught it earlier
- * before reg(). The only possibility is if there was a race
- * in registering the struct_ops (under the same name) to
+ /* Error during st_ops->reg(). Can happen if this struct_ops needs to be
+ * verified as a whole, after all init_member() calls. Can also happen if
+ * there was a race in registering the struct_ops (under the same name) to
* a sub-system through different struct_ops's maps.
*/
set_memory_nx((long)st_map->image, 1);