On Fri, Feb 26, 2021 at 12:49 PM Yonghong Song [off-list ref] wrote:

+ *
+ *             The following are a list of supported map types and their
+ *             respective expected callback signatures:
+ *
+ *             BPF_MAP_TYPE_HASH, BPF_MAP_TYPE_PERCPU_HASH,
+ *             BPF_MAP_TYPE_LRU_HASH, BPF_MAP_TYPE_LRU_PERCPU_HASH,
+ *             BPF_MAP_TYPE_ARRAY, BPF_MAP_TYPE_PERCPU_ARRAY:
+ *                 long (*callback_fn)(struct bpf_map *map, const void *key,
+ *                                     void *value, void *ctx);

This part was causing errors and warnings in bpf-helpers.rst.
I fixed it up while applying.

Thanks a lot for the great work! Really exciting feature!