Dave Tucker [off-list ref] writes:

This commit adds documentation for the BPF_MAP_TYPE_ARRAY including
kernel version introduced, usage and examples.
It also documents BPF_MAP_TYPE_PERCPU_ARRAY since this is similar.

Signed-off-by: Dave Tucker <redacted>
---
 Documentation/bpf/map_array.rst | 150 ++++++++++++++++++++++++++++++++
 1 file changed, 150 insertions(+)
 create mode 100644 Documentation/bpf/map_array.rst

When you add a new BPF file, you need to add it to the corresponding
index.rst file as well.  Otherwise it won't be part of the docs build
and will, instead, generate the warning you surely saw when you tested
the build...:)

Thanks,

jon