On Mon, 28 Jan 2019 at 18:29, Jakub Kicinski
<[email protected]> wrote:
>
> When prog array is updated with bpftool users often refer
> to the map via the ID.  Unfortunately, that's likely
> to lead to confusion because prog arrays get flushed when
> the last user reference is gone.  If there is no other
> reference bpftool will create one, update successfully
> just to close the map again and have it flushed.
>
> Warn about this case in non-JSON mode.
>
> If the problem continues causing confusion we can remove
> the support for referring to a map by ID for prog array
> update completely.  For now it seems like the potential
> inconvenience to users who know what they're doing outweighs
> the benefit.
>
> Signed-off-by: Jakub Kicinski <[email protected]>
> Reviewed-by: Quentin Monnet <[email protected]>

All good for me!
Quentin

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