netdev - Re: [PATCH bpf-next 2/2] libbpf: xsk: move barriers from libbpf

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Date:   Wed, 10 Mar 2021 16:06:05 -0800
From:   Jonathan Lemon <jonathan.lemon@...il.com>
To:     Björn Töpel <bjorn.topel@...il.com>
Cc:     ast@...nel.org, daniel@...earbox.net, netdev@...r.kernel.org,
        bpf@...r.kernel.org, andrii@...nel.org,
        Björn Töpel <bjorn.topel@...el.com>,
        magnus.karlsson@...el.com, maximmi@...dia.com,
        ciara.loftus@...el.com
Subject: Re: [PATCH bpf-next 2/2] libbpf: xsk: move barriers from
 libbpf_util.h to xsk.h

On Wed, Mar 10, 2021 at 09:09:29AM +0100, Björn Töpel wrote:
> From: Björn Töpel <bjorn.topel@...el.com>
> 
> The only user of libbpf_util.h is xsk.h. Move the barriers to xsk.h,
> and remove libbpf_util.h. The barriers are used as an implementation
> detail, and should not be considered part of the stable API.

Does that mean that anything else which uses the same type of
shared rings (bpf ringbuffer, io_uring, zctap) have to implement
the same primitives that xsk.h has?
-- 
Jonathan