linux-kernel - Re: [PATCH] net_sched: force endianness annotation

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Date:   Mon, 29 Apr 2019 05:09:36 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Nicholas Mc Guire <hofrat@...dl.org>
Cc:     Jamal Hadi Salim <jhs@...atatu.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Jiri Pirko <jiri@...nulli.us>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net_sched: force endianness annotation

On Sun, Apr 28, 2019 at 07:54:59AM +0200, Nicholas Mc Guire wrote:
> While the endiannes is being handled correctly sparse was unhappy with
> the missing annotation as be16_to_cpu()/be32_to_cpu() expects a __be16
> respectively __be32. To mitigate this annotation issue forced annotation
> is introduced. Note that this patch has no impact on the generated binary.

Every __force needs a comment explaining why it actually іs fine in
this particular case.  Even more bonus points for finding a solution
that does not require the __force.