linux-kernel - Re: [PATCH v3] ipv6: Correct/silence an endian warning in ip6_multipath_l3

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Message-ID: <ZV3EmcsEqfFuvW4P@infradead.org>
Date:   Wed, 22 Nov 2023 01:06:33 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Kunwu Chan <chentao@...inos.cn>
Cc:     Christoph Hellwig <hch@...radead.org>, davem@...emloft.net,
        dsahern@...nel.org, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, jkbs@...hat.com, kunwu.chan@...mail.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] ipv6: Correct/silence an endian warning in
 ip6_multipath_l3_keys

On Wed, Nov 22, 2023 at 05:04:49PM +0800, Kunwu Chan wrote:
> Hi Christoph,
> Thanks for your reply.
> I also can't guarantee that it's the right thing to do. Just wanted to
> dispel this warning. If you have any better way, please let me know.

The most likely reason is that it needs an endianess conversion.  I
don't know the answer either, but actually spending a few minutes
trying to understand the code should allow you to find it out quickly.

Removing a warning for it's own sake when you don't understand it is
never a good idea.