linux-kernel - Re: [RFC PATCH net-next 2/9] net/sched: cls_flower: prepare fl_{set,dump}_key_flags() for ENC

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Date: Wed, 26 Jun 2024 11:55:31 +0000
From: Asbjørn Sloth Tønnesen <ast@...erby.net>
To: Davide Caratti <dcaratti@...hat.com>
Cc: Ilya Maximets <i.maximets@....org>, Jamal Hadi Salim <jhs@...atatu.com>,
 Cong Wang <xiyou.wangcong@...il.com>, Jiri Pirko <jiri@...nulli.us>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 David Ahern <dsahern@...nel.org>, Simon Horman <horms@...nel.org>,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH net-next 2/9] net/sched: cls_flower: prepare
 fl_{set,dump}_key_flags() for ENC_FLAGS

Hi Davide,

On 6/26/24 10:01 AM, Davide Caratti wrote:
> On Wed, Jun 26, 2024 at 11:49 AM Davide Caratti <dcaratti@...hat.com> wrote:
>>
>> So, we must htonl() the policy mask in the second hunk in patch 7,something like:

Good catch.

> or maybe better (but still untested), use NLA_BE32, like netfilter does in [1]
> 
> [1] https://elixir.bootlin.com/linux/latest/A/ident/NF_NAT_RANGE_MASK

Yes, that is better. It should work, as it triggers a htonl() in nla_validate_mask().

-- 
Best regards
Asbjørn Sloth Tønnesen
Network Engineer
Fiberby - AS42541