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Date:   Mon, 01 Jun 2020 12:01:25 -0700 (PDT)
From:   David Miller <>
Subject: Re: [PATCH net-next] cls_flower: remove mpls_opts_policy

From: Guillaume Nault <>
Date: Sat, 30 May 2020 20:49:56 +0200

> Compiling with W=1 gives the following warning:
> net/sched/cls_flower.c:731:1: warning: ‘mpls_opts_policy’ defined but not used [-Wunused-const-variable=]
> The TCA_FLOWER_KEY_MPLS_OPTS contains a list of
> TCA_FLOWER_KEY_MPLS_OPTS_LSE. Therefore, the attributes all have the
> same type and we can't parse the list with nla_parse*() and have the
> attributes validated automatically using an nla_policy.
> fl_set_key_mpls_opts() properly verifies that all attributes in the
> list are TCA_FLOWER_KEY_MPLS_OPTS_LSE. Then fl_set_key_mpls_lse()
> uses nla_parse_nested() on all these attributes, thus verifying that
> they have the NLA_F_NESTED flag. So we can safely drop the
> mpls_opts_policy.
> Reported-by: kbuild test robot <>
> Signed-off-by: Guillaume Nault <>

Applied, thank you.

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