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Date:   Tue, 9 Jul 2019 13:59:47 +1000
From:   Stephen Rothwell <sfr@canb.auug.org.au>
To:     Pablo Neira Ayuso <pablo@netfilter.org>,
        NetFilter <netfilter-devel@vger.kernel.org>,
        Masahiro Yamada <yamada.masahiro@socionext.com>,
        David Miller <davem@davemloft.net>,
        Networking <netdev@vger.kernel.org>
Cc:     Linux Next Mailing List <linux-next@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        wenxu <wenxu@ucloud.cn>
Subject: Re: linux-next: build failure after merge of the netfilter-next
 tree
Message-ID: <20190709135947.225603dc@canb.auug.org.au>
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Hi all,

On Mon, 8 Jul 2019 13:39:58 +1000 Stephen Rothwell <sfr@canb.auug.org.au> w=
rote:
>
> After merging the netfilter-next tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
>=20
> In file included from <command-line>:
> include/net/netfilter/nft_meta.h:6:21: warning: 'key' is narrower than va=
lues of its type
>   enum nft_meta_keys key:8;
>                      ^~~
> include/net/netfilter/nft_meta.h:6:21: error: field 'key' has incomplete =
type
> include/net/netfilter/nft_meta.h:8:22: warning: 'dreg' is narrower than v=
alues of its type
>    enum nft_registers dreg:8;
>                       ^~~~
> include/net/netfilter/nft_meta.h:8:22: error: field 'dreg' has incomplete=
 type
> include/net/netfilter/nft_meta.h:9:22: warning: 'sreg' is narrower than v=
alues of its type
>    enum nft_registers sreg:8;
>                       ^~~~
> include/net/netfilter/nft_meta.h:9:22: error: field 'sreg' has incomplete=
 type
> include/net/netfilter/nft_meta.h:13:32: error: array type has incomplete =
element type 'struct nla_policy'
>  extern const struct nla_policy nft_meta_policy[];
>                                 ^~~~~~~~~~~~~~~
> include/net/netfilter/nft_meta.h:17:22: warning: 'struct nlattr' declared=
 inside parameter list will not be visible outside of this definition or de=
claration
>          const struct nlattr * const tb[]);
>                       ^~~~~~
> include/net/netfilter/nft_meta.h:16:22: warning: 'struct nft_expr' declar=
ed inside parameter list will not be visible outside of this definition or =
declaration
>          const struct nft_expr *expr,
>                       ^~~~~~~~
> include/net/netfilter/nft_meta.h:15:36: warning: 'struct nft_ctx' declare=
d inside parameter list will not be visible outside of this definition or d=
eclaration
>  int nft_meta_get_init(const struct nft_ctx *ctx,
>                                     ^~~~~~~
> include/net/netfilter/nft_meta.h:21:22: warning: 'struct nlattr' declared=
 inside parameter list will not be visible outside of this definition or de=
claration
>          const struct nlattr * const tb[]);
>                       ^~~~~~
> include/net/netfilter/nft_meta.h:20:22: warning: 'struct nft_expr' declar=
ed inside parameter list will not be visible outside of this definition or =
declaration
>          const struct nft_expr *expr,
>                       ^~~~~~~~
> include/net/netfilter/nft_meta.h:19:36: warning: 'struct nft_ctx' declare=
d inside parameter list will not be visible outside of this definition or d=
eclaration
>  int nft_meta_set_init(const struct nft_ctx *ctx,
>                                     ^~~~~~~
> include/net/netfilter/nft_meta.h:24:22: warning: 'struct nft_expr' declar=
ed inside parameter list will not be visible outside of this definition or =
declaration
>          const struct nft_expr *expr);
>                       ^~~~~~~~
> include/net/netfilter/nft_meta.h:23:30: warning: 'struct sk_buff' declare=
d inside parameter list will not be visible outside of this definition or d=
eclaration
>  int nft_meta_get_dump(struct sk_buff *skb,
>                               ^~~~~~~
> include/net/netfilter/nft_meta.h:27:22: warning: 'struct nft_expr' declar=
ed inside parameter list will not be visible outside of this definition or =
declaration
>          const struct nft_expr *expr);
>                       ^~~~~~~~
> include/net/netfilter/nft_meta.h:26:30: warning: 'struct sk_buff' declare=
d inside parameter list will not be visible outside of this definition or d=
eclaration
>  int nft_meta_set_dump(struct sk_buff *skb,
>                               ^~~~~~~
> include/net/netfilter/nft_meta.h:31:23: warning: 'struct nft_pktinfo' dec=
lared inside parameter list will not be visible outside of this definition =
or declaration
>           const struct nft_pktinfo *pkt);
>                        ^~~~~~~~~~~
> include/net/netfilter/nft_meta.h:30:17: warning: 'struct nft_regs' declar=
ed inside parameter list will not be visible outside of this definition or =
declaration
>           struct nft_regs *regs,
>                  ^~~~~~~~
> include/net/netfilter/nft_meta.h:29:37: warning: 'struct nft_expr' declar=
ed inside parameter list will not be visible outside of this definition or =
declaration
>  void nft_meta_get_eval(const struct nft_expr *expr,
>                                      ^~~~~~~~
> include/net/netfilter/nft_meta.h:35:23: warning: 'struct nft_pktinfo' dec=
lared inside parameter list will not be visible outside of this definition =
or declaration
>           const struct nft_pktinfo *pkt);
>                        ^~~~~~~~~~~
> include/net/netfilter/nft_meta.h:34:17: warning: 'struct nft_regs' declar=
ed inside parameter list will not be visible outside of this definition or =
declaration
>           struct nft_regs *regs,
>                  ^~~~~~~~
> include/net/netfilter/nft_meta.h:33:37: warning: 'struct nft_expr' declar=
ed inside parameter list will not be visible outside of this definition or =
declaration
>  void nft_meta_set_eval(const struct nft_expr *expr,
>                                      ^~~~~~~~
> include/net/netfilter/nft_meta.h:38:19: warning: 'struct nft_expr' declar=
ed inside parameter list will not be visible outside of this definition or =
declaration
>       const struct nft_expr *expr);
>                    ^~~~~~~~
> include/net/netfilter/nft_meta.h:37:40: warning: 'struct nft_ctx' declare=
d inside parameter list will not be visible outside of this definition or d=
eclaration
>  void nft_meta_set_destroy(const struct nft_ctx *ctx,
>                                         ^~~~~~~
> include/net/netfilter/nft_meta.h:42:19: warning: 'struct nft_data' declar=
ed inside parameter list will not be visible outside of this definition or =
declaration
>       const struct nft_data **data);
>                    ^~~~~~~~
> include/net/netfilter/nft_meta.h:41:19: warning: 'struct nft_expr' declar=
ed inside parameter list will not be visible outside of this definition or =
declaration
>       const struct nft_expr *expr,
>                    ^~~~~~~~
> include/net/netfilter/nft_meta.h:40:40: warning: 'struct nft_ctx' declare=
d inside parameter list will not be visible outside of this definition or d=
eclaration
>  int nft_meta_set_validate(const struct nft_ctx *ctx,
>                                         ^~~~~~~
>=20
> Caused by commit
>=20
>   30e103fe24de ("netfilter: nft_meta: move bridge meta keys into nft_meta=
_bridge")
>=20
> interacting with commit
>=20
>   3a768d9f7ae5 ("kbuild: compile-test kernel headers to ensure they are s=
elf-contained")
>=20
> from the kbuild tree.
>=20
> I have applied the following patch for today.
>=20
> From: Stephen Rothwell <sfr@canb.auug.org.au>
> Date: Mon, 8 Jul 2019 13:34:42 +1000
> Subject: [PATCH] don't test build another netfilter header
>=20
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> ---
>  include/Kbuild | 1 +
>  1 file changed, 1 insertion(+)
>=20
> diff --git a/include/Kbuild b/include/Kbuild
> index 78434c59701f..cfd73c94d015 100644
> --- a/include/Kbuild
> +++ b/include/Kbuild
> @@ -900,6 +900,7 @@ header-test-			+=3D net/netfilter/nf_tables_core.h
>  header-test-			+=3D net/netfilter/nf_tables_ipv4.h
>  header-test-			+=3D net/netfilter/nf_tables_ipv6.h
>  header-test-			+=3D net/netfilter/nft_fib.h
> +header-test-			+=3D net/netfilter/nft_meta.h
>  header-test-			+=3D net/netfilter/nft_reject.h
>  header-test-			+=3D net/netns/can.h
>  header-test-			+=3D net/netns/generic.h

I reported this yesterday against the netflter-next tree, but now the
fix patch is needed in the merge of the net-next tree.

--=20
Cheers,
Stephen Rothwell

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