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Date:   Thu, 21 Apr 2022 10:32:00 +1000
From:   Stephen Rothwell <sfr@canb.auug.org.au>
To:     Daniel Borkmann <daniel@iogearbox.net>,
        Alexei Starovoitov <ast@kernel.org>,
        Andrii Nakryiko <andrii@kernel.org>
Cc:     bpf <bpf@vger.kernel.org>, Networking <netdev@vger.kernel.org>,
        Maciej Fijalkowski <maciej.fijalkowski@intel.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Next Mailing List <linux-next@vger.kernel.org>
Subject: Re: linux-next: build failure after merge of the bpf-next tree
Message-ID: <20220421103200.2b4e8424@canb.auug.org.au>
In-Reply-To: <20220419115620.65580586@canb.auug.org.au>
References: <20220419115620.65580586@canb.auug.org.au>
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Hi all,

On Tue, 19 Apr 2022 11:56:20 +1000 Stephen Rothwell <sfr@canb.auug.org.au> =
wrote:
>
> After merging the bpf-next tree, today's linux-next build
> (x86_64 allmodconfig) failed like this:
>=20
> In file included from include/linux/compiler_types.h:73,
>                  from <command-line>:
> drivers/net/ethernet/intel/i40e/i40e_xsk.c: In function 'i40e_run_xdp_zc':
> include/linux/compiler_attributes.h:222:41: error: attribute 'fallthrough=
' not preceding a case label or default label [-Werror]
>   222 | # define fallthrough                    __attribute__((__fallthro=
ugh__))
>       |                                         ^~~~~~~~~~~~~
> drivers/net/ethernet/intel/i40e/i40e_xsk.c:192:17: note: in expansion of =
macro 'fallthrough'
>   192 |                 fallthrough; /* handle aborts by dropping packet =
*/
>       |                 ^~~~~~~~~~~
> cc1: all warnings being treated as errors
> In file included from include/linux/compiler_types.h:73,
>                  from <command-line>:
> drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c: In function 'ixgbe_run_xdp_=
zc':
> include/linux/compiler_attributes.h:222:41: error: attribute 'fallthrough=
' not preceding a case label or default label [-Werror]
>   222 | # define fallthrough                    __attribute__((__fallthro=
ugh__))
>       |                                         ^~~~~~~~~~~~~
> drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c:147:17: note: in expansion o=
f macro 'fallthrough'
>   147 |                 fallthrough; /* handle aborts by dropping packet =
*/
>       |                 ^~~~~~~~~~~
> cc1: all warnings being treated as errors
>=20
> Caused by commits
>=20
>   b8aef650e549 ("i40e, xsk: Terminate Rx side of NAPI when XSK Rx queue g=
ets full")
>   c7dd09fd4628 ("ixgbe, xsk: Terminate Rx side of NAPI when XSK Rx queue =
gets full")
>=20
> I have used the bpf-next tree from next-20220414 for today.

I am still getting these failures ...

--=20
Cheers,
Stephen Rothwell

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