linux-kernel - Re: [PATCH v3 net-next 0/2] bpfilter

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Date:   Wed, 23 May 2018 18:50:33 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Alexei Starovoitov <ast@...nel.org>
Cc:     "David S . Miller" <davem@...emloft.net>, <daniel@...earbox.net>,
        <torvalds@...ux-foundation.org>, <gregkh@...uxfoundation.org>,
        <luto@...capital.net>, <mcgrof@...nel.org>,
        <keescook@...omium.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <kernel-team@...com>
Subject: Re: [PATCH v3 net-next 0/2] bpfilter

On Wed, 23 May 2018 18:33:52 -0700, Jakub Kicinski wrote:
> Minor glitch with Ubuntu 18.04:
> 
> $ gcc --version
> gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
> 
> In file included from /usr/include/fcntl.h:290:0,
>                  from ../net/bpfilter/main.c:7:
> In function ‘open’,
>     inlined from ‘main’ at ../net/bpfilter/main.c:58:13:
> /usr/include/x86_64-linux-gnu/bits/fcntl2.h:50:4: error: call to ‘__open_missing_mode’ declared with attribute error: open with O_CREAT or O_TMPFILE in second argument needs 3 arguments
>     __open_missing_mode ();
>     ^~~~~~~~~~~~~~~~~~~~~~
> scripts/Makefile.host:107: recipe for target 'net/bpfilter/main.o' failed
> make[3]: *** [net/bpfilter/main.o] Error 1
> 
> I can't repro on Fedora 27 gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5),
> perhaps the GCC is broken on that Ubuntu 18.04 box of mine.  The warning/
> /error, however, looks potentially legit?

More?

Kernel: arch/x86/boot/bzImage is ready  (#9)
  Building modules, stage 2.
  MODPOST 1620 modules
ERROR: "bpfilter_process_sockopt" [net/bpfilter/bpfilter.ko] undefined!
../scripts/Makefile.modpost:92: recipe for target '__modpost' failed
make[2]: *** [__modpost] Error 1
/home/jkicinski/devel/linux/Makefile:1274: recipe for target 'modules' failed
make[1]: *** [modules] Error 2
make[1]: Leaving directory '/home/jkicinski/devel/linux/build_randconfig'
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2


Download attachment "bpfitlter_config.bz2" of type "application/x-bzip" (30187 bytes)