netdev - Re: [PATCH bpf-next] bpf: add bpf_jit_blinding_enabled for !CONFIG_BPF

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Date:   Mon, 25 Nov 2019 06:54:49 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Daniel Borkmann <daniel@...earbox.net>
Cc:     kbuild-all@...ts.01.org, ast@...nel.org, jakub@...udflare.com,
        andrii.nakryiko@...il.com, netdev@...r.kernel.org,
        bpf@...r.kernel.org, Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andriin@...com>
Subject: Re: [PATCH bpf-next] bpf: add bpf_jit_blinding_enabled for
 !CONFIG_BPF_JIT

Hi Daniel,

I love your patch! Yet something to improve:

[auto build test ERROR on bpf-next/master]
[cannot apply to v5.4-rc8 next-20191122]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Daniel-Borkmann/bpf-add-bpf_jit_blinding_enabled-for-CONFIG_BPF_JIT/20191125-042008
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: i386-tinyconfig (attached as .config)
compiler: gcc-7 (Debian 7.4.0-14) 7.4.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from include/net/sock.h:59:0,
                    from include/linux/tcp.h:19,
                    from include/linux/ipv6.h:87,
                    from include/net/ipv6.h:12,
                    from include/linux/sunrpc/clnt.h:28,
                    from include/linux/nfs_fs.h:32,
                    from init/do_mounts.c:23:
>> include/linux/filter.h:1061:20: error: redefinition of 'bpf_jit_blinding_enabled'
    static inline bool bpf_jit_blinding_enabled(struct bpf_prog *prog)
                       ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/filter.h:1056:20: note: previous definition of 'bpf_jit_blinding_enabled' was here
    static inline bool bpf_jit_blinding_enabled(struct bpf_prog *prog)
                       ^~~~~~~~~~~~~~~~~~~~~~~~

vim +/bpf_jit_blinding_enabled +1061 include/linux/filter.h

  1060	
> 1061	static inline bool bpf_jit_blinding_enabled(struct bpf_prog *prog)
  1062	{
  1063		return false;
  1064	}
  1065	

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation

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