netdev - Re: [PATCH] ebpf: fix parameter naming confusing

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Date:   Fri, 17 Jul 2020 01:49:54 +0800
From:   kernel test robot <lkp@...el.com>
To:     YangYuxi <yx.atom1@...il.com>, ast@...nel.org,
        daniel@...earbox.net, kafai@...com, songliubraving@...com,
        yhs@...com, andriin@...com, john.fastabend@...il.com,
        kpsingh@...omium.org, netdev@...r.kernel.org, bpf@...r.kernel.org
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com
Subject: Re: [PATCH] ebpf: fix parameter naming confusing

Hi YangYuxi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on bpf-next/master]
[also build test ERROR on bpf/master net/master ipvs/master net-next/master v5.8-rc5 next-20200716]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/YangYuxi/ebpf-fix-parameter-naming-confusing/20200716-214501
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: powerpc64-randconfig-r003-20200716 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project ed6b578040a85977026c93bf4188f996148f3218)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install powerpc64 cross compiling tool for clang build
        # apt-get install binutils-powerpc64-linux-gnu
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64 

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

All errors (new ones prefixed by >>):

>> kernel/bpf/syscall.c:1887:7: error: use of undeclared identifier 'attach_type'
           if (!attach_type)
                ^
   1 error generated.

vim +/attach_type +1887 kernel/bpf/syscall.c

b16d9aa4c2b90a Martin KaFai Lau 2017-06-05  1882  
040ee69226f8a9 Al Viro          2017-12-02  1883  bool bpf_prog_get_ok(struct bpf_prog *prog,
10eb063762081a YangYuxi         2020-07-16  1884  			    enum bpf_prog_type *prog_type, bool attach_drv)
248f346ffe9508 Jakub Kicinski   2017-11-03  1885  {
288b3de55aace8 Jakub Kicinski   2017-11-20  1886  	/* not an attachment, just a refcount inc, always allow */
288b3de55aace8 Jakub Kicinski   2017-11-20 @1887  	if (!attach_type)
288b3de55aace8 Jakub Kicinski   2017-11-20  1888  		return true;
248f346ffe9508 Jakub Kicinski   2017-11-03  1889  
10eb063762081a YangYuxi         2020-07-16  1890  	if (prog->type != *prog_type)
248f346ffe9508 Jakub Kicinski   2017-11-03  1891  		return false;
288b3de55aace8 Jakub Kicinski   2017-11-20  1892  	if (bpf_prog_is_dev_bound(prog->aux) && !attach_drv)
248f346ffe9508 Jakub Kicinski   2017-11-03  1893  		return false;
248f346ffe9508 Jakub Kicinski   2017-11-03  1894  
248f346ffe9508 Jakub Kicinski   2017-11-03  1895  	return true;
248f346ffe9508 Jakub Kicinski   2017-11-03  1896  }
248f346ffe9508 Jakub Kicinski   2017-11-03  1897  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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