netdev - Re: [PATCH v2 bpf-next 2/4] bpf: Introduce sleepable BPF programs

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Message-ID: <202005311251.Ei8cWlqm%lkp@intel.com>
Date:   Sun, 31 May 2020 12:33:09 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>,
        davem@...emloft.net
Cc:     kbuild-all@...ts.01.org, daniel@...earbox.net,
        netdev@...r.kernel.org, bpf@...r.kernel.org, kernel-team@...com
Subject: Re: [PATCH v2 bpf-next 2/4] bpf: Introduce sleepable BPF programs

Hi Alexei,

I love your patch! Yet something to improve:

[auto build test ERROR on net-next/master]
[also build test ERROR on v5.7-rc7 next-20200529]
[cannot apply to bpf-next/master bpf/master net/master]
[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/Alexei-Starovoitov/bpf-Introduce-minimal-support-for-sleepable-progs/20200531-055259
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git bc183dec08f9cb177cf5206a010b7a9e7b22e567
config: um-randconfig-r004-20200529 (attached as .config)
compiler: gcc-6 (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
reproduce (this is a W=1 build):
        # save the attached .config to linux build tree
        make W=1 ARCH=um 

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

All errors (new ones prefixed by >>, old ones prefixed by <<):

/usr/bin/ld: kernel/bpf/syscall.o: in function `__bpf_prog_put_noref':
kernel/bpf/syscall.c:1729: undefined reference to `bpf_srcu'
/usr/bin/ld: kernel/bpf/hashtab.o: in function `htab_map_free':
kernel/bpf/hashtab.c:1305: undefined reference to `bpf_srcu'
/usr/bin/ld: kernel/bpf/hashtab.o: in function `lock_is_held':
include/linux/lockdep.h:406: undefined reference to `bpf_srcu'
>> /usr/bin/ld: include/linux/lockdep.h:406: undefined reference to `bpf_srcu'
>> /usr/bin/ld: include/linux/lockdep.h:406: undefined reference to `bpf_srcu'
/usr/bin/ld: kernel/bpf/hashtab.o:include/linux/lockdep.h:406: more undefined references to `bpf_srcu' follow
collect2: error: ld returned 1 exit status

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

Download attachment ".config.gz" of type "application/gzip" (16926 bytes)