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From: kbuild test robot <lkp@intel.com>
To: Alexei Starovoitov <alexei.starovoitov@gmail.com>, davem@davemloft.net
Cc: kbuild-all@lists.01.org, daniel@iogearbox.net,
	netdev@vger.kernel.org, bpf@vger.kernel.org, kernel-team@fb.com
Subject: Re: [PATCH v2 bpf-next 2/4] bpf: Introduce sleepable BPF programs
Date: Sun, 31 May 2020 10:19:36 +0800	[thread overview]
Message-ID: <202005311049.SVdA9Hza%lkp@intel.com> (raw)
In-Reply-To: <20200529043839.15824-3-alexei.starovoitov@gmail.com>

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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: microblaze-randconfig-c003-20200531 (attached as .config)
compiler: microblaze-linux-gcc (GCC) 9.3.0

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

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

microblaze-linux-ld: kernel/bpf/syscall.o: in function `__bpf_prog_put_noref':
kernel/bpf/syscall.c:1729: undefined reference to `bpf_srcu'
microblaze-linux-ld: kernel/bpf/hashtab.o: in function `lock_is_held':
>> include/linux/lockdep.h:406: undefined reference to `bpf_srcu'
microblaze-linux-ld: kernel/bpf/hashtab.o: in function `htab_map_free':
kernel/bpf/hashtab.c:1305: undefined reference to `bpf_srcu'
microblaze-linux-ld: kernel/bpf/hashtab.o: in function `lock_is_held':
>> include/linux/lockdep.h:406: undefined reference to `bpf_srcu'
>> microblaze-linux-ld: include/linux/lockdep.h:406: undefined reference to `bpf_srcu'
microblaze-linux-ld: kernel/bpf/hashtab.o:include/linux/lockdep.h:406: more undefined references to `bpf_srcu' follow

vim +406 include/linux/lockdep.h

f8319483f57f1c Peter Zijlstra 2016-11-30  403  
08f36ff642342f Matthew Wilcox 2018-01-17  404  static inline int lock_is_held(const struct lockdep_map *lock)
f8319483f57f1c Peter Zijlstra 2016-11-30  405  {
f8319483f57f1c Peter Zijlstra 2016-11-30 @406  	return lock_is_held_type(lock, -1);
f8319483f57f1c Peter Zijlstra 2016-11-30  407  }
f607c668577481 Peter Zijlstra 2009-07-20  408  

:::::: The code at line 406 was first introduced by commit
:::::: f8319483f57f1ca22370f4150bb990aca7728a67 locking/lockdep: Provide a type check for lock_is_held

:::::: TO: Peter Zijlstra <peterz@infradead.org>
:::::: CC: Dave Chinner <david@fromorbit.com>

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

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  parent reply	other threads:[~2020-05-31  2:36 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-29  4:38 [PATCH v2 bpf-next 0/4] bpf: Introduce minimal support for sleepable progs Alexei Starovoitov
2020-05-29  4:38 ` [PATCH v2 bpf-next 1/4] bpf: Fix use-after-free in fmod_ret check Alexei Starovoitov
2020-05-29  4:38 ` [PATCH v2 bpf-next 2/4] bpf: Introduce sleepable BPF programs Alexei Starovoitov
2020-05-29  8:25   ` Andrii Nakryiko
2020-05-29 20:12     ` Alexei Starovoitov
2020-05-29 20:38       ` Andrii Nakryiko
2020-05-29 20:52         ` Alexei Starovoitov
2020-05-31  2:19   ` kbuild test robot [this message]
2020-05-31  4:33   ` kbuild test robot
2020-05-29  4:38 ` [PATCH v2 bpf-next 3/4] libbpf: support sleepable progs Alexei Starovoitov
2020-05-29  4:38 ` [PATCH v2 bpf-next 4/4] selftests/bpf: basic sleepable tests Alexei Starovoitov

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