netdev - Re: [PATCH bpf-net 08/14] bpf: introduce the bpf_get_local

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Date:   Fri, 29 Jun 2018 12:37:22 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Roman Gushchin <guro@...com>
Cc:     kbuild-all@...org, netdev@...r.kernel.org, kernel-team@...com,
        tj@...nel.org, Roman Gushchin <guro@...com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>
Subject: Re: [PATCH bpf-net 08/14] bpf: introduce the bpf_get_local_storage()
 helper function

Hi Roman,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on bpf-next/master]
[also build test ERROR on v4.18-rc2]
[cannot apply to next-20180628]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Roman-Gushchin/bpf-cgroup-local-storage/20180629-035104
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: um-x86_64_defconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=um SUBARCH=x86_64

All errors (new ones prefixed by >>):

   net/core/filter.o: In function `cg_skb_func_proto':
   filter.c:(.text+0x58a7): undefined reference to `bpf_get_local_storage_proto'
   net/core/filter.o: In function `sock_filter_func_proto':
   filter.c:(.text+0x5b3d): undefined reference to `bpf_get_local_storage_proto'
   net/core/filter.o: In function `sock_ops_func_proto':
   filter.c:(.text+0x5b9d): undefined reference to `bpf_get_local_storage_proto'
   net/core/filter.o: In function `sk_skb_func_proto':
   filter.c:(.text+0x5c60): undefined reference to `bpf_get_local_storage_proto'
   net/core/filter.o: In function `sk_msg_func_proto':
   filter.c:(.text+0x5cc3): undefined reference to `bpf_get_local_storage_proto'
   net/core/filter.o:filter.c:(.text+0x5ee6): more undefined references to `bpf_get_local_storage_proto' follow
>> collect2: error: ld returned 1 exit status

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