netdev - Re: [PATCH v7 bpf-next/net 3/6] net-memcg: Introduce net.core.memcg

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Message-ID: <202509101912.ROjtP2uL-lkp@intel.com>
Date: Wed, 10 Sep 2025 19:57:39 +0800
From: kernel test robot <lkp@...el.com>
To: Kuniyuki Iwashima <kuniyu@...gle.com>,
	Alexei Starovoitov <ast@...nel.org>,
	Andrii Nakryiko <andrii@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Martin KaFai Lau <martin.lau@...ux.dev>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	John Fastabend <john.fastabend@...il.com>,
	Stanislav Fomichev <sdf@...ichev.me>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...nel.org>,
	Roman Gushchin <roman.gushchin@...ux.dev>,
	Shakeel Butt <shakeel.butt@...ux.dev>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Neal Cardwell <ncardwell@...gle.com>,
	Willem de Bruijn <willemb@...gle.com>,
	Mina Almasry <almasrymina@...gle.com>,
	Kuniyuki Iwashima <kuniyu@...gle.com>, bpf@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH v7 bpf-next/net 3/6] net-memcg: Introduce
 net.core.memcg_exclusive sysctl.

Hi Kuniyuki,

kernel test robot noticed the following build errors:

[auto build test ERROR on bpf-next/net]

url:    https://github.com/intel-lab-lkp/linux/commits/Kuniyuki-Iwashima/tcp-Save-lock_sock-for-memcg-in-inet_csk_accept/20250910-044928
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git net
patch link:    https://lore.kernel.org/r/20250909204632.3994767-4-kuniyu%40google.com
patch subject: [PATCH v7 bpf-next/net 3/6] net-memcg: Introduce net.core.memcg_exclusive sysctl.
config: um-randconfig-001-20250910 (https://download.01.org/0day-ci/archive/20250910/202509101912.ROjtP2uL-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 7fb1dc08d2f025aad5777bb779dfac1197e9ef87)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250910/202509101912.ROjtP2uL-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509101912.ROjtP2uL-lkp@intel.com/

All errors (new ones prefixed by >>):

   /usr/bin/ld: warning: .tmp_vmlinux1 has a LOAD segment with RWX permissions
   /usr/bin/ld: mm/memcontrol.o: in function `mem_cgroup_sk_set':
>> memcontrol.c:(.text+0xa1e0): undefined reference to `init_net'
   clang: error: linker command failed with exit code 1 (use -v to see invocation)

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki