From: kernel test robot <lkp@intel.com>
To: Alexei Starovoitov <ast@kernel.org>
Cc: kbuild-all@lists.01.org, clang-built-linux@googlegroups.com,
linux-kernel@vger.kernel.org, Jakub Kicinski <kuba@kernel.org>
Subject: kernel/bpf/verifier.c:11937:5: warning: stack frame size of 1056 bytes in function 'bpf_check'
Date: Sun, 24 Jan 2021 20:31:35 +0800 [thread overview]
Message-ID: <202101242025.FcJjsQH7-lkp@intel.com> (raw)
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: e1ae4b0be15891faf46d390e9f3dc9bd71a8cae1
commit: a1dd1d86973182458da7798a95f26cfcbea599b4 Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
date: 7 weeks ago
config: powerpc-randconfig-r005-20210124 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project bd3a387ee76f58caa0d7901f3f84e9bb3d006f27)
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 powerpc cross compiling tool for clang build
# apt-get install binutils-powerpc-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a1dd1d86973182458da7798a95f26cfcbea599b4
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout a1dd1d86973182458da7798a95f26cfcbea599b4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> kernel/bpf/verifier.c:11937:5: warning: stack frame size of 1056 bytes in function 'bpf_check' [-Wframe-larger-than=]
int bpf_check(struct bpf_prog **prog, union bpf_attr *attr,
^
kernel/bpf/verifier.c:9382:12: warning: stack frame size of 3008 bytes in function 'do_check' [-Wframe-larger-than=]
static int do_check(struct bpf_verifier_env *env)
^
2 warnings generated.
vim +/bpf_check +11937 kernel/bpf/verifier.c
76654e67f3a01c5 Alan Maguire 2020-09-28 11936
838e96904ff3fc6 Yonghong Song 2018-11-19 @11937 int bpf_check(struct bpf_prog **prog, union bpf_attr *attr,
:::::: The code at line 11937 was first introduced by commit
:::::: 838e96904ff3fc6c30e5ebbc611474669856e3c0 bpf: Introduce bpf_func_info
:::::: TO: Yonghong Song <yhs@fb.com>
:::::: CC: Alexei Starovoitov <ast@kernel.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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reply other threads:[~2021-01-24 12:32 UTC|newest]
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