Messages in this thread | | | Date | Thu, 21 Jan 2021 15:11:51 +0800 | From | kernel test robot <> | Subject | kernel/bpf/verifier.c:11717:5: warning: stack frame size of 1032 bytes in function 'bpf_check' |
| |
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 9791581c049c10929e97098374dd1716a81fefcc commit: eaa6bcb71ef6ed3dc18fc525ee7e293b06b4882b bpf: Introduce bpf_per_cpu_ptr() date: 4 months ago config: mips-randconfig-r003-20210121 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 22b68440e1647e16b5ee24b924986207173c02d1) 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 mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eaa6bcb71ef6ed3dc18fc525ee7e293b06b4882b git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout eaa6bcb71ef6ed3dc18fc525ee7e293b06b4882b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips
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:11717:5: warning: stack frame size of 1032 bytes in function 'bpf_check' [-Wframe-larger-than=] int bpf_check(struct bpf_prog **prog, union bpf_attr *attr, ^ kernel/bpf/verifier.c:9163:12: warning: stack frame size of 3688 bytes in function 'do_check' [-Wframe-larger-than=] static int do_check(struct bpf_verifier_env *env) ^ 2 warnings generated.
vim +/bpf_check +11717 kernel/bpf/verifier.c
76654e67f3a01c50 Alan Maguire 2020-09-28 11716 838e96904ff3fc6c Yonghong Song 2018-11-19 @11717 int bpf_check(struct bpf_prog **prog, union bpf_attr *attr,
:::::: The code at line 11717 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 [unhandled content-type:application/gzip] | |