* [kees:memcpy/step2/next-20211206 19/19] ld.lld: warning: call to __read_overflow2_field marked "dontcall-warn": detected read beyond size of field (2nd parameter); maybe use struct_group()?
@ 2021-12-08 2:03 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-12-08 2:03 UTC (permalink / raw)
To: Kees Cook; +Cc: llvm, kbuild-all, linux-kernel
tree: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git memcpy/step2/next-20211206
head: 082faead4a3c2e5d9f541f97d8d4d5fa0f88dce0
commit: 082faead4a3c2e5d9f541f97d8d4d5fa0f88dce0 [19/19] fortify: Work around Clang inlining bugs
config: i386-randconfig-a012-20211207 (https://download.01.org/0day-ci/archive/20211208/202112080941.omOoH0rV-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 097a1cb1d5ebb3a0ec4bcaed8ba3ff6a8e33c00a)
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
# https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?id=082faead4a3c2e5d9f541f97d8d4d5fa0f88dce0
git remote add kees https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git
git fetch --no-tags kees memcpy/step2/next-20211206
git checkout 082faead4a3c2e5d9f541f97d8d4d5fa0f88dce0
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash
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 >>):
>> ld.lld: warning: call to __read_overflow2_field marked "dontcall-warn": detected read beyond size of field (2nd parameter); maybe use struct_group()?
>> ld.lld: warning: call to __read_overflow2_field marked "dontcall-warn": detected read beyond size of field (2nd parameter); maybe use struct_group()?
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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2021-12-08 2:03 [kees:memcpy/step2/next-20211206 19/19] ld.lld: warning: call to __read_overflow2_field marked "dontcall-warn": detected read beyond size of field (2nd parameter); maybe use struct_group()? kernel test robot
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