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SubjectRe: [PATCH] mm: remove the redundancy code
Hi Su,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on mmotm/master]

url: https://github.com/0day-ci/linux/commits/Su-Hui/mm-remove-the-redundancy-code/20200630-013137
base: git://git.cmpxchg.org/linux-mmotm.git master
config: x86_64-allnoconfig (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project cf1d04484344be52ada8178e41d18fd15a9b880c)
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 x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64

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 >>):

^
include/linux/mm.h:162:2: note: insert 'break;' to avoid fall-throughinclude/linux/signal.h
case 72:
^
break; :
include/linux/mm.h:190164:2: warning: unannotated fall-through between switch labels
case 64::include/linux/mm.h:164:2: note: insert '__attribute__((fallthrough));' to silence this warning
>> case 64:2: warning: unannotated fall-through between switch labels
case 1: = 0;
^
include/linux/signal.h:190:2: note: insert '__attribute__((fallthrough));' to silence this warning
case 1: = 0;
^
__attribute__((fallthrough));
include/linux/signal.h:190:2: note: insert 'break;' to avoid fall-through
case 1: = 0;
^
break;
include/linux/signal.h:203:2: warning: unannotated fall-through between switch labels
case 1: = -1;
^

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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