Re: [PATCH] mm/vmscan: add sysctl knobs for protecting the specified

2021-04-05 Thread kernel test robot
Hi Alexey,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linux/master]
[also build test WARNING on linus/master v5.12-rc6 next-20210401]
[cannot apply to hnaz-linux-mm/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Alexey-Avramov/mm-vmscan-add-sysctl-knobs-for-protecting-the-specified/20210406-061034
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
5e46d1b78a03d52306f21f77a4e4a144b6d31486
config: s390-randconfig-r006-20210405 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 
a46f59a747a7273cc439efaf3b4f98d8b63d2f20)
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 s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# 
https://github.com/0day-ci/linux/commit/a5eeb8d197a8e10c333422e9cc0f2c7d976a3426
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Alexey-Avramov/mm-vmscan-add-sysctl-knobs-for-protecting-the-specified/20210406-061034
git checkout a5eeb8d197a8e10c333422e9cc0f2c7d976a3426
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   In file included from mm/vmscan.c:20:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:26:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __raw_readb(PCI_IOBASE + addr);
 ~~ ^
   include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:36:59: note: expanded from macro 
'__le16_to_cpu'
   #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
 ^
   include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
   #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
   In file included from mm/vmscan.c:20:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:26:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
   #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
   In file included from mm/vmscan.c:20:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:26:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   __raw_writeb(value, PCI_IOBASE + addr);
   ~~ ^
   include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a 
null pointer has u

Re: [PATCH] mm/vmscan: add sysctl knobs for protecting the specified

2021-04-05 Thread kernel test robot
Hi Alexey,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linux/master]
[also build test ERROR on linus/master v5.12-rc6 next-20210401]
[cannot apply to hnaz-linux-mm/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Alexey-Avramov/mm-vmscan-add-sysctl-knobs-for-protecting-the-specified/20210406-061034
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
5e46d1b78a03d52306f21f77a4e4a144b6d31486
config: parisc-randconfig-m031-20210405 (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
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://github.com/0day-ci/linux/commit/a5eeb8d197a8e10c333422e9cc0f2c7d976a3426
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Alexey-Avramov/mm-vmscan-add-sysctl-knobs-for-protecting-the-specified/20210406-061034
git checkout a5eeb8d197a8e10c333422e9cc0f2c7d976a3426
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=parisc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All error/warnings (new ones prefixed by >>):

>> mm/vmscan.c:180:5: warning: "CONFIG_CLEAN_LOW_KBYTES" is not defined, 
>> evaluates to 0 [-Wundef]
 180 | #if CONFIG_CLEAN_LOW_KBYTES < 0
 | ^~~
>> mm/vmscan.c:184:5: warning: "CONFIG_CLEAN_MIN_KBYTES" is not defined, 
>> evaluates to 0 [-Wundef]
 184 | #if CONFIG_CLEAN_MIN_KBYTES < 0
 | ^~~
>> mm/vmscan.c:188:55: error: 'CONFIG_CLEAN_LOW_KBYTES' undeclared here (not in 
>> a function)
 188 | unsigned long sysctl_clean_low_kbytes __read_mostly = 
CONFIG_CLEAN_LOW_KBYTES;
 |   
^~~
>> mm/vmscan.c:189:55: error: 'CONFIG_CLEAN_MIN_KBYTES' undeclared here (not in 
>> a function)
 189 | unsigned long sysctl_clean_min_kbytes __read_mostly = 
CONFIG_CLEAN_MIN_KBYTES;
 |   
^~~


vim +/CONFIG_CLEAN_LOW_KBYTES +188 mm/vmscan.c

   179  
 > 180  #if CONFIG_CLEAN_LOW_KBYTES < 0
   181  #error "CONFIG_CLEAN_LOW_KBYTES must be >= 0"
   182  #endif
   183  
 > 184  #if CONFIG_CLEAN_MIN_KBYTES < 0
   185  #error "CONFIG_CLEAN_MIN_KBYTES must be >= 0"
   186  #endif
   187  
 > 188  unsigned long sysctl_clean_low_kbytes __read_mostly = 
 > CONFIG_CLEAN_LOW_KBYTES;
 > 189  unsigned long sysctl_clean_min_kbytes __read_mostly = 
 > CONFIG_CLEAN_MIN_KBYTES;
   190  

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


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