Hi Anshuman, Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linus/master] [cannot apply to v5.3 next-20190920] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Anshuman-Khandual/arm64-mm-Hold-memory-hotplug-lock-while-walking-for-kernel-page-table-dump/20190923-134733 config: arm64-allmodconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <l...@intel.com> All warnings (new ones prefixed by >>): >> mm/memremap.c:16:0: warning: "SECTION_MASK" redefined #define SECTION_MASK ~((1UL << PA_SECTION_SHIFT) - 1) In file included from arch/arm64/include/asm/processor.h:34:0, from include/linux/mutex.h:19, from include/linux/kernfs.h:12, from include/linux/sysfs.h:16, from include/linux/kobject.h:20, from include/linux/device.h:16, from mm/memremap.c:3: arch/arm64/include/asm/pgtable-hwdef.h:79:0: note: this is the location of the previous definition #define SECTION_MASK (~(SECTION_SIZE-1)) >> mm/memremap.c:17:0: warning: "SECTION_SIZE" redefined #define SECTION_SIZE (1UL << PA_SECTION_SHIFT) In file included from arch/arm64/include/asm/processor.h:34:0, from include/linux/mutex.h:19, from include/linux/kernfs.h:12, from include/linux/sysfs.h:16, from include/linux/kobject.h:20, from include/linux/device.h:16, from mm/memremap.c:3: arch/arm64/include/asm/pgtable-hwdef.h:78:0: note: this is the location of the previous definition #define SECTION_SIZE (_AC(1, UL) << SECTION_SHIFT) vim +/SECTION_MASK +16 mm/memremap.c 7d3dcf26a6559f kernel/memremap.c Christoph Hellwig 2015-08-10 @3 #include <linux/device.h> 92281dee825f6d kernel/memremap.c Dan Williams 2015-08-10 4 #include <linux/io.h> 0207df4fa1a869 kernel/memremap.c Andrey Ryabinin 2018-08-17 5 #include <linux/kasan.h> 41e94a851304f7 kernel/memremap.c Christoph Hellwig 2015-08-17 6 #include <linux/memory_hotplug.h> bcfa4b72111c9a kernel/memremap.c Matthew Wilcox 2018-08-15 7 #include <linux/mm.h> bcfa4b72111c9a kernel/memremap.c Matthew Wilcox 2018-08-15 8 #include <linux/pfn_t.h> 5042db43cc26f5 kernel/memremap.c Jérôme Glisse 2017-09-08 9 #include <linux/swap.h> 5042db43cc26f5 kernel/memremap.c Jérôme Glisse 2017-09-08 10 #include <linux/swapops.h> bcfa4b72111c9a kernel/memremap.c Matthew Wilcox 2018-08-15 11 #include <linux/types.h> e7638488434415 kernel/memremap.c Dan Williams 2018-05-16 12 #include <linux/wait_bit.h> bcfa4b72111c9a kernel/memremap.c Matthew Wilcox 2018-08-15 13 #include <linux/xarray.h> 92281dee825f6d kernel/memremap.c Dan Williams 2015-08-10 14 bcfa4b72111c9a kernel/memremap.c Matthew Wilcox 2018-08-15 15 static DEFINE_XARRAY(pgmap_array); 9476df7d80dfc4 kernel/memremap.c Dan Williams 2016-01-15 @16 #define SECTION_MASK ~((1UL << PA_SECTION_SHIFT) - 1) 9476df7d80dfc4 kernel/memremap.c Dan Williams 2016-01-15 @17 #define SECTION_SIZE (1UL << PA_SECTION_SHIFT) 9476df7d80dfc4 kernel/memremap.c Dan Williams 2016-01-15 18 :::::: The code at line 16 was first introduced by commit :::::: 9476df7d80dfc425b37bfecf1d89edf8ec81fcb6 mm: introduce find_dev_pagemap() :::::: TO: Dan Williams <dan.j.willi...@intel.com> :::::: CC: Linus Torvalds <torva...@linux-foundation.org> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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