Hi Gavin, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on arm64/for-next/core] [also build test WARNING on soc/for-next kvmarm/next v5.9-rc4 next-20200911] [cannot apply to arm/for-next xlnx/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/Gavin-Shan/arm64-mm-Refactor-pgd... base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core config: arm64-defconfig (attached as .config) compiler: aarch64-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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from include/linux/printk.h:7, from include/linux/kernel.h:15, from include/asm-generic/bug.h:20, from arch/arm64/include/asm/bug.h:26, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/mm.h:9, from include/linux/pagemap.h:8, from mm/pgtable-generic.c:10: mm/pgtable-generic.c: In function 'pgd_clear_bad': include/linux/kern_levels.h:5:18: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'pgdval_t' {aka 'long long unsigned int'} [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' 11 | #define KERN_ERR KERN_SOH "3" /* error conditions */ | ^~~~~~~~ include/linux/printk.h:339:9: note: in expansion of macro 'KERN_ERR' 339 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~ arch/arm64/include/asm/pgtable.h:697:2: note: in expansion of macro 'pr_err' 697 | pr_err("%s:%d: bad pgd %016lx.\n", __FILE__, __LINE__, pgd_val(e)) | ^~~~~~ mm/pgtable-generic.c:23:2: note: in expansion of macro 'pgd_ERROR' 23 | pgd_ERROR(*pgd); | ^~~~~~~~~ In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/pagemap.h:8, from mm/pgtable-generic.c:10: arch/arm64/include/asm/pgtable.h:697:30: note: format string is defined here 697 | pr_err("%s:%d: bad pgd %016lx.\n", __FILE__, __LINE__, pgd_val(e)) | ~~~~~^ | | | long unsigned int | %016llx In file included from include/linux/printk.h:7, from include/linux/kernel.h:15, from include/asm-generic/bug.h:20, from arch/arm64/include/asm/bug.h:26, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/mm.h:9, from include/linux/pagemap.h:8, from mm/pgtable-generic.c:10: mm/pgtable-generic.c: In function 'pud_clear_bad': 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' 11 | #define KERN_ERR KERN_SOH "3" /* error conditions */ | ^~~~~~~~ include/linux/printk.h:339:9: note: in expansion of macro 'KERN_ERR' 339 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~ arch/arm64/include/asm/pgtable.h:637:2: note: in expansion of macro 'pr_err' 637 | pr_err("%s:%d: bad pud %016lx.\n", __FILE__, __LINE__, pud_val(e)) | ^~~~~~ mm/pgtable-generic.c:38:2: note: in expansion of macro 'pud_ERROR' 38 | pud_ERROR(*pud); | ^~~~~~~~~ In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/pagemap.h:8, from mm/pgtable-generic.c:10: arch/arm64/include/asm/pgtable.h:637:30: note: format string is defined here 637 | pr_err("%s:%d: bad pud %016lx.\n", __FILE__, __LINE__, pud_val(e)) | ~~~~~^ | | | long unsigned int | %016llx In file included from include/linux/printk.h:7, from include/linux/kernel.h:15, from include/asm-generic/bug.h:20, from arch/arm64/include/asm/bug.h:26, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/mm.h:9, from include/linux/pagemap.h:8, from mm/pgtable-generic.c:10: mm/pgtable-generic.c: In function 'pmd_clear_bad': include/linux/kern_levels.h:5:18: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'pmdval_t' {aka 'long long unsigned int'} [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' 11 | #define KERN_ERR KERN_SOH "3" /* error conditions */ | ^~~~~~~~ include/linux/printk.h:339:9: note: in expansion of macro 'KERN_ERR' 339 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~ arch/arm64/include/asm/pgtable.h:569:2: note: in expansion of macro 'pr_err' 569 | pr_err("%s:%d: bad pmd %016lx.\n", __FILE__, __LINE__, pmd_val(e)) | ^~~~~~ mm/pgtable-generic.c:50:2: note: in expansion of macro 'pmd_ERROR' 50 | pmd_ERROR(*pmd); | ^~~~~~~~~ In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/pagemap.h:8, from mm/pgtable-generic.c:10: arch/arm64/include/asm/pgtable.h:569:30: note: format string is defined here 569 | pr_err("%s:%d: bad pmd %016lx.\n", __FILE__, __LINE__, pmd_val(e)) | ~~~~~^ | | | long unsigned int | %016llx # https://github.com/0day-ci/linux/commit/cd252fb09dcb74b0e227cc8a28d08d32e... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Gavin-Shan/arm64-mm-Refactor-pgd-pud-pmd-pte-_ERROR/20200913-194714 git checkout cd252fb09dcb74b0e227cc8a28d08d32e217f084 vim +5 include/linux/kern_levels.h 314ba3520e513a Joe Perches 2012-07-30 4 04d2c8c83d0e3a Joe Perches 2012-07-30 @5 #define KERN_SOH "\001" /* ASCII Start Of Header */ 04d2c8c83d0e3a Joe Perches 2012-07-30 6 #define KERN_SOH_ASCII '\001' 04d2c8c83d0e3a Joe Perches 2012-07-30 7 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org