Hi "Aneesh, I love your patch! Perhaps something to improve: [auto build test WARNING on hnaz-linux-mm/master] [also build test WARNING on powerpc/next v5.9-rc2 next-20200827] [cannot apply to mmotm/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/Aneesh-Kumar-K-V/mm-debug_vm_pgtable-fixes/20200827-160758 base: https://github.com/hnaz/linux-mm master config: x86_64-randconfig-s022-20200827 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-191-g10164920-dirty # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) mm/debug_vm_pgtable.c:509:9: sparse: sparse: incompatible types in conditional expression (different base types): mm/debug_vm_pgtable.c:509:9: sparse: void mm/debug_vm_pgtable.c:509:9: sparse: int mm/debug_vm_pgtable.c:528:9: sparse: sparse: incompatible types in conditional expression (different base types): mm/debug_vm_pgtable.c:528:9: sparse: void mm/debug_vm_pgtable.c:528:9: sparse: int mm/debug_vm_pgtable.c: note: in included file (through include/linux/pgtable.h, include/linux/mm.h, include/linux/highmem.h): >> arch/x86/include/asm/pgtable.h:587:27: sparse: sparse: context imbalance in 'debug_vm_pgtable' - unexpected unlock # https://github.com/0day-ci/linux/commit/9370726f47eaffdf772fdc273d180ec03b245cca git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Aneesh-Kumar-K-V/mm-debug_vm_pgtable-fixes/20200827-160758 git checkout 9370726f47eaffdf772fdc273d180ec03b245cca vim +/debug_vm_pgtable +587 arch/x86/include/asm/pgtable.h b534816b552d35 Jeremy Fitzhardinge 2009-02-04 586 fb43d6cb91ef57 Dave Hansen 2018-04-06 @587 static inline pgprotval_t check_pgprot(pgprot_t pgprot) fb43d6cb91ef57 Dave Hansen 2018-04-06 588 { fb43d6cb91ef57 Dave Hansen 2018-04-06 589 pgprotval_t massaged_val = massage_pgprot(pgprot); fb43d6cb91ef57 Dave Hansen 2018-04-06 590 fb43d6cb91ef57 Dave Hansen 2018-04-06 591 /* mmdebug.h can not be included here because of dependencies */ fb43d6cb91ef57 Dave Hansen 2018-04-06 592 #ifdef CONFIG_DEBUG_VM fb43d6cb91ef57 Dave Hansen 2018-04-06 593 WARN_ONCE(pgprot_val(pgprot) != massaged_val, fb43d6cb91ef57 Dave Hansen 2018-04-06 594 "attempted to set unsupported pgprot: %016llx " fb43d6cb91ef57 Dave Hansen 2018-04-06 595 "bits: %016llx supported: %016llx\n", fb43d6cb91ef57 Dave Hansen 2018-04-06 596 (u64)pgprot_val(pgprot), fb43d6cb91ef57 Dave Hansen 2018-04-06 597 (u64)pgprot_val(pgprot) ^ massaged_val, fb43d6cb91ef57 Dave Hansen 2018-04-06 598 (u64)__supported_pte_mask); fb43d6cb91ef57 Dave Hansen 2018-04-06 599 #endif fb43d6cb91ef57 Dave Hansen 2018-04-06 600 fb43d6cb91ef57 Dave Hansen 2018-04-06 601 return massaged_val; fb43d6cb91ef57 Dave Hansen 2018-04-06 602 } fb43d6cb91ef57 Dave Hansen 2018-04-06 603 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
Attachment:
.config.gz
Description: application/gzip
