tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 88abac0b753dfdd85362a26d2da8277cb1e0842b commit: f464f9a6a06f2f521f78a6e1ac8680bca2e929e4 [3165/3717] device-dax: add an 'align' attribute config: arm64-randconfig-r013-20200827 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 71f3169e1baeff262583b35ef88f8fb6df7be85e) 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 arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu git checkout f464f9a6a06f2f521f78a6e1ac8680bca2e929e4 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from drivers/dax/super.c:18: >> drivers/dax/dax-private.h:94:12: warning: result of comparison of constant 68719476736 with expression of type 'unsigned int' is always false [-Wtautological-constant-out-of-range-compare] if (align == PUD_SIZE && IS_ENABLED(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD)) ~~~~~ ^ ~~~~~~~~ drivers/dax/super.c:447:6: warning: no previous prototype for function 'run_dax' [-Wmissing-prototypes] void run_dax(struct dax_device *dax_dev) ^ drivers/dax/super.c:447:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void run_dax(struct dax_device *dax_dev) ^ static 2 warnings generated. -- In file included from drivers/dax/bus.c:10: >> drivers/dax/dax-private.h:94:12: warning: result of comparison of constant 68719476736 with expression of type 'unsigned int' is always false [-Wtautological-constant-out-of-range-compare] if (align == PUD_SIZE && IS_ENABLED(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD)) ~~~~~ ^ ~~~~~~~~ 1 warning generated. -- In file included from drivers/dax/device.c:14: >> drivers/dax/dax-private.h:94:12: warning: result of comparison of constant 68719476736 with expression of type 'unsigned int' is always false [-Wtautological-constant-out-of-range-compare] if (align == PUD_SIZE && IS_ENABLED(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD)) ~~~~~ ^ ~~~~~~~~ drivers/dax/device.c:391:5: warning: no previous prototype for function 'dev_dax_probe' [-Wmissing-prototypes] int dev_dax_probe(struct dev_dax *dev_dax) ^ drivers/dax/device.c:391:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int dev_dax_probe(struct dev_dax *dev_dax) ^ static 2 warnings generated. # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=f464f9a6a06f2f521f78a6e1ac8680bca2e929e4 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout f464f9a6a06f2f521f78a6e1ac8680bca2e929e4 vim +94 drivers/dax/dax-private.h 90 91 #ifdef CONFIG_TRANSPARENT_HUGEPAGE 92 static inline bool dax_align_valid(unsigned int align) 93 { > 94 if (align == PUD_SIZE && IS_ENABLED(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD)) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
Attachment:
.config.gz
Description: application/gzip
