Hi, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on char-misc/char-misc-testing] [also build test WARNING on kselftest/next linus/master hnaz-linux-mm/master v5.10-rc4 next-20201118] [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/laniel_francis-privacyrequired-com/Fortify-strscpy/20201118-190826 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git 93c69b2d17372463ae33b79b3002c22a208945b3 config: s390-randconfig-r025-20201118 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project b2613fb2f0f53691dd0211895afbb9413457fca7) 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/b8ce9dd880f1853b99ef29a47088fe8f9c2bf885 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review laniel_francis-privacyrequired-com/Fortify-strscpy/20201118-190826 git checkout b8ce9dd880f1853b99ef29a47088fe8f9c2bf885 # 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 <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from drivers/misc/lkdtm/fortify.c:9: >> drivers/misc/lkdtm/lkdtm.h:5:9: warning: 'pr_fmt' macro redefined [-Wmacro-redefined] #define pr_fmt(fmt) "lkdtm: " fmt ^ include/linux/printk.h:301:9: note: previous definition is here #define pr_fmt(fmt) fmt ^ 1 warning generated. vim +/pr_fmt +5 drivers/misc/lkdtm/lkdtm.h 9a49a528dcf3c20 drivers/misc/lkdtm.h Kees Cook 2016-02-22 4 6d2e91a662256fd drivers/misc/lkdtm.h Kees Cook 2016-07-15 @5 #define pr_fmt(fmt) "lkdtm: " fmt 6d2e91a662256fd drivers/misc/lkdtm.h Kees Cook 2016-07-15 6 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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