Hi Oded, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on char-misc/char-misc-testing] [cannot apply to linux/master linus/master v5.8-rc7] [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/Oded-Gabbay/habanalabs-Replace-dma-fence-mechanism-with-completions/20200730-211536 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git 22362aa30bad6f03b5bcbbeee3cdc61950d40086 config: x86_64-randconfig-s022-20200801 (attached as .config) compiler: gcc-9 (Debian 9.3.0-14) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-115-g5fc204f2-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 sparse warnings: (new ones prefixed by >>) >> drivers/misc/habanalabs/common/command_submission.c:41:6: sparse: sparse: symbol 'hl_fence_release' was not declared. Should it be static? >> drivers/misc/habanalabs/common/command_submission.c:101:6: sparse: sparse: symbol 'hl_fence_init' was not declared. Should it be static? Please review and possibly fold the followup patch. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org