Hi Lei, Thank you for the patch! Yet something to improve: [auto build test ERROR on herbert-cryptodev-2.6/master] [also build test ERROR on herbert-crypto-2.6/master linus/master v5.19-rc2 next-20220617] [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/intel-lab-lkp/linux/commits/Lei-He/virtio-crypto-support-ECDSA-algorithm/20220617-151113 base: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master config: i386-randconfig-s001 (https://download.01.org/0day-ci/archive/20220618/202206180117.Jk42sS41-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-30-g92122700-dirty # https://github.com/intel-lab-lkp/linux/commit/d335068e54f1217848445185702d75739116b1fe git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Lei-He/virtio-crypto-support-ECDSA-algorithm/20220617-151113 git checkout d335068e54f1217848445185702d75739116b1fe # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "ecdsa_max_signature_size" [drivers/crypto/virtio/virtio_crypto.ko] undefined! -- 0-DAY CI Kernel Test Service https://01.org/lkp
