Hi "Eugenio, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on mst-vhost/linux-next] [also build test WARNING on next-20220520] [cannot apply to horms-ipvs/master linus/master v5.18-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/intel-lab-lkp/linux/commits/Eugenio-P-rez/Implement-vdpasim-stop-operation/20220521-012742 base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next config: hexagon-randconfig-r041-20220519 (https://download.01.org/0day-ci/archive/20220521/202205211317.rqYkIW8B-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e00cbbec06c08dc616a0d52a20f678b8fbd4e304) 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 # https://github.com/intel-lab-lkp/linux/commit/bd6562e0d85e8d689d30226bcc0f43246e27e4b5 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Eugenio-P-rez/Implement-vdpasim-stop-operation/20220521-012742 git checkout bd6562e0d85e8d689d30226bcc0f43246e27e4b5 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/vhost/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/vhost/vdpa.c:493:25: warning: variable 'stop' is uninitialized when used here [-Wuninitialized] return ops->stop(vdpa, stop); ^~~~ drivers/vhost/vdpa.c:485:10: note: initialize the variable 'stop' to silence this warning int stop; ^ = 0 1 warning generated. vim +/stop +493 drivers/vhost/vdpa.c 480 481 static long vhost_vdpa_stop(struct vhost_vdpa *v, u32 __user *argp) 482 { 483 struct vdpa_device *vdpa = v->vdpa; 484 const struct vdpa_config_ops *ops = vdpa->config; 485 int stop; 486 487 if (!ops->stop) 488 return -EOPNOTSUPP; 489 490 if (copy_to_user(argp, &stop, sizeof(stop))) 491 return -EFAULT; 492 > 493 return ops->stop(vdpa, stop); 494 } 495 -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization