Hi Cindy, kernel test robot noticed the following build errors:
[auto build test ERROR on mst-vhost/linux-next] [also build test ERROR on linus/master v6.11-rc7 next-20240910] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Cindy-Lu/vhost-Add-a-new-module_param-for-enable-kthread/20240909-093852 base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next patch link: https://lore.kernel.org/r/20240909013531.1243525-3-lulu%40redhat.com patch subject: [PATCH v1 2/7] vhost: Add kthread support in function vhost_worker_queue() config: arc-randconfig-001-20240911 (https://download.01.org/0day-ci/archive/20240911/202409111842.o3eeppu6-...@intel.com/config) compiler: arc-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240911/202409111842.o3eeppu6-...@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202409111842.o3eeppu6-...@intel.com/ All errors (new ones prefixed by >>): drivers/vhost/vhost.c: In function 'vhost_worker_queue': >> drivers/vhost/vhost.c:272:13: error: 'use_kthread' undeclared (first use in >> this function) 272 | if (use_kthread) { | ^~~~~~~~~~~ drivers/vhost/vhost.c:272:13: note: each undeclared identifier is reported only once for each function it appears in vim +/use_kthread +272 drivers/vhost/vhost.c 268 269 static void vhost_worker_queue(struct vhost_worker *worker, 270 struct vhost_work *work) 271 { > 272 if (use_kthread) { 273 vhost_work_queue_kthread(worker, work); 274 } else { 275 vhost_worker_queue_task(worker, work); 276 } 277 } 278 bool vhost_vq_work_queue(struct vhost_virtqueue *vq, struct vhost_work *work) 279 { 280 struct vhost_worker *worker; 281 bool queued = false; 282 283 rcu_read_lock(); 284 worker = rcu_dereference(vq->worker); 285 if (worker) { 286 queued = true; 287 vhost_worker_queue(worker, work); 288 } 289 rcu_read_unlock(); 290 291 return queued; 292 } 293 EXPORT_SYMBOL_GPL(vhost_vq_work_queue); 294 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
