Hi Cai, Thank you for the patch! Yet something to improve: [auto build test ERROR on powerpc/next] [also build test ERROR on v5.15-rc5 next-20211011] [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/Cai-Huoqing/scsi-ibmvscsi-Use-dm... base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-allyesconfig (attached as .config) compiler: powerpc64-linux-gcc (GCC) 11.2.0 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/0day-ci/linux/commit/a1533699f9b84980097fc59d047b5292c... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Cai-Huoqing/scsi-ibmvscsi-Use-dma_alloc_coherent-instead-of-get_zeroed_page-dma_map_single/20211011-000515 git checkout a1533699f9b84980097fc59d047b5292c1abab1b # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/scsi/ibmvscsi/ibmvscsi.c: In function 'ibmvscsi_init_crq_queue': 334 | if (!queue->msg) | ^~~ | msgs drivers/scsi/ibmvscsi/ibmvscsi.c:388:60: error: 'struct crq_queue' has no member named 'msg'; did you mean 'msgs'? 388 | dma_free_coherent(hostdata->dev, PAGE_SIZE, queue->msg, queue->msg_token); | ^~~ | msgs vim +334 drivers/scsi/ibmvscsi/ibmvscsi.c 312 313 /** 314 * ibmvscsi_init_crq_queue() - Initializes and registers CRQ with hypervisor 315 * @queue: crq_queue to initialize and register 316 * @hostdata: ibmvscsi_host_data of host 317 * @max_requests: maximum requests (unused) 318 * 319 * Allocates a page for messages, maps it for dma, and registers 320 * the crq with the hypervisor. 321 * Returns zero on success. 322 */ 323 static int ibmvscsi_init_crq_queue(struct crq_queue *queue, 324 struct ibmvscsi_host_data *hostdata, 325 int max_requests) 326 { 327 int rc; 328 int retrc; 329 struct vio_dev *vdev = to_vio_dev(hostdata->dev); 330 331 queue->size = PAGE_SIZE / sizeof(*queue->msgs); 332 queue->msgs = dma_alloc_coherent(hostdata->dev, PAGE_SIZE, 333 &queue->msg_token, GFP_KERNEL); 335 goto malloc_failed; 336 337 gather_partition_info(); 338 set_adapter_info(hostdata); 339 340 retrc = rc = plpar_hcall_norets(H_REG_CRQ, 341 vdev->unit_address, 342 queue->msg_token, PAGE_SIZE); 343 if (rc == H_RESOURCE) 344 /* maybe kexecing and resource is busy. try a reset */ 345 rc = ibmvscsi_reset_crq_queue(queue, 346 hostdata); 347 348 if (rc == H_CLOSED) { 349 /* Adapter is good, but other end is not ready */ 350 dev_warn(hostdata->dev, "Partner adapter not ready\n"); 351 retrc = 0; 352 } else if (rc != 0) { 353 dev_warn(hostdata->dev, "Error %d opening adapter\n", rc); 354 goto reg_crq_failed; 355 } 356 357 queue->cur = 0; 358 spin_lock_init(&queue->lock); 359 360 tasklet_init(&hostdata->srp_task, (void *)ibmvscsi_task, 361 (unsigned long)hostdata); 362 363 if (request_irq(vdev->irq, 364 ibmvscsi_handle_event, 365 0, "ibmvscsi", (void *)hostdata) != 0) { 366 dev_err(hostdata->dev, "couldn't register irq 0x%x\n", 367 vdev->irq); 368 goto req_irq_failed; 369 } 370 371 rc = vio_enable_interrupts(vdev); 372 if (rc != 0) { 373 dev_err(hostdata->dev, "Error %d enabling interrupts!!!\n", rc); 374 goto req_irq_failed; 375 } 376 377 return retrc; 378 379 req_irq_failed: 380 tasklet_kill(&hostdata->srp_task); 381 rc = 0; 382 do { 383 if (rc) 384 msleep(100); 385 rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address); 386 } while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc))); 387 reg_crq_failed: 388 dma_free_coherent(hostdata->dev, PAGE_SIZE, queue->msg, queue->msg_token); 389 malloc_failed: 390 return -1; 391 } 392 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org