tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 3b421b6002e287e38790cbdad4a3e08baf7e1bc4 commit: f0db1bf5852542c46c16d0b305193069e265f769 [7037/10596] Huawei BMA: Adding Huawei BMA driver: host_edma_drv config: loongarch-randconfig-r132-20240707 (https://download.01.org/0day-ci/archive/20240708/202407081155.6fc6bMvH-lkp@i...) compiler: loongarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240708/202407081155.6fc6bMvH-lkp@i...) 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 <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202407081155.6fc6bMvH-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:108:16: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:110:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:131:35: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:136:28: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:147:16: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:254:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:413:25: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:581:6: sparse: sparse: symbol 'host_dma_transfer_without_list' was not declared. Should it be static? drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:629:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:608:6: sparse: sparse: symbol 'host_dma_transfer_withlist' was not declared. Should it be static? drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:653:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:668:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:708:25: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:716:9: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:748:25: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:754:25: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:759:25: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:765:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:777:27: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:791:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:810:9: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:852:35: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:859:49: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:869:49: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:876:33: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:960:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:966:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:996:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1046:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1050:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1061:9: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1087:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1102:9: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1126:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1138:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1160:25: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1162:44: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1165:22: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1166:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned char * @@ drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1166:33: sparse: expected void const volatile [noderef] __iomem *addr drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1166:33: sparse: got unsigned char * drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1167:22: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1167:22: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned char * @@ drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1167:22: sparse: expected void const volatile [noderef] __iomem *addr drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1167:22: sparse: got unsigned char * drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1169:9: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1175:28: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1175:28: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1175:28: sparse: expected void volatile [noderef] __iomem *addr drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1175:28: sparse: got void * drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1181:25: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1186:25: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1196:33: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1200:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1201:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1203:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1217:25: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1218:25: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1219:25: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1227:36: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1227:36: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1227:36: sparse: expected void volatile [noderef] __iomem *addr drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1227:36: sparse: got void * drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1272:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1282:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1287:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1299:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1356:17: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1372:23: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1371:35: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *edma_send_addr @@ got void * @@ drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1371:35: sparse: expected void [noderef] __iomem *edma_send_addr drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1371:35: sparse: got void *

...

drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1374:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got void [noderef] __iomem *edma_send_addr @@ drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1374:9: sparse: expected void const * drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1374:9: sparse: got void [noderef] __iomem *edma_send_addr drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1374:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got void [noderef] __iomem *edma_send_addr @@ drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1374:9: sparse: expected void const * drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1374:9: sparse: got void [noderef] __iomem *edma_send_addr drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1374:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got void [noderef] __iomem *edma_send_addr @@ drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1374:9: sparse: expected void * drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1374:9: sparse: got void [noderef] __iomem *edma_send_addr drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1377:23: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1376:35: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *edma_recv_addr @@ got void * @@ drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1376:35: sparse: expected void [noderef] __iomem *edma_recv_addr drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1376:35: sparse: got void * drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1380:9: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1406:16: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1413:9: sparse: sparse: Using plain integer as NULL pointer drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c:1442:16: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c: note: in included file (through include/linux/rculist.h, include/linux/pid.h, include/linux/sched.h, ...): include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true

vim +1374 drivers/net/ethernet/huawei/bma/edma_drv/edma_host.c 1268 1269 struct edma_user_inft_s *edma_host_get_user_inft(u32 type) 1270 { 1271 if (type >= TYPE_MAX) {

1272 BMA_LOG(DLOG_ERROR, "type error %d\n", type); 1273 return NULL; 1274 } 1275 1276 return g_user_func[type]; 1277 } 1278 1279 int edma_host_user_register(u32 type, struct edma_user_inft_s *func) 1280 { 1281 if (type >= TYPE_MAX) { 1282 BMA_LOG(DLOG_ERROR, "type error %d\n", type); 1283 return -EFAULT; 1284 } 1285 1286 if (!func) { 1287 BMA_LOG(DLOG_ERROR, "func is NULL\n"); 1288 return -EFAULT; 1289 } 1290 1291 g_user_func[type] = func; 1292 1293 return 0; 1294 } 1295 1296 int edma_host_user_unregister(u32 type) 1297 { 1298 if (type >= TYPE_MAX) { 1299 BMA_LOG(DLOG_ERROR, "type error %d\n", type); 1300 return -EFAULT; 1301 } 1302 1303 g_user_func[type] = NULL; 1304 1305 return 0; 1306 } 1307 1308 int edma_host_init(struct edma_host_s *edma_host) 1309 { 1310 int ret = 0; 1311 struct bma_dev_s *bma_dev = NULL; 1312 struct notify_msg *pnm = NULL; 1313 1314 if (!edma_host) 1315 return -1; 1316 1317 bma_dev = list_entry(edma_host, struct bma_dev_s, edma_host); 1318 g_bma_dev = bma_dev; 1319 1320 edma_host->pdev = bma_dev->bma_pci_dev->pdev; 1321 1322 #ifdef EDMA_TIMER 1323 #ifdef HAVE_TIMER_SETUP 1324 timer_setup(&edma_host->timer, edma_host_timeout, 0); 1325 #else 1326 setup_timer(&edma_host->timer, edma_host_timeout, 1327 (unsigned long)edma_host); 1328 #endif 1329 (void)mod_timer(&edma_host->timer, jiffies_64 + TIMER_INTERVAL_CHECK); 1330 #ifdef USE_DMA 1331 #ifdef HAVE_TIMER_SETUP 1332 timer_setup(&edma_host->dma_timer, edma_host_dma_timeout, 0); 1333 1334 #else 1335 setup_timer(&edma_host->dma_timer, edma_host_dma_timeout, 1336 (unsigned long)edma_host); 1337 #endif 1338 (void)mod_timer(&edma_host->dma_timer, 1339 jiffies_64 + DMA_TIMER_INTERVAL_CHECK); 1340 #endif 1341 1342 #else 1343 init_completion(&edma_host->msg_ready); 1344 1345 edma_host->edma_thread = 1346 kthread_run(edma_host_thread, (void *)edma_host, "edma_host_msg"); 1347 1348 if (IS_ERR(edma_host->edma_thread)) { 1349 BMA_LOG(DLOG_ERROR, "kernel_run edma_host_msg failed\n"); 1350 return PTR_ERR(edma_host->edma_thread); 1351 } 1352 #endif 1353 1354 edma_host->msg_send_buf = kmalloc(HOST_MAX_SEND_MBX_LEN, GFP_KERNEL); 1355 if (!edma_host->msg_send_buf) { 1356 BMA_LOG(DLOG_ERROR, "malloc msg_send_buf failed!"); 1357 ret = -ENOMEM; 1358 goto failed1; 1359 } 1360 1361 edma_host->msg_send_write = 0; 1362 1363 spin_lock_init(&edma_host->send_msg_lock); 1364 1365 tasklet_init(&edma_host->tasklet, 1366 (void (*)(unsigned long))edma_host_isr_tasklet, 1367 (unsigned long)edma_host); 1368 1369 edma_host->edma_flag = bma_dev->bma_pci_dev->edma_swap_addr; 1370 1371 edma_host->edma_send_addr = 1372 (void *)((unsigned char *)bma_dev->bma_pci_dev->edma_swap_addr + 1373 HOST_DMA_FLAG_LEN); 1374 memset(edma_host->edma_send_addr, 0, SIZE_OF_MBX_HDR); 1375 1376 edma_host->edma_recv_addr = 1377 (void *)((unsigned char *)edma_host->edma_send_addr + 1378 HOST_MAX_SEND_MBX_LEN); 1379 1380 BMA_LOG(DLOG_DEBUG, 1381 "edma_flag = %p, edma_send_addr = %p, edma_recv_addr = %p\n", 1382 edma_host->edma_flag, edma_host->edma_send_addr, 1383 edma_host->edma_recv_addr); 1384 1385 edma_host->hostrtc_viraddr = bma_dev->bma_pci_dev->hostrtc_viraddr; 1386 1387 init_waitqueue_head(&edma_host->wq_dmah2b); 1388 init_waitqueue_head(&edma_host->wq_dmab2h); 1389 1390 spin_lock_init(&edma_host->reg_lock); 1391 1392 edma_host->h2b_state = H2BSTATE_IDLE; 1393 edma_host->b2h_state = B2HSTATE_IDLE; 1394 1395 #ifdef HAVE_TIMER_SETUP 1396 timer_setup(&edma_host->heartbeat_timer, 1397 edma_host_heartbeat_timer, 0); 1398 #else 1399 setup_timer(&edma_host->heartbeat_timer, 1400 edma_host_heartbeat_timer, 1401 (unsigned long)edma_host); 1402 #endif 1403 (void)mod_timer(&edma_host->heartbeat_timer, 1404 jiffies_64 + HEARTBEAT_TIMER_INTERVAL_CHECK); 1405 1406 pnm = (struct notify_msg *)edma_host->edma_flag; 1407 if (pnm) 1408 pnm->host_registered = REGISTERED; 1409 1410 GET_SYS_SECONDS(edma_host->statistics.init_time); 1411

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