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Subjectdrivers/scsi/myrs.c:2434:13: sparse: sparse: incorrect type in assignment (different base types)
Hi Guenter,

First bad commit (maybe != root cause):

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 12119cfa1052d512a92524e90ebee85029a918f8
commit: a18b14d8886614b3c7d290c4cfc33389822b0535 riscv: Disable STACKPROTECTOR_PER_TASK if GCC_PLUGIN_RANDSTRUCT is enabled
date: 4 months ago
config: riscv-allmodconfig (https://download.01.org/0day-ci/archive/20211205/202112050107.2l2GufNo-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 11.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a18b14d8886614b3c7d290c4cfc33389822b0535
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout a18b14d8886614b3c7d290c4cfc33389822b0535
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash arch/riscv/ drivers/scsi/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
drivers/scsi/myrs.c:2267:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __iomem *base @@ got struct myrs_hba *cs @@
drivers/scsi/myrs.c:2267:34: sparse: expected void [noderef] __iomem *base
drivers/scsi/myrs.c:2267:34: sparse: got struct myrs_hba *cs
drivers/scsi/myrs.c:2419:9: sparse: sparse: cast from restricted __le32
drivers/scsi/myrs.c:2472:9: sparse: sparse: cast from restricted __le32
drivers/scsi/myrs.c:2412:9: sparse: sparse: cast from restricted __le32
drivers/scsi/myrs.c:2472:9: sparse: sparse: cast from restricted __le32
drivers/scsi/myrs.c:2405:9: sparse: sparse: cast from restricted __le32
>> drivers/scsi/myrs.c:2434:13: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] val @@ got unsigned int [assigned] [usertype] __v @@
drivers/scsi/myrs.c:2434:13: sparse: expected restricted __le32 [usertype] val
drivers/scsi/myrs.c:2434:13: sparse: got unsigned int [assigned] [usertype] __v
drivers/scsi/myrs.c:2504:13: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] val @@ got unsigned int [assigned] [usertype] __v @@
drivers/scsi/myrs.c:2504:13: sparse: expected restricted __le32 [usertype] val
drivers/scsi/myrs.c:2504:13: sparse: got unsigned int [assigned] [usertype] __v
drivers/scsi/myrs.c:2507:18: sparse: sparse: restricted __le32 degrades to integer
drivers/scsi/myrs.c:2412:9: sparse: sparse: cast from restricted __le32
drivers/scsi/myrs.c:2465:9: sparse: sparse: cast from restricted __le32
drivers/scsi/myrs.c:2450:9: sparse: sparse: cast from restricted __le32
drivers/scsi/myrs.c:2426:13: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] val @@ got unsigned int [assigned] [usertype] __v @@
drivers/scsi/myrs.c:2426:13: sparse: expected restricted __le32 [usertype] val
drivers/scsi/myrs.c:2426:13: sparse: got unsigned int [assigned] [usertype] __v
drivers/scsi/myrs.c:2398:9: sparse: sparse: cast from restricted __le32
drivers/scsi/myrs.c:2457:13: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] val @@ got unsigned int [assigned] [usertype] __v @@
drivers/scsi/myrs.c:2457:13: sparse: expected restricted __le32 [usertype] val
drivers/scsi/myrs.c:2457:13: sparse: got unsigned int [assigned] [usertype] __v
drivers/scsi/myrs.c:2442:9: sparse: sparse: cast from restricted __le32
drivers/scsi/myrs.c:2405:9: sparse: sparse: cast from restricted __le32

vim +2434 drivers/scsi/myrs.c

77266186397c6c Hannes Reinecke 2018-10-17 2258
77266186397c6c Hannes Reinecke 2018-10-17 2259 static void myrs_cleanup(struct myrs_hba *cs)
77266186397c6c Hannes Reinecke 2018-10-17 2260 {
77266186397c6c Hannes Reinecke 2018-10-17 2261 struct pci_dev *pdev = cs->pdev;
77266186397c6c Hannes Reinecke 2018-10-17 2262
77266186397c6c Hannes Reinecke 2018-10-17 2263 /* Free the memory mailbox, status, and related structures */
77266186397c6c Hannes Reinecke 2018-10-17 2264 myrs_unmap(cs);
77266186397c6c Hannes Reinecke 2018-10-17 2265
77266186397c6c Hannes Reinecke 2018-10-17 2266 if (cs->mmio_base) {
77266186397c6c Hannes Reinecke 2018-10-17 @2267 cs->disable_intr(cs);
77266186397c6c Hannes Reinecke 2018-10-17 2268 iounmap(cs->mmio_base);
2bb817712e2f77 Lv Yunlong 2021-03-10 2269 cs->mmio_base = NULL;
77266186397c6c Hannes Reinecke 2018-10-17 2270 }
77266186397c6c Hannes Reinecke 2018-10-17 2271 if (cs->irq)
77266186397c6c Hannes Reinecke 2018-10-17 2272 free_irq(cs->irq, cs);
77266186397c6c Hannes Reinecke 2018-10-17 2273 if (cs->io_addr)
77266186397c6c Hannes Reinecke 2018-10-17 2274 release_region(cs->io_addr, 0x80);
77266186397c6c Hannes Reinecke 2018-10-17 2275 pci_set_drvdata(pdev, NULL);
77266186397c6c Hannes Reinecke 2018-10-17 2276 pci_disable_device(pdev);
77266186397c6c Hannes Reinecke 2018-10-17 2277 scsi_host_put(cs->host);
77266186397c6c Hannes Reinecke 2018-10-17 2278 }
77266186397c6c Hannes Reinecke 2018-10-17 2279
77266186397c6c Hannes Reinecke 2018-10-17 2280 static struct myrs_hba *myrs_detect(struct pci_dev *pdev,
77266186397c6c Hannes Reinecke 2018-10-17 2281 const struct pci_device_id *entry)
77266186397c6c Hannes Reinecke 2018-10-17 2282 {
77266186397c6c Hannes Reinecke 2018-10-17 2283 struct myrs_privdata *privdata =
77266186397c6c Hannes Reinecke 2018-10-17 2284 (struct myrs_privdata *)entry->driver_data;
77266186397c6c Hannes Reinecke 2018-10-17 2285 irq_handler_t irq_handler = privdata->irq_handler;
77266186397c6c Hannes Reinecke 2018-10-17 2286 unsigned int mmio_size = privdata->mmio_size;
77266186397c6c Hannes Reinecke 2018-10-17 2287 struct myrs_hba *cs = NULL;
77266186397c6c Hannes Reinecke 2018-10-17 2288
77266186397c6c Hannes Reinecke 2018-10-17 2289 cs = myrs_alloc_host(pdev, entry);
77266186397c6c Hannes Reinecke 2018-10-17 2290 if (!cs) {
77266186397c6c Hannes Reinecke 2018-10-17 2291 dev_err(&pdev->dev, "Unable to allocate Controller\n");
77266186397c6c Hannes Reinecke 2018-10-17 2292 return NULL;
77266186397c6c Hannes Reinecke 2018-10-17 2293 }
77266186397c6c Hannes Reinecke 2018-10-17 2294 cs->pdev = pdev;
77266186397c6c Hannes Reinecke 2018-10-17 2295
77266186397c6c Hannes Reinecke 2018-10-17 2296 if (pci_enable_device(pdev))
77266186397c6c Hannes Reinecke 2018-10-17 2297 goto Failure;
77266186397c6c Hannes Reinecke 2018-10-17 2298
77266186397c6c Hannes Reinecke 2018-10-17 2299 cs->pci_addr = pci_resource_start(pdev, 0);
77266186397c6c Hannes Reinecke 2018-10-17 2300
77266186397c6c Hannes Reinecke 2018-10-17 2301 pci_set_drvdata(pdev, cs);
77266186397c6c Hannes Reinecke 2018-10-17 2302 spin_lock_init(&cs->queue_lock);
77266186397c6c Hannes Reinecke 2018-10-17 2303 /* Map the Controller Register Window. */
77266186397c6c Hannes Reinecke 2018-10-17 2304 if (mmio_size < PAGE_SIZE)
77266186397c6c Hannes Reinecke 2018-10-17 2305 mmio_size = PAGE_SIZE;
4bdc0d676a6431 Christoph Hellwig 2020-01-06 2306 cs->mmio_base = ioremap(cs->pci_addr & PAGE_MASK, mmio_size);
77266186397c6c Hannes Reinecke 2018-10-17 2307 if (cs->mmio_base == NULL) {
77266186397c6c Hannes Reinecke 2018-10-17 2308 dev_err(&pdev->dev,
77266186397c6c Hannes Reinecke 2018-10-17 2309 "Unable to map Controller Register Window\n");
77266186397c6c Hannes Reinecke 2018-10-17 2310 goto Failure;
77266186397c6c Hannes Reinecke 2018-10-17 2311 }
77266186397c6c Hannes Reinecke 2018-10-17 2312
77266186397c6c Hannes Reinecke 2018-10-17 2313 cs->io_base = cs->mmio_base + (cs->pci_addr & ~PAGE_MASK);
77266186397c6c Hannes Reinecke 2018-10-17 2314 if (privdata->hw_init(pdev, cs, cs->io_base))
77266186397c6c Hannes Reinecke 2018-10-17 2315 goto Failure;
77266186397c6c Hannes Reinecke 2018-10-17 2316
77266186397c6c Hannes Reinecke 2018-10-17 2317 /* Acquire shared access to the IRQ Channel. */
77266186397c6c Hannes Reinecke 2018-10-17 2318 if (request_irq(pdev->irq, irq_handler, IRQF_SHARED, "myrs", cs) < 0) {
77266186397c6c Hannes Reinecke 2018-10-17 2319 dev_err(&pdev->dev,
77266186397c6c Hannes Reinecke 2018-10-17 2320 "Unable to acquire IRQ Channel %d\n", pdev->irq);
77266186397c6c Hannes Reinecke 2018-10-17 2321 goto Failure;
77266186397c6c Hannes Reinecke 2018-10-17 2322 }
77266186397c6c Hannes Reinecke 2018-10-17 2323 cs->irq = pdev->irq;
77266186397c6c Hannes Reinecke 2018-10-17 2324 return cs;
77266186397c6c Hannes Reinecke 2018-10-17 2325
77266186397c6c Hannes Reinecke 2018-10-17 2326 Failure:
77266186397c6c Hannes Reinecke 2018-10-17 2327 dev_err(&pdev->dev,
77266186397c6c Hannes Reinecke 2018-10-17 2328 "Failed to initialize Controller\n");
77266186397c6c Hannes Reinecke 2018-10-17 2329 myrs_cleanup(cs);
77266186397c6c Hannes Reinecke 2018-10-17 2330 return NULL;
77266186397c6c Hannes Reinecke 2018-10-17 2331 }
77266186397c6c Hannes Reinecke 2018-10-17 2332
8a692fdb1d04f5 Lee Jones 2020-07-13 2333 /*
77266186397c6c Hannes Reinecke 2018-10-17 2334 * myrs_err_status reports Controller BIOS Messages passed through
8a692fdb1d04f5 Lee Jones 2020-07-13 2335 * the Error Status Register when the driver performs the BIOS handshaking.
8a692fdb1d04f5 Lee Jones 2020-07-13 2336 * It returns true for fatal errors and false otherwise.
77266186397c6c Hannes Reinecke 2018-10-17 2337 */
77266186397c6c Hannes Reinecke 2018-10-17 2338
77266186397c6c Hannes Reinecke 2018-10-17 2339 static bool myrs_err_status(struct myrs_hba *cs, unsigned char status,
77266186397c6c Hannes Reinecke 2018-10-17 2340 unsigned char parm0, unsigned char parm1)
77266186397c6c Hannes Reinecke 2018-10-17 2341 {
77266186397c6c Hannes Reinecke 2018-10-17 2342 struct pci_dev *pdev = cs->pdev;
77266186397c6c Hannes Reinecke 2018-10-17 2343
77266186397c6c Hannes Reinecke 2018-10-17 2344 switch (status) {
77266186397c6c Hannes Reinecke 2018-10-17 2345 case 0x00:
77266186397c6c Hannes Reinecke 2018-10-17 2346 dev_info(&pdev->dev,
77266186397c6c Hannes Reinecke 2018-10-17 2347 "Physical Device %d:%d Not Responding\n",
77266186397c6c Hannes Reinecke 2018-10-17 2348 parm1, parm0);
77266186397c6c Hannes Reinecke 2018-10-17 2349 break;
77266186397c6c Hannes Reinecke 2018-10-17 2350 case 0x08:
77266186397c6c Hannes Reinecke 2018-10-17 2351 dev_notice(&pdev->dev, "Spinning Up Drives\n");
77266186397c6c Hannes Reinecke 2018-10-17 2352 break;
77266186397c6c Hannes Reinecke 2018-10-17 2353 case 0x30:
77266186397c6c Hannes Reinecke 2018-10-17 2354 dev_notice(&pdev->dev, "Configuration Checksum Error\n");
77266186397c6c Hannes Reinecke 2018-10-17 2355 break;
77266186397c6c Hannes Reinecke 2018-10-17 2356 case 0x60:
77266186397c6c Hannes Reinecke 2018-10-17 2357 dev_notice(&pdev->dev, "Mirror Race Recovery Failed\n");
77266186397c6c Hannes Reinecke 2018-10-17 2358 break;
77266186397c6c Hannes Reinecke 2018-10-17 2359 case 0x70:
77266186397c6c Hannes Reinecke 2018-10-17 2360 dev_notice(&pdev->dev, "Mirror Race Recovery In Progress\n");
77266186397c6c Hannes Reinecke 2018-10-17 2361 break;
77266186397c6c Hannes Reinecke 2018-10-17 2362 case 0x90:
77266186397c6c Hannes Reinecke 2018-10-17 2363 dev_notice(&pdev->dev, "Physical Device %d:%d COD Mismatch\n",
77266186397c6c Hannes Reinecke 2018-10-17 2364 parm1, parm0);
77266186397c6c Hannes Reinecke 2018-10-17 2365 break;
77266186397c6c Hannes Reinecke 2018-10-17 2366 case 0xA0:
77266186397c6c Hannes Reinecke 2018-10-17 2367 dev_notice(&pdev->dev, "Logical Drive Installation Aborted\n");
77266186397c6c Hannes Reinecke 2018-10-17 2368 break;
77266186397c6c Hannes Reinecke 2018-10-17 2369 case 0xB0:
77266186397c6c Hannes Reinecke 2018-10-17 2370 dev_notice(&pdev->dev, "Mirror Race On A Critical Logical Drive\n");
77266186397c6c Hannes Reinecke 2018-10-17 2371 break;
77266186397c6c Hannes Reinecke 2018-10-17 2372 case 0xD0:
77266186397c6c Hannes Reinecke 2018-10-17 2373 dev_notice(&pdev->dev, "New Controller Configuration Found\n");
77266186397c6c Hannes Reinecke 2018-10-17 2374 break;
77266186397c6c Hannes Reinecke 2018-10-17 2375 case 0xF0:
77266186397c6c Hannes Reinecke 2018-10-17 2376 dev_err(&pdev->dev, "Fatal Memory Parity Error\n");
77266186397c6c Hannes Reinecke 2018-10-17 2377 return true;
77266186397c6c Hannes Reinecke 2018-10-17 2378 default:
77266186397c6c Hannes Reinecke 2018-10-17 2379 dev_err(&pdev->dev, "Unknown Initialization Error %02X\n",
77266186397c6c Hannes Reinecke 2018-10-17 2380 status);
77266186397c6c Hannes Reinecke 2018-10-17 2381 return true;
77266186397c6c Hannes Reinecke 2018-10-17 2382 }
77266186397c6c Hannes Reinecke 2018-10-17 2383 return false;
77266186397c6c Hannes Reinecke 2018-10-17 2384 }
77266186397c6c Hannes Reinecke 2018-10-17 2385
77266186397c6c Hannes Reinecke 2018-10-17 2386 /*
77266186397c6c Hannes Reinecke 2018-10-17 2387 * Hardware-specific functions
77266186397c6c Hannes Reinecke 2018-10-17 2388 */
77266186397c6c Hannes Reinecke 2018-10-17 2389
77266186397c6c Hannes Reinecke 2018-10-17 2390 /*
77266186397c6c Hannes Reinecke 2018-10-17 2391 * DAC960 GEM Series Controllers.
77266186397c6c Hannes Reinecke 2018-10-17 2392 */
77266186397c6c Hannes Reinecke 2018-10-17 2393
77266186397c6c Hannes Reinecke 2018-10-17 2394 static inline void DAC960_GEM_hw_mbox_new_cmd(void __iomem *base)
77266186397c6c Hannes Reinecke 2018-10-17 2395 {
77266186397c6c Hannes Reinecke 2018-10-17 2396 __le32 val = cpu_to_le32(DAC960_GEM_IDB_HWMBOX_NEW_CMD << 24);
77266186397c6c Hannes Reinecke 2018-10-17 2397
77266186397c6c Hannes Reinecke 2018-10-17 2398 writel(val, base + DAC960_GEM_IDB_READ_OFFSET);
77266186397c6c Hannes Reinecke 2018-10-17 2399 }
77266186397c6c Hannes Reinecke 2018-10-17 2400
77266186397c6c Hannes Reinecke 2018-10-17 2401 static inline void DAC960_GEM_ack_hw_mbox_status(void __iomem *base)
77266186397c6c Hannes Reinecke 2018-10-17 2402 {
77266186397c6c Hannes Reinecke 2018-10-17 2403 __le32 val = cpu_to_le32(DAC960_GEM_IDB_HWMBOX_ACK_STS << 24);
77266186397c6c Hannes Reinecke 2018-10-17 2404
77266186397c6c Hannes Reinecke 2018-10-17 2405 writel(val, base + DAC960_GEM_IDB_CLEAR_OFFSET);
77266186397c6c Hannes Reinecke 2018-10-17 2406 }
77266186397c6c Hannes Reinecke 2018-10-17 2407
77266186397c6c Hannes Reinecke 2018-10-17 2408 static inline void DAC960_GEM_reset_ctrl(void __iomem *base)
77266186397c6c Hannes Reinecke 2018-10-17 2409 {
77266186397c6c Hannes Reinecke 2018-10-17 2410 __le32 val = cpu_to_le32(DAC960_GEM_IDB_CTRL_RESET << 24);
77266186397c6c Hannes Reinecke 2018-10-17 2411
77266186397c6c Hannes Reinecke 2018-10-17 2412 writel(val, base + DAC960_GEM_IDB_READ_OFFSET);
77266186397c6c Hannes Reinecke 2018-10-17 2413 }
77266186397c6c Hannes Reinecke 2018-10-17 2414
77266186397c6c Hannes Reinecke 2018-10-17 2415 static inline void DAC960_GEM_mem_mbox_new_cmd(void __iomem *base)
77266186397c6c Hannes Reinecke 2018-10-17 2416 {
77266186397c6c Hannes Reinecke 2018-10-17 2417 __le32 val = cpu_to_le32(DAC960_GEM_IDB_HWMBOX_NEW_CMD << 24);
77266186397c6c Hannes Reinecke 2018-10-17 2418
77266186397c6c Hannes Reinecke 2018-10-17 2419 writel(val, base + DAC960_GEM_IDB_READ_OFFSET);
77266186397c6c Hannes Reinecke 2018-10-17 2420 }
77266186397c6c Hannes Reinecke 2018-10-17 2421
77266186397c6c Hannes Reinecke 2018-10-17 2422 static inline bool DAC960_GEM_hw_mbox_is_full(void __iomem *base)
77266186397c6c Hannes Reinecke 2018-10-17 2423 {
77266186397c6c Hannes Reinecke 2018-10-17 2424 __le32 val;
77266186397c6c Hannes Reinecke 2018-10-17 2425
77266186397c6c Hannes Reinecke 2018-10-17 2426 val = readl(base + DAC960_GEM_IDB_READ_OFFSET);
77266186397c6c Hannes Reinecke 2018-10-17 2427 return (le32_to_cpu(val) >> 24) & DAC960_GEM_IDB_HWMBOX_FULL;
77266186397c6c Hannes Reinecke 2018-10-17 2428 }
77266186397c6c Hannes Reinecke 2018-10-17 2429
77266186397c6c Hannes Reinecke 2018-10-17 2430 static inline bool DAC960_GEM_init_in_progress(void __iomem *base)
77266186397c6c Hannes Reinecke 2018-10-17 2431 {
77266186397c6c Hannes Reinecke 2018-10-17 2432 __le32 val;
77266186397c6c Hannes Reinecke 2018-10-17 2433
77266186397c6c Hannes Reinecke 2018-10-17 @2434 val = readl(base + DAC960_GEM_IDB_READ_OFFSET);
77266186397c6c Hannes Reinecke 2018-10-17 2435 return (le32_to_cpu(val) >> 24) & DAC960_GEM_IDB_INIT_IN_PROGRESS;
77266186397c6c Hannes Reinecke 2018-10-17 2436 }
77266186397c6c Hannes Reinecke 2018-10-17 2437

:::::: The code at line 2434 was first introduced by commit
:::::: 77266186397c6c782a3f670d32808a9671806ec5 scsi: myrs: Add Mylex RAID controller (SCSI interface)

:::::: TO: Hannes Reinecke <hare@suse.com>
:::::: CC: Martin K. Petersen <martin.petersen@oracle.com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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