drivers/video/fbdev/nvidia/nvidia.c:1429:17: sparse: sparse: incorrect type in argument 1 (different modifiers)

From: kernel test robot
Date: Mon Apr 03 2023 - 19:07:16 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 148341f0a2f53b5e8808d093333d85170586a15d
commit: 04119ab1a49fc41cb70f0472be5455af268fa260 nvidiafb: detect the hardware support before removing console.
date: 8 weeks ago
config: m68k-randconfig-s041-20230403 (https://download.01.org/0day-ci/archive/20230404/202304040632.X21LXHrN-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 12.1.0
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: v0.6.4-39-gce1a6720-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04119ab1a49fc41cb70f0472be5455af268fa260
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 04119ab1a49fc41cb70f0472be5455af268fa260
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=m68k olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=m68k SHELL=/bin/bash drivers/video/fbdev/nvidia/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202304040632.X21LXHrN-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
>> drivers/video/fbdev/nvidia/nvidia.c:1429:17: sparse: sparse: incorrect type in argument 1 (different modifiers) @@ expected void [noderef] __iomem *addr @@ got unsigned int volatile [noderef] [usertype] __iomem *[assigned] REGS @@
drivers/video/fbdev/nvidia/nvidia.c:1429:17: sparse: expected void [noderef] __iomem *addr
drivers/video/fbdev/nvidia/nvidia.c:1429:17: sparse: got unsigned int volatile [noderef] [usertype] __iomem *[assigned] REGS
drivers/video/fbdev/nvidia/nvidia.c:1447:20: sparse: sparse: incorrect type in argument 1 (different modifiers) @@ expected void [noderef] __iomem *addr @@ got unsigned int volatile [noderef] [usertype] __iomem *REGS @@
drivers/video/fbdev/nvidia/nvidia.c:1447:20: sparse: expected void [noderef] __iomem *addr
drivers/video/fbdev/nvidia/nvidia.c:1447:20: sparse: got unsigned int volatile [noderef] [usertype] __iomem *REGS

vim +1429 drivers/video/fbdev/nvidia/nvidia.c

1273
1274 static int nvidiafb_probe(struct pci_dev *pd, const struct pci_device_id *ent)
1275 {
1276 struct nvidia_par *par;
1277 struct fb_info *info;
1278 unsigned short cmd;
1279 int ret;
1280 volatile u32 __iomem *REGS;
1281 int Chipset;
1282 u32 Architecture;
1283
1284 NVTRACE_ENTER();
1285 assert(pd != NULL);
1286
1287 if (pci_enable_device(pd)) {
1288 printk(KERN_ERR PFX "cannot enable PCI device\n");
1289 return -ENODEV;
1290 }
1291
1292 /* enable IO and mem if not already done */
1293 pci_read_config_word(pd, PCI_COMMAND, &cmd);
1294 cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
1295 pci_write_config_word(pd, PCI_COMMAND, cmd);
1296
1297 nvidiafb_fix.mmio_start = pci_resource_start(pd, 0);
1298 nvidiafb_fix.mmio_len = pci_resource_len(pd, 0);
1299
1300 REGS = ioremap(nvidiafb_fix.mmio_start, nvidiafb_fix.mmio_len);
1301 if (!REGS) {
1302 printk(KERN_ERR PFX "cannot ioremap MMIO base\n");
1303 return -ENODEV;
1304 }
1305
1306 Chipset = nvidia_get_chipset(pd, REGS);
1307 Architecture = nvidia_get_arch(Chipset);
1308 if (Architecture == 0) {
1309 printk(KERN_ERR PFX "unknown NV_ARCH\n");
1310 goto err_out;
1311 }
1312
1313 ret = aperture_remove_conflicting_pci_devices(pd, "nvidiafb");
1314 if (ret)
1315 goto err_out;
1316
1317 info = framebuffer_alloc(sizeof(struct nvidia_par), &pd->dev);
1318 if (!info)
1319 goto err_out;
1320
1321 par = info->par;
1322 par->pci_dev = pd;
1323 info->pixmap.addr = kzalloc(8 * 1024, GFP_KERNEL);
1324
1325 if (info->pixmap.addr == NULL)
1326 goto err_out_kfree;
1327
1328 if (pci_request_regions(pd, "nvidiafb")) {
1329 printk(KERN_ERR PFX "cannot request PCI regions\n");
1330 goto err_out_enable;
1331 }
1332
1333 par->FlatPanel = flatpanel;
1334 if (flatpanel == 1)
1335 printk(KERN_INFO PFX "flatpanel support enabled\n");
1336 par->FPDither = fpdither;
1337
1338 par->CRTCnumber = forceCRTC;
1339 par->FpScale = (!noscale);
1340 par->paneltweak = paneltweak;
1341 par->reverse_i2c = reverse_i2c;
1342
1343 nvidiafb_fix.smem_start = pci_resource_start(pd, 1);
1344
1345 par->REGS = REGS;
1346
1347 par->Chipset = Chipset;
1348 par->Architecture = Architecture;
1349
1350 sprintf(nvidiafb_fix.id, "NV%x", (pd->device & 0x0ff0) >> 4);
1351
1352 if (NVCommonSetup(info))
1353 goto err_out_free_base0;
1354
1355 par->FbAddress = nvidiafb_fix.smem_start;
1356 par->FbMapSize = par->RamAmountKBytes * 1024;
1357 if (vram && vram * 1024 * 1024 < par->FbMapSize)
1358 par->FbMapSize = vram * 1024 * 1024;
1359
1360 /* Limit amount of vram to 64 MB */
1361 if (par->FbMapSize > 64 * 1024 * 1024)
1362 par->FbMapSize = 64 * 1024 * 1024;
1363
1364 if(par->Architecture >= NV_ARCH_40)
1365 par->FbUsableSize = par->FbMapSize - (560 * 1024);
1366 else
1367 par->FbUsableSize = par->FbMapSize - (128 * 1024);
1368 par->ScratchBufferSize = (par->Architecture < NV_ARCH_10) ? 8 * 1024 :
1369 16 * 1024;
1370 par->ScratchBufferStart = par->FbUsableSize - par->ScratchBufferSize;
1371 par->CursorStart = par->FbUsableSize + (32 * 1024);
1372
1373 info->screen_base = ioremap_wc(nvidiafb_fix.smem_start,
1374 par->FbMapSize);
1375 info->screen_size = par->FbUsableSize;
1376 nvidiafb_fix.smem_len = par->RamAmountKBytes * 1024;
1377
1378 if (!info->screen_base) {
1379 printk(KERN_ERR PFX "cannot ioremap FB base\n");
1380 goto err_out_free_base1;
1381 }
1382
1383 par->FbStart = info->screen_base;
1384
1385 if (!nomtrr)
1386 par->wc_cookie = arch_phys_wc_add(nvidiafb_fix.smem_start,
1387 par->RamAmountKBytes * 1024);
1388
1389 info->fbops = &nvidia_fb_ops;
1390 info->fix = nvidiafb_fix;
1391
1392 if (nvidia_set_fbinfo(info) < 0) {
1393 printk(KERN_ERR PFX "error setting initial video mode\n");
1394 goto err_out_iounmap_fb;
1395 }
1396
1397 nvidia_save_vga(par, &par->SavedReg);
1398
1399 pci_set_drvdata(pd, info);
1400
1401 if (backlight)
1402 nvidia_bl_init(par);
1403
1404 if (register_framebuffer(info) < 0) {
1405 printk(KERN_ERR PFX "error registering nVidia framebuffer\n");
1406 goto err_out_iounmap_fb;
1407 }
1408
1409 printk(KERN_INFO PFX
1410 "PCI nVidia %s framebuffer (%dMB @ 0x%lX)\n",
1411 info->fix.id,
1412 par->FbMapSize / (1024 * 1024), info->fix.smem_start);
1413
1414 NVTRACE_LEAVE();
1415 return 0;
1416
1417 err_out_iounmap_fb:
1418 iounmap(info->screen_base);
1419 err_out_free_base1:
1420 fb_destroy_modedb(info->monspecs.modedb);
1421 nvidia_delete_i2c_busses(par);
1422 err_out_free_base0:
1423 pci_release_regions(pd);
1424 err_out_enable:
1425 kfree(info->pixmap.addr);
1426 err_out_kfree:
1427 framebuffer_release(info);
1428 err_out:
> 1429 iounmap(REGS);
1430 return -ENODEV;
1431 }
1432

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

Next message: Daniel Latypov: "Re: [PATCH v1] kunit: add tests for using current KUnit test field"
Previous message: Shuah Khan: "Re: [PATCH 4.19 00/84] 4.19.280-rc1 review"
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