Messages in this thread |  | | Date | Sat, 2 Apr 2022 19:26:12 +0800 | From | kernel test robot <> | Subject | drivers/cxl/pci.c:439:7: warning: Local variable 'rc' shadows outer variable [shadowVariable] |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 88e6c0207623874922712e162e25d9dafd39661e commit: 523e594d9cc03db962c741ce02c8a58aab58a123 cxl/pci: Implement wait for media active date: 7 weeks ago compiler: alpha-linux-gcc (GCC) 11.2.0
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
cppcheck warnings: (new ones prefixed by >>) >> drivers/cxl/pci.c:439:7: warning: Local variable 'rc' shadows outer variable [shadowVariable] int rc; ^ drivers/cxl/pci.c:431:6: note: Shadowed declaration int rc, i; ^ drivers/cxl/pci.c:439:7: note: Shadow variable int rc; ^
cppcheck possible warnings: (new ones prefixed by >>, may not real problems)
>> drivers/cxl/port.c:63:1: warning: There is an unknown macro here somewhere. Configuration is required. If __stringify is a macro then please configure it. [unknownMacro] MODULE_ALIAS_CXL(CXL_DEVICE_PORT); ^ --
vim +/rc +439 drivers/cxl/pci.c
420 421 /* 422 * Wait up to @mbox_ready_timeout for the device to report memory 423 * active. 424 */ 425 static int wait_for_media_ready(struct cxl_dev_state *cxlds) 426 { 427 struct pci_dev *pdev = to_pci_dev(cxlds->dev); 428 int d = cxlds->cxl_dvsec; 429 bool active = false; 430 u64 md_status; 431 int rc, i; 432 433 rc = wait_for_valid(cxlds); 434 if (rc) 435 return rc; 436 437 for (i = mbox_ready_timeout; i; i--) { 438 u32 temp; > 439 int rc; 440 441 rc = pci_read_config_dword( 442 pdev, d + CXL_DVSEC_RANGE_SIZE_LOW(0), &temp); 443 if (rc) 444 return rc; 445 446 active = FIELD_GET(CXL_DVSEC_MEM_ACTIVE, temp); 447 if (active) 448 break; 449 msleep(1000); 450 } 451 452 if (!active) { 453 dev_err(&pdev->dev, 454 "timeout awaiting memory active after %d seconds\n", 455 mbox_ready_timeout); 456 return -ETIMEDOUT; 457 } 458 459 md_status = readq(cxlds->regs.memdev + CXLMDEV_STATUS_OFFSET); 460 if (!CXLMDEV_READY(md_status)) 461 return -EIO; 462 463 return 0; 464 } 465
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