CC: [email protected] CC: [email protected] CC: [email protected] TO: "Marek Behún" <[email protected]> CC: Lorenzo Pieralisi <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 79a72162048e42a677bc7336a9f5d86fc3ff9558 commit: 464de7e7fff767e87429cd7be09c4f2cb50a6ccb PCI: aardvark: Don't spam about PIO Response Status date: 8 weeks ago :::::: branch date: 18 hours ago :::::: commit date: 8 weeks ago config: riscv-randconfig-c006-20211130 (https://download.01.org/0day-ci/archive/20211206/[email protected]/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 25eb7fa01d7ebbe67648ea03841cda55b4239ab2) 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 # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=464de7e7fff767e87429cd7be09c4f2cb50a6ccb git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 464de7e7fff767e87429cd7be09c4f2cb50a6ccb # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv clang-analyzer If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> clang-analyzer warnings: (new ones prefixed by >>) ^ include/linux/err.h:22:34: note: expanded from macro 'IS_ERR_VALUE' #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:78:42: note: expanded from macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ include/linux/err.h:36:2: note: Returning zero, which participates in a condition later return IS_ERR_VALUE((unsigned long)ptr); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/pwm/core.c:787:6: note: Returning from 'IS_ERR' if (IS_ERR(pc)) { ^~~~~~~~~~ drivers/pwm/core.c:787:2: note: Taking false branch if (IS_ERR(pc)) { ^ drivers/pwm/core.c:796:6: note: Calling 'IS_ERR' if (IS_ERR(pwm)) ^~~~~~~~~~~ include/linux/err.h:36:9: note: Assuming the condition is false return IS_ERR_VALUE((unsigned long)ptr); ^ include/linux/err.h:22:34: note: expanded from macro 'IS_ERR_VALUE' #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:78:42: note: expanded from macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ include/linux/err.h:36:2: note: Returning zero, which participates in a condition later return IS_ERR_VALUE((unsigned long)ptr); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/pwm/core.c:796:6: note: Returning from 'IS_ERR' if (IS_ERR(pwm)) ^~~~~~~~~~~ drivers/pwm/core.c:796:2: note: Taking false branch if (IS_ERR(pwm)) ^ drivers/pwm/core.c:800:6: note: Calling 'IS_ERR' if (IS_ERR(dl)) { ^~~~~~~~~~ include/linux/err.h:36:2: note: Returning zero, which participates in a condition later return IS_ERR_VALUE((unsigned long)ptr); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/pwm/core.c:800:6: note: Returning from 'IS_ERR' if (IS_ERR(dl)) { ^~~~~~~~~~ drivers/pwm/core.c:800:2: note: Taking false branch if (IS_ERR(dl)) { ^ drivers/pwm/core.c:812:7: note: 'con_id' is null if (!con_id) { ^~~~~~ drivers/pwm/core.c:812:2: note: Taking true branch if (!con_id) { ^ drivers/pwm/core.c:815:7: note: 'err' is < 0 if (err < 0) ^~~ drivers/pwm/core.c:815:3: note: Taking true branch if (err < 0) ^ drivers/pwm/core.c:816:13: note: Access to field 'name' results in a dereference of a null pointer (loaded from variable 'np') con_id = np->name; ^~ Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. drivers/pci/ecam.c:129:15: warning: Value stored to 'bsz' during its initialization is never read [clang-analyzer-deadcode.DeadStores] unsigned int bsz = 1 << cfg->bus_shift; ^~~ ~~~~~~~~~~~~~~~~~~~ drivers/pci/ecam.c:129:15: note: Value stored to 'bsz' during its initialization is never read unsigned int bsz = 1 << cfg->bus_shift; ^~~ ~~~~~~~~~~~~~~~~~~~ drivers/pci/ecam.c:130:15: warning: Value stored to 'busn' during its initialization is never read [clang-analyzer-deadcode.DeadStores] unsigned int busn = bus->number; ^~~~ ~~~~~~~~~~~ drivers/pci/ecam.c:130:15: note: Value stored to 'busn' during its initialization is never read unsigned int busn = bus->number; ^~~~ ~~~~~~~~~~~ drivers/pci/ecam.c:151:28: warning: Value stored to 'cfg' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct pci_config_window *cfg = bus->sysdata; ^~~ ~~~~~~~~~~~~ drivers/pci/ecam.c:151:28: note: Value stored to 'cfg' during its initialization is never read struct pci_config_window *cfg = bus->sysdata; ^~~ ~~~~~~~~~~~~ drivers/pci/ecam.c:152:15: warning: Value stored to 'busn' during its initialization is never read [clang-analyzer-deadcode.DeadStores] unsigned int busn = bus->number; ^~~~ ~~~~~~~~~~~ drivers/pci/ecam.c:152:15: note: Value stored to 'busn' during its initialization is never read unsigned int busn = bus->number; ^~~~ ~~~~~~~~~~~ Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. >> drivers/pci/controller/pci-aardvark.c:595:17: warning: Value stored to 'dev' >> during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = &pcie->pdev->dev; ^~~ ~~~~~~~~~~~~~~~~ drivers/pci/controller/pci-aardvark.c:595:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = &pcie->pdev->dev; ^~~ ~~~~~~~~~~~~~~~~ >> drivers/pci/controller/pci-aardvark.c:682:3: warning: Value stored to >> 'str_posted' is never read [clang-analyzer-deadcode.DeadStores] str_posted = "Non-posted"; ^ ~~~~~~~~~~~~ drivers/pci/controller/pci-aardvark.c:682:3: note: Value stored to 'str_posted' is never read str_posted = "Non-posted"; ^ ~~~~~~~~~~~~ drivers/pci/controller/pci-aardvark.c:684:3: warning: Value stored to 'str_posted' is never read [clang-analyzer-deadcode.DeadStores] str_posted = "Posted"; ^ ~~~~~~~~ drivers/pci/controller/pci-aardvark.c:684:3: note: Value stored to 'str_posted' is never read str_posted = "Posted"; ^ ~~~~~~~~ Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. lib/string_helpers.c:111:12: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign] remainder += rounding[j]; ^ ~~~~~~~~~~~ lib/string_helpers.c:59:6: note: Assuming 'blk_size' is not equal to 0 if (blk_size == 0) ^~~~~~~~~~~~~ lib/string_helpers.c:59:2: note: Taking false branch if (blk_size == 0) ^ lib/string_helpers.c:61:6: note: Assuming 'size' is not equal to 0 if (size == 0) ^~~~~~~~~ lib/string_helpers.c:61:2: note: Taking false branch if (size == 0) ^ lib/string_helpers.c:75:2: note: Loop condition is false. Execution continues on line 80 while (blk_size >> 32) { ^ lib/string_helpers.c:80:2: note: Loop condition is false. Execution continues on line 87 while (size >> 32) { ^ lib/string_helpers.c:90:2: note: Loop condition is false. Execution continues on line 97 while (size >= divisor[units]) { ^ lib/string_helpers.c:98:14: note: Assuming the condition is true for (j = 0; sf_cap*10 < 1000; j++) ^~~~~~~~~~~~~~~~ lib/string_helpers.c:98:2: note: Loop condition is true. Entering loop body for (j = 0; sf_cap*10 < 1000; j++) ^ lib/string_helpers.c:98:14: note: Assuming the condition is true for (j = 0; sf_cap*10 < 1000; j++) ^~~~~~~~~~~~~~~~ lib/string_helpers.c:98:2: note: Loop condition is true. Entering loop body for (j = 0; sf_cap*10 < 1000; j++) ^ lib/string_helpers.c:98:14: note: Assuming the condition is true for (j = 0; sf_cap*10 < 1000; j++) ^~~~~~~~~~~~~~~~ lib/string_helpers.c:98:2: note: Loop condition is true. Entering loop body for (j = 0; sf_cap*10 < 1000; j++) ^ lib/string_helpers.c:98:32: note: The value 3 is assigned to 'j' for (j = 0; sf_cap*10 < 1000; j++) ^~~ lib/string_helpers.c:98:14: note: Assuming the condition is false for (j = 0; sf_cap*10 < 1000; j++) ^~~~~~~~~~~~~~~~ lib/string_helpers.c:98:2: note: Loop condition is false. Execution continues on line 101 for (j = 0; sf_cap*10 < 1000; j++) ^ lib/string_helpers.c:101:6: note: Assuming 'units' is not equal to STRING_UNITS_2 if (units == STRING_UNITS_2) { ^~~~~~~~~~~~~~~~~~~~~~~ lib/string_helpers.c:101:2: note: Taking false branch if (units == STRING_UNITS_2) { ^ lib/string_helpers.c:111:12: note: Assigned value is garbage or undefined remainder += rounding[j]; ^ ~~~~~~~~~~~ Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. drivers/pci/controller/dwc/pci-dra7xx.c:290:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = pci->dev; ^~~ ~~~~~~~~ drivers/pci/controller/dwc/pci-dra7xx.c:290:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = pci->dev; ^~~ ~~~~~~~~ Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. vim +/dev +595 drivers/pci/controller/pci-aardvark.c 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 592 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 593 static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u32 *val) 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 594 { 9aec2feaf787a7 drivers/pci/host/pci-aardvark.c Bjorn Helgaas 2016-10-06 @595 struct device *dev = &pcie->pdev->dev; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 596 u32 reg; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 597 unsigned int status; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 598 char *strcomp_status, *str_posted; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 599 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 600 reg = advk_readl(pcie, PIO_STAT); 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 601 status = (reg & PIO_COMPLETION_STATUS_MASK) >> 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 602 PIO_COMPLETION_STATUS_SHIFT; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 603 fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 604 /* fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 605 * According to HW spec, the PIO status check sequence as below: fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 606 * 1) even if COMPLETION_STATUS(bit9:7) indicates successful, fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 607 * it still needs to check Error Status(bit11), only when this bit fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 608 * indicates no error happen, the operation is successful. fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 609 * 2) value Unsupported Request(1) of COMPLETION_STATUS(bit9:7) only fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 610 * means a PIO write error, and for PIO read it is successful with fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 611 * a read value of 0xFFFFFFFF. fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 612 * 3) value Completion Retry Status(CRS) of COMPLETION_STATUS(bit9:7) fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 613 * only means a PIO write error, and for PIO read it is successful fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 614 * with a read value of 0xFFFF0001. fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 615 * 4) value Completer Abort (CA) of COMPLETION_STATUS(bit9:7) means fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 616 * error for both PIO read and PIO write operation. fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 617 * 5) other errors are indicated as 'unknown'. fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 618 */ 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 619 switch (status) { fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 620 case PIO_COMPLETION_STATUS_OK: fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 621 if (reg & PIO_ERR_STATUS) { fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 622 strcomp_status = "COMP_ERR"; fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 623 break; fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 624 } fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 625 /* Get the read result */ fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 626 if (val) fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 627 *val = advk_readl(pcie, PIO_RD_DATA); fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 628 /* No error */ fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 629 strcomp_status = NULL; fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 630 break; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 631 case PIO_COMPLETION_STATUS_UR: 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 632 strcomp_status = "UR"; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 633 break; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 634 case PIO_COMPLETION_STATUS_CRS: 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 635 if (allow_crs && val) { 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 636 /* PCIe r4.0, sec 2.3.2, says: 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 637 * If CRS Software Visibility is enabled: 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 638 * For a Configuration Read Request that includes both 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 639 * bytes of the Vendor ID field of a device Function's 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 640 * Configuration Space Header, the Root Complex must 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 641 * complete the Request to the host by returning a 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 642 * read-data value of 0001h for the Vendor ID field and 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 643 * all '1's for any additional bytes included in the 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 644 * request. 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 645 * 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 646 * So CRS in this case is not an error status. 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 647 */ 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 648 *val = CFG_RD_CRS_VAL; 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 649 strcomp_status = NULL; 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 650 break; 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 651 } fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 652 /* PCIe r4.0, sec 2.3.2, says: fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 653 * If CRS Software Visibility is not enabled, the Root Complex fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 654 * must re-issue the Configuration Request as a new Request. 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 655 * If CRS Software Visibility is enabled: For a Configuration 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 656 * Write Request or for any other Configuration Read Request, 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 657 * the Root Complex must re-issue the Configuration Request as 43f5c77bcbd27c drivers/pci/controller/pci-aardvark.c Pali Rohár 2021-07-22 658 * a new Request. fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 659 * A Root Complex implementation may choose to limit the number fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 660 * of Configuration Request/CRS Completion Status loops before fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 661 * determining that something is wrong with the target of the fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 662 * Request and taking appropriate action, e.g., complete the fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 663 * Request to the host as a failed transaction. fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 664 * fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 665 * To simplify implementation do not re-issue the Configuration fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 666 * Request and complete the Request as a failed transaction. fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 667 */ 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 668 strcomp_status = "CRS"; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 669 break; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 670 case PIO_COMPLETION_STATUS_CA: 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 671 strcomp_status = "CA"; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 672 break; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 673 default: 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 674 strcomp_status = "Unknown"; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 675 break; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 676 } 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 677 fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 678 if (!strcomp_status) fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 679 return 0; fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 680 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 681 if (reg & PIO_NON_POSTED_REQ) 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 @682 str_posted = "Non-posted"; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 683 else 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 684 str_posted = "Posted"; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 685 464de7e7fff767 drivers/pci/controller/pci-aardvark.c Marek Behún 2021-10-05 686 dev_dbg(dev, "%s PIO Response Status: %s, %#x @ %#x\n", 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 687 str_posted, strcomp_status, reg, advk_readl(pcie, PIO_ADDR_LS)); fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 688 fcb461e2bc8b83 drivers/pci/controller/pci-aardvark.c Evan Wang 2021-07-22 689 return -EFAULT; 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 690 } 8c39d710363c14 drivers/pci/host/pci-aardvark.c Thomas Petazzoni 2016-06-30 691 :::::: The code at line 595 was first introduced by commit :::::: 9aec2feaf787a766f802172e9021c7422029bc64 PCI: aardvark: Add local struct device pointers :::::: TO: Bjorn Helgaas <[email protected]> :::::: CC: Bjorn Helgaas <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected] _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
