CC: l...@lists.linux.dev CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: linux-ker...@vger.kernel.org TO: "Marek Behún" <ka...@kernel.org> CC: Lorenzo Pieralisi <lorenzo.pieral...@arm.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: aad611a868d16cdc16a7d4a764cef955293e47e3 commit: 464de7e7fff767e87429cd7be09c4f2cb50a6ccb PCI: aardvark: Don't spam about PIO Response Status date: 5 months ago :::::: branch date: 20 hours ago :::::: commit date: 5 months ago config: riscv-randconfig-c006-20220307 (https://download.01.org/0day-ci/archive/20220313/202203132225.vkakprox-...@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e) 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 <l...@intel.com> clang-analyzer warnings: (new ones prefixed by >>) ^~~~~~~~~~~~~~~~~ drivers/gpu/drm/savage/savage_bci.c:987:9: note: Returning from 'savage_freelist_get' buf = savage_freelist_get(dev); ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/savage/savage_bci.c:988:8: note: 'buf' is non-null if (!buf) ^~~ drivers/gpu/drm/savage/savage_bci.c:988:3: note: Taking false branch if (!buf) ^ drivers/gpu/drm/savage/savage_bci.c:993:7: note: Assuming the condition is false if (copy_to_user(&d->request_indices[i], ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/savage/savage_bci.c:993:3: note: Taking false branch if (copy_to_user(&d->request_indices[i], ^ drivers/gpu/drm/savage/savage_bci.c:996:7: note: Assuming the condition is false if (copy_to_user(&d->request_sizes[i], ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/savage/savage_bci.c:996:3: note: Taking false branch if (copy_to_user(&d->request_sizes[i], ^ drivers/gpu/drm/savage/savage_bci.c:986:29: note: Assuming 'i' is < field 'request_count' for (i = d->granted_count; i < d->request_count; i++) { ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/savage/savage_bci.c:986:2: note: Loop condition is true. Entering loop body for (i = d->granted_count; i < d->request_count; i++) { ^ drivers/gpu/drm/savage/savage_bci.c:987:9: note: Calling 'savage_freelist_get' buf = savage_freelist_get(dev); ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/savage/savage_bci.c:256:2: note: Field 'status_ptr' is non-null UPDATE_EVENT_COUNTER(); ^ drivers/gpu/drm/savage/savage_drv.h:562:16: note: expanded from macro 'UPDATE_EVENT_COUNTER' if (dev_priv->status_ptr) { \ ^ drivers/gpu/drm/savage/savage_bci.c:256:2: note: Taking true branch UPDATE_EVENT_COUNTER(); ^ drivers/gpu/drm/savage/savage_drv.h:562:2: note: expanded from macro 'UPDATE_EVENT_COUNTER' if (dev_priv->status_ptr) { \ ^ drivers/gpu/drm/savage/savage_bci.c:256:2: note: 'count' is >= field 'event_counter' UPDATE_EVENT_COUNTER(); ^ drivers/gpu/drm/savage/savage_drv.h:566:7: note: expanded from macro 'UPDATE_EVENT_COUNTER' if (count < dev_priv->event_counter) \ ^~~~~ drivers/gpu/drm/savage/savage_bci.c:256:2: note: Taking false branch UPDATE_EVENT_COUNTER(); ^ drivers/gpu/drm/savage/savage_drv.h:566:3: note: expanded from macro 'UPDATE_EVENT_COUNTER' if (count < dev_priv->event_counter) \ ^ drivers/gpu/drm/savage/savage_bci.c:256:2: note: Loop condition is false. Exiting loop UPDATE_EVENT_COUNTER(); ^ drivers/gpu/drm/savage/savage_drv.h:561:33: note: expanded from macro 'UPDATE_EVENT_COUNTER' #define UPDATE_EVENT_COUNTER( ) do { \ ^ drivers/gpu/drm/savage/savage_bci.c:257:16: note: Field 'status_ptr' is non-null if (dev_priv->status_ptr) ^ drivers/gpu/drm/savage/savage_bci.c:257:2: note: Taking true branch if (dev_priv->status_ptr) ^ drivers/gpu/drm/savage/savage_bci.c:262:6: note: 'event' is <= field 'event_counter' if (event > dev_priv->event_counter) ^~~~~ drivers/gpu/drm/savage/savage_bci.c:262:2: note: Taking false branch if (event > dev_priv->event_counter) ^ drivers/gpu/drm/savage/savage_bci.c:268:12: note: Field 'buf' is non-null if (tail->buf && (TEST_AGE(&tail->age, event, wrap) || event == 0)) { ^ drivers/gpu/drm/savage/savage_bci.c:268:6: note: Left side of '&&' is true if (tail->buf && (TEST_AGE(&tail->age, event, wrap) || event == 0)) { ^ drivers/gpu/drm/savage/savage_bci.c:268:20: note: 'wrap' is > field 'wrap' if (tail->buf && (TEST_AGE(&tail->age, event, wrap) || event == 0)) { ^ drivers/gpu/drm/savage/savage_drv.h:578:18: note: expanded from macro 'TEST_AGE' ( (age)->wrap < (w) || ( (age)->wrap == (w) && (age)->event <= (e) ) ) ^~~ drivers/gpu/drm/savage/savage_bci.c:268:20: note: Left side of '||' is true if (tail->buf && (TEST_AGE(&tail->age, event, wrap) || event == 0)) { ^ drivers/gpu/drm/savage/savage_drv.h:578:22: note: expanded from macro 'TEST_AGE' ( (age)->wrap < (w) || ( (age)->wrap == (w) && (age)->event <= (e) ) ) ^ drivers/gpu/drm/savage/savage_bci.c:270:3: note: 'prev' initialized to a null pointer value drm_savage_buf_priv_t *prev = tail->prev; ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/savage/savage_bci.c:271:14: note: Access to field 'next' results in a dereference of a null pointer (loaded from variable 'prev') prev->next = next; ~~~~ ^ Suppressed 5 warnings (5 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. 12 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"; ^ ~~~~~~~~ drivers/pci/controller/pci-aardvark.c:1439:21: warning: The result of the left shift is undefined because the right operand is negative [clang-analyzer-core.UndefinedBinaryOperatorResult] win_size = (1ULL << (fls64(size)-1)) | ^ ~~~~~~~~~~~~~~~ drivers/pci/controller/pci-aardvark.c:1396:6: note: Assuming 'bridge' is non-null if (!bridge) ^~~~~~~ drivers/pci/controller/pci-aardvark.c:1396:2: note: Taking false branch if (!bridge) ^ drivers/pci/controller/pci-aardvark.c:1403:2: note: Left side of '&&' is false resource_list_for_each_entry(entry, &bridge->windows) { ^ include/linux/resource_ext.h:64:2: note: expanded from macro 'resource_list_for_each_entry' list_for_each_entry((entry), (list), node) ^ include/linux/list.h:628:13: note: expanded from macro 'list_for_each_entry' for (pos = list_first_entry(head, typeof(*pos), member); \ ^ include/linux/list.h:522:2: note: expanded from macro 'list_first_entry' list_entry((ptr)->next, type, member) ^ include/linux/list.h:511:2: note: expanded from macro 'list_entry' container_of(ptr, type, member) ^ include/linux/kernel.h:495:61: note: expanded from macro 'container_of' BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \ ^ drivers/pci/controller/pci-aardvark.c:1403:2: note: Taking false branch resource_list_for_each_entry(entry, &bridge->windows) { ^ include/linux/resource_ext.h:64:2: note: expanded from macro 'resource_list_for_each_entry' list_for_each_entry((entry), (list), node) ^ include/linux/list.h:628:13: note: expanded from macro 'list_for_each_entry' for (pos = list_first_entry(head, typeof(*pos), member); \ ^ include/linux/list.h:522:2: note: expanded from macro 'list_first_entry' list_entry((ptr)->next, type, member) ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:322:2: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:310:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ include/linux/compiler_types.h:302:3: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^ drivers/pci/controller/pci-aardvark.c:1403:2: note: Loop condition is false. Exiting loop resource_list_for_each_entry(entry, &bridge->windows) { ^ include/linux/resource_ext.h:64:2: note: expanded from macro 'resource_list_for_each_entry' list_for_each_entry((entry), (list), node) ^ include/linux/list.h:628:13: note: expanded from macro 'list_for_each_entry' for (pos = list_first_entry(head, typeof(*pos), member); \ ^ include/linux/list.h:522:2: note: expanded from macro 'list_first_entry' list_entry((ptr)->next, type, member) ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:322:2: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:310:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ include/linux/compiler_types.h:300:2: note: expanded from macro '__compiletime_assert' do { \ ^ drivers/pci/controller/pci-aardvark.c:1403:2: note: Loop condition is true. Entering loop body resource_list_for_each_entry(entry, &bridge->windows) { ^ include/linux/resource_ext.h:64:2: note: expanded from macro 'resource_list_for_each_entry' list_for_each_entry((entry), (list), node) ^ include/linux/list.h:628:2: note: expanded from macro 'list_for_each_entry' for (pos = list_first_entry(head, typeof(*pos), member); \ ^ drivers/pci/controller/pci-aardvark.c:1415:7: note: Assuming 'type' is equal to IORESOURCE_MEM if (type != IORESOURCE_MEM && type != IORESOURCE_MEM_64 && ^~~~~~~~~~~~~~~~~~~~~~ drivers/pci/controller/pci-aardvark.c:1415:30: note: Left side of '&&' is false if (type != IORESOURCE_MEM && type != IORESOURCE_MEM_64 && ^ drivers/pci/controller/pci-aardvark.c:1424:8: note: 'type' is equal to IORESOURCE_MEM if ((type == IORESOURCE_MEM || type == IORESOURCE_MEM_64) && ^~~~ 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 <bhelg...@google.com> :::::: CC: Bjorn Helgaas <bhelg...@google.com> --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
