tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 9094437bec1ace7378abfe84597e722209d03f85 commit: 468b0cd7b1e1c131b3ee7d2ea8b96521d3faad8b [3042/3042] net:nebula-matrix:Add S1000 SNIC driver support config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20251027/202510271326.G0BQX79z-lkp@i...) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251027/202510271326.G0BQX79z-lkp@i...) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202510271326.G0BQX79z-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_hw/nbl_hw_leonis/nbl_phy_leonis.c:7: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_hw/nbl_hw_leonis/nbl_phy_leonis.h:10: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_core.h:10: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_include/nbl_product_base.h:10: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_include/nbl_include.h:12: In file included from include/linux/pci.h:1669: In file included from include/linux/dmapool.h:14: In file included from include/linux/scatterlist.h:8: In file included from include/linux/mm.h:2247: include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~ include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/nebula-matrix/nbl/nbl_hw/nbl_hw_leonis/nbl_phy_leonis.c:797:18: warning: variable 'pdev' set but not used [-Wunused-but-set-variable] 797 | struct pci_dev *pdev; | ^

...

drivers/net/ethernet/nebula-matrix/nbl/nbl_hw/nbl_hw_leonis/nbl_phy_leonis.c:4550:14: warning: attribute declaration must precede definition [-Wignored-attributes] 4550 | static union __maybe_unused epro_aft_u aft_def[NBL_FWD_TYPE_MAX] = { | ^ include/linux/compiler_attributes.h:356:56: note: expanded from macro '__maybe_unused' 356 | #define __maybe_unused __attribute__((__unused__)) | ^ drivers/net/ethernet/nebula-matrix/nbl/nbl_hw/nbl_hw_leonis/base/nbl_ppe_epro.h:590:7: note: previous definition is here 590 | union epro_aft_u { | ^ In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_hw/nbl_hw_leonis/nbl_phy_leonis.c:7: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_hw/nbl_hw_leonis/nbl_phy_leonis.h:10: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_core.h:10: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_include/nbl_product_base.h:10: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_include/nbl_include.h:10: In file included from include/linux/mod_devicetable.h:14: In file included from include/linux/uuid.h:11: In file included from include/linux/string.h:294: include/linux/fortify-string.h:606:4: warning: call to '__read_overflow2_field' declared with 'warning' attribute: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Wattribute-warning] 606 | __read_overflow2_field(q_size_field, size); | ^ 8 warnings generated. -- In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_hw/nbl_adminq.c:7: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_hw/nbl_adminq.h:10: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_hw/nbl_resource.h:10: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_core.h:10: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_include/nbl_product_base.h:10: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_include/nbl_include.h:12: In file included from include/linux/pci.h:1669: In file included from include/linux/dmapool.h:14: In file included from include/linux/scatterlist.h:8: In file included from include/linux/mm.h:2247: include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~ include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/nebula-matrix/nbl/nbl_hw/nbl_adminq.c:156:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough] 156 | default: | ^ drivers/net/ethernet/nebula-matrix/nbl/nbl_hw/nbl_adminq.c:156:2: note: insert 'break;' to avoid fall-through 156 | default: | ^ | break; drivers/net/ethernet/nebula-matrix/nbl/nbl_hw/nbl_adminq.c:1823:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 1823 | int ret = 0; | ^ 7 warnings generated. -- In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_service.c:7: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_ethtool.h:10: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_service.h:10: In file included from include/linux/mm.h:2247: include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~ include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_service.c:1378:26: warning: variable 'vector' set but not used [-Wunused-but-set-variable] 1378 | struct nbl_serv_vector *vector; | ^ drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_service.c:3025:28: warning: variable 'ring_mgt' set but not used [-Wunused-but-set-variable] 3025 | struct nbl_serv_ring_mgt *ring_mgt; | ^ drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_service.c:4002:22: warning: variable 'adapter' set but not used [-Wunused-but-set-variable] 4002 | struct nbl_adapter *adapter; | ^ drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_service.c:4552:36: warning: variable 'net_resource_mgt' set but not used [-Wunused-but-set-variable] 4552 | struct nbl_serv_net_resource_mgt *net_resource_mgt; | ^ drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_service.c:5726:15: warning: variable 'name' set but not used [-Wunused-but-set-variable] 5726 | u8 *strtab, *name, *product_code = NULL; | ^ drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_service.c:5730:6: warning: variable 'p4_size' set but not used [-Wunused-but-set-variable] 5730 | u32 p4_size = 0; | ^ 11 warnings generated. -- In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_ipsec.c:7: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_ipsec.h:13: In file included from include/linux/if_vlan.h:10: In file included from include/linux/netdevice.h:38: In file included from include/net/net_namespace.h:43: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:8: In file included from include/linux/cacheflush.h:5: In file included from arch/x86/include/asm/cacheflush.h:5: In file included from include/linux/mm.h:2247: include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~ include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_ipsec.c:70:29: warning: result of comparison of constant 256 with expression of type 'u8' (aka 'unsigned char') is always true [-Wtautological-constant-out-of-range-compare] 70 | x->props.replay_window != NBL_IPSEC_WINDOW_256) { | ~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~ 6 warnings generated. -- drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_tc.c:1265: warning: Cannot understand * @brief: handle action parse by type on line 1265 - I thought it was a doc line drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_tc.c:1290: warning: Cannot understand * @brief: handle action parse on line 1290 - I thought it was a doc line -- drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_dev_user.c:743: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * check dma conflict when multi devices in one iommu group, That is, when ACS not support.

vim +743 drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_dev_user.c 741 742 /**

743 * check dma conflict when multi devices in one iommu group, That is, when ACS not support. 744 * return -1 means multi devices conflict. 745 * return 1 means mapping exist and not conflict. 746 * return 0 means mapping not existed. 747 */ 748 static int nbl_userdev_check_dma_conflict(struct nbl_dev_user *user, 749 unsigned long vaddr, dma_addr_t iova, size_t size) 750 { 751 struct nbl_dev_user_iommu_group *group = user->group; 752 struct nbl_userdev_dma *dma; 753 struct rb_node *n; 754 struct page *h_page; 755 size_t unmapped = 0; 756 unsigned long vfn, pfn, vaddr_new; 757 dma_addr_t iova_new; 758 int ret; 759 760 dma = nbl_userdev_find_dma(group, vaddr, 1); 761 if (dma && dma->vaddr != vaddr) 762 return -1; 763 764 dma = nbl_userdev_find_dma(group, vaddr + size - 1, 0); 765 if (dma && dma->vaddr + dma->size != vaddr + size) 766 return -1; 767 768 if (!nbl_userdev_find_dma(group, vaddr, size)) 769 return 0; 770 n = nbl_userdev_find_dma_first_node(group, vaddr, size); 771 vaddr_new = vaddr; 772 iova_new = iova; 773 while (n) { 774 dma = rb_entry(n, struct nbl_userdev_dma, node); 775 if (dma->iova >= iova + size) 776 break; 777 778 if (dma->vaddr >= vaddr + size) 779 break; 780 781 if (dma->vaddr != vaddr_new || dma->iova != iova_new) 782 break; 783 784 vfn = vaddr_new >> PAGE_SHIFT; 785 ret = vfio_pin_pages(NBL_USERDEV_TO_VFIO_DEV(user), 786 vaddr_new, 1, IOMMU_READ | IOMMU_WRITE, &h_page); 787 if (ret <= 0) 788 break; 789 pfn = page_to_pfn(h_page); 790 vfio_unpin_pages(NBL_USERDEV_TO_VFIO_DEV(user), vaddr_new, 1); 791 if (pfn != dma->pfn) 792 break; 793 794 n = rb_next(n); 795 unmapped += dma->size; 796 vaddr_new += dma->size; 797 iova_new += dma->size; 798 } 799 800 if (unmapped != size) 801 return -1; 802 803 return 1; 804 } 805

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