Hi Matthew, kernel test robot noticed the following build errors: [auto build test ERROR on linus/master] [also build test ERROR on v6.9-rc4] [cannot apply to next-20240418] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Matthew-Wilcox-Oracle/ntfs3-Convert-ntfs_read_folio-to-use-a-folio/20240418-011140 base: linus/master patch link: https://lore.kernel.org/r/20240417170941.797116-9-willy%40infradead.org patch subject: [PATCH 08/10] ntfs3: Use a folio to read UpCase config: s390-allnoconfig (https://download.01.org/0day-ci/archive/20240419/202404190841.KPS2VQgB-lkp@xxxxxxxxx/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 7089c359a3845323f6f30c44a47dd901f2edfe63) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240419/202404190841.KPS2VQgB-lkp@xxxxxxxxx/reproduce) 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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202404190841.KPS2VQgB-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from arch/s390/kernel/asm-offsets.c:11: In file included from include/linux/kvm_host.h:16: In file included from include/linux/mm.h:2208: 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_" | ~~~~~~~~~~~ ^ ~~~ In file included from arch/s390/kernel/asm-offsets.c:11: In file included from include/linux/kvm_host.h:19: In file included from include/linux/msi.h:27: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:78: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) | ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' 102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) | ^ In file included from arch/s390/kernel/asm-offsets.c:11: In file included from include/linux/kvm_host.h:19: In file included from include/linux/msi.h:27: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:78: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) | ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' 115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) | ^ In file included from arch/s390/kernel/asm-offsets.c:11: In file included from include/linux/kvm_host.h:19: In file included from include/linux/msi.h:27: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:78: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 692 | readsb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 700 | readsw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 708 | readsl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 717 | writesb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 726 | writesw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 735 | writesl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ In file included from arch/s390/kernel/asm-offsets.c:11: In file included from include/linux/kvm_host.h:41: In file included from include/linux/kvm_para.h:5: In file included from include/uapi/linux/kvm_para.h:37: In file included from arch/s390/include/asm/kvm_para.h:25: In file included from arch/s390/include/asm/diag.h:12: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: >> include/linux/highmem.h:484:8: error: use of undeclared identifier 'i' 484 | for (i = 0; i < chunk / sizeof(*to); i++) | ^ include/linux/highmem.h:484:15: error: use of undeclared identifier 'i' 484 | for (i = 0; i < chunk / sizeof(*to); i++) | ^ include/linux/highmem.h:484:40: error: use of undeclared identifier 'i' 484 | for (i = 0; i < chunk / sizeof(*to); i++) | ^ 13 warnings and 3 errors generated. make[3]: *** [scripts/Makefile.build:117: arch/s390/kernel/asm-offsets.s] Error 1 make[3]: Target 'prepare' not remade because of errors. make[2]: *** [Makefile:1197: prepare0] Error 2 make[2]: Target 'prepare' not remade because of errors. make[1]: *** [Makefile:240: __sub-make] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:240: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +/i +484 include/linux/highmem.h 469 470 #ifdef __BIG_ENDIAN 471 static inline void memcpy_from_folio_le16(u16 *to, struct folio *folio, 472 size_t offset, size_t len) 473 { 474 VM_BUG_ON(offset + len > folio_size(folio)); 475 476 do { 477 const __le16 *from = kmap_local_folio(folio, offset); 478 size_t chunk = len; 479 480 if (folio_test_highmem(folio) && 481 chunk > PAGE_SIZE - offset_in_page(offset)) 482 chunk = PAGE_SIZE - offset_in_page(offset); 483 > 484 for (i = 0; i < chunk / sizeof(*to); i++) 485 *to++ = le16_to_cpu(*from++); 486 kunmap_local(from); 487 488 to += chunk / sizeof(*to); 489 offset += chunk; 490 len -= chunk; 491 } while (len > 0); 492 } 493 #else 494 static inline void memcpy_from_folio_le16(u16 *to, struct folio *folio, 495 size_t offset, size_t len) 496 { 497 memcpy_from_folio((char *)to, folio, offset, len); 498 } 499 #endif 500 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
