Hi Baoquan, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Baoquan-He/asm-generic-iomap-h-remove-ARCH_HAS_IOREMAP_xx-macros/20230609-160014 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230609075528.9390-11-bhe%40redhat.com patch subject: [PATCH v6 10/19] s390: mm: Convert to GENERIC_IOREMAP config: s390-randconfig-r014-20230608 (https://download.01.org/0day-ci/archive/20230609/202306092349.88mhfjhr-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce (this is a W=1 build): mkdir -p ~/bin wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git git fetch akpm-mm mm-everything git checkout akpm-mm/mm-everything b4 shazam https://lore.kernel.org/r/20230609075528.9390-11-bhe@xxxxxxxxxx # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=s390 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/pcmcia/ 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/202306092349.88mhfjhr-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/pcmcia/cistpl.c:21: In file included from include/linux/pci.h:39: 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 drivers/pcmcia/cistpl.c:21: In file included from include/linux/pci.h:39: 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 drivers/pcmcia/cistpl.c:21: In file included from include/linux/pci.h:39: 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); | ~~~~~~~~~~ ^ >> drivers/pcmcia/cistpl.c:72:3: error: call to undeclared function 'iounmap'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 72 | iounmap(s->cis_virt); | ^ arch/s390/include/asm/io.h:29:17: note: expanded from macro 'iounmap' 29 | #define iounmap iounmap | ^ drivers/pcmcia/cistpl.c:72:3: note: did you mean 'vunmap'? arch/s390/include/asm/io.h:29:17: note: expanded from macro 'iounmap' 29 | #define iounmap iounmap | ^ include/linux/vmalloc.h:167:13: note: 'vunmap' declared here 167 | extern void vunmap(const void *addr); | ^ >> drivers/pcmcia/cistpl.c:103:17: error: call to undeclared function 'ioremap'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 103 | s->cis_virt = ioremap(mem->res->start, s->map_size); | ^ >> drivers/pcmcia/cistpl.c:103:15: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion] 103 | s->cis_virt = ioremap(mem->res->start, s->map_size); | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/pcmcia/cistpl.c:110:3: error: call to undeclared function 'iounmap'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 110 | iounmap(s->cis_virt); | ^ arch/s390/include/asm/io.h:29:17: note: expanded from macro 'iounmap' 29 | #define iounmap iounmap | ^ drivers/pcmcia/cistpl.c:117:4: error: call to undeclared function 'iounmap'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 117 | iounmap(s->cis_virt); | ^ arch/s390/include/asm/io.h:29:17: note: expanded from macro 'iounmap' 29 | #define iounmap iounmap | ^ drivers/pcmcia/cistpl.c:118:15: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion] 118 | s->cis_virt = ioremap(mem->static_start, s->map_size); | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 12 warnings and 6 errors generated. vim +/iounmap +72 drivers/pcmcia/cistpl.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 60 ^1da177e4c3f41 Linus Torvalds 2005-04-16 61 void release_cis_mem(struct pcmcia_socket *s) ^1da177e4c3f41 Linus Torvalds 2005-04-16 62 { 6b8e087b86c59c Dominik Brodowski 2010-01-12 63 mutex_lock(&s->ops_mutex); ^1da177e4c3f41 Linus Torvalds 2005-04-16 64 if (s->cis_mem.flags & MAP_ACTIVE) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 65 s->cis_mem.flags &= ~MAP_ACTIVE; ^1da177e4c3f41 Linus Torvalds 2005-04-16 66 s->ops->set_mem_map(s, &s->cis_mem); ^1da177e4c3f41 Linus Torvalds 2005-04-16 67 if (s->cis_mem.res) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 68 release_resource(s->cis_mem.res); ^1da177e4c3f41 Linus Torvalds 2005-04-16 69 kfree(s->cis_mem.res); ^1da177e4c3f41 Linus Torvalds 2005-04-16 70 s->cis_mem.res = NULL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 71 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 @72 iounmap(s->cis_virt); ^1da177e4c3f41 Linus Torvalds 2005-04-16 73 s->cis_virt = NULL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 74 } 6b8e087b86c59c Dominik Brodowski 2010-01-12 75 mutex_unlock(&s->ops_mutex); ^1da177e4c3f41 Linus Torvalds 2005-04-16 76 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 77 cc448baf85c8f2 Lee Jones 2021-03-12 78 /* 6e83ee075ed749 Dominik Brodowski 2010-03-02 79 * set_cis_map() - map the card memory at "card_offset" into virtual space. 6e83ee075ed749 Dominik Brodowski 2010-03-02 80 * ^1da177e4c3f41 Linus Torvalds 2005-04-16 81 * If flags & MAP_ATTRIB, map the attribute space, otherwise ^1da177e4c3f41 Linus Torvalds 2005-04-16 82 * map the memory space. 7ab24855482fbc Dominik Brodowski 2010-02-17 83 * 7ab24855482fbc Dominik Brodowski 2010-02-17 84 * Must be called with ops_mutex held. ^1da177e4c3f41 Linus Torvalds 2005-04-16 85 */ 6e83ee075ed749 Dominik Brodowski 2010-03-02 86 static void __iomem *set_cis_map(struct pcmcia_socket *s, 6e83ee075ed749 Dominik Brodowski 2010-03-02 87 unsigned int card_offset, unsigned int flags) ^1da177e4c3f41 Linus Torvalds 2005-04-16 88 { ^1da177e4c3f41 Linus Torvalds 2005-04-16 89 pccard_mem_map *mem = &s->cis_mem; 2ad0a0a793cbd8 Dominik Brodowski 2005-06-27 90 int ret; 2ad0a0a793cbd8 Dominik Brodowski 2005-06-27 91 2e5a3e79091615 Dominik Brodowski 2005-07-28 92 if (!(s->features & SS_CAP_STATIC_MAP) && (mem->res == NULL)) { 6e83ee075ed749 Dominik Brodowski 2010-03-02 93 mem->res = pcmcia_find_mem_region(0, s->map_size, 6e83ee075ed749 Dominik Brodowski 2010-03-02 94 s->map_size, 0, s); ^1da177e4c3f41 Linus Torvalds 2005-04-16 95 if (mem->res == NULL) { f2e6cf76751d47 Joe Perches 2014-10-10 96 dev_notice(&s->dev, "cs: unable to map card memory!\n"); ^1da177e4c3f41 Linus Torvalds 2005-04-16 97 return NULL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 98 } 2e5a3e79091615 Dominik Brodowski 2005-07-28 99 s->cis_virt = NULL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 100 } 2e5a3e79091615 Dominik Brodowski 2005-07-28 101 2e5a3e79091615 Dominik Brodowski 2005-07-28 102 if (!(s->features & SS_CAP_STATIC_MAP) && (!s->cis_virt)) 2e5a3e79091615 Dominik Brodowski 2005-07-28 @103 s->cis_virt = ioremap(mem->res->start, s->map_size); 2e5a3e79091615 Dominik Brodowski 2005-07-28 104 ^1da177e4c3f41 Linus Torvalds 2005-04-16 105 mem->card_start = card_offset; ^1da177e4c3f41 Linus Torvalds 2005-04-16 106 mem->flags = flags; 2e5a3e79091615 Dominik Brodowski 2005-07-28 107 2ad0a0a793cbd8 Dominik Brodowski 2005-06-27 108 ret = s->ops->set_mem_map(s, mem); 2ad0a0a793cbd8 Dominik Brodowski 2005-06-27 109 if (ret) { 2ad0a0a793cbd8 Dominik Brodowski 2005-06-27 110 iounmap(s->cis_virt); 2e5a3e79091615 Dominik Brodowski 2005-07-28 111 s->cis_virt = NULL; 2ad0a0a793cbd8 Dominik Brodowski 2005-06-27 112 return NULL; 2ad0a0a793cbd8 Dominik Brodowski 2005-06-27 113 } 2ad0a0a793cbd8 Dominik Brodowski 2005-06-27 114 ^1da177e4c3f41 Linus Torvalds 2005-04-16 115 if (s->features & SS_CAP_STATIC_MAP) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 116 if (s->cis_virt) ^1da177e4c3f41 Linus Torvalds 2005-04-16 117 iounmap(s->cis_virt); ^1da177e4c3f41 Linus Torvalds 2005-04-16 118 s->cis_virt = ioremap(mem->static_start, s->map_size); ^1da177e4c3f41 Linus Torvalds 2005-04-16 119 } 2e5a3e79091615 Dominik Brodowski 2005-07-28 120 ^1da177e4c3f41 Linus Torvalds 2005-04-16 121 return s->cis_virt; ^1da177e4c3f41 Linus Torvalds 2005-04-16 122 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 123 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
